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authorSimon Marlow <simonmar@microsoft.com>2006-04-07 02:05:11 +0000
committerSimon Marlow <simonmar@microsoft.com>2006-04-07 02:05:11 +0000
commit0065d5ab628975892cea1ec7303f968c3338cbe1 (patch)
tree8e2afe0ab48ee33cf95009809d67c9649573ef92 /driver
parent28a464a75e14cece5db40f2765a29348273ff2d2 (diff)
downloadhaskell-0065d5ab628975892cea1ec7303f968c3338cbe1.tar.gz
Reorganisation of the source tree
Most of the other users of the fptools build system have migrated to Cabal, and with the move to darcs we can now flatten the source tree without losing history, so here goes. The main change is that the ghc/ subdir is gone, and most of what it contained is now at the top level. The build system now makes no pretense at being multi-project, it is just the GHC build system. No doubt this will break many things, and there will be a period of instability while we fix the dependencies. A straightforward build should work, but I haven't yet fixed binary/source distributions. Changes to the Building Guide will follow, too.
Diffstat (limited to 'driver')
-rw-r--r--driver/Makefile28
-rw-r--r--driver/ghc-usage.txt80
-rw-r--r--driver/ghc/Makefile31
-rw-r--r--driver/ghc/ghc.sh2
-rw-r--r--driver/ghci-usage.txt26
-rw-r--r--driver/ghci/Makefile69
-rw-r--r--driver/ghci/ghci.c168
-rw-r--r--driver/ghci/ghci.icobin0 -> 766 bytes
-rw-r--r--driver/ghci/ghci.rc1
-rw-r--r--driver/ghci/ghci.sh2
-rw-r--r--driver/ghci/ghcii.sh3
-rw-r--r--driver/mangler/Makefile22
-rw-r--r--driver/mangler/ghc-asm.lprl1775
-rw-r--r--driver/ordering-passes257
-rw-r--r--driver/split/Makefile17
-rw-r--r--driver/split/ghc-split.lprl618
-rw-r--r--driver/test_mangler29
17 files changed, 3128 insertions, 0 deletions
diff --git a/driver/Makefile b/driver/Makefile
new file mode 100644
index 0000000000..3a87ab43c5
--- /dev/null
+++ b/driver/Makefile
@@ -0,0 +1,28 @@
+# -----------------------------------------------------------------------------=
+# $Id: Makefile,v 1.76 2005/03/02 09:49:11 simonmar Exp $
+#
+# (c) The University of Glasgow 2002
+#
+
+TOP=..
+include $(TOP)/mk/boilerplate.mk
+
+SUBDIRS = mangler split ghc ghci
+
+boot all :: package.conf.inplace package.conf
+
+package.conf.inplace :
+ echo "[]" > $@
+
+package.conf :
+ echo "[]" > $@
+
+override datadir = $(libdir)
+INSTALL_DATAS += package.conf ghc-usage.txt ghci-usage.txt
+
+# Since cleaning effectively uninstalls all the packages, we must
+# remove the stamp files that the build system uses to avoid unnecessarily
+# re-installing packages.
+CLEAN_FILES += package.conf* stamp-pkg-conf*
+
+include $(TOP)/mk/target.mk
diff --git a/driver/ghc-usage.txt b/driver/ghc-usage.txt
new file mode 100644
index 0000000000..e95d5846b9
--- /dev/null
+++ b/driver/ghc-usage.txt
@@ -0,0 +1,80 @@
+Usage:
+
+ $$ [command-line-options-and-input-files]
+
+To compile and link a complete Haskell program, run the compiler like
+so:
+
+ $$ --make Main
+
+where the module Main is in a file named Main.hs (or Main.lhs) in the
+current directory. The other modules in the program will be located
+and compiled automatically, and the linked program will be placed in
+the file `a.out' (or `Main.exe' on Windows).
+
+Alternatively, $$ can be used to compile files individually. Each
+input file is guided through (some of the) possible phases of a
+compilation:
+
+ - unlit: extract code from a "literate program"
+ - hscpp: run code through the C pre-processor (if -cpp flag given)
+ - hsc: run the Haskell compiler proper
+ - gcc: run the C compiler (if compiling via C)
+ - as: run the assembler
+ - ld: run the linker
+
+For each input file, the phase to START with is determined by the
+file's suffix:
+
+ - .lhs literate Haskell unlit
+ - .hs plain Haskell ghc
+ - .hc C from the Haskell compiler gcc
+ - .c C not from the Haskell compiler gcc
+ - .s assembly language as
+ - other passed directly to the linker ld
+
+The phase at which to STOP processing is determined by a command-line
+option:
+
+ -E stop after generating preprocessed, de-litted Haskell
+ (used in conjunction with -cpp)
+ -C stop after generating C (.hc output)
+ -S stop after generating assembler (.s output)
+ -c stop after generating object files (.o output)
+
+Other commonly-used options are:
+
+ -v[n] Control verbosity (n is 0--5, normal verbosity level is 1,
+ -v alone is equivalent to -v3)
+
+ -fglasgow-exts Allow Glasgow extensions (unboxed types, etc.)
+
+ -O An `optimising' package of compiler flags, for faster code
+
+ -prof Compile for cost-centre profiling
+ (add -auto-all for automagic cost-centres on all
+ top-level functions)
+
+ -H14m Increase compiler's heap size (might make compilation
+ faster, especially on large source files).
+
+ -M Output Makefile rules recording the
+ dependencies of a list of Haskell files.
+
+Given the above, here are some TYPICAL invocations of $$:
+
+ # compile a Haskell module to a .o file, optimising:
+ % $$ -c -O Foo.hs
+ # link three .o files into an executable called "test":
+ % $$ -o test Foo.o Bar.o Baz.o
+ # compile a Haskell module to C (a .hc file), using a bigger heap:
+ % $$ -C -H16m Foo.hs
+ # compile Haskell-produced C (.hc) to assembly language:
+ % $$ -S Foo.hc
+
+The User's Guide has more information about GHC's *many* options. An
+online copy can be found here:
+
+ http://www.haskell.org/ghc/documentation.html
+
+------------------------------------------------------------------------
diff --git a/driver/ghc/Makefile b/driver/ghc/Makefile
new file mode 100644
index 0000000000..26965569a4
--- /dev/null
+++ b/driver/ghc/Makefile
@@ -0,0 +1,31 @@
+#-----------------------------------------------------------------------------
+# $Id: Makefile,v 1.6 2001/10/23 16:32:30 rrt Exp $
+#
+
+TOP=../..
+include $(TOP)/mk/boilerplate.mk
+
+# -----------------------------------------------------------------------------
+# ghc script
+
+ifeq "$(BIN_DIST)" "1"
+GHCBIN=$$\"\"libexecdir/ghc-$(ProjectVersion)
+GHCLIB=$$\"\"libdir
+else
+GHCBIN=$(libexecdir)/ghc-$(ProjectVersion)
+GHCLIB=$(libdir)
+endif # BIN_DIST
+
+ifneq "$(TARGETPLATFORM)" "i386-unknown-mingw32"
+SCRIPT_PROG = ghc-$(ProjectVersion)
+LINK = ghc
+endif
+SCRIPT_OBJS = ghc.sh
+INTERP = $(SHELL)
+TOPDIROPT = -B$(GHCLIB)
+SCRIPT_SUBST_VARS = GHCBIN TOPDIROPT
+INSTALL_SCRIPTS += $(SCRIPT_PROG)
+
+# -----------------------------------------------------------------------------
+
+include $(TOP)/mk/target.mk
diff --git a/driver/ghc/ghc.sh b/driver/ghc/ghc.sh
new file mode 100644
index 0000000000..780b9498be
--- /dev/null
+++ b/driver/ghc/ghc.sh
@@ -0,0 +1,2 @@
+# Mini-driver for GHC
+exec $GHCBIN $TOPDIROPT ${1+"$@"}
diff --git a/driver/ghci-usage.txt b/driver/ghci-usage.txt
new file mode 100644
index 0000000000..4a633fc3e1
--- /dev/null
+++ b/driver/ghci-usage.txt
@@ -0,0 +1,26 @@
+Usage:
+
+ ghci [command-line-options-and-input-files]
+
+The kinds of input files that can be given on the command-line
+include:
+
+ - Haskell source files (.hs or .lhs suffix)
+ - Object files (.o suffix, or .obj on Windows)
+ - Dynamic libraries (.so suffix, or .dll on Windows)
+
+In addition, ghci accepts most of the command-line options that plain
+GHC does. Some of the options that are commonly used are:
+
+ -fglasgow-exts Allow Glasgow extensions (unboxed types, etc.)
+
+ -i<dir> Search for imported modules in the directory <dir>.
+
+ -H32m Increase GHC's default heap size to 32m
+
+ -cpp Enable CPP processing of source files
+
+Full details can be found in the User's Guide, an online copy of which
+can be found here:
+
+ http://www.haskell.org/ghc/documentation.html
diff --git a/driver/ghci/Makefile b/driver/ghci/Makefile
new file mode 100644
index 0000000000..7c67ac546c
--- /dev/null
+++ b/driver/ghci/Makefile
@@ -0,0 +1,69 @@
+#-----------------------------------------------------------------------------
+# $Id: Makefile,v 1.11 2005/05/05 00:58:38 sof Exp $
+#
+
+TOP=../..
+include $(TOP)/mk/boilerplate.mk
+
+# hack for ghci-inplace script, see below
+INSTALLING=1
+
+# -----------------------------------------------------------------------------
+# ghci script
+
+ifeq "$(INSTALLING)" "1"
+ifeq "$(BIN_DIST)" "1"
+GHCBIN=$$\"\"libexecdir/ghc-$(ProjectVersion)
+GHCLIB=$$\"\"libdir
+else
+GHCBIN=$(libexecdir)/ghc-$(ProjectVersion)
+GHCLIB=$(libdir)
+endif # BIN_DIST
+else
+GHCBIN=$(FPTOOLS_TOP_ABS)/$(GHC_COMPILER_DIR_REL)/ghc-$(ProjectVersion)
+GHCLIB=$(FPTOOLS_TOP_ABS)
+endif
+
+INSTALLED_SCRIPT_PROG = ghci-$(ProjectVersion)
+INPLACE_SCRIPT_PROG = ghci-inplace
+
+ifeq "$(TARGETPLATFORM)" "i386-unknown-mingw32"
+C_PROG = ghci
+C_OBJS += ghci.res
+else
+C_SRCS=
+endif
+
+SCRIPT_OBJS = ghci.sh
+INTERP = $(SHELL)
+SCRIPT_SUBST_VARS = GHCBIN TOPDIROPT
+ifneq "$(TARGETPLATFORM)" "i386-unknown-mingw32"
+INSTALL_SCRIPTS += $(SCRIPT_PROG)
+else
+INSTALL_SCRIPTS += ghcii.sh
+INSTALL_PROGS += $(C_PROG)
+endif
+TOPDIROPT = -B$(GHCLIB)
+
+ifeq "$(INSTALLING)" "1"
+SCRIPT_PROG = $(INSTALLED_SCRIPT_PROG)
+ifneq "$(TARGETPLATFORM)" "i386-unknown-mingw32"
+LINK = ghci
+endif
+else
+SCRIPT_PROG = $(INPLACE_SCRIPT_PROG)
+endif
+
+# don't recurse on 'make install'
+#
+ifeq "$(INSTALLING)" "1"
+all clean distclean maintainer-clean ::
+ $(MAKE) INSTALLING=0 BIN_DIST=0 $(MFLAGS) $@
+endif
+
+ifeq "$(TARGETPLATFORM)" "i386-unknown-mingw32"
+ghci.res : ghci.rc ghci.ico
+ windres -o ghci.res -i ghci.rc -O coff
+endif
+
+include $(TOP)/mk/target.mk
diff --git a/driver/ghci/ghci.c b/driver/ghci/ghci.c
new file mode 100644
index 0000000000..f21a12a4ba
--- /dev/null
+++ b/driver/ghci/ghci.c
@@ -0,0 +1,168 @@
+/*
+ *
+ * $Id: ghci.c,v 1.10 2005/05/05 00:58:38 sof Exp $
+ *
+ * ghci wrapper for Win32 only
+ *
+ * This wrapper invokes ghc.exe with the added command-line
+ * option "--interactive".
+ * (On Unix this is done by the ghci.sh shell script, but
+ * that does not work so well on Win32.)
+ *
+ * (c) The GHC Team 2001
+ *
+ * ghc.exe is searched for using the 'normal' search rules
+ * for DLLs / EXEs (i.e., first in the same dir as this wrapper,
+ * then system dirs, then PATH).
+ *
+ * To compile:
+ *
+ * MSVC: cl /o ghci.exe /c ghciwrap.c
+ * mingw: gcc -mno-cygwin -o ghci.exe ghciwrap.c
+ *
+ * If you want to associate your own icon with the wrapper,
+ * here's how to do it:
+ *
+ * * Create a one-line .rc file, ghci.rc (say), containing
+ * 0 ICON "hsicon.ico"
+ * (subst the string literal for the name of your icon file).
+ * * Compile it up (assuming the .ico file is in the same dir
+ * as the .rc file):
+ *
+ * MSVC: rc /i. /fo ghci.res ghci.rc
+ * mingw: windres -o ghci.res -i ghci.rc -O coff
+ *
+ * * Add the resulting .res file to the link line of the wrapper:
+ *
+ * MSVC: cl /o ghci.exe /c ghciwrap.c ghci.res
+ * mingw: gcc -mno-cygwin -o ghci.exe ghciwrap.c ghci.res
+ *
+ */
+
+#include <windows.h>
+#include <stdio.h>
+#include <process.h>
+#include <malloc.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <io.h>
+
+#define BINARY_NAME "ghc.exe"
+#define IACTIVE_OPTION "--interactive"
+
+#define errmsg(msg) fprintf(stderr, msg "\n"); fflush(stderr)
+#define errmsg1(msg,val) fprintf(stderr, msg "\n",val); fflush(stderr)
+
+int
+main(int argc, char** argv)
+{
+ TCHAR binPath[FILENAME_MAX+1];
+ TCHAR binPathShort[MAX_PATH+1];
+ DWORD dwSize = FILENAME_MAX;
+ TCHAR* szEnd;
+ int i;
+ char* new_cmdline;
+ char *ptr, *src;
+ unsigned int cmdline_len = 0;
+ char **pp;
+ LPTSTR pp1;
+
+ STARTUPINFO si;
+ PROCESS_INFORMATION pi;
+
+ ZeroMemory(&pi, sizeof(PROCESS_INFORMATION));
+ ZeroMemory(&si, sizeof(STARTUPINFO));
+ si.cb = sizeof(STARTUPINFO);
+
+ if ( getenv("_") ) {
+ printf("WARNING: GHCi invoked via 'ghci.exe' in *nix-like shells (cygwin-bash, in particular)\n");
+ printf(" doesn't handle Ctrl-C well; use the 'ghcii.sh' shell wrapper instead\n");
+ fflush(stdout);
+ }
+
+ /* Locate the binary we want to start up */
+ if ( !SearchPath(NULL,
+ BINARY_NAME,
+ NULL,
+ dwSize,
+ (char*)binPath,
+ &szEnd) ) {
+ errmsg1("%s: Unable to locate ghc.exe", argv[0]);
+ return 1;
+ }
+
+ dwSize = MAX_PATH;
+ /* Turn the path into short form - LFN form causes problems
+ when passed in argv[0]. */
+ if ( !(GetShortPathName(binPath, binPathShort, dwSize)) ) {
+ errmsg1("%s: Unable to locate ghc.exe", argv[0]);
+ return 1;
+ }
+
+ /* Compute length of the flattened 'argv', including extra IACTIVE_OPTION (and spaces!) */
+ cmdline_len += 1 + strlen(IACTIVE_OPTION);
+ for(i=1;i<argc;i++) {
+ /* Note: play it safe and quote all argv strings */
+ cmdline_len += 1 + strlen(argv[i]) + 2;
+ }
+ new_cmdline = (char*)malloc(sizeof(char) * (cmdline_len + 1));
+ if (!new_cmdline) {
+ errmsg1("%s: failed to start up ghc.exe; insufficient memory", argv[0]);
+ return 1;
+ }
+
+ strcpy(new_cmdline, " " IACTIVE_OPTION);
+ ptr = new_cmdline + strlen(" " IACTIVE_OPTION);
+ for(i=1;i<argc;i++) {
+ *ptr++ = ' ';
+ *ptr++ = '"';
+ src = argv[i];
+ while(*src) {
+ *ptr++ = *src++;
+ }
+ *ptr++ = '"';
+ }
+ *ptr = '\0';
+
+ /* Note: Used to use _spawnv(_P_WAIT, ...) here, but it suffered
+ from the parent intercepting console events such as Ctrl-C,
+ which it shouldn't. Installing an ignore-all console handler
+ didn't do the trick either.
+
+ Irrespective of this issue, using CreateProcess() is preferable,
+ as it makes this wrapper work on both mingw and cygwin.
+ */
+#if 0
+ fprintf(stderr, "Invoking ghc: %s %s\n", binPathShort, new_cmdline); fflush(stderr);
+#endif
+ if (!CreateProcess(binPathShort,
+ new_cmdline,
+ NULL,
+ NULL,
+ TRUE,
+ 0, /* dwCreationFlags */
+ NULL, /* lpEnvironment */
+ NULL, /* lpCurrentDirectory */
+ &si, /* lpStartupInfo */
+ &pi) ) {
+ errmsg1("Unable to start ghc.exe (error code: %lu)", GetLastError());
+ return 1;
+ }
+ /* Disable handling of console events in the parent by dropping its
+ * connection to the console. This has the (minor) downside of not being
+ * able to subsequently emit any error messages to the console.
