Commit-ID: d9c5f32240f503481291a6d4e7246ee0a128d76d Gitweb: https://git.kernel.org/tip/d9c5f32240f503481291a6d4e7246ee0a128d76d Author: Jiri Olsa <jo...@kernel.org> AuthorDate: Tue, 6 Feb 2018 19:18:01 +0100 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> CommitDate: Fri, 16 Feb 2018 10:09:23 -0300
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 <jo...@kernel.org> Cc: Alexander Shishkin <alexander.shish...@linux.intel.com> Cc: David Ahern <dsah...@gmail.com> Cc: Namhyung Kim <namhy...@kernel.org> Cc: Peter Zijlstra <pet...@infradead.org> Link: http://lkml.kernel.org/r/20180206181813.10943-6-jo...@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/lib/api/fs/fs.c | 15 +++++++++++++-- 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 8b0e4a4..6a12bbf 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 8ebee35..92d03b8 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);
