diff options
Diffstat (limited to 'tools/perf/util/annotate-data.c')
| -rw-r--r-- | tools/perf/util/annotate-data.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/tools/perf/util/annotate-data.c b/tools/perf/util/annotate-data.c index 245e3ef3e2ff..68fe7999f033 100644 --- a/tools/perf/util/annotate-data.c +++ b/tools/perf/util/annotate-data.c @@ -1258,11 +1258,12 @@ static void setup_stack_canary(struct data_loc_info *dloc) * are similar to global variables and no additional info is needed. */ static int check_matching_type(struct type_state *state, - struct data_loc_info *dloc, int reg, + struct data_loc_info *dloc, Dwarf_Die *cu_die, Dwarf_Die *type_die) { Dwarf_Word size; u32 insn_offset = dloc->ip - dloc->ms->sym->start; + int reg = dloc->op->reg1; pr_debug_dtp("chk [%x] reg%d offset=%#x ok=%d kind=%d", insn_offset, reg, dloc->op->offset, @@ -1448,7 +1449,7 @@ check_kernel: } /* Iterate instructions in basic blocks and update type table */ -static int find_data_type_insn(struct data_loc_info *dloc, int reg, +static int find_data_type_insn(struct data_loc_info *dloc, struct list_head *basic_blocks, struct die_var_type *var_types, Dwarf_Die *cu_die, Dwarf_Die *type_die) @@ -1481,7 +1482,7 @@ static int find_data_type_insn(struct data_loc_info *dloc, int reg, update_var_state(&state, dloc, addr, dl->al.offset, var_types); if (this_ip == dloc->ip) { - ret = check_matching_type(&state, dloc, reg, + ret = check_matching_type(&state, dloc, cu_die, type_die); goto out; } @@ -1502,7 +1503,7 @@ out: * Construct a list of basic blocks for each scope with variables and try to find * the data type by updating a type state table through instructions. */ -static int find_data_type_block(struct data_loc_info *dloc, int reg, +static int find_data_type_block(struct data_loc_info *dloc, Dwarf_Die *cu_die, Dwarf_Die *scopes, int nr_scopes, Dwarf_Die *type_die) { @@ -1550,7 +1551,7 @@ again: fixup_var_address(var_types, start); /* Find from start of this scope to the target instruction */ - found = find_data_type_insn(dloc, reg, &basic_blocks, var_types, + found = find_data_type_insn(dloc, &basic_blocks, var_types, cu_die, type_die); if (found > 0) { char buf[64]; @@ -1716,8 +1717,13 @@ retry: goto out; } + if (loc->multi_regs && reg == loc->reg1 && loc->reg1 != loc->reg2) { + reg = loc->reg2; + goto retry; + } + if (reg != DWARF_REG_PC) { - ret = find_data_type_block(dloc, reg, &cu_die, scopes, + ret = find_data_type_block(dloc, &cu_die, scopes, nr_scopes, type_die); if (ret == 0) { ann_data_stat.insn_track++; @@ -1725,11 +1731,6 @@ retry: } } - if (loc->multi_regs && reg == loc->reg1 && loc->reg1 != loc->reg2) { - reg = loc->reg2; - goto retry; - } - if (ret < 0) { pr_debug_dtp("no variable found\n"); ann_data_stat.no_var++; |