+ */
+ FreeConsole();
+
+ switch (WaitForSingleObject(pi.hProcess, INFINITE) ) {
+ case WAIT_OBJECT_0:
+ return 0;
+ case WAIT_ABANDONED:
+ case WAIT_FAILED:
+ /* in the event we get any hard errors, bring the child to a halt. */
+ TerminateProcess(pi.hProcess,1);
+ return 1;
+ default:
+ return 1;
+ }
+}
diff --git a/driver/ghci/ghci.ico b/driver/ghci/ghci.ico
new file mode 100644
index 0000000000..680be76e71
--- /dev/null
+++ b/driver/ghci/ghci.ico
Binary files differ
diff --git a/driver/ghci/ghci.rc b/driver/ghci/ghci.rc
new file mode 100644
index 0000000000..01ed2f4081
--- /dev/null
+++ b/driver/ghci/ghci.rc
@@ -0,0 +1 @@
+0 ICON "ghci.ico"
diff --git a/driver/ghci/ghci.sh b/driver/ghci/ghci.sh
new file mode 100644
index 0000000000..b0200477b8
--- /dev/null
+++ b/driver/ghci/ghci.sh
@@ -0,0 +1,2 @@
+# Mini-driver for GHCi
+exec $GHCBIN $TOPDIROPT --interactive ${1+"$@"}
diff --git a/driver/ghci/ghcii.sh b/driver/ghci/ghcii.sh
new file mode 100644
index 0000000000..70d98988b8
--- /dev/null
+++ b/driver/ghci/ghcii.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+# Mini-driver for GHCi
+exec $0/../ghc --interactive ${1+"$@"}
diff --git a/driver/mangler/Makefile b/driver/mangler/Makefile
new file mode 100644
index 0000000000..7b482e1d98
--- /dev/null
+++ b/driver/mangler/Makefile
@@ -0,0 +1,22 @@
+#-----------------------------------------------------------------------------
+# $Id: Makefile,v 1.3 2001/03/23 16:36:21 simonmar Exp $
+
+TOP=../..
+include $(TOP)/mk/boilerplate.mk
+
+SCRIPT_PROG = ghc-asm
+
+INTERP=perl
+
+SCRIPT_SUBST_VARS := TARGETPLATFORM
+
+INSTALL_LIBEXEC_SCRIPTS += $(SCRIPT_PROG)
+
+CLEAN_FILES += $(SCRIPT_OBJS)
+
+# needed for bootstrapping with HC files
+ifeq "$(BootingFromHc)" "YES"
+boot :: all
+endif
+
+include $(TOP)/mk/target.mk
diff --git a/driver/mangler/ghc-asm.lprl b/driver/mangler/ghc-asm.lprl
new file mode 100644
index 0000000000..902593ea7f
--- /dev/null
+++ b/driver/mangler/ghc-asm.lprl
@@ -0,0 +1,1775 @@
+%************************************************************************
+%* *
+\section[Driver-asm-fiddling]{Fiddling with assembler files}
+%* *
+%************************************************************************
+
+Tasks:
+\begin{itemize}
+\item
+Utterly stomp out C functions' prologues and epilogues; i.e., the
+stuff to do with the C stack.
+\item
+Any other required tidying up.
+\end{itemize}
+
+General note [chak]: Many regexps are very fragile because they rely on white
+space being in the right place. This caused trouble with gcc 2.95 (at least
+on Linux), where the use of white space in .s files generated by gcc suddenly
+changed. To guarantee compatibility across different versions of gcc, make
+sure (at least on i386-.*-linux) that regexps tolerate varying amounts of white
+space between an assembler statement and its arguments as well as after a the
+comma separating multiple arguments.
+
+\emph{For the time being, I have corrected the regexps for i386-.*-linux. I
+didn't touch all the regexps for other i386 platforms, as I don't have
+a box to test these changes.}
+
+HPPA specific notes:
+\begin{itemize}
+\item
+The HP linker is very picky about symbols being in the appropriate
+space (code vs. data). When we mangle the threaded code to put the
+info tables just prior to the code, they wind up in code space
+rather than data space. This means that references to *_info from
+un-mangled parts of the RTS (e.g. unthreaded GC code) get
+unresolved symbols. Solution: mini-mangler for .c files on HP. I
+think this should really be triggered in the driver by a new -rts
+option, so that user code doesn't get mangled inappropriately.
+\item
+With reversed tables, jumps are to the _info label rather than to
+the _entry label. The _info label is just an address in code
+space, rather than an entry point with the descriptive blob we
+talked about yesterday. As a result, you can't use the call-style
+JMP_ macro. However, some JMP_ macros take _info labels as targets
+and some take code entry points within the RTS. The latter won't
+work with the goto-style JMP_ macro. Sigh. Solution: Use the goto
+style JMP_ macro, and mangle some more assembly, changing all
+"RP'literal" and "LP'literal" references to "R'literal" and
+"L'literal," so that you get the real address of the code, rather
+than the descriptive blob. Also change all ".word P%literal"
+entries in info tables and vector tables to just ".word literal,"
+for the same reason. Advantage: No more ridiculous call sequences.
+\end{itemize}
+
+%************************************************************************
+%* *
+\subsection{Top-level code}
+%* *
+%************************************************************************
+
+\begin{code}
+$TargetPlatform = $TARGETPLATFORM;
+
+($Pgm = $0) =~ s|.*/||;
+$ifile = $ARGV[0];
+$ofile = $ARGV[1];
+
+if ( $TargetPlatform =~ /^i386-/ ) {
+ if ($ARGV[2] eq '') {
+ $StolenX86Regs = 4;
+ } else {
+ $StolenX86Regs = $ARGV[2];
+ }
+}
+
+&mangle_asm($ifile,$ofile);
+
+exit(0);
+\end{code}
+
+%************************************************************************
+%* *
+\subsection{Constants for various architectures}
+%* *
+%************************************************************************
+
+\begin{code}
+sub init_TARGET_STUFF {
+
+ #--------------------------------------------------------#
+ if ( $TargetPlatform =~ /^alpha-.*-.*/ ) {
+
+ $T_STABBY = 0; # 1 iff .stab things (usually if a.out format)
+ $T_US = ''; # _ if symbols have an underscore on the front
+ $T_PRE_APP = 'DONT THINK THIS APPLIES'; # regexp that says what comes before APP/NO_APP
+ $T_CONST_LBL = '^\$L?C(\d+):$'; # regexp for what such a lbl looks like
+ $T_POST_LBL = ':';
+
+ $T_MOVE_DIRVS = '^(\s*(\$.*\.\.ng:|\.align\s+\d+|\.(globl|ent)\s+\S+|\#.*|\.(file|loc)\s+\S+\s+\S+|\.text|\.r?data)\n)';
+ $T_COPY_DIRVS = '^\s*(\$.*\.\.ng:|\#|\.(file|globl|ent|loc))';
+
+ $T_DOT_WORD = '\.(long|quad|byte|word)';
+ $T_DOT_GLOBAL = '^\t\.globl';
+ $T_HDR_literal = "\.rdata\n\t\.align 3\n";
+ $T_HDR_misc = "\.text\n\t\.align 3\n";
+ $T_HDR_data = "\.data\n\t\.align 3\n";
+ $T_HDR_rodata = "\.rdata\n\t\.align 3\n";
+ $T_HDR_closure = "\.data\n\t\.align 3\n";
+ $T_HDR_info = "\.text\n\t\.align 3\n";
+ $T_HDR_entry = "\.text\n\t\.align 3\n";
+ $T_HDR_vector = "\.text\n\t\.align 3\n";
+
+ #--------------------------------------------------------#
+ } elsif ( $TargetPlatform =~ /^hppa/ ) {
+
+ $T_STABBY = 0; # 1 iff .stab things (usually if a.out format)
+ $T_US = ''; # _ if symbols have an underscore on the front
+ $T_PRE_APP = 'DONT THINK THIS APPLIES'; # regexp that says what comes before APP/NO_APP
+ $T_CONST_LBL = '^L\$C(\d+)$'; # regexp for what such a lbl looks like
+ $T_POST_LBL = '';
+
+ $T_MOVE_DIRVS = '^((\s+\.(IMPORT|EXPORT|PARAM).*|\s+\.align\s+\d+|\s+\.(SPACE|SUBSPA)\s+\S+|\s*)\n)';
+ $T_COPY_DIRVS = '^\s+\.(IMPORT|EXPORT)';
+
+ $T_DOT_WORD = '\.(blockz|word|half|byte)';
+ $T_DOT_GLOBAL = '^\s+\.EXPORT';
+ $T_HDR_literal = "\t.SPACE \$TEXT\$\n\t.SUBSPA \$LIT\$\n";
+ $T_HDR_misc = "\t.SPACE \$TEXT\$\n\t.SUBSPA \$CODE\$\n\t\.align 4\n";
+ $T_HDR_data = "\t.SPACE \$PRIVATE\$\n\t.SUBSPA \$DATA\$\n\t\.align 4\n";
+ $T_HDR_rodata = "\t.SPACE \$PRIVATE\$\n\t.SUBSPA \$DATA\$\n\t\.align 4\n";
+ $T_HDR_closure = "\t.SPACE \$PRIVATE\$\n\t.SUBSPA \$DATA\$\n\t\.align 4\n";
+ $T_HDR_info = "\t.SPACE \$TEXT\$\n\t.SUBSPA \$CODE\$\n\t\.align 4\n";
+ $T_HDR_entry = "\t.SPACE \$TEXT\$\n\t.SUBSPA \$CODE\$\n\t\.align 4\n";
+ $T_HDR_vector = "\t.SPACE \$TEXT\$\n\t.SUBSPA \$CODE\$\n\t\.align 4\n";
+
+ #--------------------------------------------------------#
+ } elsif ( $TargetPlatform =~ /^i386-.*-(linuxaout|freebsd2|nextstep3|cygwin32|mingw32)$/ ) {
+ # NeXT added but not tested. CaS
+
+ $T_STABBY = 1; # 1 iff .stab things (usually if a.out format)
+ $T_US = '_'; # _ if symbols have an underscore on the front
+ $T_PRE_APP = '^#'; # regexp that says what comes before APP/NO_APP
+ $T_CONST_LBL = '^LC(\d+):$';
+ $T_POST_LBL = ':';
+ $T_X86_PRE_LLBL_PAT = 'L';
+ $T_X86_PRE_LLBL = 'L';
+ $T_X86_BADJMP = '^\tjmp [^L\*]';
+
+ $T_MOVE_DIRVS = '^(\s*(\.(p2)?align\s.*|\.globl\s+\S+|\.text|\.data|\.stab[^n].*|\.type\s+.*|\.size\s+.*|\.lcomm.*)\n)';
+ $T_COPY_DIRVS = '\.(globl|stab|lcomm)';
+ $T_DOT_WORD = '\.(long|word|value|byte|space)';
+ $T_DOT_GLOBAL = '\.globl';
+ $T_HDR_literal = "\.text\n\t\.align 2\n";
+ $T_HDR_misc = "\.text\n\t\.align 2,0x90\n";
+ $T_HDR_data = "\.data\n\t\.align 2\n";
+ $T_HDR_rodata = "\.text\n\t\.align 2\n";
+ $T_HDR_closure = "\.data\n\t\.align 2\n";
+ $T_HDR_info = "\.text\n\t\.align 2\n"; # NB: requires padding
+ $T_HDR_entry = "\.text\n"; # no .align so we're right next to _info (arguably wrong...?)
+ $T_HDR_vector = "\.text\n\t\.align 2\n"; # NB: requires padding
+
+ #--------------------------------------------------------#
+ } elsif ( $TargetPlatform =~ /^i386-.*-(solaris2|linux|gnu|freebsd|netbsd|openbsd|kfreebsdgnu)$/ ) {
+
+ $T_STABBY = 0; # 1 iff .stab things (usually if a.out format)
+ $T_US = ''; # _ if symbols have an underscore on the front
+ $T_PRE_APP = # regexp that says what comes before APP/NO_APP
+ ($TargetPlatform =~ /-(linux|gnu|freebsd|netbsd|openbsd)$/) ? '#' : '/' ;
+ $T_CONST_LBL = '^\.LC(\d+):$'; # regexp for what such a lbl looks like
+ $T_POST_LBL = ':';
+ $T_X86_PRE_LLBL_PAT = '\.L';
+ $T_X86_PRE_LLBL = '.L';
+ $T_X86_BADJMP = '^\tjmp\s+[^\.\*]';
+
+ $T_MOVE_DIRVS = '^(\s*(\.(p2)?align\s.*|\.globl\s+\S+|\.text|\.data|\.section\s+.*|\.type\s+.*|\.size\s+\S+\s*,\s*\d+|\.ident.*|\.local.*)\n)';
+ $T_COPY_DIRVS = '^\s*\.(globl|type|size|local)';
+
+ $T_DOT_WORD = '\.(long|value|word|byte|zero)';
+ $T_DOT_GLOBAL = '\.globl';
+ $T_HDR_literal = "\.section\t\.rodata\n"; # or just use .text??? (WDP 95/11)
+ $T_HDR_misc = "\.text\n\t\.align 4\n";
+ $T_HDR_data = "\.data\n\t\.align 4\n";
+ $T_HDR_rodata = "\.section\t\.rodata\n\t\.align 4\n";
+ $T_HDR_closure = "\.data\n\t\.align 4\n";
+ $T_HDR_info = "\.text\n\t\.align 4\n";
+ $T_HDR_entry = "\.text\n"; # no .align so we're right next to _info (arguably wrong...?)
+ $T_HDR_vector = "\.text\n\t\.align 4\n"; # NB: requires padding
+
+ #--------------------------------------------------------#
+ } elsif ( $TargetPlatform =~ /^ia64-.*-linux$/ ) {
+
+ $T_STABBY = 0; # 1 iff .stab things (usually if a.out format)
+ $T_US = ''; # _ if symbols have an underscore on the front
+ $T_PRE_APP = '#';
+ $T_CONST_LBL = '^\.LC(\d+):$'; # regexp for what such a lbl looks like
+ $T_POST_LBL = ':';
+
+ $T_MOVE_DIRVS = '^(\s*\.(global|proc|pred\.safe_across_calls|text|data|section|subsection|align|size|type|ident)\s+.*\n)';
+ $T_COPY_DIRVS = '\.(global|proc)';
+
+ $T_DOT_WORD = '\.(long|value|byte|zero)';
+ $T_DOT_GLOBAL = '\.global';
+ $T_HDR_literal = "\.section\t\.rodata\n";
+ $T_HDR_misc = "\.text\n\t\.align 8\n";
+ $T_HDR_data = "\.data\n\t\.align 8\n";
+ $T_HDR_rodata = "\.section\t\.rodata\n\t\.align 8\n";
+ $T_HDR_closure = "\.data\n\t\.align 8\n";
+ $T_HDR_info = "\.text\n\t\.align 8\n";
+ $T_HDR_entry = "\.text\n\t\.align 16\n";
+ $T_HDR_vector = "\.text\n\t\.align 8\n";
+
+ #--------------------------------------------------------#
+ } elsif ( $TargetPlatform =~ /^x86_64-.*-(linux|openbsd)$/ ) {
+
+ $T_STABBY = 0; # 1 iff .stab things (usually if a.out format)
+ $T_US = ''; # _ if symbols have an underscore on the front
+ $T_PRE_APP = '#';
+ $T_CONST_LBL = '^\.LC(\d+):$'; # regexp for what such a lbl looks like
+ $T_POST_LBL = ':';
+
+ $T_MOVE_DIRVS = '^(\s*\.(globl|text|data|section|align|size|type|ident|local)\s+.*\n)';
+ $T_COPY_DIRVS = '\.(globl|type|size|local)';
+
+ $T_DOT_WORD = '\.(quad|long|value|byte|zero)';
+ $T_DOT_GLOBAL = '\.global';
+
+ $T_HDR_literal16 = "\.section\t\.rodata.cst16\n\t.align 16\n";
+ $T_HDR_literal = "\.section\t\.rodata\n";
+
+ $T_HDR_misc = "\.text\n\t\.align 8\n";
+ $T_HDR_data = "\.data\n\t\.align 8\n";
+ $T_HDR_rodata = "\.section\t\.rodata\n\t\.align 8\n";
+
+ # the assembler on x86_64/Linux refuses to generate code for
+ # .quad x - y
+ # where x is in the text section and y in the rodata section.
+ # It works if y is in the text section, though. This is probably
+ # going to cause difficulties for PIC, I imagine.
+ $T_HDR_relrodata= "\.text\n\t\.align 8\n";
+
+ $T_HDR_closure = "\.data\n\t\.align 8\n";
+ $T_HDR_info = "\.text\n\t\.align 8\n";
+ $T_HDR_entry = "\.text\n\t\.align 8\n";
+ $T_HDR_vector = "\.text\n\t\.align 8\n";
+
+ #--------------------------------------------------------#
+ } elsif ( $TargetPlatform =~ /^m68k-.*-sunos4/ ) {
+
+ $T_STABBY = 1; # 1 iff .stab things (usually if a.out format)
+ $T_US = '_'; # _ if symbols have an underscore on the front
+ $T_PRE_APP = '^# MAY NOT APPLY'; # regexp that says what comes before APP/NO_APP
+ $T_CONST_LBL = '^LC(\d+):$';
+ $T_POST_LBL = ':';
+
+ $T_MOVE_DIRVS = '^(\s*(\.align\s+\d+|\.proc\s+\d+|\.const|\.cstring|\.globl\s+\S+|\.text|\.data|\.even|\.stab[^n].*)\n)';
+ $T_COPY_DIRVS = '\.(globl|proc|stab)';
+
+ $T_DOT_WORD = '\.long';
+ $T_DOT_GLOBAL = '\.globl';
+ $T_HDR_literal = "\.text\n\t\.even\n";
+ $T_HDR_misc = "\.text\n\t\.even\n";
+ $T_HDR_data = "\.data\n\t\.even\n";
+ $T_HDR_rodata = "\.text\n\t\.even\n";
+ $T_HDR_closure = "\.data\n\t\.even\n";
+ $T_HDR_info = "\.text\n\t\.even\n";
+ $T_HDR_entry = "\.text\n\t\.even\n";
+ $T_HDR_vector = "\.text\n\t\.even\n";
+
+ #--------------------------------------------------------#
+ } elsif ( $TargetPlatform =~ /^mips-.*/ ) {
+
+ $T_STABBY = 0; # 1 iff .stab things (usually if a.out format)
+ $T_US = ''; # _ if symbols have an underscore on the front
+ $T_PRE_APP = '^\s*#'; # regexp that says what comes before APP/NO_APP
+ $T_CONST_LBL = '^\$LC(\d+):$'; # regexp for what such a lbl looks like
+ $T_POST_LBL = ':';
+
+ $T_MOVE_DIRVS = '^(\s*(\.align\s+\d+|\.(globl|ent)\s+\S+|\.text|\.r?data)\n)';
+ $T_COPY_DIRVS = '\.(globl|ent)';
+
+ $T_DOT_WORD = '\.word';
+ $T_DOT_GLOBAL = '^\t\.globl';
+ $T_HDR_literal = "\t\.rdata\n\t\.align 2\n";
+ $T_HDR_misc = "\t\.text\n\t\.align 2\n";
+ $T_HDR_data = "\t\.data\n\t\.align 2\n";
+ $T_HDR_rodata = "\t\.rdata\n\t\.align 2\n";
+ $T_HDR_closure = "\t\.data\n\t\.align 2\n";
+ $T_HDR_info = "\t\.text\n\t\.align 2\n";
+ $T_HDR_entry = "\t\.text\n\t\.align 2\n";
+ $T_HDR_vector = "\t\.text\n\t\.align 2\n";
+
+ #--------------------------------------------------------#
+ } elsif ( $TargetPlatform =~ /^powerpc-apple-darwin.*/ ) {
+ # Apple PowerPC Darwin/MacOS X.
