mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-12 17:27:56 +00:00
416fd86676
- 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
329 lines
12 KiB
C
329 lines
12 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
|
|
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
|
|
╞══════════════════════════════════════════════════════════════════════════════╡
|
|
│ Copyright 2020 Justine Alexandra Roberts Tunney │
|
|
│ │
|
|
│ This program is free software; you can redistribute it and/or modify │
|
|
│ it under the terms of the GNU General Public License as published by │
|
|
│ the Free Software Foundation; version 2 of the License. │
|
|
│ │
|
|
│ This program is distributed in the hope that it will be useful, but │
|
|
│ WITHOUT ANY WARRANTY; without even the implied warranty of │
|
|
│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
|
|
│ General Public License for more details. │
|
|
│ │
|
|
│ You should have received a copy of the GNU General Public License │
|
|
│ along with this program; if not, write to the Free Software │
|
|
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
|
|
│ 02110-1301 USA │
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
#include "libc/bits/progn.h"
|
|
#include "libc/fmt/bing.h"
|
|
#include "libc/math.h"
|
|
#include "libc/mem/mem.h"
|
|
#include "libc/runtime/gc.h"
|
|
#include "libc/stdio/stdio.h"
|
|
#include "libc/testlib/ezbench.h"
|
|
#include "libc/testlib/testlib.h"
|
|
#include "libc/x/x.h"
|
|
#include "tool/build/lib/endian.h"
|
|
#include "tool/build/lib/fpu.h"
|
|
#include "tool/build/lib/machine.h"
|
|
#include "tool/build/lib/memory.h"
|
|
|
|
const uint8_t kPi80[] = {
|
|
0xd9, 0xe8, // fld1
|
|
0xb8, 0x0a, 0x00, 0x00, 0x00, // mov $0xa,%eax
|
|
0x31, 0xd2, // xor %edx,%edx
|
|
0xd9, 0xee, // fldz
|
|
0x48, 0x98, // cltq
|
|
0x48, 0x39, 0xc2, // cmp %rax,%rdx
|
|
0xd9, 0x05, 0x1a, 0x00, 0x00, 0x00, // flds 0x1a(%rip)
|
|
0x7d, 0x13, // jge 2b <pi80+0x2b>
|
|
0xde, 0xc1, // faddp
|
|
0x48, 0xff, 0xc2, // inc %rdx
|
|
0xd9, 0xfa, // fsqrt
|
|
0xd9, 0x05, 0x0f, 0x00, 0x00, 0x00, // flds 15(%rip)
|
|
0xd8, 0xc9, // fmul %st(1),%st
|
|
0xde, 0xca, // fmulp %st,%st(2)
|
|
0xeb, 0xe2, // jmp d <pi80+0xd>
|
|
0xdd, 0xd9, // fstp %st(1)
|
|
0xde, 0xf1, // fdivp
|
|
0xf4, // hlt
|
|
0x00, 0x00, 0x00, 0x40, // .float 2.0
|
|
0x00, 0x00, 0x00, 0x3f, // .float 0.5
|
|
};
|
|
|
|
const uint8_t kTenthprime[] = {
|
|
0x31, 0xd2, // xor %edx,%edx
|
|
0x45, 0x31, 0xc0, // xor %r8d,%r8d
|
|
0x31, 0xc9, // xor %ecx,%ecx
|
|
0xbe, 0x03, 0x00, 0x00, 0x00, // mov $0x3,%esi
|
|
0x41, 0xff, 0xc0, // inc %r8d
|
|
