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| author | H.J. Lu <hongjiu.lu@intel.com> | 2011-08-08 13:26:06 +0000 |
|---|---|---|
| committer | H.J. Lu <hjl@gcc.gnu.org> | 2011-08-08 06:26:06 -0700 |
| commit | cca2207a2dedd90d904e15094e02df0529daacd0 (patch) | |
| tree | bede109f33fbea8f1ab9d058c05444a8addae8ba /libgcc/config/i386/value-unwind.h | |
| parent | b6ee5bef6e5105339c907c68e1885971a8c0c500 (diff) | |
| download | gcc-cca2207a2dedd90d904e15094e02df0529daacd0.tar.gz | |
Fix Dwarf unwind library for UNITS_PER_WORD > sizeof (void *)
gcc/
2011-08-08 H.J. Lu <hongjiu.lu@intel.com>
PR other/48007
* config.gcc (libgcc_tm_file): Add i386/value-unwind.h for
Linux/x86.
* system.h (REG_VALUE_IN_UNWIND_CONTEXT): Poisoned.
(ASSUME_EXTENDED_UNWIND_CONTEXT): Likewise.
* unwind-dw2.c (ASSUME_EXTENDED_UNWIND_CONTEXT): New.
(_Unwind_Context_Reg_Val): Likewise.
(_Unwind_Get_Unwind_Word): Likewise.
(_Unwind_Get_Unwind_Context_Reg_Val): Likewise.
(_Unwind_Context): Use _Unwind_Context_Reg_Val on the reg field.
(_Unwind_IsExtendedContext): Check ASSUME_EXTENDED_UNWIND_CONTEXT
for EXTENDED_CONTEXT_BIT.
(__frame_state_for): Likewise.
(uw_init_context_1): Likewise.
(_Unwind_GetGR): Updated.
(_Unwind_SetGR): Likewise.
(_Unwind_GetGRPtr): Likewise.
(_Unwind_SetGRPtr): Likewise.
(_Unwind_SetGRValue): Likewise.
(_Unwind_GRByValue): Likewise.
(uw_install_context_1): Likewise.
* doc/tm.texi.in: Document REG_VALUE_IN_UNWIND_CONTEXT and
ASSUME_EXTENDED_UNWIND_CONTEXT.
* doc/tm.texi: Regenerated.
libgcc/
2011-08-08 H.J. Lu <hongjiu.lu@intel.com>
PR other/48007
* config/i386/value-unwind.h: New.
From-SVN: r177563
Diffstat (limited to 'libgcc/config/i386/value-unwind.h')
| -rw-r--r-- | libgcc/config/i386/value-unwind.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/libgcc/config/i386/value-unwind.h b/libgcc/config/i386/value-unwind.h new file mode 100644 index 00000000000..0dceb5c85c6 --- /dev/null +++ b/libgcc/config/i386/value-unwind.h @@ -0,0 +1,26 @@ +/* Store register values as _Unwind_Word type in DWARF2 EH unwind context. + Copyright (C) 2011 + Free Software Foundation, Inc. + + This file is part of GCC. + + GCC is free software; you can redistribute it and/or modify it + under the terms of the GNU General Public License as published + by the Free Software Foundation; either version 3, or (at your + option) any later version. + + GCC is distributed in the hope that it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public + License for more details. + + You should have received a copy of the GNU General Public License and + a copy of the GCC Runtime Library Exception along with this program; + see the files COPYING3 and COPYING.RUNTIME respectively. If not, see + <http://www.gnu.org/licenses/>. */ + +/* Define this macro if the target stores register values as _Unwind_Word + type in unwind context. Only enable it for x32. */ +#if defined __x86_64 && !defined __LP64__ +# define REG_VALUE_IN_UNWIND_CONTEXT +#endif |