1 files changed, 55 insertions, 0 deletions
diff --git a/libc-top-half/musl/src/ldso/arm/tlsdesc.S b/libc-top-half/musl/src/ldso/arm/tlsdesc.S
new file mode 100644
index 0000000..3ae133c
--- /dev/null
+++ b/libc-top-half/musl/src/ldso/arm/tlsdesc.S
@@ -0,0 +1,55 @@
+.syntax unified
+
+.text
+.global __tlsdesc_static
+.hidden __tlsdesc_static
+.type __tlsdesc_static,%function
+__tlsdesc_static:
+	ldr r0,[r0]
+	bx lr
+
+.global __tlsdesc_dynamic
+.hidden __tlsdesc_dynamic
+.type __tlsdesc_dynamic,%function
+__tlsdesc_dynamic:
+	push {r2,r3,ip,lr}
+	ldr r1,[r0]
+	ldr r2,[r1,#4]  // r2 = offset
+	ldr r1,[r1]     // r1 = modid
+
+#if ((__ARM_ARCH_6K__ || __ARM_ARCH_6KZ__ || __ARM_ARCH_6ZK__) && !__thumb__) \
+ || __ARM_ARCH_7A__ || __ARM_ARCH_7R__ || __ARM_ARCH >= 7
+	mrc p15,0,r0,c13,c0,3
+#else
+	ldr r0,1f
+	add r0,r0,pc
+	ldr r0,[r0]
+2:
+#if __ARM_ARCH >= 5
+	blx r0          // r0 = tp
+#else
+#if __thumb__
+	add lr,pc,#1
+#else
+	mov lr,pc
+#endif
+	bx r0
+#endif
+#endif
+	ldr r3,[r0,#-4] // r3 = dtv
+	ldr ip,[r3,r1,LSL #2]
+	sub r0,ip,r0
+	add r0,r0,r2    // r0 = r3[r1]-r0+r2
+#if __ARM_ARCH >= 5
+	pop {r2,r3,ip,pc}
+#else
+	pop {r2,r3,ip,lr}
+	bx lr
+#endif
+
+#if ((__ARM_ARCH_6K__ || __ARM_ARCH_6KZ__ || __ARM_ARCH_6ZK__) && !__thumb__) \
+ || __ARM_ARCH_7A__ || __ARM_ARCH_7R__ || __ARM_ARCH >= 7
+#else
+	.align 2
+1:	.word __a_gettp_ptr - 2b
+#endif