0x44, 0x89, 0xc0, // mov %r8d,%eax
|
|
0x83, 0xf9, 0x0a, // cmp $0xa,%ecx
|
|
0x74, 0x0b, // je 20
|
|
0x99, // cltd
|
|
0xf7, 0xfe, // idiv %esi
|
|
0x83, 0xfa, 0x01, // cmp $0x1,%edx
|
|
0x83, 0xd9, 0xff, // sbb $-1,%ecx
|
|
0xeb, 0xea, // jmp a
|
|
0xf4, // hlt
|
|
};
|
|
|
|
const uint8_t kTenthprime2[] = {
|
|
0xE8, 0x11, 0x00, 0x00, 0x00, //
|
|
0xF4, //
|
|
0x89, 0xF8, //
|
|
0xB9, 0x03, 0x00, 0x00, 0x00, //
|
|
0x99, //
|
|
0xF7, 0xF9, //
|
|
0x85, 0xD2, //
|
|
0x0F, 0x95, 0xC0, //
|
|
0xC3, //
|
|
0x55, //
|
|
0x48, 0x89, 0xE5, //
|
|
0x31, 0xF6, //
|
|
0x45, 0x31, 0xC0, //
|
|
0x44, 0x89, 0xC7, //
|
|
0xE8, 0xDF, 0xFF, 0xFF, 0xFF, //
|
|
0x0F, 0xB6, 0xC0, //
|
|
0x66, 0x83, 0xF8, 0x01, //
|
|
0x83, 0xDE, 0xFF, //
|
|
0x41, 0xFF, 0xC0, //
|
|
0x83, 0xFE, 0x0A, //
|
|
0x75, 0xE6, //
|
|
0x44, 0x89, 0xC0, //
|
|
0x5D, //
|
|
0xC3, //
|
|
};
|
|
|
|
int64_t base;
|
|
uint8_t *real;
|
|
size_t realsize;
|
|
struct Machine *m;
|
|
|
|
void SetUp(void) {
|
|
base = 0;
|
|
m = NewMachine();
|
|
m->cr3 = MallocPage();
|
|
realsize = 0x10000;
|
|
real = tmemalign(PAGESIZE, ROUNDUP(realsize, PAGESIZE));
|
|
RegisterMemory(m, base, real, realsize);
|
|
m->ip = base;
|
|
Write64(m->sp, m->ip + realsize);
|
|
}
|
|
|
|
void TearDown(void) {
|
|
ResetRam(m);
|
|
free(m->cr3);
|
|
tfree(real);
|
|
free(m);
|
|
}
|
|
|
|
int ExecuteUntilHalt(struct Machine *m) {
|
|
int rc;
|
|
if (!(rc = setjmp(m->onhalt))) {
|
|
for (;;) {
|
|
LoadInstruction(m);
|
|
ExecuteInstruction(m);
|
|
}
|
|
} else {
|
|
return rc;
|
|
}
|
|
}
|
|
|
|
TEST(machine, test) {
|
|
memcpy(real, kTenthprime, sizeof(kTenthprime));
|
|
ASSERT_EQ(kMachineHalt, ExecuteUntilHalt(m));
|
|
ASSERT_EQ(15, Read32(m->ax));
|
|
}
|
|
|
|
TEST(machine, testFpu) {
|
|
memcpy(real, kPi80, sizeof(kPi80));
|
|
ASSERT_EQ(kMachineHalt, ExecuteUntilHalt(m));
|
|
ASSERT_TRUE(fabs(3.14159 - FpuPop(m)) < 0.0001);
|
|
m->ip = base;
|
|
ASSERT_EQ(kMachineHalt, ExecuteUntilHalt(m));
|
|
ASSERT_TRUE(fabs(3.14159 - FpuPop(m)) < 0.0001);
|
|
}
|
|
|
|
BENCH(machine, benchPrimeNumberPrograms) {
|
|
memcpy(real, kTenthprime2, sizeof(kTenthprime2));
|
|
EZBENCH2("tenthprime2", m->ip = base, ExecuteUntilHalt(m));
|
|
ASSERT_EQ(15, Read32(m->ax));
|
|
memcpy(real, kTenthprime, sizeof(kTenthprime));
|
|
EZBENCH2("tenthprime", m->ip = base, ExecuteUntilHalt(m));
|
|
ASSERT_EQ(15, Read32(m->ax));
|
|
}
|
|
|
|
BENCH(machine, benchFpu) {
|
|
memcpy(real, kPi80, sizeof(kPi80));
|
|
EZBENCH2("pi80", m->ip = base, PROGN(ExecuteUntilHalt(m), FpuPop(m)));
|
|
}
|
|
|
|
BENCH(machine, benchLoadExec2) {
|
|
uint8_t kMovCode[] = {0xbe, 0x03, 0x00, 0x00, 0x00};
|
|
