diff --git a/src/read/coff/relocation.rs b/src/read/coff/relocation.rs
index 41a1fbcc..dfc5b176 100644
--- a/src/read/coff/relocation.rs
+++ b/src/read/coff/relocation.rs
@@ -34,58 +34,64 @@ impl<'data, 'file, R: ReadRef<'data>, Coff: CoffHeader> Iterator
         self.iter.next().map(|relocation| {
             let typ = relocation.typ.get(LE);
             let flags = RelocationFlags::Coff { typ };
-            let (kind, size, addend) = match self.file.header.machine() {
+            let (kind, encoding, size, addend) = match self.file.header.machine() {
                 pe::IMAGE_FILE_MACHINE_ARMNT => match typ {
-                    pe::IMAGE_REL_ARM_ADDR32 => (RelocationKind::Absolute, 32, 0),
-                    pe::IMAGE_REL_ARM_ADDR32NB => (RelocationKind::ImageOffset, 32, 0),
-                    pe::IMAGE_REL_ARM_REL32 => (RelocationKind::Relative, 32, -4),
-                    pe::IMAGE_REL_ARM_SECTION => (RelocationKind::SectionIndex, 16, 0),
-                    pe::IMAGE_REL_ARM_SECREL => (RelocationKind::SectionOffset, 32, 0),
-                    _ => (RelocationKind::Unknown, 0, 0),
+                    pe::IMAGE_REL_ARM_ADDR32 => (RelocationKind::Absolute, None, 32, 0),
+                    pe::IMAGE_REL_ARM_ADDR32NB => (RelocationKind::ImageOffset, None, 32, 0),
+                    pe::IMAGE_REL_ARM_REL32 => (RelocationKind::Relative, None, 32, -4),
+                    pe::IMAGE_REL_ARM_SECTION => (RelocationKind::SectionIndex, None, 16, 0),
+                    pe::IMAGE_REL_ARM_SECREL => (RelocationKind::SectionOffset, None, 32, 0),
+                    _ => (RelocationKind::Unknown, None, 0, 0),
                 },
                 pe::IMAGE_FILE_MACHINE_ARM64 | pe::IMAGE_FILE_MACHINE_ARM64EC => match typ {
-                    pe::IMAGE_REL_ARM64_ADDR32 => (RelocationKind::Absolute, 32, 0),
-                    pe::IMAGE_REL_ARM64_ADDR32NB => (RelocationKind::ImageOffset, 32, 0),
-                    pe::IMAGE_REL_ARM64_SECREL => (RelocationKind::SectionOffset, 32, 0),
-                    pe::IMAGE_REL_ARM64_SECTION => (RelocationKind::SectionIndex, 16, 0),
-                    pe::IMAGE_REL_ARM64_ADDR64 => (RelocationKind::Absolute, 64, 0),
-                    pe::IMAGE_REL_ARM64_REL32 => (RelocationKind::Relative, 32, -4),
-                    _ => (RelocationKind::Unknown, 0, 0),
+                    pe::IMAGE_REL_ARM64_ADDR32 => (RelocationKind::Absolute, None, 32, 0),
+                    pe::IMAGE_REL_ARM64_ADDR32NB => (RelocationKind::ImageOffset, None, 32, 0),
+                    pe::IMAGE_REL_ARM64_SECREL => (RelocationKind::SectionOffset, None, 32, 0),
+                    pe::IMAGE_REL_ARM64_SECTION => (RelocationKind::SectionIndex, None, 16, 0),
+                    pe::IMAGE_REL_ARM64_ADDR64 => (RelocationKind::Absolute, None, 64, 0),
+                    pe::IMAGE_REL_ARM64_REL32 => (RelocationKind::Relative, None, 32, -4),
+                    pe::IMAGE_REL_ARM64_BRANCH26 => (
+                        RelocationKind::Relative,
+                        Some(RelocationEncoding::AArch64Call),
+                        26,
+                        0,
+                    ),
+                    _ => (RelocationKind::Unknown, None, 0, 0),
                 },
                 pe::IMAGE_FILE_MACHINE_I386 => match typ {