+ $T_STABBY = 0; # 1 iff .stab things (usually if a.out format)
+ $T_US = '_'; # _ if symbols have an underscore on the front
+ $T_PRE_APP = 'DOESNT APPLY'; # regexp that says what comes before APP/NO_APP
+ $T_CONST_LBL = '^\LC\d+:'; # regexp for what such a lbl looks like
+ $T_POST_LBL = ':';
+
+ $T_MOVE_DIRVS = '^(\s*(\.align \d+|\.text|\.data|\.const_data|\.cstring|\.non_lazy_symbol_pointer|\.const|\.static_const|\.literal4|\.literal8|\.static_data|\.globl \S+|\.section .*|\.lcomm.*)\n)';
+ $T_COPY_DIRVS = '\.(globl|lcomm)';
+
+ $T_DOT_WORD = '\.(long|short|byte|fill|space)';
+ $T_DOT_GLOBAL = '\.globl';
+ $T_HDR_toc = "\.toc\n";
+ $T_HDR_literal = "\t\.const\n\t\.align 2\n";
+ $T_HDR_misc = "\t\.text\n\t\.align 2\n";
+ $T_HDR_data = "\t\.data\n\t\.align 2\n";
+ $T_HDR_rodata = "\t\.const\n\t\.align 2\n";
+ $T_HDR_relrodata= "\t\.const_data\n\t\.align 2\n";
+ $T_HDR_closure = "\t\.data\n\t\.align 2\n";
+ $T_HDR_info = "\t\.text\n\t\.align 2\n";
+ $T_HDR_entry = "\t\.text\n\t\.align 2\n";
+ $T_HDR_vector = "\t\.text\n\t\.align 2\n";
+
+ #--------------------------------------------------------#
+ } elsif ( $TargetPlatform =~ /^i386-apple-darwin.*/ ) {
+ # Apple PowerPC Darwin/MacOS X.
+ $T_STABBY = 0; # 1 iff .stab things (usually if a.out format)
+ $T_US = '_'; # _ if symbols have an underscore on the front
+ $T_PRE_APP = 'DOESNT APPLY'; # regexp that says what comes before APP/NO_APP
+ $T_CONST_LBL = '^\LC\d+:'; # regexp for what such a lbl looks like
+ $T_POST_LBL = ':';
+ $T_X86_PRE_LLBL_PAT = 'L';
+ $T_X86_PRE_LLBL = 'L';
+ $T_X86_BADJMP = '^\tjmp [^L\*]';
+
+ $T_MOVE_DIRVS = '^(\s*(\.align \d+|\.text|\.data|\.const_data|\.cstring|\.non_lazy_symbol_pointer|\.const|\.static_const|\.literal4|\.literal8|\.static_data|\.globl \S+|\.section .*|\.lcomm.*)\n)';
+ $T_COPY_DIRVS = '\.(globl|lcomm)';
+
+ $T_DOT_WORD = '\.(long|short|byte|fill|space)';
+ $T_DOT_GLOBAL = '\.globl';
+ $T_HDR_toc = "\.toc\n";
+ $T_HDR_literal16= "\t\.literal8\n\t\.align 4\n";
+ $T_HDR_literal = "\t\.const\n\t\.align 4\n";
+ $T_HDR_misc = "\t\.text\n\t\.align 2\n";
+ $T_HDR_data = "\t\.data\n\t\.align 2\n";
+ $T_HDR_rodata = "\t\.const\n\t\.align 2\n";
+ $T_HDR_relrodata= "\t\.const_data\n\t\.align 2\n";
+ $T_HDR_closure = "\t\.data\n\t\.align 2\n";
+ $T_HDR_info = "\t\.text\n\t\.align 2\n";
+ $T_HDR_entry = "\t\.text\n\t\.align 2\n";
+ $T_HDR_vector = "\t\.text\n\t\.align 2\n";
+
+ #--------------------------------------------------------#
+ } elsif ( $TargetPlatform =~ /^powerpc-.*-linux/ ) {
+ # PowerPC Linux
+ $T_STABBY = 0; # 1 iff .stab things (usually if a.out format)
+ $T_US = ''; # _ if symbols have an underscore on the front
+ $T_PRE_APP = '^#'; # regexp that says what comes before APP/NO_APP
+ $T_CONST_LBL = '^\.LC\d+:'; # regexp for what such a lbl looks like
+ $T_POST_LBL = ':';
+
+ $T_MOVE_DIRVS = '^(\s*(\.(p2)?align\s+\d+(,\s*0x90)?|\.globl\s+\S+|\.text|\.data|\.section\s+.*|\.type\s+.*|\.size\s+\S+\s*,\s*\d+|\.ident.*|\.local.*)\n)';
+ $T_COPY_DIRVS = '^\s*\.(globl|type|size|local)';
+
+ $T_DOT_WORD = '\.(long|short|byte|fill|space)';
+ $T_DOT_GLOBAL = '\.globl';
+ $T_HDR_toc = "\.toc\n";
+ $T_HDR_literal = "\t\.section\t.rodata\n\t\.align 2\n";
+ $T_HDR_misc = "\t\.text\n\t\.align 2\n";
+ $T_HDR_data = "\t\.data\n\t\.align 2\n";
+ $T_HDR_rodata = "\t\.section\t.rodata\n\t\.align 2\n";
+ $T_HDR_closure = "\t\.data\n\t\.align 2\n";
+ $T_HDR_info = "\t\.text\n\t\.align 2\n";
+ $T_HDR_entry = "\t\.text\n\t\.align 2\n";
+ $T_HDR_vector = "\t\.text\n\t\.align 2\n";
+
+ #--------------------------------------------------------#
+ } elsif ( $TargetPlatform =~ /^powerpc64-.*-linux/ ) {
+ # PowerPC 64 Linux
+ $T_STABBY = 0; # 1 iff .stab things (usually if a.out format)
+ $T_US = '\.'; # _ if symbols have an underscore on the front
+ $T_PRE_APP = '^#'; # regexp that says what comes before APP/NO_APP
+ $T_CONST_LBL = '^\.LC\d+:'; # regexp for what such a lbl looks like
+ $T_POST_LBL = ':';
+
+ $T_MOVE_DIRVS = '^(\s*(\.(p2)?align\s+\d+(,\s*0x90)?|\.globl\s+\S+|\.text|\.data|\.section\s+.*|\.type\s+.*|\.size\s+\S+\s*,\s*\d+|\.ident.*|\.local.*)\n)';
+ $T_COPY_DIRVS = '^\s*\.(globl|type|size|local)';
+
+ $T_DOT_WORD = '\.(long|short|byte|fill|space)';
+ $T_DOT_GLOBAL = '\.globl';
+ $T_HDR_toc = "\.toc\n";
+ $T_HDR_literal = "\t\.section\t\".toc\",\"aw\"\n";
+ $T_HDR_misc = "\t\.text\n\t\.align 2\n";
+ $T_HDR_data = "\t\.data\n\t\.align 2\n";
+ $T_HDR_rodata = "\t\.section\t.rodata\n\t\.align 2\n";
+ $T_HDR_closure = "\t\.data\n\t\.align 2\n";
+ $T_HDR_info = "\t\.text\n\t\.align 2\n";
+ $T_HDR_entry = "\t\.text\n\t\.align 2\n";
+ $T_HDR_vector = "\t\.text\n\t\.align 2\n";
+
+ #--------------------------------------------------------#
+ } elsif ( $TargetPlatform =~ /^sparc-.*-(solaris2|openbsd)/ ) {
+
+ $T_STABBY = 0; # 1 iff .stab things (usually if a.out format)
+ $T_US = ''; # _ if symbols have an underscore on the front
+ $T_PRE_APP = 'DOES NOT SEEM TO APPLY'; # regexp that says what comes before APP/NO_APP
+ $T_CONST_LBL = '^\.LLC(\d+):$'; # regexp for what such a lbl looks like
+ $T_POST_LBL = ':';
+
+ $T_MOVE_DIRVS = '^((\s+\.align\s+\d+|\s+\.proc\s+\d+|\s+\.global\s+\S+|\s+\.local\s+\S+|\.text|\.data|\.stab.*|\s*\.section.*|\s+\.type.*|\s+\.size.*)\n)';
+ $T_COPY_DIRVS = '\.(global|local|proc|stab)';
+
+ $T_DOT_WORD = '\.(long|word|byte|half|skip|uahalf|uaword)';
+ $T_DOT_GLOBAL = '^\t\.global';
+ $T_HDR_literal = "\.text\n\t\.align 8\n";
+ $T_HDR_misc = "\.text\n\t\.align 4\n";
+ $T_HDR_data = "\.data\n\t\.align 8\n";
+ $T_HDR_rodata = "\.text\n\t\.align 4\n";
+ $T_HDR_closure = "\.data\n\t\.align 4\n";
+ $T_HDR_info = "\.text\n\t\.align 4\n";
+ $T_HDR_entry = "\.text\n\t\.align 4\n";
+ $T_HDR_vector = "\.text\n\t\.align 4\n";
+
+ #--------------------------------------------------------#
+ } elsif ( $TargetPlatform =~ /^sparc-.*-sunos4/ ) {
+
+ $T_STABBY = 1; # 1 iff .stab things (usually if a.out format)
+ $T_US = '_'; # _ if symbols have an underscore on the front
+ $T_PRE_APP = '^# DOES NOT SEEM TO APPLY'; # regexp that says what comes before APP/NO_APP
+ $T_CONST_LBL = '^LC(\d+):$';
+ $T_POST_LBL = ':';
+
+ $T_MOVE_DIRVS = '^((\s+\.align\s+\d+|\s+\.proc\s+\d+|\s+\.global\s+\S+|\.text|\.data|\.stab.*)\n)';
+ $T_COPY_DIRVS = '\.(global|proc|stab)';
+
+ $T_DOT_WORD = '\.word';
+ $T_DOT_GLOBAL = '^\t\.global';
+ $T_HDR_literal = "\.text\n\t\.align 8\n";
+ $T_HDR_misc = "\.text\n\t\.align 4\n";
+ $T_HDR_data = "\.data\n\t\.align 8\n";
+ $T_HDR_rodata = "\.text\n\t\.align 4\n";
+ $T_HDR_closure = "\.data\n\t\.align 4\n";
+ $T_HDR_info = "\.text\n\t\.align 4\n";
+ $T_HDR_entry = "\.text\n\t\.align 4\n";
+ $T_HDR_vector = "\.text\n\t\.align 4\n";
+
+ #--------------------------------------------------------#
+ } elsif ( $TargetPlatform =~ /^sparc-.*-linux/ ) {
+ $T_STABBY = 0; # 1 iff .stab things (usually if a.out format)
+ $T_US = ''; # _ if symbols have an underscore on the front
+ $T_PRE_APP = '#'; # regexp that says what comes before APP/NO_APP
+ # Probably doesn't apply anyway
+ $T_CONST_LBL = '^\.LLC(\d+):$'; # regexp for what such a lbl looks like
+ $T_POST_LBL = ':';
+
+ $T_MOVE_DIRVS = '^((\s+\.align\s+\d+|\s+\.proc\s+\d+|\s+\.global\s+\S+|\.text|\.data|\.seg|\.stab.*|\s+?\.section.*|\s+\.type.*|\s+\.size.*)\n)';
+ $T_COPY_DIRVS = '\.(global|globl|proc|stab)';
+
+ $T_DOT_WORD = '\.(long|word|nword|xword|byte|half|short|skip|uahalf|uaword)';
+ $T_DOT_GLOBAL = '^\t\.global';
+ $T_HDR_literal = "\.text\n\t\.align 8\n";
+ $T_HDR_misc = "\.text\n\t\.align 4\n";
+ $T_HDR_data = "\.data\n\t\.align 8\n";
+ $T_HDR_rodata = "\.text\n\t\.align 4\n";
+ $T_HDR_closure = "\.data\n\t\.align 4\n";
+ $T_HDR_info = "\.text\n\t\.align 4\n";
+ $T_HDR_entry = "\.text\n\t\.align 4\n";
+ $T_HDR_vector = "\.text\n\t\.align 4\n";
+
+ #--------------------------------------------------------#
+ } else {
+ print STDERR "$Pgm: don't know how to mangle assembly language for: $TargetPlatform\n";
+ exit 1;
+ }
+
+ if($T_HDR_relrodata eq "") {
+ # default values:
+ # relrodata defaults to rodata.
+ $T_HDR_relrodata = $T_HDR_rodata;
+ }
+
+if ( 0 ) {
+print STDERR "T_STABBY: $T_STABBY\n";
+print STDERR "T_US: $T_US\n";
+print STDERR "T_PRE_APP: $T_PRE_APP\n";
+print STDERR "T_CONST_LBL: $T_CONST_LBL\n";
+print STDERR "T_POST_LBL: $T_POST_LBL\n";
+if ( $TargetPlatform =~ /^i386-/ ) {
+ print STDERR "T_X86_PRE_LLBL_PAT: $T_X86_PRE_LLBL_PAT\n";
+ print STDERR "T_X86_PRE_LLBL: $T_X86_PRE_LLBL\n";
+ print STDERR "T_X86_BADJMP: $T_X86_BADJMP\n";
+}
+print STDERR "T_MOVE_DIRVS: $T_MOVE_DIRVS\n";
+print STDERR "T_COPY_DIRVS: $T_COPY_DIRVS\n";
+print STDERR "T_DOT_WORD: $T_DOT_WORD\n";
+print STDERR "T_HDR_literal: $T_HDR_literal\n";
+print STDERR "T_HDR_misc: $T_HDR_misc\n";
+print STDERR "T_HDR_data: $T_HDR_data\n";
+print STDERR "T_HDR_rodata: $T_HDR_rodata\n";
+print STDERR "T_HDR_closure: $T_HDR_closure\n";
+print STDERR "T_HDR_info: $T_HDR_info\n";
+print STDERR "T_HDR_entry: $T_HDR_entry\n";
+print STDERR "T_HDR_vector: $T_HDR_vector\n";
+}
+
+}
+\end{code}
+
+%************************************************************************
+%* *
+\subsection{Mangle away}
+%* *
+%************************************************************************
+
+\begin{code}
+sub mangle_asm {
+ local($in_asmf, $out_asmf) = @_;
+
+ # multi-line regexp matching:
+ local($*) = 1;
+ local($i, $c);
+
+
+ &init_TARGET_STUFF();
+ &init_FUNNY_THINGS();
+
+ open(INASM, "< $in_asmf")
+ || &tidy_up_and_die(1,"$Pgm: failed to open `$in_asmf' (to read)\n");
+ open(OUTASM,"> $out_asmf")
+ || &tidy_up_and_die(1,"$Pgm: failed to open `$out_asmf' (to write)\n");
+
+ # read whole file, divide into "chunks":
+ # record some info about what we've found...
+
+ @chk = (); # contents of the chunk
+ $numchks = 0; # number of them
+ @chkcat = (); # what category of thing in each chunk
+ @chksymb = (); # what symbol(base) is defined in this chunk
+ %entrychk = (); # ditto, its entry code
+ %closurechk = (); # ditto, the (static) closure
+ %srtchk = (); # ditto, its SRT (for top-level things)
+ %infochk = (); # given a symbol base, say what chunk its info tbl is in
+ %vectorchk = (); # ditto, return vector table
+ $EXTERN_DECLS = ''; # .globl <foo> .text (MIPS only)
+
+ $i = 0; $chkcat[0] = 'misc'; $chk[0] = '';
+
+ while (<INASM>) {
+ tr/\r//d if $TargetPlatform =~ /-mingw32$/; # In case Perl doesn't convert line endings
+ next if $T_STABBY && /^\.stab.*${T_US}__stg_split_marker/o;
+ next if $T_STABBY && /^\.stab.*ghc.*c_ID/;
+ next if /^\t\.def.*endef$/;
+ next if /${T_PRE_APP}(NO_)?APP/o;
+ next if /^;/ && $TargetPlatform =~ /^hppa/;
+
+ next if /(^$|^\t\.file\t|^ # )/ && $TargetPlatform =~ /^(mips|ia64)-/;
+
+ if ( $TargetPlatform =~ /^mips-/
+ && /^\t\.(globl\S+\.text|comm\t)/ ) {
+ $EXTERN_DECLS .= $_ unless /(__DISCARD__|\b(PK_|ASSIGN_)(FLT|DBL)\b)/;
+ # Treat .comm variables as data. These show up in two (known) places:
+ #
+ # - the module_registered variable used in the __stginit fragment.
+ # even though these are declared static and initialised, gcc 3.3
+ # likes to make them .comm, presumably to save space in the
+ # object file.
+ #
+ # - global variables used to pass arguments from C to STG in
+ # a foreign export. (is this still true? --SDM)
+ #
+ } elsif ( /^\t\.comm.*$/ ) {
+ $chk[++$i] = $_;
+ $chkcat[$i] = 'data';
+ $chksymb[$i] = '';
+
+ # Labels ending "_str": these are literal strings.
+ } elsif ( /^${T_US}([A-Za-z0-9_]+)_str${T_POST_LBL}$/ ) {
+ $chk[++$i] = $_;
+ $chkcat[$i] = 'rodata';
+ $chksymb[$i] = '';
+ } elsif ( $TargetPlatform =~ /-darwin/
+ && (/^\s*\.subsections_via_symbols/
+ ||/^\s*\.no_dead_strip.*/)) {
+ # Don't allow Apple's linker to do any dead-stripping of symbols
+ # in this file, because it will mess up info-tables in mangled
+ # code.
+ # The .no_dead_strip directives are actually put there by
+ # the gcc3 "used" attribute on entry points.
