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-rw-r--r--gcc/ChangeLog23
-rw-r--r--gcc/collect2.c4
-rw-r--r--gcc/config.in6
-rw-r--r--gcc/config/i386/cygming.h5
-rw-r--r--gcc/config/i386/i386.h9
-rw-r--r--gcc/config/i386/mingw-w64.h17
-rw-r--r--gcc/config/i386/mingw32.h22
-rwxr-xr-xgcc/configure18
-rw-r--r--gcc/configure.ac8
-rw-r--r--gcc/tlink.c4
10 files changed, 109 insertions, 7 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index a6e7bf42293..eba2adab7af 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,26 @@
+2010-04-27 Kai Tietz <kai.tietz@onevision.com>
+
+ * collect2.c (TARGET_64BIT): Redefine to target's default.
+ * tlink.c: Likewise.
+ * config/i386/cygming.h (USER_LABEL_PREFIX): Define
+ dependent to TARGET_64BIT and USE_MINGW64_LEADING_UNDERSCORES.
+ * config/i386/i386.h (CRT_CALL_STATIC_FUNCTION): Use
+ for underscoring __USER_LABEL_PREFIX__.
+ * config/i386/mingw-w64.h (SUB_LINK_ENTRY): New macro.
+ (SUB_LINK_ENTRY32): New.
+ (SUB_LINK_ENTRY64): New.
+ (LINK_SPEC): Replace entry point spec by
+ SUB_LINK_ENTRY.
+ * config/i386/mingw32 (SUB_LINK_ENTRY32): New.
+ (SUB_LINK_ENTRY64): New.
+ (SUB_LINK_ENTRY): New.
+ (LINK_SPEC): Use SUB_LINK_ENTRY instead of hard-coded entry-point.
+ (DWARF2_UNWIND_INFO): Error out for use of dw2 unwind when
+ x64 target is choosen.
+ * config.in (USE_MINGW64_LEADING_UNDERSCORES): New.
+ * configure: Regenerated.
+ * configure.ac (leading-mingw64-underscores): Option added.
+
2010-04-27 Jan Hubicka <jh@suse.cz>
* doc/invoke.texi (-fipa-profile): Document.
diff --git a/gcc/collect2.c b/gcc/collect2.c
index ad66202642d..481f73990f9 100644
--- a/gcc/collect2.c
+++ b/gcc/collect2.c
@@ -35,6 +35,10 @@ along with GCC; see the file COPYING3. If not see
# define SIGCHLD SIGCLD
#endif
+/* TARGET_64BIT may be defined to use driver specific functionality. */
+#undef TARGET_64BIT
+#define TARGET_64BIT TARGET_64BIT_DEFAULT
+
#ifndef LIBRARY_PATH_ENV
#define LIBRARY_PATH_ENV "LIBRARY_PATH"
#endif
diff --git a/gcc/config.in b/gcc/config.in
index 9525625630f..7b04bbcb856 100644
--- a/gcc/config.in
+++ b/gcc/config.in
@@ -1679,6 +1679,12 @@
#endif
+/* Define if we should use leading underscore on 64 bit mingw targets */
+#ifndef USED_FOR_TARGET
+#undef USE_MINGW64_LEADING_UNDERSCORES
+#endif
+
+
/* Enable extensions on AIX 3, Interix. */
#ifndef _ALL_SOURCE
# undef _ALL_SOURCE
diff --git a/gcc/config/i386/cygming.h b/gcc/config/i386/cygming.h
index a726bb4455e..71a5d8d99c9 100644
--- a/gcc/config/i386/cygming.h
+++ b/gcc/config/i386/cygming.h
@@ -39,6 +39,11 @@ along with GCC; see the file COPYING3. If not see
#undef DEFAULT_ABI
#define DEFAULT_ABI (TARGET_64BIT ? MS_ABI : SYSV_ABI)
+#if ! defined (USE_MINGW64_LEADING_UNDERSCORES)
+#undef USER_LABEL_PREFIX
+#define USER_LABEL_PREFIX (TARGET_64BIT ? "" : "_")
+#endif
+
#undef DBX_REGISTER_NUMBER
#define DBX_REGISTER_NUMBER(n) \
(TARGET_64BIT ? dbx64_register_map[n] \
diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h
index 4b83370c9a6..163cda189d0 100644
--- a/gcc/config/i386/i386.h
+++ b/gcc/config/i386/i386.h
@@ -2148,9 +2148,12 @@ do { \
/* Switch to init or fini section via SECTION_OP, emit a call to FUNC,
and switch back. For x86 we do this only to save a few bytes that
would otherwise be unused in the text section. */
-#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \
- asm (SECTION_OP "\n\t" \
- "call " USER_LABEL_PREFIX #FUNC "\n" \
+#define CRT_MKSTR2(VAL) #VAL
+#define CRT_MKSTR(x) CRT_MKSTR2(x)
+
+#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \
+ asm (SECTION_OP "\n\t" \
+ "call " CRT_MKSTR(__USER_LABEL_PREFIX__) #FUNC "\n" \
TEXT_SECTION_ASM_OP);
/* Print operand X (an rtx) in assembler syntax to file FILE.
