ref: ed7bb0cde9b714159d8cdb56d2d6aa832674622c
parent: 2550b676852c8bbea1c4f22984991000fe6fc855
author: Ori Bernstein <ori@eigenstate.org>
date: Mon Dec 29 07:26:57 EST 2014
Add __osx_lseek
I wonder if this is right..
--- a/libstd/syscall+osx-x64.s
+++ b/libstd/syscall+osx-x64.s
@@ -1,14 +1,14 @@
.globl _sys$syscall
_sys$syscall:
- pushq %rbp
- pushq %rdi
- pushq %rsi
- pushq %rdx
- pushq %r10
+ pushq %rbp
+ pushq %rdi
+ pushq %rsi
+ pushq %rdx
+ pushq %r10
pushq %r8
pushq %r9
- pushq %rcx
- pushq %r11
+ pushq %rcx
+ pushq %r11
/*
hack: We load 6 args regardless of
how many we actually have. This may
@@ -51,14 +51,14 @@
.globl _sys$__osx_fork
_sys$__osx_fork:
pushq %rbp
- pushq %rdi
- pushq %rsi
- pushq %rdx
- pushq %r10
+ pushq %rdi
+ pushq %rsi
+ pushq %rdx
+ pushq %r10
pushq %r8
pushq %r9
- pushq %rcx
- pushq %r11
+ pushq %rcx
+ pushq %r11
movq $0x2000002,%rax
syscall
@@ -72,14 +72,14 @@
xorq %rax,%rax
.isparent:
- popq %r11
- popq %rcx
+ popq %r11
+ popq %rcx
popq %r9
popq %r8
- popq %r10
- popq %rdx
- popq %rsi
- popq %rdi
+ popq %r10
+ popq %rdx
+ popq %rsi
+ popq %rdi
popq %rbp
ret
@@ -91,14 +91,14 @@
.globl _sys$__osx_pipe
_sys$__osx_pipe:
pushq %rbp
- pushq %rdi
- pushq %rsi
- pushq %rdx
- pushq %r10
+ pushq %rdi
+ pushq %rsi
+ pushq %rdx
+ pushq %r10
pushq %r8
pushq %r9
- pushq %rcx
- pushq %r11
+ pushq %rcx
+ pushq %r11
movq $0x200002a,%rax
syscall
@@ -112,28 +112,63 @@
movl %edx,4(%rdi)
xorq %rax,%rax
- popq %r11
- popq %rcx
+ popq %r11
+ popq %rcx
popq %r9
popq %r8
- popq %r10
- popq %rdx
- popq %rsi
- popq %rdi
+ popq %r10
+ popq %rdx
+ popq %rsi
+ popq %rdi
popq %rbp
ret
+.globl _sys$__osx_lseek
+_sys$__osx_lseek:
+ pushq %rbp
+ pushq %rdi
+ pushq %rsi
+ pushq %rdx
+ pushq %r10
+ pushq %r8
+ pushq %r9
+ pushq %rcx
+ pushq %r11
+
+ movq $0x20000C7,%rax
+ syscall
+
+ jae .lseeksuccess
+ negq %rax
+
+.lseeksuccess:
+ movq 80(%rsp),%rdi
+ shlq $32,%rdx
+ orq %rdx,%rax
+
+ popq %r11
+ popq %rcx
+ popq %r9
+ popq %r8
+ popq %r10
+ popq %rdx
+ popq %rsi
+ popq %rdi
+ popq %rbp
+ ret
+
+
.globl _sys$__osx_gettimeofday
_sys$__osx_gettimeofday:
pushq %rbp
- pushq %rdi
- pushq %rsi
- pushq %rdx
- pushq %r10
+ pushq %rdi
+ pushq %rsi
+ pushq %rdx
+ pushq %r10
pushq %r8
pushq %r9
- pushq %rcx
- pushq %r11
+ pushq %rcx
+ pushq %r11
movq $0x2000074,%rax
syscall
@@ -147,14 +182,14 @@
movl %edx,8(%rdi)
xorq %rax,%rax
- popq %r11
- popq %rcx
+ popq %r11
+ popq %rcx
popq %r9
popq %r8
- popq %r10
- popq %rdx
- popq %rsi
- popq %rdi
+ popq %r10
+ popq %rdx
+ popq %rsi
+ popq %rdi
popq %rbp
ret