mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-03-04 07:58:21 +00:00
8f522cb702
This change progresses our AARCH64 support:
- The AARCH64 build and tests are now passing
- Add 128-bit floating-point support to printf()
- Fix clone() so it initializes cosmo's x28 TLS register
- Fix TLS memory layout issue with aarch64 _Alignas vars
- Revamp microbenchmarking tools so they work on aarch64
- Make some subtle improvements to aarch64 crash reporting
- Make kisdangerous() memory checks more accurate on aarch64
- Remove sys_open() since it's not available on Linux AARCH64
This change makes general improvements to Cosmo and Redbean:
- Introduce GetHostIsa() function in Redbean
- You can now feature check using pledge(0, 0)
- You can now feature check using unveil("",0)
- Refactor some more x86-specific asm comments
- Refactor and write docs for some libm functions
- Make the mmap() API behave more similar to Linux
- Fix WIFSIGNALED() which wrongly returned true for zero
- Rename some obscure cosmo keywords from noFOO to dontFOO
108 lines
3.9 KiB
C
108 lines
3.9 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 2020 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 "tool/build/lib/bitscan.h"
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#include "libc/macros.internal.h"
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#include "libc/testlib/testlib.h"
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#include "test/tool/build/lib/numbers.h"
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#include "tool/build/lib/flags.h"
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#ifdef __x86_64__
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#define OSZ 00000000040
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#define REXW 00000000100
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struct Machine m[1];
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struct XedDecodedInst xedd[1];
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void SetUp(void) {
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m->xedd = xedd;
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}
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TEST(bsr64, test) {
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bool zf;
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uint64_t i, w, x, a, b;
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for (i = 0; i < ARRAYLEN(kNumbers); ++i) {
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x = kNumbers[i];
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a = AluBsr(m, REXW, x);
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asm("bsrq\t%2,%0" : "=r"(b), "=@ccz"(zf) : "r"(x));
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ASSERT_EQ(zf, GetFlag(m->flags, FLAGS_ZF));
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if (!zf) ASSERT_EQ(a, b);
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}
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}
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TEST(bsr32, test) {
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bool zf;
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uint32_t i, w, x, a, b;
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for (i = 0; i < ARRAYLEN(kNumbers); ++i) {
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x = kNumbers[i];
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a = AluBsr(m, 0, x);
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asm("bsrl\t%2,%0" : "=r"(b), "=@ccz"(zf) : "r"(x));
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ASSERT_EQ(zf, GetFlag(m->flags, FLAGS_ZF));
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if (!zf) ASSERT_EQ(a, b);
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}
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}
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TEST(bsr16, test) {
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bool zf;
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uint16_t i, w, x, a, b;
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for (i = 0; i < ARRAYLEN(kNumbers); ++i) {
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x = kNumbers[i];
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a = AluBsr(m, OSZ, x);
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asm("bsrw\t%2,%0" : "=r"(b), "=@ccz"(zf) : "r"(x));
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ASSERT_EQ(zf, GetFlag(m->flags, FLAGS_ZF));
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if (!zf) ASSERT_EQ(a, b);
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}
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}
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TEST(bsf64, test) {
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bool zf;
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uint64_t i, w, x, a, b;
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for (i = 0; i < ARRAYLEN(kNumbers); ++i) {
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x = kNumbers[i];
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a = AluBsf(m, REXW, x);
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asm("bsfq\t%2,%0" : "=r"(b), "=@ccz"(zf) : "r"(x));
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ASSERT_EQ(zf, GetFlag(m->flags, FLAGS_ZF));
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if (!zf) ASSERT_EQ(a, b);
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}
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}
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TEST(bsf32, test) {
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bool zf;
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uint32_t i, w, x, a, b;
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for (i = 0; i < ARRAYLEN(kNumbers); ++i) {
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x = kNumbers[i];
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a = AluBsf(m, 0, x);
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asm("bsfl\t%2,%0" : "=r"(b), "=@ccz"(zf) : "r"(x));
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ASSERT_EQ(zf, GetFlag(m->flags, FLAGS_ZF));
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if (!zf) ASSERT_EQ(a, b);
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}
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}
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TEST(bsf16, test) {
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bool zf;
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uint16_t i, w, x, a, b;
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for (i = 0; i < ARRAYLEN(kNumbers); ++i) {
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x = kNumbers[i];
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a = AluBsf(m, OSZ, x);
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asm("bsfw\t%2,%0" : "=r"(b), "=@ccz"(zf) : "r"(x));
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ASSERT_EQ(zf, GetFlag(m->flags, FLAGS_ZF));
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if (!zf) ASSERT_EQ(a, b, "%#lx", x);
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}
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}
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#endif /* __x86_64__ */
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