ref: 73417304a449cbdb641d05162b8d80a0380f35ed
parent: f46bd78c6930a9eef524910d22a664d20366ed8d
author: Ori Bernstein <[email protected]>
date: Wed Aug 27 07:16:21 EDT 2014
Fix gettimeofday() on OSX.
It's another wonky syscall.
--- a/libstd/sys-osx.myr
+++ b/libstd/sys-osx.myr
@@ -622,8 +622,20 @@
-> x castto(uint64)
}
-extern const __osx_fork : (-> pid)
+/* OSX has a number of funky syscalls */
+extern const __osx_fork : (-> pid)
extern const __osx_pipe : (fd : fd# -> int64)
+extern const __osx_getpid : (-> pid)
+extern const __osx_lseek : (fd:fd, off:uint64, whence:int64 -> int64)
+extern const __osx_gettimeofday : (tv : timeval#, tz : timezone# -> int)
+/*
+extern const __osx_ptrace
+extern const __osx_signalstack
+extern const __osx_sigreturn
+extern const __osx_thread_selfid
+extern const __osx_vfork
+*/
+
extern const cstring : (str : byte[:] -> byte#)
extern const alloca : (sz : size -> byte#)
extern const __cenvp : byte##
@@ -737,7 +749,7 @@
-> syscall(Sysmmap, a(addr), a(len), a(prot), a(flags), a(fd), a(off)) castto(byte#)}
/* time */
-const gettimeofday = {tv, tz; -> syscall(Sysgettimeofday, a(tv), a(tz)) castto(int)}+const gettimeofday = {tv, tz; -> __osx_gettimeofday(tv, tz) castto(int)} const settimeofday = {tv, tz; -> syscall(Syssettimeofday, a(tv), a(tz)) castto(int)}/* faked with gettimeofday */
--- a/libstd/syscall-osx.s
+++ b/libstd/syscall-osx.s
@@ -25,10 +25,10 @@
movq 128(%rsp),%r9
syscall
- jae success
+ jae .success
negq %rax
-success:
+.success:
popq %r11
popq %rcx
popq %r9
@@ -63,14 +63,14 @@
movq $0x2000002,%rax
syscall
- jae forksuccess
+ jae .forksuccess
negq %rax
-forksuccess:
+.forksuccess:
testl %edx,%edx
- jz isparent
+ jz .isparent
xorq %rax,%rax
-isparent:
+.isparent:
popq %r11
popq %rcx
@@ -103,13 +103,48 @@
movq $0x200002a,%rax
syscall
- jae pipesuccess
+ jae .pipesuccess
negq %rax
-pipesuccess:
- movq 88 (%rsp),%rdi
+.pipesuccess:
+ movq 80(%rsp),%rdi
movl %eax,(%rdi)
movl %edx,4(%rdi)
+ xorq %rax,%rax
+
+ popq %r11
+ popq %rcx
+ popq %r9
+ popq %r8
+ popq %r10
+ popq %rdx
+ popq %rsi
+ popq %rdi
+ popq %rbp
+ ret
+
+.globl _std$__osx_gettimeofday
+_std$__osx_gettimeofday:
+ pushq %rbp
+ pushq %rdi
+ pushq %rsi
+ pushq %rdx
+ pushq %r10
+ pushq %r8
+ pushq %r9
+ pushq %rcx
+ pushq %r11
+
+ movq $0x2000074,%rax
+ syscall
+
+ jae .gettimeofdaysuccess
+ negq %rax
+
+.gettimeofdaysuccess:
+ movq 80(%rsp),%rdi
+ movq %rax, (%rdi)
+ movl %edx,8(%rdi)
xorq %rax,%rax
popq %r11