GH-126910: reserve FP on AArch64 when generating JIT stencils (GH-146520)

diegorusso · web-flow · commit 6763d26b2ba5 · 2026-03-28T01:51:51.000+08:00
diff --git a/Misc/NEWS.d/next/Core_and_Builtins/2026-03-27-17-14-18.gh-issue-126910.hooVFQ.rst b/Misc/NEWS.d/next/Core_and_Builtins/2026-03-27-17-14-18.gh-issue-126910.hooVFQ.rst
@@ -0,0 +1 @@
+Set frame pointers in ``aarch64-unknown-linux-gnu`` JIT code, allowing most native profilers and debuggers to unwind through them. Patch by Diego Russo
diff --git a/Tools/jit/_targets.py b/Tools/jit/_targets.py
@@ -593,7 +593,9 @@ def get_target(host: str) -> _COFF32 | _COFF64 | _ELF | _MachO:
         # -mno-outline-atomics: Keep intrinsics from being emitted.
         args = ["-fpic", "-mno-outline-atomics", "-fno-plt"]
         optimizer = _optimizers.OptimizerAArch64
-        target = _ELF(host, condition, args=args, optimizer=optimizer)
+        target = _ELF(
+            host, condition, args=args, optimizer=optimizer, frame_pointers=True
+        )
     elif re.fullmatch(r"i686-pc-windows-msvc", host):
         host = "i686-pc-windows-msvc"
         condition = "defined(_M_IX86)"

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
	`1`	+Set frame pointers in ``aarch64-unknown-linux-gnu`` JIT code, allowing most native profilers and debuggers to unwind through them. Patch by Diego Russo