-                    pe::IMAGE_REL_I386_DIR16 => (RelocationKind::Absolute, 16, 0),
-                    pe::IMAGE_REL_I386_REL16 => (RelocationKind::Relative, 16, 0),
-                    pe::IMAGE_REL_I386_DIR32 => (RelocationKind::Absolute, 32, 0),
-                    pe::IMAGE_REL_I386_DIR32NB => (RelocationKind::ImageOffset, 32, 0),
-                    pe::IMAGE_REL_I386_SECTION => (RelocationKind::SectionIndex, 16, 0),
-                    pe::IMAGE_REL_I386_SECREL => (RelocationKind::SectionOffset, 32, 0),
-                    pe::IMAGE_REL_I386_SECREL7 => (RelocationKind::SectionOffset, 7, 0),
-                    pe::IMAGE_REL_I386_REL32 => (RelocationKind::Relative, 32, -4),
-                    _ => (RelocationKind::Unknown, 0, 0),
+                    pe::IMAGE_REL_I386_DIR16 => (RelocationKind::Absolute, None, 16, 0),
+                    pe::IMAGE_REL_I386_REL16 => (RelocationKind::Relative, None, 16, 0),
+                    pe::IMAGE_REL_I386_DIR32 => (RelocationKind::Absolute, None, 32, 0),
+                    pe::IMAGE_REL_I386_DIR32NB => (RelocationKind::ImageOffset, None, 32, 0),
+                    pe::IMAGE_REL_I386_SECTION => (RelocationKind::SectionIndex, None, 16, 0),
+                    pe::IMAGE_REL_I386_SECREL => (RelocationKind::SectionOffset, None, 32, 0),
+                    pe::IMAGE_REL_I386_SECREL7 => (RelocationKind::SectionOffset, None, 7, 0),
+                    pe::IMAGE_REL_I386_REL32 => (RelocationKind::Relative, None, 32, -4),
+                    _ => (RelocationKind::Unknown, None, 0, 0),
                 },
                 pe::IMAGE_FILE_MACHINE_AMD64 => match typ {
-                    pe::IMAGE_REL_AMD64_ADDR64 => (RelocationKind::Absolute, 64, 0),
-                    pe::IMAGE_REL_AMD64_ADDR32 => (RelocationKind::Absolute, 32, 0),
-                    pe::IMAGE_REL_AMD64_ADDR32NB => (RelocationKind::ImageOffset, 32, 0),
-                    pe::IMAGE_REL_AMD64_REL32 => (RelocationKind::Relative, 32, -4),
-                    pe::IMAGE_REL_AMD64_REL32_1 => (RelocationKind::Relative, 32, -5),
-                    pe::IMAGE_REL_AMD64_REL32_2 => (RelocationKind::Relative, 32, -6),
-                    pe::IMAGE_REL_AMD64_REL32_3 => (RelocationKind::Relative, 32, -7),
-                    pe::IMAGE_REL_AMD64_REL32_4 => (RelocationKind::Relative, 32, -8),
-                    pe::IMAGE_REL_AMD64_REL32_5 => (RelocationKind::Relative, 32, -9),
-                    pe::IMAGE_REL_AMD64_SECTION => (RelocationKind::SectionIndex, 16, 0),
-                    pe::IMAGE_REL_AMD64_SECREL => (RelocationKind::SectionOffset, 32, 0),
-                    pe::IMAGE_REL_AMD64_SECREL7 => (RelocationKind::SectionOffset, 7, 0),
-                    _ => (RelocationKind::Unknown, 0, 0),
+                    pe::IMAGE_REL_AMD64_ADDR64 => (RelocationKind::Absolute, None, 64, 0),
+                    pe::IMAGE_REL_AMD64_ADDR32 => (RelocationKind::Absolute, None, 32, 0),
+                    pe::IMAGE_REL_AMD64_ADDR32NB => (RelocationKind::ImageOffset, None, 32, 0),
+                    pe::IMAGE_REL_AMD64_REL32 => (RelocationKind::Relative, None, 32, -4),
+                    pe::IMAGE_REL_AMD64_REL32_1 => (RelocationKind::Relative, None, 32, -5),
+                    pe::IMAGE_REL_AMD64_REL32_2 => (RelocationKind::Relative, None, 32, -6),
