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qemu/qemu-error.h

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error: New error_printf() and error_vprintf()
2010-02-19 00:14:17 +08:00
/*
* 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.
*/
error: Move qemu_error & friends into their own header
2010-02-18 23:24:31 +08:00
#ifndef QEMU_ERROR_H
#define QEMU_ERROR_H
error: Infrastructure to track locations for error reporting New struct Location holds a location. So far, the only location is LOC_NONE, so this doesn't do anything useful yet. Passing the current location all over the place would be too cumbersome. Hide it away in static cur_loc instead, and provide accessors. Print it in error_report(). Store it in QError, and print it in qerror_print(). Store it in QemuOpt, for use by qemu_opts_foreach(). This makes error_report() do the right thing when it runs within qemu_opts_foreach(). We may still have to store it in other data structures holding user input for better error messages. Left for another day.
2010-02-19 02:46:49 +08:00
typedef struct Location {
/* all members are private to qemu-error.c */
error: Track locations on command line New LOC_CMDLINE. Use it for tracking option with argument in lookup_opt(). We now report errors like this qemu: -device smbus-eeprom: Did not find I2C bus for smbus-eeprom
2010-02-19 03:13:51 +08:00
enum { LOC_NONE, LOC_CMDLINE, LOC_FILE } kind;
error: Infrastructure to track locations for error reporting New struct Location holds a location. So far, the only location is LOC_NONE, so this doesn't do anything useful yet. Passing the current location all over the place would be too cumbersome. Hide it away in static cur_loc instead, and provide accessors. Print it in error_report(). Store it in QError, and print it in qerror_print(). Store it in QemuOpt, for use by qemu_opts_foreach(). This makes error_report() do the right thing when it runs within qemu_opts_foreach(). We may still have to store it in other data structures holding user input for better error messages. Left for another day.
2010-02-19 02:46:49 +08:00
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);
error: Track locations on command line New LOC_CMDLINE. Use it for tracking option with argument in lookup_opt(). We now report errors like this qemu: -device smbus-eeprom: Did not find I2C bus for smbus-eeprom
2010-02-19 03:13:51 +08:00
void loc_set_cmdline(char **argv, int idx, int cnt);
error: Track locations in configuration files New LOC_FILE. Use it for tracking file name and line number in qemu_config_parse(). We now report errors like qemu:foo.conf:42: Did not find I2C bus for smbus-eeprom In particular, gems like this message: -device: no driver specified become almost nice now: qemu:foo.conf:44: -device: no driver specified (A later commit will get rid of the bogus -device:)
2010-02-19 02:48:33 +08:00
void loc_set_file(const char *fname, int lno);
error: Infrastructure to track locations for error reporting New struct Location holds a location. So far, the only location is LOC_NONE, so this doesn't do anything useful yet. Passing the current location all over the place would be too cumbersome. Hide it away in static cur_loc instead, and provide accessors. Print it in error_report(). Store it in QError, and print it in qerror_print(). Store it in QemuOpt, for use by qemu_opts_foreach(). This makes error_report() do the right thing when it runs within qemu_opts_foreach(). We may still have to store it in other data structures holding user input for better error messages. Left for another day.
2010-02-19 02:46:49 +08:00
error: New error_printf() and error_vprintf()
2010-02-19 00:14:17 +08:00
void error_vprintf(const char *fmt, va_list ap);
void error_printf(const char *fmt, ...) __attribute__ ((format(printf, 1, 2)));
error: New error_printf_unless_qmp()
2010-02-19 17:30:05 +08:00
void error_printf_unless_qmp(const char *fmt, ...)
__attribute__ ((format(printf, 1, 2)));
error: Infrastructure to track locations for error reporting New struct Location holds a location. So far, the only location is LOC_NONE, so this doesn't do anything useful yet. Passing the current location all over the place would be too cumbersome. Hide it away in static cur_loc instead, and provide accessors. Print it in error_report(). Store it in QError, and print it in qerror_print(). Store it in QemuOpt, for use by qemu_opts_foreach(). This makes error_report() do the right thing when it runs within qemu_opts_foreach(). We may still have to store it in other data structures holding user input for better error messages. Left for another day.
2010-02-19 02:46:49 +08:00
void error_print_loc(void);
error: Include the program name in error messages to stderr
2010-02-24 21:37:14 +08:00
void error_set_progname(const char *argv0);
error: Replace qemu_error() by error_report() error_report() terminates the message with a newline. Strip it it from its arguments. This fixes a few error messages lacking a newline: net_handle_fd_param()'s "No file descriptor named %s found", and tap_open()'s "vnet_hdr=1 requested, but no kernel support for IFF_VNET_HDR available" (all three versions). There's one place that passes arguments without newlines intentionally: load_vmstate(). Fix it up.
2010-02-19 00:25:24 +08:00
void error_report(const char *fmt, ...) __attribute__ ((format(printf, 1, 2)));
error: Move qemu_error & friends into their own header
2010-02-18 23:24:31 +08:00
#endif