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perf config: Bring perf_default_config to the very beginning at main()

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Before this patch each subcommand calls perf_config() by themself,
reading the default configuration together with subcommand specific
options. If a subcommand doesn't have it own options, it needs to call
'perf_config(perf_default_config, NULL)' to ensure .perfconfig is
loaded.

This patch brings perf_config(perf_default_config, NULL) to the very
start of main(), so subcommands don't need to do it.

After this patch, 'llvm.clang-path' works for 'perf trace'.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Suggested-and-Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1456479154-136027-4-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Wang Nan
2016-02-26 09:31:51 +00:00
committed by Arnaldo Carvalho de Melo
parent abab5e7fce
commit b8cbb34906
10 changed files with 15 additions and 21 deletions
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8
tools/perf/tests/llvm.c
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@@ -6,12 +6,6 @@
#include "tests.h"
#include "debug.h"
static int perf_config_cb(const char *var, const char *val,
void *arg __maybe_unused)
{
return perf_default_config(var, val, arg);
}
#ifdef HAVE_LIBBPF_SUPPORT
static int test__bpf_parsing(void *obj_buf, size_t obj_buf_sz)
{
@@ -77,8 +71,6 @@ test_llvm__fetch_bpf_obj(void **p_obj_buf,
if (should_load_fail)
*should_load_fail = bpf_source_table[idx].should_load_fail;
perf_config(perf_config_cb, NULL);
/*
* Skip this test if user's .perfconfig doesn't set [llvm] section
* and clang is not found in $PATH, and this is not perf test -v