cosmopolitan/libc/intrin/weaken.h

#ifndef COSMOPOLITAN_LIBC_BITS_WEAKEN_H_
#define COSMOPOLITAN_LIBC_BITS_WEAKEN_H_
#if !(__ASSEMBLER__ + __LINKER__ + 0)

#ifndef __chibicc__
#define _weaken(symbol)                                         \
  __extension__({                                               \
    extern __typeof__(symbol) symbol __attribute__((__weak__)); \
    &symbol;                                                    \
  })
#else
#define _weaken(symbol) (&(symbol))
#endif

#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_BITS_WEAKEN_H_ */
Fold LIBC_BITS into LIBC_INTRIN 2022-08-11 19:13:18 +00:00			`#ifndef COSMOPOLITAN_LIBC_BITS_WEAKEN_H_`
			`#define COSMOPOLITAN_LIBC_BITS_WEAKEN_H_`
			`#if !(__ASSEMBLER__ + __LINKER__ + 0)`

Restore missing cosmopolitan documentation on website 2023-07-30 18:05:05 +00:00			`#ifndef __chibicc__`
Get aarch64 hello world working $ 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 2023-05-09 09:35:05 +00:00			`#define _weaken(symbol) \`
			`__extension__({ \`
			`extern __typeof__(symbol) symbol __attribute__((__weak__)); \`
			`&symbol; \`
Do some basic build tuning 2023-05-01 21:36:25 +00:00			`})`
Restore missing cosmopolitan documentation on website 2023-07-30 18:05:05 +00:00			`#else`
			`#define _weaken(symbol) (&(symbol))`
			`#endif`
Fold LIBC_BITS into LIBC_INTRIN 2022-08-11 19:13:18 +00:00
			`#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */`
			`#endif /* COSMOPOLITAN_LIBC_BITS_WEAKEN_H_ */`