memcpy(real, kMovCode, sizeof(kMovCode));
|
|
LoadInstruction(m);
|
|
EZBENCH2("mov", m->ip = base, ExecuteInstruction(m));
|
|
}
|
|
|
|
BENCH(machine, benchLoadExec3) {
|
|
uint8_t kMovdCode[] = {0x66, 0x0f, 0x6e, 0xc0};
|
|
Write64(m->ax, 0);
|
|
memcpy(real, kMovdCode, sizeof(kMovdCode));
|
|
LoadInstruction(m);
|
|
EZBENCH2("movd", m->ip = base, ExecuteInstruction(m));
|
|
}
|
|
|
|
BENCH(machine, benchLoadExec4) {
|
|
uint8_t kAddpsRegregCode[] = {0x0f, 0x58, 0xC0};
|
|
uint8_t kAddpsMemregCode[] = {0x0f, 0x58, 0x00};
|
|
Write64(m->ax, 0);
|
|
memcpy(real, kAddpsRegregCode, sizeof(kAddpsRegregCode));
|
|
LoadInstruction(m);
|
|
EZBENCH2("addps reg reg", m->ip = base, ExecuteInstruction(m));
|
|
memcpy(real, kAddpsMemregCode, sizeof(kAddpsMemregCode));
|
|
LoadInstruction(m);
|
|
EZBENCH2("addps mem reg", m->ip = base, ExecuteInstruction(m));
|
|
}
|
|
|
|
BENCH(machine, benchLoadExec5) {
|
|
uint8_t kPaddwRegregCode[] = {0x66, 0x0F, 0xFD, 0xC0};
|
|
uint8_t kPaddwMemregCode[] = {0x66, 0x0F, 0xFD, 0x00};
|
|
Write64(m->ax, 0);
|
|
memcpy(real, kPaddwRegregCode, sizeof(kPaddwRegregCode));
|
|
LoadInstruction(m);
|
|
EZBENCH2("paddw", m->ip = base, ExecuteInstruction(m));
|
|
memcpy(real, kPaddwMemregCode, sizeof(kPaddwMemregCode));
|
|
LoadInstruction(m);
|
|
EZBENCH2("paddw mem", m->ip = base, ExecuteInstruction(m));
|
|
}
|
|
|
|
BENCH(machine, benchLoadExec6) {
|
|
uint8_t kPsubqRegregCode[] = {0x66, 0x0F, 0xFB, 0xC0};
|
|
uint8_t kPsubqMemregCode[] = {0x66, 0x0F, 0xFB, 0x00};
|
|
Write64(m->ax, 0);
|
|
memcpy(real, kPsubqRegregCode, sizeof(kPsubqRegregCode));
|
|
LoadInstruction(m);
|
|
EZBENCH2("psubq", m->ip = base, ExecuteInstruction(m));
|
|
memcpy(real, kPsubqMemregCode, sizeof(kPsubqMemregCode));
|
|
LoadInstruction(m);
|
|
EZBENCH2("psubq mem", m->ip = base, ExecuteInstruction(m));
|
|
}
|
|
|
|
BENCH(machine, benchAddqMem) {
|
|
uint8_t kAddMemregCode[] = {0x48, 0x03, 0x08};
|
|
Write64(m->ax, 0);
|
|
memcpy(real, kAddMemregCode, sizeof(kAddMemregCode));
|
|
LoadInstruction(m);
|
|
EZBENCH2("addq mem", m->ip = base, ExecuteInstruction(m));
|
|
}
|
|
|
|
BENCH(machine, benchAddlMem) {
|
|
uint8_t kAddMemregCode[] = {0x03, 0x08};
|
|
Write64(m->ax, 0);
|
|
memcpy(real, kAddMemregCode, sizeof(kAddMemregCode));
|
|
LoadInstruction(m);
|
|
EZBENCH2("addl mem", m->ip = base, ExecuteInstruction(m));
|
|
}
|
|
|
|
BENCH(machine, benchAddq) {
|
|
uint8_t kAddqCode[] = {0x48, 0x01, 0xd8};
|
|
Write64(m->ax, 0);
|
|
memcpy(real, kAddqCode, sizeof(kAddqCode));
|
|
LoadInstruction(m);
|
|
EZBENCH2("addq", m->ip = base, ExecuteInstruction(m));
|
|
}
|
|
|
|
BENCH(machine, benchAddb) {
