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Commit bbab50dd authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo
Browse files

perf trace: Switch to using a struct for the aumented_raw_syscalls syscalls map values 

We'll start adding more perf-syscall stuff, so lets do this prep step so
that the next ones are just about adding more fields.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-vac4sn1ns1vj4y07lzj7y4b8@git.kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 27f2992e

tools/perf/builtin-trace.c

+11 −2
Original line number Diff line number Diff line
@@ -908,6 +908,10 @@ struct syscall { 
	struct syscall_arg_fmt *arg_fmt;

};



struct bpf_map_syscall_entry {

	bool	enabled;

};



/*

 * We need to have this 'calculated' boolean because in some cases we really

 * don't know what is the duration of a syscall, for instance, when we start
@@ -2583,7 +2587,9 @@ static int trace__set_ev_qualifier_tp_filter(struct trace *trace) 
static int trace__set_ev_qualifier_bpf_filter(struct trace *trace)

{

	int fd = bpf_map__fd(trace->syscalls.map);

	bool value = !trace->not_ev_qualifier;

	struct bpf_map_syscall_entry value = {

		.enabled = !trace->not_ev_qualifier,

	};

	int err = 0;

	size_t i;
@@ -2601,10 +2607,13 @@ static int trace__set_ev_qualifier_bpf_filter(struct trace *trace) 
static int __trace__init_syscalls_bpf_map(struct trace *trace, bool enabled)

{

	int fd = bpf_map__fd(trace->syscalls.map);

	struct bpf_map_syscall_entry value = {

		.enabled = enabled,

	};

	int err = 0, key;



	for (key = 0; key < trace->sctbl->syscalls.nr_entries; ++key) {

		err = bpf_map_update_elem(fd, &key, &enabled, BPF_ANY);

		err = bpf_map_update_elem(fd, &key, &value, BPF_ANY);

		if (err)

			break;

	}