mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-01 03:53:33 +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
62 lines
3.3 KiB
C
62 lines
3.3 KiB
C
/*-*- 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 2021 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/calls.h"
|
|
#include "libc/calls/internal.h"
|
|
#include "libc/calls/struct/iovec.h"
|
|
#include "libc/calls/struct/iovec.internal.h"
|
|
#include "libc/calls/syscall-sysv.internal.h"
|
|
#include "libc/dce.h"
|
|
#include "libc/sock/internal.h"
|
|
#include "libc/sysv/consts/nr.h"
|
|
#include "libc/sysv/consts/o.h"
|
|
#include "libc/testlib/ezbench.h"
|
|
#include "libc/testlib/testlib.h"
|
|
|
|
char testlib_enable_tmp_setup_teardown;
|
|
|
|
TEST(read, eof) {
|
|
char b[8] = "hello";
|
|
ASSERT_SYS(0, 3, creat("foo", 0644));
|
|
ASSERT_SYS(0, 4, open("foo", O_RDONLY));
|
|
ASSERT_SYS(0, 0, read(4, b, 8));
|
|
ASSERT_SYS(0, 8, write(3, b, 8));
|
|
ASSERT_SYS(0, 8, read(4, b, 8));
|
|
ASSERT_SYS(0, 0, read(4, b, 8));
|
|
ASSERT_SYS(0, 0, close(4));
|
|
ASSERT_SYS(0, 0, close(3));
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
BENCH(read, bench) {
|
|
char buf[16];
|
|
ASSERT_SYS(0, 3, open("/dev/zero", O_RDONLY));
|
|
EZBENCH2("read", donothing, read(3, buf, 5));
|
|
EZBENCH2("pread", donothing, pread(3, buf, 5, 0));
|
|
EZBENCH2("readv₁", donothing, readv(3, &(struct iovec){buf, 5}, 1));
|
|
EZBENCH2("readv₂", donothing,
|
|
readv(3, (struct iovec[]){{buf, 1}, {buf + 1, 4}}, 2));
|
|
EZBENCH2("preadv₁", donothing, preadv(3, &(struct iovec){buf, 5}, 1, 0));
|
|
EZBENCH2("preadv₂", donothing,
|
|
preadv(3, (struct iovec[]){{buf, 1}, {buf + 1, 4}}, 2, 0));
|
|
EZBENCH2("sys_read", donothing, sys_read(3, buf, 5));
|
|
EZBENCH2("sys_readv", donothing, sys_readv(3, &(struct iovec){buf, 5}, 1));
|
|
ASSERT_SYS(0, 0, close(3));
|
|
}
|