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Get codebase completely working with LLVM

Browse Source 
You can now build Cosmopolitan with Clang:

    make -j8 MODE=llvm
    o/llvm/examples/hello.com

The assembler and linker code is now friendly to LLVM too.
So it's not needed to configure Clang to use binutils under
the hood. If you love LLVM then you can now use pure LLVM.
This commit is contained in:
Justine Tunney
2021-02-08 09:19:00 -08:00
parent 0e36cb3ac4
commit e75ffde09e
4528 changed files with 7776 additions and 11640 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
third_party/zlib/crc32.c vendored
View File

@@ -5,6 +5,7 @@
│ Use of this source code is governed by the BSD-style licenses that can │
│ be found in the third_party/zlib/LICENSE file. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/bits/weaken.h"
#include "libc/dce.h"
#include "libc/nexgen32e/x86feature.h"
#include "libc/str/str.h"
@@ -18,20 +19,22 @@ Copyright 1995-2017 Jean-loup Gailly and Mark Adler\"");
asm(".include \"libc/disclaimer.inc\"");
void crc_reset(struct DeflateState *const s) {
if (X86_HAVE(PCLMUL)) {
crc_fold_init(s);
if (X86_HAVE(PCLMUL) && weaken(crc_fold_init)) {
weaken(crc_fold_init)(s);
return;
}
s->strm->adler = crc32(0L, Z_NULL, 0);
}
void crc_finalize(struct DeflateState *const s) {
if (X86_HAVE(PCLMUL)) s->strm->adler = crc_fold_512to32(s);
if (X86_HAVE(PCLMUL) && weaken(crc_fold_512to32)) {
s->strm->adler = weaken(crc_fold_512to32)(s);
}
}
void copy_with_crc(z_streamp strm, Bytef *dst, long size) {
if (X86_HAVE(PCLMUL)) {
crc_fold_copy(strm->state, dst, strm->next_in, size);
if (X86_HAVE(PCLMUL) && weaken(crc_fold_copy)) {
weaken(crc_fold_copy)(strm->state, dst, strm->next_in, size);
return;
}
memcpy(dst, strm->next_in, size);

4
third_party/zlib/crcfold.c vendored
View File

@@ -14,6 +14,8 @@
#include "third_party/zlib/deflate.h"
#include "third_party/zlib/internal.h"
#ifndef __llvm__
asm(".ident\t\"\\n\\n\
zlib » crc32 parallelized folding (zlib License)\\n\
Copyright 2013 Intel Corporation\\n\
@@ -477,3 +479,5 @@ unsigned crc_fold_512to32(struct DeflateState *const s) {
return ~crc;
CRC_SAVE(s); /* TODO(jart): wut? */
}
#endif /* __llvm__ */