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fix std threads for linux

master
Andrew Kelley 2018-04-29 02:56:59 -04:00
parent b21bcbd775
commit c76b0a845f
1 changed files with 8 additions and 9 deletions
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17
std/os/index.zig
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@ -2499,13 +2499,13 @@ pub fn spawnThread(context: var, comptime startFn: var) SpawnThreadError!&Thread
const MAP_GROWSDOWN = if (builtin.os == builtin.Os.linux) linux.MAP_GROWSDOWN else 0;
const stack_len = default_stack_size;
const stack_addr = posix.mmap(null, stack_len, posix.PROT_READ|posix.PROT_WRITE,
const mmap_len = default_stack_size;
const stack_addr = posix.mmap(null, mmap_len, posix.PROT_READ|posix.PROT_WRITE,
posix.MAP_PRIVATE|posix.MAP_ANONYMOUS|MAP_GROWSDOWN, -1, 0);
if (stack_addr == posix.MAP_FAILED) return error.OutOfMemory;
errdefer assert(posix.munmap(stack_addr, stack_len) == 0);
errdefer assert(posix.munmap(stack_addr, mmap_len) == 0);
var stack_end: usize = stack_addr + stack_len;
var stack_end: usize = stack_addr + mmap_len;
var arg: usize = undefined;
if (@sizeOf(Context) != 0) {
stack_end -= @sizeOf(Context);
@ -2521,6 +2521,8 @@ pub fn spawnThread(context: var, comptime startFn: var) SpawnThreadError!&Thread
assert(stack_end >= stack_addr);
const thread_ptr = @alignCast(@alignOf(Thread), @intToPtr(&Thread, stack_end));
thread_ptr.data.stack_addr = stack_addr;
thread_ptr.data.stack_len = mmap_len;
if (builtin.os == builtin.Os.windows) {
// use windows API directly
@ -2533,10 +2535,7 @@ pub fn spawnThread(context: var, comptime startFn: var) SpawnThreadError!&Thread
// align to page
stack_end -= stack_end % os.page_size;
assert(c.pthread_attr_setstack(&attr, @intToPtr(&c_void, stack_addr), stack_len) == 0);
thread_ptr.data.stack_addr = stack_addr;
thread_ptr.data.stack_len = stack_len;
assert(c.pthread_attr_setstack(&attr, @intToPtr(&c_void, stack_addr), stack_end - stack_addr) == 0);
const err = c.pthread_create(&thread_ptr.data.handle, &attr, MainFuncs.posixThreadMain, @intToPtr(&c_void, arg));
switch (err) {
@ -2552,7 +2551,7 @@ pub fn spawnThread(context: var, comptime startFn: var) SpawnThreadError!&Thread
| posix.CLONE_THREAD | posix.CLONE_SYSVSEM // | posix.CLONE_SETTLS
| posix.CLONE_PARENT_SETTID | posix.CLONE_CHILD_CLEARTID | posix.CLONE_DETACHED;
const newtls: usize = 0;
const rc = posix.clone(MainFuncs.linuxThreadMain, stack_end, flags, arg, &thread_ptr.pid, newtls, &thread_ptr.pid);
const rc = posix.clone(MainFuncs.linuxThreadMain, stack_end, flags, arg, &thread_ptr.data.pid, newtls, &thread_ptr.data.pid);
const err = posix.getErrno(rc);
switch (err) {
0 => return thread_ptr,