Delete unused macros from compiler_specific.h
Many of these macros likely were pulled in for PartitionAlloc. Since
modern PA has its own compiler_specific.h, PDFium's compiler_specific.h
can remove them.
Change-Id: I885b84d94040a3a886af37eacdfa5ba8d27f4879
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/106310
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
diff --git a/third_party/base/compiler_specific.h b/third_party/base/compiler_specific.h
index 0fd1dd6..8968f65 100644
--- a/third_party/base/compiler_specific.h
+++ b/third_party/base/compiler_specific.h
@@ -25,108 +25,6 @@
#define NOINLINE
#endif
-#if defined(COMPILER_GCC) && defined(NDEBUG)
-#define ALWAYS_INLINE inline __attribute__((__always_inline__))
-#elif defined(COMPILER_MSVC) && defined(NDEBUG)
-#define ALWAYS_INLINE __forceinline
-#else
-#define ALWAYS_INLINE inline
-#endif
-
-// Specify memory alignment for structs, classes, etc.
-// Use like:
-// class ALIGNAS(16) MyClass { ... }
-// ALIGNAS(16) int array[4];
-//
-// In most places you can use the C++11 keyword "alignas", which is preferred.
-//
-// But compilers have trouble mixing __attribute__((...)) syntax with
-// alignas(...) syntax.
-//
-// Doesn't work in clang or gcc:
-// struct alignas(16) __attribute__((packed)) S { char c; };
-// Works in clang but not gcc:
-// struct __attribute__((packed)) alignas(16) S2 { char c; };
-// Works in clang and gcc:
-// struct alignas(16) S3 { char c; } __attribute__((packed));
-//
-// There are also some attributes that must be specified *before* a class
-// definition: visibility (used for exporting functions/classes) is one of
-// these attributes. This means that it is not possible to use alignas() with a
-// class that is marked as exported.
-#if defined(COMPILER_MSVC)
-#define ALIGNAS(byte_alignment) __declspec(align(byte_alignment))
-#elif defined(COMPILER_GCC)
-#define ALIGNAS(byte_alignment) __attribute__((aligned(byte_alignment)))
-#endif
-
-// Tell the compiler a function is using a printf-style format string.
-// |format_param| is the one-based index of the format string parameter;
-// |dots_param| is the one-based index of the "..." parameter.
-// For v*printf functions (which take a va_list), pass 0 for dots_param.
-// (This is undocumented but matches what the system C headers do.)
-#if defined(COMPILER_GCC) || defined(__clang__)
-#define PRINTF_FORMAT(format_param, dots_param) \
- __attribute__((format(printf, format_param, dots_param)))
-#else
-#define PRINTF_FORMAT(format_param, dots_param)
-#endif
-
-// WPRINTF_FORMAT is the same, but for wide format strings.
-// This doesn't appear to yet be implemented in any compiler.
-// See http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38308 .
-#define WPRINTF_FORMAT(format_param, dots_param)
-// If available, it would look like:
-// __attribute__((format(wprintf, format_param, dots_param)))
-
-// Sanitizers annotations.
-#if defined(__has_attribute)
-#if __has_attribute(no_sanitize)
-#define NO_SANITIZE(what) __attribute__((no_sanitize(what)))
-#endif
-#endif
-#if !defined(NO_SANITIZE)
-#define NO_SANITIZE(what)
-#endif
-
-// MemorySanitizer annotations.
-#if defined(MEMORY_SANITIZER) && !BUILDFLAG(IS_NACL)
-#include <sanitizer/msan_interface.h>
-
-// Mark a memory region fully initialized.
-// Use this to annotate code that deliberately reads uninitialized data, for
-// example a GC scavenging root set pointers from the stack.
-#define MSAN_UNPOISON(p, size) __msan_unpoison(p, size)
-
-// Check a memory region for initializedness, as if it was being used here.
-// If any bits are uninitialized, crash with an MSan report.
-// Use this to sanitize data which MSan won't be able to track, e.g. before
-// passing data to another process via shared memory.
-#define MSAN_CHECK_MEM_IS_INITIALIZED(p, size) \
- __msan_check_mem_is_initialized(p, size)
-#else // MEMORY_SANITIZER
-#define MSAN_UNPOISON(p, size)
-#define MSAN_CHECK_MEM_IS_INITIALIZED(p, size)
-#endif // MEMORY_SANITIZER
-
-// DISABLE_CFI_PERF -- Disable Control Flow Integrity for perf reasons.
-#if !defined(DISABLE_CFI_PERF)
-#if defined(__clang__) && defined(OFFICIAL_BUILD)
-#define DISABLE_CFI_PERF __attribute__((no_sanitize("cfi")))
-#else
-#define DISABLE_CFI_PERF
-#endif
-#endif
-
-// Macro useful for writing cross-platform function pointers.
-#if !defined(CDECL)
-#if BUILDFLAG(IS_WIN)
-#define CDECL __cdecl
-#else // BUILDFLAG(IS_WIN)
-#define CDECL
-#endif // BUILDFLAG(IS_WIN)
-#endif // !defined(CDECL)
-
// Macro for hinting that an expression is likely to be false.
#if !defined(UNLIKELY)
#if defined(COMPILER_GCC) || defined(__clang__)
@@ -144,14 +42,6 @@
#endif // defined(COMPILER_GCC)
#endif // !defined(LIKELY)
-// Compiler feature-detection.
-// clang.llvm.org/docs/LanguageExtensions.html#has-feature-and-has-extension
-#if defined(__has_feature)
-#define HAS_FEATURE(FEATURE) __has_feature(FEATURE)
-#else
-#define HAS_FEATURE(FEATURE) 0
-#endif
-
// Marks a type as being eligible for the "trivial" ABI despite having a
// non-trivial destructor or copy/move constructor. Such types can be relocated
// after construction by simply copying their memory, which makes them eligible
@@ -180,10 +70,8 @@
#endif
#if defined(__clang__)
-#define GSL_OWNER [[gsl::Owner]]
#define GSL_POINTER [[gsl::Pointer]]
#else
-#define GSL_OWNER
#define GSL_POINTER
#endif