diff --git a/gcc/config/i386/mingw-w64.h b/gcc/config/i386/mingw-w64.h
index 85840826674..3aafb933dd4 100644
--- a/gcc/config/i386/mingw-w64.h
+++ b/gcc/config/i386/mingw-w64.h
@@ -39,6 +39,8 @@ along with GCC; see the file COPYING3. If not see
#define ASM_SPEC "%{v:-v} %{n} %{T} %{Ym,*} %{Yd,*} \
%{Wa,*:%*} %{m32:--32} %{m64:--64}"
+#undef SPEC_32
+#undef SPEC_64
#if TARGET_64BIT_DEFAULT
#define SPEC_32 "m32"
#define SPEC_64 "!m32"
@@ -47,8 +49,21 @@ along with GCC; see the file COPYING3. If not see
#define SPEC_64 "m64"
#endif
+#undef SUB_LINK_ENTRY32
+#undef SUB_LINK_ENTRY64
+#define SUB_LINK_ENTRY32 "-e _DllMainCRTStartup@12"
+#if defined(USE_MINGW64_LEADING_UNDERSCORES)
+#define SUB_LINK_ENTRY64 "-e _DllMainCRTStartup"
+#else
+#define SUB_LINK_ENTRY64 "-e DllMainCRTStartup"
+#endif
+
+#undef SUB_LINK_SPEC
+#undef SUB_LINK_ENTRY
#define SUB_LINK_SPEC "%{" SPEC_64 ":-m i386pep} %{" SPEC_32 ":-m i386pe}"
+#define SUB_LINK_ENTRY "%{" SPEC_64 ":" SUB_LINK_ENTRY64 "} %{" SPEC_32 ":" SUB_LINK_ENTRY32 "}"
+#undef MULTILIB_DEFAULTS
#if TARGET_64BIT_DEFAULT
#define MULTILIB_DEFAULTS { "m64" }
#else
@@ -61,5 +76,5 @@ along with GCC; see the file COPYING3. If not see
%{shared: %{mdll: %eshared and mdll are not compatible}} \
%{shared: --shared} %{mdll:--dll} \
%{static:-Bstatic} %{!static:-Bdynamic} \
- %{shared|mdll: -e _DllMainCRTStartup@12 --enable-auto-image-base} \
+ %{shared|mdll: " SUB_LINK_ENTRY " --enable-auto-image-base} \
%(shared_libgcc_undefs)"
diff --git a/gcc/config/i386/mingw32.h b/gcc/config/i386/mingw32.h
index 2e877d8d2f0..e08ea1cd90c 100644
--- a/gcc/config/i386/mingw32.h
+++ b/gcc/config/i386/mingw32.h
@@ -47,6 +47,22 @@ along with GCC; see the file COPYING3. If not see
} \
while (0)
+#undef SUB_LINK_ENTRY32
+#undef SUB_LINK_ENTRY64
+#define SUB_LINK_ENTRY32 "-e _DllMainCRTStartup@12"
+#if defined(USE_MINGW64_LEADING_UNDERSCORES)
+#define SUB_LINK_ENTRY64 "-e _DllMainCRTStartup"
+#else
+#define SUB_LINK_ENTRY64 "-e DllMainCRTStartup"
+#endif
+
+#undef SUB_LINK_ENTRY
+#if TARGET_64BIT_DEFAULT
+#define SUB_LINK_ENTRY SUB_LINK_ENTRY64
+#else
+#define SUB_LINK_ENTRY SUB_LINK_ENTRY32
+#endif
+
/* Override the standard choice of /usr/include as the default prefix
to try when searching for header files. */
#undef STANDARD_INCLUDE_DIR
@@ -66,6 +82,10 @@ along with GCC; see the file COPYING3. If not see
/* Weak symbols do not get resolved if using a Windows dll import lib.
