lib: Add mlibc

Signed-off-by: Ian Moffett <ian@osmora.org>

1 files changed, 71 insertions, 0 deletions

diff --git a/lib/mlibc/options/internal/riscv64/setjmp.S b/lib/mlibc/options/internal/riscv64/setjmp.S
new file mode 100644
index 0000000..51568f7
--- /dev/null
+++ b/lib/mlibc/options/internal/riscv64/setjmp.S
@@ -0,0 +1,71 @@
+.global setjmp
+.type setjmp, "function"
+setjmp:
+	sd ra, 0(a0)
+	sd s0, 8(a0)
+	sd s1, 16(a0)
+	sd s2, 24(a0)
+	sd s3, 32(a0)
+	sd s4, 40(a0)
+	sd s5, 48(a0)
+	sd s6, 56(a0)
+	sd s7, 64(a0)
+	sd s8, 72(a0)
+	sd s9, 80(a0)
+	sd s10, 88(a0)
+	sd s11, 96(a0)
+	sd sp, 104(a0)
+	fsd fs0, 112(a0)
+	fsd fs1, 120(a0)
+	fsd fs2, 128(a0)
+	fsd fs3, 136(a0)
+	fsd fs4, 144(a0)
+	fsd fs5, 152(a0)
+	fsd fs6, 160(a0)
+	fsd fs7, 168(a0)
+	fsd fs8, 176(a0)
+	fsd fs9, 184(a0)
+	fsd fs10, 192(a0)
+	fsd fs11, 200(a0)
+	li a0, 0
+	ret
+
+.global sigsetjmp
+.type sigsetjmp, "function"
+sigsetjmp:
+	unimp // TODO
+
+.global longjmp
+.type longjmp, "function"
+longjmp:
+	ld ra,0(a0)
+	ld s0,8(a0)
+	ld s1,16(a0)
+	ld s2,24(a0)
+	ld s3,32(a0)
+	ld s4,40(a0)
+	ld s5,48(a0)
+	ld s6,56(a0)
+	ld s7,64(a0)
+	ld s8,72(a0)
+	ld s9,80(a0)
+	ld s10,88(a0)
+	ld s11,96(a0)
+	ld sp,104(a0)
+	fld fs0,112(a0)
+	fld fs1,120(a0)
+	fld fs2,128(a0)
+	fld fs3,136(a0)
+	fld fs4,144(a0)
+	fld fs5,152(a0)
+	fld fs6,160(a0)
+	fld fs7,168(a0)
+	fld fs8,176(a0)
+	fld fs9,184(a0)
+	fld fs10,192(a0)
+	fld fs11,200(a0)
+	seqz a0,a1
+	add a0,a0,a1
+	ret
+.section .note.GNU-stack,"",%progbits
+