mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 11:37:35 +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
49 lines
2 KiB
C
49 lines
2 KiB
C
#ifndef COSMOPOLITAN_LIBC_BENCH_H_
|
|
#define COSMOPOLITAN_LIBC_BENCH_H_
|
|
#include "libc/nexgen32e/bench.h"
|
|
#if !(__ASSEMBLER__ + __LINKER__ + 0)
|
|
COSMOPOLITAN_C_START_
|
|
|
|
/**
|
|
* @fileoverview Microbenchmarking Toolz.
|
|
*/
|
|
|
|
#define BENCHLOOPER(START, STOP, N, EXPR) \
|
|
({ \
|
|
long Iter = 1; \
|
|
long Toto = (N); \
|
|
uint64_t Time1 = START(); \
|
|
asm volatile("" ::: "memory"); \
|
|
for (; Iter < Toto; ++Iter) { \
|
|
asm volatile("" ::: "memory"); \
|
|
EXPR; \
|
|
asm volatile("" ::: "memory"); \
|
|
} \
|
|
asm volatile("" ::: "memory"); \
|
|
uint64_t Time2 = STOP(); \
|
|
(double)(long)(Time2 - Time1) / Iter; \
|
|
})
|
|
|
|
#ifndef BENCHLOOP
|
|
/* TODO(jart): DELETE */
|
|
#define BENCHLOOP(START, STOP, N, INIT, EXPR) \
|
|
({ \
|
|
double Average; \
|
|
uint64_t Time1, Time2; \
|
|
unsigned long Iter, Count; \
|
|
for (Average = 1, Iter = 1, Count = (N); Iter < Count; ++Iter) { \
|
|
INIT; \
|
|
Time1 = START(); \
|
|
asm volatile("" ::: "memory"); \
|
|
EXPR; \
|
|
asm volatile("" ::: "memory"); \
|
|
Time2 = STOP(); \
|
|
Average += 1. / Iter * ((int)(Time2 - Time1) - Average); \
|
|
} \
|
|
Average; \
|
|
})
|
|
#endif /* BENCHLOOP */
|
|
|
|
COSMOPOLITAN_C_END_
|
|
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
|
|
#endif /* COSMOPOLITAN_LIBC_BENCH_H_ */
|