+
+ } elsif ( $TargetPlatform =~ /^.*-apple-darwin.*/ && (
+ /^\s*\.picsymbol_stub/
+ || /^\s*\.section __TEXT,__picsymbol_stub\d,.*/
+ || /^\s*\.section __TEXT,__picsymbolstub\d,.*/
+ || /^\s*\.symbol_stub/
+ || /^\s*\.section __TEXT,__symbol_stub\d,.*/
+ || /^\s*\.section __TEXT,__symbolstub\d,.*/
+ || /^\s*\.lazy_symbol_pointer/
+ || /^\s*\.non_lazy_symbol_pointer/
+ || /^\s*\.section __IMPORT.*/))
+ {
+ $chk[++$i] = $_;
+ $chkcat[$i] = 'dyld';
+ $chksymb[$i] = '';
+ $dyld_section = $_;
+
+ } elsif ( $TargetPlatform =~ /^.*-apple-darwin.*/ && $chkcat[$i] eq 'dyld' && /^\s*\.data/)
+ { # non_lazy_symbol_ptrs that point to local symbols
+ $chk[++$i] = $_;
+ $chkcat[$i] = 'dyld';
+ $chksymb[$i] = '';
+ $dyld_section = $_;
+ } elsif ( $TargetPlatform =~ /^.*-apple-darwin.*/ && $chkcat[$i] eq 'dyld' && /^\s*\.align/)
+ { # non_lazy_symbol_ptrs that point to local symbols
+ $dyld_section .= $_;
+ } elsif ( $TargetPlatform =~ /^.*-apple-darwin.*/ && $chkcat[$i] eq 'dyld' && /^L_.*:$/)
+ { # non_lazy_symbol_ptrs that point to local symbols
+ $chk[++$i] = $dyld_section . $_;
+ $chkcat[$i] = 'dyld';
+ $chksymb[$i] = '';
+
+ } elsif ( /^\s+/ ) { # most common case first -- a simple line!
+ # duplicated from the bottom
+
+ $chk[$i] .= $_;
+
+ } elsif ( /\.\.ng:$/ && $TargetPlatform =~ /^alpha-/ ) {
+ # Alphas: Local labels not to be confused with new chunks
+ $chk[$i] .= $_;
+ # NB: all the rest start with a non-space
+
+ } elsif ( $TargetPlatform =~ /^mips-/
+ && /^\d+:/ ) { # a funny-looking very-local label
+ $chk[$i] .= $_;
+
+ } elsif ( /$T_CONST_LBL/o ) {
+ $chk[++$i] = $_;
+ $chkcat[$i] = 'literal';
+ $chksymb[$i] = $1;
+
+ } elsif ( /^${T_US}__stg_split_marker(\d*)${T_POST_LBL}$/o ) {
+ $chk[++$i] = $_;
+ $chkcat[$i] = 'splitmarker';
+ $chksymb[$i] = $1;
+
+ } elsif ( /^${T_US}([A-Za-z0-9_]+)_info${T_POST_LBL}$/o ) {
+ $symb = $1;
+ $chk[++$i] = $_;
+ $chkcat[$i] = 'infotbl';
+ $chksymb[$i] = $symb;
+
+ die "Info table already? $symb; $i\n" if defined($infochk{$symb});
+
+ $infochk{$symb} = $i;
+
+ } elsif ( /^${T_US}([A-Za-z0-9_]+)_(entry|ret)${T_POST_LBL}$/o ) {
+ $chk[++$i] = $_;
+ $chkcat[$i] = 'entry';
+ $chksymb[$i] = $1;
+
+ $entrychk{$1} = $i;
+
+ } elsif ( /^${T_US}([A-Za-z0-9_]+)_closure${T_POST_LBL}$/o ) {
+ $chk[++$i] = $_;
+ $chkcat[$i] = 'closure';
+ $chksymb[$i] = $1;
+
+ $closurechk{$1} = $i;
+
+ } elsif ( /^${T_US}([A-Za-z0-9_]+)_srt${T_POST_LBL}$/o ) {
+ $chk[++$i] = $_;
+ $chkcat[$i] = 'srt';
+ $chksymb[$i] = $1;
+
+ $srtchk{$1} = $i;
+
+ } elsif ( /^${T_US}([A-Za-z0-9_]+)_ct${T_POST_LBL}$/o ) {
+ $chk[++$i] = $_;
+ $chkcat[$i] = 'data';
+ $chksymb[$i] = '';
+
+ } elsif ( /^${T_US}(stg_ap_stack_entries|stg_stack_save_entries|stg_arg_bitmaps)${T_POST_LBL}$/o ) {
+ $chk[++$i] = $_;
+ $chkcat[$i] = 'data';
+ $chksymb[$i] = '';
+
+ } elsif ( /^(${T_US}__gnu_compiled_c|gcc2_compiled\.)${T_POST_LBL}/o ) {
+ ; # toss it
+
+ } elsif ( /^${T_US}[A-Za-z0-9_]+\.\d+${T_POST_LBL}$/o
+ || /^${T_US}.*_CAT${T_POST_LBL}$/o # PROF: _entryname_CAT
+ || /^${T_US}.*_done${T_POST_LBL}$/o # PROF: _module_done
+ || /^${T_US}_module_registered${T_POST_LBL}$/o # PROF: _module_registered
+ ) {
+ $chk[++$i] = $_;
+ $chkcat[$i] = 'data';
+ $chksymb[$i] = '';
+
+ } elsif ( /^([A-Za-z0-9_]+)\s+\.comm/ && $TargetPlatform =~ /^hppa/ ) {
+ $chk[++$i] = $_;
+ $chkcat[$i] = 'bss';
+ $chksymb[$i] = '';
+
+ } elsif ( /^${T_US}([A-Za-z0-9_]+)_cc(s)?${T_POST_LBL}$/o ) {
+ # all CC_ symbols go in the data section...
+ $chk[++$i] = $_;
+ $chkcat[$i] = 'data';
+ $chksymb[$i] = '';
+
+ } elsif ( /^${T_US}([A-Za-z0-9_]+)_(alt|dflt)${T_POST_LBL}$/o ) {
+ $chk[++$i] = $_;
+ $chkcat[$i] = 'misc';
+ $chksymb[$i] = '';
+ } elsif ( /^${T_US}([A-Za-z0-9_]+)_vtbl${T_POST_LBL}$/o ) {
+ $chk[++$i] = $_;
+ $chkcat[$i] = 'vector';
+ $chksymb[$i] = $1;
+
+ $vectorchk{$1} = $i;
+
+ } elsif ( $TargetPlatform =~ /^i386-.*-solaris2/
+ && /^[A-Za-z0-9][A-Za-z0-9_]*:/ ) {
+ # Some Solaris system headers contain function definitions (as
+ # opposed to mere prototypes), which end up in the .hc file when
+ # a Haskell module foreign imports the corresponding system
+ # functions (most notably stat()). We put them into the text
+ # segment. Note that this currently does not extend to function
+ # names starting with an underscore.
+ # - chak 7/2001
+ $chk[++$i] = $_;
+ $chkcat[$i] = 'misc';
+ $chksymb[$i] = $1;
+
+ } elsif ( $TargetPlatform =~ /^i386-apple-darwin/ && /^(___i686\.get_pc_thunk\.[abcd]x):/o) {
+ # To handle PIC on Darwin/x86, we need to appropriately pass through
+ # the get_pc_thunk functions. The need to be put into a special section
+ # marked as coalesced (otherwise the .weak_definition doesn't work
+ # on Darwin).
+ $chk[++$i] = $_;
+ $chkcat[$i] = 'get_pc_thunk';
+ $chksymb[$i] = $1;
+
+ } elsif ( /^${T_US}[A-Za-z0-9_]/o
+ && ( $TargetPlatform !~ /^hppa/ # need to avoid local labels in this case
+ || ! /^L\$\d+$/ )
+ && ( $TargetPlatform !~ /^powerpc64/ # we need to avoid local labels in this case
+ || ! /^\.L\d+:$/ ) ) {
+ local($thing);
+ chop($thing = $_);
+ $thing =~ s/:$//;
+ $chk[++$i] = $_;
+ $chksymb[$i] = '';
+ if (
+ /^${T_US}stg_.*${T_POST_LBL}$/o # RTS internals
+ || /^${T_US}__stg_.*${T_POST_LBL}$/o # more RTS internals
+ || /^${T_US}__fexp_.*${T_POST_LBL}$/o # foreign export
+ || /^${T_US}.*_slow${T_POST_LBL}$/o # slow entry
+ || /^${T_US}__stginit.*${T_POST_LBL}$/o # __stginit<module>
+ || /^${T_US}.*_btm${T_POST_LBL}$/o # large bitmaps
+ || /^${T_US}.*_fast${T_POST_LBL}$/o # primops
+ || /^_uname:/o # x86/Solaris2
+ )
+ {
+ $chkcat[$i] = 'misc';
+ } elsif (
+ /^${T_US}.*_srtd${T_POST_LBL}$/o # large bitmaps
+ || /^${T_US}.*_closure_tbl${T_POST_LBL}$/o # closure tables
+ )
+ {
+ $chkcat[$i] = 'relrodata';
+ } else
+ {
+ print STDERR "Warning: retaining unknown function \`$thing' in output from C compiler\n";
+ $chkcat[$i] = 'unknown';
+ }
+
+ } elsif ( $TargetPlatform =~ /^powerpc-.*-linux/ && /^\.LCTOC1 = /o ) {
+ # PowerPC Linux's large-model PIC (-fPIC) generates a gobal offset
+ # table "by hand". Be sure to copy it over.
+ # Note that this label and all entries in the table should actually
+ # go into the .got2 section, but it isn't easy to distinguish them
+ # from other constant literals (.LC\d+), so we just put everything
+ # in .rodata.
+ $chk[++$i] = $_;
+ $chkcat[$i] = 'literal';
+ $chksymb[$i] = 'LCTOC1';
+ } else { # simple line (duplicated at the top)
+
+ $chk[$i] .= $_;
+ }
+ }
+ $numchks = $#chk + 1;
+
+ # open CHUNKS, ">/tmp/chunks1" or die "Cannot open /tmp/chunks1: $!\n";
+ # for (my $i = 0; $i < @chk; ++$i) { print CHUNKS "======= $i =======\n", $chk[$i] }
+ # close CHUNKS;
+
+ # the division into chunks is imperfect;
+ # we throw some things over the fence into the next
+ # chunk.
+ #
+ # also, there are things we would like to know
+ # about the whole module before we start spitting
+ # output.
+
+ local($FIRST_MANGLABLE) = ($TargetPlatform =~ /^(alpha-|hppa|mips-)/) ? 1 : 0;
+ local($FIRST_TOSSABLE ) = ($TargetPlatform =~ /^(hppa|mips-)/) ? 1 : 0;
+
+# print STDERR "first chunk to mangle: $FIRST_MANGLABLE\n";
+
+ # Alphas: NB: we start meddling at chunk 1, not chunk 0
+ # The first ".rdata" is quite magical; as of GCC 2.7.x, it
+ # spits a ".quad 0" in after the very first ".rdata"; we
+ # detect this special case (tossing the ".quad 0")!
+ local($magic_rdata_seen) = 0;
+
+ # HPPAs, MIPSen: also start medding at chunk 1
+
+ for ($i = $FIRST_TOSSABLE; $i < $numchks; $i++) {
+ $c = $chk[$i]; # convenience copy
+
+# print STDERR "\nCHK $i (BEFORE) (",$chkcat[$i],"):\n", $c;
+
+ # toss all prologue stuff; HPPA is pretty weird
+ # (see elsewhere)
+ $c = &hppa_mash_prologue($c) if $TargetPlatform =~ /^hppa-/;
+
+ # be slightly paranoid to make sure there's
+ # nothing surprising in there
+ if ( $c =~ /--- BEGIN ---/ ) {
+ if (($p, $r) = split(/--- BEGIN ---/, $c)) {
+
+ # remove junk whitespace around the split point
+ $p =~ s/\t+$//;
+ $r =~ s/^\s*\n//;
+
+ if ($TargetPlatform =~ /^i386-/) {
+ if ($p =~ /^\tsubl\s+\$(\d+),\s*\%esp\n/) {
+ if ($1 >= 8192) {
+ die "Error: reserved stack space exceeded!\n Possible workarounds: compile with -fasm, or try another version of gcc.\n"
+ }
+ }
+
+ # gcc 3.4.3 puts this kind of stuff in the prologue, eg.
+ # when compiling PrimOps.cmm with -optc-O2:
+ # xorl %ecx, %ecx
+ # xorl %edx, %edx
+ # movl %ecx, 16(%esp)
+ # movl %edx, 20(%esp)
+ # but then the code of the function doesn't assume
+ # anything about the contnets of these stack locations.
+ # I think it's to do with the use of inline functions for
+ # PK_Word64() and friends, where gcc is initialising the
+ # contents of the struct to zero, and failing to optimise
+ # away the initialisation. Let's live dangerously and
+ # discard these initalisations.
+
+ $p =~ s/^\tpushl\s+\%e(di|si|bx)\n//g;
+ $p =~ s/^\txorl\s+\%e(ax|cx|dx),\s*\%e(ax|cx|dx)\n//g;
+ $p =~ s/^\tmovl\s+\%e(ax|cx|dx|si|di),\s*\d*\(\%esp\)\n//g;
+ $p =~ s/^\tmovl\s+\$\d+,\s*\d*\(\%esp\)\n//g;
+ $p =~ s/^\tsubl\s+\$\d+,\s*\%esp\n//;
+ $p =~ s/^\tmovl\s+\$\d+,\s*\%eax\n\tcall\s+__alloca\n// if ($TargetPlatform =~ /^.*-(cygwin32|mingw32)/);
+
+ if ($TargetPlatform =~ /^i386-apple-darwin/) {
+ $pcrel_label = $p;
+ $pcrel_label =~ s/(.|\n)*^(\"?L\d+\$pb\"?):\n(.|\n)*/$2/ or $pcrel_label = "";
+ $pcrel_reg = $p;
+ $pcrel_reg =~ s/(.|\n)*.*___i686\.get_pc_thunk\.([abcd]x)\n(.|\n)*/$2/ or $pcrel_reg = "";
+ $p =~ s/^\s+call\s+___i686\.get_pc_thunk\..x//;
+ $p =~ s/^\"?L\d+\$pb\"?:\n//;
+
+ if ($pcrel_reg eq "bx") {
+ # Bad gcc. Goes and uses %ebx, our BaseReg, for PIC. Bad gcc.
+ die "Darwin/x86: -fPIC -via-C doesn't work yet, use -fasm. Aborting."
+ }
+ }
+
+ } elsif ($TargetPlatform =~ /^x86_64-/) {
+ $p =~ s/^\tpushq\s+\%r(bx|bp|12|13|14)\n//g;
+ $p =~ s/^\tmovq\s+\%r(bx|bp|12|13|14),\s*\d*\(\%rsp\)\n//g;
+ $p =~ s/^\tsubq\s+\$\d+,\s*\%rsp\n//;
+
+ } elsif ($TargetPlatform =~ /^ia64-/) {
+ $p =~ s/^\t\.prologue .*\n//;
+ $p =~ s/^\t\.save ar\.pfs, r\d+\n\talloc r\d+ = ar\.pfs, 0, 3[12], \d+, 0\n//;
+ $p =~ s/^\t\.fframe \d+\n\tadds r12 = -\d+, r12\n//;
+ $p =~ s/^\t\.save rp, r\d+\n\tmov r\d+ = b0\n//;
+ $p =~ s/^\t\.(mii|mmi)\n//g; # bundling is no longer sensible
+ $p =~ s/^\t;;\n//g; # discard stops
+ $p =~ s/^\t\/\/.*\n//g; # gcc inserts timings in // comments
+
+ # GCC 3.3 saves r1 in the prologue, move this to the body
+ if ($p =~ /^\tmov r\d+ = r1\n/) {
+ $p = $` . $';
+ $r = $& . $r;
+ }
+ } elsif ($TargetPlatform =~ /^m68k-/) {
+ $p =~ s/^\tlink a6,#-?\d.*\n//;
+ $p =~ s/^\tpea a6@\n\tmovel sp,a6\n//;
+ # The above showed up in the asm code,
+ # so I added it here.
+ # I hope it's correct.
+ # CaS
+ $p =~ s/^\tmovel d2,sp\@-\n//;
+ $p =~ s/^\tmovel d5,sp\@-\n//; # SMmark.* only?
+ $p =~ s/^\tmoveml \#0x[0-9a-f]+,sp\@-\n//; # SMmark.* only?
+ } elsif ($TargetPlatform =~ /^mips-/) {
+ # the .frame/.mask/.fmask that we use is the same
+ # as that produced by GCC for miniInterpret; this
+ # gives GDB some chance of figuring out what happened
+ $FRAME = "\t.frame\t\$sp,2168,\$31\n\t.mask\t0x90000000,-4\n\t.fmask\t0x00000000,0\n";
+ $p =~ s/^\t\.(frame).*\n/__FRAME__/g;
+ $p =~ s/^\t\.(mask|fmask).*\n//g;
+ $p =~ s/^\t\.cprestore.*\n/\t\.cprestore 416\n/; # 16 + 100 4-byte args
+ $p =~ s/^\tsubu\t\$sp,\$sp,\d+\n//;
+ $p =~ s/^\tsw\t\$31,\d+\(\$sp\)\n//;
+ $p =~ s/^\tsw\t\$fp,\d+\(\$sp\)\n//;
+ $p =~ s/^\tsw\t\$28,\d+\(\$sp\)\n//;
+ $p =~ s/__FRAME__/$FRAME/;
+ } elsif ($TargetPlatform =~ /^powerpc-apple-darwin.*/) {
+ $pcrel_label = $p;
+ $pcrel_label =~ s/(.|\n)*^(\"?L\d+\$pb\"?):\n(.|\n)*/$2/ or $pcrel_label = "";
+
+ $p =~ s/^\tmflr r0\n//;
+ $p =~ s/^\tbl saveFP # f\d+\n//;
+ $p =~ s/^\tbl saveFP ; save f\d+-f\d+\n//;
+ $p =~ s/^\"?L\d+\$pb\"?:\n//;
+ $p =~ s/^\tstmw r\d+,-\d+\(r1\)\n//;
+ $p =~ s/^\tstfd f\d+,-\d+\(r1\)\n//g;
+ $p =~ s/^\tstw r0,\d+\(r1\)\n//g;
+ $p =~ s/^\tstwu r1,-\d+\(r1\)\n//;
+ $p =~ s/^\tstw r\d+,-\d+\(r1\)\n//g;
+ $p =~ s/^\tbcl 20,31,L\d+\$pb\n//;
+ $p =~ s/^L\d+\$pb:\n//;
+ $p =~ s/^\tmflr r31\n//;
+
+ # This is bad: GCC 3 seems to zero-fill some local variables in the prologue
+ # under some circumstances, only when generating position dependent code.
+ # I have no idea why, and I don't think it is necessary, so let's toss it.
