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Fix build determinism issue

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Justine Tunney 2024-07-27 19:03:32 -07:00
parent 81dd9639ed
commit 32292aee84
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GPG key ID: BE714B4575D6E328
1 changed files with 16 additions and 10 deletions
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26
tool/build/lib/elfwriter_zip.c
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@ -63,6 +63,13 @@ static int DetermineVersionNeededToExtract(int method) {
}
}
static int NormalizeMode(int mode) {
int res = mode & S_IFMT;
if (mode & 0111)
res |= 0111;
return res | 0644;
}
static unsigned char *EmitZipLfileHdr(unsigned char *p, const void *name,
size_t namesize, uint32_t crc,
uint8_t era, uint16_t gflags,
@ -87,10 +94,10 @@ static unsigned char *EmitZipLfileHdr(unsigned char *p, const void *name,
static void EmitZipCdirHdr(unsigned char *p, const void *name, size_t namesize,
uint32_t crc, uint8_t era, uint16_t gflags,
uint16_t method, uint16_t mtime, uint16_t mdate,
uint16_t iattrs, uint16_t dosmode, uint16_t unixmode,
size_t compsize, size_t uncompsize,
size_t commentsize, struct timespec mtim,
struct timespec atim, struct timespec ctim) {
uint16_t iattrs, uint16_t unixmode, size_t compsize,
size_t uncompsize, size_t commentsize,
struct timespec mtim, struct timespec atim,
struct timespec ctim) {
uint64_t mt, at, ct;
p = WRITE32LE(p, kZipCfileHdrMagic);
*p++ = kZipCosmopolitanVersion;
@ -111,8 +118,8 @@ static void EmitZipCdirHdr(unsigned char *p, const void *name, size_t namesize,
p = WRITE16LE(p, commentsize);
p = WRITE16LE(p, 0); /* disk */
p = WRITE16LE(p, iattrs);
p = WRITE16LE(p, dosmode);
p = WRITE16LE(p, unixmode);
p = WRITE16LE(p, 0);
p = WRITE16LE(p, NormalizeMode(unixmode));
p = WRITE32LE(p, 0); /* RELOCATE ME (kZipCfileOffsetOffset) */
/* 46 */
memcpy(p, name, namesize);
@ -142,8 +149,8 @@ void elfwriter_zip(struct ElfWriter *elf, const char *symbol, const char *cname,
uint32_t crc;
unsigned char *lfile, *cfile;
struct ElfWriterSymRef lfilesym;
uint16_t method, gflags, mtime, mdate, iattrs;
size_t lfilehdrsize, uncompsize, compsize, commentsize;
uint16_t method, gflags, mtime, mdate, iattrs, dosmode;
CHECK_NE(0, mtim.tv_sec);
@ -168,7 +175,6 @@ void elfwriter_zip(struct ElfWriter *elf, const char *symbol, const char *cname,
if (S_ISREG(mode) && istext(data, size)) {
iattrs |= kZipIattrText;
}
dosmode = !(mode & 0200) ? kNtFileAttributeReadonly : 0;
method = ShouldCompress(name, namesize, data, size, nocompress)
? kZipCompressionDeflate
: kZipCompressionNone;
@ -215,8 +221,8 @@ void elfwriter_zip(struct ElfWriter *elf, const char *symbol, const char *cname,
elfwriter_startsection(elf, ".zip.cdir", SHT_PROGBITS, 0);
EmitZipCdirHdr(
(cfile = elfwriter_reserve(elf, ZIP_CFILE_HDR_SIZE + namesize)), name,
namesize, crc, era, gflags, method, mtime, mdate, iattrs, dosmode, mode,
compsize, uncompsize, commentsize, mtim, atim, ctim);
namesize, crc, era, gflags, method, mtime, mdate, iattrs, mode, compsize,
uncompsize, commentsize, mtim, atim, ctim);
elfwriter_appendsym(elf, gc(xasprintf("%s%s", "zip+cdir:", name)),
ELF64_ST_INFO(STB_LOCAL, STT_OBJECT), STV_DEFAULT, 0,
ZIP_CFILE_HDR_SIZE + namesize);