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| author | Alan Modra <amodra@bigpond.net.au> | 2004-01-20 22:29:24 +0000 |
|---|---|---|
| committer | Alan Modra <amodra@gcc.gnu.org> | 2004-01-21 08:59:24 +1030 |
| commit | 34c80057fcd1c1019fa93f44483842e1d1c9cc55 (patch) | |
| tree | 92a413817c8bb86d3351646e048b5b3145798b76 /gcc/dwarf2out.c | |
| parent | a42952105e3bbc56a74773323f81bf23bd7e5ba1 (diff) | |
| download | gcc-34c80057fcd1c1019fa93f44483842e1d1c9cc55.zip gcc-34c80057fcd1c1019fa93f44483842e1d1c9cc55.tar.gz gcc-34c80057fcd1c1019fa93f44483842e1d1c9cc55.tar.bz2 | |
sysv4.h (DWARF2_FRAME_REG_OUT): Define.
* config/rs6000/sysv4.h (DWARF2_FRAME_REG_OUT): Define.
* dwarf2out.c (output_cfi): Map regs using DWARF2_FRAME_REG_OUT.
* doc/tm.texi (DWARF_FRAME_REGNUM, DWARF2_FRAME_REG_OUT): Document.
From-SVN: r76235
Diffstat (limited to 'gcc/dwarf2out.c')
| -rw-r--r-- | gcc/dwarf2out.c | 46 |
1 files changed, 27 insertions, 19 deletions
diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c index 51c0f1c..7dca634 100644 --- a/gcc/dwarf2out.c +++ b/gcc/dwarf2out.c @@ -1790,11 +1790,19 @@ dw_cfi_oprnd2_desc (enum dwarf_call_frame_info cfi) #if defined (DWARF2_DEBUGGING_INFO) || defined (DWARF2_UNWIND_INFO) +/* 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. */ +#ifndef DWARF2_FRAME_REG_OUT +#define DWARF2_FRAME_REG_OUT(REGNO, FOR_EH) (REGNO) +#endif + /* Output a Call Frame Information opcode and its operand(s). */ static void output_cfi (dw_cfi_ref cfi, dw_fde_ref fde, int for_eh) { + unsigned long r; if (cfi->dw_cfi_opc == DW_CFA_advance_loc) dw2_asm_output_data (1, (cfi->dw_cfi_opc | (cfi->dw_cfi_oprnd1.dw_cfi_offset & 0x3f)), @@ -1802,17 +1810,17 @@ output_cfi (dw_cfi_ref cfi, dw_fde_ref fde, int for_eh) cfi->dw_cfi_oprnd1.dw_cfi_offset); else if (cfi->dw_cfi_opc == DW_CFA_offset) { - dw2_asm_output_data (1, (cfi->dw_cfi_opc - | (cfi->dw_cfi_oprnd1.dw_cfi_reg_num & 0x3f)), - "DW_CFA_offset, column 0x%lx", - cfi->dw_cfi_oprnd1.dw_cfi_reg_num); + r = DWARF2_FRAME_REG_OUT (cfi->dw_cfi_oprnd1.dw_cfi_reg_num, for_eh); + dw2_asm_output_data (1, (cfi->dw_cfi_opc | (r & 0x3f)), + "DW_CFA_offset, column 0x%lx", r); dw2_asm_output_data_uleb128 (cfi->dw_cfi_oprnd2.dw_cfi_offset, NULL); } else if (cfi->dw_cfi_opc == DW_CFA_restore) - dw2_asm_output_data (1, (cfi->dw_cfi_opc - | (cfi->dw_cfi_oprnd1.dw_cfi_reg_num & 0x3f)), - "DW_CFA_restore, column 0x%lx", - cfi->dw_cfi_oprnd1.dw_cfi_reg_num); + { + r = DWARF2_FRAME_REG_OUT (cfi->dw_cfi_oprnd1.dw_cfi_reg_num, for_eh); + dw2_asm_output_data (1, (cfi->dw_cfi_opc | (r & 0x3f)), + "DW_CFA_restore, column 0x%lx", r); + } else { dw2_asm_output_data (1, cfi->dw_cfi_opc, @@ -1857,15 +1865,15 @@ output_cfi (dw_cfi_ref cfi, dw_fde_ref fde, int for_eh) case DW_CFA_offset_extended: case DW_CFA_def_cfa: - dw2_asm_output_data_uleb128 (cfi->dw_cfi_oprnd1.dw_cfi_reg_num, - NULL); + r = DWARF2_FRAME_REG_OUT (cfi->dw_cfi_oprnd1.dw_cfi_reg_num, for_eh); + dw2_asm_output_data_uleb128 (r, NULL); dw2_asm_output_data_uleb128 (cfi->dw_cfi_oprnd2.dw_cfi_offset, NULL); break; case DW_CFA_offset_extended_sf: case DW_CFA_def_cfa_sf: - dw2_asm_output_data_uleb128 (cfi->dw_cfi_oprnd1.dw_cfi_reg_num, - NULL); + r = DWARF2_FRAME_REG_OUT (cfi->dw_cfi_oprnd1.dw_cfi_reg_num, for_eh); + dw2_asm_output_data_uleb128 (r, NULL); dw2_asm_output_data_sleb128 (cfi->dw_cfi_oprnd2.dw_cfi_offset, NULL); break; @@ -1873,15 +1881,15 @@ output_cfi (dw_cfi_ref cfi, dw_fde_ref fde, int for_eh) case DW_CFA_undefined: case DW_CFA_same_value: case DW_CFA_def_cfa_register: - dw2_asm_output_data_uleb128 (cfi->dw_cfi_oprnd1.dw_cfi_reg_num, - NULL); + r = DWARF2_FRAME_REG_OUT (cfi->dw_cfi_oprnd1.dw_cfi_reg_num, for_eh); + dw2_asm_output_data_uleb128 (r, NULL); break; case DW_CFA_register: - dw2_asm_output_data_uleb128 (cfi->dw_cfi_oprnd1.dw_cfi_reg_num, - NULL); - dw2_asm_output_data_uleb128 (cfi->dw_cfi_oprnd2.dw_cfi_reg_num, - NULL); + r = DWARF2_FRAME_REG_OUT (cfi->dw_cfi_oprnd1.dw_cfi_reg_num, for_eh); + dw2_asm_output_data_uleb128 (r, NULL); + r = DWARF2_FRAME_REG_OUT (cfi->dw_cfi_oprnd2.dw_cfi_reg_num, for_eh); + dw2_asm_output_data_uleb128 (r, NULL); break; case DW_CFA_def_cfa_offset: @@ -1911,7 +1919,7 @@ output_cfi (dw_cfi_ref cfi, dw_fde_ref fde, int for_eh) } } -/* Output the call frame information used to used to record information +/* Output the call frame information used to record information that relates to calculating the frame pointer, and records the location of saved registers. */ |