+ $p =~ s/^\tli r\d+,0\n//g;
+ $p =~ s/^\tstw r\d+,\d+\(r1\)\n//g;
+ } elsif ($TargetPlatform =~ /^powerpc-.*-linux/) {
+ $p =~ s/^\tmflr 0\n//;
+ $p =~ s/^\tstmw \d+,\d+\(1\)\n//;
+ $p =~ s/^\tstfd \d+,\d+\(1\)\n//g;
+ $p =~ s/^\tstw r0,8\(1\)\n//;
+ $p =~ s/^\tstwu 1,-\d+\(1\)\n//;
+ $p =~ s/^\tstw \d+,\d+\(1\)\n//g;
+
+ # GCC's "large-model" PIC (-fPIC)
+ $pcrel_label = $p;
+ $pcrel_label =~ s/(.|\n)*^.LCF(\d+):\n(.|\n)*/$2/ or $pcrel_label = "";
+
+ $p =~ s/^\tbcl 20,31,.LCF\d+\n//;
+ $p =~ s/^.LCF\d+:\n//;
+ $p =~ s/^\tmflr 30\n//;
+ $p =~ s/^\tlwz 0,\.LCL\d+-\.LCF\d+\(30\)\n//;
+ $p =~ s/^\tadd 30,0,30\n//;
+
+ # This is bad: GCC 3 seems to zero-fill some local variables in the prologue
+ # under some circumstances, only when generating position dependent code.
+ # I have no idea why, and I don't think it is necessary, so let's toss it.
+ $p =~ s/^\tli \d+,0\n//g;
+ $p =~ s/^\tstw \d+,\d+\(1\)\n//g;
+ } elsif ($TargetPlatform =~ /^powerpc64-.*-linux/) {
+ $p =~ s/^\tmr 31,1\n//;
+ $p =~ s/^\tmflr 0\n//;
+ $p =~ s/^\tstmw \d+,\d+\(1\)\n//;
+ $p =~ s/^\tstfd \d+,-?\d+\(1\)\n//g;
+ $p =~ s/^\tstd r0,8\(1\)\n//;
+ $p =~ s/^\tstdu 1,-\d+\(1\)\n//;
+ $p =~ s/^\tstd \d+,-?\d+\(1\)\n//g;
+
+ # This is bad: GCC 3 seems to zero-fill some local variables in the prologue
+ # under some circumstances, only when generating position dependent code.
+ # I have no idea why, and I don't think it is necessary, so let's toss it.
+ $p =~ s/^\tli \d+,0\n//g;
+ $p =~ s/^\tstd \d+,\d+\(1\)\n//g;
+ } else {
+ print STDERR "$Pgm: unknown prologue mangling? $TargetPlatform\n";
+ }
+
+ # HWL HACK: dont die, just print a warning
+ #print stderr "HWL: this should die! Prologue junk?: $p\n" if $p =~ /^\t[^\.]/;
+ die "Prologue junk?: $p\n" if $p =~ /^\s+[^\s\.]/;
+
+ # For PIC, we want to keep part of the prologue
+ if ($TargetPlatform =~ /^powerpc-apple-darwin.*/ && $pcrel_label ne "") {
+ # Darwin: load the current instruction pointer into register r31
+ $p .= "bcl 20,31,$pcrel_label\n";
+ $p .= "$pcrel_label:\n";
+ $p .= "\tmflr r31\n";
+ } elsif ($TargetPlatform =~ /^powerpc-.*-linux/ && $pcrel_label ne "") {
+ # Linux: load the GOT pointer into register 30
+ $p .= "\tbcl 20,31,.LCF$pcrel_label\n";
+ $p .= ".LCF$pcrel_label:\n";
+ $p .= "\tmflr 30\n";
+ $p .= "\tlwz 0,.LCL$pcrel_label-.LCF$pcrel_label(30)\n";
+ $p .= "\tadd 30,0,30\n";
+ } elsif ($TargetPlatform =~ /^i386-apple-darwin.*/ && $pcrel_label ne "") {
+ $p .= "\tcall ___i686.get_pc_thunk.$pcrel_reg\n";
+ $p .= "$pcrel_label:\n";
+ }
+
+ # glue together what's left
+ $c = $p . $r;
+ }
+ }
+
+ if ( $TargetPlatform =~ /^mips-/ ) {
+ # MIPS: first, this basic sequence may occur "--- END ---" or not
+ $c =~ s/^\tlw\t\$31,\d+\(\$sp\)\n\taddu\t\$sp,\$sp,\d+\n\tj\t\$31\n\t\.end/\t\.end/;
+ }
+
+ # toss all epilogue stuff; again, paranoidly
+ if ( $c =~ /--- END ---/ ) {
+ if (($r, $e) = split(/--- END ---/, $c)) {
+ if ($TargetPlatform =~ /^i386-/) {
+ $e =~ s/^\tret\n//;
+ $e =~ s/^\tpopl\s+\%edi\n//;
+ $e =~ s/^\tpopl\s+\%esi\n//;
+ $e =~ s/^\tpopl\s+\%edx\n//;
+ $e =~ s/^\tpopl\s+\%ecx\n//;
+ $e =~ s/^\taddl\s+\$\d+,\s*\%esp\n//;
+ $e =~ s/^\tsubl\s+\$-\d+,\s*\%esp\n//;
+ } elsif ($TargetPlatform =~ /^ia64-/) {
+ $e =~ s/^\tmov ar\.pfs = r\d+\n//;
+ $e =~ s/^\tmov b0 = r\d+\n//;
+ $e =~ s/^\t\.restore sp\n\tadds r12 = \d+, r12\n//;
+ $e =~ s/^\tbr\.ret\.sptk\.many b0\n//;
+ $e =~ s/^\t\.(mii|mmi|mib)\n//g; # bundling is no longer sensible
+ $e =~ s/^\t;;\n//g; # discard stops - stop at end of body is sufficient
+ $e =~ s/^\t\/\/.*\n//g; # gcc inserts timings in // comments
+ } elsif ($TargetPlatform =~ /^m68k-/) {
+ $e =~ s/^\tunlk a6\n//;
+ $e =~ s/^\trts\n//;
+ } elsif ($TargetPlatform =~ /^mips-/) {
+ $e =~ s/^\tlw\t\$31,\d+\(\$sp\)\n//;
+ $e =~ s/^\tlw\t\$fp,\d+\(\$sp\)\n//;
+ $e =~ s/^\taddu\t\$sp,\$sp,\d+\n//;
+ $e =~ s/^\tj\t\$31\n//;
+ } elsif ($TargetPlatform =~ /^powerpc-apple-darwin.*/) {
+ $e =~ s/^\taddi r1,r1,\d+\n//;
+ $e =~ s/^\tlwz r\d+,\d+\(r1\)\n//;
+ $e =~ s/^\tlmw r\d+,-\d+\(r1\)\n//;
+ $e =~ s/^\tmtlr r0\n//;
+ $e =~ s/^\tblr\n//;
+ $e =~ s/^\tb restFP ;.*\n//;
+ } elsif ($TargetPlatform =~ /^powerpc64-.*-linux/) {
+ $e =~ s/^\tmr 3,0\n//;
+ $e =~ s/^\taddi 1,1,\d+\n//;
+ $e =~ s/^\tld 0,16\(1\)\n//;
+ $e =~ s/^\tmtlr 0\n//;
+
+ # callee-save registers
+ $e =~ s/^\tld \d+,-?\d+\(1\)\n//g;
+ $e =~ s/^\tlfd \d+,-?\d+\(1\)\n//g;
+
+ # get rid of the debug junk along with the blr
+ $e =~ s/^\tblr\n\t.long .*\n\t.byte .*\n//;
+
+ # incase we missed it with the last one get the blr alone
+ $e =~ s/^\tblr\n//;
+ } else {
+ print STDERR "$Pgm: unknown epilogue mangling? $TargetPlatform\n";
+ }
+
+ print STDERR "WARNING: Epilogue junk?: $e\n" if $e =~ /^\t\s*[^\.\s\n]/;
+
+ # glue together what's left
+ $c = $r . $e;
+ $c =~ s/\n\t\n/\n/; # junk blank line
+ }
+ }
+
+ # On SPARCs, we don't do --- BEGIN/END ---, we just
+ # toss the register-windowing save/restore/ret* instructions
+ # directly unless they've been generated by function definitions in header
+ # files on Solaris:
+ if ( $TargetPlatform =~ /^sparc-/ ) {
+ if ( ! ( $TargetPlatform =~ /solaris2$/ && $chkcat[$i] eq 'unknown' )) {
+ $c =~ s/^\t(save.*|restore.*|ret|retl)\n//g;
+ }
+ # throw away PROLOGUE comments
+ $c =~ s/^\t!#PROLOGUE# 0\n\t!#PROLOGUE# 1\n//;
+ }
+
+ # On Alphas, the prologue mangling is done a little later (below)
+
+ # toss all calls to __DISCARD__
+ $c =~ s/^\t(call|jbsr|jal)\s+${T_US}__DISCARD__\n//go;
+ $c =~ s/^\tjsr\s+\$26\s*,\s*${T_US}__DISCARD__\n//go if $TargetPlatform =~ /^alpha-/;
+ $c =~ s/^\tbl\s+L___DISCARD__\$stub\n//go if $TargetPlatform =~ /^powerpc-apple-darwin.*/;
+ $c =~ s/^\tbl\s+__DISCARD__(\@plt)?\n//go if $TargetPlatform =~ /^powerpc-.*-linux/;
+ $c =~ s/^\tbl\s+\.__DISCARD__\n\s+nop\n//go if $TargetPlatform =~ /^powerpc64-.*-linux/;
+ $c =~ s/^\tcall\s+L___DISCARD__\$stub\n//go if $TargetPlatform =~ /i386-apple-darwin.*/;
+
+ # IA64: mangle tailcalls into jumps here
+ if ($TargetPlatform =~ /^ia64-/) {
+ while ($c =~ s/^\tbr\.call\.sptk\.many b0 = (.*)\n(?:^\.L([0-9]*):\n)?(?:\t;;\n)?(?:\tmov r1 = r\d+\n)?(?:\t;;\n)?\t--- TAILCALL ---\n(?:\t;;\n\tbr \.L\d+\n)?/\tbr\.few $1\n/) {
+ # Eek, the gcc optimiser is getting smarter... if we see a jump to the --- TAILCALL ---
+ # marker then we reapply the substitution at the source sites
+ $c =~ s/^\tbr \.L$2\n/\t--- TAILCALL ---\n/g if ($2);
+ }
+ }
+
+ # MIPS: that may leave some gratuitous asm macros around
+ # (no harm done; but we get rid of them to be tidier)
+ $c =~ s/^\t\.set\tnoreorder\n\t\.set\tnomacro\n\taddu\t(\S+)\n\t\.set\tmacro\n\t\.set\treorder\n/\taddu\t$1\n/
+ if $TargetPlatform =~ /^mips-/;
+
+ # toss stack adjustment after DoSparks
+ $c =~ s/^(\tjbsr _DoSparks\n)\taddqw #8,sp/$1/g
+ if $TargetPlatform =~ /^m68k-/; # this looks old...
+
+ if ( $TargetPlatform =~ /^alpha-/ &&
+ ! $magic_rdata_seen &&
+ $c =~ /^\s*\.rdata\n\t\.quad 0\n\t\.align \d\n/ ) {
+ $c =~ s/^\s*\.rdata\n\t\.quad 0\n\t\.align (\d)\n/\.rdata\n\t\.align $1\n/;
+ $magic_rdata_seen = 1;
+ }
+
+ # pick some end-things and move them to the next chunk
+
+ # pin a funny end-thing on (for easier matching):
+ $c .= 'FUNNY#END#THING';
+
+ while ( $c =~ /${T_MOVE_DIRVS}FUNNY#END#THING/o ) {
+
+ $to_move = $1;
+
+ # on x86 we try not to copy any directives into a literal
+ # chunk, rather we keep looking for the next real chunk. This
+ # is because we get things like
+ #
+ # .globl blah_closure
+ # .LC32
+ # .string "..."
+ # blah_closure:
+ # ...
+ #
+ if ( $TargetPlatform =~ /^(i386|sparc|powerpc)/ && $to_move =~ /${T_COPY_DIRVS}/ ) {
+ $j = $i + 1;
+ while ( $j < $numchks && $chk[$j] =~ /$T_CONST_LBL/) {
+ $j++;
+ }
+ if ( $j < $numchks ) {
+ $chk[$j] = $to_move . $chk[$j];
+ }
+ }
+
+ elsif ( $i < ($numchks - 1)
+ && ( $to_move =~ /${T_COPY_DIRVS}/
+ || ($TargetPlatform =~ /^hppa/ && $to_move =~ /align/ && $chkcat[$i+1] eq 'literal') )) {
+ $chk[$i + 1] = $to_move . $chk[$i + 1];
+ # otherwise they're tossed
+ }
+
+ $c =~ s/${T_MOVE_DIRVS}FUNNY#END#THING/FUNNY#END#THING/o;
+ }
+
+ if ( $TargetPlatform =~ /^alpha-/ && $c =~ /^\t\.ent\s+(\S+)/ ) {
+ $ent = $1;
+ # toss all prologue stuff, except for loading gp, and the ..ng address
+ unless ($c =~ /\.ent.*\n\$.*\.\.ng:/) {
+ if (($p, $r) = split(/^\t\.prologue/, $c)) {
+ if (($keep, $junk) = split(/\.\.ng:/, $p)) {
+ $keep =~ s/^\t\.frame.*\n/\t.frame \$30,0,\$26,0\n/;
+ $keep =~ s/^\t\.(mask|fmask).*\n//g;
+ $c = $keep . "..ng:\n";
+ } else {
+ print STDERR "malformed code block ($ent)?\n"
+ }
+ }
+ $c .= "\t.prologue" . $r;
+ }
+ }
+
+ $c =~ s/FUNNY#END#THING//;
+
+# print STDERR "\nCHK $i (AFTER) (",$chkcat[$i],"):\n", $c;
+
+ $chk[$i] = $c; # update w/ convenience copy
+ }
+
+ # open CHUNKS, ">/tmp/chunks2" or die "Cannot open /tmp/chunks2: $!\n";
+ # for (my $i = 0; $i < @chk; ++$i) { print CHUNKS "======= $i =======\n", $chk[$i] }
+ # close CHUNKS;
+
+ if ( $TargetPlatform =~ /^alpha-/ ) {
+ # print out the header stuff first
+ $chk[0] =~ s/^(\t\.file.*)"(ghc\d+\.c)"/$1"$ifile_root.hc"/;
+ print OUTASM $chk[0];
+
+ } elsif ( $TargetPlatform =~ /^hppa/ ) {
+ print OUTASM $chk[0];
+
+ } elsif ( $TargetPlatform =~ /^mips-/ ) {
+ $chk[0] = "\t\.file\t1 \"$ifile_root.hc\"\n" . $chk[0];
+
+ # get rid of horrible "<dollar>Revision: .*$" strings
+ local(@lines0) = split(/\n/, $chk[0]);
+ local($z) = 0;
+ while ( $z <= $#lines0 ) {
+ if ( $lines0[$z] =~ /^\t\.byte\t0x24,0x52,0x65,0x76,0x69,0x73,0x69,0x6f$/ ) {
+ undef($lines0[$z]);
+ $z++;
+ while ( $z <= $#lines0 ) {
+ undef($lines0[$z]);
+ last if $lines0[$z] =~ /[,\t]0x0$/;
+ $z++;
+ }
+ }
+ $z++;
+ }
+ $chk[0] = join("\n", @lines0);
+ $chk[0] =~ s/\n\n+/\n/;
+ print OUTASM $chk[0];
+ }
+
+ # print out all the literal strings next
+ for ($i = 0; $i < $numchks; $i++) {
+ if ( $chkcat[$i] eq 'literal' ) {
+
+ # HACK: try to detect 16-byte constants and align them
+ # on a 16-byte boundary. x86_64 sometimes needs 128-bit
+ # aligned constants, and so does Darwin/x86.
+ if ( $TargetPlatform =~ /^x86_64/
+ || $TargetPlatform =~ /^i386-apple-darwin/ ) {
+ $z = $chk[$i];
+ if ($z =~ /(\.long.*\n.*\.long.*\n.*\.long.*\n.*\.long|\.quad.*\n.*\.quad)/) {
+ print OUTASM $T_HDR_literal16;
+ } else {
+ print OUTASM $T_HDR_literal;
+ }
+ } else {
+ print OUTASM $T_HDR_literal;
+ }
+
+ print OUTASM $chk[$i];
+ print OUTASM "; end literal\n" if $TargetPlatform =~ /^hppa/; # for the splitter
+
+ $chkcat[$i] = 'DONE ALREADY';
+ }
+ }
+
+ # on the HPPA, print out all the bss next
+ if ( $TargetPlatform =~ /^hppa/ ) {
+ for ($i = 1; $i < $numchks; $i++) {
+ if ( $chkcat[$i] eq 'bss' ) {
+ print OUTASM "\t.SPACE \$PRIVATE\$\n\t.SUBSPA \$BSS\$\n\t.align 4\n";
+ print OUTASM $chk[$i];
+
+ $chkcat[$i] = 'DONE ALREADY';
+ }
+ }
+ }
+
+ for ($i = $FIRST_MANGLABLE; $i < $numchks; $i++) {
+# print STDERR "$i: cat $chkcat[$i], symb $chksymb[$i]\n";
+
+ next if $chkcat[$i] eq 'DONE ALREADY';
+
+ if ( $chkcat[$i] eq 'misc' || $chkcat[$i] eq 'unknown' ) {
+ if ($chk[$i] ne '') {
+ print OUTASM $T_HDR_misc;
+ &print_doctored($chk[$i], 0);
+ }
+
+ } elsif ( $chkcat[$i] eq 'toss' ) {
+ print STDERR "*** NB: TOSSING code for $chksymb[$i] !!! ***\n";
+
+ } elsif ( $chkcat[$i] eq 'data' ) {
+ if ($chk[$i] ne '') {
+ print OUTASM $T_HDR_data;
+ print OUTASM $chk[$i];
+ }
+
+ } elsif ( $chkcat[$i] eq 'splitmarker' ) {
+ # we can just re-constitute this one...
+ # NB: we emit _three_ underscores no matter what,
+ # so ghc-split doesn't have to care.
+ print OUTASM "___stg_split_marker",$chksymb[$i],"${T_POST_LBL}\n";
+
+ } elsif ( $chkcat[$i] eq 'closure'
+ || $chkcat[$i] eq 'srt'
+ || $chkcat[$i] eq 'infotbl'
+ || $chkcat[$i] eq 'entry') { # do them in that order
+ $symb = $chksymb[$i];
+
+ # CLOSURE
+ if ( defined($closurechk{$symb}) ) {
+ print OUTASM $T_HDR_closure;
+ print OUTASM $chk[$closurechk{$symb}];
+ $chkcat[$closurechk{$symb}] = 'DONE ALREADY';
+ }
+
+ # SRT
+ if ( defined($srtchk{$symb}) ) {
+ print OUTASM $T_HDR_relrodata;
+ print OUTASM $chk[$srtchk{$symb}];
+ $chkcat[$srtchk{$symb}] = 'DONE ALREADY';
+ }
+
+ # INFO TABLE
+ if ( defined($infochk{$symb}) ) {
+
+ print OUTASM $T_HDR_info;
+ print OUTASM &rev_tbl($symb, $chk[$infochk{$symb}], 1);
+
+ # entry code will be put here!
