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Get life.com in MODE=tiny back down to 12kb

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This commit is contained in:
Justine Tunney 2022-03-23 08:09:01 -07:00
parent 23b72eb617
commit b90fa996b4
14 changed files with 199 additions and 72 deletions
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36
libc/runtime/fork-nt.c
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@ -160,19 +160,16 @@ textwindows void WinMainForked(void) {
ReadAll(reader, &mapcount, sizeof(_mmi.i));
ReadAll(reader, &mapcapacity, sizeof(_mmi.n));
specialz = ROUNDUP(mapcapacity * sizeof(_mmi.p[0]), kMemtrackGran);
MapViewOfFileExNuma(CreateFileMappingNuma(
-1, &kNtIsInheritable, kNtPageReadwrite,
specialz >> 32, specialz, 0, kNtNumaNoPreferredNode),
kNtFileMapWrite, 0, 0, specialz, maps,
kNtNumaNoPreferredNode);
MapViewOfFileEx(CreateFileMapping(-1, &kNtIsInheritable, kNtPageReadwrite,
specialz >> 32, specialz, 0),
kNtFileMapWrite, 0, 0, specialz, maps);
ReadAll(reader, maps, mapcount * sizeof(_mmi.p[0]));
if (IsAsan()) {
shad = (char *)(((intptr_t)maps >> 3) + 0x7fff8000);
size = ROUNDUP(specialz >> 3, FRAMESIZE);
MapViewOfFileExNuma(
CreateFileMappingNuma(-1, &kNtIsInheritable, kNtPageReadwrite,
size >> 32, size, 0, kNtNumaNoPreferredNode),
kNtFileMapWrite, 0, 0, size, maps, kNtNumaNoPreferredNode);
MapViewOfFileEx(CreateFileMapping(-1, &kNtIsInheritable, kNtPageReadwrite,
size >> 32, size, 0),
kNtFileMapWrite, 0, 0, size, maps);
#if 0
ReadAll(reader, shad, (mapcount * sizeof(_mmi.p[0])) >> 3);
#endif
@ -191,21 +188,20 @@ textwindows void WinMainForked(void) {
STRACE("fork() child CloseHandle(%ld) ~~~FAILED~~~ %m", maps[i].h);
}
upsize = ROUNDUP(size, FRAMESIZE);
maps[i].h = CreateFileMappingNuma(-1, &kNtIsInheritable,
kNtPageExecuteReadwrite, upsize >> 32,
upsize, NULL, kNtNumaNoPreferredNode);
MapViewOfFileExNuma(maps[i].h, kNtFileMapWrite | kNtFileMapExecute, 0, 0,
upsize, addr, kNtNumaNoPreferredNode);
maps[i].h =
CreateFileMapping(-1, &kNtIsInheritable, kNtPageExecuteReadwrite,
upsize >> 32, upsize, NULL);
MapViewOfFileEx(maps[i].h, kNtFileMapWrite | kNtFileMapExecute, 0, 0,
upsize, addr);
ReadAll(reader, addr, size);
} else {
STRACE("fork() child %p %'zu mapping shared hand:%ld offset:%'lu", addr,
size, maps[i].h, maps[i].offset);
MapViewOfFileExNuma(maps[i].h,
(maps[i].prot & PROT_WRITE)
? kNtFileMapWrite | kNtFileMapExecute
: kNtFileMapRead | kNtFileMapExecute,
maps[i].offset >> 32, maps[i].offset, size, addr,
kNtNumaNoPreferredNode);
MapViewOfFileEx(maps[i].h,
(maps[i].prot & PROT_WRITE)
? kNtFileMapWrite | kNtFileMapExecute
: kNtFileMapRead | kNtFileMapExecute,
maps[i].offset >> 32, maps[i].offset, size, addr);
}
}