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Rewrite brk() and sbrk()

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This change reduces the .bss memory requirement for all executables by
O(64kb). The brk system calls are now fully tested and figured out and
might be useful for tiny programs that only target System Five.
This commit is contained in:
Justine Tunney 2022-10-01 23:11:56 -07:00
parent bc8532688b
commit 5005f2e446
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GPG key ID: BE714B4575D6E328
23 changed files with 643 additions and 294 deletions
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3
libc/nt/struct/imagesectionheader.internal.h
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@ -1,10 +1,9 @@
#ifndef COSMOPOLITAN_LIBC_NT_STRUCT_IMAGESECTIONHEADER_H_
#define COSMOPOLITAN_LIBC_NT_STRUCT_IMAGESECTIONHEADER_H_
#include "libc/nt/pedef.internal.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
struct NtImageSectionHeader {
uint8_t Name[kNtImageSizeofShortName];
uint8_t Name[8];
union {
uint32_t PhysicalAddress;
uint32_t VirtualSize;