OBS User unknown 2007-03-15 18:13:26 +00:00 committed by Git OBS Bridge
parent baf2d99d3d
commit cff68223e0
3 changed files with 70 additions and 1 deletions

60
altivec-regs.diff Normal file
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@ -0,0 +1,60 @@
2007-03-15 Andreas Schwab <schwab@suse.de>
* ppc-linux-tdep.c (ppc_linux_return_value): Vectors are returned
in general registers.
--- gdb/ppc-linux-tdep.c
+++ gdb/ppc-linux-tdep.c
@@ -484,17 +484,47 @@
/* For historic reasons, PPC 32 GNU/Linux follows PowerOpen rather
than the 32 bit SYSV R4 ABI structure return convention - all
structures, no matter their size, are put in memory. Vectors,
- which were added later, do get returned in a register though. */
+ which were added later, do get returned in a register, although
+ not in an AltiVec register. */
static enum return_value_convention
ppc_linux_return_value (struct gdbarch *gdbarch, struct type *valtype,
struct regcache *regcache, gdb_byte *readbuf,
const gdb_byte *writebuf)
{
- if ((TYPE_CODE (valtype) == TYPE_CODE_STRUCT
- || TYPE_CODE (valtype) == TYPE_CODE_UNION)
- && !((TYPE_LENGTH (valtype) == 16 || TYPE_LENGTH (valtype) == 8)
- && TYPE_VECTOR (valtype)))
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+
+ if (TYPE_LENGTH (valtype) == 16
+ && TYPE_CODE (valtype) == TYPE_CODE_ARRAY
+ && TYPE_VECTOR (valtype))
+ {
+ /* Return value is in r3-r6. */
+ if (readbuf)
+ {
+ regcache_cooked_read (regcache, tdep->ppc_gp0_regnum + 3,
+ readbuf + 0);
+ regcache_cooked_read (regcache, tdep->ppc_gp0_regnum + 4,
+ readbuf + 4);
+ regcache_cooked_read (regcache, tdep->ppc_gp0_regnum + 5,
+ readbuf + 8);
+ regcache_cooked_read (regcache, tdep->ppc_gp0_regnum + 6,
+ readbuf + 12);
+ }
+ if (writebuf)
+ {
+ regcache_cooked_write (regcache, tdep->ppc_gp0_regnum + 3,
+ writebuf + 0);
+ regcache_cooked_write (regcache, tdep->ppc_gp0_regnum + 4,
+ writebuf + 4);
+ regcache_cooked_write (regcache, tdep->ppc_gp0_regnum + 5,
+ writebuf + 8);
+ regcache_cooked_write (regcache, tdep->ppc_gp0_regnum + 6,
+ writebuf + 12);
+ }
+ return RETURN_VALUE_REGISTER_CONVENTION;
+ }
+ else if (TYPE_CODE (valtype) == TYPE_CODE_STRUCT
+ || TYPE_CODE (valtype) == TYPE_CODE_UNION)
return RETURN_VALUE_STRUCT_CONVENTION;
else
return ppc_sysv_abi_return_value (gdbarch, valtype, regcache, readbuf,

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@ -1,3 +1,8 @@
-------------------------------------------------------------------
Thu Mar 15 18:22:31 CET 2007 - schwab@suse.de
- Fix altivec vector return location [#250004].
-------------------------------------------------------------------
Mon Mar 12 18:07:07 CET 2007 - schwab@suse.de

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@ -21,7 +21,7 @@ Group: Development/Tools/Debuggers
Autoreqprov: on
PreReq: %{install_info_prereq}
Version: 6.6
Release: 18
Release: 20
Summary: The GNU Debugger
Source: gdb-%{version}.tar.bz2
Patch1: gdb-misc.patch
@ -41,6 +41,7 @@ Patch16: pc-regnum.diff
Patch17: show-endian.diff
Patch18: elf-symtab-read.diff
Patch19: atomic-single-step.diff
Patch20: altivec-regs.diff
BuildRoot: %{_tmppath}/%{name}-%{version}-build
%description
@ -92,6 +93,7 @@ cd ..
cd gdb
%patch19
cd ..
%patch20
%build
CFLAGS="$RPM_OPT_FLAGS" \
@ -147,6 +149,8 @@ rm -rf $RPM_BUILD_ROOT
%endif
%changelog
* Thu Mar 15 2007 - schwab@suse.de
- Fix altivec vector return location [#250004].
* Mon Mar 12 2007 - schwab@suse.de
- Update ppc DWARF patch to also handle broken debug info from old
compilers.