mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-01 03:53:33 +00:00
23e235b7a5
This change integrates e58abc1110b335a3341e8ad5821ad8e3880d9bb2 from https://github.com/ahgamut/musl-cross-make/ which fixes the issues we were having with our C language extension for symbolic constants. This change also performs some code cleanup and bug fixes to getaddrinfo(). It's now possible to compile projects like ncurses, readline and python without needing to patch anything upstream, except maybe a line or two. Pretty soon it should be possible to build a Linux distro on Cosmo.
138 lines
4.5 KiB
C
138 lines
4.5 KiB
C
/*-*- 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 2021 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/atomic.h"
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#include "libc/calls/calls.h"
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#include "libc/errno.h"
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#include "libc/macros.internal.h"
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#include "libc/nexgen32e/nexgen32e.h"
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#include "libc/runtime/internal.h"
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#include "libc/runtime/stack.h"
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#include "libc/testlib/testlib.h"
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#include "libc/thread/spawn.h"
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int x, me, tid;
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atomic_int thechilde;
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void SetUpOnce(void) {
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__enable_threads();
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ASSERT_SYS(0, 0, pledge("stdio rpath", 0));
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}
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int Hog(void *arg, int tid) {
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return 0;
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}
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void SetUp(void) {
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x = 0;
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me = gettid();
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}
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void TearDown(void) {
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}
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int DoNothing(void *arg) {
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return 0;
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}
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////////////////////////////////////////////////////////////////////////////////
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// TEST THREADS WORK
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int CloneTest1(void *arg, int tid) {
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intptr_t rsp, top, bot;
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CheckStackIsAligned();
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// PrintBacktraceUsingSymbols(2, __builtin_frame_address(0),
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// GetSymbolTable());
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rsp = (intptr_t)__builtin_frame_address(0);
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bot = ROUNDDOWN((intptr_t)rsp, GetStackSize());
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top = bot + GetStackSize();
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ASSERT_GT(rsp, bot); // check we're on stack
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ASSERT_LT(rsp, top); // check we're on stack
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ASSERT_GT(rsp, top - 256); // check we're near top of stack
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ASSERT_TRUE(IS2POW(GetStackSize()));
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ASSERT_EQ(0, bot & (GetStackSize() - 1));
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x = 42;
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ASSERT_EQ(23, (intptr_t)arg);
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ASSERT_NE(gettid(), getpid());
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return 0;
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}
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TEST(clone, test1) {
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int ptid = 0;
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struct spawn th;
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ASSERT_SYS(0, 0, _spawn(CloneTest1, (void *)23, &th));
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ASSERT_SYS(0, 0, _join(&th));
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ASSERT_NE(gettid(), tid);
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ASSERT_EQ(tid, ptid);
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ASSERT_EQ(42, x);
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ASSERT_NE(me, tid);
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ASSERT_EQ(0, errno);
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errno = 31337;
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ASSERT_EQ(31337, errno);
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errno = 0;
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}
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////////////////////////////////////////////////////////////////////////////////
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// TEST THREADS CAN ISSUE SYSTEM CALLS WITH INDEPENDENT ERRNOS
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atomic_int sysbarrier;
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int CloneTestSys(void *arg, int tid) {
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int i, id = (intptr_t)arg;
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CheckStackIsAligned();
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while (!sysbarrier) donothing;
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for (i = 0; i < 20; ++i) {
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switch (id % 3) {
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case 0:
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errno = 123;
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open(0, 0);
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donothing;
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ASSERT_EQ(EFAULT, errno);
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break;
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case 1:
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errno = 123;
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dup(-1);
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donothing;
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ASSERT_EQ(EBADF, errno);
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break;
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case 2:
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errno = 123;
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dup3(0, 0, 0);
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donothing;
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ASSERT_EQ(EINVAL, errno);
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break;
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default:
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__builtin_unreachable();
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}
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}
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return 0;
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}
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TEST(clone, tlsSystemCallsErrno_wontClobberMainThreadBecauseTls) {
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int i;
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struct spawn th[8];
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ASSERT_EQ(0, errno);
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for (i = 0; i < 8; ++i) {
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ASSERT_SYS(0, 0, _spawn(CloneTestSys, (void *)(intptr_t)i, th + i));
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}
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sysbarrier = 1;
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for (i = 0; i < 8; ++i) {
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ASSERT_SYS(0, 0, _join(th + i));
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}
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ASSERT_EQ(0, errno);
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}
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