cosmopolitan/libc/runtime/memtrack.internal.h
Justine Tunney 7061c79c22 Make fixes, improvements, and chibicc python bindings
- python now mixes audio 10x faster
- python octal notation is restored
- chibicc now builds code 3x faster
- chibicc now has help documentation
- chibicc can now generate basic python bindings
- linenoise now supports some paredit-like features

See #141
2021-10-08 08:41:57 -07:00

67 lines
2 KiB
C

#ifndef COSMOPOLITAN_LIBC_RUNTIME_MEMTRACK_H_
#define COSMOPOLITAN_LIBC_RUNTIME_MEMTRACK_H_
#include "libc/dce.h"
#include "libc/macros.internal.h"
#include "libc/nt/enum/version.h"
#include "libc/runtime/runtime.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
#define _kAutomapStart 0x0000100080000000 /* asan can't spread its poison */
#define _kAutomapSize 0x00000fff80000000 /* beyond the above mem address */
#define _kFixedmapStart 0x0000200000000000
/*
* TODO: Why can't we allocate addresses above 4GB on Windows 7 x64?
* https://github.com/jart/cosmopolitan/issues/19
*/
#define MEMTRACK_ADDRESS(NORMAL, WIN7) \
(!(IsWindows() && NtGetVersion() < kNtVersionWindows10) ? NORMAL : WIN7)
#define kAutomapStart MEMTRACK_ADDRESS(_kAutomapStart, 0x10000000)
#define kAutomapSize MEMTRACK_ADDRESS(_kAutomapSize, 0x40000000)
#define kFixedmapStart MEMTRACK_ADDRESS(_kFixedmapStart, 0x50000000)
struct MemoryInterval {
int x;
int y;
long h;
int prot;
int flags;
};
struct MemoryIntervals {
long i, n;
struct MemoryInterval *p;
struct MemoryInterval s[OPEN_MAX];
};
extern hidden struct MemoryIntervals _mmi;
bool AreMemoryIntervalsOk(const struct MemoryIntervals *) nosideeffect hidden;
void PrintMemoryIntervals(int, const struct MemoryIntervals *) hidden;
int TrackMemoryInterval(struct MemoryIntervals *, int, int, long, int,
int) hidden;
int ReleaseMemoryIntervals(struct MemoryIntervals *, int, int,
void (*)(struct MemoryIntervals *, int, int)) hidden;
void ReleaseMemoryNt(struct MemoryIntervals *, int, int) hidden;
int UntrackMemoryIntervals(void *, size_t) hidden;
static inline noasan unsigned FindMemoryInterval(
const struct MemoryIntervals *mm, int x) {
unsigned l, m, r;
l = 0;
r = mm->i;
while (l < r) {
m = (l + r) >> 1;
if (mm->p[m].y < x) {
l = m + 1;
} else {
r = m;
}
}
return l;
}
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_RUNTIME_MEMTRACK_H_ */