From: Stacey Son <[email protected]> Wire up semget(2) and semop(2) syscalls to get System V semaphore implementation, as well the undocumented __semctl used to implement the bits of the interface in libc.
Signed-off-by: Stacey Son <[email protected]> Signed-off-by: Warner Losh <[email protected]> --- bsd-user/freebsd/os-syscall.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/bsd-user/freebsd/os-syscall.c b/bsd-user/freebsd/os-syscall.c index ca2f6fdb66..6e38007bdd 100644 --- a/bsd-user/freebsd/os-syscall.c +++ b/bsd-user/freebsd/os-syscall.c @@ -37,6 +37,7 @@ #include "bsd-file.h" #include "bsd-mem.h" #include "bsd-proc.h" +#include "bsd-misc.h" /* BSD dependent syscall shims */ #include "os-stat.h" @@ -879,6 +880,28 @@ static abi_long freebsd_syscall(void *cpu_env, int num, abi_long arg1, ret = do_bsd_shmdt(arg1); break; + /* + * System V Semaphores + */ + case TARGET_FREEBSD_NR_semget: /* semget(2) */ + ret = do_bsd_semget(arg1, arg2, arg3); + break; + + case TARGET_FREEBSD_NR_semop: /* semop(2) */ + ret = do_bsd_semop(arg1, arg2, arg3); + break; + + case TARGET_FREEBSD_NR___semctl: { /* __semctl() undocumented */ + /* + * The semun argument to semctl is passed by value, so dereference the + * ptr argument. + */ + abi_ulong atptr; + get_user_ual(atptr, (abi_ulong)arg4); + ret = do_bsd___semctl(arg1, arg2, arg3, + (union target_semun)(abi_ulong) atptr); + break; + } case TARGET_FREEBSD_NR_freebsd11_vadvise: ret = do_bsd_vadvise(); break; -- 2.52.0
