diff --git a/openmp/runtime/src/kmp_platform.h b/openmp/runtime/src/kmp_platform.h
--- a/openmp/runtime/src/kmp_platform.h
+++ b/openmp/runtime/src/kmp_platform.h
@@ -93,9 +93,9 @@
 #define KMP_ARCH_X86 0
 #define KMP_ARCH_X86_64 0
 #define KMP_ARCH_AARCH64 0
-#define KMP_ARCH_PPC64_BE 0
-#define KMP_ARCH_PPC64_LE 0
-#define KMP_ARCH_PPC64 (KMP_ARCH_PPC64_LE || KMP_ARCH_PPC64_BE)
+#define KMP_ARCH_PPC64_ELFv1 0
+#define KMP_ARCH_PPC64_ELFv2 0
+#define KMP_ARCH_PPC64 (KMP_ARCH_PPC64_ELFv2 || KMP_ARCH_PPC64_ELFv1)
 #define KMP_ARCH_MIPS 0
 #define KMP_ARCH_MIPS64 0
 #define KMP_ARCH_RISCV64 0
@@ -118,12 +118,12 @@
 #undef KMP_ARCH_X86
 #define KMP_ARCH_X86 1
 #elif defined __powerpc64__
-#if defined __LITTLE_ENDIAN__
-#undef KMP_ARCH_PPC64_LE
-#define KMP_ARCH_PPC64_LE 1
+#if defined(_CALL_ELF) && _CALL_ELF == 2
+#undef KMP_ARCH_PPC64_ELFv2
+#define KMP_ARCH_PPC64_ELFv2 1
 #else
-#undef KMP_ARCH_PPC64_BE
-#define KMP_ARCH_PPC64_BE 1
+#undef KMP_ARCH_PPC64_ELFv1
+#define KMP_ARCH_PPC64_ELFv1 1
 #endif
 #elif defined __aarch64__
 #undef KMP_ARCH_AARCH64
diff --git a/openmp/runtime/src/z_Linux_asm.S b/openmp/runtime/src/z_Linux_asm.S
--- a/openmp/runtime/src/z_Linux_asm.S
+++ b/openmp/runtime/src/z_Linux_asm.S
@@ -1367,12 +1367,12 @@
 // return:	r3	(always 1/TRUE)
 //
 	.text
-# if KMP_ARCH_PPC64_LE
+# if KMP_ARCH_PPC64_ELFv2
 	.abiversion 2
 # endif
 	.globl	__kmp_invoke_microtask
 
-# if KMP_ARCH_PPC64_LE
+# if KMP_ARCH_PPC64_ELFv2
 	.p2align	4
 # else
 	.p2align	2
@@ -1380,7 +1380,7 @@
 
 	.type	__kmp_invoke_microtask,@function
 
-# if KMP_ARCH_PPC64_LE
+# if KMP_ARCH_PPC64_ELFv2
 __kmp_invoke_microtask:
 .Lfunc_begin0:
 .Lfunc_gep0:
@@ -1424,7 +1424,7 @@
 	.cfi_offset lr, 16
 
 // Compute the size necessary for the local stack frame.
-# if KMP_ARCH_PPC64_LE
+# if KMP_ARCH_PPC64_ELFv2
 	li 12, 72
 # else
 	li 12, 88
@@ -1502,7 +1502,7 @@
 // for the microtask begins 48 + 8*8 == 112 bytes above r1 for ELFv1 and
 // 32 + 8*8 == 96 bytes above r1 for ELFv2.
 	addi 4, 4, 40
-# if KMP_ARCH_PPC64_LE
+# if KMP_ARCH_PPC64_ELFv2
 	addi 12, 1, 88
 # else
 	addi 12, 1, 104
@@ -1514,7 +1514,7 @@
 	bdnz .Lnext
 
 .Lcall:
-# if KMP_ARCH_PPC64_LE
+# if KMP_ARCH_PPC64_ELFv2
 	std 2, 24(1)
 	mr 12, 3
 #else
@@ -1530,7 +1530,7 @@
 
 	mtctr 12
 	bctrl
-# if KMP_ARCH_PPC64_LE
+# if KMP_ARCH_PPC64_ELFv2
 	ld 2, 24(1)
 # else
 	ld 2, 40(1)