mirror of
https://github.com/jart/cosmopolitan.git
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5546559034
- We now kill the program on violations like OpenBSD
- We now print a message explaining which promise is needed
- This change also fixes a linkage bug with thread local storage
- Your sigaction() handlers should now be more thread safe
A new `__pledge_mode` global has been introduced to make pledge() more
customizable on Linux. For example:
__attribute__((__constructor__)) static void init(void) {
__pledge_mode = SECCOMP_RET_ERRNO | EPERM;
}
Can be used to restore our old permissive pledge() behavior.
46 lines
2.6 KiB
C
46 lines
2.6 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 2022 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/intrin/asan.internal.h"
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#include "libc/intrin/kprintf.h"
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#include "libc/runtime/internal.h"
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#include "libc/runtime/runtime.h"
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#include "libc/testlib/testlib.h"
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_Thread_local int x;
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_Thread_local int y = 40;
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int z = 2;
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void PrintInfo(void) {
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kprintf("_tdata_size = %d\n", _tdata_size);
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kprintf("_tls_size = %d\n", _tls_size);
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kprintf("_tls_content = %d\n", _tls_content);
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kprintf("__data_start = %p\n", __data_start);
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kprintf("__data_end = %p\n", __data_end);
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kprintf("_tdata_start = %p\n", _tdata_start);
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kprintf("_tdata_end = %p\n", _tdata_end);
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kprintf("_tbss_start = %p\n", _tbss_start);
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kprintf("_tbss_end = %p\n", _tbss_end);
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kprintf("&y = %p\n", &y);
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kprintf("__bss_start = %p\n", __bss_start);
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kprintf("__bss_end = %p\n", __bss_end);
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}
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TEST(tls, test) {
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EXPECT_EQ(42, x + y + z);
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}
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