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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: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2018-12-12 16:54:09 -03:00
parent 27f2992e7b
commit bbab50dda7
1 changed files with 11 additions and 2 deletions
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13
tools/perf/builtin-trace.c
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@ -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;
}