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error: ensure errno detail is printed with error_abort 

When &error_abort is passed in, the error reporting code
will print the current error message and then abort() the
process. Unfortunately at the time it aborts, we've not
yet appended the errno detail. This makes debugging certain
problems significantly harder as the log is incomplete.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <1457544504-8548-22-git-send-email-berrange@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
This commit is contained in:
Daniel P. Berrange 2016-03-09 17:28:24 +00:00 committed by Markus Armbruster
parent a6cdb77f81
commit 20e2dec149
1 changed files with 19 additions and 21 deletions
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40
util/error.c
View File

@ -44,7 +44,8 @@ static void error_handle_fatal(Error **errp, Error *err)
static void error_setv(Error **errp,
const char *src, int line, const char *func,
ErrorClass err_class, const char *fmt, va_list ap)
ErrorClass err_class, const char *fmt, va_list ap,
const char *suffix)
{
Error *err;
int saved_errno = errno;
@ -56,6 +57,11 @@ static void error_setv(Error **errp,
err = g_malloc0(sizeof(*err));
err->msg = g_strdup_vprintf(fmt, ap);
if (suffix) {
char *msg = err->msg;
err->msg = g_strdup_printf("%s: %s", msg, suffix);
g_free(msg);
}
err->err_class = err_class;
err->src = src;
err->line = line;
@ -74,7 +80,7 @@ void error_set_internal(Error **errp,
va_list ap;
va_start(ap, fmt);
error_setv(errp, src, line, func, err_class, fmt, ap);
error_setv(errp, src, line, func, err_class, fmt, ap, NULL);
va_end(ap);
}
@ -85,7 +91,7 @@ void error_setg_internal(Error **errp,
va_list ap;
va_start(ap, fmt);
error_setv(errp, src, line, func, ERROR_CLASS_GENERIC_ERROR, fmt, ap);
error_setv(errp, src, line, func, ERROR_CLASS_GENERIC_ERROR, fmt, ap, NULL);
va_end(ap);
}
@ -94,7 +100,6 @@ void error_setg_errno_internal(Error **errp,
int os_errno, const char *fmt, ...)
{
va_list ap;
char *msg;
int saved_errno = errno;
if (errp == NULL) {
@ -102,15 +107,10 @@ void error_setg_errno_internal(Error **errp,
}
va_start(ap, fmt);
error_setv(errp, src, line, func, ERROR_CLASS_GENERIC_ERROR, fmt, ap);
error_setv(errp, src, line, func, ERROR_CLASS_GENERIC_ERROR, fmt, ap,
os_errno != 0 ? strerror(os_errno) : NULL);
va_end(ap);
if (os_errno != 0) {
msg = (*errp)->msg;
(*errp)->msg = g_strdup_printf("%s: %s", msg, strerror(os_errno));
g_free(msg);
}
errno = saved_errno;
}
@ -174,24 +174,22 @@ void error_setg_win32_internal(Error **errp,
int win32_err, const char *fmt, ...)
{
va_list ap;
char *msg1, *msg2;
char *suffix = NULL;
if (errp == NULL) {
return;
}
if (win32_err != 0) {
suffix = g_win32_error_message(win32_err);
}
va_start(ap, fmt);
error_setv(errp, src, line, func, ERROR_CLASS_GENERIC_ERROR, fmt, ap);
error_setv(errp, src, line, func, ERROR_CLASS_GENERIC_ERROR,
fmt, ap, suffix);
va_end(ap);
if (win32_err != 0) {
msg1 = (*errp)->msg;
msg2 = g_win32_error_message(win32_err);
(*errp)->msg = g_strdup_printf("%s: %s (error: %x)", msg1, msg2,
(unsigned)win32_err);
g_free(msg2);
g_free(msg1);
}
g_free(suffix);
}
#endif