tools/testing/selftests/ptrace/peeksiginfo.c bug

Thierry FAUCK thierry.fauck at
Tue Apr 8 06:09:16 EST 2014


Here is a fix to allow compilation of
tools/testing/selftests/ptrace/peeksiginfo.c on ppc64/ppc64el.
Canonical is waiting for the patch to be upstream.


>From 48a9a9834377a74b603be12dcc76cda24105e33c Mon Sep 17 00:00:00 2001
From: Thierry Fauck <thierry at>
Date: Fri, 28 Feb 2014 16:17:50 +0100
Subject: [PATCH] power: PAGE_SIZE may not be defined

Some systems have a dynamic PAGE_SIZE value and do not add a definition
for PAGE_SIZE. This value will have to be retrieved using getpagesize()
or sysconf().

Signed-off-by: Thierry Fauck <thierry at>
 tools/testing/selftests/ptrace/peeksiginfo.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/ptrace/peeksiginfo.c
index d46558b..f2ccbbd 100644
--- a/tools/testing/selftests/ptrace/peeksiginfo.c
+++ b/tools/testing/selftests/ptrace/peeksiginfo.c
@@ -35,7 +35,9 @@ static int sys_ptrace(int request, pid_t pid, void
*addr, void *data)
   fprintf(stderr, \
    "Error (%s:%d): " fmt, \
    __FILE__, __LINE__, ##__VA_ARGS__)
+#ifndef PAGE_SIZE
+#define PAGE_SIZE sysconf(_SC_PAGESIZE)
 static int check_error_paths(pid_t child)
  struct ptrace_peeksiginfo_args arg;

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