procfs: add a helper function to access /proc/$pid/syscall

Signed-off-by: Masatake YAMATO <yamato@redhat.com>

diff --git a/include/procfs.h b/include/procfs.h
index 25be51357d7d65aa09fc279ca6fd9626f6dd2748..14625e0ba4ecc275820b080387db7873429feb7f 100644 (file)
--- a/include/procfs.h
+++ b/include/procfs.h
@@ -32,6 +32,7 @@ extern int procfs_process_get_uid(struct path_cxt *pc, uid_t *uid);
 extern ssize_t procfs_process_get_cmdline(struct path_cxt *pc, char *buf, size_t bufsz);
 extern ssize_t procfs_process_get_cmdname(struct path_cxt *pc, char *buf, size_t bufsz);
 extern ssize_t procfs_process_get_stat(struct path_cxt *pc, char *buf, size_t bufsz);
+extern ssize_t procfs_process_get_syscall(struct path_cxt *pc, char *buf, size_t bufsz);
 
 extern int procfs_process_get_stat_nth(struct path_cxt *pc, int n, uintmax_t *re);
 

diff --git a/lib/procfs.c b/lib/procfs.c
index aff20fb6605cf58f0c0e0312ea294127ba51ba1a..59f40ffbb0552b30fa284a9da0d9bde70f9fc660 100644 (file)
--- a/lib/procfs.c
+++ b/lib/procfs.c
@@ -169,6 +169,11 @@ ssize_t procfs_process_get_stat(struct path_cxt *pc, char *buf, size_t bufsz)
        return procfs_process_get_data_for(pc, buf, bufsz, "stat");
 }
 
+ssize_t procfs_process_get_syscall(struct path_cxt *pc, char *buf, size_t bufsz)
+{
+       return procfs_process_get_data_for(pc, buf, bufsz, "syscall");
+}
+
 int procfs_process_get_stat_nth(struct path_cxt *pc, int n, uintmax_t *re)
 {
        ssize_t rc;