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-rw-r--r--libc/sysdeps/linux/arm/bits/arm_asm.h28
1 files changed, 28 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/arm/bits/arm_asm.h b/libc/sysdeps/linux/arm/bits/arm_asm.h
new file mode 100644
index 000000000..1d87df6eb
--- /dev/null
+++ b/libc/sysdeps/linux/arm/bits/arm_asm.h
@@ -0,0 +1,28 @@
+/* Various definitons used the the ARM uClibc assembly code. */
+#ifndef _ARM_ASM_H
+#define _ARM_ASM_H
+
+#ifdef __thumb2__
+.thumb
+.syntax unified
+#define IT(t, cond) i##t cond
+#else
+/* XXX: This can be removed if/when we require an assembler that supports
+ unified assembly syntax. */
+#define IT(t, cond)
+/* Code to return from a thumb function stub. */
+#ifdef __ARM_ARCH_4T__
+#define POP_RET pop {r2, pc}
+#else
+#define POP_RET pop {r2, r3}; bx r3
+#endif
+#endif
+
+#if defined(__ARM_ARCH_6M__)
+/* Force arm mode to flush out errors on M profile cores. */
+#undef IT
+#define THUMB1_ONLY 1
+#endif
+
+#endif /* _ARM_ASM_H */
+