mirror of
https://github.com/jart/cosmopolitan.git
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Make improvements
- Emulator can now test the αcτµαlly pδrταblε εxεcµταblε bootloader - Whipped up a webserver named redbean. It services 150k requests per second on a single core. Bundling assets inside zip enables extremely fast serving for two reasons. The first is that zip central directory lookups go faster than stat() system calls. The second is that both zip and gzip content-encoding use DEFLATE, therefore, compressed responses can be served via the sendfile() system call which does an in-kernel copy directly from the zip executable structure. Also note that red bean zip executables can be deployed easily to all platforms, since these native executables work on Linux, Mac, BSD, and Windows. - Address sanitizer now works very well
This commit is contained in:
Justine Tunney
parent
7327c345f9
commit
416fd86676
230 changed files with 9835 additions and 5682 deletions
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@ -49,6 +49,15 @@ o/$(MODE)/tool/build/emubin/%.bin.dbg: \
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$(TOOL_BUILD_EMUBIN_A).pkg
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@$(ELFLINK) -e emucrt -z max-page-size=0x10
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o/$(MODE)/tool/build/emubin/real/spiral.o: tool/build/emubin/real/spiral.c
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@$(MKDIR) $(@D)
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/opt/cross/bin/i486-linux-musl-gcc -nostdlib -nostdinc -m16 -Os -g -c -o $@ $<
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o/$(MODE)/tool/build/emubin/real/spiral.bin: o/$(MODE)/tool/build/emubin/real/spiral.o
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/opt/cross/bin/i486-linux-musl-ld -static -nostdlib --oformat=binary -T tool/build/emubin/real/spiral.lds -o $@ $^
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o/$(MODE)/tool/build/emubin/hug.o: OVERRIDE_CFLAGS += -ffast-math
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.PHONY: o/$(MODE)/tool/build/emubin
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o/$(MODE)/tool/build/emubin: \
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$(TOOL_BUILD_EMUBIN_BINS) \
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@ -28,7 +28,7 @@ static void Print(uint8_t c) {
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int main(int argc, char *argv[]) {
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int i;
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#ifdef DISINGENUOUS
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for (i = 0; i < 100 * 1000 * 1000 / 3; ++i) asm("nop");
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for (i = 0; i < 150 * 1000 * 1000 / 3; ++i) asm("nop");
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#else
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size_t size;
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struct MetalSha256Ctx ctx;
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128
tool/build/emubin/real/spiral.c
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128
tool/build/emubin/real/spiral.c
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@ -0,0 +1,128 @@
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ This program is free software; you can redistribute it and/or modify │
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│ it under the terms of the GNU General Public License as published by │
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│ the Free Software Foundation; version 2 of the License. │
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│ │
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│ This program is distributed in the hope that it will be useful, but │
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│ WITHOUT ANY WARRANTY; without even the implied warranty of │
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│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
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│ General Public License for more details. │
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│ │
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│ You should have received a copy of the GNU General Public License │
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│ along with this program; if not, write to the Free Software │
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
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│ 02110-1301 USA │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#define signbit(x) __builtin_signbit(x)
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static const unsigned char kBlocks[] = {
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[0b1111] = 0xdb, // █
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[0b0110] = 0xdb, // █
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[0b1001] = 0xdb, // █
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[0b0111] = 0xdb, // █
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[0b1011] = 0xdb, // █
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[0b1110] = 0xdb, // █
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[0b1101] = 0xdb, // █
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[0b1100] = 0xdc, // ▄
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[0b0100] = 0xdc, // ▄
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[0b1000] = 0xdc, // ▄
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[0b0101] = 0xdd, // ▌
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[0b1010] = 0xde, // ▐
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[0b0011] = 0xdf, // ▀
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[0b0010] = 0xdf, // ▀
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[0b0001] = 0xdf, // ▀
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};
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static void *memset(void *di, int al, unsigned long cx) {
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asm("rep stosb %%al,(%0)"
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: "=D"(di), "=c"(cx), "=m"(*(char(*)[cx])di)
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: "0"(di), "1"(cx), "a"(al));
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return di;
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}
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static long double pi(void) {
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long double x;
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asm("fldpi" : "=t"(x));
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return x;
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}
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static void sincosl(long double x, long double *sin, long double *cos) {
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asm("fsincos" : "=t"(*sin), "=u"(*cos) : "0"(x));
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}
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static long double atan2l(long double x, long double y) {
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asm("fpatan" : "+t"(x) : "u"(y) : "st(1)");
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return x;
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}
