1 files changed, 50 insertions, 0 deletions
diff --git a/libc-top-half/musl/src/setjmp/arm/longjmp.S b/libc-top-half/musl/src/setjmp/arm/longjmp.S
new file mode 100644
index 0000000..8df0b81
--- /dev/null
+++ b/libc-top-half/musl/src/setjmp/arm/longjmp.S
@@ -0,0 +1,50 @@
+.syntax unified
+.global _longjmp
+.global longjmp
+.type _longjmp,%function
+.type longjmp,%function
+_longjmp:
+longjmp:
+	mov ip,r0
+	movs r0,r1
+	moveq r0,#1
+	ldmia ip!, {v1,v2,v3,v4,v5,v6,sl,fp}
+	ldmia ip!, {r2,lr}
+	mov sp,r2
+
+	adr r1,1f
+	ldr r2,1f
+	ldr r1,[r1,r2]
+
+#if __ARM_ARCH < 8
+	tst r1,#0x260
+	beq 3f
+	// HWCAP_ARM_FPA
+	tst r1,#0x20
+	beq 2f
+	ldc p2, cr4, [ip], #48
+#endif
+2:	tst r1,#0x40
+	beq 2f
+	.fpu vfp
+	vldmia ip!, {d8-d15}
+	.fpu softvfp
+	.eabi_attribute 10, 0
+	.eabi_attribute 27, 0
+#if __ARM_ARCH < 8
+	// HWCAP_ARM_IWMMXT
+2:	tst r1,#0x200
+	beq 3f
+	ldcl p1, cr10, [ip], #8
+	ldcl p1, cr11, [ip], #8
+	ldcl p1, cr12, [ip], #8
+	ldcl p1, cr13, [ip], #8
+	ldcl p1, cr14, [ip], #8
+	ldcl p1, cr15, [ip], #8
+#endif
+2:
+3:	bx lr
+
+.hidden __hwcap
+.align 2
+1:	.word __hwcap-1b