+
+ $chkcat[$infochk{$symb}] = 'DONE ALREADY';
+ }
+
+ # ENTRY POINT
+ if ( defined($entrychk{$symb}) ) {
+
+ $c = $chk[$entrychk{$symb}];
+
+ # If this is an entry point with an info table,
+ # eliminate the entry symbol and all directives involving it.
+ if (defined($infochk{$symb}) && $TargetPlatform !~ /^ia64-/) {
+ @o = ();
+ foreach $l (split(/\n/,$c)) {
+ next if $l =~ /^.*$symb_(entry|ret)${T_POST_LBL}/;
+
+ # If we have .type/.size direrctives involving foo_entry,
+ # then make them refer to foo_info instead. The information
+ # in these directives is used by the cachegrind annotator,
+ # so it is worthwhile keeping.
+ if ($l =~ /^\s*\.(type|size).*$symb_(entry|ret)/) {
+ $l =~ s/$symb(_entry|_ret)/${symb}_info/g;
+ push(@o,$l);
+ next;
+ }
+ next if $l =~ /^\s*\..*$symb.*\n?/;
+ push(@o,$l);
+ }
+ $c = join("\n",@o) . "\n";
+ }
+
+ print OUTASM $T_HDR_entry;
+
+ &print_doctored($c, 1); # NB: the 1!!!
+
+ $chkcat[$entrychk{$symb}] = 'DONE ALREADY';
+ }
+
+ } elsif ( $chkcat[$i] eq 'vector' ) {
+ $symb = $chksymb[$i];
+
+ # VECTOR TABLE
+ if ( defined($vectorchk{$symb}) ) {
+ print OUTASM $T_HDR_vector;
+ print OUTASM &rev_tbl($symb, $chk[$vectorchk{$symb}], 0);
+
+ # direct return code will be put here!
+ $chkcat[$vectorchk{$symb}] = 'DONE ALREADY';
+
+ } elsif ( $TargetPlatform =~ /^alpha-/ ) {
+ # Alphas: the commented nop is for the splitter, to ensure
+ # that no module ends with a label as the very last
+ # thing. (The linker will adjust the label to point
+ # to the first code word of the next module linked in,
+ # even if alignment constraints cause the label to move!)
+
+ print OUTASM "\t# nop\n";
+ }
+
+ } elsif ( $chkcat[$i] eq 'rodata' ) {
+ print OUTASM $T_HDR_rodata;
+ print OUTASM $chk[$i];
+ $chkcat[$i] = 'DONE ALREADY';
+ } elsif ( $chkcat[$i] eq 'relrodata' ) {
+ print OUTASM $T_HDR_relrodata;
+ print OUTASM $chk[$i];
+ $chkcat[$i] = 'DONE ALREADY';
+ } elsif ( $chkcat[$i] eq 'toc' ) {
+ # silly optimisation to print tocs, since they come in groups...
+ print OUTASM $T_HDR_toc;
+ local($j) = $i;
+ while ($chkcat[$j] eq 'toc')
+ { if ( $chk[$j] !~ /\.tc UpdatePAP\[TC\]/ # not needed: always turned into a jump.
+ )
+ {
+ print OUTASM $chk[$j];
+ }
+ $chkcat[$j] = 'DONE ALREADY';
+ $j++;
+ }
+
+ } elsif ( $TargetPlatform =~ /^.*-apple-darwin.*/ && $chkcat[$i] eq 'dyld' ) {
+ # apple-darwin: dynamic linker stubs
+ if($chk[$i] !~ /\.indirect_symbol ___DISCARD__/)
+ { # print them out unchanged, but remove the stubs for __DISCARD__
+ print OUTASM $chk[$i];
+ }
+ } elsif ( $TargetPlatform =~ /^i386-apple-darwin.*/ && $chkcat[$i] eq 'get_pc_thunk' ) {
+ # i386-apple-darwin: __i686.get_pc_thunk.[abcd]x
+ print OUTASM ".section __TEXT,__textcoal_nt,coalesced,no_toc\n";
+ print OUTASM $chk[$i];
+ } else {
+ &tidy_up_and_die(1,"$Pgm: unknown chkcat (ghc-asm: $TargetPlatform)\n$chkcat[$i]\n$chk[$i]\n");
+ }
+ }
+
+ print OUTASM $EXTERN_DECLS if $TargetPlatform =~ /^mips-/;
+
+ # finished
+ close(OUTASM) || &tidy_up_and_die(1,"Failed writing to $out_asmf\n");
+ close(INASM) || &tidy_up_and_die(1,"Failed reading from $in_asmf\n");
+}
+\end{code}
+
+\begin{code}
+sub hppa_mash_prologue { # OK, epilogue, too
+ local($_) = @_;
+
+ # toss all prologue stuff
+ s/^\s+\.ENTRY[^\0]*--- BEGIN ---/\t.ENTRY/;
+
+ # Lie about our .CALLINFO
+ s/^\s+\.CALLINFO.*$/\t.CALLINFO NO_CALLS,NO_UNWIND/;
+
+ # Get rid of P'
+
+ s/LP'/L'/g;
+ s/RP'/R'/g;
+
+ # toss all epilogue stuff
+ s/^\s+--- END ---[^\0]*\.EXIT/\t.EXIT/;
+
+ # Sorry; we moved the _info stuff to the code segment.
+ s/_info,DATA/_info,CODE/g;
+
+ return($_);
+}
+\end{code}
+
+\begin{code}
+sub print_doctored {
+ local($_, $need_fallthru_patch) = @_;
+
+ if ( $TargetPlatform =~ /^x86_64-/ ) {
+ # Catch things like
+ #
+ # movq -4(%ebp), %rax
+ # jmp *%rax
+ #
+ # and optimise:
+ #
+ s/^\tmovq\s+(-?\d*\(\%r(bx|bp|13)\)),\s*(\%r(ax|cx|dx|10|11))\n\tjmp\s+\*\3/\tjmp\t\*$1/g;
+ s/^\tmovl\s+\$${T_US}(.*),\s*(\%e(ax|cx|si|di))\n\tjmp\s+\*\%r\3/\tjmp\t$T_US$1/g;
+ }
+
+ if ( $TargetPlatform !~ /^i386-/
+ || ! /^\t[a-z]/ # no instructions in here, apparently
+ || /^${T_US}__stginit_[A-Za-z0-9_]+${T_POST_LBL}/) {
+ print OUTASM $_;
+ return;
+ }
+
+ # OK, must do some x86 **HACKING**
+
+ local($entry_patch) = '';
+ local($exit_patch) = '';
+
+ # gotta watch out for weird instructions that
+ # invisibly smash various regs:
+ # rep* %ecx used for counting
+ # scas* %edi used for destination index
+ # cmps* %e[sd]i used for indices
+ # loop* %ecx used for counting
+ #
+ # SIGH.
+
+ # We cater for:
+ # * use of STG reg [ nn(%ebx) ] where no machine reg avail
+ #
+ # * GCC used an "STG reg" for its own purposes
+ #
+ # * some secret uses of machine reg, requiring STG reg
+ # to be saved/restored
+
+ # The most dangerous "GCC uses" of an "STG reg" are when
+ # the reg holds the target of a jmp -- it's tricky to
+ # insert the patch-up code before we get to the target!
+ # So here we change the jmps:
+
+ # --------------------------------------------------------
+ # it can happen that we have jumps of the form...
+ # jmp *<something involving %esp>
+ # or
+ # jmp <something involving another naughty register...>
+ #
+ # a reasonably-common case is:
+ #
+ # movl $_blah,<bad-reg>
+ # jmp *<bad-reg>
+ #
+ s/^\tmovl\s+\$${T_US}(.*),\s*(\%e[acd]x)\n\tjmp\s+\*\2/\tjmp $T_US$1/g;
+
+ # Catch things like
+ #
+ # movl -4(%ebx), %eax
+ # jmp *%eax
+ #
+ # and optimise:
+ #
+ s/^\tmovl\s+(-?\d*\(\%e(bx|si)\)),\s*(\%e[acd]x)\n\tjmp\s+\*\3/\tjmp\t\*$1/g;
+
+ if ($StolenX86Regs <= 2 ) { # YURGH! spurious uses of esi?
+ s/^\tmovl\s+(.*),\s*\%esi\n\tjmp\s+\*%esi\n/\tmovl $1,\%eax\n\tjmp \*\%eax\n/g;
+ s/^\tjmp\s+\*(.*\(.*\%esi.*\))\n/\tmovl $1,\%eax\n\tjmp \*\%eax\n/g;
+ s/^\tjmp\s+\*\%esi\n/\tmovl \%esi,\%eax\n\tjmp \*\%eax\n/g;
+ die "$Pgm: (mangler) still have jump involving \%esi!\n$_"
+ if /(jmp|call)\s+.*\%esi/;
+ }
+ if ($StolenX86Regs <= 3 ) { # spurious uses of edi?
+ s/^\tmovl\s+(.*),\s*\%edi\n\tjmp\s+\*%edi\n/\tmovl $1,\%eax\n\tjmp \*\%eax\n/g;
+ s/^\tjmp\s+\*(.*\(.*\%edi.*\))\n/\tmovl $1,\%eax\n\tjmp \*\%eax\n/g;
+ s/^\tjmp\s+\*\%edi\n/\tmovl \%edi,\%eax\n\tjmp \*\%eax\n/g;
+ die "$Pgm: (mangler) still have jump involving \%edi!\n$_"
+ if /(jmp|call)\s+.*\%edi/;
+ }
+
+ # OK, now we can decide what our patch-up code is going to
+ # be:
+
+ # Offsets into register table - you'd better update these magic
+ # numbers should you change its contents!
+ # local($OFFSET_R1)=0; No offset for R1 in new RTS.
+ local($OFFSET_Hp)=88;
+
+ # Note funky ".=" stuff; we're *adding* to these _patch guys
+ if ( $StolenX86Regs <= 2
+ && ( /[^0-9]\(\%ebx\)/ || /\%esi/ || /^\tcmps/ ) ) { # R1 (esi)
+ $entry_patch .= "\tmovl \%esi,(\%ebx)\n";
+ $exit_patch .= "\tmovl (\%ebx),\%esi\n";
+
+ # nothing for call_{entry,exit} because %esi is callee-save
+ }
+ if ( $StolenX86Regs <= 3
+ && ( /${OFFSET_Hp}\(\%ebx\)/ || /\%edi/ || /^\t(scas|cmps)/ ) ) { # Hp (edi)
+ $entry_patch .= "\tmovl \%edi,${OFFSET_Hp}(\%ebx)\n";
+ $exit_patch .= "\tmovl ${OFFSET_Hp}(\%ebx),\%edi\n";
+
+ # nothing for call_{entry,exit} because %edi is callee-save
+ }
+
+ # --------------------------------------------------------
+ # next, here we go with non-%esp patching!
+ #
+ s/^(\t[a-z])/$entry_patch$1/; # before first instruction
+
+# Before calling GC we must set up the exit condition before the call
+# and entry condition when we come back
+
+ # fix _all_ non-local jumps:
+
+ if ( $TargetPlatform =~ /^.*-apple-darwin.*/ ) {
+ # On Darwin, we've got local-looking jumps that are
+ # actually global (i.e. jumps to Lfoo$stub or via
+ # Lfoo$non_lazy_ptr), so we fix those first.
+ # In fact, we just fix everything that contains a dollar
+ # because false positives don't hurt here.
+
+ s/^(\tjmp\s+\*?L.*\$.*\n)/$exit_patch$1/g;
+ }
+
+ s/^\tjmp\s+\*${T_X86_PRE_LLBL_PAT}/\tJMP___SL/go;
+ s/^\tjmp\s+${T_X86_PRE_LLBL_PAT}/\tJMP___L/go;
+
+ s/^(\tjmp\s+.*\n)/$exit_patch$1/g; # here's the fix...
+
+ s/^\tJMP___SL/\tjmp \*${T_X86_PRE_LLBL}/go;
+ s/^\tJMP___L/\tjmp ${T_X86_PRE_LLBL}/go;
+
+ if ($StolenX86Regs == 2 ) {
+ die "ARGH! Jump uses \%esi or \%edi with -monly-2-regs:\n$_"
+ if /^\t(jmp|call)\s+.*\%e(si|di)/;
+ } elsif ($StolenX86Regs == 3 ) {
+ die "ARGH! Jump uses \%edi with -monly-3-regs:\n$_"
+ if /^\t(jmp|call)\s+.*\%edi/;
+ }
+
+ # --------------------------------------------------------
+ # that's it -- print it
+ #
+ #die "Funny jumps?\n$_" if /${T_X86_BADJMP}/o; # paranoia
+
+ print OUTASM $_;
+
+ if ( $need_fallthru_patch ) { # exit patch for end of slow entry code
+ print OUTASM $exit_patch;
+ # ToDo: make it not print if there is a "jmp" at the end
+ }
+}
+\end{code}
+
+\begin{code}
+sub init_FUNNY_THINGS {
+ %KNOWN_FUNNY_THING = (
+ # example
+ # "${T_US}stg_.*{T_POST_LBL}", 1,
+ );
+}
+\end{code}
+
+The following table reversal is used for both info tables and return
+vectors. In both cases, we remove the first entry from the table,
+reverse the table, put the label at the end, and paste some code
+(that which is normally referred to by the first entry in the table)
+right after the table itself. (The code pasting is done elsewhere.)
+
+\begin{code}
+sub rev_tbl {
+ local($symb, $tbl, $discard1) = @_;
+
+ return ($tbl) if ($TargetPlatform =~ /^ia64-/);
+
+ local($before) = '';
+ local($label) = '';
+ local(@imports) = (); # hppa only
+ local(@words) = ();
+ local($after) = '';
+ local(@lines) = split(/\n/, $tbl);
+ local($i, $j);
+
+ # Deal with the header...
+ for ($i = 0; $i <= $#lines && $lines[$i] !~ /^\t?${T_DOT_WORD}\s+/o; $i++) {
+ $label .= $lines[$i] . "\n",
+ next if $lines[$i] =~ /^[A-Za-z0-9_]+_info${T_POST_LBL}$/o
+ || $lines[$i] =~ /${T_DOT_GLOBAL}/o
+ || $lines[$i] =~ /^${T_US}\S+_vtbl${T_POST_LBL}$/o;
+
+ $before .= $lines[$i] . "\n"; # otherwise...
+ }
+
+ $infoname = $label;
+ $infoname =~ s/(.|\n)*^([A-Za-z0-9_]+_info)${T_POST_LBL}$(.|\n)*/\2/;
+
+ # Grab the table data...
+ if ( $TargetPlatform !~ /^hppa/ ) {
+ for ( ; $i <= $#lines && $lines[$i] =~ /^\t?${T_DOT_WORD}\s+/o; $i++) {
+ $line = $lines[$i];
+ # Convert addresses of SRTs, slow entrypoints and large bitmaps
+ # to offsets (relative to the info label),
+ # in order to support position independent code.
+ $line =~ s/$infoname/0/
+ || $line =~ s/([A-Za-z0-9_]+_srtd)$/\1 - $infoname/
+ || $line =~ s/([A-Za-z0-9_]+_srt(\+\d+)?)$/\1 - $infoname/
+ || $line =~ s/([A-Za-z0-9_]+_slow)$/\1 - $infoname/
+ || $line =~ s/([A-Za-z0-9_]+_btm)$/\1 - $infoname/
+ || $line =~ s/([A-Za-z0-9_]+_alt)$/\1 - $infoname/
+ || $line =~ s/([A-Za-z0-9_]+_dflt)$/\1 - $infoname/
+ || $line =~ s/([A-Za-z0-9_]+_ret)$/\1 - $infoname/;
+ push(@words, $line);
+ }
+ } else { # hppa weirdness
+ for ( ; $i <= $#lines && $lines[$i] =~ /^\s+(${T_DOT_WORD}|\.IMPORT)/; $i++) {
+ # FIXME: the RTS now expects offsets instead of addresses
+ # for all labels in info tables.
+ if ($lines[$i] =~ /^\s+\.IMPORT/) {
+ push(@imports, $lines[$i]);
+ } else {
+ # We don't use HP's ``function pointers''
+ # We just use labels in code space, like normal people
+ $lines[$i] =~ s/P%//;
+ push(@words, $lines[$i]);
+ }
+ }
+ }
+
+ # Now throw away any initial zero word from the table. This is a hack
+ # that lets us reduce the size of info tables when the SRT field is not
+ # needed: see comments StgFunInfoTable in InfoTables.h.
+ #
+ # The .zero business is for Linux/ELF.
+ # The .skip business is for Sparc/Solaris/ELF.
+ # The .blockz business is for HPPA.
+# if ($discard1) {
+# if ($words[0] =~ /^\t?(${T_DOT_WORD}\s+0|\.zero\s+4|\.skip\s+4|\.blockz\s+4)/) {
+# shift(@words);
+# }
+# }
+
+ for (; $i <= $#lines; $i++) {
+ $after .= $lines[$i] . "\n";
+ }
+
+ # Alphas: If we have anonymous text (not part of a procedure), the
+ # linker may complain about missing exception information. Bleh.
+ # To suppress this, we place a .ent/.end pair around the code.
+ # At the same time, we have to be careful and not enclose any leading
+ # .file/.loc directives.
+ if ( $TargetPlatform =~ /^alpha-/ && $label =~ /^([A-Za-z0-9_]+):$/) {
+ local ($ident) = $1;
+ $before =~ s/^((\s*\.(file|loc)\s+[^\n]*\n)*)/$1\t.ent $ident\n/;
+ $after .= "\t.end $ident\n";
+ }
+
+ # Alphas: The heroic Simon Marlow found a bug in the Digital UNIX
+ # assembler (!) wherein .quad constants inside .text sections are
+ # first narrowed to 32 bits then sign-extended back to 64 bits.
