diff options
Diffstat (limited to 'src/libthread/OpenBSD-386-asm.s')
| -rw-r--r-- | src/libthread/OpenBSD-386-asm.s | 53 |
1 files changed, 52 insertions, 1 deletions
diff --git a/src/libthread/OpenBSD-386-asm.s b/src/libthread/OpenBSD-386-asm.s index dad1b536..42169853 100644 --- a/src/libthread/OpenBSD-386-asm.s +++ b/src/libthread/OpenBSD-386-asm.s @@ -1 +1,52 @@ -#include "FreeBSD-386-asm.s" +.globl _tas +_tas: + movl $0xCAFEBABE, %eax + movl 4(%esp), %ecx + xchgl %eax, 0(%ecx) + ret + +.globl getmcontext +getmcontext: + movl 4(%esp), %eax + + movl %fs, 8(%eax) + movl %es, 12(%eax) + movl %ds, 16(%eax) + movl %ss, 76(%eax) + movl %edi, 20(%eax) + movl %esi, 24(%eax) + movl %ebp, 28(%eax) + movl %ebx, 36(%eax) + movl %edx, 40(%eax) + movl %ecx, 44(%eax) + + movl $1, 48(%eax) /* %eax */ + movl (%esp), %ecx /* %eip */ + movl %ecx, 60(%eax) + leal 4(%esp), %ecx /* %esp */ + movl %ecx, 72(%eax) + + movl 44(%eax), %ecx /* restore %ecx */ + movl $0, %eax + ret + +.globl setmcontext +setmcontext: + movl 4(%esp), %eax + + movl 8(%eax), %fs + movl 12(%eax), %es + movl 16(%eax), %ds + movl 76(%eax), %ss + movl 20(%eax), %edi + movl 24(%eax), %esi + movl 28(%eax), %ebp + movl 36(%eax), %ebx + movl 40(%eax), %edx + movl 44(%eax), %ecx + + movl 72(%eax), %esp + pushl 60(%eax) /* new %eip */ + movl 48(%eax), %eax + ret + |