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| author | Alan Modra <amodra@bigpond.net.au> | 2005-06-01 00:30:26 +0000 |
|---|---|---|
| committer | Alan Modra <amodra@gcc.gnu.org> | 2005-06-01 10:00:26 +0930 |
| commit | 7f970b709293482a5ce87bb4f01a765aae831a26 (patch) | |
| tree | a43884596f7b3725ff1193f949aede640e008d89 /gcc/config/rs6000/tramp.asm | |
| parent | d2348bd59174b5f3c5c492da6190f80c3f6d745b (diff) | |
| download | gcc-7f970b709293482a5ce87bb4f01a765aae831a26.zip gcc-7f970b709293482a5ce87bb4f01a765aae831a26.tar.gz gcc-7f970b709293482a5ce87bb4f01a765aae831a26.tar.bz2 | |
configure.ac: Add --enable-secureplt.
* 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.
From-SVN: r100415
Diffstat (limited to 'gcc/config/rs6000/tramp.asm')
| -rw-r--r-- | gcc/config/rs6000/tramp.asm | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/gcc/config/rs6000/tramp.asm b/gcc/config/rs6000/tramp.asm index 284f938..0c6127d 100644 --- a/gcc/config/rs6000/tramp.asm +++ b/gcc/config/rs6000/tramp.asm @@ -44,7 +44,7 @@ .align 2 trampoline_initial: mflr r0 - bl 1f + bcl 20,31,1f .Lfunc = .-trampoline_initial .long 0 /* will be replaced with function address */ .Lchain = .-trampoline_initial @@ -67,7 +67,7 @@ trampoline_size = .-trampoline_initial FUNC_START(__trampoline_setup) mflr r0 /* save return address */ - bl .LCF0 /* load up __trampoline_initial into r7 */ + bcl 20,31,.LCF0 /* load up __trampoline_initial into r7 */ .LCF0: mflr r11 addi r7,r11,trampoline_initial-4-.LCF0 /* trampoline address -4 */ @@ -105,6 +105,12 @@ FUNC_START(__trampoline_setup) blr .Labort: +#if defined SHARED && defined HAVE_AS_REL16 + bcl 20,31,1f +1: mflr r30 + addis r30,r30,_GLOBAL_OFFSET_TABLE_-1b@ha + addi r30,r30,_GLOBAL_OFFSET_TABLE_-1b@l +#endif bl JUMP_TARGET(abort) FUNC_END(__trampoline_setup) |