diff options
Diffstat (limited to 'tools/objtool/check.c')
-rw-r--r-- | tools/objtool/check.c | 27 |
1 files changed, 7 insertions, 20 deletions
diff --git a/tools/objtool/check.c b/tools/objtool/check.c index 46c1d239cc1b..92b6a2c21631 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c | |||
@@ -1116,42 +1116,29 @@ static int read_unwind_hints(struct objtool_file *file) | |||
1116 | 1116 | ||
1117 | static int read_retpoline_hints(struct objtool_file *file) | 1117 | static int read_retpoline_hints(struct objtool_file *file) |
1118 | { | 1118 | { |
1119 | struct section *sec, *relasec; | 1119 | struct section *sec; |
1120 | struct instruction *insn; | 1120 | struct instruction *insn; |
1121 | struct rela *rela; | 1121 | struct rela *rela; |
1122 | int i; | ||
1123 | 1122 | ||
1124 | sec = find_section_by_name(file->elf, ".discard.retpoline_safe"); | 1123 | sec = find_section_by_name(file->elf, ".rela.discard.retpoline_safe"); |
1125 | if (!sec) | 1124 | if (!sec) |
1126 | return 0; | 1125 | return 0; |
1127 | 1126 | ||
1128 | relasec = sec->rela; | 1127 | list_for_each_entry(rela, &sec->rela_list, list) { |
1129 | if (!relasec) { | 1128 | if (rela->sym->type != STT_SECTION) { |
1130 | WARN("missing .rela.discard.retpoline_safe section"); | 1129 | WARN("unexpected relocation symbol type in %s", sec->name); |
1131 | return -1; | ||
1132 | } | ||
1133 | |||
1134 | if (sec->len % sizeof(unsigned long)) { | ||
1135 | WARN("retpoline_safe size mismatch: %d %ld", sec->len, sizeof(unsigned long)); | ||
1136 | return -1; | ||
1137 | } | ||
1138 | |||
1139 | for (i = 0; i < sec->len / sizeof(unsigned long); i++) { | ||
1140 | rela = find_rela_by_dest(sec, i * sizeof(unsigned long)); | ||
1141 | if (!rela) { | ||
1142 | WARN("can't find rela for retpoline_safe[%d]", i); | ||
1143 | return -1; | 1130 | return -1; |
1144 | } | 1131 | } |
1145 | 1132 | ||
1146 | insn = find_insn(file, rela->sym->sec, rela->addend); | 1133 | insn = find_insn(file, rela->sym->sec, rela->addend); |
1147 | if (!insn) { | 1134 | if (!insn) { |
1148 | WARN("can't find insn for retpoline_safe[%d]", i); | 1135 | WARN("bad .discard.retpoline_safe entry"); |
1149 | return -1; | 1136 | return -1; |
1150 | } | 1137 | } |
1151 | 1138 | ||
1152 | if (insn->type != INSN_JUMP_DYNAMIC && | 1139 | if (insn->type != INSN_JUMP_DYNAMIC && |
1153 | insn->type != INSN_CALL_DYNAMIC) { | 1140 | insn->type != INSN_CALL_DYNAMIC) { |
1154 | WARN_FUNC("retpoline_safe hint not a indirect jump/call", | 1141 | WARN_FUNC("retpoline_safe hint not an indirect jump/call", |
1155 | insn->sec, insn->offset); | 1142 | insn->sec, insn->offset); |
1156 | return -1; | 1143 | return -1; |
1157 | } | 1144 | } |