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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
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22
libc/calls/getntsyspath.S
View file

@ -19,13 +19,13 @@
#include "libc/macros.h"
.source __FILE__
/ Obtains WIN32 magic path, e.g. GetTempPathA.
/
/ @param rax is address of ANSI path provider function
/ @param rdi is output buffer
/ @param rdx is output buffer size in bytes that's >0
/ @return eax is string length w/ NUL that's ≤ edx
/ @return rdi is rdi+edx
// Obtains WIN32 magic path, e.g. GetTempPathA.
//
// @param rax is address of ANSI path provider function
// @param rdi is output buffer
// @param rdx is output buffer size in bytes that's >0
// @return eax is string length w/ NUL that's ≤ edx
// @return rdi is rdi+edx
.text.startup
__getntsyspath:
push %rbp
@ -40,14 +40,14 @@ __getntsyspath:
cmovbe %edx,%eax
cmp $1,%eax # leave empty strings empty
jbe 1f
cmpb $'\\,-1(%rdi,%rax) # guarantee trailing slash
cmpb $'\\',-1(%rdi,%rax) # guarantee trailing slash
je 1f
movw $'\\,(%rdi,%rax)
movw $'\\',(%rdi,%rax)
inc %eax
1: inc %rdi # change backslash to slash
cmpb $'\\,-1(%rdi)
cmpb $'\\',-1(%rdi)
jne 2f
movb $'/,-1(%rdi)
movb $'/',-1(%rdi)
2: .loop 1b
leave
ret