diff options
| -rw-r--r-- | fs/coredump.c | 5 | ||||
| -rw-r--r-- | include/trace/events/coredump.h | 45 |
2 files changed, 50 insertions, 0 deletions
diff --git a/fs/coredump.c b/fs/coredump.c index 4ce7c80b39c8..bc7009b3eedc 100644 --- a/fs/coredump.c +++ b/fs/coredump.c @@ -63,6 +63,9 @@ #include <trace/events/sched.h> +#define CREATE_TRACE_POINTS +#include <trace/events/coredump.h> + static bool dump_vma_snapshot(struct coredump_params *cprm); static void free_vma_snapshot(struct coredump_params *cprm); @@ -1090,6 +1093,8 @@ static inline bool coredump_skip(const struct coredump_params *cprm, static void do_coredump(struct core_name *cn, struct coredump_params *cprm, size_t **argv, int *argc, const struct linux_binfmt *binfmt) { + trace_coredump(cprm->siginfo->si_signo); + if (!coredump_parse(cn, cprm, argv, argc)) { coredump_report_failure("format_corename failed, aborting core"); return; diff --git a/include/trace/events/coredump.h b/include/trace/events/coredump.h new file mode 100644 index 000000000000..c7b9c53fc498 --- /dev/null +++ b/include/trace/events/coredump.h @@ -0,0 +1,45 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2026 Meta Platforms, Inc. and affiliates. + * Copyright (c) 2026 Breno Leitao <leitao@debian.org> + */ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM coredump + +#if !defined(_TRACE_COREDUMP_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_COREDUMP_H + +#include <linux/sched.h> +#include <linux/tracepoint.h> + +/** + * coredump - called when a coredump starts + * @sig: signal number that triggered the coredump + * + * This tracepoint fires at the beginning of a coredump attempt, + * providing a stable interface for monitoring coredump events. + */ +TRACE_EVENT(coredump, + + TP_PROTO(int sig), + + TP_ARGS(sig), + + TP_STRUCT__entry( + __field(int, sig) + __array(char, comm, TASK_COMM_LEN) + ), + + TP_fast_assign( + __entry->sig = sig; + memcpy(__entry->comm, current->comm, TASK_COMM_LEN); + ), + + TP_printk("sig=%d comm=%s", + __entry->sig, __entry->comm) +); + +#endif /* _TRACE_COREDUMP_H */ + +/* This part must be outside protection */ +#include <trace/define_trace.h> |