Print out the signal code along with signal number and address. (83c6b052) · Commits · e / os / android_system_core

debuggerd/debuggerd.c

+48 −2

Original line number	Diff line number	Diff line
		@@ -318,6 +318,50 @@ const char *get_signame(int sig)
		}
		}

		const char *get_sigcode(int signo, int code)
		{
		switch (signo) {
		case SIGILL:
		switch (code) {
		case ILL_ILLOPC: return "ILL_ILLOPC";
		case ILL_ILLOPN: return "ILL_ILLOPN";
		case ILL_ILLADR: return "ILL_ILLADR";
		case ILL_ILLTRP: return "ILL_ILLTRP";
		case ILL_PRVOPC: return "ILL_PRVOPC";
		case ILL_PRVREG: return "ILL_PRVREG";
		case ILL_COPROC: return "ILL_COPROC";
		case ILL_BADSTK: return "ILL_BADSTK";
		}
		break;
		case SIGBUS:
		switch (code) {
		case BUS_ADRALN: return "BUS_ADRALN";
		case BUS_ADRERR: return "BUS_ADRERR";
		case BUS_OBJERR: return "BUS_OBJERR";
		}
		break;
		case SIGFPE:
		switch (code) {
		case FPE_INTDIV: return "FPE_INTDIV";
		case FPE_INTOVF: return "FPE_INTOVF";
		case FPE_FLTDIV: return "FPE_FLTDIV";
		case FPE_FLTOVF: return "FPE_FLTOVF";
		case FPE_FLTUND: return "FPE_FLTUND";
		case FPE_FLTRES: return "FPE_FLTRES";
		case FPE_FLTINV: return "FPE_FLTINV";
		case FPE_FLTSUB: return "FPE_FLTSUB";
		}
		break;
		case SIGSEGV:
		switch (code) {
		case SEGV_MAPERR: return "SEGV_MAPERR";
		case SEGV_ACCERR: return "SEGV_ACCERR";
		}
		break;
		}
		return "?";
		}

		void dump_fault_addr(int tfd, int pid, int sig)
		{
		siginfo_t si;
		@@ -326,8 +370,10 @@ void dump_fault_addr(int tfd, int pid, int sig)
		if(ptrace(PTRACE_GETSIGINFO, pid, 0, &si)){
		_LOG(tfd, false, "cannot get siginfo: %s\n", strerror(errno));
		} else {
		_LOG(tfd, false, "signal %d (%s), fault addr %08x\n",
		sig, get_signame(sig), si.si_addr);
		_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);
		}
		}