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8020775: PPC64 (part 12): posix signal printing

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Implement methods printing posix signal information and call them in unix os files.

Reviewed-by: kvn, dholmes, twisti
This commit is contained in:
Thomas Stuefe 2013-07-26 00:59:18 +02:00 • committed by Goetz Lindenmaier
parent 1619c53530
commit a72b868ac2
5 changed files with 555 additions and 177 deletions
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58
hotspot/src/os/linux/vm/os_linux.cpp
View file

@ -2231,58 +2231,12 @@ void os::pd_print_cpu_info(outputStream* st) {
st->cr();
}
// Taken from /usr/include/bits/siginfo.h Supposed to be architecture specific
// but they're the same for all the linux arch that we support
// and they're the same for solaris but there's no common place to put this.
const char *ill_names[] = { "ILL0", "ILL_ILLOPC", "ILL_ILLOPN", "ILL_ILLADR",
"ILL_ILLTRP", "ILL_PRVOPC", "ILL_PRVREG",
"ILL_COPROC", "ILL_BADSTK" };
const char *fpe_names[] = { "FPE0", "FPE_INTDIV", "FPE_INTOVF", "FPE_FLTDIV",
"FPE_FLTOVF", "FPE_FLTUND", "FPE_FLTRES",
"FPE_FLTINV", "FPE_FLTSUB", "FPE_FLTDEN" };
const char *segv_names[] = { "SEGV0", "SEGV_MAPERR", "SEGV_ACCERR" };
const char *bus_names[] = { "BUS0", "BUS_ADRALN", "BUS_ADRERR", "BUS_OBJERR" };
void os::print_siginfo(outputStream* st, void* siginfo) {
st->print("siginfo:");
const siginfo_t* si = (const siginfo_t*)siginfo;
const int buflen = 100;
char buf[buflen];
siginfo_t *si = (siginfo_t*)siginfo;
st->print("si_signo=%s: ", os::exception_name(si->si_signo, buf, buflen));
if (si->si_errno != 0 && strerror_r(si->si_errno, buf, buflen) == 0) {
st->print("si_errno=%s", buf);
} else {
st->print("si_errno=%d", si->si_errno);
}
const int c = si->si_code;
assert(c > 0, "unexpected si_code");
switch (si->si_signo) {
case SIGILL:
st->print(", si_code=%d (%s)", c, c > 8 ? "" : ill_names[c]);
st->print(", si_addr=" PTR_FORMAT, si->si_addr);
break;
case SIGFPE:
st->print(", si_code=%d (%s)", c, c > 9 ? "" : fpe_names[c]);
st->print(", si_addr=" PTR_FORMAT, si->si_addr);
break;
case SIGSEGV:
st->print(", si_code=%d (%s)", c, c > 2 ? "" : segv_names[c]);
st->print(", si_addr=" PTR_FORMAT, si->si_addr);
break;
case SIGBUS:
st->print(", si_code=%d (%s)", c, c > 3 ? "" : bus_names[c]);
st->print(", si_addr=" PTR_FORMAT, si->si_addr);
break;
default:
st->print(", si_code=%d", si->si_code);
// no si_addr
}
os::Posix::print_siginfo_brief(st, si);
if ((si->si_signo == SIGBUS || si->si_signo == SIGSEGV) &&
if (si && (si->si_signo == SIGBUS || si->si_signo == SIGSEGV) &&
UseSharedSpaces) {
FileMapInfo* mapinfo = FileMapInfo::current_info();
if (mapinfo->is_in_shared_space(si->si_addr)) {
@ -4278,7 +4232,8 @@ static void print_signal_handler(outputStream* st, int sig,
st->print("[%s]", get_signal_handler_name(handler, buf, buflen));
}
st->print(", sa_mask[0]=" PTR32_FORMAT, *(uint32_t*)&sa.sa_mask);
st->print(", sa_mask[0]=");
os::Posix::print_signal_set_short(st, &sa.sa_mask);
address rh = VMError::get_resetted_sighandler(sig);
// May be, handler was resetted by VMError?
@ -4287,7 +4242,8 @@ static void print_signal_handler(outputStream* st, int sig,
sa.sa_flags = VMError::get_resetted_sigflags(sig) & SIGNIFICANT_SIGNAL_MASK;
}
st->print(", sa_flags=" PTR32_FORMAT, sa.sa_flags);
st->print(", sa_flags=");
os::Posix::print_sa_flags(st, sa.sa_flags);
// Check: is it our handler?
if(handler == CAST_FROM_FN_PTR(address, (sa_sigaction_t)signalHandler) ||