tools/testing/selftests/ptrace/peeksiginfo.c: add PAGE_SIZE definition

On IBM powerpc where multiple page size value are supported, current ppc64 and ppc64el distro don't define the PAGE_SIZE variable in /usr/include as this is a dynamic value retrieved by the getpagesize() or sysconf() defined in unistd.h. The PAGE_SIZE variable sounds defined when only one value is supported by the kernel. As such, when the PAGE_SIZE definition doesn't exist system should retrieve the dynamic value. Signed-off-by: Thierry Fauck <[email protected]> Cc: Andrey Vagin <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
kyagi · Aug 8, 2014 · 8b6aaf6 · 8b6aaf6
1 parent 89b3ac6
commit 8b6aaf6
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/tools/testing/selftests/ptrace/peeksiginfo.c b/tools/testing/selftests/ptrace/peeksiginfo.c
@@ -31,6 +31,10 @@ static int sys_ptrace(int request, pid_t pid, void *addr, void *data)
 #define TEST_SICODE_PRIV	-1
 #define TEST_SICODE_SHARE	-2
 
+#ifndef PAGE_SIZE
+#define PAGE_SIZE sysconf(_SC_PAGESIZE)
+#endif
+
 #define err(fmt, ...)						\
 		fprintf(stderr,					\
 			"Error (%s:%d): " fmt,			\