mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-07-03 09:48:29 +00:00
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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@ -43,7 +43,7 @@ static void bzero128(char *p, size_t n) {
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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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_Microarchitecture("avx") static void bzero_avx(char *p, size_t n) {
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xmm_t v = {0};
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if (IsAsan()) __asan_verify(p, n);
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@ -154,7 +154,7 @@ void bzero(void *p, size_t n) {
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b[--n] = x;
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} while (n);
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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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} else if (IsTiny()) {
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asm("rep stosb" : "+D"(b), "+c"(n), "=m"(*(char(*)[n])b) : "a"(0));
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return;
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@ -35,7 +35,7 @@ static inline const unsigned char *memchr_pure(const unsigned char *s,
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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 unsigned char *memchr_sse(const unsigned char *s,
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unsigned char c,
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size_t n) {
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@ -71,7 +71,7 @@ dontasan static inline const unsigned char *memchr_sse(const unsigned char *s,
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* @asyncsignalsafe
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*/
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void *memchr(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 (IsAsan()) __asan_verify(s, n);
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r = memchr_sse(s, c, n);
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@ -26,7 +26,7 @@
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typedef char xmm_t __attribute__((__vector_size__(16), __aligned__(1)));
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#ifdef __x86_64__
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#if defined(__x86_64__) && !defined(__chibicc__)
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static dontinline antiquity int memcmp_sse(const unsigned char *p,
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const unsigned char *q, size_t n) {
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@ -143,7 +143,7 @@ int memcmp(const void *a, const void *b, size_t n) {
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const unsigned char *p, *q;
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if ((p = a) == (q = b) || !n) return 0;
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if ((c = *p - *q)) return c;
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#ifdef __x86_64__
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#if defined(__x86_64__) && !defined(__chibicc__)
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if (!IsTiny()) {
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if (n <= 16) {
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if (n >= 8) {
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@ -95,7 +95,7 @@ void *memmove(void *dst, const void *src, size_t n) {
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d = dst;
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s = src;
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#ifdef __x86__
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#if defined(__x86_64__) && !defined(__chibicc__)
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if (IsTiny()) {
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uint16_t w1, w2;
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uint32_t l1, l2;
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@ -214,7 +214,7 @@ void *memmove(void *dst, const void *src, size_t n) {
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default:
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if (d == s) return d;
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#ifdef __x86__
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#if defined(__x86_64__) && !defined(__chibicc__)
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if (n < kHalfCache3 || !kHalfCache3) {
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if (d > s) {
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if (IsAsan() || n < 900 || !X86_HAVE(ERMS)) {
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@ -35,7 +35,7 @@ static inline const unsigned char *memrchr_pure(const unsigned char *s,
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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 unsigned char *memrchr_sse(const unsigned char *s,
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unsigned char c,
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size_t n) {
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@ -69,7 +69,7 @@ dontasan static inline const unsigned char *memrchr_sse(const unsigned char *s,
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* @asyncsignalsafe
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*/
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void *memrchr(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 (IsAsan()) __asan_verify(s, n);
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r = memrchr_sse(s, c, n);
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@ -24,9 +24,9 @@
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#include "libc/str/str.h"
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#ifndef __aarch64__
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#ifndef __chibicc__
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typedef char xmm_t __attribute__((__vector_size__(16), __aligned__(1)));
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typedef long long xmm_a __attribute__((__vector_size__(16), __aligned__(16)));
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static void *memset_sse(char *p, char c, size_t n) {
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xmm_t v = {c, c, c, c, c, c, c, c, c, c, c, c, c, c, c, c};
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if (IsAsan()) __asan_verify(p, n);
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@ -44,8 +44,9 @@ static void *memset_sse(char *p, char c, size_t n) {
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}
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return p;
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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 void *memset_avx(char *p, char c, size_t n) {
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char *t;
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xmm_t v = {c, c, c, c, c, c, c, c, c, c, c, c, c, c, c, c};
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@ -158,7 +159,7 @@ void *memset(void *p, int c, size_t n) {
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} while (n);
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}
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return b;
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#ifdef __x86__
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#if defined(__x86_64__) && !defined(__chibicc__)
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} else if (IsTiny()) {
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asm("rep stosb" : "+D"(b), "+c"(n), "=m"(*(char(*)[n])b) : "a"(c));
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return p;
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@ -38,7 +38,7 @@ dontasan char *stpcpy(char *d, const char *s) {
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if (IsAsan()) {
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__asan_verify(d, strlen(s) + 1);
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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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for (; (uintptr_t)(s + i) & 15; ++i) {
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if (!(d[i] = s[i])) {
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return d + i;
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@ -30,7 +30,7 @@ static inline const char *strchr_pure(const char *s, int c) {
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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 *strchr_sse(const char *s, unsigned char c) {
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unsigned k;
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@ -95,7 +95,7 @@ static dontasan inline const char *strchr_x64(const char *p, uint64_t c) {
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* @vforksafe
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*/
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char *strchr(const char *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 char *r;
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if (X86_HAVE(SSE)) {
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if (IsAsan()) __asan_verify(s, 1);
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@ -30,7 +30,7 @@ static inline const char *strchrnul_pure(const char *s, int c) {
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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 *strchrnul_sse(const char *s,
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unsigned char c) {
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@ -94,7 +94,7 @@ dontasan static const char *strchrnul_x64(const char *p, uint64_t c) {
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* NUL terminator if c is not found
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*/
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char *strchrnul(const char *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 char *r;
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if (X86_HAVE(SSE)) {
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if (IsAsan()) __asan_verify(s, 1);
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@ -39,7 +39,7 @@ dontasan char *strcpy(char *d, const char *s) {
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if (IsAsan()) {
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__asan_verify(d, strlen(s) + 1);
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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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for (; (uintptr_t)(s + i) & 15; ++i) {
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if (!(d[i] = s[i])) {
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return d;
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@ -30,7 +30,7 @@
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*/
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dontasan size_t strlen(const char *s) {
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if (IsAsan()) __asan_verify_str(s);
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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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xmm_t z = {0};
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unsigned m, k = (uintptr_t)s & 15;
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@ -2,11 +2,15 @@
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#define COSMOPOLITAN_LIBC_BITS_WEAKEN_H_
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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#ifndef __chibicc__
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#define _weaken(symbol) \
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__extension__({ \
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extern __typeof__(symbol) symbol __attribute__((__weak__)); \
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&symbol; \
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})
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#else
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#define _weaken(symbol) (&(symbol))
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#endif
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_BITS_WEAKEN_H_ */
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