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- make ppc32 TLS PIC code sequences compatible with secure plt (#184446)

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(Richard Henderson and myself)
This commit is contained in:
aoliva 2006-03-09 23:09:49 +00:00
parent ba74288e4e
commit 417da0080c
2 changed files with 51 additions and 1 deletions
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44
gcc41-rh184446.patch Normal file
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@ -0,0 +1,44 @@
for gcc/ChangeLog
from Richard Henderson <rth@redhat.com>, Alexandre Oliva <aoliva@redhat.com>
* config/rs6000/rs6000.c (rs6000_legitimize_tls_address): Use
secure-plt load sequence to compute the GOT address for -fPIC
-msecure-plt.
Index: gcc/config/rs6000/rs6000.c
===================================================================
--- gcc/config/rs6000/rs6000.c.orig 2006-03-09 20:02:13.000000000 -0300
+++ gcc/config/rs6000/rs6000.c 2006-03-09 20:02:31.000000000 -0300
@@ -3094,10 +3094,28 @@ rs6000_legitimize_tls_address (rtx addr,
tmp3 = gen_reg_rtx (Pmode);
mem = gen_const_mem (Pmode, tmp1);
- first = emit_insn (gen_load_toc_v4_PIC_1b (tempLR, gsym));
- emit_move_insn (tmp1, tempLR);
- emit_move_insn (tmp2, mem);
- emit_insn (gen_addsi3 (tmp3, tmp1, tmp2));
+ if (TARGET_SECURE_PLT)
+ {
+ char buf[30];
+ rtx l;
+
+ ASM_GENERATE_INTERNAL_LABEL (buf, "LCF",
+ rs6000_pic_labelno++);
+ l = gen_rtx_SYMBOL_REF (Pmode, ggc_strdup (buf));
+
+ first = emit_insn (gen_load_toc_v4_PIC_1 (tempLR, l));
+ emit_move_insn (tmp1, tempLR);
+ emit_insn (gen_load_toc_v4_PIC_3b (tmp2, tmp1, gsym, l));
+ emit_insn (gen_load_toc_v4_PIC_3c (tmp3, tmp2, gsym, l));
+ }
+ else
+ {
+ first = emit_insn (gen_load_toc_v4_PIC_1b (tempLR, gsym));
+ emit_move_insn (tmp1, tempLR);
+ emit_move_insn (tmp2, mem);
+ emit_insn (gen_addsi3 (tmp3, tmp1, tmp2));
+ }
+
last = emit_move_insn (got, tmp3);
REG_NOTES (last) = gen_rtx_EXPR_LIST (REG_EQUAL, gsym,
REG_NOTES (last));

8
gcc41.spec
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@ -1,6 +1,6 @@
%define DATE 20060304
%define gcc_version 4.1.0
%define gcc_release 2
%define gcc_release 3
%define _unpackaged_files_terminate_build 0
%define multilib_64_archs sparc64 ppc64 s390x x86_64
%ifarch %{ix86} x86_64 ia64
@ -107,6 +107,7 @@ Patch9: gcc41-ppc32-retaddr.patch
Patch10: gcc41-x86_64-sse3.patch
Patch11: gcc41-mni.patch
Patch12: gcc41-cfaval.patch
Patch13: gcc41-rh184446.patch
%define _gnu %{nil}
%ifarch sparc
@ -398,6 +399,7 @@ which are required to run programs compiled with the GNAT.
%patch10 -p0 -b .x86_64-sse3~
%patch11 -p0 -b .mni~
%patch12 -p0 -b .cfaval~
%patch13 -p0 -b .rh184446~
sed -i -e 's/4\.1\.1/4.1.0/' gcc/BASE-VER gcc/version.c
sed -i -e 's/" (Red Hat[^)]*)"/" (Red Hat %{version}-%{gcc_release})"/' gcc/version.c
@ -1415,6 +1417,10 @@ fi
%doc rpm.doc/changelogs/libmudflap/ChangeLog*
%changelog
* Thu Mar 9 2006 Alexandre Oliva <aoliva@redhat.com> 4.1.0-3
- make ppc32 TLS PIC code sequences compatible with secure plt (#184446)
(Richard Henderson and myself)
* Sat Mar 4 2006 Jakub Jelinek <jakub@redhat.com> 4.1.0-2
- update from -gcc-4_1-branch (-r111570:111697)
- PRs c++/26291, libgfortran/26136, libgfortran/26423, libgfortran/26464,