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Get Cosmopolitan into releasable state

Browse source 
A new rollup tool now exists for flattening out the headers in a way
that works better for our purposes than cpp. A lot of the API clutter
has been removed. APIs that aren't a sure thing in terms of general
recommendation are now marked internal.

There's now a smoke test for the amalgamation archive and gigantic
header file. So we can now guarantee you can use this project on the
easiest difficulty setting without the gigantic repository.

A website is being created, which is currently a work in progress:
https://justine.storage.googleapis.com/cosmopolitan/index.html
This commit is contained in:
Justine Tunney 2020-11-25 08:19:00 -08:00
parent dba7552c1e
commit ea0b5d9d1c
775 changed files with 6864 additions and 3963 deletions
Download patch file Download diff file Expand all files Collapse all files

2
libc/bits/avx2intrin.h → libc/bits/avx2intrin.internal.h
View file

@ -1,6 +1,6 @@
#ifndef COSMOPOLITAN_LIBC_BITS_AVX2INTRIN_H_
#define COSMOPOLITAN_LIBC_BITS_AVX2INTRIN_H_
#include "libc/bits/avxintrin.h"
#include "libc/bits/avxintrin.internal.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_

0
libc/bits/avxintrin.h → libc/bits/avxintrin.internal.h
View file

42
libc/bits/bcd2i.S
View file

@ -1,42 +0,0 @@
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
│vi: set et ft=asm ts=8 sw=8 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/macros.h"
/ Converts binary-coded-decimal to integer.
/
/ @param rdi is the string copied into a word
bcd2i: .leafprologue
.profilable
test %rdi,%rdi
je 2f
mov $1,%ecx
xor %eax,%eax
1: mov %edi,%edx
and $15,%edx
imul %rcx,%rdx
add %rdx,%rax
add %rcx,%rcx
lea (%rcx,%rcx,4),%rcx
shr $4,%rdi
jne 1b
ret
2: xor %eax,%eax
.leafepilogue
.endfn bcd2i,globl

54
libc/bits/bcxcpy.S
View file

@ -1,54 +0,0 @@
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
│vi: set et ft=asm ts=8 sw=8 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/macros.h"
bcxcpy: push %rbp
mov %rsp,%rbp
.profilable
push %rbx
xor %ebx,%ebx
lea -64(%rbp),%rdx
sub $24,%rsp
3: lea (,%rbx,4),%ecx
mov %rsi,%rax
shr %cl,%rax
and $15,%eax
cmp $9,%eax
lea 7(%rax),%ecx
cmova %ecx,%eax
add $48,%eax
mov %al,(%rdx,%rbx)
add $1,%rbx
cmp $16,%rbx
jne 3b
mov %rdx,%rax
lea -48(%rbp),%rcx
lea 15(%rdi),%rdx
4: movzbl (%rax),%ebx
add $1,%rax
sub $1,%rdx
mov %bl,1(%rdx)
cmp %rcx,%rax
jne 4b
add $24,%rsp
pop %rbx
pop %rbp
ret
.endfn bcxcpy,globl

28
libc/bits/bigword.h
View file

@ -1,28 +0,0 @@
#ifndef COSMOPOLITAN_LIBC_BITS_BIGWORD_H_
#define COSMOPOLITAN_LIBC_BITS_BIGWORD_H_
#if 0
/**
* Let BIGWORD be the the number of bytes in the largest cpu register
* available within the instruction set architecture requirements chosen
* at compile-time.
*
* In plainer terms, if you tune with flags like -mavx, you're not just
* giving the compiler permission to generate code that's incompatible
* with older computers; you're also asking Cosmopolitan to systemically
* change alignment, vectoring, buffering, ABIs, memory allocation, etc.
*/
#endif
#ifndef BIGWORD
#if __AVX512F__ + 0
#define BIGWORD 64
#elif __AVX2__ + 0
#define BIGWORD 32
#elif __SSE2__ + 0
#define BIGWORD 16
#else
#define BIGWORD __BIGGEST_ALIGNMENT__
#endif
#endif /*BIGWORD*/
#endif /* COSMOPOLITAN_LIBC_BITS_BIGWORD_H_ */

