I just looked into it and created simple patch. Anyone could test it and/or submit upstream? Index: include/clang/Driver/Options.td --- include/clang/Driver/Options.td +++ include/clang/Driver/Options.td @@ -2497,6 +2497,7 @@ defm non_call_exceptions : BooleanFFlag<"non-call-exceptions">, Group<clang_ignored_f_Group>; defm peel_loops : BooleanFFlag<"peel-loops">, Group<clang_ignored_gcc_optimization_f_Group>; defm permissive : BooleanFFlag<"permissive">, Group<clang_ignored_f_Group>; +defm plt : BooleanFFlag<"plt">, Group<clang_ignored_f_Group>; defm prefetch_loop_arrays : BooleanFFlag<"prefetch-loop-arrays">, Group<clang_ignored_gcc_optimization_f_Group>; defm printf : BooleanFFlag<"printf">, Group<clang_ignored_f_Group>; defm profile : BooleanFFlag<"profile">, Group<clang_ignored_f_Group>; Index: test/Driver/clang_f_opts.c --- test/Driver/clang_f_opts.c +++ test/Driver/clang_f_opts.c @@ -275,12 +275,14 @@ // RUN: -fno-fat-lto-objects -ffat-lto-objects \ // RUN: -fno-merge-constants -fmerge-constants \ // RUN: -fno-caller-saves -fcaller-saves \ +// RUN: -fno-plt \ // RUN: -fno-reorder-blocks -freorder-blocks \ // RUN: -fno-schedule-insns2 -fschedule-insns2 \ // RUN: -fno-stack-check \ // RUN: -fno-check-new -fcheck-new \ // RUN: -ffriend-injection \ // RUN: -fno-implement-inlines -fimplement-inlines \ +// RUN: -fplt \ // RUN: -fstack-check \ // RUN: -fforce-addr \ // RUN: -malign-functions=100 \

-------- Original Message -------- Subject: Re: [arch-dev-public] Changing compilation flags From: arch-dev-public@archlinux.org To: Evangelos Foutras <evangelos@foutrelis.com> Daniel Micay <danielmicay@gmail.com>, Public mailing list for Arch Linux development <arch-dev-public@archlinux.org>

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So I think it would be a good idea to flip the default to -z,now in the linker if we"re going to use -fno-plt. I think they"d take a patch for that upstream. Clang issue could be avoided with a 1 line patch adding another no-op flag and they"d take that upstream. It"s harmless to use the slower lazy linking calling convention when -fno-plt is passed. This is literally just +1 LOC for Clang b/c it has a system for adding no-op flags already, which is mostly used for GCC compatibility. It even uses it in cases that are quite dubious like making -fstack- check into a no-op, despite it not just being an optional optimization / code generation change like -fno-plt.