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| author | Jiri Olsa <jolsa@kernel.org> | 2018-02-06 19:18:01 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-02-16 14:09:23 +0100 |
| commit | d9c5f32240f503481291a6d4e7246ee0a128d76d (patch) | |
| tree | 93ac941861ec018e1511ba129df3d33d705fc90b | |
| parent | tools lib api fs: Add filename__read_xll function (diff) | |
| download | linux-d9c5f32240f503481291a6d4e7246ee0a128d76d.tar.xz linux-d9c5f32240f503481291a6d4e7246ee0a128d76d.zip | |
tools lib api fs: Add sysfs__read_xll function
Adding sysfs__read_xll function to be able to read sysfs files with hex
numbers in, which do not have 0x prefix.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180206181813.10943-6-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/lib/api/fs/fs.c | 15 | ||||
| -rw-r--r-- | tools/lib/api/fs/fs.h | 1 |
2 files changed, 14 insertions, 2 deletions
diff --git a/tools/lib/api/fs/fs.c b/tools/lib/api/fs/fs.c index 8b0e4a4315bd..6a12bbf39f7b 100644 --- a/tools/lib/api/fs/fs.c +++ b/tools/lib/api/fs/fs.c @@ -432,7 +432,8 @@ int procfs__read_str(const char *entry, char **buf, size_t *sizep) return filename__read_str(path, buf, sizep); } -int sysfs__read_ull(const char *entry, unsigned long long *value) +static int sysfs__read_ull_base(const char *entry, + unsigned long long *value, int base) { char path[PATH_MAX]; const char *sysfs = sysfs__mountpoint(); @@ -442,7 +443,17 @@ int sysfs__read_ull(const char *entry, unsigned long long *value) snprintf(path, sizeof(path), "%s/%s", sysfs, entry); - return filename__read_ull(path, value); + return filename__read_ull_base(path, value, base); +} + +int sysfs__read_xll(const char *entry, unsigned long long *value) +{ + return sysfs__read_ull_base(entry, value, 16); +} + +int sysfs__read_ull(const char *entry, unsigned long long *value) +{ + return sysfs__read_ull_base(entry, value, 0); } int sysfs__read_int(const char *entry, int *value) diff --git a/tools/lib/api/fs/fs.h b/tools/lib/api/fs/fs.h index 8ebee35a6395..92d03b8396b1 100644 --- a/tools/lib/api/fs/fs.h +++ b/tools/lib/api/fs/fs.h @@ -40,6 +40,7 @@ int procfs__read_str(const char *entry, char **buf, size_t *sizep); int sysctl__read_int(const char *sysctl, int *value); int sysfs__read_int(const char *entry, int *value); int sysfs__read_ull(const char *entry, unsigned long long *value); +int sysfs__read_xll(const char *entry, unsigned long long *value); int sysfs__read_str(const char *entry, char **buf, size_t *sizep); int sysfs__read_bool(const char *entry, bool *value); |