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| author | Richard Henderson <rth@redhat.com> | 2010-10-31 17:40:33 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2010-10-31 17:40:33 -0700 |
| commit | f81c97740380165364d4af23c706f010c74e2609 (patch) | |
| tree | c5201d7da44fc0f1911791bc4f786c53bbdb15f3 /gcc/dwarf2out.c | |
| parent | b83905048722120272297c58e981a1a7a0d3460b (diff) | |
| download | gcc-f81c97740380165364d4af23c706f010c74e2609.zip gcc-f81c97740380165364d4af23c706f010c74e2609.tar.gz gcc-f81c97740380165364d4af23c706f010c74e2609.tar.bz2 | |
Emit SEH unwind info.
* config/i386/cygming.h (TARGET_SEH): New.
(MAX_STACK_ALIGNMENT): New. Disable alignment for SEH.
(TARGET_ASM_UNWIND_EMIT, TARGET_ASM_UNWIND_EMIT_BEFORE_INSN,
TARGET_ASM_FUNCTION_END_PROLOGUE, SUBTARGET_ASM_UNWIND_INIT): New.
(TARGET_OS_CPP_BUILTINS): Define __SEH__ as needed.
(ASM_DECLARE_FUNCTION_NAME): Use i386_pe_start_function.
(ASM_DECLARE_FUNCTION_SIZE): New.
* config/i386/i386-protos.h: Update.
* config/i386/i386.c (ix86_option_override_internal): Enable
flag_unwind_tables with flag_asynchronous_unwind_tables immediately;
restrict -mpreferred-stack-boundary for SEH; enable flag_fentry.
(ix86_asm_output_function_label): Use SUBTARGET_ASM_UNWIND_INIT.
(ix86_compute_frame_layout): For SEH, disable
use_fast_prologue_epilogue, move frame pointer to the end of
the frame. Initialize hfp_save_offset.
(ix86_expand_prologue): Honor hfp_save_offset. Emit blockage
at end of prologue for SEH.
(ix86_expand_epilogue): For SEH, use pops, emit a nop if needed,
emit blockage at beginning of epilogue.
(ix86_expand_binary_operator): After reload, emit LEA if needed.
(ix86_output_call_insn): New.
* config/i386/i386.h (TARGET_SEH): New.
(struct machine_function): Add member seh.
* config/i386/i386.md (all call patterns): Use ix86_output_call_insn.
* config/i386/winnt.c (struct seh_frame_state): New.
(i386_pe_seh_init, i386_pe_seh_end_prologue, i386_pe_seh_fini,
seh_emit_push, seh_emit_save, seh_emit_stackalloc, seh_cfa_adjust_cfa,
seh_cfa_offset, seh_frame_related_expr, i386_pe_seh_unwind_emit,
i386_pe_start_function, i386_pe_end_function): New.
* dwarf2out.c (dwarf2out_frame_debug_expr): Accept CFA as well
as CFA_STORE in rules 12 and 13.
From-SVN: r166119
Diffstat (limited to 'gcc/dwarf2out.c')
| -rw-r--r-- | gcc/dwarf2out.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c index bf248dc..9209c0d 100644 --- a/gcc/dwarf2out.c +++ b/gcc/dwarf2out.c @@ -2552,7 +2552,9 @@ dwarf2out_frame_debug_expr (rtx expr, const char *label) regno = REGNO (XEXP (XEXP (dest, 0), 0)); - if (cfa_store.reg == (unsigned) regno) + if (cfa.reg == (unsigned) regno) + offset -= cfa.offset; + else if (cfa_store.reg == (unsigned) regno) offset -= cfa_store.offset; else { @@ -2568,7 +2570,9 @@ dwarf2out_frame_debug_expr (rtx expr, const char *label) { int regno = REGNO (XEXP (dest, 0)); - if (cfa_store.reg == (unsigned) regno) + if (cfa.reg == (unsigned) regno) + offset = -cfa.offset; + else if (cfa_store.reg == (unsigned) regno) offset = -cfa_store.offset; else { |