+ # This obviously screws up our 64-bit bitmaps, so we work around
+ # the bug by replacing .quad with .align 3 + .long + .long [ccshan]
+ if ( $TargetPlatform =~ /^alpha-/ ) {
+ foreach (@words) {
+ if (/^\s*\.quad\s+([-+0-9].*\S)\s*$/ && length $1 >= 10) {
+ local ($number) = $1;
+ if ($number =~ /^([-+])?(0x?)?([0-9]+)$/) {
+ local ($sign, $base, $digits) = ($1, $2, $3);
+ $base = (10, 8, 16)[length $base];
+ local ($hi, $lo) = (0, 0);
+ foreach $i (split(//, $digits)) {
+ $j = $lo * $base + $i;
+ $lo = $j % 4294967296;
+ $hi = $hi * $base + ($j - $lo) / 4294967296;
+ }
+ ($hi, $lo) = (4294967295 - $hi, 4294967296 - $lo)
+ if $sign eq "-";
+ $_ = "\t.align 3\n\t.long $lo\n\t.long $hi\n";
+ # printf STDERR "TURNING %s into 0x %08x %08x\n", $number, $hi, $lo;
+ } else {
+ print STDERR "Cannot handle \".quad $number\" in info table\n";
+ exit 1;
+ }
+ }
+ }
+ }
+
+ $tbl = $before
+ . (($TargetPlatform !~ /^hppa/) ? '' : join("\n", @imports) . "\n")
+ . join("\n", @words) . "\n"
+ . $label . $after;
+
+# print STDERR "before=$before\n";
+# print STDERR "label=$label\n";
+# print STDERR "words=",(reverse @words),"\n";
+# print STDERR "after=$after\n";
+
+ $tbl;
+}
+\end{code}
+
+The HP is a major nuisance. The threaded code mangler moved info
+tables from data space to code space, but unthreaded code in the RTS
+still has references to info tables in data space. Since the HP
+linker is very precise about where symbols live, we need to patch the
+references in the unthreaded RTS as well.
+
+\begin{code}
+sub mini_mangle_asm_hppa {
+ local($in_asmf, $out_asmf) = @_;
+
+ open(INASM, "< $in_asmf")
+ || &tidy_up_and_die(1,"$Pgm: failed to open `$in_asmf' (to read)\n");
+ open(OUTASM,"> $out_asmf")
+ || &tidy_up_and_die(1,"$Pgm: failed to open `$out_asmf' (to write)\n");
+
+ while (<INASM>) {
+ s/_info,DATA/_info,CODE/; # Move _info references to code space
+ s/P%_PR/_PR/;
+ print OUTASM;
+ }
+
+ # finished:
+ close(OUTASM) || &tidy_up_and_die(1,"Failed writing to $out_asmf\n");
+ close(INASM) || &tidy_up_and_die(1,"Failed reading from $in_asmf\n");
+}
+
+\end{code}
+
+\begin{code}
+sub tidy_up_and_die {
+ local($return_val, $msg) = @_;
+ print STDERR $msg;
+ exit (($return_val == 0) ? 0 : 1);
+}
+\end{code}
diff --git a/driver/ordering-passes b/driver/ordering-passes
new file mode 100644
index 0000000000..305f3f06b4
--- /dev/null
+++ b/driver/ordering-passes
@@ -0,0 +1,257 @@
+ Ordering the compiler's passes
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Change notes
+~~~~~~~~~~~~
+1 Nov 94 * NB: if float-out is done after strictness, remember to
+ switch off demandedness flags on floated bindings!
+13 Oct 94 * Run Float Inwards once more after strictness-simplify [andre]
+ 4 Oct 94 * Do simplification between float-in and strictness [andre]
+ * Ignore-inline-pragmas flag for final simplification [andre]
+
+Aug 94 Original: Simon, Andy, Andre
+
+
+
+
+This ordering obeys all the constraints except (5)
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ full laziness
+ simplify with foldr/build
+ float-in
+ simplify
+ strictness
+ float-in
+
+[check FFT2 still gets benefits with this ordering]
+
+=================================
+ Constraints
+=================================
+
+1. float-in before strictness.
+Reason: floating inwards moves definitions inwards to a site at which
+the binding might well be strict.
+
+Example let x = ... in
+ y = x+1
+ in
+ ...
+===>
+ let y = let x = ... in x+1
+ in ...
+
+The strictness analyser will do a better job of the latter
+than the former.
+
+2. Don't simplify between float-in and strictness,
+unless you disable float-let-out-of-let, otherwise
+the simiplifier's local floating might undo some
+useful floating-in.
+
+Example let f = let y = .. in \x-> x+y
+ in ...
+===>
+ let y = ...
+ f = \x -> x+y
+ in ...
+
+This is a bad move, because now y isn't strict.
+In the pre-float case, the binding for y is strict.
+Mind you, this isn't a very common case, and
+it's easy to disable float-let-from-let.
+
+3. Want full-laziness before foldr/build.
+Reason: Give priority to sharing rather than deforestation.
+
+Example \z -> let xs = build g
+ in foldr k z xs
+===>
+ let xs = build g
+ in \x -> foldr k z xs
+
+In the post-full-laziness case, xs is shared between all
+applications of the function. If we did foldr/build
+first, we'd have got
+
+ \z -> g k z
+
+and now we can't share xs.
+
+
+4. Want strictness after foldr/build.
+Reason: foldr/build makes new function definitions which
+can benefit from strictness analysis.
+
+Example: sum [1..10]
+===> (f/b)
+ let g x a | x > 10 = a
+ | otherwise = g (x+1) (a+x)
+
+Here we clearly want to get strictness analysis on g.
+
+
+5. Want full laziness after strictness
+Reason: absence may allow something to be floated out
+which would not otherwise be.
+
+Example \z -> let x = f (a,z) in ...
+===> (absence anal + inline wrapper of f)
+ \z -> let x = f.wrk a in ...
+===> (full laziness)
+ let x= f.wrk a in \z -> ...
+
+TOO BAD. This doesn't look a common case to me.
+
+
+6. Want float-in after foldr/build.
+Reason: Desugaring list comprehensions + foldr/build
+gives rise to new float-in opportunities.
+
+Example ...some list comp...
+==> (foldr/build)
+ let v = h xs in
+ case ... of
+ [] -> v
+ (y:ys) -> ...(t v)...
+==> (simplifier)
+ let v = h xs in
+ case ... of
+ [] -> h xs
+ (y:ys) -> ...(t v)...
+
+Now v could usefully be floated into the second branch.
+
+7. Want simplify after float-inwards.
+[Occurred in the prelude, compiling ITup2.hs, function dfun.Ord.(*,*)]
+This is due to the following (that happens with dictionaries):
+
+let a1 = case v of (a,b) -> a
+in let m1 = \ c -> case c of I# c# -> case c# of 1 -> a1 5
+ 2 -> 6
+in let m2 = \ c -> case c of I# c# ->
+ case c# +# 1# of cc# -> let cc = I# cc#
+ in m1 cc
+ in (m1,m2)
+
+floating inwards will push the definition of a1 into m1 (supposing
+it is only used there):
+
+in let m1 = let a1 = case v of (a,b) -> a
+ in \ c -> case c of I# c# -> case c# of 1 -> a1 5
+ 2 -> 6
+in let m2 = \ c -> case c of I# c# ->
+ case c# +# 1# of cc# -> let cc = I# cc#
+ in m1 cc
+ in (m1,m2)
+
+if we do strictness analysis now we will not get a worker-wrapper
+for m1, because of the "let a1 ..." (notice that a1 is not strict in
+its body).
+
+Not having this worker wrapper might be very bad, because it might
+mean that we will have to rebox arguments to m1 if they are
+already unboxed, generating extra allocations, as occurs with m2 (cc)
+above.
+
+To solve this problem we have decided to run the simplifier after
+float-inwards, so that lets whose body is a HNF are floated out,
+undoing the float-inwards transformation in these cases.
+We are then back to the original code, which would have a worker-wrapper
+for m1 after strictness analysis and would avoid the extra let in m2.
+
+What we lose in this case are the opportunities for case-floating
+that could be presented if, for example, a1 would indeed be demanded (strict)
+after the floating inwards.
+
+The only way of having the best of both is if we have the worker/wrapper
+pass explicitly called, and then we could do with
+
+float-in
+strictness analysis
+simplify
+strictness analysis
+worker-wrapper generation
+
+as we would
+a) be able to detect the strictness of m1 after the
+ first call to the strictness analyser, and exploit it with the simplifier
+ (in case it was strict).
+b) after the call to the simplifier (if m1 was not demanded)
+ it would be floated out just like we currently do, before stricness
+ analysis II and worker/wrapperisation.
+
+The reason to not do worker/wrapperisation twice is to avoid
+generating wrappers for wrappers which could happen.
+
+
+8. If full laziness is ever done after strictness, remember to switch off
+demandedness flags on floated bindings! This isn't done at the moment.
+
+
+Ignore-inline-pragmas flag for final simplification
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+[Occurred in the prelude, compiling ITup2.hs, function dfun.Ord.(*,*)]
+Sometimes (e.g. in dictionary methods) we generate
+worker/wrappers for functions but the wrappers are never
+inlined. In dictionaries we often have
+
+dict = let f1 = ...
+ f2 = ...
+ ...
+ in (f1,f2,...)
+
+and if we create worker/wrappers for f1,...,fn the wrappers will not
+be inlined anywhere, and we will have ended up with extra
+closures (one for the worker and one for the wrapper) and extra
+function calls, as when we access the dictionary we will be acessing
+the wrapper, which will call the worker.
+The simplifier never inlines workers into wrappers, as the wrappers
+themselves have INLINE pragmas attached to them (so that they are always
+inlined, and we do not know in advance how many times they will be inlined).
+
+To solve this problem, in the last call to the simplifier we will
+ignore these inline pragmas and handle the workers and the wrappers
+as normal definitions. This will allow a worker to be inlined into
+the wrapper if it satisfies all the criteria for inlining (e.g. it is
+the only occurrence of the worker etc.).
+
+Run Float Inwards once more after strictness-simplify
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+[Occurred in the prelude, compiling IInt.hs, function const.Int.index.wrk]
+When workers are generated after strictness analysis (worker/wrapper),
+we generate them with "reboxing" lets, that simply reboxes the unboxed
+arguments, as it may be the case that the worker will need the
+original boxed value:
+
+f x y = case x of
+ (a,b) -> case y of
+ (c,d) -> case a == c of
+ True -> (x,x)
+ False -> ((1,1),(2,2))
+
+==> (worker/wrapper)
+
+f_wrapper x y = case x of
+ (a,b) -> case y of
+ (c,d) -> f_worker a b c d
+
+f_worker a b c d = let x = (a,b)
+ y = (c,d)
+ in case a == c of
+ True -> (x,x)
+ False -> ((1,1),(2,2))
+
+in this case the simplifier will remove the binding for y as it is not
+used (we expected this to happen very often, but we do not know how
+many "reboxers" are eventually removed and how many are kept), and
+will keep the binding for x. But notice that x is only used in *one*
+of the branches in the case, but is always being allocated! The
+floating inwards pass would push its definition into the True branch.
+A similar benefit occurs if it is only used inside a let definition.
+These are basically the advantages of floating inwards, but they are
+only exposed after the S.A./worker-wrapperisation of the code! As we
+also have reasons to float inwards before S.A. we have to run it
+twice.
+
diff --git a/driver/split/Makefile b/driver/split/Makefile
new file mode 100644
index 0000000000..6b545de20f
--- /dev/null
+++ b/driver/split/Makefile
@@ -0,0 +1,17 @@
+#-----------------------------------------------------------------------------
+# $Id: Makefile,v 1.2 2000/11/03 16:54:52 simonmar Exp $
+
+TOP=../..
+include $(TOP)/mk/boilerplate.mk
+
+SCRIPT_PROG = ghc-split
+
+INTERP=perl
+
+SCRIPT_SUBST_VARS := TARGETPLATFORM
+
+INSTALL_LIBEXEC_SCRIPTS += $(SCRIPT_PROG)
+
+CLEAN_FILES += $(SCRIPT_OBJS)
+
+include $(TOP)/mk/target.mk
diff --git a/driver/split/ghc-split.lprl b/driver/split/ghc-split.lprl
new file mode 100644
index 0000000000..4d159ec04f
--- /dev/null
+++ b/driver/split/ghc-split.lprl
@@ -0,0 +1,618 @@
+%************************************************************************
+%* *
+\section[Driver-obj-splitting]{Splitting into many \tr{.o} files (for libraries)}
+%* *
+%************************************************************************
+
+\begin{code}
+$TargetPlatform = $TARGETPLATFORM;
+
+($Pgm = $0) =~ s|.*/||;
+$ifile = $ARGV[0];
+$Tmp_prefix = $ARGV[1];
+$Output = $ARGV[2];
+
+&split_asm_file($ifile);
+
+open(OUTPUT, "> $Output") || &tidy_up_and_die(1,"$Pgm: failed to open `$Output' (to write)\n");
+print OUTPUT "$NoOfSplitFiles\n";
+close(OUTPUT);
+
+exit(0);
+\end{code}
+
+
+\begin{code}
+sub split_asm_file {
+ local($asm_file) = @_;
+
+ open(TMPI, "< $asm_file") || &tidy_up_and_die(1,"$Pgm: failed to open `$asm_file' (to read)\n");
+
+ &collectExports_hppa() if $TargetPlatform =~ /^hppa/;
+ &collectExports_mips() if $TargetPlatform =~ /^mips/;
+ &collectDyldStuff_darwin() if $TargetPlatform =~ /-apple-darwin/;
+
+ $octr = 0; # output file counter
+ $* = 1; # multi-line matches are OK
+
+ %LocalConstant = (); # we have to subvert C compiler's commoning-up of constants...
+
+ $s_stuff = &ReadTMPIUpToAMarker( '', $octr );
+ # that first stuff is a prologue for all .s outputs
+ $prologue_stuff = &process_asm_block ( $s_stuff );
+ # $_ already has some of the next stuff in it...
+
+# &tidy_up_and_die(1,"$Pgm: no split markers in .s file!\n")
+# if $prologue_stuff eq $s_stuff;
+
+ # lie about where this stuff came from
+ # Note the \Q: this ignores regex meta-chars in $Tmp_prefix.
+ $prologue_stuff =~ s/\Q"$Tmp_prefix.c"/"$ifile_root.hc"/g;
+
+ while ( $_ ne '' ) { # not EOF
+ $octr++;
+
+ # grab and de-mangle a section of the .s file...
+ $s_stuff = &ReadTMPIUpToAMarker ( $_, $octr );
+ $this_piece = &process_asm_block ( $s_stuff );
+
+ # output to a file of its own
+ # open a new output file...
+ $ofname = "${Tmp_prefix}__${octr}.s";
+ open(OUTF, "> $ofname") || die "$Pgm: can't open output file: $ofname\n";
+
+ print OUTF $prologue_stuff;
+ print OUTF $this_piece;
+
+ close(OUTF)
+ || &tidy_up_and_die(1,"$Pgm:Failed writing ${Tmp_prefix}__${octr}.s\n");
+ }
+
+ # Make sure that we still have some output when the input file is empty
+ if ( $octr == 0 ) {
+ $octr = 1;
+ $ofname = "${Tmp_prefix}__${octr}.s";
+ open(OUTF, "> $ofname") || die "$Pgm: can't open output file: $ofname\n";
+
+ print OUTF $prologue_stuff;
+
+ close(OUTF)
+ || &tidy_up_and_die(1,"$Pgm:Failed writing ${Tmp_prefix}__${octr}.s\n");
+ }
+
+ $NoOfSplitFiles = $octr;
+
+ close(TMPI) || &tidy_up_and_die(1,"Failed reading $asm_file\n");
+}
+
+sub collectExports_hppa { # Note: HP-PA only
+
+ %LocalExport = (); # NB: global table
+
+ while(<TMPI>) {
+ if (/^\s+\.EXPORT\s+([^,]+),.*\n/) {
+ local($label) = $1;
+ local($body) = "\t.IMPORT $label";
+ if (/,DATA/) {
+ $body .= ",DATA\n";
+ } else {
+ $body .= ",CODE\n";
+ }
+ $label =~ s/\$/\\\$/g;
+ $LocalExport{$label} = $body;
+ }
+ }
+
+ seek(TMPI, 0, 0);
+}
+
+sub collectExports_mips { # Note: MIPS only
+ # (not really sure this is necessary [WDP 95/05])
+
+ $UNDEFINED_FUNS = ''; # NB: global table
+
+ while(<TMPI>) {
+ $UNDEFINED_FUNS .= $_ if /^\t\.globl\s+\S+ \.\S+\n/;
+ # just save 'em all
+ }
+
+ seek(TMPI, 0, 0);
+}
+
+sub collectDyldStuff_darwin {
+ local($chunk_label,$label,$cur_section,$section,$chunk,$alignment,$cur_alignment);
+
+ %DyldChunks = (); # NB: global table
+ %DyldChunksDefined = (); # NB: global table
+
+ $cur_section = '';
+ $section = '';
+ $label = '';
+ $chunk = '';
+ $alignment = '';
+ $cur_alignment = '';
+
+ while ( 1 ) {
+ $_ = <TMPI>;
+ if ( $_ eq '' || /^L(_.+)\$.+:/ ) {
+ if ( $label ne '' ) {
+ $DyldChunksDefined{$label} .= $section . $alignment . $chunk_label . $ chunk;
+ if( $section =~ s/\.data/\.non_lazy_symbol_pointer/ ) {
+ $chunk = "\t.indirect_symbol $label\n\t.long 0\n";
+ }
+ $DyldChunks{$label} .= $section . $alignment . $chunk_label . $chunk;
+ print STDERR "### dyld chunk: $label\n$section$alignment$chunk\n###\n" if $Dump_asm_splitting_info;
+ }
+ last if ($_ eq '');
+
+ $chunk = '';
+ $chunk_label = $_;
+ $label = $1;
+ $section = $cur_section;
+ $alignment = $cur_alignment;
+ print STDERR "label: $label\n" if $Dump_asm_splitting_info;
+ } elsif ( /^\s*\.(symbol_stub|picsymbol_stub|lazy_symbol_pointer|non_lazy_symbol_pointer|data|section __IMPORT,.*)/ ) {
+ $cur_section = $_;
+ printf STDERR "section: $cur_section\n" if $Dump_asm_splitting_info;
+ $cur_alignment = ''
+ } elsif ( /^\s*\.section\s+__TEXT,__symbol_stub1,symbol_stubs,pure_instructions,\d+/ ) {
+ $cur_section = $_;
+ printf STDERR "section: $cur_section\n" if $Dump_asm_splitting_info;
+ # always make sure we align things
+ $cur_alignment = '\t.align 2'
+ } elsif ( /^\s*\.align.*/ ) {
+ $cur_alignment = $_;
+ printf STDERR "alignment: $cur_alignment\n" if $Dump_asm_splitting_info;
+ } else {
+ $chunk .= $_;
+ }
+ }
+
+ seek(TMPI, 0, 0);
+}
+
+sub ReadTMPIUpToAMarker {
+ local($str, $count) = @_; # already read bits
+
+
+ for ( $_ = <TMPI>; $_ ne '' && ! /_?__stg_split_marker/; $_ = <TMPI> ) {
+ $str .= $_;
+ }
+ # if not EOF, then creep forward until next "real" line
+ # (throwing everything away).
