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arm

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rsc 2005-11-03 00:13:33 +00:00
parent 6912efc49c
commit 9aa463c541
2 changed files with 35 additions and 34 deletions
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66
src/libthread/Linux-arm-asm.s
View file

@ -11,43 +11,43 @@ _tas:
.globl getmcontext .globl getmcontext
getmcontext: getmcontext:
/* r0 will be overwritten */ str r1, [r0,#4]
str r1, [r0,#4]! str r2, [r0,#8]
str r2, [r0,#4]! str r3, [r0,#12]
str r3, [r0,#4]! str r4, [r0,#16]
str r4, [r0,#4]! str r5, [r0,#20]
str r5, [r0,#4]! str r6, [r0,#24]
str r6, [r0,#4]! str r7, [r0,#28]
str r7, [r0,#4]! str r8, [r0,#32]
str r8, [r0,#4]! str r9, [r0,#36]
str r9, [r0,#4]! str r10, [r0,#40]
str r10, [r0,#4]! str r11, [r0,#44]
str r11, [r0,#4]! str r12, [r0,#48]
str r12, [r0,#4]! str r13, [r0,#52]
str r13, [r0,#4]! str r14, [r0,#56]
str r14, [r0,#4]! /* store 1 as r0-to-restore */
/* r15 is pc */ mov r1, #1
str r1, [r0]
/* return 0 */
mov r0, #0 mov r0, #0
mov pc, lr mov pc, lr
.globl setmcontext .globl setmcontext
setmcontext: setmcontext:
/* r0 will be overwritten */ ldr r1, [r0,#4]
ldr r1, [r0,#4]! ldr r2, [r0,#8]
ldr r2, [r0,#4]! ldr r3, [r0,#12]
ldr r3, [r0,#4]! ldr r4, [r0,#16]
ldr r4, [r0,#4]! ldr r5, [r0,#20]
ldr r5, [r0,#4]! ldr r6, [r0,#24]
ldr r6, [r0,#4]! ldr r7, [r0,#28]
ldr r7, [r0,#4]! ldr r8, [r0,#32]
ldr r8, [r0,#4]! ldr r9, [r0,#36]
ldr r9, [r0,#4]! ldr r10, [r0,#40]
ldr r10, [r0,#4]! ldr r11, [r0,#44]
ldr r11, [r0,#4]! ldr r12, [r0,#48]
ldr r12, [r0,#4]! ldr r13, [r0,#52]
ldr r13, [r0,#4]! ldr r14, [r0,#56]
ldr r14, [r0,#4]! ldr r0, [r0]
/* r15 is pc */
mov r0, #1
mov pc, lr mov pc, lr

3
src/libthread/Linux.c
View file

@ -449,7 +449,8 @@ makecontext(ucontext_t *uc, void (*fn)(void), int argc, ...)
sp = (int*)uc->uc_stack.ss_sp+uc->uc_stack.ss_size/4; sp = (int*)uc->uc_stack.ss_sp+uc->uc_stack.ss_size/4;
va_start(arg, argc); va_start(arg, argc);
for(i=0; i<4 && i<argc; i++) for(i=0; i<4 && i<argc; i++)
uc->uc_mcontext.gregs[0] = va_arg(arg, uint); uc->uc_mcontext.gregs[i] = va_arg(arg, uint);
va_end(arg);
uc->uc_mcontext.gregs[13] = (uint)sp; uc->uc_mcontext.gregs[13] = (uint)sp;
uc->uc_mcontext.gregs[14] = (uint)fn; uc->uc_mcontext.gregs[14] = (uint)fn;
} }