Squash commits for public release

libs/libc/sysdeps/unix/arm32/crt0.S

@@ -0,0 +1,21 @@
+.section .text
+
+.extern main
+.extern exit
+.extern _init
+.extern _deinit
+
+.global _start
+_start:
+	push    {r0-r2}
+	sub     sp, sp, #4 // align to 16bytes
+	bl      _init
+	add     sp, sp, #4
+	pop     {r0-r2}
+	bl      main
+	push    {r0}
+	sub     sp, sp, #12 // align to 16bytes
+	bl      _deinit
+	add     sp, sp, #12
+	pop     {r0}
+	bl      exit

libs/libc/sysdeps/unix/arm64/crt0.S

@@ -0,0 +1,21 @@
+.section .text
+
+.extern main
+.extern exit
+.extern _init
+.extern _deinit
+
+.global _start
+_start:
+	sub sp, sp, #0x40
+	stp x0,x1,[sp]
+	stp x2,x3,[sp,#0x10]
+	bl      _init
+	ldp x0,x1,[sp]
+	ldp x2,x3,[sp,#0x10]
+	bl      main
+	stp x0,x1,[sp]
+	bl      _deinit
+	ldp x0,x1,[sp]
+	add sp, sp, #0x40
+	bl      exit

libs/libc/sysdeps/unix/generic/ioctl.c

@@ -0,0 +1,8 @@
+#include <sys/ioctl.h>
+#include <sysdep.h>
+
+int ioctl(int fd, uintptr_t cmd, uintptr_t arg)
+{
+    int res = DO_SYSCALL_3(SYS_IOCTL, fd, cmd, arg);
+    RETURN_WITH_ERRNO(res, res, -1);
+}

libs/libc/sysdeps/unix/riscv64/crt0.S

@@ -0,0 +1,32 @@
+.section .text
+
+.extern main
+.extern exit
+.extern _init
+.extern _deinit
+.extern __global_pointer$
+
+.global _start
+_start:
+	.option push
+    .option norelax
+    la gp, __global_pointer$
+    .option pop
+	addi sp, sp, -0x40
+	sd a0, 0(sp)
+	sd a1, 8(sp)
+	sd a2, 16(sp)
+	sd a3, 24(sp)
+	call _init
+	ld a0, 0(sp)
+	ld a1, 8(sp)
+	ld a2, 16(sp)
+	ld a3, 24(sp)
+	call main
+	sd a0, 0(sp)
+	sd a1, 8(sp)
+	call _deinit
+	ld a0, 0(sp)
+	ld a1, 8(sp)
+	addi sp, sp, 0x40
+	call exit

libs/libc/sysdeps/unix/x86/crt0.S

@@ -0,0 +1,15 @@
+section .text
+
+extern main
+extern exit
+extern _init
+extern _deinit
+
+global _start:function (_start.end - _start)
+_start:
+	call _init
+	call main
+	push eax
+	call _deinit
+	call exit
+.end:

libs/libc/sysdeps/unix/x86_64/crt0.S

@@ -0,0 +1,27 @@
+[bits 64]
+
+section .text
+
+extern main
+extern exit
+extern _init
+extern _deinit
+
+global _start:function (_start.end - _start)
+_start:
+	push rsi
+	push rdi
+	push rdx
+	push rcx
+	call _init
+	pop rcx
+	pop rdx
+	pop rdi
+	pop rsi
+	call main
+	push rax
+	call _deinit
+	pop rax
+	mov rdi, rax
+	call exit
+.end: