From 3c0c531c5336fa5e668136c9d2b184aefcb4a269 Mon Sep 17 00:00:00 2001
From: Nikita Smith <git.nikita.smith@gmail.com>
Date: Tue, 23 Sep 2025 06:23:31 -0700
Subject: [PATCH] reloc helper

---
 src/coff/coff.c | 15 +++++++++++++++
 src/coff/coff.h |  2 ++
 2 files changed, 17 insertions(+)

diff --git a/src/coff/coff.c b/src/coff/coff.c
index a37bc009..eef1c129 100644
--- a/src/coff/coff.c
+++ b/src/coff/coff.c
@@ -103,6 +103,21 @@ coff_read_symbol_name(String8 string_table, COFF_SymbolName *name)
   return name_str;
 }
 
+internal U64
+coff_is_addr_reloc(COFF_MachineType machine, U32 type)
+{
+  U64 is_addr = 0;
+  switch (machine) {
+  case COFF_MachineType_Unknown: is_addr = 0; break;
+  case COFF_MachineType_X64: {
+    if (type == COFF_Reloc_X64_Addr32)      is_addr = 4;
+    else if (type == COFF_Reloc_X64_Addr64) is_addr = 8;
+  } break;
+  default: NotImplemented; break;
+  }
+  return is_addr;
+}
+
 internal U64
 coff_apply_size_from_reloc_x64(COFF_Reloc_X64 x)
 {
diff --git a/src/coff/coff.h b/src/coff/coff.h
index 69b72ff3..4adff448 100644
--- a/src/coff/coff.h
+++ b/src/coff/coff.h
@@ -601,6 +601,8 @@ internal String8 coff_read_symbol_name(String8 string_table, COFF_SymbolName *na
 ////////////////////////////////
 // Reloc
 
+internal U64 coff_is_addr_reloc(COFF_MachineType machine, U32 type);
+
 internal U64 coff_apply_size_from_reloc_x64(COFF_Reloc_X64 x);
 internal U64 coff_apply_size_from_reloc_x86(COFF_Reloc_X86 x);