mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-07-25 12:00:31 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Get aarch64 hello world working

Browse source 
$ m=aarch64-tiny
    $ make -j8 m=$m o/$m/tool/hello/hello.com o/third_party/qemu/qemu-aarch64
    $ o/third_party/qemu/qemu-aarch64 o/$m/tool/hello/hello.com
    hello world
    $ ls -hal o/$m/tool/hello/hello.com
    -rwxr-xr-x 1 jart jart 4.0K May  9 05:04 o/aarch64-tiny/tool/hello/hello.com
This commit is contained in:
Justine Tunney 2023-05-09 02:35:05 -07:00
parent e5e3cdf447
commit ae0ee59614
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
174 changed files with 1454 additions and 851 deletions
Download patch file Download diff file Expand all files Collapse all files

29
libc/intrin/weaken.h
View file

@ -1,33 +1,12 @@
#ifndef COSMOPOLITAN_LIBC_BITS_WEAKEN_H_
#define COSMOPOLITAN_LIBC_BITS_WEAKEN_H_
#include "libc/intrin/ezlea.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
#ifndef __STRICT_ANSI__
#define _weaken(symbol) \
({ \
typeof(&symbol) _p = &symbol; \
asm(".weak\t" #symbol : "+r"(_p)); \
_p; \
#define _weaken(symbol) \
__extension__({ \
extern __typeof__(symbol) symbol __attribute__((__weak__)); \
&symbol; \
})
#define _strongaddr(symbolstr) \
({ \
intptr_t waddr; \
asm(_ezlea(symbolstr) "0" : "=r"(waddr)); \
waddr; \
})
#define _weakaddr(symbolstr) \
({ \
intptr_t waddr; \
asm(".weak\t" symbolstr "\n\t" _ezlea(symbolstr) "0" : "=r"(waddr)); \
waddr; \
})
#else
#define _weaken(symbol) symbol
#define _weakaddr(symbolstr) &(symbolstr)
#endif /* __STRICT_ANSI__ */
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_BITS_WEAKEN_H_ */