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| author | amodra <amodra@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-06-01 00:30:26 +0000 |
|---|---|---|
| committer | amodra <amodra@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-06-01 00:30:26 +0000 |
| commit | 197f58fac938c5c4478231d8003942e89c1a439e (patch) | |
| tree | a43884596f7b3725ff1193f949aede640e008d89 /gcc/configure.ac | |
| parent | 0663398065295b8b03266c3f4a1df130d6bdf712 (diff) | |
| download | gcc-197f58fac938c5c4478231d8003942e89c1a439e.tar.gz | |
* configure.ac: Add --enable-secureplt.
(HAVE_AS_REL16): Test for R_PPC_REL16 relocs.
* config.in: Regenerate.
* configure: Regenerate.
* config.gcc (powerpc64-*-linux*, powerpc-*-linux*): Add
rs6000/secureplt.h to tm_file when enable_secureplt.
* doc/invoke.texi (msecure-plt, mbss-plt): Document.
* doc/install.texi: Document --enable-targets and --enable-secureplt.
Correct xrefs to "Using the GNU Compiler Collection (GCC)".
* config/rs6000/secureplt.h: New file.
* config/rs6000/sysv4.h (TARGET_SECURE_PLT): Define.
(SUBTARGET_OVERRIDE_OPTIONS): Error if -msecure-plt given without
assembler support.
(CC1_SECURE_PLT_DEFAULT_SPEC): Define.
(CC1_SPEC): Delete duplicate mno-sdata. Invoke cc1_secure_plt_default.
(SUBTARGET_EXTRA_SPECS): Add cc1_secure_plt_default.
* config/rs6000/sysv4.opt (msecure-plt, bss-plt): Add options.
* config/rs6000/rs6000.h (TARGET_SECURE_PLT): Define.
* config/rs6000/rs6000.c (rs6000_emit_load_toc_table): Handle
TARGET_SECURE_PLT got register load sequence.
(rs6000_emit_prologue): Call rs6000_emit_load_toc_table when
TARGET_SECURE_PLT.
(rs6000_elf_declare_function_name): Don't emit toc address offset
word when TARGET_SECURE_PLT.
* config/rs6000/rs6000.md (elf_high, elf_low): Move past load_toc_*.
(load_toc_v4_PIC_1) Enable for TARGET_SECURE_PLT.
(load_toc_v4_PIC_3b, load_toc_v4_PIC_3c): New insns.
(call, call_value): Mark pic_offset_table_rtx used for sysv pic and
TARGET_SECURE_PLT.
(call_nonlocal_sysv, call_value_nonlocal_sysv, sibcall_nonlocal_sysv,
sibcall_value_nonlocal_sysv): Add 32768 offset when TARGET_SECURE_PLT
and -fPIC.
* config/rs6000/tramp.asm (trampoline_initial): Use "bcl 20,31".
(__trampoline_setup): Likewise. Init r30 before plt call.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@100415 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/configure.ac')
| -rw-r--r-- | gcc/configure.ac | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/gcc/configure.ac b/gcc/configure.ac index b853c142483..fd1476c05e3 100644 --- a/gcc/configure.ac +++ b/gcc/configure.ac @@ -1441,6 +1441,10 @@ case "$LIBINTL" in *$LIBICONV*) LIBICONV= ;; esac +AC_ARG_ENABLE(secureplt, +[ --enable-secureplt enable -msecure-plt by default for PowerPC], +[], []) + # Windows32 Registry support for specifying GCC installation paths. AC_ARG_ENABLE(win32-registry, [ --disable-win32-registry @@ -2822,6 +2826,24 @@ foo: nop [AC_DEFINE(HAVE_AS_POPCNTB, 1, [Define if your assembler supports popcntb field.])]) + case $target in + *-*-aix*) conftest_s=' .csect .text[[PR]] +LCF..0: + addis 11,30,_GLOBAL_OFFSET_TABLE_-LCF..0@ha';; + *-*-darwin*) + conftest_s=' .text +LCF0: + addis r11,r30,_GLOBAL_OFFSET_TABLE_-LCF0@ha';; + *) conftest_s=' .text +.LCF0: + addis 11,30,_GLOBAL_OFFSET_TABLE_-.LCF0@ha';; + esac + + gcc_GAS_CHECK_FEATURE([rel16 relocs], + gcc_cv_as_powerpc_rel16, [2,17,0], -a32, + [$conftest_s],, + [AC_DEFINE(HAVE_AS_REL16, 1, + [Define if your assembler supports R_PPC_REL16 relocs.])]) ;; mips*-*-*) |