From: Alex Bennée Date: Mon, 20 Mar 2017 14:36:47 +0000 (+0000) Subject: bsd-user: align use of mmap_lock to that of linux-user X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=95992b674c43339d0b313dd79fa8cc45ba22eab8;p=qemu.git bsd-user: align use of mmap_lock to that of linux-user The introduction of stricter mmap_lock checking in translate-all broke the BSD user build. The working mmap_lock functions were hidden behind CONFIG_USE_NPTL which is never defined. This patch brings them inline with linux-user. Despite the disapearence of the comment "We aren't threadsafe to start with..." this doesn't make bsd-user so. It will still need the rest of the fixes that have been done in linux-user ported over. Signed-off-by: Alex Bennée Reviewed-by: Paolo Bonzini --- diff --git a/bsd-user/mmap.c b/bsd-user/mmap.c index 1ad018a127..7f2018ede0 100644 --- a/bsd-user/mmap.c +++ b/bsd-user/mmap.c @@ -24,8 +24,7 @@ //#define DEBUG_MMAP -#if defined(CONFIG_USE_NPTL) -pthread_mutex_t mmap_mutex; +static pthread_mutex_t mmap_mutex = PTHREAD_MUTEX_INITIALIZER; static int __thread mmap_lock_count; void mmap_lock(void) @@ -62,16 +61,6 @@ void mmap_fork_end(int child) else pthread_mutex_unlock(&mmap_mutex); } -#else -/* We aren't threadsafe to start with, so no need to worry about locking. */ -void mmap_lock(void) -{ -} - -void mmap_unlock(void) -{ -} -#endif /* NOTE: all the constants are the HOST ones, but addresses are target. */ int target_mprotect(abi_ulong start, abi_ulong len, int prot) diff --git a/bsd-user/qemu.h b/bsd-user/qemu.h index 2b2b9184e0..b550cee0cb 100644 --- a/bsd-user/qemu.h +++ b/bsd-user/qemu.h @@ -209,10 +209,8 @@ abi_long target_mremap(abi_ulong old_addr, abi_ulong old_size, abi_ulong new_addr); int target_msync(abi_ulong start, abi_ulong len, int flags); extern unsigned long last_brk; -#if defined(CONFIG_USE_NPTL) void mmap_fork_start(void); void mmap_fork_end(int child); -#endif /* main.c */ extern unsigned long x86_stack_size;