user: implement mlibc as the libc, finally.

It's finally done.. Signed-off-by: kaguya <vpshinomiya@protonmail.com>
2026-05-02 03:31:49 -04:00
parent 2fa39ad85a
commit 9a9b91c940
2387 changed files with 152741 additions and 315 deletions
@@ -0,0 +1,29 @@
+.section .text
+.global __mlibc_spawn_thread
+.type __mlibc_spawn_thread, "function"
+__mlibc_spawn_thread:
+	// __mlibc_spawn_thread(flags, stack, pid_out, child_tid, tls)
+	//                         a0,     a1,     a2,        a3,  a4
+	//           syscall(NR_clone, flags, stack, ptid, tls, ctid)
+	//                         a7,    a0,    a1,   a2,  a3,   a4
+
+	// Swap a3 <-> a4
+	mv a5, a4
+	mv a4, a3
+	mv a3, a5
+
+	li a7, 220 // NR_clone
+	ecall
+	bnez a0, .parent
+
+	ld a0, 0(sp)
+	ld a1, 8(sp)
+	addi sp, sp, 8
+	andi sp, sp, -16
+	call __mlibc_enter_thread
+	unimp
+
+.parent:
+	ret
+.section .note.GNU-stack,"",%progbits
+