diff options
Diffstat (limited to 'debuggerd/debuggerd.c')
| -rw-r--r-- | debuggerd/debuggerd.c | 27 |
1 files changed, 20 insertions, 7 deletions
diff --git a/debuggerd/debuggerd.c b/debuggerd/debuggerd.c index d03c214..97a6b9e 100644 --- a/debuggerd/debuggerd.c +++ b/debuggerd/debuggerd.c @@ -70,14 +70,17 @@ mapinfo *parse_maps_line(char *line) mapinfo *mi; int len = strlen(line); - if(len < 1) return 0; + if (len < 1) return 0; /* not expected */ line[--len] = 0; - if(len < 50) return 0; - if(line[20] != 'x') return 0; + if (len < 50) { + mi = malloc(sizeof(mapinfo) + 1); + } else { + mi = malloc(sizeof(mapinfo) + (len - 47)); + } + if (mi == 0) return 0; - mi = malloc(sizeof(mapinfo) + (len - 47)); - if(mi == 0) return 0; + mi->isExecutable = (line[20] == 'x'); mi->start = strtoul(line, 0, 16); mi->end = strtoul(line + 9, 0, 16); @@ -87,7 +90,11 @@ mapinfo *parse_maps_line(char *line) mi->exidx_start = mi->exidx_end = 0; mi->symbols = 0; mi->next = 0; - strcpy(mi->name, line + 49); + if (len < 50) { + mi->name[0] = '\0'; + } else { + strcpy(mi->name, line + 49); + } return mi; } @@ -165,11 +172,14 @@ void dump_fault_addr(int tfd, int pid, int sig) memset(&si, 0, sizeof(si)); if(ptrace(PTRACE_GETSIGINFO, pid, 0, &si)){ _LOG(tfd, false, "cannot get siginfo: %s\n", strerror(errno)); - } else { + } else if (signal_has_address(sig)) { _LOG(tfd, false, "signal %d (%s), code %d (%s), fault addr %08x\n", sig, get_signame(sig), si.si_code, get_sigcode(sig, si.si_code), si.si_addr); + } else { + _LOG(tfd, false, "signal %d (%s), code %d (%s), fault addr --------\n", + sig, get_signame(sig), si.si_code, get_sigcode(sig, si.si_code)); } } @@ -199,6 +209,9 @@ static void parse_elf_info(mapinfo *milist, pid_t pid) { mapinfo *mi; for (mi = milist; mi != NULL; mi = mi->next) { + if (!mi->isExecutable) + continue; + Elf32_Ehdr ehdr; memset(&ehdr, 0, sizeof(Elf32_Ehdr)); |