diff options
Diffstat (limited to 'addr2line.c')
| -rw-r--r-- | addr2line.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/addr2line.c b/addr2line.c index 0ab55ecae8..213196faa5 100644 --- a/addr2line.c +++ b/addr2line.c @@ -51,11 +51,13 @@ #define DW_LNE_define_file 0x03 #define DW_LNE_set_discriminator 0x04 /* DWARF4 */ +#ifndef ElfW # if SIZEOF_VOIDP == 8 # define ElfW(x) Elf64##_##x # else # define ElfW(x) Elf32##_##x # endif +#endif typedef struct { const char *dirname; @@ -210,7 +212,7 @@ parse_debug_line_cu(int num_traces, void **traces, unsigned int file = 1; unsigned int line = 1; unsigned int column = 0; - int is_stmt = default_is_stmt; + int is_stmt; int basic_block = 0; int end_sequence = 0; int prologue_end = 0; @@ -239,7 +241,7 @@ parse_debug_line_cu(int num_traces, void **traces, minimum_instruction_length = *(unsigned char *)p; p++; - default_is_stmt = *(unsigned char *)p; + is_stmt = default_is_stmt = *(unsigned char *)p; p++; line_base = *(char *)p; @@ -489,10 +491,17 @@ rb_dump_backtrace_with_lines(int num_traces, void **trace, char **syms) binary_filename[len] = '\0'; fd = open(binary_filename, O_RDONLY); + if (fd < 0) { + continue; + } filesize = lseek(fd, 0, SEEK_END); lseek(fd, 0, SEEK_SET); /* async-signal unsafe */ file = (char *)mmap(NULL, filesize, PROT_READ, MAP_SHARED, fd, 0); + if (file == MAP_FAILED) { + perror("mmap"); + continue; + } lines[i].fd = fd; lines[i].mapped = file; |