On 08/06/2014 10:06 PM, Andrew Morton wrote: > On Wed, 6 Aug 2014 13:34:26 +0200 Thierry FAUCK - IBM LTC > <thie...@linux.vnet.ibm.com> wrote: > >> --- 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, \ > More details, please. What are "some systems"? > Sorry, about that "common description". A more appropriate one could be : 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.
Is that a better explanation ? -- Thierry Fauck @ linux.vnet.ibm -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