16
libc/bits/bigword.internal.h Normal file
View file

@ -0,0 +1,16 @@
#ifndef COSMOPOLITAN_LIBC_BITS_BIGWORD_H_
#define COSMOPOLITAN_LIBC_BITS_BIGWORD_H_
#ifndef BIGWORD
#if __AVX512F__ + 0
#define BIGWORD 64
#elif __AVX2__ + 0
#define BIGWORD 32
#elif __SSE2__ + 0
#define BIGWORD 16
#else
#define BIGWORD __BIGGEST_ALIGNMENT__
#endif
#endif /*BIGWORD*/
#endif /* COSMOPOLITAN_LIBC_BITS_BIGWORD_H_ */

19
libc/bits/bitreverse16.S → libc/bits/bitreverse16.c
View file

@ -1,5 +1,5 @@
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
│vi: set et ft=asm ts=8 tw=8 fenc=utf-8 :vi│
/*-*- 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 │
│ │
@ -17,15 +17,8 @@
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/macros.h"
#include "libc/bits/bits.h"
bitreverse16:
push %rbx
mov %edi,%eax
mov $kReverseBits,%ebx
xlat
xchg %al,%ah
xlat
pop %rbx
ret
.endfn bitreverse16,globl
uint16_t(bitreverse16)(uint16_t x) {
return kReverseBits[x & 0x00FF] << 8 | kReverseBits[(x & 0xFF00) >> 8];
}

19
libc/bits/bitreverse8.S → libc/bits/bitreverse8.c
View file

@ -1,5 +1,5 @@
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
│vi: set et ft=asm ts=8 tw=8 fenc=utf-8 :vi│
/*-*- 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 │
│ │
@ -17,15 +17,8 @@
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/macros.h"
#include "libc/bits/bits.h"
bitreverse8:
.leafprologue
.profilable
push %rbx
mov %edi,%eax
mov $kReverseBits,%ebx
xlat
pop %rbx
.leafepilogue
.endfn bitreverse8,globl
uint8_t(bitreverse8)(uint8_t x) {
return kReverseBits[x];
}

65
libc/bits/bits.h
View file

@ -9,42 +9,26 @@ COSMOPOLITAN_C_START_
│ cosmopolitan § bits ─╬─│┼
╚────────────────────────────────────────────────────────────────────────────│*/
extern const bool kTrue;
extern const bool kFalse;
extern const uint8_t kReverseBits[256];
uint32_t gray(uint32_t) pureconst;
uint32_t ungray(uint32_t) pureconst;
unsigned bcdadd(unsigned, unsigned) pureconst;
unsigned long bcd2i(unsigned long) pureconst;
unsigned long i2bcd(unsigned long) pureconst;
void bcxcpy(unsigned char (*)[16], unsigned long);
int ffs(int) pureconst;
int ffsl(long int) pureconst;
int ffsll(long long int) pureconst;
int fls(int) pureconst;
int flsl(long int) pureconst;
int flsll(long long int) pureconst;
uint8_t bitreverse8(uint8_t) libcesque pureconst;
uint16_t bitreverse16(uint16_t) libcesque pureconst;
uint32_t bitreverse32(uint32_t) libcesque pureconst;
uint64_t bitreverse64(uint64_t) libcesque pureconst;
unsigned long roundup2pow(unsigned long) libcesque pureconst;
unsigned long roundup2log(unsigned long) libcesque pureconst;
unsigned long rounddown2pow(unsigned long) libcesque pureconst;
unsigned long hamming(unsigned long, unsigned long) pureconst;
/*───────────────────────────────────────────────────────────────────────────│─╗
│ cosmopolitan § bits » no assembly required ─╬─│┼
╚────────────────────────────────────────────────────────────────────────────│*/
/**
* Undocumented incantations for ROR, ROL, and SAR.
*/
#define ROR(w, k) (CheckUnsigned(w) >> (k) | (w) << (sizeof(w) * 8 - (k)))
#define ROL(w, k) ((w) << (k) | CheckUnsigned(w) >> (sizeof(w) * 8 - (k)))
#define SAR(w, k) (((w) & ~(~0u >> (k))) | ((w) >> ((k) & (sizeof(w) * 8 - 1))))
#define bitreverse8(X) (kReverseBits[(uint8_t)(X)])
#define bitreverse16(X) \
((uint16_t)kReverseBits[(uint8_t)(X)] << 010 | \
@ -253,49 +237,6 @@ unsigned long hamming(unsigned long, unsigned long) pureconst;
Val; \
})
/**
* Returns true if bit is set in memory.
*
* This is a generically-typed Bitset<T> ∀ RAM. This macro is intended
* to be container-like with optimal machine instruction encoding, cf.
* machine-agnostic container abstractions. Memory accesses are words.
* Register allocation can be avoided if BIT is known. Be careful when
* casting character arrays since that should cause a page fault.
*
* @param MEM is uint𝑘_t[] where 𝑘 ∈ {16,32,64} base address
* @param BIT ∈ [-(2**(𝑘-1)),2**(𝑘-1)) is zero-based index
* @return true if bit is set, otherwise false
* @see Intel's Six Thousand Page Manual V.2A 3-113
* @see bts(), btr(), btc()
*/
#define bt(MEM, BIT) \
({ \
bool OldBit; \
if (isconstant(BIT)) { \
asm(CFLAG_ASM("bt%z1\t%2,%1") \
: CFLAG_CONSTRAINT(OldBit) \
: "m"((MEM)[(BIT) / (sizeof((MEM)[0]) * CHAR_BIT)]), \
"J"((BIT) % (sizeof((MEM)[0]) * CHAR_BIT)) \
: "cc"); \
} else if (sizeof((MEM)[0]) == 2) { \
asm(CFLAG_ASM("bt\t%w2,%1") \
: CFLAG_CONSTRAINT(OldBit) \
: "m"((MEM)[0]), "r"(BIT) \
: "cc"); \
} else if (sizeof((MEM)[0]) == 4) { \
asm(CFLAG_ASM("bt\t%k2,%1") \
: CFLAG_CONSTRAINT(OldBit) \
: "m"((MEM)[0]), "r"(BIT) \
: "cc"); \
} else if (sizeof((MEM)[0]) == 8) { \
asm(CFLAG_ASM("bt\t%q2,%1") \
: CFLAG_CONSTRAINT(OldBit) \
: "m"((MEM)[0]), "r"(BIT) \
: "cc"); \
} \
OldBit; \
})
#define bts(MEM, BIT) __BitOp("bts", BIT, MEM) /** bit test and set */
#define btr(MEM, BIT) __BitOp("btr", BIT, MEM) /** bit test and reset */
#define btc(MEM, BIT) __BitOp("btc", BIT, MEM) /** bit test and complement */

