diff -up firefox-140.0/python/mozbuild/mozbuild/frontend/context.py.build-rhel7-nasm-dwarf firefox-140.0/python/mozbuild/mozbuild/frontend/context.py --- firefox-140.0/python/mozbuild/mozbuild/frontend/context.py.build-rhel7-nasm-dwarf 2025-06-02 15:26:51.000000000 +0200 +++ firefox-140.0/python/mozbuild/mozbuild/frontend/context.py 2025-06-12 12:09:56.398728745 +0200 @@ -417,7 +417,7 @@ class AsmFlags(BaseCompileFlags): if self._context.config.substs.get("OS_ARCH") == "WINNT": debug_flags += ["-F", "cv8"] elif self._context.config.substs.get("OS_ARCH") != "Darwin": - debug_flags += ["-F", "dwarf"] + debug_flags += ["-F", "elf32"] elif self._context.config.substs.get("CC_TYPE") == "clang-cl": if self._context.config.substs.get("TARGET_CPU") == "aarch64": # armasm64 accepts a paucity of options compared to ml/ml64.