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static long lrintl(long double x) {
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long i;
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asm("fistp%z0\t%0" : "=m"(i) : "t"(x) : "st");
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return i;
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}
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static long double truncl(long double x) {
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asm("frndint" : "+t"(x));
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return x;
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}
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static long double fabsl(long double x) {
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asm("fabs" : "+t"(x));
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return x;
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}
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static long lroundl(long double x) {
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int s = signbit(x);
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x = truncl(fabsl(x) + .5);
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if (s) x = -x;
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return lrintl(x);
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}
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static unsigned short GetFpuControlWord(void) {
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unsigned short cw;
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asm("fnstcw\t%0" : "=m"(cw));
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return cw;
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}
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static void SetFpuControlWord(unsigned short cw) {
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asm volatile("fldcw\t%0" : /* no outputs */ : "m"(cw));
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}
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static void SetTruncationRounding(void) {
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SetFpuControlWord(GetFpuControlWord() | 0x0c00);
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}
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static void spiral(unsigned char p[25][80][2], unsigned char B[25][80]) {
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int i, x, y;
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long double a, b, u, v, h;
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for (a = b = i = 0; i < 1000; ++i) {
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sincosl(a, &u, &v);
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h = atan2l(u, v);
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x = lroundl(80 + u * b);
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y = lroundl(25 + v * b * (1. / ((266 / 64.) * (900 / 1600.))));
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B[y >> 1][x >> 1] |= 1 << ((y & 1) << 1 | (x & 1));
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p[y >> 1][x >> 1][0] = kBlocks[B[y >> 1][x >> 1]];
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p[y >> 1][x >> 1][1] = (lrintl((h + pi() * 2) * (8 / (pi() * 2))) & 7) + 8;
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a += .05;
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b += .05;
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}
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}
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int main() {
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asm(".pushsection .start,\"ax\",@progbits\n\t"
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".globl\t_start\n"
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"_start:\n\t"
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"callw\tmain\n\t"
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".popsection");
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SetTruncationRounding();
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for (;;) {
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memset((void *)0x40000, 0, 25 * 80);
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memset((void *)0xb8000, 0, 25 * 80 * 2);
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spiral((void *)0xb8000, (void *)0x40000);
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}
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}
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37
tool/build/emubin/real/spiral.lds
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37
tool/build/emubin/real/spiral.lds
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@ -0,0 +1,37 @@
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/*-*- mode: ld-script; indent-tabs-mode: nil; tab-width: 2; coding: utf-8 -*-│
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│vi: set et sts=2 tw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ This program is free software; you can redistribute it and/or modify │
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│ it under the terms of the GNU General Public License as published by │
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│ the Free Software Foundation; version 2 of the License. │
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│ │
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│ This program is distributed in the hope that it will be useful, but │
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│ WITHOUT ANY WARRANTY; without even the implied warranty of │
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│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
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│ General Public License for more details. │
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│ │
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│ You should have received a copy of the GNU General Public License │
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│ along with this program; if not, write to the Free Software │
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
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│ 02110-1301 USA │
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╚─────────────────────────────────────────────────────────────────────────────*/
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ENTRY(_start)
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SECTIONS {
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.text 0x7c00 : {
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*(.start)
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*(.text .text.*)
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*(.rodata .rodata.*)
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*(.data .data.*)
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*(.bss .bss.*)
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*(COMMON)
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}
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/DISCARD/ : {
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*(.*)
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}
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}
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