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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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26
libc/sysv/syscall.S
View File

@ -19,19 +19,19 @@
#include "libc/macros.h"
.source __FILE__
/ Performs raw System Five system call.
/
/ This function provides a direct path into system call support
/ that's friendly to C code, since it doesn't need an intermediate
/ thunk. It only supports arities up to six, since there's no way
/ to do more safely; this isn't a problem with Linux, although
/ certain BSD calls may not be available.
/
/ @param %rdi is system call ordinal, which isn't translated,
/ and must be correct for the underlying host system
/ @param %rsi,%rdx,%rcx,%r8,%r9 may supply parameters 1 through 5
/ @param sixth is optionally pushed on the stack before call
/ @return %rax has result, or -1 w/ errno on failure
// Performs raw System Five system call.
//
// This function provides a direct path into system call support
// that's friendly to C code, since it doesn't need an intermediate
// thunk. It only supports arities up to six, since there's no way
// to do more safely; this isn't a problem with Linux, although
// certain BSD calls may not be available.
//
// @param %rdi is system call ordinal, which isn't translated,
// and must be correct for the underlying host system
// @param %rsi,%rdx,%rcx,%r8,%r9 may supply parameters 1 through 5
// @param sixth is optionally pushed on the stack before call
// @return %rax has result, or -1 w/ errno on failure
syscall:mov %rdi,%rax
mov %rsi,%rdi
mov %rdx,%rsi