|
|
uint8_t kAddbCode[] = {0x00, 0xd8};
|
|
Write64(m->ax, 0);
|
|
memcpy(real, kAddbCode, sizeof(kAddbCode));
|
|
LoadInstruction(m);
|
|
EZBENCH2("addb", m->ip = base, ExecuteInstruction(m));
|
|
}
|
|
|
|
BENCH(machine, benchXorReg) {
|
|
memcpy(real, kTenthprime, sizeof(kTenthprime));
|
|
LoadInstruction(m);
|
|
EZBENCH2("xor", m->ip = base, ExecuteInstruction(m));
|
|
}
|
|
|
|
BENCH(machine, benchLoadExec8) {
|
|
uint8_t kFchsCode[] = {0xd9, 0xe0};
|
|
Write64(m->ax, 0);
|
|
OpFinit(m);
|
|
*FpuSt(m, 0) = M_PI;
|
|
FpuSetTag(m, 0, kFpuTagValid);
|
|
memcpy(real, kFchsCode, sizeof(kFchsCode));
|
|
LoadInstruction(m);
|
|
EZBENCH2("fchs", m->ip = base, ExecuteInstruction(m));
|
|
}
|
|
|
|
BENCH(machine, benchPushpop) {
|
|
uint8_t kPushpop[] = {0x50, 0x58};
|
|
Write64(m->ax, 0);
|
|
memcpy(real, kPushpop, sizeof(kPushpop));
|
|
EZBENCH2("pushpop", m->ip = base,
|
|
PROGN(LoadInstruction(m), ExecuteInstruction(m), LoadInstruction(m),
|
|
ExecuteInstruction(m)));
|
|
}
|
|
|
|
BENCH(machine, benchPause) {
|
|
uint8_t kPause[] = {0xf3, 0x90};
|
|
Write64(m->ax, 0);
|
|
memcpy(real, kPause, sizeof(kPause));
|
|
LoadInstruction(m);
|
|
EZBENCH2("pause", m->ip = base, ExecuteInstruction(m));
|
|
}
|
|
|
|
BENCH(machine, benchClc) {
|
|
uint8_t kClc[] = {0xf8};
|
|
Write64(m->ax, 0);
|
|
memcpy(real, kClc, sizeof(kClc));
|
|
LoadInstruction(m);
|
|
EZBENCH2("clc", m->ip = base, ExecuteInstruction(m));
|
|
}
|
|
|
|
BENCH(machine, benchNop) {
|
|
uint8_t kNop[] = {0x90};
|
|
Write64(m->ax, 0);
|
|
memcpy(real, kNop, sizeof(kNop));
|
|
LoadInstruction(m);
|
|
EZBENCH2("nop", m->ip = base, ExecuteInstruction(m));
|
|
}
|
|
|
|
TEST(machine, sizeIsReasonable) {
|
|
ASSERT_LE(sizeof(struct Machine), 65536 * 3);
|
|
}
|
|
|
|
TEST(x87, fprem1) {
|
|
// 1 rem -1.5
|
|
const uint8_t prog[] = {
|
|
0xd9, 0x05, 0x05, 0x00, 0x00, 0x00, // flds
|
|
0xd9, 0xe8, // fld1
|
|
0xd9, 0xf8, // fprem
|
|
0xf4, // hlt
|
|
0x00, 0x00, 0xc0, 0xbf, // .float -1.5
|
|
};
|
|
memcpy(real, prog, sizeof(prog));
|
|
ASSERT_EQ(kMachineHalt, ExecuteUntilHalt(m));
|
|
ASSERT_LDBL_EQ(1, FpuPop(m));
|
|
}
|
|
|
|
TEST(x87, fprem2) {
|
|
// 12300000000000000. rem .0000000000000123
|
|
const uint8_t prog[] = {
|
|
0xdd, 0x05, 0x11, 0x00, 0x00, 0x00, // fldl
|
|
0xdd, 0x05, 0x03, 0x00, 0x00, 0x00, // fldl
|
|
0xd9, 0xf8, // fprem
|
|
0xf4, // hlt
|
|
0x00, 0x60, 0x5e, 0x75, 0x64, 0xd9, 0x45, 0x43, //
|
|
0x5b, 0x14, 0xea, 0x9d, 0x77, 0xb2, 0x0b, 0x3d, //
|
|
};
|
|
memcpy(real, prog, sizeof(prog));
|
|
ASSERT_EQ(kMachineHalt, ExecuteUntilHalt(m));
|
|
ASSERT_LDBL_EQ(1.1766221079117338e-14, FpuPop(m));
|
|
}
|