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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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24
libc/nexgen32e/gc.S
View File

@ -21,17 +21,17 @@
#include "libc/notice.inc"
#define INITIAL_CAPACITY 4
/ Invokes deferred function calls.
/
/ This offers behavior similar to std::unique_ptr. Functions
/ overwrite their return addresses jumping here, and pushing
/ exactly one entry on the shadow stack below. Functions may
/ repeat that process multiple times, in which case the body
/ of this gadget loops and unwinds as a natural consequence.
/
/ @param rax,rdx,xmm0,xmm1,st0,st1 is return value
/ @see test/libc/runtime/gc_test.c
/ <LIMBO>
// Invokes deferred function calls.
//
// This offers behavior similar to std::unique_ptr. Functions
// overwrite their return addresses jumping here, and pushing
// exactly one entry on the shadow stack below. Functions may
// repeat that process multiple times, in which case the body
// of this gadget loops and unwinds as a natural consequence.
//
// @param rax,rdx,xmm0,xmm1,st0,st1 is return value
// @see test/libc/runtime/gc_test.c
// <LIMBO>
__gc: decq __garbage(%rip)
mov __garbage(%rip),%r8
mov __garbage+16(%rip),%r9
@ -41,7 +41,7 @@ __gc: decq __garbage(%rip)
mov 8(%r8),%r9
mov 16(%r8),%rdi
push 24(%r8)
/ </LIMBO>
// </LIMBO>
push %rbp
mov %rsp,%rbp
sub $0x20,%rsp