4
libc/bits/emmintrin.h → libc/bits/emmintrin.internal.h
View file

@ -1,7 +1,7 @@
#ifndef COSMOPOLITAN_LIBC_BITS_EMMINTRIN_H_
#define COSMOPOLITAN_LIBC_BITS_EMMINTRIN_H_
#include "libc/bits/progn.h"
#include "libc/bits/xmmintrin.h"
#include "libc/bits/progn.internal.h"
#include "libc/bits/xmmintrin.internal.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
/*───────────────────────────────────────────────────────────────────────────│─╗

12
libc/bits/gray.c
View file

@ -17,14 +17,8 @@
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/bits/bits.h"
uint32_t gray(uint32_t x) { return x ^ (x >> 1); }
uint32_t ungray(uint32_t x) {
x ^= x >> 16;
x ^= x >> 8;
x ^= x >> 4;
x ^= x >> 2;
x ^= x >> 1;
return x;
uint32_t gray(uint32_t x) {
return x ^ (x >> 1);
}

48
libc/bits/i2bcd.S
View file

@ -1,48 +0,0 @@
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
│vi: set et ft=asm ts=8 sw=8 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/macros.h"
/ Converts integer to binary-coded decimal.
i2bcd: .leafprologue
.profilable
test %rdi,%rdi
je 2f
mov %rdi,%rsi
xor %r9d,%r9d
mov $0xcccccccccccccccd,%r8
xor %ecx,%ecx
1: mov %rsi,%rax
mul %r8
shr $3,%rdx
lea (%rdx,%rdx),%rax
lea (%rax,%rax,4),%rax
mov %rsi,%rdi
sub %rax,%rdi
shl %cl,%rdi
add %rdi,%r9
add $4,%rcx
cmp $9,%rsi
mov %rdx,%rsi
ja 1b
jmp 3f
2: xor %r9d,%r9d
3: mov %r9,%rax
.leafepilogue
.endfn i2bcd,globl

2
libc/bits/initializer.h → libc/bits/initializer.internal.h
View file

@ -2,6 +2,8 @@
#define COSMOPOLITAN_LIBC_BITS_INITIALIZER_H_
#if !(__ASSEMBLER__ + __LINKER__ + 0)
/* TODO: DELETE */
/**
* Teleports code fragment inside _init().
*/

