From bd5969fc876a10b18613302db7087ef3c40f18e1 Mon Sep 17 00:00:00 2001
From: Ian Moffett <ian@osmora.org>
Date: Thu, 7 Mar 2024 17:28:00 -0500
Subject: lib: Add mlibc

Signed-off-by: Ian Moffett <ian@osmora.org>
---
 lib/mlibc/sysdeps/managarm/x86_64/crt-src/Scrt1.S |  8 ++++++++
 lib/mlibc/sysdeps/managarm/x86_64/crt-src/crt0.S  | 10 ++++++++++
 lib/mlibc/sysdeps/managarm/x86_64/crt-src/crti.S  | 15 +++++++++++++++
 lib/mlibc/sysdeps/managarm/x86_64/crt-src/crtn.S  | 11 +++++++++++
 4 files changed, 44 insertions(+)
 create mode 100644 lib/mlibc/sysdeps/managarm/x86_64/crt-src/Scrt1.S
 create mode 100644 lib/mlibc/sysdeps/managarm/x86_64/crt-src/crt0.S
 create mode 100644 lib/mlibc/sysdeps/managarm/x86_64/crt-src/crti.S
 create mode 100644 lib/mlibc/sysdeps/managarm/x86_64/crt-src/crtn.S

(limited to 'lib/mlibc/sysdeps/managarm/x86_64/crt-src')

diff --git a/lib/mlibc/sysdeps/managarm/x86_64/crt-src/Scrt1.S b/lib/mlibc/sysdeps/managarm/x86_64/crt-src/Scrt1.S
new file mode 100644
index 0000000..d0e8213
--- /dev/null
+++ b/lib/mlibc/sysdeps/managarm/x86_64/crt-src/Scrt1.S
@@ -0,0 +1,8 @@
+.section .text
+.global _start
+_start:
+	mov %rsp, %rdi
+	lea main(%rip), %rsi
+	call __mlibc_entry
+.section .note.GNU-stack,"",%progbits
+
diff --git a/lib/mlibc/sysdeps/managarm/x86_64/crt-src/crt0.S b/lib/mlibc/sysdeps/managarm/x86_64/crt-src/crt0.S
new file mode 100644
index 0000000..6afb421
--- /dev/null
+++ b/lib/mlibc/sysdeps/managarm/x86_64/crt-src/crt0.S
@@ -0,0 +1,10 @@
+
+.section .text
+.global _start
+_start:
+	mov %rsp, %rdi
+	mov $main, %rsi
+	call __mlibc_entry
+
+.section .note.GNU-stack,"",%progbits
+
diff --git a/lib/mlibc/sysdeps/managarm/x86_64/crt-src/crti.S b/lib/mlibc/sysdeps/managarm/x86_64/crt-src/crti.S
new file mode 100644
index 0000000..1ca20f2
--- /dev/null
+++ b/lib/mlibc/sysdeps/managarm/x86_64/crt-src/crti.S
@@ -0,0 +1,15 @@
+	.ident "x86_64-managarm-mlibc crti"
+
+	.section .init
+	.globl	_init
+	.type	_init,@function
+_init:
+	push %rax
+
+	.section .fini
+	.globl	_fini
+	.type	_fini,@function
+_fini:
+	push %rax
+
+.section .note.GNU-stack,"",%progbits
diff --git a/lib/mlibc/sysdeps/managarm/x86_64/crt-src/crtn.S b/lib/mlibc/sysdeps/managarm/x86_64/crt-src/crtn.S
new file mode 100644
index 0000000..fdb309e
--- /dev/null
+++ b/lib/mlibc/sysdeps/managarm/x86_64/crt-src/crtn.S
@@ -0,0 +1,11 @@
+.ident "x86_64-managarm-mlibc crtn"
+
+.section .init
+	pop %rax
+	ret
+
+.section .fini
+	pop %rax
+	ret
+
+.section .note.GNU-stack,"",%progbits
-- 
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