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defaults.h: (DWARF_REG_TO_UNWIND_COLUMN): Define default.

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2014-12-05  Olivier Hainque  <hainque@adacore.com>

        gcc/
        * defaults.h: (DWARF_REG_TO_UNWIND_COLUMN): Define default.
        * dwarf2cfi.c (init_one_dwarf_reg_size): Honor
        DWARF_REG_TO_UNWIND_COLUMN.

        libgcc/
        * unwind-dw2.c (DWARF_REG_TO_UNWIND_COLUMN): Remove default def,
        now provided by defaults.h.

From-SVN: r218429
This commit is contained in:
Olivier Hainque 2014-12-05 17:01:42 +00:00 committed by Olivier Hainque
parent edbbaf3b1b
commit a66272f6d2
5 changed files with 18 additions and 5 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2014-12-05 Olivier Hainque <hainque@adacore.com>
* defaults.h: (DWARF_REG_TO_UNWIND_COLUMN): Define default.
* dwarf2cfi.c (init_one_dwarf_reg_size): Honor
DWARF_REG_TO_UNWIND_COLUMN.
2014-12-05 Olivier Hainque <hainque@adacore.com>
* dwarf2cfi.c (init_one_dwarf_reg_size): New helper, processing

5
gcc/defaults.h
View File

@ -438,6 +438,11 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
#define DWARF_FRAME_REGNUM(REG) DBX_REGISTER_NUMBER (REG)
#endif
/* The mapping from dwarf CFA reg number to internal dwarf reg numbers. */
#ifndef DWARF_REG_TO_UNWIND_COLUMN
#define DWARF_REG_TO_UNWIND_COLUMN(REGNO) (REGNO)
#endif
/* Map register numbers held in the call frame info that gcc has
collected using DWARF_FRAME_REGNUM to those that should be output in
.debug_frame and .eh_frame. */

3
gcc/dwarf2cfi.c
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@ -286,8 +286,9 @@ void init_one_dwarf_reg_size (int regno, machine_mode regmode,
{
const unsigned int dnum = DWARF_FRAME_REGNUM (regno);
const unsigned int rnum = DWARF2_FRAME_REG_OUT (dnum, 1);
const unsigned int dcol = DWARF_REG_TO_UNWIND_COLUMN (rnum);
const HOST_WIDE_INT slotoffset = rnum * GET_MODE_SIZE (slotmode);
const HOST_WIDE_INT slotoffset = dcol * GET_MODE_SIZE (slotmode);
const HOST_WIDE_INT regsize = GET_MODE_SIZE (regmode);
init_state->processed_regno[regno] = true;

5
libgcc/ChangeLog
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@ -1,3 +1,8 @@
2014-12-05 Olivier Hainque <hainque@adacore.com>
* unwind-dw2.c (DWARF_REG_TO_UNWIND_COLUMN): Remove default def,
now provided by defaults.h.
2014-11-30 Oleg Endo <olegendo@gcc.gnu.org>
* config/sh/lib1funcs.S: Check value of __SHMEDIA__ instead of checking

4
libgcc/unwind-dw2.c
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@ -55,10 +55,6 @@
#define PRE_GCC3_DWARF_FRAME_REGISTERS __LIBGCC_DWARF_FRAME_REGISTERS__
#endif
#ifndef DWARF_REG_TO_UNWIND_COLUMN
#define DWARF_REG_TO_UNWIND_COLUMN(REGNO) (REGNO)
#endif
/* ??? For the public function interfaces, we tend to gcc_assert that the
column numbers are in range. For the dwarf2 unwind info this does happen,
although so far in a case that doesn't actually matter.