cosmopolitan/libc/runtime/directmap.internal.h

#ifndef COSMOPOLITAN_LIBC_RUNTIME_DIRECTMAP_H_
#define COSMOPOLITAN_LIBC_RUNTIME_DIRECTMAP_H_
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_

struct DirectMap {
  void *addr;
  int64_t maphandle;
};

struct DirectMap sys_mmap(void *, size_t, int, int, int, int64_t);
struct DirectMap sys_mmap_nt(void *, size_t, int, int, int64_t, int64_t);
struct DirectMap sys_mmap_metal(void *, size_t, int, int, int, int64_t);
int sys_munmap_metal(void *, size_t);

COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_RUNTIME_DIRECTMAP_H_ */
Get address sanitizer mostly working 2020-09-03 12:44:37 +00:00			`#ifndef COSMOPOLITAN_LIBC_RUNTIME_DIRECTMAP_H_`
			`#define COSMOPOLITAN_LIBC_RUNTIME_DIRECTMAP_H_`
			`#if !(__ASSEMBLER__ + __LINKER__ + 0)`
			`COSMOPOLITAN_C_START_`

			`struct DirectMap {`
			`void *addr;`
			`int64_t maphandle;`
			`};`

Support malloc() on bare metal Your Actually Portable Executables now contains a simple virtual memory that works similarly to the Linux Kernel in the sense that it maps your physical memory to negative addresses. This is needed to support mmap() and malloc(). This functionality has zero code size impact. For example the MODE=tiny LIFE.COM executable is still only 12KB in size. The APE bootloader code has also been simplified to improve readibility and further elevate the elegance by which we're able to support so many platforms thereby enhancing verifiability so that we may engender trust in this bootloading process. 2021-02-24 04:23:19 +00:00			`struct DirectMap sys_mmap(void *, size_t, int, int, int, int64_t);`
Write more memory mapping tests Microsoft claims to support COW but it's probably not true. 2021-02-05 02:24:33 +00:00			`struct DirectMap sys_mmap_nt(void *, size_t, int, int, int64_t, int64_t);`
Support malloc() on bare metal Your Actually Portable Executables now contains a simple virtual memory that works similarly to the Linux Kernel in the sense that it maps your physical memory to negative addresses. This is needed to support mmap() and malloc(). This functionality has zero code size impact. For example the MODE=tiny LIFE.COM executable is still only 12KB in size. The APE bootloader code has also been simplified to improve readibility and further elevate the elegance by which we're able to support so many platforms thereby enhancing verifiability so that we may engender trust in this bootloading process. 2021-02-24 04:23:19 +00:00			`struct DirectMap sys_mmap_metal(void *, size_t, int, int, int, int64_t);`
			`int sys_munmap_metal(void *, size_t);`
Get address sanitizer mostly working 2020-09-03 12:44:37 +00:00
			`COSMOPOLITAN_C_END_`
			`#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */`
			`#endif /* COSMOPOLITAN_LIBC_RUNTIME_DIRECTMAP_H_ */`