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Improve cosmo's conformance to libc-test

Browse source 
This change addresses various open source compatibility issues, so that
we pass 313/411 of the tests in https://github.com/jart/libc-test where
earlier today we were passing about 30/411 of them, due to header toil.
Please note that Glibc only passes 341/411 so 313 today is pretty good!

- Make the conformance of libc/isystem/ headers nearly perfect
- Import more of the remaining math library routines from Musl
- Fix inconsistencies with type signatures of calls like umask
- Write tests for getpriority/setpriority which work great now
- conform to `struct sockaddr *` on remaining socket functions
- Import a bunch of uninteresting stdlib functions e.g. rand48
- Introduce readdir_r, scandir, pthread_kill, sigsetjmp, etc..

Follow the instructions in our `tool/scripts/cosmocc` toolchain to run
these tests yourself. You use `make CC=cosmocc` on the test repository
This commit is contained in:
Justine Tunney 2022-10-10 17:52:41 -07:00
parent 467a332e38
commit e557058ac8
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
189 changed files with 5091 additions and 884 deletions
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32
libc/runtime/__sigsetjmp_tail.c Normal file
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@ -0,0 +1,32 @@
/*-*- 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 2022 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/assert.h"
#include "libc/calls/struct/sigset.h"
#include "libc/runtime/runtime.h"
#include "libc/sysv/consts/sig.h"
// kudos rich felker for the brilliant design
hidden int __sigsetjmp_tail(sigjmp_buf jb, int rc) {
_Static_assert(
sizeof(sigjmp_buf) == sizeof(jmp_buf) + 8 + 8 + sizeof(sigset_t),
"please recompute sigjmp_buf w.r.t. sigset_t");
void *p = (char *)jb + sizeof(jmp_buf) + 8 + 8;
_npassert(!sigprocmask(SIG_SETMASK, rc ? p : 0, rc ? 0 : p));
return rc;
}

56
libc/runtime/daemon.c Normal file
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@ -0,0 +1,56 @@
/*-*- 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 2022 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/paths.h"
#include "libc/sysv/consts/o.h"
/**
* Daemonizes process.
*/
int daemon(int nochdir, int noclose) {
int fd;
switch (fork()) {
case -1:
return (-1);
case 0:
break;
default:
_Exit(0);
}
if (setsid() == -1) {
return -1;
}
if (!nochdir) {
chdir("/");
}
if (!noclose && (fd = open(_PATH_DEVNULL, O_RDWR)) != -1) {
dup2(fd, 0);
dup2(fd, 1);
dup2(fd, 2);
if (fd > 2) {
close(fd);
}
}
return 0;
}

6
libc/runtime/enable_tls.c
View file

@ -34,6 +34,7 @@
#include "libc/stdalign.internal.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/nrlinux.h"
#include "libc/thread/posixthread.internal.h"
#include "libc/thread/tls.h"
#include "third_party/xed/x86.h"
@ -57,6 +58,7 @@ typedef char xmm_t __attribute__((__vector_size__(16), __aligned__(1)));
__msabi extern typeof(TlsAlloc) *const __imp_TlsAlloc;
struct PosixThread _pthread_main;
extern unsigned char __tls_mov_nt_rax[];
extern unsigned char __tls_add_nt_rax[];
_Alignas(TLS_ALIGNMENT) static char __static_tls[5008];
@ -127,6 +129,7 @@ privileged void __enable_tls(void) {
tib->tib_self = tib;
tib->tib_self2 = tib;
tib->tib_errno = __errno;
tib->tib_pthread = (pthread_t)&_pthread_main;
if (IsLinux()) {
// gnu/systemd guarantees pid==tid for the main thread so we can
// avoid issuing a superfluous system call at startup in program
@ -134,6 +137,9 @@ privileged void __enable_tls(void) {
} else {
tib->tib_tid = sys_gettid();
}
_pthread_main.tib = tib;
_pthread_main.tid = tib->tib_tid;
_pthread_main.flags = PT_MAINTHREAD;
__repmovsb(tls, _tdata_start, _TLDZ);
// ask the operating system to change the x86 segment register