+ # that first "real" line will stay in $_.
+
+ # This loop is intended to pick up the body of the split_marker function
+ # Note that the assembler mangler will already have eliminated this code
+ # if it's been invoked (which it probably has).
+
+ while ($_ ne '' && (/_?__stg_split_marker/
+ || /^L[^C].*:$/
+ || /^\.stab/
+ || /\t\.proc/
+ || /\t\.stabd/
+ || /\t\.even/
+ || /\tunlk a6/
+ || /^\t!#PROLOGUE/
+ || /\t\.prologue/
+ || /\t\.frame/
+ # || /\t\.end/ NOT! Let the split_marker regexp catch it
+ # || /\t\.ent/ NOT! Let the split_marker regexp catch it
+ || /^\s+(save|retl?|restore|nop)/)) {
+ $_ = <TMPI>;
+ }
+
+ print STDERR "### BLOCK:$count:\n$str" if $Dump_asm_splitting_info;
+
+ # return str
+ $str =~ tr/\r//d if $TargetPlatform =~ /-mingw32$/; # in case Perl doesn't convert line endings
+ $str;
+}
+\end{code}
+
+We must (a)~strip the marker off the block, (b)~record any literal C
+constants that are defined here, and (c)~inject copies of any C constants
+that are used-but-not-defined here.
+
+\begin{code}
+sub process_asm_block {
+ local($str) = @_;
+
+ return(&process_asm_block_darwin($str))
+ if $TargetPlatform =~ /-apple-darwin/;
+ return(&process_asm_block_m68k($str)) if $TargetPlatform =~ /^m68k-/;
+ return(&process_asm_block_sparc($str)) if $TargetPlatform =~ /^sparc-/;
+ return(&process_asm_block_iX86($str)) if $TargetPlatform =~ /^i[34]86-/;
+ return(&process_asm_block_x86_64($str)) if $TargetPlatform =~ /^x86_64-/;
+ return(&process_asm_block_alpha($str)) if $TargetPlatform =~ /^alpha-/;
+ return(&process_asm_block_hppa($str)) if $TargetPlatform =~ /^hppa/;
+ return(&process_asm_block_mips($str)) if $TargetPlatform =~ /^mips-/;
+ return(&process_asm_block_powerpc_linux($str))
+ if $TargetPlatform =~ /^powerpc-[^-]+-linux/;
+
+ # otherwise...
+ &tidy_up_and_die(1,"$Pgm: no process_asm_block for $TargetPlatform\n");
+}
+
+sub process_asm_block_sparc {
+ local($str) = @_;
+
+ # strip the marker
+ if ( $OptimiseC ) {
+ $str =~ s/_?__stg_split_marker.*:\n//;
+ } else {
+ $str =~ s/(\.text\n\t\.align .\n)\t\.global\s+.*_?__stg_split_marker.*\n\t\.proc.*\n/$1/;
+ $str =~ s/(\t\.align .\n)\t\.global\s+.*_?__stg_split_marker.*\n\t\.proc.*\n/$1/;
+ }
+
+ # make sure the *.hc filename gets saved; not just ghc*.c (temp name)
+ $str =~ s/^\.stabs "(ghc\d+\.c)"/.stabs "$ifile_root.hc"/g; # HACK HACK
+
+ # remove/record any literal constants defined here
+ while ( $str =~ /(\t\.align .\n\.?(L?LC\d+):\n(\t\.asci[iz].*\n)+)/ ) {
+ local($label) = $2;
+ local($body) = $1;
+
+ &tidy_up_and_die(1,"Local constant label $label already defined!\n")
+ if $LocalConstant{$label};
+
+ $LocalConstant{$label} = $body;
+
+ $str =~ s/\t\.align .\n\.?LL?C\d+:\n(\t\.asci[iz].*\n)+//;
+ }
+
+ # inject definitions for any local constants now used herein
+ foreach $k (keys %LocalConstant) {
+ if ( $str =~ /\b$k\b/ ) {
+ $str = $LocalConstant{$k} . $str;
+ }
+ }
+
+ print STDERR "### STRIPPED BLOCK (sparc):\n$str" if $Dump_asm_splitting_info;
+
+ $str;
+}
+
+sub process_asm_block_m68k {
+ local($str) = @_;
+
+ # strip the marker
+
+ $str =~ s/(\.text\n\t\.even\n)\t\.globl\s+.*_?__stg_split_marker.*\n/$1/;
+ $str =~ s/(\t\.even\n)\t\.globl\s+.*_?__stg_split_marker.*\n/$1/;
+
+ # it seems prudent to stick on one of these:
+ $str = "\.text\n\t.even\n" . $str;
+
+ # remove/record any literal constants defined here
+ while ( $str =~ /((LC\d+):\n\t\.ascii.*\n)/ ) {
+ local($label) = $2;
+ local($body) = $1;
+
+ &tidy_up_and_die(1,"Local constant label $label already defined!\n")
+ if $LocalConstant{$label};
+
+ $LocalConstant{$label} = $body;
+
+ $str =~ s/LC\d+:\n\t\.ascii.*\n//;
+ }
+
+ # inject definitions for any local constants now used herein
+ foreach $k (keys %LocalConstant) {
+ if ( $str =~ /\b$k\b/ ) {
+ $str = $LocalConstant{$k} . $str;
+ }
+ }
+
+ print STDERR "### STRIPPED BLOCK (m68k):\n$str" if $Dump_asm_splitting_info;
+
+ $str;
+}
+
+sub process_asm_block_alpha {
+ local($str) = @_;
+
+ # strip the marker
+ if ( $OptimiseC ) {
+ $str =~ s/_?__stg_split_marker.*:\n//;
+ } else {
+ $str =~ s/(\t\.align .\n)\t\.globl\s+.*_?__stg_split_marker.*\n\t\.ent.*\n/$1/;
+ }
+
+ # remove/record any literal constants defined here
+ while ( $str =~ /(\.rdata\n\t\.align \d\n)?(\$(C\d+):\n\t\..*\n)/ ) {
+ local($label) = $3;
+ local($body) = $2;
+
+ &tidy_up_and_die(1,"Local constant label $label already defined!\n")
+ if $LocalConstant{$label};
+
+ $LocalConstant{$label} = ".rdata\n\t.align 3\n" . $body . "\t.text\n";
+
+ $str =~ s/(\.rdata\n\t\.align \d\n)?\$C\d+:\n\t\..*\n//;
+ }
+
+ # inject definitions for any local constants now used herein
+ foreach $k (keys %LocalConstant) {
+ if ( $str =~ /\$\b$k\b/ ) {
+ $str = $LocalConstant{$k} . $str;
+ }
+ }
+
+ # Slide the dummy direct return code into the vtbl .ent/.end block,
+ # to keep the label fixed if it's the last thing in a module, and
+ # to avoid having any anonymous text that the linker will complain about
+ $str =~ s/(\t\.end [A-Za-z0-9_]+)\n\t# nop/\tnop\n$1/g;
+
+ print STDERR "### STRIPPED BLOCK (alpha):\n$str" if $Dump_asm_splitting_info;
+
+ $str;
+}
+
+sub process_asm_block_iX86 {
+ local($str) = @_;
+
+ # strip the marker
+
+ $str =~ s/(\.text\n\t\.align .(,0x90)?\n)\.globl\s+.*_?__stg_split_marker.*\n/$1/;
+ $str =~ s/(\t\.align .(,0x90)?\n)\.globl\s+.*_?__stg_split_marker.*\n/$1/;
+
+ # it seems prudent to stick on one of these:
+ $str = "\.text\n\t.align 4\n" . $str;
+
+ # remove/record any literal constants defined here
+ # [perl made uglier to work around the perl 5.7/5.8 bug documented at
+ # http://bugs6.perl.org/rt2/Ticket/Display.html?id=1760 and illustrated
+ # by the seg fault of perl -e '("x\n" x 5000) =~ /(.*\n)+/'
+ # -- ccshan 2002-09-05]
+ while ( ($str =~ /(\.?(LC\d+):\n(\t\.(ascii|string).*\n|\s*\.byte.*\n){1,100})/ )) {
+ local($label) = $2;
+ local($body) = $1;
+ local($prefix, $suffix, $*) = ($`, $', 0);
+
+ &tidy_up_and_die(1,"Local constant label $label already defined!\n")
+ if $LocalConstant{$label};
+
+ while ( $suffix =~ /^((\t\.(ascii|string).*\n|\s*\.byte.*\n){1,100})/ ) {
+ $body .= $1;
+ $suffix = $';
+ }
+ $LocalConstant{$label} = $body;
+ $str = $prefix . $suffix;
+ }
+
+ # inject definitions for any local constants now used herein
+ foreach $k (keys %LocalConstant) {
+ if ( $str =~ /\b$k\b/ ) {
+ $str = $LocalConstant{$k} . $str;
+ }
+ }
+
+ print STDERR "### STRIPPED BLOCK (iX86):\n$str" if $Dump_asm_splitting_info;
+
+ $str;
+}
+\end{code}
+
+\begin{code}
+sub process_asm_block_x86_64 {
+ local($str) = @_;
+
+ # remove/record any literal constants defined here
+ # [perl made uglier to work around the perl 5.7/5.8 bug documented at
+ # http://bugs6.perl.org/rt2/Ticket/Display.html?id=1760 and illustrated
+ # by the seg fault of perl -e '("x\n" x 5000) =~ /(.*\n)+/'
+ # -- ccshan 2002-09-05]
+ while ( ($str =~ /(\.?(LC\d+):\n(\t\.(ascii|string).*\n|\s*\.byte.*\n){1,100})/ )) {
+ local($label) = $2;
+ local($body) = $1;
+ local($prefix, $suffix, $*) = ($`, $', 0);
+
+ &tidy_up_and_die(1,"Local constant label $label already defined!\n")
+ if $LocalConstant{$label};
+
+ while ( $suffix =~ /^((\t\.(ascii|string).*\n|\s*\.byte.*\n){1,100})/ ) {
+ $body .= $1;
+ $suffix = $';
+ }
+ $LocalConstant{$label} = $body;
+ $str = $prefix . $suffix;
+ }
+
+ # inject definitions for any local constants now used herein
+ foreach $k (keys %LocalConstant) {
+ if ( $str =~ /\b$k\b/ ) {
+ $str = $LocalConstant{$k} . $str;
+ }
+ }
+
+ print STDERR "### STRIPPED BLOCK (x86_64):\n$str" if $Dump_asm_splitting_info;
+
+ $str;
+}
+\end{code}
+
+\begin{code}
+sub process_asm_block_hppa {
+ local($str) = @_;
+
+ # strip the marker
+ $str =~ s/___stg_split_marker.*\n//;
+
+ # remove/record any imports defined here
+ while ( $str =~ /^(\s+\.IMPORT\s.*\n)/ ) {
+ $Imports .= $1;
+
+ $str =~ s/^\s+\.IMPORT.*\n//;
+ }
+
+ # remove/record any literal constants defined here
+ while ( $str =~ /^(\s+\.align.*\n(L\$C\d+)\n(\s.*\n)+); end literal\n/ ) {
+ local($label) = $2;
+ local($body) = $1;
+ local($prefix) = $`;
+ local($suffix) = $';
+ $label =~ s/\$/\\\$/g;
+
+ &tidy_up_and_die(1,"Local constant label $label already defined!\n")
+ if $LocalConstant{$label};
+
+ $LocalConstant{$label} = "\t.SPACE \$TEXT\$\n\t.SUBSPA \$LIT\$\n\n" . $body;
+
+ $str = $prefix . $suffix;
+ }
+
+ # inject definitions for any local constants now used herein
+ foreach $k (keys %LocalConstant) {
+ if ( $str =~ /\b$k\b/ ) {
+ $str = $LocalConstant{$k} . $str;
+ }
+ }
+
+ # inject required imports for local exports in other chunks
+ foreach $k (keys %LocalExport) {
+ if ( $str =~ /\b$k\b/ && ! /EXPORT\s+$k\b/ ) {
+ $str = $LocalExport{$k} . $str;
+ }
+ }
+
+ # inject collected imports
+
+ $str = $Imports . $str;
+
+ print STDERR "### STRIPPED BLOCK (hppa):\n$str" if $Dump_asm_splitting_info;
+
+ $str;
+}
+\end{code}
+
+\begin{code}
+sub process_asm_block_mips {
+ local($str) = @_;
+
+ # strip the marker
+ if ( $OptimiseC ) {
+ $str =~ s/_?__stg_split_marker.*:\n//;
+ } else {
+ $str =~ s/(\t\.align .\n)\t\.globl\s+.*_?__stg_split_marker.*\n\t\.ent.*\n/$1/;
+ }
+
+ # remove/record any literal constants defined here
+ while ( $str =~ /(\t\.rdata\n\t\.align \d\n)?(\$(LC\d+):\n(\t\.byte\t.*\n)+)/ ) {
+ local($label) = $3;
+ local($body) = $2;
+
+ &tidy_up_and_die(1,"Local constant label $label already defined!\n")
+ if $LocalConstant{$label};
+
+ $LocalConstant{$label} = "\t.rdata\n\t.align 2\n" . $body . "\t.text\n";
+
+ $str =~ s/(\t\.rdata\n\t\.align \d\n)?\$LC\d+:\n(\t\.byte\t.*\n)+//;
+ }
+
+ # inject definitions for any local constants now used herein
+ foreach $k (keys %LocalConstant) {
+ if ( $str =~ /\$\b$k\b/ ) {
+ $str = $LocalConstant{$k} . $str;
+ }
+ }
+
+ # Slide the dummy direct return code into the vtbl .ent/.end block,
+ # to keep the label fixed if it's the last thing in a module, and
+ # to avoid having any anonymous text that the linker will complain about
+ $str =~ s/(\t\.end [A-Za-z0-9_]+)\n\t# nop/\tnop\n$1/g;
+
+ $str .= $UNDEFINED_FUNS; # pin on gratuitiously-large amount of info
+
+ print STDERR "### STRIPPED BLOCK (mips):\n$str" if $Dump_asm_splitting_info;
+
+ $str;
+}
+\end{code}
+
+\begin{code}
+# The logic for both Darwin/PowerPC and Darwin/x86 ends up being the same.
+
+sub process_asm_block_darwin {
+ local($str) = @_;
+ local($dyld_stuff) = '';
+
+ # strip the marker
+ $str =~ s/___stg_split_marker.*\n//;
+
+ $str =~ s/L_.*\$.*:\n(.|\n)*//;
+
+ # remove/record any literal constants defined here
+ while ( $str =~ s/^(\s+.const.*\n\s+\.align.*\n(LC\d+):\n(\s\.(byte|short|long|fill|space|ascii).*\n)+)// ) {
+ local($label) = $2;
+ local($body) = $1;
+
+ &tidy_up_and_die(1,"Local constant label $label already defined!\n")
+ if $LocalConstant{$label};
+
+ $LocalConstant{$label} = $body;
+ }
+
+ # inject definitions for any local constants now used herein
+ foreach $k (keys %LocalConstant) {
+ if ( $str =~ /\b$k(\b|\[)/ ) {
+ $str = $LocalConstant{$k} . $str;
+ }
+ }
+
+ foreach $k (keys %DyldChunks) {
+ if ( $str =~ /\bL$k\$/ ) {
+ if ( $str =~ /^$k:$/ ) {
+ $dyld_stuff .= $DyldChunksDefined{$k};
+ } else {
+ $dyld_stuff .= $DyldChunks{$k};
+ }
+ }
+ }
+
+ $str .= "\n" . $dyld_stuff;
+
+ print STDERR "### STRIPPED BLOCK (darwin):\n$str" if $Dump_asm_splitting_info;
+
+ $str;
+}
+\end{code}
+
+\begin{code}
+sub process_asm_block_powerpc_linux {
+ local($str) = @_;
+
+ # strip the marker
+ $str =~ s/__stg_split_marker.*\n//;
+
+ # remove/record any literal constants defined here
+ while ( $str =~ s/^(\s+.section\s+\.rodata\n\s+\.align.*\n(\.LC\d+):\n(\s\.(byte|short|long|quad|2byte|4byte|8byte|fill|space|ascii|string).*\n)+)// ) {
+ local($label) = $2;
+ local($body) = $1;
+
+ &tidy_up_and_die(1,"Local constant label $label already defined!\n")
+ if $LocalConstant{$label};
+
+ $LocalConstant{$label} = $body;
+ }
+
+ # inject definitions for any local constants now used herein
+ foreach $k (keys %LocalConstant) {
+ if ( $str =~ /[\s,]$k\b/ ) {
+ $str = $LocalConstant{$k} . $str;
+ }
+ }
+
+ print STDERR "### STRIPPED BLOCK (powerpc linux):\n$str" if $Dump_asm_splitting_info;
+
+ $str;
+}
+\end{code}
+
+\begin{code}
+sub tidy_up_and_die {
+ local($return_val, $msg) = @_;
+ print STDERR $msg;
+ exit (($return_val == 0) ? 0 : 1);
+}
+\end{code}
diff --git a/driver/test_mangler b/driver/test_mangler
new file mode 100644
index 0000000000..96cf31ca68
--- /dev/null
+++ b/driver/test_mangler
@@ -0,0 +1,29 @@
+#! /usr/bin/perl
+# a simple wrapper to test a .s-file mangler
+# reads stdin, writes stdout
+
+push(@INC,"/net/dazdak/BUILDS/gransim-4.04/i386-unknown-linux/ghc/driver");
+
+$TargetPlatform = $ARGV[0]; shift; # nice error checking, Will
+
+require("ghc-asm.prl") || die "require mangler failed!\n";
+
+$SpX86Mangling = 1;
+$StolenX86Regs = 4;
+
+open(INP, "> /tmp/mangle1.$$") || die "Can't open tmp file 1\n";
+while (<>) {
+ print INP $_;
+}
+close(INP) || die "Can't close tmp file 1";
+
+&mangle_asm("/tmp/mangle1.$$", "/tmp/mangle2.$$");
+
+open(INP, "< /tmp/mangle2.$$") || die "Can't open tmp file 2\n";
+while (<INP>) {
+ print STDOUT $_;
+}
+close(INP) || die "Can't close tmp file 2";
+
+unlink("/tmp/mangle1.$$", "/tmp/mangle2.$$");
+exit(0);
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