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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>
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@ -908,6 +908,10 @@ struct syscall {
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struct syscall_arg_fmt *arg_fmt;
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};
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struct bpf_map_syscall_entry {
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bool enabled;
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};
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/*
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* We need to have this 'calculated' boolean because in some cases we really
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* don't know what is the duration of a syscall, for instance, when we start
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@ -2583,7 +2587,9 @@ static int trace__set_ev_qualifier_tp_filter(struct trace *trace)
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static int trace__set_ev_qualifier_bpf_filter(struct trace *trace)
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{
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int fd = bpf_map__fd(trace->syscalls.map);
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bool value = !trace->not_ev_qualifier;
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struct bpf_map_syscall_entry value = {
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.enabled = !trace->not_ev_qualifier,
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};
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int err = 0;
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size_t i;
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@ -2601,10 +2607,13 @@ static int trace__set_ev_qualifier_bpf_filter(struct trace *trace)
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static int __trace__init_syscalls_bpf_map(struct trace *trace, bool enabled)
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{
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int fd = bpf_map__fd(trace->syscalls.map);
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struct bpf_map_syscall_entry value = {
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.enabled = enabled,
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};
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int err = 0, key;
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for (key = 0; key < trace->sctbl->syscalls.nr_entries; ++key) {
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err = bpf_map_update_elem(fd, &key, &enabled, BPF_ANY);
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err = bpf_map_update_elem(fd, &key, &value, BPF_ANY);
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if (err)
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break;
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}
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