xemu/include/qemu/error-report.h
Mario Smarduch 2880ffb089 util/qemu-error: prepend guest name to error message to identify affected VM owner
This is followup patch to the one submitted back in Oct, 19

https://lists.gnu.org/archive/html/qemu-devel/2019-10/msg02102.html

My mistake here, I took my eyes of the mailing list after I got the
initial thumbs up. This patch follows up on Markus comments in the
above link.

Purpose of this patch:

We want to print guest name for errors, warnings and info messages. This
was the first of two patches the second being MCE errors targeting a VM
with guest name prepended. But in a large fleet we see many other
errors that disable a VM or crash it. In a large fleet and centralized
logging having the guest name enables identify of owner and customer.

Signed-off-by: Mario Smarduch <msmarduch@digitalocean.com>
Message-Id: <20200626201900.8876-1-msmarduch@digitalocean.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-07-10 18:02:15 -04:00

82 lines
2.6 KiB
C

/*
* Error reporting
*
* Copyright (C) 2010 Red Hat Inc.
*
* Authors:
* Markus Armbruster <armbru@redhat.com>,
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#ifndef QEMU_ERROR_REPORT_H
#define QEMU_ERROR_REPORT_H
typedef struct Location {
/* all members are private to qemu-error.c */
enum { LOC_NONE, LOC_CMDLINE, LOC_FILE } kind;
int num;
const void *ptr;
struct Location *prev;
} Location;
Location *loc_push_restore(Location *loc);
Location *loc_push_none(Location *loc);
Location *loc_pop(Location *loc);
Location *loc_save(Location *loc);
void loc_restore(Location *loc);
void loc_set_none(void);
void loc_set_cmdline(char **argv, int idx, int cnt);
void loc_set_file(const char *fname, int lno);
int error_vprintf(const char *fmt, va_list ap) GCC_FMT_ATTR(1, 0);
int error_printf(const char *fmt, ...) GCC_FMT_ATTR(1, 2);
int error_vprintf_unless_qmp(const char *fmt, va_list ap) GCC_FMT_ATTR(1, 0);
int error_printf_unless_qmp(const char *fmt, ...) GCC_FMT_ATTR(1, 2);
void error_vreport(const char *fmt, va_list ap) GCC_FMT_ATTR(1, 0);
void warn_vreport(const char *fmt, va_list ap) GCC_FMT_ATTR(1, 0);
void info_vreport(const char *fmt, va_list ap) GCC_FMT_ATTR(1, 0);
void error_report(const char *fmt, ...) GCC_FMT_ATTR(1, 2);
void warn_report(const char *fmt, ...) GCC_FMT_ATTR(1, 2);
void info_report(const char *fmt, ...) GCC_FMT_ATTR(1, 2);
bool error_report_once_cond(bool *printed, const char *fmt, ...)
GCC_FMT_ATTR(2, 3);
bool warn_report_once_cond(bool *printed, const char *fmt, ...)
GCC_FMT_ATTR(2, 3);
void error_init(const char *argv0);
/*
* Similar to error_report(), except it prints the message just once.
* Return true when it prints, false otherwise.
*/
#define error_report_once(fmt, ...) \
({ \
static bool print_once_; \
error_report_once_cond(&print_once_, \
fmt, ##__VA_ARGS__); \
})
/*
* Similar to warn_report(), except it prints the message just once.
* Return true when it prints, false otherwise.
*/
#define warn_report_once(fmt, ...) \
({ \
static bool print_once_; \
warn_report_once_cond(&print_once_, \
fmt, ##__VA_ARGS__); \
})
const char *error_get_progname(void);
extern bool error_with_timestamp;
extern bool error_with_guestname;
extern const char *error_guest_name;
#endif