[PATCH v2] libtracefs: make it build against musl C library

["Tzvetomir Stoyanov (VMware)" <tz.stoyanov@gmail.com>]

From: Beniamin Sandu <beniaminsandu@gmail.com>

* add some missing headers and macros
* set pthread affinity using pthread_setaffinity_np after creating the thread
instead of pthread_attr_setaffinity_np (which seems to not be implemented
in musl)

Tested using https://musl.cc/x86_64-linux-musl-native.tgz

Link: https://lore.kernel.org/linux-trace-devel/20201130122755.31000-1-beniaminsandu@gmail.com

Reviewed-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
Signed-off-by: Beniamin Sandu <beniaminsandu@gmail.com>
[ Fixed a whitespace issue ]
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
---
 include/tracefs-local.h | 12 ++++++++++++
 tracefs-events.c        |  1 +
 2 files changed, 13 insertions(+)

diff --git a/include/tracefs-local.h b/include/tracefs-local.h
index 9cc371b..bdbf89e 100644
--- a/include/tracefs-local.h
+++ b/include/tracefs-local.h
@@ -13,4 +13,16 @@ void warning(const char *fmt, ...);
 int str_read_file(const char *file, char **buffer);
 char *trace_append_file(const char *dir, const char *name);
 
+#ifndef ACCESSPERMS
+#define ACCESSPERMS (S_IRWXU|S_IRWXG|S_IRWXO) /* 0777 */
+#endif
+
+#ifndef ALLPERMS
+#define ALLPERMS (S_ISUID|S_ISGID|S_ISVTX|S_IRWXU|S_IRWXG|S_IRWXO) /* 07777 */
+#endif
+
+#ifndef DEFFILEMODE
+#define DEFFILEMODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH) /* 0666*/
+#endif
+
 #endif /* _TRACE_FS_LOCAL_H */
diff --git a/tracefs-events.c b/tracefs-events.c
index ca1d22b..ee45988 100644
--- a/tracefs-events.c
+++ b/tracefs-events.c
@@ -13,6 +13,7 @@
 #include <errno.h>
 #include <sys/stat.h>
 #include <fcntl.h>
+#include <limits.h>
 
 #include <traceevent/kbuffer.h>
 
-- 
2.28.0