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[compiler-rt] Simplify ALIAS() attribute macro

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Most uses of ALIAS() are in conjunction with WRAPPER_NAME().

Simplify the code and just make ALIAS() turn its argument into a string
(similar to Linux kernel's __alias macro). This in turn allows removing
WRAPPER_NAME().

NFC.

Reviewed By: dvyukov

Differential Revision: https://reviews.llvm.org/D151216
This commit is contained in:
Marco Elver
2023-05-24 11:31:40 +02:00
parent 5568ce0580
commit 175fcd6fd2
11 changed files with 25 additions and 29 deletions
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4
compiler-rt/lib/interception/interception.h
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@@ -118,13 +118,11 @@ const interpose_substitution substitution_##func_name[] \
}
# define WRAP(x) wrap_##x
# define WRAPPER_NAME(x) "wrap_"#x
# define INTERCEPTOR_ATTRIBUTE
# define DECLARE_WRAPPER(ret_type, func, ...)
#elif SANITIZER_WINDOWS
# define WRAP(x) __asan_wrap_##x
# define WRAPPER_NAME(x) "__asan_wrap_"#x
# define INTERCEPTOR_ATTRIBUTE __declspec(dllexport)
# define DECLARE_WRAPPER(ret_type, func, ...) \
extern "C" ret_type func(__VA_ARGS__);
@@ -132,7 +130,6 @@ const interpose_substitution substitution_##func_name[] \
extern "C" __declspec(dllimport) ret_type __stdcall func(__VA_ARGS__);
#elif SANITIZER_FREEBSD || SANITIZER_NETBSD
# define WRAP(x) __interceptor_ ## x
# define WRAPPER_NAME(x) "__interceptor_" #x
# define INTERCEPTOR_ATTRIBUTE __attribute__((visibility("default")))
// FreeBSD's dynamic linker (incompliantly) gives non-weak symbols higher
// priority than weak ones so weak aliases won't work for indirect calls
@@ -142,7 +139,6 @@ const interpose_substitution substitution_##func_name[] \
__attribute__((alias("__interceptor_" #func), visibility("default")));
#elif !SANITIZER_FUCHSIA
# define WRAP(x) __interceptor_ ## x
# define WRAPPER_NAME(x) "__interceptor_" #x
# define INTERCEPTOR_ATTRIBUTE __attribute__((visibility("default")))
# define DECLARE_WRAPPER(ret_type, func, ...) \
extern "C" ret_type func(__VA_ARGS__) \