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https://github.com/jart/cosmopolitan.git
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Restore missing cosmopolitan documentation on website
This commit is contained in:
Justine Tunney
parent
58352df0a4
commit
d9d5f45e2d
36 changed files with 715 additions and 228 deletions
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@ -23,6 +23,7 @@
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typedef uint64_t xmm_t __attribute__((__vector_size__(16), __aligned__(1)));
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#if !defined(__chibicc__)
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static int bcmp_sse(const char *p, const char *q, size_t n) {
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xmm_t a;
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while (n > 32) {
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@ -36,8 +37,9 @@ static int bcmp_sse(const char *p, const char *q, size_t n) {
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*(const xmm_t *)(p + n - 16) ^ *(const xmm_t *)(q + n - 16);
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return !!(a[0] | a[1]);
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}
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#endif
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#ifdef __x86_64__
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#if defined(__x86_64__) && !defined(__chibicc__)
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_Microarchitecture("avx") static int bcmp_avx(const char *p, const char *q,
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size_t n) {
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xmm_t a, b, c, d;
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@ -123,12 +125,14 @@ int bcmp(const void *a, const void *b, size_t n) {
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__builtin_memcpy(&j, q + n - 4, 4);
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return !!(i ^ j);
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}
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#ifndef __chibicc__
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#ifdef __x86_64__
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} else if (LIKELY(X86_HAVE(AVX))) {
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return bcmp_avx(p, q, n);
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#endif
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} else {
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return bcmp_sse(p, q, n);
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#endif
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}
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}
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while (n--) {
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@ -34,7 +34,7 @@ void djbsort(int32_t *a, size_t n) {
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__asan_verify(a, m);
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}
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if (n > 1) {
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#ifdef __x86_64__
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#if defined(__x86_64__) && !defined(__chibicc__)
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if (X86_HAVE(AVX2)) {
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djbsort_avx2(a, n);
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} else {
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@ -60,7 +60,7 @@ dontasan bool _isutf8(const void *data, size_t size) {
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p = data;
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e = p + size;
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while (p < e) {
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#ifdef __x86_64__
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#if defined(__x86_64__) && !defined(__chibicc__)
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if (!((intptr_t)p & 15)) {
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for (;;) {
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if ((m = __builtin_ia32_pmovmskb128(*(xmm_t *)p >= (xmm_t){0}) ^
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@ -34,7 +34,7 @@ typedef char xmm_t __attribute__((__vector_size__(16), __aligned__(16)));
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*/
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dontasan void *memmem(const void *haystack, size_t haystacklen,
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const void *needle, size_t needlelen) {
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#ifdef __x86_64__
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#if defined(__x86_64__) && !defined(__chibicc__)
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char c;
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xmm_t n, *v;
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unsigned i, k, m;
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@ -34,7 +34,7 @@ static inline const char16_t *memrchr16_pure(const char16_t *s, char16_t c,
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return 0;
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}
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#ifdef __x86_64__
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#if defined(__x86_64__) && !defined(__chibicc__)
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dontasan static inline const char16_t *memrchr16_sse(const char16_t *s,
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char16_t c, size_t n) {
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size_t i;
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@ -67,7 +67,7 @@ dontasan static inline const char16_t *memrchr16_sse(const char16_t *s,
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* @asyncsignalsafe
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*/
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void *memrchr16(const void *s, int c, size_t n) {
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#ifdef __x86_64__
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#if defined(__x86_64__) && !defined(__chibicc__)
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const void *r;
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if (!IsTiny() && X86_HAVE(SSE)) {
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if (IsAsan()) __asan_verify(s, n * 2);
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@ -31,7 +31,7 @@ static inline const unsigned char *rawmemchr_pure(const unsigned char *s,
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}
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}
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#ifdef __x86_64__
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#if defined(__x86_64__) && !defined(__chibicc__)
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typedef char xmm_t __attribute__((__vector_size__(16), __aligned__(16)));
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dontasan static inline const char *rawmemchr_sse(const char *s,
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unsigned char c) {
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@ -68,7 +68,7 @@ static inline dontasan uint64_t UncheckedAlignedRead64(unsigned char *p) {
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* @return is pointer to first instance of c
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*/
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void *rawmemchr(const void *s, int c) {
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#ifdef __x86_64__
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#if defined(__x86_64__) && !defined(__chibicc__)
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const void *r;
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if (X86_HAVE(SSE)) {