119
libc/runtime/fenv.S Normal file
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@ -0,0 +1,119 @@
/*-*- 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│
╞══════════════════════════════════════════════════════════════════════════════╡
│ │
│ Musl Libc │
│ Copyright © 2005-2014 Rich Felker, et al. │
│ │
│ Permission is hereby granted, free of charge, to any person obtaining │
│ a copy of this software and associated documentation files (the │
│ "Software"), to deal in the Software without restriction, including │
│ without limitation the rights to use, copy, modify, merge, publish, │
│ distribute, sublicense, and/or sell copies of the Software, and to │
│ permit persons to whom the Software is furnished to do so, subject to │
│ the following conditions: │
│ │
│ The above copyright notice and this permission notice shall be │
│ included in all copies or substantial portions of the Software. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, │
│ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF │
│ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. │
│ IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY │
│ CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, │
│ TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE │
│ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. │
│ │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/macros.internal.h"
feclearexcept:
# maintain exceptions in the sse mxcsr, clear x87 exceptions
mov %edi,%ecx
and $0x3f,%ecx
fnstsw %ax
test %eax,%ecx
jz 1f
fnclex
1: stmxcsr -8(%rsp)
and $0x3f,%eax
or %eax,-8(%rsp)
test %ecx,-8(%rsp)
jz 1f
not %ecx
and %ecx,-8(%rsp)
ldmxcsr -8(%rsp)
1: xor %eax,%eax
ret
.endfn feclearexcept,globl
feraiseexcept:
and $0x3f,%edi
stmxcsr -8(%rsp)
or %edi,-8(%rsp)
ldmxcsr -8(%rsp)
xor %eax,%eax
ret
.endfn feraiseexcept,globl
__fesetround:
push %rax
xor %eax,%eax
mov %edi,%ecx
fnstcw (%rsp)
andb $0xf3,1(%rsp)
or %ch,1(%rsp)
fldcw (%rsp)
stmxcsr (%rsp)
shl $3,%ch
andb $0x9f,1(%rsp)
or %ch,1(%rsp)
ldmxcsr (%rsp)
pop %rcx
ret
.endfn __fesetround,globl,hidden
fegetround:
push %rax
stmxcsr (%rsp)
pop %rax
shr $3,%eax
and $0xc00,%eax
ret
.endfn fegetround,globl
fegetenv:
xor %eax,%eax
fnstenv (%rdi)
stmxcsr 28(%rdi)
ret
.endfn fegetenv,globl
fesetenv:
xor %eax,%eax
inc %rdi
jz 1f
fldenv -1(%rdi)
ldmxcsr 27(%rdi)
ret
1: push %rax
push %rax
pushq $0xffff
pushq $0x37f
fldenv (%rsp)
pushq $0x1f80
ldmxcsr (%rsp)
add $40,%rsp
ret
.endfn fesetenv,globl
fetestexcept:
and $0x3f,%edi
push %rax
stmxcsr (%rsp)
pop %rsi
fnstsw %ax
or %esi,%eax
and %edi,%eax
ret
.endfn fetestexcept,globl

10
libc/runtime/fenv.h
View file

@ -7,16 +7,24 @@
#define FE_TOWARDZERO 0x0c00
#define FE_INVALID 1
#define __FE_DENORM 2
#define FE_DIVBYZERO 4
#define FE_OVERFLOW 8
#define FE_UNDERFLOW 16
#define FE_INEXACT 32
#define FE_ALL_EXCEPT 61
#define FE_ALL_EXCEPT 63
#ifdef __FLT_EVAL_METHOD__
#define FLT_EVAL_METHOD __FLT_EVAL_METHOD__
#else
#define FLT_EVAL_METHOD 0
#endif
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
#define FLT_ROUNDS (__flt_rounds())
#define FE_DFL_ENV ((const fenv_t *)-1)
typedef void *fenv_t;
typedef uint16_t fexcept_t;

4
libc/runtime/runtime.h
View file

@ -7,6 +7,7 @@ COSMOPOLITAN_C_START_
╚────────────────────────────────────────────────────────────────────────────│*/
typedef long jmp_buf[8];
typedef long sigjmp_buf[12];
extern char **environ; /* CRT */
extern int __argc; /* CRT */
@ -49,6 +50,7 @@ extern size_t __virtualmax;
extern bool __isworker;
void mcount(void);
int daemon(int, int);
int _freestack(void *);
void _bt(const char *, ...);
unsigned long getauxval(unsigned long);
@ -60,6 +62,8 @@ void longjmp(jmp_buf, int) libcesque wontreturn paramsnonnull();
axdx_t setlongerjmp(jmp_buf) libcesque returnstwice paramsnonnull();
void longerjmp(jmp_buf, intptr_t) libcesque wontreturn paramsnonnull();
int _setjmp(jmp_buf) libcesque returnstwice paramsnonnull();
int sigsetjmp(sigjmp_buf, int) libcesque returnstwice paramsnonnull();
void siglongjmp(sigjmp_buf, int) libcesque wontreturn paramsnonnull();
void _longjmp(jmp_buf, int) libcesque wontreturn paramsnonnull();
void exit(int) wontreturn;
void _exit(int) libcesque wontreturn;

