#include "bckeyboard.h"
#include "bcresources.h"
#include "cstrdup.h"
+#include "filesystem.h"
#include <ctype.h>
#include <dirent.h>
+#ifndef NO_BTRACE
#include <execinfo.h>
+#endif
#include <fcntl.h>
#include <pwd.h>
#include <stdio.h>
#include <sys/stat.h>
#include <unistd.h>
#include <sys/ioctl.h>
+#ifndef NO_PRCTL
#include <sys/prctl.h>
+#endif
#include <sys/types.h>
BC_Signals* BC_Signals::global_signals = 0;
void BC_Signals::dump_stack(FILE *fp)
{
+#ifndef NO_BTRACE
void *buffer[256];
int total = backtrace (buffer, 256);
char **result = backtrace_symbols (buffer, total);
{
fprintf(fp, "%s\n", result[i]);
}
+#endif
}
// Kill subprocesses
getpid());
}
+#ifndef NO_PRCTL
// used to terminate child processes when program terminates
static void handle_exit(int signum)
{
//printf("child %d exit\n", getpid());
exit(0);
}
+#endif
void BC_Signals::set_sighup_exit(int enable)
{
+#ifndef NO_PRCTL
if( enable ) {
// causes SIGHUP to be generated when parent dies
signal(SIGHUP, handle_exit);
signal(SIGHUP, signal_entry);
prctl(PR_SET_PDEATHSIG, 0,0,0,0);
}
+#endif
}
BC_Signals::BC_Signals()
}
+#ifndef NO_CTX
#include <ucontext.h>
#include <sys/wait.h>
#include "thread.h"
#if __i386__
#define IP eip
+#define sigregs_t sigcontext
+
+static void reg_dump(FILE *fp,sigregs_t *rp)
+{
+ fprintf(fp,"REGS:\n");
+ fprintf(fp," gs: %04x:%04x\n", rp->gs,rp->__gsh);
+ fprintf(fp," fs: %04x:%04x\n", rp->fs,rp->__fsh);
+ fprintf(fp," es: %04x:%04x\n", rp->es,rp->__esh);
+ fprintf(fp," ds: %04x:%04x\n", rp->ds,rp->__dsh);
+ fprintf(fp," edi: %14p %d\n", (void*)rp->edi,rp->edi);
+ fprintf(fp," esi: %14p %d\n", (void*)rp->esi,rp->esi);
+ fprintf(fp," ebp: %14p %d\n", (void*)rp->ebp,rp->ebp);
+ fprintf(fp," esp: %14p %d\n", (void*)rp->esp,rp->esp);
+ fprintf(fp," ebx: %14p %d\n", (void*)rp->ebx,rp->ebx);
+ fprintf(fp," edx: %14p %d\n", (void*)rp->edx,rp->edx);
+ fprintf(fp," ecx: %14p %d\n", (void*)rp->ecx,rp->ecx);
+ fprintf(fp," eax: %14p %d\n", (void*)rp->eax,rp->eax);
+ fprintf(fp," trapno: %14p %d\n", (void*)rp->trapno,rp->trapno);
+ fprintf(fp," err: %14p %d\n", (void*)rp->err,rp->err);
+ fprintf(fp," eip: %14p %d\n", (void*)rp->eip,rp->eip);
+ fprintf(fp," cs: %04xd : %04x\n", rp->cs,rp->__csh);
+ fprintf(fp," eflags: %14p %d\n", (void*)rp->eflags,rp->eflags);
+ fprintf(fp," esp_at_signal: %p %d\n", (void*)rp->esp_at_signal,rp->esp_at_signal);
+ fprintf(fp," ss: %04xd : %04x\n", rp->ss,rp->__ssh);
+ fprintf(fp," oldmask: %14p %d\n", (void*)rp->oldmask,rp->oldmask);
+ fprintf(fp," cr2: %14p %d\n", (void*)rp->cr2,rp->cr2);
+ fprintf(fp,"\n");
+}
#endif
+
#if __x86_64__
#define IP rip
+#define sigregs_t sigcontext
+
+static void reg_dump(FILE *fp,sigregs_t *rp)
+{
+ fprintf(fp,"REGS:\n");
+ fprintf(fp," r8: %20p %jd\n", (void*)rp->r8,rp->r8);
+ fprintf(fp," r9: %20p %jd\n", (void*)rp->r9,rp->r9);
+ fprintf(fp," r10: %20p %jd\n", (void*)rp->r10,rp->r10);
+ fprintf(fp," r11: %20p %jd\n", (void*)rp->r11,rp->r11);
+ fprintf(fp," r12: %20p %jd\n", (void*)rp->r12,rp->r12);
+ fprintf(fp," r13: %20p %jd\n", (void*)rp->r13,rp->r13);
+ fprintf(fp," r14: %20p %jd\n", (void*)rp->r14,rp->r14);
+ fprintf(fp," r15: %20p %jd\n", (void*)rp->r15,rp->r15);
+ fprintf(fp," rdi: %20p %jd\n", (void*)rp->rdi,rp->rdi);
+ fprintf(fp," rsi: %20p %jd\n", (void*)rp->rsi,rp->rsi);
+ fprintf(fp," rbp: %20p %jd\n", (void*)rp->rbp,rp->rbp);
+ fprintf(fp," rbx: %20p %jd\n", (void*)rp->rbx,rp->rbx);
