diff options
Diffstat (limited to 'libunwind/src/assembly.h')
| -rw-r--r-- | libunwind/src/assembly.h | 46 |
1 files changed, 33 insertions, 13 deletions
diff --git a/libunwind/src/assembly.h b/libunwind/src/assembly.h index a15b89ff66d..606cf2c92b3 100644 --- a/libunwind/src/assembly.h +++ b/libunwind/src/assembly.h @@ -45,6 +45,11 @@ #define SYMBOL_IS_FUNC(name) #define EXPORT_SYMBOL(name) #define HIDDEN_SYMBOL(name) .private_extern name +#define WEAK_SYMBOL(name) .weak_reference name +#define WEAK_ALIAS(name, aliasname) \ + WEAK_SYMBOL(aliasname) SEPARATOR \ + SYMBOL_NAME(aliasname) = SYMBOL_NAME(name) + #define NO_EXEC_STACK_DIRECTIVE #elif defined(__ELF__) @@ -56,6 +61,10 @@ #endif #define EXPORT_SYMBOL(name) #define HIDDEN_SYMBOL(name) .hidden name +#define WEAK_SYMBOL(name) .weak name +#define WEAK_ALIAS(name, aliasname) \ + WEAK_SYMBOL(aliasname) SEPARATOR \ + SYMBOL_NAME(aliasname) = SYMBOL_NAME(name) #if defined(__GNU__) || defined(__FreeBSD__) || defined(__Fuchsia__) || \ defined(__linux__) @@ -71,9 +80,9 @@ .scl 2 SEPARATOR \ .type 32 SEPARATOR \ .endef -#define EXPORT_SYMBOL2(name) \ - .section .drectve,"yn" SEPARATOR \ - .ascii "-export:", #name, "\0" SEPARATOR \ +#define EXPORT_SYMBOL2(name) \ + .section .drectve,"yn" SEPARATOR \ + .ascii "-export:", #name, "\0" SEPARATOR \ .text #if defined(_LIBUNWIND_DISABLE_VISIBILITY_ANNOTATIONS) #define EXPORT_SYMBOL(name) @@ -82,6 +91,23 @@ #endif #define HIDDEN_SYMBOL(name) +#if defined(__MINGW32__) +#define WEAK_ALIAS(name, aliasname) \ + .globl SYMBOL_NAME(aliasname) SEPARATOR \ + EXPORT_SYMBOL(aliasname) SEPARATOR \ + SYMBOL_NAME(aliasname) = SYMBOL_NAME(name) +#else +#define WEAK_ALIAS3(name, aliasname) \ + .section .drectve,"yn" SEPARATOR \ + .ascii "-alternatename:", #aliasname, "=", #name, "\0" SEPARATOR \ + .text +#define WEAK_ALIAS2(name, aliasname) \ + WEAK_ALIAS3(name, aliasname) +#define WEAK_ALIAS(name, aliasname) \ + EXPORT_SYMBOL(SYMBOL_NAME(aliasname)) SEPARATOR \ + WEAK_ALIAS2(SYMBOL_NAME(name), SYMBOL_NAME(aliasname)) +#endif + #define NO_EXEC_STACK_DIRECTIVE #elif defined(__sparc__) @@ -92,16 +118,10 @@ #endif -#define DEFINE_LIBUNWIND_FUNCTION(name) \ - .globl SYMBOL_NAME(name) SEPARATOR \ - EXPORT_SYMBOL(name) SEPARATOR \ - SYMBOL_IS_FUNC(SYMBOL_NAME(name)) SEPARATOR \ - SYMBOL_NAME(name): - -#define DEFINE_LIBUNWIND_PRIVATE_FUNCTION(name) \ - .globl SYMBOL_NAME(name) SEPARATOR \ - HIDDEN_SYMBOL(SYMBOL_NAME(name)) SEPARATOR \ - SYMBOL_IS_FUNC(SYMBOL_NAME(name)) SEPARATOR \ +#define DEFINE_LIBUNWIND_FUNCTION(name) \ + .globl SYMBOL_NAME(name) SEPARATOR \ + HIDDEN_SYMBOL(SYMBOL_NAME(name)) SEPARATOR \ + SYMBOL_IS_FUNC(SYMBOL_NAME(name)) SEPARATOR \ SYMBOL_NAME(name): #if defined(__arm__) |
