From bd29da58046aa772c775548ee6f502cc5f3aa489 Mon Sep 17 00:00:00 2001 From: Leo Yan Date: Mon, 21 Nov 2022 07:52:33 +0000 Subject: perf trace: Use macro RAW_SYSCALL_ARGS_NUM to replace number [ Upstream commit eadcab4c7a66e1df03d32da0db55d89fd9343fcc ] This patch defines a macro RAW_SYSCALL_ARGS_NUM to replace the open coded number '6'. Signed-off-by: Leo Yan Acked-by: Ian Rogers Cc: Alexander Shishkin Cc: Ingo Molnar Cc: Jiri Olsa Cc: Mark Rutland Cc: Namhyung Kim Cc: Peter Zijlstra Cc: bpf@vger.kernel.org Link: https://lore.kernel.org/r/20221121075237.127706-2-leo.yan@linaro.org Signed-off-by: Arnaldo Carvalho de Melo Stable-dep-of: 03e9a5d8eb55 ("perf trace: Handle failure when trace point folder is missed") Signed-off-by: Sasha Levin --- tools/perf/builtin-trace.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) (limited to 'tools') diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 555e16d8d55b..1a7279687f25 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -87,6 +87,8 @@ # define F_LINUX_SPECIFIC_BASE 1024 #endif +#define RAW_SYSCALL_ARGS_NUM 6 + /* * strtoul: Go from a string to a value, i.e. for msr: MSR_FS_BASE to 0xc0000100 */ @@ -107,7 +109,7 @@ struct syscall_fmt { const char *sys_enter, *sys_exit; } bpf_prog_name; - struct syscall_arg_fmt arg[6]; + struct syscall_arg_fmt arg[RAW_SYSCALL_ARGS_NUM]; u8 nr_args; bool errpid; bool timeout; @@ -1216,7 +1218,7 @@ struct syscall { */ struct bpf_map_syscall_entry { bool enabled; - u16 string_args_len[6]; + u16 string_args_len[RAW_SYSCALL_ARGS_NUM]; }; /* @@ -1641,7 +1643,7 @@ static int syscall__alloc_arg_fmts(struct syscall *sc, int nr_args) { int idx; - if (nr_args == 6 && sc->fmt && sc->fmt->nr_args != 0) + if (nr_args == RAW_SYSCALL_ARGS_NUM && sc->fmt && sc->fmt->nr_args != 0) nr_args = sc->fmt->nr_args; sc->arg_fmt = calloc(nr_args, sizeof(*sc->arg_fmt)); @@ -1792,7 +1794,8 @@ static int trace__read_syscall_info(struct trace *trace, int id) sc->tp_format = trace_event__tp_format("syscalls", tp_name); } - if (syscall__alloc_arg_fmts(sc, IS_ERR(sc->tp_format) ? 6 : sc->tp_format->format.nr_fields)) + if (syscall__alloc_arg_fmts(sc, IS_ERR(sc->tp_format) ? + RAW_SYSCALL_ARGS_NUM : sc->tp_format->format.nr_fields)) return -ENOMEM; if (IS_ERR(sc->tp_format)) -- cgit v1.2.3