diff options
Diffstat (limited to 'include/features.h')
| -rw-r--r-- | include/features.h | 45 |
1 files changed, 41 insertions, 4 deletions
diff --git a/include/features.h b/include/features.h index 54f839662..22795e0b3 100644 --- a/include/features.h +++ b/include/features.h @@ -322,6 +322,10 @@ # include <gnu/stubs.h> #endif +/* No C++ */ +#define __BEGIN_DECLS +#define __END_DECLS + /* Load up the current set of uClibc supported features */ #define __need_uClibc_config_h #include <bits/uClibc_config.h> @@ -329,22 +333,55 @@ /* Some nice features only work properly with ELF */ #if defined _LIBC && defined HAVE_ELF -# define link_warning(symbol, msg) \ +# define weak_alias(name, aliasname) _weak_alias (name, aliasname) +# define link_warning(symbol, msg) \ asm (".section " ".gnu.warning." #symbol "\n\t.previous"); \ static const char __evoke_link_warning_##symbol[] \ __attribute__ ((section (".gnu.warning." #symbol "\n\t#"))) = msg; -# define weak_alias(name, aliasname) \ +# define _weak_alias(name, aliasname) \ + extern __typeof (name) aliasname __attribute__ ((weak, alias (#name))); +/* +# define _weak_alias(name, aliasname) \ asm(".global " C_SYMBOL_PREFIX #name ";" \ ".weak " C_SYMBOL_PREFIX #aliasname ";" \ C_SYMBOL_PREFIX #aliasname "=" C_SYMBOL_PREFIX #name ";"); +*/ # define weak_symbol(name) \ asm(".weak " C_SYMBOL_PREFIX #name ";"); #else -# define link_warning(symbol, msg) \ +# define weak_alias(name, aliasname) _weak_alias (name, aliasname) +# define link_warning(symbol, msg) \ asm (".stabs \"" msg "\",30,0,0,0\n\t" \ ".stabs \"" #symbol "\",1,0,0,0\n"); -# define weak_alias(name, aliasname) \ +# define _weak_alias(name, aliasname) \ __asm__(".global _" #aliasname "\n.set _" #aliasname ",_" #name); #endif +/* --- this is added to integrate linuxthreads */ + +#define __USE_UNIX98 1 + + +#ifndef weak_function +/* If we do not have the __attribute__ ((weak)) syntax, there is no way we + can define functions as weak symbols. The compiler will emit a `.globl' + directive for the function symbol, and a `.weak' directive in addition + will produce an error from the assembler. */ +# define weak_function /* empty */ +# define weak_const_function /* empty */ +#endif + +/* On some platforms we can make internal function calls (i.e., calls of + functions not exported) a bit faster by using a different calling + convention. */ +#ifndef internal_function +# define internal_function /* empty */ +#endif + +/* Prepare for the case that `__builtin_expect' is not available. */ +#ifndef HAVE_BUILTIN_EXPECT +# define __builtin_expect(expr, val) (expr) +#endif + + #endif /* features.h */ |