[Bug other/48007] [x32] Unwind library doesn't work with UNITS_PER_WORD > sizeof (void *)

[hjl at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48007

--- Comment #5 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> 2011-08-08 
13:26:10 UTC ---
Author: hjl
Date: Mon Aug  8 13:26:06 2011
New Revision: 177563

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=177563
Log:
Fix Dwarf unwind library for UNITS_PER_WORD > sizeof (void *)

gcc/

2011-08-08  H.J. Lu  <hongjiu...@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...@intel.com>

    PR other/48007
    * config/i386/value-unwind.h: New.

Added:
    trunk/libgcc/config/i386/value-unwind.h
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config.gcc
    trunk/gcc/doc/tm.texi
    trunk/gcc/doc/tm.texi.in
    trunk/gcc/system.h
    trunk/libgcc/ChangeLog
    trunk/libgcc/unwind-dw2.c