From a6d386a393a51abde63a803a39fc17eec65e35f1 Mon Sep 17 00:00:00 2001
From: Gillou68310 <gilles.siberlin@outlook.com>
Date: Mon, 10 Feb 2025 09:20:22 +0100
Subject: [PATCH] Rework
 https://github.com/simonlindholm/asm-differ/commit/ea176989620cef521198071a1aa56c7ede86be5f
 using pre_process

---
 diff.py | 29 +++++++++++++++++++----------
 1 file changed, 19 insertions(+), 10 deletions(-)

diff --git a/diff.py b/diff.py
index 2b8f13e..22597a8 100755
--- a/diff.py
+++ b/diff.py
@@ -2032,6 +2032,24 @@ def _normalize_adrp_differences(self, mnemonic: str, row: str) -> str:
 
 
 class AsmProcessorX86(AsmProcessor):
+    def pre_process(
+        self, mnemonic: str, args: str, next_row: Optional[str], comment: Optional[str]
+    ) -> Tuple[str, str]:
+        if (
+            comment is not None
+            and (
+                next_row is None
+                or re.search(self.config.arch.re_reloc, next_row) is None
+            )
+            and mnemonic == "call"
+        ):
+            # if the mnemonic is call and the comment doesn't match
+            # <.text+0x...> replace the args with the contents of the comment
+            if re.search(r"<.+\+0x[0-9a-fA-F]+>", comment) is None:
+                args = comment[1:-1]
+
+        return mnemonic, args
+    
     def process_reloc(self, row: str, prev: str) -> Tuple[str, Optional[str]]:
         if "WRTSEG" in row:  # ignore WRTSEG (watcom)
             return prev, None
@@ -2049,7 +2067,7 @@ def process_reloc(self, row: str, prev: str) -> Tuple[str, Optional[str]]:
         # Example call a2f
         # Example call *0
         # Example jmp  64
-        elif mnemonic in X86_BRANCH_INSTRUCTIONS:
+        elif mnemonic in X86_BRANCH_INSTRUCTIONS or 'call' in mnemonic:
             addr_imm = re.search(r"(^|(?<=\*)|(?<=\*\%cs\:))[0-9a-f]+", args)
 
         # Direct use of reloc
@@ -2351,7 +2369,6 @@ class ArchSettings:
 }
 
 X86_BRANCH_INSTRUCTIONS = {
-    "call",
     "jmp",
     "ljmp",
     "ja",
@@ -2930,14 +2947,6 @@ def process(dump: str, config: Config) -> List[Line]:
                 break
             i += 1
 
-        # Example call 0 <func_name>
-        if arch.name is "x86" and mnemonic == "call" and comment and symbol is None:
-            addr_imm = re.search(r"(?:0x)?0+$", original)
-            if addr_imm is not None:
-                start, end = addr_imm.span()
-                symbol = comment[1 : len(comment) - 1]
-                original = original[:start] + symbol
-
         is_text_relative_j = False
         if (
             arch.name in MIPS_ARCH_NAMES