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Fix test-sysvsem on some platforms

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The command IPC_STAT of semctl expects an union semun in its fourth
argument instead of struct semid_ds *.  This can cause failures on
powerpc32-linux-gnu.

Checked on x86_64-linux-gnu, i686-linux-gnu, and powerpc32-linux-gnu
(qemu system emulation).
This commit is contained in:
Adhemerval Zanella 2017-01-02 16:19:48 -02:00
parent e082ac7533
commit cbce12d22b
2 changed files with 13 additions and 1 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2017-01-02 Adhemerval Zanella <adhemerval.zanella@linaro.org>
* sysvipc/test-sysvsem.c (do_test): Define and use union semun on
semctl.
2017-01-02 Joseph Myers <joseph@codesourcery.com>
* math/test-nearbyint-except.c: Include <stdbool.h>.

9
sysvipc/test-sysvsem.c
View File

@ -55,6 +55,13 @@ do_prepare (int argc, char *argv[])
#define SEM_MODE 0644
union semun
{
int val;
struct semid_ds *buf;
unsigned short *array;
};
static int
do_test (void)
{
@ -74,7 +81,7 @@ do_test (void)
/* Get semaphore kernel information and do some sanity checks. */
struct semid_ds seminfo;
if (semctl (semid, 0, IPC_STAT, &seminfo) == -1)
if (semctl (semid, 0, IPC_STAT, (union semun) { .buf = &seminfo }) == -1)
FAIL_EXIT1 ("semctl with IPC_STAT failed (errno=%d)", errno);
if (seminfo.sem_perm.__key != key)