diff options
| author | Jakub Jelinek <jakub@redhat.com> | 2007-10-22 02:00:06 +0000 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2007-10-22 02:00:06 +0000 |
| commit | 95b76f885b92da85c3ad9164844344598b401e60 (patch) | |
| tree | a9912d08e3ab122763b939255650f642238d3677 | |
| parent | 1b2393ec9983be7d9f8547c74bce8999509c601c (diff) | |
* config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Point
saved CR2 offset to low 32 bits of regs->ccr rather than the whole
64-bit register in 64-bit libgcc.
git-svn-id: https://gcc.gnu.org/svn/gcc/branches/gcc-4_1-branch@129547 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/rs6000/linux-unwind.h | 5 |
2 files changed, 10 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 03142ec03d7..bacaff70f43 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2007-10-20 Jakub Jelinek <jakub@redhat.com> + + * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Point + saved CR2 offset to low 32 bits of regs->ccr rather than the whole + 64-bit register in 64-bit libgcc. + 2007-09-23 H.J. Lu <hongjiu.lu@intel.com> * configure.ac (ld_vers): Support GNU linker version xx.xx.* diff --git a/gcc/config/rs6000/linux-unwind.h b/gcc/config/rs6000/linux-unwind.h index 6e822bde0e2..3e931030d59 100644 --- a/gcc/config/rs6000/linux-unwind.h +++ b/gcc/config/rs6000/linux-unwind.h @@ -264,7 +264,10 @@ ppc_fallback_frame_state (struct _Unwind_Context *context, } fs->regs.reg[CR2_REGNO].how = REG_SAVED_OFFSET; - fs->regs.reg[CR2_REGNO].loc.offset = (long) ®s->ccr - new_cfa; + /* CR? regs are always 32-bit and PPC is big-endian, so in 64-bit + libgcc loc.offset needs to point to the low 32 bits of regs->ccr. */ + fs->regs.reg[CR2_REGNO].loc.offset = (long) ®s->ccr - new_cfa + + sizeof (long) - 4; fs->regs.reg[LINK_REGISTER_REGNUM].how = REG_SAVED_OFFSET; fs->regs.reg[LINK_REGISTER_REGNUM].loc.offset = (long) ®s->link - new_cfa; |