0
libc/bits/mmintrin.h → libc/bits/mmintrin.internal.h
View file

0
libc/bits/pmmintrin.h → libc/bits/pmmintrin.internal.h
View file

0
libc/bits/progn.h → libc/bits/progn.internal.h
View file

0
libc/bits/safemacros.h → libc/bits/safemacros.internal.h
View file

4
libc/bits/shaintrin.h → libc/bits/shaintrin.internal.h
View file

@ -1,7 +1,7 @@
#ifndef COSMOPOLITAN_LIBC_BITS_SHAINTRIN_H_
#define COSMOPOLITAN_LIBC_BITS_SHAINTRIN_H_
#include "libc/bits/emmintrin.h"
#include "libc/bits/xmmintrin.h"
#include "libc/bits/emmintrin.internal.h"
#include "libc/bits/xmmintrin.internal.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
#define _mm_sha1rnds4_epu32(M128I_0, M128I_1, MEM) \

0
libc/bits/smmintrin.h → libc/bits/smmintrin.internal.h
View file

2
libc/bits/tmmintrin.h → libc/bits/tmmintrin.internal.h
View file

@ -1,6 +1,6 @@
#ifndef COSMOPOLITAN_LIBC_BITS_TMMINTRIN_H_
#define COSMOPOLITAN_LIBC_BITS_TMMINTRIN_H_
#include "libc/bits/emmintrin.h"
#include "libc/bits/emmintrin.internal.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
/*───────────────────────────────────────────────────────────────────────────│─╗

14
libc/bits/typecheck.h
View file

@ -1,14 +0,0 @@
#ifndef COSMOPOLITAN_LIBC_BITS_TYPECHECK_H_
#define COSMOPOLITAN_LIBC_BITS_TYPECHECK_H_
#if !(__ASSEMBLER__ + __LINKER__ + 0)
#define TYPECHECK(T, X) \
({ \
T Lol1; \
typeof(X) Lol2; \
(void)(&Lol1 == &Lol2); \
X; \
})
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_BITS_TYPECHECK_H_ */

31
libc/bits/bcdadd.S → libc/bits/ungray.c
View file

@ -1,5 +1,5 @@
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
│vi: set et ft=asm ts=8 sw=8 fenc=utf-8 :vi│
/*-*- 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 │
│ │
@ -17,22 +17,13 @@
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/macros.h"
#include "libc/bits/bits.h"
/ Performs addition on binary-coded decimals.
bcdadd: .leafprologue
.profilable
lea 0x6666666(%rdi),%ecx
xor %esi,%ecx
lea (%rdi,%rsi),%eax
add $0x6666666,%eax
xor %eax,%ecx
not %ecx
and $0x11111110,%ecx
mov %ecx,%edx
shr $2,%edx
shr $3,%ecx
orl %edx,%ecx
sub %ecx,%eax
.leafepilogue
.endfn bcdadd,globl
uint32_t ungray(uint32_t x) {
x ^= x >> 16;
x ^= x >> 8;
x ^= x >> 4;
x ^= x >> 2;
x ^= x >> 1;
return x;
}

2
libc/bits/unsignedsubtract.c
View file

@ -17,7 +17,7 @@
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/bits/safemacros.h"
#include "libc/bits/safemacros.internal.h"
/**
* Subtracts unsigned integers w/ wraparound.

2
libc/bits/wmmintrin.h → libc/bits/wmmintrin.internal.h
View file

@ -1,6 +1,6 @@
#ifndef COSMOPOLITAN_LIBC_BITS_WMMINTRIN_H_
#define COSMOPOLITAN_LIBC_BITS_WMMINTRIN_H_
#include "libc/bits/emmintrin.h"
#include "libc/bits/emmintrin.internal.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
#define _mm_clmulepi64_si128(X, Y, IMM) \

6
libc/bits/xmmintrin.h → libc/bits/xmmintrin.internal.h
View file

@ -1,8 +1,8 @@
#ifndef COSMOPOLITAN_LIBC_BITS_XMMINTRIN_H_
#define COSMOPOLITAN_LIBC_BITS_XMMINTRIN_H_
#include "libc/bits/emmintrin.h"
#include "libc/bits/mmintrin.h"
#include "libc/bits/progn.h"
#include "libc/bits/emmintrin.internal.h"
#include "libc/bits/mmintrin.internal.h"
#include "libc/bits/progn.internal.h"
#include "libc/dce.h"
#define _MM_EXCEPT_MASK 0x003f