1 files changed, 75 insertions, 0 deletions
diff --git a/Toolchain/Patches/llvm/0009-compiler-rt-llvm-Enable-profile-instrumentation-for-.patch b/Toolchain/Patches/llvm/0009-compiler-rt-llvm-Enable-profile-instrumentation-for-.patch
new file mode 100644
index 0000000000..15370af2ce
--- /dev/null
+++ b/Toolchain/Patches/llvm/0009-compiler-rt-llvm-Enable-profile-instrumentation-for-.patch
@@ -0,0 +1,75 @@
+From 539a12f2955a737f550be655c56a1a993eaa1ae2 Mon Sep 17 00:00:00 2001
+From: Andrew Kaster <akaster@serenityos.org>
+Date: Fri, 4 Mar 2022 15:13:42 -0700
+Subject: [PATCH 9/9] [compiler-rt/llvm] Enable profile instrumentation
+ for SerenityOS
+
+Treat SerenityOS the same as other *NIX platforms that behave close
+enough to linux to use the pre-canned InstrProfiling implementation.
+
+Curiously, enabling profiling for the SerenityOS target changes the ELF
+OS ABI for userspace binaries to 3, or GNU/Linux.
+---
+ compiler-rt/cmake/config-ix.cmake                      | 2 +-
+ compiler-rt/lib/profile/InstrProfilingPlatformLinux.c  | 3 ++-
+ compiler-rt/lib/profile/InstrProfilingPlatformOther.c  | 2 +-
+ llvm/lib/Transforms/Instrumentation/InstrProfiling.cpp | 3 ++-
+ 4 files changed, 6 insertions(+), 4 deletions(-)
+
+diff --git a/compiler-rt/cmake/config-ix.cmake b/compiler-rt/cmake/config-ix.cmake
+index 7a47b7f..8d4211d 100644
+--- a/compiler-rt/cmake/config-ix.cmake
++++ b/compiler-rt/cmake/config-ix.cmake
+@@ -738,7 +738,7 @@ else()
+ endif()
+ 
+ if (PROFILE_SUPPORTED_ARCH AND NOT LLVM_USE_SANITIZER AND
+-    OS_NAME MATCHES "Darwin|Linux|FreeBSD|Windows|Android|Fuchsia|SunOS|NetBSD|AIX")
++    OS_NAME MATCHES "Darwin|Linux|FreeBSD|Windows|Android|Fuchsia|SunOS|NetBSD|AIX|SerenityOS")
+   set(COMPILER_RT_HAS_PROFILE TRUE)
+ else()
+   set(COMPILER_RT_HAS_PROFILE FALSE)
+diff --git a/compiler-rt/lib/profile/InstrProfilingPlatformLinux.c b/compiler-rt/lib/profile/InstrProfilingPlatformLinux.c
+index 592c09b..1833682 100644
+--- a/compiler-rt/lib/profile/InstrProfilingPlatformLinux.c
++++ b/compiler-rt/lib/profile/InstrProfilingPlatformLinux.c
+@@ -7,7 +7,8 @@
+ \*===----------------------------------------------------------------------===*/
+ 
+ #if defined(__linux__) || defined(__FreeBSD__) || defined(__Fuchsia__) || \
+-    (defined(__sun__) && defined(__svr4__)) || defined(__NetBSD__)
++    (defined(__sun__) && defined(__svr4__)) || defined(__NetBSD__) || \
++    defined(__serenity__)
+ 
+ #include <elf.h>
+ #include <link.h>
+diff --git a/compiler-rt/lib/profile/InstrProfilingPlatformOther.c b/compiler-rt/lib/profile/InstrProfilingPlatformOther.c
+index 3e9b3ca..d257013 100644
+--- a/compiler-rt/lib/profile/InstrProfilingPlatformOther.c
++++ b/compiler-rt/lib/profile/InstrProfilingPlatformOther.c
+@@ -8,7 +8,7 @@
+ 
+ #if !defined(__APPLE__) && !defined(__linux__) && !defined(__FreeBSD__) &&     \
+     !(defined(__sun__) && defined(__svr4__)) && !defined(__NetBSD__) &&        \
+-    !defined(_WIN32)
++    !defined(_WIN32) && !defined(__serenity__)
+ 
+ #include <stdlib.h>
+ #include <stdio.h>
+diff --git a/llvm/lib/Transforms/Instrumentation/InstrProfiling.cpp b/llvm/lib/Transforms/Instrumentation/InstrProfiling.cpp
+index 6868408..eaa1b64 100644
+--- a/llvm/lib/Transforms/Instrumentation/InstrProfiling.cpp
++++ b/llvm/lib/Transforms/Instrumentation/InstrProfiling.cpp
+@@ -857,7 +857,8 @@ static bool needsRuntimeRegistrationOfSectionRange(const Triple &TT) {
+     return false;
+   // Use linker script magic to get data/cnts/name start/end.
+   if (TT.isOSLinux() || TT.isOSFreeBSD() || TT.isOSNetBSD() ||
+-      TT.isOSSolaris() || TT.isOSFuchsia() || TT.isPS4CPU() || TT.isOSWindows())
++      TT.isOSSolaris() || TT.isOSFuchsia() || TT.isPS4CPU() ||
++      TT.isOSWindows() || TT.isOSSerenity())
+     return false;
+ 
+   return true;
+-- 
+2.32.0
+