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| author | rofl0r <retnyg@gmx.net> | 2014-01-07 22:43:34 +0100 |
|---|---|---|
| committer | rofl0r <retnyg@gmx.net> | 2014-02-23 11:07:18 +0100 |
| commit | 323272db175204b951f119dae4bd99ef05e20f13 (patch) | |
| tree | 70329156d5189294b1e9e7f9c7c326924ad62e35 /src/thread/x32 | |
| parent | 0f169cbb79c39a5b15f7a27d9283cdeb6e122b8f (diff) | |
| download | musl-323272db175204b951f119dae4bd99ef05e20f13.tar.gz musl-323272db175204b951f119dae4bd99ef05e20f13.tar.xz musl-323272db175204b951f119dae4bd99ef05e20f13.zip | |
import vanilla x86_64 code as x32
Diffstat (limited to 'src/thread/x32')
| -rw-r--r-- | src/thread/x32/__set_thread_area.s | 10 | ||||
| -rw-r--r-- | src/thread/x32/__unmapself.s | 10 | ||||
| -rw-r--r-- | src/thread/x32/clone.s | 27 | ||||
| -rw-r--r-- | src/thread/x32/syscall_cp.s | 23 |
4 files changed, 70 insertions, 0 deletions
diff --git a/src/thread/x32/__set_thread_area.s b/src/thread/x32/__set_thread_area.s new file mode 100644 index 00000000..f3ff4f61 --- /dev/null +++ b/src/thread/x32/__set_thread_area.s @@ -0,0 +1,10 @@ +/* Copyright 2011-2012 Nicholas J. Kain, licensed under standard MIT license */ +.text +.global __set_thread_area +.type __set_thread_area,@function +__set_thread_area: + mov %rdi,%rsi /* shift for syscall */ + movl $0x1002,%edi /* SET_FS register */ + movl $158,%eax /* set fs segment to */ + syscall /* arch_prctl(SET_FS, arg)*/ + ret diff --git a/src/thread/x32/__unmapself.s b/src/thread/x32/__unmapself.s new file mode 100644 index 00000000..e2689e65 --- /dev/null +++ b/src/thread/x32/__unmapself.s @@ -0,0 +1,10 @@ +/* Copyright 2011-2012 Nicholas J. Kain, licensed under standard MIT license */ +.text +.global __unmapself +.type __unmapself,@function +__unmapself: + movl $11,%eax /* SYS_munmap */ + syscall /* munmap(arg2,arg3) */ + xor %rdi,%rdi /* exit() args: always return success */ + movl $60,%eax /* SYS_exit */ + syscall /* exit(0) */ diff --git a/src/thread/x32/clone.s b/src/thread/x32/clone.s new file mode 100644 index 00000000..ee59903a --- /dev/null +++ b/src/thread/x32/clone.s @@ -0,0 +1,27 @@ +.text +.global __clone +.type __clone,@function +__clone: + xor %eax,%eax + mov $56,%al + mov %rdi,%r11 + mov %rdx,%rdi + mov %r8,%rdx + mov %r9,%r8 + mov 8(%rsp),%r10 + mov %r11,%r9 + and $-16,%rsi + sub $8,%rsi + mov %rcx,(%rsi) + syscall + test %eax,%eax + jnz 1f + xor %ebp,%ebp + pop %rdi + call *%r9 + mov %eax,%edi + xor %eax,%eax + mov $60,%al + syscall + hlt +1: ret diff --git a/src/thread/x32/syscall_cp.s b/src/thread/x32/syscall_cp.s new file mode 100644 index 00000000..788c53cc --- /dev/null +++ b/src/thread/x32/syscall_cp.s @@ -0,0 +1,23 @@ +.text +.global __syscall_cp_asm +.type __syscall_cp_asm,@function +__syscall_cp_asm: + +.global __cp_begin +__cp_begin: + mov (%rdi),%eax + test %eax,%eax + jnz __cancel + mov %rdi,%r11 + mov %rsi,%rax + mov %rdx,%rdi + mov %rcx,%rsi + mov %r8,%rdx + mov %r9,%r10 + mov 8(%rsp),%r8 + mov 16(%rsp),%r9 + mov %r11,8(%rsp) + syscall +.global __cp_end +__cp_end: + ret |