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lnav
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[build] dump crash log during build

This commit is contained in:
Timothy Stack 2020-09-24 08:58:20 -07:00
parent e04d49bc98
commit 6ec90c521b
2 changed files with 11 additions and 2 deletions
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2
src/Makefile.am
View File

@ -472,7 +472,7 @@ uncrusty:
if !DISABLE_DOCUMENTATION
all-local: lnav
env DUMP_INTERNALS_DIR=$(srcdir)/internals ./lnav Makefile
env DUMP_INTERNALS_DIR=$(srcdir)/internals DUMP_CRASH=1 ./lnav Makefile
endif
install-exec-hook:

11
src/base/lnav_log.cc
View File

@ -368,7 +368,7 @@ static void sigabrt(int sig)
getpid());
snprintf(latest_crash_path, sizeof(latest_crash_path),
"%s/latest-crash.log", lnav_log_crash_dir);
if ((fd = open(crash_path, O_CREAT|O_TRUNC|O_WRONLY, 0600)) != -1) {
if ((fd = open(crash_path, O_CREAT|O_TRUNC|O_RDWR, 0600)) != -1) {
if (log_ring.lr_frag_start < (off_t)BUFFER_SIZE) {
(void)write(fd, &log_ring.lr_data[log_ring.lr_frag_start],
log_ring.lr_frag_end - log_ring.lr_frag_start);
@ -392,6 +392,15 @@ static void sigabrt(int sig)
log_ring.lr_frag_end - log_ring.lr_frag_start);
}
write(fd, log_ring.lr_data, log_ring.lr_length);
if (getenv("DUMP_CRASH") != nullptr) {
char buffer[1024];
int rc;
lseek(fd, 0, SEEK_SET);
while ((rc = read(fd, buffer, sizeof(buffer))) > 0) {
write(STDERR_FILENO, buffer, rc);
}
}
close(fd);
remove(latest_crash_path);