mirror of
https://github.com/jart/cosmopolitan.git
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c23b6ecc31
You can now use psapi.dll and pdh.dll. Some TODOs for Windows have been cleared out. We might have a working load average for the platform that should help GNU Make work well.
66 lines
3 KiB
C
66 lines
3 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/calls/calls.h"
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#include "libc/calls/struct/sigaction.h"
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#include "libc/runtime/runtime.h"
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#include "libc/sysv/consts/prot.h"
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#include "libc/sysv/consts/sa.h"
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#include "libc/testlib/testlib.h"
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jmp_buf jb;
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bool gotsegv;
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struct sigaction old[2];
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void OnSigSegv(int sig) {
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gotsegv = true;
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longjmp(jb, 1);
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}
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void SetUp(void) {
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sigaction(SIGBUS, NULL, &old[0]);
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sigaction(SIGSEGV, NULL, &old[1]);
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}
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void TearDown(void) {
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sigaction(SIGBUS, &old[0], NULL);
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sigaction(SIGSEGV, &old[1], NULL);
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}
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TEST(mprotect, test) {
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char *p = gc(memalign(PAGESIZE, PAGESIZE));
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p[0] = 0;
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ASSERT_NE(-1, mprotect(p, PAGESIZE, PROT_READ | PROT_WRITE));
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p[0] = 1;
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EXPECT_EQ(1, p[0]);
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}
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TEST(mprotect, testSegfault) {
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char *p;
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struct sigaction ss = {.sa_handler = OnSigSegv, .sa_flags = SA_NODEFER};
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p = gc(memalign(PAGESIZE, PAGESIZE));
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EXPECT_NE(-1, sigaction(SIGBUS, &ss, NULL));
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EXPECT_NE(-1, sigaction(SIGSEGV, &ss, NULL));
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if (!setjmp(jb)) p[0] = 1;
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EXPECT_FALSE(gotsegv);
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EXPECT_NE(-1, mprotect(p, sizeof(p), PROT_READ));
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if (!setjmp(jb)) p[0] = 2;
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EXPECT_TRUE(gotsegv);
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EXPECT_EQ(1, p[0]);
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EXPECT_NE(-1, mprotect(p, sizeof(p), PROT_READ | PROT_WRITE));
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}
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