mirror of
https://github.com/torvalds/linux
synced 2024-11-05 18:23:50 +00:00
0bdfbd04c6
Dump kmaps if using 'perf --debug kmaps' or verbose > 2 (e.g. -vvv) for tools 'perf script' and 'perf report' if there is no browser. Example: $ perf --debug kmaps script 2>&1 >/dev/null | grep kvm.intel build id event received for /lib/modules/6.7.2-local/kernel/arch/x86/kvm/kvm-intel.ko: 0691d75e10e72ebbbd45a44c59f6d00a5604badf [20] Map: 0-3a3 4f5d8 [kvm_intel].modinfo Map: 0-5240 5f280 [kvm_intel]__versions Map: 0-30 64 [kvm_intel].note.Linux Map: 0-14 644c0 [kvm_intel].orc_header Map: 0-5297 43680 [kvm_intel].rodata Map: 0-5bee 3b837 [kvm_intel].text.unlikely Map: 0-7e0 41430 [kvm_intel].noinstr.text Map: 0-2080 713c0 [kvm_intel].bss Map: 0-26 705c8 [kvm_intel].data..read_mostly Map: 0-5888 6a4c0 [kvm_intel].data Map: 0-22 70220 [kvm_intel].data.once Map: 0-40 705f0 [kvm_intel].data..percpu Map: 0-1685 41d20 [kvm_intel].init.text Map: 0-4b8 6fd60 [kvm_intel].init.data Map: 0-380 70248 [kvm_intel]__dyndbg Map: 0-8 70218 [kvm_intel].exit.data Map: 0-438 4f980 [kvm_intel]__param Map: 0-5f5 4ca0f [kvm_intel].rodata.str1.1 Map: 0-3657 493b8 [kvm_intel].rodata.str1.8 Map: 0-e0 70640 [kvm_intel].data..ro_after_init Map: 0-500 70ec0 [kvm_intel].gnu.linkonce.this_module Map: ffffffffc13a7000-ffffffffc1421000 a0 /lib/modules/6.7.2-local/kernel/arch/x86/kvm/kvm-intel.ko The example above shows how the module section mappings are all wrong except for the main .text mapping at 0xffffffffc13a7000. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Like Xu <like.xu.linux@gmail.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Link: https://lore.kernel.org/r/20240208085326.13432-2-adrian.hunter@intel.com
90 lines
2.7 KiB
C
90 lines
2.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/* For debugging general purposes */
|
|
#ifndef __PERF_DEBUG_H
|
|
#define __PERF_DEBUG_H
|
|
|
|
#include <stdarg.h>
|
|
#include <stdbool.h>
|
|
#include <stdio.h>
|
|
#include <linux/compiler.h>
|
|
|
|
extern int verbose;
|
|
extern int debug_kmaps;
|
|
extern int debug_peo_args;
|
|
extern bool quiet, dump_trace;
|
|
extern int debug_ordered_events;
|
|
extern int debug_data_convert;
|
|
|
|
#ifndef pr_fmt
|
|
#define pr_fmt(fmt) fmt
|
|
#endif
|
|
|
|
#define pr_err(fmt, ...) \
|
|
eprintf(0, verbose, pr_fmt(fmt), ##__VA_ARGS__)
|
|
#define pr_warning(fmt, ...) \
|
|
eprintf(0, verbose, pr_fmt(fmt), ##__VA_ARGS__)
|
|
#define pr_warning_once(fmt, ...) ({ \
|
|
static int __warned; \
|
|
if (unlikely(!__warned)) { \
|
|
pr_warning(fmt, ##__VA_ARGS__); \
|
|
__warned = 1; \
|
|
} \
|
|
})
|
|
#define pr_info(fmt, ...) \
|
|
eprintf(0, verbose, pr_fmt(fmt), ##__VA_ARGS__)
|
|
#define pr_debug(fmt, ...) \
|
|
eprintf(1, verbose, pr_fmt(fmt), ##__VA_ARGS__)
|
|
#define pr_debugN(n, fmt, ...) \
|
|
eprintf(n, verbose, pr_fmt(fmt), ##__VA_ARGS__)
|
|
#define pr_debug2(fmt, ...) pr_debugN(2, pr_fmt(fmt), ##__VA_ARGS__)
|
|
#define pr_debug3(fmt, ...) pr_debugN(3, pr_fmt(fmt), ##__VA_ARGS__)
|
|
#define pr_debug4(fmt, ...) pr_debugN(4, pr_fmt(fmt), ##__VA_ARGS__)
|
|
|
|
/* Special macro to print perf_event_open arguments/return value. */
|
|
#define pr_debug2_peo(fmt, ...) { \
|
|
if (debug_peo_args) \
|
|
pr_debugN(0, pr_fmt(fmt), ##__VA_ARGS__); \
|
|
else \
|
|
pr_debugN(2, pr_fmt(fmt), ##__VA_ARGS__); \
|
|
}
|
|
|
|
#define pr_time_N(n, var, t, fmt, ...) \
|
|
eprintf_time(n, var, t, fmt, ##__VA_ARGS__)
|
|
|
|
#define pr_oe_time(t, fmt, ...) pr_time_N(1, debug_ordered_events, t, pr_fmt(fmt), ##__VA_ARGS__)
|
|
#define pr_oe_time2(t, fmt, ...) pr_time_N(2, debug_ordered_events, t, pr_fmt(fmt), ##__VA_ARGS__)
|
|
|
|
#define STRERR_BUFSIZE 128 /* For the buffer size of str_error_r */
|
|
|
|
union perf_event;
|
|
|
|
int dump_printf(const char *fmt, ...) __printf(1, 2);
|
|
void trace_event(union perf_event *event);
|
|
|
|
int ui__error(const char *format, ...) __printf(1, 2);
|
|
int ui__warning(const char *format, ...) __printf(1, 2);
|
|
#define ui__warning_once(format, ...) ({ \
|
|
static int __warned; \
|
|
if (unlikely(!__warned)) { \
|
|
ui__warning(format, ##__VA_ARGS__); \
|
|
__warned = 1; \
|
|
} \
|
|
})
|
|
|
|
void pr_stat(const char *fmt, ...);
|
|
|
|
int eprintf(int level, int var, const char *fmt, ...) __printf(3, 4);
|
|
int eprintf_time(int level, int var, u64 t, const char *fmt, ...) __printf(4, 5);
|
|
int veprintf(int level, int var, const char *fmt, va_list args);
|
|
|
|
int perf_debug_option(const char *str);
|
|
FILE *debug_file(void);
|
|
void debug_set_file(FILE *file);
|
|
void debug_set_display_time(bool set);
|
|
void perf_debug_setup(void);
|
|
int perf_quiet_option(void);
|
|
|
|
void dump_stack(void);
|
|
void sighandler_dump_stack(int sig);
|
|
|
|
#endif /* __PERF_DEBUG_H */
|