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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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38
tool/calc/calc.c
View file

@ -18,6 +18,7 @@
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/bits/bits.h"
#include "libc/bits/bswap.h"
#include "libc/bits/safemacros.internal.h"
#include "libc/calls/calls.h"
#include "libc/conv/conv.h"
@ -37,6 +38,7 @@
#include "libc/x/x.h"
#include "o/tool/calc/calc.c.inc"
#include "o/tool/calc/calc.h.inc"
#include "third_party/gdtoa/gdtoa.h"
#include "tool/calc/calc.h"
/**
@ -51,28 +53,28 @@ static int g_column;
static const char *g_file;
static yyParser g_parser[1];
noreturn static void Error(const char *msg) {
wontreturn static void Error(const char *msg) {
fprintf(stderr, "%s:%d:%d: %s\n", g_file, g_line, g_column, msg);
longjmp(jb, 1);
}
noreturn static void SyntaxError(void) {
wontreturn static void SyntaxError(void) {
Error("SYNTAX ERROR");
}
noreturn static void LexError(void) {
wontreturn static void LexError(void) {
Error("LEX ERROR");
}
noreturn static void MissingArgumentError(void) {
wontreturn static void MissingArgumentError(void) {
Error("MISSING ARGUMENT");
}
noreturn static void MissingFunctionError(void) {
wontreturn static void MissingFunctionError(void) {
Error("MISSING FUNCTION");
}
noreturn static void SyscallError(const char *name) {
wontreturn static void SyscallError(const char *name) {
fprintf(stderr, "ERROR: %s[%s]: %d\n", name, g_file, errno);
exit(1);
}
@ -395,6 +397,21 @@ static long double FnFpclassify(struct Numbers *a) {
return fpclassify(a->x);
}
static long double FnBswap16(struct Numbers *a) {
if (!a) MissingArgumentError();
return bswap_16((uint16_t)a->x);
}
static long double FnBswap32(struct Numbers *a) {
if (!a) MissingArgumentError();
return bswap_32((uint32_t)a->x);
}
static long double FnBswap64(struct Numbers *a) {
if (!a) MissingArgumentError();
return bswap_64((uint64_t)a->x);
}
static long double FnBsr(struct Numbers *a) {
if (!a) MissingArgumentError();
return bsr(a->x);
@ -611,9 +628,9 @@ static long double FnHex(struct Numbers *a) {
}
static void PrintNumber(long double x) {
char b[32];
g_fmt(b, x);
fputs(b, stdout);
char buf[32];
g_xfmt_p(buf, &x, 15, sizeof(buf), 0);
fputs(buf, stdout);
}
static void Print(struct Numbers *a) {
@ -648,6 +665,9 @@ static const struct Fn {
{"bsfl", FnBsfl},
{"bsr", FnBsr},
{"bsrl", FnBsrl},
{"bswap16", FnBswap16},
{"bswap32", FnBswap32},
{"bswap64", FnBswap64},
{"cbrt", FnCbrt},
{"ceil", FnCeil},
{"copysign", FnCopysign},