+                    pe::IMAGE_REL_AMD64_REL32_3 => (RelocationKind::Relative, None, 32, -7),
+                    pe::IMAGE_REL_AMD64_REL32_4 => (RelocationKind::Relative, None, 32, -8),
+                    pe::IMAGE_REL_AMD64_REL32_5 => (RelocationKind::Relative, None, 32, -9),
+                    pe::IMAGE_REL_AMD64_SECTION => (RelocationKind::SectionIndex, None, 16, 0),
+                    pe::IMAGE_REL_AMD64_SECREL => (RelocationKind::SectionOffset, None, 32, 0),
+                    pe::IMAGE_REL_AMD64_SECREL7 => (RelocationKind::SectionOffset, None, 7, 0),
+                    _ => (RelocationKind::Unknown, None, 0, 0),
                 },
-                _ => (RelocationKind::Unknown, 0, 0),
+                _ => (RelocationKind::Unknown, None, 0, 0),
             };
             let target = RelocationTarget::Symbol(relocation.symbol());
             (
                 u64::from(relocation.virtual_address.get(LE)),
                 Relocation {
                     kind,
-                    encoding: RelocationEncoding::Generic,
+                    encoding: encoding.unwrap_or(RelocationEncoding::Generic),
                     size,
                     target,
                     addend,
diff --git a/src/write/coff/object.rs b/src/write/coff/object.rs
index 77f1fbb4..017ece64 100644
--- a/src/write/coff/object.rs
+++ b/src/write/coff/object.rs
@@ -82,7 +82,7 @@ impl<'a> Object<'a> {
     }
 
     pub(crate) fn coff_translate_relocation(&mut self, reloc: &mut Relocation) -> Result<()> {
-        let (mut kind, _encoding, size) = if let RelocationFlags::Generic {
+        let (mut kind, encoding, size) = if let RelocationFlags::Generic {
             kind,
             encoding,
             size,
@@ -148,13 +148,16 @@ impl<'a> Object<'a> {
                     return Err(Error(format!("unimplemented relocation {:?}", reloc)));
                 }
             },
-            Architecture::Aarch64 => match (kind, size) {
-                (RelocationKind::Absolute, 32) => coff::IMAGE_REL_ARM64_ADDR32,
-                (RelocationKind::ImageOffset, 32) => coff::IMAGE_REL_ARM64_ADDR32NB,
-                (RelocationKind::SectionIndex, 16) => coff::IMAGE_REL_ARM64_SECTION,
-                (RelocationKind::SectionOffset, 32) => coff::IMAGE_REL_ARM64_SECREL,
-                (RelocationKind::Absolute, 64) => coff::IMAGE_REL_ARM64_ADDR64,
-                (RelocationKind::Relative, 32) => coff::IMAGE_REL_ARM64_REL32,
+            Architecture::Aarch64 => match (kind, encoding, size) {
+                (RelocationKind::Absolute, _, 32) => coff::IMAGE_REL_ARM64_ADDR32,
+                (RelocationKind::ImageOffset, _, 32) => coff::IMAGE_REL_ARM64_ADDR32NB,
+                (RelocationKind::SectionIndex, _, 16) => coff::IMAGE_REL_ARM64_SECTION,
+                (RelocationKind::SectionOffset, _, 32) => coff::IMAGE_REL_ARM64_SECREL,
+                (RelocationKind::Absolute, _, 64) => coff::IMAGE_REL_ARM64_ADDR64,
+                (RelocationKind::Relative, _, 32) => coff::IMAGE_REL_ARM64_REL32,
+                (RelocationKind::Relative, RelocationEncoding::AArch64Call, 26) => {
+                    coff::IMAGE_REL_ARM64_BRANCH26
+                }
                 _ => {
                     return Err(Error(format!("unimplemented relocation {:?}", reloc)));
                 }