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Port a lot more code to AARCH64

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- Introduce epoll_pwait()
- Rewrite -ftrapv and ffs() libraries in C code
- Use more FreeBSD code in math function library
- Get significantly more tests passing on qemu-aarch64
- Fix many Musl long double functions that were broken on AARCH64
This commit is contained in:
Justine Tunney 2023-05-14 09:32:15 -07:00
parent 91791e9f38
commit 550b52abf6
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GPG key ID: BE714B4575D6E328
158 changed files with 6018 additions and 3499 deletions
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18
libc/linux/mmap.h
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@ -4,6 +4,7 @@
forceinline long LinuxMmap(void *addr, size_t size, long prot, long flags,
long fd, long off) {
#ifdef __x86_64__
long rc;
register long flags_ asm("r10") = flags;
register long fd_ asm("r8") = fd;
@ -14,6 +15,23 @@ forceinline long LinuxMmap(void *addr, size_t size, long prot, long flags,
"r"(off_)
: "rcx", "r11", "memory");
return rc;
#elif defined(__aarch64__)
register long r0 asm("x0") = (long)addr;
register long r1 asm("x1") = (long)size;
register long r2 asm("x2") = (long)prot;
register long r3 asm("x3") = (long)flags;
register long r4 asm("x4") = (long)fd;
register long r5 asm("x5") = (long)off;
register long res_x0 asm("x0");
asm volatile("mov\tx8,%1\n\t"
"svc\t0"
: "=r"(res_x0)
: "i"(222), "r"(r0), "r"(r1), "r"(r2), "r"(r3), "r"(r4), "r"(r5)
: "x8", "memory");
return res_x0;
#else
#error "unsupported architecture"
#endif
}
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */