libthread: rm Darwin pre-11.0.0 support
Darwin 11.0.0 was Mac OS X 10.7.0 aka Lion. The previous version was Snow Leopard, which has been unsupported by Apple since February 2014.
This commit is contained in:
Russ Cox
parent
8dcb18f71b
commit
52397aaf2b
5 changed files with 0 additions and 192 deletions
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@ -1,52 +0,0 @@
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.globl _tas
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_tas:
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movl $0xCAFEBABE, %eax
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movl 4(%esp), %ecx
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xchgl %eax, 0(%ecx)
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ret
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.globl _getmcontext
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_getmcontext:
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movl 4(%esp), %eax
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movl %fs, 8(%eax)
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movl %es, 12(%eax)
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movl %ds, 16(%eax)
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movl %ss, 76(%eax)
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movl %edi, 20(%eax)
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movl %esi, 24(%eax)
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movl %ebp, 28(%eax)
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movl %ebx, 36(%eax)
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movl %edx, 40(%eax)
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movl %ecx, 44(%eax)
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movl $1, 48(%eax) /* %eax */
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movl (%esp), %ecx /* %eip */
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movl %ecx, 60(%eax)
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leal 4(%esp), %ecx /* %esp */
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movl %ecx, 72(%eax)
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movl 44(%eax), %ecx /* restore %ecx */
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movl $0, %eax
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ret
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.globl _setmcontext
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_setmcontext:
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movl 4(%esp), %eax
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movl 8(%eax), %fs
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movl 12(%eax), %es
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movl 16(%eax), %ds
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movl 76(%eax), %ss
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movl 20(%eax), %edi
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movl 24(%eax), %esi
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movl 28(%eax), %ebp
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movl 36(%eax), %ebx
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movl 40(%eax), %edx
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movl 44(%eax), %ecx
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movl 72(%eax), %esp
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pushl 60(%eax) /* new %eip */
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movl 48(%eax), %eax
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ret
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@ -1,30 +0,0 @@
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#include "threadimpl.h"
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void
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makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...)
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{
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int *sp;
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sp = (int*)ucp->uc_stack.ss_sp+ucp->uc_stack.ss_size/4;
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sp -= argc;
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/*
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* Stack pointer at call instruction (before return address
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* gets pushed) must be 16-byte aligned.
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*/
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if((uintptr)sp%4)
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abort();
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while((uintptr)sp%16)
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sp--;
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memmove(sp, &argc+1, argc*sizeof(int));
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*--sp = 0; /* return address */
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ucp->uc_mcontext.mc_eip = (long)func;
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ucp->uc_mcontext.mc_esp = (int)sp;
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}
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int
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swapcontext(ucontext_t *oucp, ucontext_t *ucp)
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{
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if(getcontext(oucp) == 0)
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setcontext(ucp);
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return 0;
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}
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@ -1,83 +0,0 @@
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/* get FPR and VR use flags with sc 0x7FF3 */
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/* get vsave with mfspr reg, 256 */
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.text
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.align 2
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.globl __getmcontext
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__getmcontext: /* xxx: instruction scheduling */
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mflr r0
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mfcr r5
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mfctr r6
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mfxer r7
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stw r0, 0*4(r3)
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stw r5, 1*4(r3)
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stw r6, 2*4(r3)
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stw r7, 3*4(r3)
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stw r1, 4*4(r3)
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stw r2, 5*4(r3)
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li r5, 1 /* return value for setmcontext */
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stw r5, 6*4(r3)
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stw r13, (0+7)*4(r3) /* callee-save GPRs */
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stw r14, (1+7)*4(r3) /* xxx: block move */
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stw r15, (2+7)*4(r3)
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stw r16, (3+7)*4(r3)
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stw r17, (4+7)*4(r3)
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stw r18, (5+7)*4(r3)
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stw r19, (6+7)*4(r3)
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stw r20, (7+7)*4(r3)
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stw r21, (8+7)*4(r3)
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stw r22, (9+7)*4(r3)
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stw r23, (10+7)*4(r3)
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stw r24, (11+7)*4(r3)
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stw r25, (12+7)*4(r3)
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stw r26, (13+7)*4(r3)
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stw r27, (14+7)*4(r3)
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stw r28, (15+7)*4(r3)
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stw r29, (16+7)*4(r3)
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stw r30, (17+7)*4(r3)
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stw r31, (18+7)*4(r3)
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li r3, 0 /* return */
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blr
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.globl __setmcontext
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__setmcontext:
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lwz r13, (0+7)*4(r3) /* callee-save GPRs */
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lwz r14, (1+7)*4(r3) /* xxx: block move */
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lwz r15, (2+7)*4(r3)
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lwz r16, (3+7)*4(r3)
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lwz r17, (4+7)*4(r3)
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lwz r18, (5+7)*4(r3)
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lwz r19, (6+7)*4(r3)
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lwz r20, (7+7)*4(r3)
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lwz r21, (8+7)*4(r3)
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lwz r22, (9+7)*4(r3)
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lwz r23, (10+7)*4(r3)
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lwz r24, (11+7)*4(r3)
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lwz r25, (12+7)*4(r3)
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lwz r26, (13+7)*4(r3)
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lwz r27, (14+7)*4(r3)
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lwz r28, (15+7)*4(r3)
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lwz r29, (16+7)*4(r3)
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lwz r30, (17+7)*4(r3)
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lwz r31, (18+7)*4(r3)
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lwz r1, 4*4(r3)
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lwz r2, 5*4(r3)
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lwz r0, 0*4(r3)
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mtlr r0
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lwz r0, 1*4(r3)
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mtcr r0 /* mtcrf 0xFF, r0 */
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lwz r0, 2*4(r3)
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mtctr r0
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lwz r0, 3*4(r3)
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mtxer r0
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lwz r3, 6*4(r3)
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blr
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@ -1,24 +0,0 @@
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#include "threadimpl.h"
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void
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makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...)
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{
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ulong *sp, *tos;
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va_list arg;
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tos = (ulong*)ucp->uc_stack.ss_sp+ucp->uc_stack.ss_size/sizeof(ulong);
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sp = tos - 16;
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ucp->mc.pc = (long)func;
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ucp->mc.sp = (long)sp;
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va_start(arg, argc);
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ucp->mc.r3 = va_arg(arg, long);
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va_end(arg);
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}
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int
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swapcontext(ucontext_t *oucp, ucontext_t *ucp)
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{
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if(getcontext(oucp) == 0)
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setcontext(ucp);
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return 0;
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}
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@ -7,9 +7,6 @@ case "$tag" in
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*-NetBSD-*)
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echo ${SYSNAME}-${OBJTYPE}-asm.o $SYSNAME.o pthread.o stkmalloc.o
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;;
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*-Darwin-10.[5-6].* | *-Darwin-[89].*)
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echo ${SYSNAME}-${OBJTYPE}-asm.o $SYSNAME-${OBJTYPE}.o pthread.o stkmalloc.o
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;;
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*-OpenBSD-*)
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echo ${SYSNAME}-${OBJTYPE}-asm.o ${SYSNAME}-${OBJTYPE}.o pthread.o stkmmap.o
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;;
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