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| author | Mark Kettenis <kettenis@gnu.org> | 2005-03-26 15:20:42 +0000 |
|---|---|---|
| committer | Mark Kettenis <kettenis@gnu.org> | 2005-03-26 15:20:42 +0000 |
| commit | c12de491fd3f736562607cab7f971817604aff00 (patch) | |
| tree | f7529453adef678d0c3565554c1a57a09f74b795 | |
| parent | 081b44e7b6a97109c48402f63e1b72b4531567db (diff) | |
| download | gdb-c12de491fd3f736562607cab7f971817604aff00.tar.gz | |
* dwarf2-frame.c (execute_cfa_program): Implement
DW_CFA_GNU_window_save.
| -rw-r--r-- | gdb/ChangeLog | 5 | ||||
| -rw-r--r-- | gdb/dwarf2-frame.c | 25 |
2 files changed, 30 insertions, 0 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 20843030743..a7b77fce82d 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,8 @@ +2005-03-26 Mark Kettenis <kettenis@gnu.org> + + * dwarf2-frame.c (execute_cfa_program): Implement + DW_CFA_GNU_window_save. + 2005-03-25 Mark Kettenis <kettenis@gnu.org> * config/sparc/nbsd64.mh (NAT_FILE): Remove. diff --git a/gdb/dwarf2-frame.c b/gdb/dwarf2-frame.c index 7b46c78dbaa..1ac18598e64 100644 --- a/gdb/dwarf2-frame.c +++ b/gdb/dwarf2-frame.c @@ -445,6 +445,31 @@ bad CFI data; mismatched DW_CFA_restore_state at 0x%s"), paddr (fs->pc)); /* cfa_how deliberately not set. */ break; + case DW_CFA_GNU_window_save: + /* This is SPARC-specific code, and contains hard-coded + constants for the register numbering scheme used by + GCC. Rather than having a architecture-specific + operation that's only ever used by a single + architecture, we provide the implementation here. + Incidentally that's what GCC does too in its + unwinder. */ + { + struct gdbarch *gdbarch = get_frame_arch (next_frame); + int size = register_size(gdbarch, 0); + dwarf2_frame_state_alloc_regs (&fs->regs, 32); + for (reg = 8; reg < 16; reg++) + { + fs->regs.reg[reg].how = DWARF2_FRAME_REG_SAVED_REG; + fs->regs.reg[reg].loc.reg = reg + 16; + } + for (reg = 16; reg < 32; reg++) + { + fs->regs.reg[reg].how = DWARF2_FRAME_REG_SAVED_OFFSET; + fs->regs.reg[reg].loc.offset = (reg - 16) * size; + } + } + break; + case DW_CFA_GNU_args_size: /* Ignored. */ insn_ptr = read_uleb128 (insn_ptr, insn_end, &utmp); |