[compiler-rt] [compiler-rt] eventfd api interception on freebsd. (PR #76564)

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<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


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``````````bash
git-clang-format --diff a1f1371fdc7d9af9edf32339dcfebada96d937a5 8f1f8a6ad5e2c367ecbe9e8f1aafb9193d75cc45 -- compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc compiler-rt/lib/sanitizer_common/sanitizer_platform_interceptors.h compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_freebsd.h compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.h compiler-rt/test/msan/eventfd.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc b/compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc
index 77fa1b4965..61c1eab568 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc
@@ -6806,9 +6806,9 @@ INTERCEPTOR(int, eventfd_write, int fd, __sanitizer_eventfd_t value) {
   int res = REAL(eventfd_write)(fd, value);
   return res;
 }
-#define INIT_EVENTFD_READ_WRITE            \
-  COMMON_INTERCEPT_FUNCTION(eventfd_read); \
-  COMMON_INTERCEPT_FUNCTION(eventfd_write)
+#  define INIT_EVENTFD_READ_WRITE            \
+    COMMON_INTERCEPT_FUNCTION(eventfd_read); \
+    COMMON_INTERCEPT_FUNCTION(eventfd_write)
 #else
 #define INIT_EVENTFD_READ_WRITE
 #endif
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.h b/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.h
index 1ee26e0cbb..eac1ff08bb 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.h
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.h
@@ -940,43 +940,43 @@ struct __sanitizer_cookie_io_functions_t {
 };
 
 typedef unsigned long long __sanitizer_eventfd_t;
-#endif
-
-#define IOC_NRBITS 8
-#define IOC_TYPEBITS 8
-#if defined(__powerpc__) || defined(__powerpc64__) || defined(__mips__) || \
-    defined(__sparc__)
-#define IOC_SIZEBITS 13
-#define IOC_DIRBITS 3
-#define IOC_NONE 1U
-#define IOC_WRITE 4U
-#define IOC_READ 2U
-#else
-#define IOC_SIZEBITS 14
-#define IOC_DIRBITS 2
-#define IOC_NONE 0U
-#define IOC_WRITE 1U
-#define IOC_READ 2U
-#endif
-#define IOC_NRMASK ((1 << IOC_NRBITS) - 1)
-#define IOC_TYPEMASK ((1 << IOC_TYPEBITS) - 1)
-#define IOC_SIZEMASK ((1 << IOC_SIZEBITS) - 1)
-#if defined(IOC_DIRMASK)
-#undef IOC_DIRMASK
-#endif
-#define IOC_DIRMASK ((1 << IOC_DIRBITS) - 1)
-#define IOC_NRSHIFT 0
-#define IOC_TYPESHIFT (IOC_NRSHIFT + IOC_NRBITS)
-#define IOC_SIZESHIFT (IOC_TYPESHIFT + IOC_TYPEBITS)
-#define IOC_DIRSHIFT (IOC_SIZESHIFT + IOC_SIZEBITS)
-#define EVIOC_EV_MAX 0x1f
-#define EVIOC_ABS_MAX 0x3f
-
-#define IOC_DIR(nr) (((nr) >> IOC_DIRSHIFT) & IOC_DIRMASK)
-#define IOC_TYPE(nr) (((nr) >> IOC_TYPESHIFT) & IOC_TYPEMASK)
-#define IOC_NR(nr) (((nr) >> IOC_NRSHIFT) & IOC_NRMASK)
+#  endif
 
-#if defined(__sparc__)
+#  define IOC_NRBITS 8
+#  define IOC_TYPEBITS 8
+#  if defined(__powerpc__) || defined(__powerpc64__) || defined(__mips__) || \
+      defined(__sparc__)
+#    define IOC_SIZEBITS 13
+#    define IOC_DIRBITS 3
+#    define IOC_NONE 1U
+#    define IOC_WRITE 4U
+#    define IOC_READ 2U
+#  else
+#    define IOC_SIZEBITS 14
+#    define IOC_DIRBITS 2
+#    define IOC_NONE 0U
+#    define IOC_WRITE 1U
+#    define IOC_READ 2U
+#  endif
+#  define IOC_NRMASK ((1 << IOC_NRBITS) - 1)
+#  define IOC_TYPEMASK ((1 << IOC_TYPEBITS) - 1)
+#  define IOC_SIZEMASK ((1 << IOC_SIZEBITS) - 1)
+#  if defined(IOC_DIRMASK)
+#    undef IOC_DIRMASK
+#  endif
+#  define IOC_DIRMASK ((1 << IOC_DIRBITS) - 1)
+#  define IOC_NRSHIFT 0
+#  define IOC_TYPESHIFT (IOC_NRSHIFT + IOC_NRBITS)
+#  define IOC_SIZESHIFT (IOC_TYPESHIFT + IOC_TYPEBITS)
+#  define IOC_DIRSHIFT (IOC_SIZESHIFT + IOC_SIZEBITS)
+#  define EVIOC_EV_MAX 0x1f
+#  define EVIOC_ABS_MAX 0x3f
+
+#  define IOC_DIR(nr) (((nr) >> IOC_DIRSHIFT) & IOC_DIRMASK)
+#  define IOC_TYPE(nr) (((nr) >> IOC_TYPESHIFT) & IOC_TYPEMASK)
+#  define IOC_NR(nr) (((nr) >> IOC_NRSHIFT) & IOC_NRMASK)
+
+#  if defined(__sparc__)
 // In sparc the 14 bits SIZE field overlaps with the
 // least significant bit of DIR, so either IOC_READ or
 // IOC_WRITE shall be 1 in order to get a non-zero SIZE.

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https://github.com/llvm/llvm-project/pull/76564