> Date: Sat, 24 Feb 2024 20:01:06 +0100
> From: Theo Buehler <tb@theobuehler.org>
> 
> This adds missing landing pads for amd64 and arm64. Not sure if for
> upstream a <cet.h> dance using _CET_ENDBR would be preferable. For the
> port I kept it simple.
> 
> ld: warning: objc_msg_lookup: missing endbr64
> ld: warning: objc_msg_lookup_stret: missing endbr64
> ld: warning: objc_msg_lookup_super: missing endbr64
> ld: warning: objc_msg_lookup_super_stret: missing endbr64
> ld: warning: OFForward: missing endbr64
> ld: warning: OFForward_stret: missing endbr64

My knowledge of ObjC is limited, but to me it looks like these are
right.

ok kettenis@

> Index: Makefile
> ===================================================================
> RCS file: /cvs/ports/devel/objfw/Makefile,v
> diff -u -p -r1.6 Makefile
> --- Makefile	24 Jan 2024 21:08:06 -0000	1.6
> +++ Makefile	24 Feb 2024 18:50:12 -0000
> @@ -1,6 +1,7 @@
>  COMMENT =	portable, lightweight framework for the Objective-C language
>  
>  DISTNAME =	objfw-1.0.8
> +REVISION =	0
>  
>  SHARED_LIBS +=	objfw		0.0
>  SHARED_LIBS +=	objfwrt		0.0
> Index: patches/patch-src_forwarding_forwarding-amd64-elf_S
> ===================================================================
> RCS file: patches/patch-src_forwarding_forwarding-amd64-elf_S
> diff -N patches/patch-src_forwarding_forwarding-amd64-elf_S
> --- /dev/null	1 Jan 1970 00:00:00 -0000
> +++ patches/patch-src_forwarding_forwarding-amd64-elf_S	24 Feb 2024 18:53:27 -0000
> @@ -0,0 +1,19 @@
> +Index: src/forwarding/forwarding-amd64-elf.S
> +--- src/forwarding/forwarding-amd64-elf.S.orig
> ++++ src/forwarding/forwarding-amd64-elf.S
> +@@ -22,6 +22,7 @@
> + 
> + .section .text
> + OFForward:
> ++	endbr64
> + 	pushq	%rbp
> + 	movq	%rsp, %rbp
> + 
> +@@ -107,6 +108,7 @@ OFForward:
> + .size OFForward, .-OFForward
> + 
> + OFForward_stret:
> ++	endbr64
> + 	pushq	%rbp
> + 	movq	%rsp, %rbp
> + 
> Index: patches/patch-src_forwarding_forwarding-arm64-elf_S
> ===================================================================
> RCS file: patches/patch-src_forwarding_forwarding-arm64-elf_S
> diff -N patches/patch-src_forwarding_forwarding-arm64-elf_S
> --- /dev/null	1 Jan 1970 00:00:00 -0000
> +++ patches/patch-src_forwarding_forwarding-arm64-elf_S	24 Feb 2024 18:53:27 -0000
> @@ -0,0 +1,11 @@
> +Index: src/forwarding/forwarding-arm64-elf.S
> +--- src/forwarding/forwarding-arm64-elf.S.orig
> ++++ src/forwarding/forwarding-arm64-elf.S
> +@@ -23,6 +23,7 @@
> + .section .text
> + OFForward:
> + OFForward_stret:
> ++	bti	c
> + 	stp	fp, lr, [sp, #-208]!
> + 	mov	fp, sp
> + 	sub	sp, sp, #208
> Index: patches/patch-src_runtime_lookup-asm_lookup-asm-amd64-elf_S
> ===================================================================
> RCS file: patches/patch-src_runtime_lookup-asm_lookup-asm-amd64-elf_S
> diff -N patches/patch-src_runtime_lookup-asm_lookup-asm-amd64-elf_S
> --- /dev/null	1 Jan 1970 00:00:00 -0000
> +++ patches/patch-src_runtime_lookup-asm_lookup-asm-amd64-elf_S	24 Feb 2024 18:53:27 -0000
> @@ -0,0 +1,19 @@
> +Index: src/runtime/lookup-asm/lookup-asm-amd64-elf.S
> +--- src/runtime/lookup-asm/lookup-asm-amd64-elf.S.orig
> ++++ src/runtime/lookup-asm/lookup-asm-amd64-elf.S
> +@@ -25,6 +25,7 @@
> + .section .text
> + .macro GENERATE_LOOKUP name notFound
> + \name:
> ++	endbr64
> + 	testq	%rdi, %rdi
> + 	jz	returnNilMethod
> + 
> +@@ -68,6 +69,7 @@
> + 
> + .macro GENERATE_LOOKUP_SUPER name lookup
> + \name:
> ++	endbr64
> + 	movq	%rdi, %r8
> + 	movq	(%rdi), %rdi
> + 	testq	%rdi, %rdi
> Index: patches/patch-src_runtime_lookup-asm_lookup-asm-arm64-elf_S
> ===================================================================
> RCS file: patches/patch-src_runtime_lookup-asm_lookup-asm-arm64-elf_S
> diff -N patches/patch-src_runtime_lookup-asm_lookup-asm-arm64-elf_S
> --- /dev/null	1 Jan 1970 00:00:00 -0000
> +++ patches/patch-src_runtime_lookup-asm_lookup-asm-arm64-elf_S	24 Feb 2024 18:53:27 -0000
> @@ -0,0 +1,19 @@
> +Index: src/runtime/lookup-asm/lookup-asm-arm64-elf.S
> +--- src/runtime/lookup-asm/lookup-asm-arm64-elf.S.orig
> ++++ src/runtime/lookup-asm/lookup-asm-arm64-elf.S
> +@@ -25,6 +25,7 @@
> + .section .text
> + .macro GENERATE_LOOKUP name notFound
> + \name:
> ++	bti	c
> + 	cbz	x0, returnNilMethod
> + 
> + 	tst	x0, #1
> +@@ -68,6 +69,7 @@
> + 
> + .macro GENERATE_LOOKUP_SUPER name lookup
> + \name:
> ++	bti	c
> + 	mov	x2, x0
> + 	ldr	x0, [x0]
> + 	cbz	x0, returnNilMethod
>