Make the unwind registration references strong undefs. */
#if DWARF2_UNWIND_INFO
+/* DW2-unwind is just available for 32-bit mode. */
+#if TARGET_64BIT_DEFAULT
+#error DW2 unwind is not available for 64-bit.
+#endif
#define SHARED_LIBGCC_UNDEFS_SPEC \
"%{shared-libgcc: -u ___register_frame_info -u ___deregister_frame_info}"
#else
@@ -81,7 +101,7 @@ along with GCC; see the file COPYING3. If not see
%{shared: %{mdll: %eshared and mdll are not compatible}} \
%{shared: --shared} %{mdll:--dll} \
%{static:-Bstatic} %{!static:-Bdynamic} \
- %{shared|mdll: -e _DllMainCRTStartup@12 --enable-auto-image-base} \
+ %{shared|mdll: " SUB_LINK_ENTRY " --enable-auto-image-base} \
%(shared_libgcc_undefs)"
/* Include in the mingw32 libraries with libgcc */
diff --git a/gcc/configure b/gcc/configure
index 0515812873d..17effdae994 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -895,6 +895,7 @@ enable_initfini_array
enable_sjlj_exceptions
with_system_libunwind
enable_secureplt
+enable_leading_mingw64_underscores
enable_cld
enable_win32_registry
enable_static
@@ -1592,6 +1593,8 @@ Optional Features:
--enable-sjlj-exceptions
arrange to use setjmp/longjmp exception handling
--enable-secureplt enable -msecure-plt by default for PowerPC
+ --enable-leading-mingw64-underscores
+ Enable leading underscores on 64 bit mingw targets
--enable-cld enable -mcld by default for 32bit x86
--disable-win32-registry
disable lookup of installation paths in the
@@ -10685,6 +10688,17 @@ if test "${enable_secureplt+set}" = set; then :
fi
+# Check whether --enable-leading-mingw64-underscores was given.
+if test "${enable_leading_mingw64_underscores+set}" = set; then :
+ enableval=$enable_leading_mingw64_underscores;
+fi
+
+if test x"$enable_leading_mingw64_underscores" = xyes ; then :
+
+$as_echo "#define USE_MINGW64_LEADING_UNDERSCORES 1" >>confdefs.h
+
+fi
+
# Check whether --enable-cld was given.
if test "${enable_cld+set}" = set; then :
enableval=$enable_cld;
@@ -17094,7 +17108,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 17097 "configure"
+#line 17111 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@@ -17200,7 +17214,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 17203 "configure"
+#line 17217 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
diff --git a/gcc/configure.ac b/gcc/configure.ac
index 67973b1fec6..cd31f4e6db8 100644
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -1568,6 +1568,14 @@ AC_ARG_ENABLE(secureplt,
[ --enable-secureplt enable -msecure-plt by default for PowerPC],
[], [])
+AC_ARG_ENABLE(leading-mingw64-underscores,
+ AS_HELP_STRING([--enable-leading-mingw64-underscores],
+ [Enable leading underscores on 64 bit mingw targets]),
+ [],[])
+AS_IF([ test x"$enable_leading_mingw64_underscores" = xyes ],
+ [AC_DEFINE(USE_MINGW64_LEADING_UNDERSCORES, 1,
+ [Define if we should use leading underscore on 64 bit mingw targets])])
+
AC_ARG_ENABLE(cld,
[ --enable-cld enable -mcld by default for 32bit x86], [],
[enable_cld=no])
diff --git a/gcc/tlink.c b/gcc/tlink.c
index 1894c6c709a..7b589832b06 100644
--- a/gcc/tlink.c
+++ b/gcc/tlink.c
@@ -32,6 +32,10 @@ along with GCC; see the file COPYING3. If not see
#include "collect2.h"
#include "libiberty.h"
+/* TARGET_64BIT may be defined to use driver specific functionality. */
+#undef TARGET_64BIT
+#define TARGET_64BIT TARGET_64BIT_DEFAULT
+
#define MAX_ITERATIONS 17
/* Defined in the automatically-generated underscore.c. */