+ fprintf(fp," rdx: %20p %jd\n", (void*)rp->rdx,rp->rdx);
+ fprintf(fp," rax: %20p %jd\n", (void*)rp->rax,rp->rax);
+ fprintf(fp," rcx: %20p %jd\n", (void*)rp->rcx,rp->rcx);
+ fprintf(fp," rsp: %20p %jd\n", (void*)rp->rsp,rp->rsp);
+ fprintf(fp," rip: %20p %jd\n", (void*)rp->rip,rp->rip);
+ fprintf(fp," eflags: %14p %jd\n", (void*)rp->eflags,rp->eflags);
+ fprintf(fp," cs: %04x\n", rp->cs);
+ fprintf(fp," gs: %04x\n", rp->gs);
+ fprintf(fp," fs: %04x\n", rp->fs);
+ fprintf(fp," err: %20p %jd\n", (void*)rp->err,rp->err);
+ fprintf(fp," trapno: %20p %jd\n", (void*)rp->trapno,rp->trapno);
+ fprintf(fp," oldmask: %20p %jd\n", (void*)rp->oldmask,rp->oldmask);
+ fprintf(fp," cr2: %20p %jd\n", (void*)rp->cr2,rp->cr2);
+ fprintf(fp,"\n");
+}
+
+#endif
+
+#if __powerpc__ || __powerpc64__ || __powerpc64le__
+#include <asm/ptrace.h>
+#define IP nip
+#define sigregs_t pt_regs
+static void reg_dump(FILE *fp,sigregs_t *rp) {}
#endif
+
#ifndef IP
#error gotta have IP
#endif
+// HAVE_CTX
+#endif
static void handle_dump(int n, siginfo_t * info, void *sc)
{
// it is not necessary to be root if ptrace is allowed via:
// echo 0 > /proc/sys/kernel/yama/ptrace_scope (usually set to 1)
// if( uid != 0 ) return;
- ucontext_t *uc = (ucontext_t *)sc;
int pid = getpid(), tid = gettid();
- struct sigcontext *c = (struct sigcontext *)&uc->uc_mcontext;
- uint8_t *ip = (uint8_t *)c->IP;
+ void *ip = 0;
+#ifndef NO_CTX
+ ucontext_t *uc = (ucontext_t *)sc;
+ struct sigregs_t *c = (struct sigregs_t *)&uc->uc_mcontext;
+ ip = (void *)c->IP;
+#endif
fprintf(stderr,"** %s at %p in pid %d, tid %d\n",
n==SIGSEGV? "segv" : n==SIGINT? "intr" : "trap",
- (void*)ip, pid, tid);
+ ip, pid, tid);
FILE *fp = 0;
char fn[PATH_MAX];
if( BC_Signals::trap_path ) {
fprintf(stderr,"writing debug data to %s\n", fn);
fprintf(fp,"** %s at %p in pid %d, tid %d\n",
n==SIGSEGV? "segv" : n==SIGINT? "intr" : "trap",
- (void*)c->IP, pid, tid);
+ ip, pid, tid);
}
else {
strcpy(fn, "stdout");
fprintf(fp," by %d:%d %s(%s)\n",
pw->pw_uid, pw->pw_gid, pw->pw_name, pw->pw_gecos);
}
+ fprintf(fp,"\nOS:\n"); bc_copy_textfile(16, fp,"/etc/os-release");
fprintf(fp,"\nCPUS: %d\n", BC_Resources::get_machine_cpus());
fprintf(fp,"\nCPUINFO:\n"); bc_copy_textfile(32, fp,"/proc/cpuinfo");
fprintf(fp,"\nTHREADS:\n"); BC_Trace::dump_threads(fp);
fprintf(fp,"\nSTATUS:\n"); bc_copy_textfile(INT_MAX, fp,"/proc/%d/status",pid);
fprintf(fp,"\nFD:\n"); bc_list_openfiles(INT_MAX, fp,"/proc/%d/fd", pid);
fprintf(fp,"\nMAPS:\n"); bc_copy_textfile(INT_MAX, fp,"/proc/%d/maps",pid);
+#ifndef NO_CTX
char proc_mem[64];
if( tid > 0 && tid != pid )
sprintf(proc_mem,"/proc/%d/task/%d/mem",pid,tid);
if( pfd >= 0 ) {
fprintf(fp,"\nCODE:\n");
for( int i=-32; i<32; ) {
- uint8_t v; void *vp = (void *)(ip + i);
+ uint8_t v; void *vp = (void *)((char*)ip + i);
if( !(i & 7) ) fprintf(fp,"%p: ", vp);
if( pread(pfd,&v,sizeof(v),(off_t)vp) != sizeof(v) ) break;
fprintf(fp,"%c%02x", !i ? '>' : ' ', v);
}
else
fprintf(fp,"err opening: %s, %m\n", proc_mem);
-
+ reg_dump(fp, c);
+#endif
fprintf(fp,"\n\n");
if( fp != stdout ) fclose(fp);
+#ifndef NO_GDB
char cmd[1024], *cp = cmd;
cp += sprintf(cp, "exec gdb /proc/%d/exe -p %d --batch --quiet "
"-ex \"thread apply all info registers\" "
}
char *const argv[4] = { (char*) "/bin/sh", (char*) "-c", cmd, 0 };
execvp(argv[0], &argv[0]);
+#endif
}
projects / goodguy / cinelerra.git / blobdiff