[binutils-gdb] gdb: return after stack alignment skip if current_pc is reached

[Andrew Burgess]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=70d93c10482c13c5480175f18dad0bddc8d551d9

commit 70d93c10482c13c5480175f18dad0bddc8d551d9
Author: Pawel Kupczak <pawel.kupczak@intel.com>
Date:   Tue Jun 17 14:08:16 2025 +0000

    gdb: return after stack alignment skip if current_pc is reached
    
    Make sure we bail out early from amd64_analyze_prologue if CURRENT_PC
    is reached to avoid unnecessary call to amd64_analyze_frame_setup.
    
    Approved-By: Andrew Burgess <aburgess@redhat.com>

Diff:
---
 gdb/amd64-tdep.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/gdb/amd64-tdep.c b/gdb/amd64-tdep.c
index 7c3f5c2808a..ec15189883e 100644
--- a/gdb/amd64-tdep.c
+++ b/gdb/amd64-tdep.c
@@ -2591,6 +2591,9 @@ amd64_analyze_prologue (gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR current_pc,
   else
     pc = amd64_analyze_stack_align (pc, current_pc, cache);
 
+  if (current_pc <= pc)
+    return current_pc;
+
   return amd64_analyze_frame_setup (gdbarch, pc, current_pc, cache);
 }