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| author | Ulrich Weigand <uweigand@de.ibm.com> | 2013-11-14 18:25:33 +0000 |
|---|---|---|
| committer | Ulrich Weigand <uweigand@gcc.gnu.org> | 2013-11-14 18:25:33 +0000 |
| commit | 13e0981af51244eef62156d1e7c4810e87d616da (patch) | |
| tree | 74200d0b4259405c2cca7263eddb8bb6115ee078 | |
| parent | dc2faee140907409050417fc38004d94dd40ed22 (diff) | |
| download | gcc-13e0981af51244eef62156d1e7c4810e87d616da.zip gcc-13e0981af51244eef62156d1e7c4810e87d616da.tar.gz gcc-13e0981af51244eef62156d1e7c4810e87d616da.tar.bz2 | |
linux-unwind.h (ppc_fallback_frame_state): Correct location of CR save area for 64-bit little-endian systems.
2013-11-14 Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
Alan Modra <amodra@gmail.com>
* config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Correct
location of CR save area for 64-bit little-endian systems.
Co-Authored-By: Alan Modra <amodra@gmail.com>
From-SVN: r204800
| -rw-r--r-- | libgcc/ChangeLog | 6 | ||||
| -rw-r--r-- | libgcc/config/rs6000/linux-unwind.h | 11 |
2 files changed, 13 insertions, 4 deletions
diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog index 81556a3..ba72c24 100644 --- a/libgcc/ChangeLog +++ b/libgcc/ChangeLog @@ -1,3 +1,9 @@ +2013-11-14 Ulrich Weigand <Ulrich.Weigand@de.ibm.com> + Alan Modra <amodra@gmail.com> + + * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Correct + location of CR save area for 64-bit little-endian systems. + 2013-11-11 Eric Botcazou <ebotcazou@adacore.com> * config.host (arm-wrs-vxworks): Replace arm/t-vxworks with arm/t-elf diff --git a/libgcc/config/rs6000/linux-unwind.h b/libgcc/config/rs6000/linux-unwind.h index c9273c4..c481e06 100644 --- a/libgcc/config/rs6000/linux-unwind.h +++ b/libgcc/config/rs6000/linux-unwind.h @@ -185,6 +185,7 @@ ppc_fallback_frame_state (struct _Unwind_Context *context, { struct gcc_regs *regs = get_regs (context); struct gcc_vregs *vregs; + long cr_offset; long new_cfa; int i; @@ -206,11 +207,13 @@ ppc_fallback_frame_state (struct _Unwind_Context *context, fs->regs.reg[i].loc.offset = (long) ®s->gpr[i] - new_cfa; } + /* The CR is saved in the low 32 bits of regs->ccr. */ + cr_offset = (long) ®s->ccr - new_cfa; +#ifndef __LITTLE_ENDIAN__ + cr_offset += sizeof (long) - 4; +#endif fs->regs.reg[R_CR2].how = REG_SAVED_OFFSET; - /* 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[R_CR2].loc.offset = (long) ®s->ccr - new_cfa - + sizeof (long) - 4; + fs->regs.reg[R_CR2].loc.offset = cr_offset; fs->regs.reg[R_LR].how = REG_SAVED_OFFSET; fs->regs.reg[R_LR].loc.offset = (long) ®s->link - new_cfa; |