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Make progress towards aarch64 build

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Justine Tunney 2023-05-01 19:43:59 -07:00
parent 08ff26c817
commit ca2860947f
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GPG key ID: BE714B4575D6E328
15428 changed files with 25694 additions and 23138 deletions
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13
libc/intrin/kprintf.greg.c
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@ -165,6 +165,7 @@ privileged bool kisdangerous(const void *p) {
}
privileged static void klog(const char *b, size_t n) {
#ifdef __x86_64__
int e;
bool cf;
size_t i;
@ -196,6 +197,17 @@ privileged static void klog(const char *b, size_t n) {
: "0"(__NR_write), "1"(2), "2"(b), "3"(n)
: "rcx", "r8", "r9", "r10", "r11", "memory", "cc");
}
#else
register long r0 asm("x0") = (long)2;
register long r1 asm("x1") = (long)b;
register long r2 asm("x2") = (long)n;
register long res_x0 asm("x0");
asm volatile("mov\tx8,%1\n"
"svc\t0"
: "=r"(res_x0)
: "i"(64), "r"(r0), "r"(r1), "r"(r2)
: "x8", "memory");
#endif
}
privileged static size_t kformat(char *b, size_t n, const char *fmt,
@ -798,7 +810,6 @@ privileged size_t kvsnprintf(char *b, size_t n, const char *fmt, va_list v) {
privileged void kvprintf(const char *fmt, va_list v) {
size_t n;
char b[4000];
if (!v) return;
n = kformat(b, sizeof(b), fmt, v);
klog(b, MIN(n, sizeof(b) - 1));
}