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Add tool for viewing memory

Browse source 
https://justine.storage.googleapis.com/memzoom/index.html
This commit is contained in:
Justine Tunney 2020-11-06 20:02:53 -08:00
parent 2d80bbc802
commit 9fe95ef12b
22 changed files with 1511 additions and 1028 deletions
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2
tool/build/lib/elfwriter.c
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@ -28,6 +28,7 @@
#include "libc/runtime/runtime.h"
#include "libc/sysv/consts/map.h"
#include "libc/sysv/consts/mremap.h"
#include "libc/sysv/consts/msync.h"
#include "libc/sysv/consts/o.h"
#include "libc/sysv/consts/ok.h"
#include "libc/sysv/consts/prot.h"
@ -177,6 +178,7 @@ struct ElfWriter *elfwriter_open(const char *path, int mode) {
void elfwriter_close(struct ElfWriter *elf) {
size_t i;
FlushTables(elf);
CHECK_NE(-1, msync(elf->map, elf->wrote, MS_SYNC));
CHECK_NE(-1, munmap(elf->map, elf->mapsize));
CHECK_NE(-1, ftruncate(elf->fd, elf->wrote));
CHECK_NE(-1, close(elf->fd));