Add support for arm (armhf)

[justinmichaud]

No description provided.

[justinmichaud]

This is still a WIP, but here is a screenshot of JSC build with the following patch:

diff --git a/Source/JavaScriptCore/CMakeLists.txt b/Source/JavaScriptCore/CMakeLists.txt
index 1b7690be3268..75b488799f9b 100644
--- a/Source/JavaScriptCore/CMakeLists.txt
+++ b/Source/JavaScriptCore/CMakeLists.txt
@@ -1583,3 +1583,7 @@ endif ()
 if (ENABLE_JAVASCRIPT_SHELL)
   add_subdirectory(shell)
 endif ()
+
+if (ENABLE_DEVELOPER_MODE)
+    WEBKIT_PREPEND_GLOBAL_COMPILER_FLAGS(-DENABLE_OFFLINE_ASM_ALT_ENTRY=1)
+endif ()
diff --git a/Source/cmake/WebKitCompilerFlags.cmake b/Source/cmake/WebKitCompilerFlags.cmake
index d8fe55036091..02111681f70b 100644
--- a/Source/cmake/WebKitCompilerFlags.cmake
+++ b/Source/cmake/WebKitCompilerFlags.cmake
@@ -136,6 +136,11 @@ if (DEVELOPER_MODE AND DEVELOPER_MODE_FATAL_WARNINGS)
     endif ()
 endif ()

+if (DEVELOPER_MODE)
+    # This lets us get good backtraces, in particular when using JSC_useGdbJITInfo=1.
+    WEBKIT_PREPEND_GLOBAL_COMPILER_FLAGS(-mthumb -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer)
+endif ()
+
 if (COMPILER_IS_GCC_OR_CLANG)
     if (COMPILER_IS_CLANG OR (DEVELOPER_MODE AND NOT ARM))
         # Split debug information in ".debug_types" / ".debug_info" sections - this leads

It is very important to put linux32 in front of the samply invocation.

[mstange]

Very cool!

[justinmichaud]

This requires mstange/framehop#43