From 8d193e8332c125cd00522af93175b39b4ee59b7f Mon Sep 17 00:00:00 2001
From: kirk <knickish@gmail.com>
Date: Thu, 7 Nov 2024 22:59:03 +0000
Subject: [PATCH] add m68k arch support

---
 src/common.rs           |  2 ++
 src/read/elf/file.rs    |  1 +
 src/write/elf/object.rs | 12 ++++++++++++
 3 files changed, 15 insertions(+)

diff --git a/src/common.rs b/src/common.rs
index 9ed0f443..9f2bcc14 100644
--- a/src/common.rs
+++ b/src/common.rs
@@ -19,6 +19,7 @@ pub enum Architecture {
     X86_64_X32,
     Hexagon,
     LoongArch64,
+    M68k,
     Mips,
     Mips64,
     Msp430,
@@ -66,6 +67,7 @@ impl Architecture {
             Architecture::X86_64_X32 => Some(AddressSize::U32),
             Architecture::Hexagon => Some(AddressSize::U32),
             Architecture::LoongArch64 => Some(AddressSize::U64),
+            Architecture::M68k => Some(AddressSize::U32),
             Architecture::Mips => Some(AddressSize::U32),
             Architecture::Mips64 => Some(AddressSize::U64),
             Architecture::Msp430 => Some(AddressSize::U16),
diff --git a/src/read/elf/file.rs b/src/read/elf/file.rs
index 6de69ee5..ad5d9add 100644
--- a/src/read/elf/file.rs
+++ b/src/read/elf/file.rs
@@ -216,6 +216,7 @@ where
             (elf::EM_X86_64, true) => Architecture::X86_64,
             (elf::EM_HEXAGON, _) => Architecture::Hexagon,
             (elf::EM_LOONGARCH, true) => Architecture::LoongArch64,
+            (elf::EM_68K, false) => Architecture::M68k,
             (elf::EM_MIPS, false) => Architecture::Mips,
             (elf::EM_MIPS, true) => Architecture::Mips64,
             (elf::EM_MSP430, _) => Architecture::Msp430,
diff --git a/src/write/elf/object.rs b/src/write/elf/object.rs
index cd6b8ead..daa98fb7 100644
--- a/src/write/elf/object.rs
+++ b/src/write/elf/object.rs
@@ -133,6 +133,7 @@ impl<'a> Object<'a> {
             Architecture::X86_64_X32 => true,
             Architecture::Hexagon => true,
             Architecture::LoongArch64 => true,
+            Architecture::M68k => false,
             Architecture::Mips => false,
             Architecture::Mips64 => true,
             Architecture::Msp430 => true,
@@ -260,6 +261,16 @@ impl<'a> Object<'a> {
                 (K::PltRelative, E::LoongArchBranch, 26) => elf::R_LARCH_B26,
                 _ => return unsupported_reloc(),
             },
+            Architecture::M68k => match (dbg!(kind), encoding, size) {
+                (RelocationKind::Absolute, _, 8) => elf::R_68K_8,
+                (RelocationKind::Absolute, _, 16) => elf::R_68K_16,
+                (RelocationKind::Absolute, _, 32) => elf::R_68K_32,
+                (RelocationKind::Relative, _, 16) => elf::R_68K_PC16,
+                (RelocationKind::Relative, _, 32) => elf::R_68K_PC32,
+                _ => {
+                    return Err(Error(format!("unimplemented relocation {:?}", reloc)));
+                }
+            },
             Architecture::Mips | Architecture::Mips64 => match (kind, encoding, size) {
                 (K::Absolute, _, 16) => elf::R_MIPS_16,
                 (K::Absolute, _, 32) => elf::R_MIPS_32,
@@ -543,6 +554,7 @@ impl<'a> Object<'a> {
             (Architecture::X86_64_X32, None) => elf::EM_X86_64,
             (Architecture::Hexagon, None) => elf::EM_HEXAGON,
             (Architecture::LoongArch64, None) => elf::EM_LOONGARCH,
+            (Architecture::M68k, None) => elf::EM_68K,
             (Architecture::Mips, None) => elf::EM_MIPS,
             (Architecture::Mips64, None) => elf::EM_MIPS,
             (Architecture::Msp430, None) => elf::EM_MSP430,