diff options
Diffstat (limited to 'tools/perf/util/annotate-data.c')
-rw-r--r-- | tools/perf/util/annotate-data.c | 44 |
1 files changed, 27 insertions, 17 deletions
diff --git a/tools/perf/util/annotate-data.c b/tools/perf/util/annotate-data.c index 916d26bfb9eb..e86f40fed323 100644 --- a/tools/perf/util/annotate-data.c +++ b/tools/perf/util/annotate-data.c @@ -1244,7 +1244,6 @@ again: pr_debug_dtp("found by insn track: %#x(%s) type-offset=%#x\n", dloc->op->offset, buf, dloc->type_offset); - pr_debug_type_name(type_die, TSR_KIND_TYPE); break; } @@ -1273,6 +1272,7 @@ static int find_data_type_die(struct data_loc_info *dloc, Dwarf_Die *type_die) int fbreg = -1; int fb_offset = 0; bool is_fbreg = false; + bool found = false; u64 pc; char buf[64]; enum type_match_result result; @@ -1358,14 +1358,17 @@ retry: /* Search from the inner-most scope to the outer */ for (i = nr_scopes - 1; i >= 0; i--) { + Dwarf_Die mem_die; + int type_offset = offset; + if (reg == DWARF_REG_PC) { if (!die_find_variable_by_addr(&scopes[i], dloc->var_addr, - &var_die, &offset)) + &var_die, &type_offset)) continue; } else { /* Look up variables/parameters in this scope */ if (!die_find_variable_by_reg(&scopes[i], pc, reg, - &offset, is_fbreg, &var_die)) + &type_offset, is_fbreg, &var_die)) continue; } @@ -1374,43 +1377,50 @@ retry: i+1, nr_scopes, (long)dwarf_dieoffset(&scopes[i])); /* Found a variable, see if it's correct */ - result = check_variable(dloc, &var_die, type_die, reg, offset, is_fbreg); + result = check_variable(dloc, &var_die, &mem_die, reg, type_offset, is_fbreg); if (result == PERF_TMR_OK) { if (reg == DWARF_REG_PC) { pr_debug_dtp("addr=%#"PRIx64" type_offset=%#x\n", - dloc->var_addr, offset); + dloc->var_addr, type_offset); } else if (reg == DWARF_REG_FB || is_fbreg) { pr_debug_dtp("stack_offset=%#x type_offset=%#x\n", - fb_offset, offset); + fb_offset, type_offset); } else { - pr_debug_dtp("type_offset=%#x\n", offset); + pr_debug_dtp("type_offset=%#x\n", type_offset); + } + + if (!found || is_better_type(type_die, &mem_die)) { + *type_die = mem_die; + dloc->type_offset = type_offset; + found = true; } - ret = 0; } else { pr_debug_dtp("failed: %s\n", match_result_str(result)); - ret = -1; } + pr_debug_location(&var_die, pc, reg); - pr_debug_type_name(type_die, TSR_KIND_TYPE); - dloc->type_offset = offset; - goto out; + pr_debug_type_name(&mem_die, TSR_KIND_TYPE); } - if (loc->multi_regs && reg == loc->reg1 && loc->reg1 != loc->reg2) { + if (!found && loc->multi_regs && reg == loc->reg1 && loc->reg1 != loc->reg2) { reg = loc->reg2; goto retry; } - if (reg != DWARF_REG_PC) { + if (!found && reg != DWARF_REG_PC) { result = find_data_type_block(dloc, &cu_die, scopes, - nr_scopes, type_die); + nr_scopes, type_die); if (result == PERF_TMR_OK) { ann_data_stat.insn_track++; - ret = 0; + found = true; } } - if (ret < 0) { + if (found) { + pr_debug_dtp("final type:"); + pr_debug_type_name(type_die, TSR_KIND_TYPE); + ret = 0; + } else { pr_debug_dtp("no variable found\n"); ann_data_stat.no_var++; } |