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After going through the MODE=dbg and MODE=zero build modes, a bunch of
little issues were identified, which have been addressed. Fixing those
issues created even more troubles for the project, because it improved
our ability to detect latent problems which are getting fixed so fast.
This commit is contained in:
Justine Tunney 2023-07-03 17:35:11 -07:00
parent 73c0faa1b5
commit 97b7116953
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GPG key ID: BE714B4575D6E328
39 changed files with 557 additions and 754 deletions
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43
libc/calls/getcontext.inc
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@ -63,7 +63,10 @@
#elif defined(__aarch64__)
#define REGS(i) 184+i*8
stp xzr,x1,[x0,REGS(0)] // x0 = 0
// x14 and x15 are clobbered
// all other registers are preserved
stp xzr,x1,[x0,REGS(0)] // context.x0 = 0
stp x2,x3,[x0,REGS(2)]
stp x4,x5,[x0,REGS(4)]
stp x6,x7,[x0,REGS(6)]
@ -84,6 +87,44 @@
str xzr,[x0,448] // pstate = 0
str xzr,[x0,456] // no vectors yet
/*void getfpsimd(ucontext_t *uc) {
struct fpsimd_context *fp;
fp = (struct fpsimd_context *)uc->uc_mcontext.__reserved;
fp[0].head.magic = FPSIMD_MAGIC;
fp[0].head.size = sizeof(*fp);
fp[1].head.magic = 0;
fp[1].head.size = 0;
asm("mrs\t%0,fpsr" : "=r"(fp->fpsr));
asm("mrs\t%0,fpcr" : "=r"(fp->fpcr));
asm("stp\tq0,q1,%0" : "=m"(fp->vregs[0]));
asm("stp\tq2,q3,%0" : "=m"(fp->vregs[2]));
asm("stp\tq4,q5,%0" : "=m"(fp->vregs[4]));
asm("stp\tq6,q7,%0" : "=m"(fp->vregs[6]));
asm("stp\tq8,q9,%0" : "=m"(fp->vregs[8]));
asm("stp\tq10,q11,%0" : "=m"(fp->vregs[10]));
asm("stp\tq12,q13,%0" : "=m"(fp->vregs[12]));
asm("stp\tq14,q15,%0" : "=m"(fp->vregs[14]));
}*/
add x15,x0,464
mov x14,0x8001
movk x14,0x4650,lsl 16
str xzr,[x0,992]
movk x14,0x210,lsl 32
str x14,[x0,464]
mrs x14,fpsr
str w14,[x15,8]
mrs x14,fpcr
str w14,[x15,12]
stp q0,q1,[x15,16]
stp q2,q3,[x15,48]
stp q4,q5,[x15,80]
stp q6,q7,[x15,112]
stp q8,q9,[x15,144]
stp q10,q11,[x15,176]
stp q12,q13,[x15,208]
stp q14,q15,[x15,240]
#else
#error "unsupported architecture"
#endif