[x86/Linux] Introduce UNIX_X86_ABI definition (dotnet#8863)

Add UNIX_X86_ABI definition for Unix/Linux specific ABI parts First will be for 16 byte stack alignment codes
manofstick · Jan 16, 2017 · 239599e · 239599e
1 parent 1973a1c
commit 239599e
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diff --git a/clrdefinitions.cmake b/clrdefinitions.cmake
@@ -57,6 +57,8 @@ if (CLR_CMAKE_PLATFORM_UNIX)
  add_definitions(-DUNIX_AMD64_ABI)
  elseif (CLR_CMAKE_PLATFORM_UNIX_ARM)
  add_definitions(-DUNIX_ARM_ABI)
+ elseif (CLR_CMAKE_PLATFORM_UNIX_X86)
+ add_definitions(-DUNIX_X86_ABI)
  endif()
 
 endif(CLR_CMAKE_PLATFORM_UNIX)

diff --git a/src/jit/target.h b/src/jit/target.h
@@ -13,6 +13,13 @@
 #endif
 #endif
 
+// If the UNIX_X86_ABI is defined make sure that _TARGET_X86_ is also defined.
+#if defined(UNIX_X86_ABI)
+#if !defined(_TARGET_X86_)
+#error When UNIX_X86_ABI is defined you must define _TARGET_X86_ defined as well.
+#endif
+#endif
+
 #if (defined(FEATURE_CORECLR) && defined(PLATFORM_UNIX))
 #define FEATURE_VARARG 0
 #else // !(defined(FEATURE_CORECLR) && defined(PLATFORM_UNIX))