diff options
Diffstat (limited to 'gdb/i386-tdep.c')
| -rw-r--r-- | gdb/i386-tdep.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/gdb/i386-tdep.c b/gdb/i386-tdep.c index f0056bea56f..52b5c7004ff 100644 --- a/gdb/i386-tdep.c +++ b/gdb/i386-tdep.c @@ -1582,7 +1582,23 @@ i386_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR start_pc) CORE_ADDR pc; gdb_byte op; int i; + CORE_ADDR func_addr; + if (find_pc_partial_function (start_pc, NULL, &func_addr, NULL)) + { + CORE_ADDR post_prologue_pc + = skip_prologue_using_sal (gdbarch, func_addr); + struct symtab *s = find_pc_symtab (func_addr); + + /* Clang always emits a line note before the prologue and another + one after. We trust clang to emit usable line notes. */ + if (post_prologue_pc + && (s != NULL + && s->producer != NULL + && strncmp (s->producer, "clang ", sizeof ("clang ") - 1) == 0)) + return max (start_pc, post_prologue_pc); + } + cache.locals = -1; pc = i386_analyze_prologue (gdbarch, start_pc, 0xffffffff, &cache); if (cache.locals < 0) |