49
libc/runtime/sigsetjmp.S Normal file
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@ -0,0 +1,49 @@
/*-*- 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│
╞══════════════════════════════════════════════════════════════════════════════╡
│ │
│ Musl Libc │
│ Copyright © 2005-2014 Rich Felker, et al. │
│ │
│ Permission is hereby granted, free of charge, to any person obtaining │
│ a copy of this software and associated documentation files (the │
│ "Software"), to deal in the Software without restriction, including │
│ without limitation the rights to use, copy, modify, merge, publish, │
│ distribute, sublicense, and/or sell copies of the Software, and to │
│ permit persons to whom the Software is furnished to do so, subject to │
│ the following conditions: │
│ │
│ The above copyright notice and this permission notice shall be │
│ included in all copies or substantial portions of the Software. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, │
│ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF │
│ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. │
│ IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY │
│ CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, │
│ TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE │
│ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. │
│ │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/macros.internal.h"
// Saves caller CPU state and signal mask.
//
// @param rdi points to jmp_buf
// @param esi if non-zero will cause mask to be saved
// @return eax 0 when set and !0 when longjmp'd
// @returnstwice
sigsetjmp:
test %esi,%esi
jz setjmp
popq 64(%rdi)
mov %rbx,72(%rdi)
mov %rdi,%rbx
call setjmp
pushq 64(%rbx)
mov %rbx,%rdi
mov %eax,%esi
mov 72(%rdi),%rbx
jmp __sigsetjmp_tail
.hidden __sigsetjmp_tail
.endfn sigsetjmp,globl

