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Add chibicc

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This program popped up on Hacker News recently. It's the only modern
compiler I've ever seen that doesn't have dependencies and is easily
modified. So I added all of the missing GNU extensions I like to use
which means it might be possible soon to build on non-Linux and have
third party not vendor gcc binaries.
This commit is contained in:
Justine Tunney 2020-12-05 12:20:41 -08:00
parent e44a0cf6f8
commit 8da931a7f6
298 changed files with 19493 additions and 11950 deletions
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9
libc/str/str.h
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@ -238,8 +238,8 @@ char *strsignal(int) returnsnonnull libcesque;
╚────────────────────────────────────────────────────────────────────────────│*/
#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
char *_strncpy(char *, const char *, size_t) asm("strncpy") memcpyesque;
#define strncpy(DEST, SRC, N) _strncpy(DEST, SRC, N) /* pacify bad warning */
char *__strncpy(char *, const char *, size_t) memcpyesque;
#define strncpy(DEST, SRC, N) __strncpy(DEST, SRC, N) /* pacify bad warning */
#define explicit_bzero(STR, BYTES) \
do { \
@ -318,7 +318,7 @@ char *_strncpy(char *, const char *, size_t) asm("strncpy") memcpyesque;
size_t SiZe = (SIZE); \
size_t Rcx; \
asm("rep movsb" \
: "=D"(Rdi), "=S"(Rsi), "=D"(Rcx), "=m"(*(char(*)[SiZe])(Dest)) \
: "=D"(Rdi), "=S"(Rsi), "=c"(Rcx), "=m"(*(char(*)[SiZe])(Dest)) \
: "0"(Dest), "1"(Src), "2"(SiZe), "m"(*(const char(*)[SiZe])(Src)) \
: "cc"); \
Rdi; \
@ -351,9 +351,6 @@ char *_strncpy(char *, const char *, size_t) asm("strncpy") memcpyesque;
#endif /* hosted/sse2/unbloat */
size_t _strlen(const char *s) asm("strlen") strlenesque;
void *_memchr(const void *, int, size_t) asm("memchr") strlenesque;
#endif /* __GNUC__ && !__STRICT_ANSI__ */
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */