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| author | Doug Evans <dje@google.com> | 2009-09-15 16:20:53 +0000 |
|---|---|---|
| committer | Doug Evans <dje@google.com> | 2009-09-15 16:20:53 +0000 |
| commit | 44353522ecb0bfbddc5670741e5e8a3f7ae8d2e6 (patch) | |
| tree | c313a1ee9d6ba6f9709239eb7aaf324123f19a4d /gdb/dwarf2-frame.c | |
| parent | 7d4f32d36af917e1f2662f204146b808bbbbf8f2 (diff) | |
| download | gdb-44353522ecb0bfbddc5670741e5e8a3f7ae8d2e6.zip gdb-44353522ecb0bfbddc5670741e5e8a3f7ae8d2e6.tar.gz gdb-44353522ecb0bfbddc5670741e5e8a3f7ae8d2e6.tar.bz2 | |
* dwarf2expr.h (dwarf_value_location): Add more comments describing
enum values.
(struct dwarf_stack_value): New struct.
(struct dwarf_expr_context): Change type of `stack' from CORE_ADDR*
to struct dwarf_stack_value*.
(struct dwarf_expr_piece): Move `v.value' into its own struct, v.expr,
all uses updated. Add v.expr.in_stack_memory.
(dwarf_expr_push): Update declaration.
(dwarf_expr_fetch_in_stack_memory): Declare.
* dwarf2expr.c (dwarf_expr_grow_stack): Update calculation of
size of stack value.
(dwarf_expr_push): New arg in_stack_memory, all callers updated.
(dwarf_expr_fetch_in_stack_memory): New function.
(add_piece): Set in_stack_memory for non-literal values.
(execute_stack_op): Allow ops to specify whether the value is on the
program's stack.
(execute_stack_op, case DW_OP_fbreg): Mark value as in stack memory.
(execute_stack_op, case DW_OP_call_frame_cfa): Ditto.
(execute_stack_op, case DW_OP_dup): Copy in_stack_memory flag.
(execute_stack_op, cases DW_OP_pick, DW_OP_over): Ditto.
(execute_stack_op, cases DW_OP_swap, DW_OP_rot): Update type of
dwarf stack value.
* dwarf2loc.c (read_pieced_value): Call read_stack for values known
to be on the program's stack.
(dwarf2_evaluate_loc_desc, case DWARF_VALUE_MEMORY): Call
set_value_stack only for objects known to be in stack memory.
* dwarf2-frame.c (execute_stack_op): New arg initial_in_stack_memory,
all callers updated.
Diffstat (limited to 'gdb/dwarf2-frame.c')
| -rw-r--r-- | gdb/dwarf2-frame.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/gdb/dwarf2-frame.c b/gdb/dwarf2-frame.c index a923edf..668c434 100644 --- a/gdb/dwarf2-frame.c +++ b/gdb/dwarf2-frame.c @@ -357,7 +357,8 @@ register %s (#%d) at %s"), static CORE_ADDR execute_stack_op (gdb_byte *exp, ULONGEST len, int addr_size, - struct frame_info *this_frame, CORE_ADDR initial) + struct frame_info *this_frame, CORE_ADDR initial, + int initial_in_stack_memory) { struct dwarf_expr_context *ctx; CORE_ADDR result; @@ -375,7 +376,7 @@ execute_stack_op (gdb_byte *exp, ULONGEST len, int addr_size, ctx->get_frame_cfa = no_get_frame_cfa; ctx->get_tls_address = no_get_tls_address; - dwarf_expr_push (ctx, initial); + dwarf_expr_push (ctx, initial, initial_in_stack_memory); dwarf_expr_eval (ctx, exp, len); result = dwarf_expr_fetch (ctx, 0); @@ -975,7 +976,7 @@ dwarf2_frame_cache (struct frame_info *this_frame, void **this_cache) case CFA_EXP: cache->cfa = execute_stack_op (fs->regs.cfa_exp, fs->regs.cfa_exp_len, - cache->addr_size, this_frame, 0); + cache->addr_size, this_frame, 0, 0); break; default: @@ -1131,7 +1132,7 @@ dwarf2_frame_prev_register (struct frame_info *this_frame, void **this_cache, case DWARF2_FRAME_REG_SAVED_EXP: addr = execute_stack_op (cache->reg[regnum].loc.exp, cache->reg[regnum].exp_len, - cache->addr_size, this_frame, cache->cfa); + cache->addr_size, this_frame, cache->cfa, 1); return frame_unwind_got_memory (this_frame, regnum, addr); case DWARF2_FRAME_REG_SAVED_VAL_OFFSET: @@ -1141,7 +1142,7 @@ dwarf2_frame_prev_register (struct frame_info *this_frame, void **this_cache, case DWARF2_FRAME_REG_SAVED_VAL_EXP: addr = execute_stack_op (cache->reg[regnum].loc.exp, cache->reg[regnum].exp_len, - cache->addr_size, this_frame, cache->cfa); + cache->addr_size, this_frame, cache->cfa, 1); return frame_unwind_got_constant (this_frame, regnum, addr); case DWARF2_FRAME_REG_UNSPECIFIED: |