From c78d65e8a7d87badf46eda3a0b41330f5d239132 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Mon, 14 Sep 2015 13:53:03 +0200 Subject: linux-user: Use g_new() & friends where that makes obvious sense g_new(T, n) is neater than g_malloc(sizeof(T) * n). It's also safer, for two reasons. One, it catches multiplication overflowing size_t. Two, it returns T * rather than void *, which lets the compiler catch more type errors. This commit only touches allocations with size arguments of the form sizeof(T). Same Coccinelle semantic patch as in commit b45c03f. Signed-off-by: Markus Armbruster Reviewed-by: Eric Blake Reviewed-by: Stefan Weil Signed-off-by: Michael Tokarev --- linux-user/syscall.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'linux-user/syscall.c') diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 98b5766d4a..b8ce208d7d 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -4566,7 +4566,7 @@ static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp, new_thread_info info; pthread_attr_t attr; - ts = g_malloc0(sizeof(TaskState)); + ts = g_new0(TaskState, 1); init_task_state(ts); /* we create a new CPU instance. */ new_env = cpu_copy(env); -- cgit 1.4.1 From d1c002b6ae2dc81d97bbe23fe65e1960abdba9a4 Mon Sep 17 00:00:00 2001 From: Stefan Weil Date: Sun, 8 Feb 2015 15:40:58 +0100 Subject: linux-user: Remove type casts to union type Casting to a union type is a gcc (and clang) extension. Other compilers might not support it. This is not a problem today, but the type casts can be removed easily. Smatch now no longer complains like before: linux-user/syscall.c:3190:18: warning: cast to non-scalar linux-user/syscall.c:7348:44: warning: cast to non-scalar Cc: Riku Voipio Signed-off-by: Stefan Weil Signed-off-by: Michael Tokarev --- linux-user/syscall.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'linux-user/syscall.c') diff --git a/linux-user/syscall.c b/linux-user/syscall.c index b8ce208d7d..8bfb24f05b 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -2728,8 +2728,9 @@ static inline abi_long host_to_target_semarray(int semid, abi_ulong target_addr, } static inline abi_long do_semctl(int semid, int semnum, int cmd, - union target_semun target_su) + abi_ulong target_arg) { + union target_semun target_su = { .buf = target_arg }; union semun arg; struct semid_ds dsarg; unsigned short *array = NULL; @@ -3251,8 +3252,7 @@ static abi_long do_ipc(unsigned int call, abi_long first, * ptr argument. */ abi_ulong atptr; get_user_ual(atptr, ptr); - ret = do_semctl(first, second, third, - (union target_semun) atptr); + ret = do_semctl(first, second, third, atptr); break; } @@ -7550,7 +7550,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, #endif #ifdef TARGET_NR_semctl case TARGET_NR_semctl: - ret = do_semctl(arg1, arg2, arg3, (union target_semun)(abi_ulong)arg4); + ret = do_semctl(arg1, arg2, arg3, arg4); break; #endif #ifdef TARGET_NR_msgctl -- cgit 1.4.1