From 17729d44daf879e015950b0e9636afceefea0a59 Mon Sep 17 00:00:00 2001 From: Jessica Clarke <jrtc27@jrtc27.com> Date: Sun, 11 Jul 2021 03:28:24 +0100 Subject: lib: utils: Drop dependency on libgcc by importing part of FreeBSD's libquad We only need libgcc for 64-bit division on RV32. Whilst GCC toolchains bundle libgcc, Clang toolchains tend not to ship libclang_rt.builtins given every compiler is a cross-compiler for every target and so you would need a silly number of builds of it, with only the native library available; only vendor-provided Clang toolchains specifically for bare metal cross-compiling are likely to provide it. Thus, import part of FreeBSD's implementation of the division support functions needed and stop linking against libgcc. Signed-off-by: Jessica Clarke <jrtc27@jrtc27.com> Reviewed-by: Anup Patel <anup.patel@wdc.com> Tested-by: Anup Patel <anup.patel@wdc.com> --- lib/utils/libquad/objects.mk | 14 ++++++++++++++ 1 file changed, 14 insertions(+) create mode 100644 lib/utils/libquad/objects.mk (limited to 'lib/utils/libquad/objects.mk') diff --git a/lib/utils/libquad/objects.mk b/lib/utils/libquad/objects.mk new file mode 100644 index 0000000..5e53cd0 --- /dev/null +++ b/lib/utils/libquad/objects.mk @@ -0,0 +1,14 @@ +# +# SPDX-License-Identifier: BSD-2-Clause +# +# Copyright (c) 2021 Jessica Clarke <jrtc27@jrtc27.com> +# + +ifeq ($(PLATFORM_RISCV_XLEN),32) +libsbiutils-objs-y += libquad/divdi3.o +libsbiutils-objs-y += libquad/moddi3.o +libsbiutils-objs-y += libquad/qdivrem.o +libsbiutils-objs-y += libquad/udivdi3.o +libsbiutils-objs-y += libquad/umoddi3.o +libsbiutils-genflags-y += -I$(libsbiutils_dir)/libquad/include +endif -- cgit v1.2.3