diff options
| author | Laurent Vivier <laurent@vivier.eu> | 2019-05-23 19:54:13 +0200 |
|---|---|---|
| committer | Aleksandar Markovic <amarkovic@wavecomp.com> | 2019-05-26 17:44:33 +0200 |
| commit | 86e636951ddce2bb3a82fcaad5abc3779ba4f7ab (patch) | |
| tree | 7486f6f04fea31a53729c0b411742354ee75013c /linux-user | |
| parent | 7353113fa482e697a77575086a41f429a01f8dc0 (diff) | |
linux-user: fix __NR_semtimedop undeclared error
In current code, __NR_msgrcv and__NR_semtimedop are supposed to be
defined if __NR_msgsnd is defined.
But linux headers 5.2-rc1 for MIPS define __NR_msgsnd without defining
__NR_semtimedop and it breaks the QEMU build.
__NR_semtimedop is defined in asm-mips/unistd_n64.h and asm-mips/unistd_n32.h
but not in asm-mips/unistd_o32.h.
Commit d9cb4336159a ("linux headers: update against Linux 5.2-rc1") has
updated asm-mips/unistd_o32.h and added __NR_msgsnd but not __NR_semtimedop.
It introduces __NR_semtimedop_time64 instead.
This patch fixes the problem by checking for each __NR_XXX symbol
before defining the corresponding syscall.
Fixes: d9cb4336159a ("linux headers: update against Linux 5.2-rc1")
Reported-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20190523175413.14448-1-laurent@vivier.eu>
Diffstat (limited to 'linux-user')
| -rw-r--r-- | linux-user/syscall.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 55212585e0..5e29e675e9 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -763,14 +763,7 @@ safe_syscall2(int, nanosleep, const struct timespec *, req, safe_syscall4(int, clock_nanosleep, const clockid_t, clock, int, flags, const struct timespec *, req, struct timespec *, rem) #endif -#ifdef __NR_msgsnd -safe_syscall4(int, msgsnd, int, msgid, const void *, msgp, size_t, sz, - int, flags) -safe_syscall5(int, msgrcv, int, msgid, void *, msgp, size_t, sz, - long, msgtype, int, flags) -safe_syscall4(int, semtimedop, int, semid, struct sembuf *, tsops, - unsigned, nsops, const struct timespec *, timeout) -#else +#if !defined(__NR_msgsnd) || !defined(__NR_msgrcv) || !defined(__NR_semtimedop) /* This host kernel architecture uses a single ipc syscall; fake up * wrappers for the sub-operations to hide this implementation detail. * Annoyingly we can't include linux/ipc.h to get the constant definitions @@ -785,14 +778,29 @@ safe_syscall4(int, semtimedop, int, semid, struct sembuf *, tsops, safe_syscall6(int, ipc, int, call, long, first, long, second, long, third, void *, ptr, long, fifth) +#endif +#ifdef __NR_msgsnd +safe_syscall4(int, msgsnd, int, msgid, const void *, msgp, size_t, sz, + int, flags) +#else static int safe_msgsnd(int msgid, const void *msgp, size_t sz, int flags) { return safe_ipc(Q_IPCCALL(0, Q_MSGSND), msgid, sz, flags, (void *)msgp, 0); } +#endif +#ifdef __NR_msgrcv +safe_syscall5(int, msgrcv, int, msgid, void *, msgp, size_t, sz, + long, msgtype, int, flags) +#else static int safe_msgrcv(int msgid, void *msgp, size_t sz, long type, int flags) { return safe_ipc(Q_IPCCALL(1, Q_MSGRCV), msgid, sz, flags, msgp, type); } +#endif +#ifdef __NR_semtimedop +safe_syscall4(int, semtimedop, int, semid, struct sembuf *, tsops, + unsigned, nsops, const struct timespec *, timeout) +#else static int safe_semtimedop(int semid, struct sembuf *tsops, unsigned nsops, const struct timespec *timeout) { |