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baremetal: aarch64 m5exit

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Ciro Santilli 六四事件 法轮功
2018-09-27 00:00:00 +00:00
parent 6bcbf2cb8e
commit f403f86934
2 changed files with 4 additions and 1 deletions
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3
baremetal/arch/aarch64/no_bootloader/m5exit.S Normal file
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@@ -0,0 +1,3 @@
.global mystart
mystart:
mov x0, #0; .inst 0XFF000110 | (0x21 << 16);

2
baremetal/lib/common.c
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@@ -58,7 +58,7 @@ int _write(int file, char *ptr, int len) {
return len; return len;
} }
/* Only 0 is supported for now, arm semihosting cannot handle it. */ /* Only 0 is supported for now, arm semihosting cannot handle other values. */
void _exit(int status) { void _exit(int status) {
#if defined(__arm__) #if defined(__arm__)
__asm__ __volatile__ ("mov r0, #0x18; ldr r1, =#0x20026; svc 0x00123456"); __asm__ __volatile__ ("mov r0, #0x18; ldr r1, =#0x20026; svc 0x00123456");