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if (IsAsan()) __asan_verify(s, 1);
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@ -36,7 +36,7 @@ typedef char xmm_t __attribute__((__vector_size__(16), __aligned__(16)));
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* @see strstr()
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*/
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dontasan char *strcasestr(const char *haystack, const char *needle) {
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#ifdef __x86_64__
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#if defined(__x86_64__) && !defined(__chibicc__)
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char c;
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xmm_t *p;
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size_t i;
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@ -30,7 +30,7 @@ typedef char16_t xmm_t __attribute__((__vector_size__(16), __aligned__(16)));
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* @asyncsignalsafe
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*/
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dontasan size_t strlen16(const char16_t *s) {
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#ifdef __x86_64__
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#if defined(__x86_64__) && !defined(__chibicc__)
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size_t n;
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xmm_t z = {0};
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unsigned m, k = (uintptr_t)s & 15;
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@ -36,7 +36,7 @@ typedef char xmm_t __attribute__((__vector_size__(16), __aligned__(16)));
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* @see memmem()
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*/
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dontasan char *strstr(const char *haystack, const char *needle) {
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#ifdef __x86_64__
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#if defined(__x86_64__) && !defined(__chibicc__)
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xmm_t *p;
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size_t i;
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unsigned k, m;
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@ -22,8 +22,8 @@
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#include "libc/nexgen32e/x86feature.h"
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#include "libc/str/str.h"
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#ifndef __chibicc__
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typedef uint64_t xmm_t __attribute__((__vector_size__(16), __aligned__(1)));
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dontasan static unsigned timingsafe_bcmp_sse(const char *p, const char *q,
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size_t n) {
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uint64_t w;
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@ -39,8 +39,9 @@ dontasan static unsigned timingsafe_bcmp_sse(const char *p, const char *q,
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w = a[0] | a[1];
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return w | w >> 32;
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}
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#endif
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#ifdef __x86_64__
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#if defined(__x86_64__) && !defined(__chibicc__)
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dontasan static _Microarchitecture("avx") int timingsafe_bcmp_avx(const char *p,
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const char *q,
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size_t n) {
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@ -141,12 +142,14 @@ int timingsafe_bcmp(const void *a, const void *b, size_t n) {
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__asan_verify(a, n);
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__asan_verify(b, n);
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}
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#ifndef __chibicc__
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#ifdef __x86_64__
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if (X86_HAVE(AVX)) {
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return timingsafe_bcmp_avx(p, q, n);
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}
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#endif
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return timingsafe_bcmp_sse(p, q, n);
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#endif
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}
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} else if (n >= 4) {
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__builtin_memcpy(&u0, p, 4);
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@ -30,7 +30,7 @@ typedef wchar_t xmm_t __attribute__((__vector_size__(16), __aligned__(16)));
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* @asyncsignalsafe
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*/
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dontasan size_t wcslen(const wchar_t *s) {
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#ifdef __x86_64__
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#if defined(__x86_64__) && !defined(__chibicc__)
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size_t n;
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xmm_t z = {0};
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unsigned m, k = (uintptr_t)s & 15;
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@ -30,7 +30,7 @@ extern const uint32_t kCombiningCharsBits;
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* Returns cell width of monospace character.
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*/
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int wcwidth(wchar_t c) {
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#ifdef __x86_64__
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#if defined(__x86_64__) && !defined(__chibicc__)
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if (LIKELY(32 <= c && c < 127)) {
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return 1;
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} else if (!c) {
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@ -35,7 +35,7 @@ static inline const wchar_t *wmemrchr_pure(const wchar_t *s, wchar_t c,
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return 0;
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}
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#ifdef __x86_64__
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#if defined(__x86_64__) && !defined(__chibicc__)
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dontasan static inline const wchar_t *wmemrchr_sse(const wchar_t *s, wchar_t c,
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size_t n) {
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size_t i;
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@ -68,7 +68,7 @@ dontasan static inline const wchar_t *wmemrchr_sse(const wchar_t *s, wchar_t c,
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* @asyncsignalsafe
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*/
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void *wmemrchr(const wchar_t *s, wchar_t c, size_t n) {
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#ifdef __x86_64__
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#if defined(__x86_64__) && !defined(__chibicc__)
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size_t bytes;
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const void *r;
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if (IsAsan()) {
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