148
libc/runtime/sysconf.h
View file

@ -1,13 +1,147 @@
#ifndef COSMOPOLITAN_LIBC_RUNTIME_SYSCONF_H_
#define COSMOPOLITAN_LIBC_RUNTIME_SYSCONF_H_
#define _SC_ARG_MAX 0
#define _SC_CHILD_MAX 1
#define _SC_CLK_TCK 2
#define _SC_OPEN_MAX 4
#define _SC_PAGESIZE 30
#define _SC_PAGE_SIZE 30
#define _SC_NPROCESSORS_ONLN 1002
#define _SC_ARG_MAX 0
#define _SC_CHILD_MAX 1
#define _SC_CLK_TCK 2
#define _SC_NGROUPS_MAX 3
#define _SC_OPEN_MAX 4
#define _SC_STREAM_MAX 5
#define _SC_TZNAME_MAX 6
#define _SC_JOB_CONTROL 7
#define _SC_SAVED_IDS 8
#define _SC_REALTIME_SIGNALS 9
#define _SC_PRIORITY_SCHEDULING 10
#define _SC_TIMERS 11
#define _SC_ASYNCHRONOUS_IO 12
#define _SC_PRIORITIZED_IO 13
#define _SC_SYNCHRONIZED_IO 14
#define _SC_FSYNC 15
#define _SC_MAPPED_FILES 16
#define _SC_MEMLOCK 17
#define _SC_MEMLOCK_RANGE 18
#define _SC_MEMORY_PROTECTION 19
#define _SC_MESSAGE_PASSING 20
#define _SC_SEMAPHORES 21
#define _SC_SHARED_MEMORY_OBJECTS 22
#define _SC_AIO_LISTIO_MAX 23
#define _SC_AIO_MAX 24
#define _SC_AIO_PRIO_DELTA_MAX 25
#define _SC_DELAYTIMER_MAX 26
#define _SC_MQ_OPEN_MAX 27
#define _SC_MQ_PRIO_MAX 28
#define _SC_VERSION 29
#define _SC_PAGE_SIZE 30
#define _SC_PAGESIZE 30 /* !! */
#define _SC_RTSIG_MAX 31
#define _SC_SEM_NSEMS_MAX 32
#define _SC_SEM_VALUE_MAX 33
#define _SC_SIGQUEUE_MAX 34
#define _SC_TIMER_MAX 35
#define _SC_BC_BASE_MAX 36
#define _SC_BC_DIM_MAX 37
#define _SC_BC_SCALE_MAX 38
#define _SC_BC_STRING_MAX 39
#define _SC_COLL_WEIGHTS_MAX 40
#define _SC_EXPR_NEST_MAX 42
#define _SC_LINE_MAX 43
#define _SC_RE_DUP_MAX 44
#define _SC_2_VERSION 46
#define _SC_2_C_BIND 47
#define _SC_2_C_DEV 48
#define _SC_2_FORT_DEV 49
#define _SC_2_FORT_RUN 50
#define _SC_2_SW_DEV 51
#define _SC_2_LOCALEDEF 52
#define _SC_UIO_MAXIOV 60 /* !! */
#define _SC_IOV_MAX 60
#define _SC_THREADS 67
#define _SC_THREAD_SAFE_FUNCTIONS 68
#define _SC_GETGR_R_SIZE_MAX 69
#define _SC_GETPW_R_SIZE_MAX 70
#define _SC_LOGIN_NAME_MAX 71
#define _SC_TTY_NAME_MAX 72
#define _SC_THREAD_DESTRUCTOR_ITERATIONS 73
#define _SC_THREAD_KEYS_MAX 74
#define _SC_THREAD_STACK_MIN 75
#define _SC_THREAD_THREADS_MAX 76
#define _SC_THREAD_ATTR_STACKADDR 77
#define _SC_THREAD_ATTR_STACKSIZE 78
#define _SC_THREAD_PRIORITY_SCHEDULING 79
#define _SC_THREAD_PRIO_INHERIT 80
#define _SC_THREAD_PRIO_PROTECT 81
#define _SC_THREAD_PROCESS_SHARED 82
#define _SC_NPROCESSORS_CONF 83
#define _SC_NPROCESSORS_ONLN 84
#define _SC_PHYS_PAGES 85
#define _SC_AVPHYS_PAGES 86
#define _SC_ATEXIT_MAX 87
#define _SC_PASS_MAX 88
#define _SC_XOPEN_VERSION 89
#define _SC_XOPEN_XCU_VERSION 90
#define _SC_XOPEN_UNIX 91
#define _SC_XOPEN_CRYPT 92
#define _SC_XOPEN_ENH_I18N 93
#define _SC_XOPEN_SHM 94
#define _SC_2_CHAR_TERM 95
#define _SC_2_UPE 97
#define _SC_XOPEN_XPG2 98
#define _SC_XOPEN_XPG3 99
#define _SC_XOPEN_XPG4 100
#define _SC_NZERO 109
#define _SC_XBS5_ILP32_OFF32 125
#define _SC_XBS5_ILP32_OFFBIG 126
#define _SC_XBS5_LP64_OFF64 127
#define _SC_XBS5_LPBIG_OFFBIG 128
#define _SC_XOPEN_LEGACY 129
#define _SC_XOPEN_REALTIME 130
#define _SC_XOPEN_REALTIME_THREADS 131
#define _SC_ADVISORY_INFO 132
#define _SC_BARRIERS 133
#define _SC_CLOCK_SELECTION 137
#define _SC_CPUTIME 138
#define _SC_THREAD_CPUTIME 139
#define _SC_MONOTONIC_CLOCK 149
#define _SC_READER_WRITER_LOCKS 153
#define _SC_SPIN_LOCKS 154
#define _SC_REGEXP 155
#define _SC_SHELL 157
#define _SC_SPAWN 159
#define _SC_SPORADIC_SERVER 160
#define _SC_THREAD_SPORADIC_SERVER 161
#define _SC_TIMEOUTS 164
#define _SC_TYPED_MEMORY_OBJECTS 165
#define _SC_2_PBS 168
#define _SC_2_PBS_ACCOUNTING 169
#define _SC_2_PBS_LOCATE 170
#define _SC_2_PBS_MESSAGE 171
#define _SC_2_PBS_TRACK 172
#define _SC_SYMLOOP_MAX 173
#define _SC_STREAMS 174
#define _SC_2_PBS_CHECKPOINT 175
#define _SC_V6_ILP32_OFF32 176
#define _SC_V6_ILP32_OFFBIG 177
#define _SC_V6_LP64_OFF64 178
#define _SC_V6_LPBIG_OFFBIG 179
#define _SC_HOST_NAME_MAX 180
#define _SC_TRACE 181
#define _SC_TRACE_EVENT_FILTER 182
#define _SC_TRACE_INHERIT 183
#define _SC_TRACE_LOG 184
#define _SC_IPV6 235
#define _SC_RAW_SOCKETS 236
#define _SC_V7_ILP32_OFF32 237
#define _SC_V7_ILP32_OFFBIG 238
#define _SC_V7_LP64_OFF64 239
#define _SC_V7_LPBIG_OFFBIG 240
#define _SC_SS_REPL_MAX 241
#define _SC_TRACE_EVENT_NAME_MAX 242
#define _SC_TRACE_NAME_MAX 243
#define _SC_TRACE_SYS_MAX 244
#define _SC_TRACE_USER_EVENT_MAX 245
#define _SC_XOPEN_STREAMS 246
#define _SC_THREAD_ROBUST_PRIO_INHERIT 247
#define _SC_THREAD_ROBUST_PRIO_PROTECT 248
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_