From: Fabrice Fontaine Date: Sun, 30 Aug 2020 19:07:25 +0000 (+0200) Subject: package/am33x-cm3: fix build with gcc 10 X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=f1d95890292392459682d385fbadfec6bf743614;p=buildroot.git package/am33x-cm3: fix build with gcc 10 Fixes: - http://autobuild.buildroot.org/results/a991e6efa012df518ff1bb35017ad2c96c8feedc Signed-off-by: Fabrice Fontaine Signed-off-by: Peter Korsgaard --- diff --git a/package/am33x-cm3/0004-Makefile-add-fno-builtin.patch b/package/am33x-cm3/0004-Makefile-add-fno-builtin.patch new file mode 100644 index 0000000000..7478bd45f3 --- /dev/null +++ b/package/am33x-cm3/0004-Makefile-add-fno-builtin.patch @@ -0,0 +1,41 @@ +From 25fc567ba8a0cd199e48bfa82863247d953784ea Mon Sep 17 00:00:00 2001 +From: Fabrice Fontaine +Date: Sun, 30 Aug 2020 20:59:29 +0200 +Subject: [PATCH] Makefile: add -fno-builtin + +Build with gcc 10 fails on: + +/srv/storage/autobuild/run/instance-2/output-1/host/lib/gcc/arm-buildroot-linux-gnueabihf/10.2.0/../../../../arm-buildroot-linux-gnueabihf/bin/ld: src/foundation/startup.o: in function `reset_handler': +/srv/storage/autobuild/run/instance-2/output-1/build/am33x-cm3-11107db2f1e9e58ee75d4fe9cc38423c9a6e4365/src/foundation/startup.c:177: undefined reference to `memcpy' + +This is due to the fact that gcc 10 replaces the following statement by +a memcpy call: + +*puldest++ = *pulsrc++; + +To fix this build failure, add -fno-builtin + +Fixes: + - http://autobuild.buildroot.org/results/a991e6efa012df518ff1bb35017ad2c96c8feedc + +Signed-off-by: Fabrice Fontaine +--- + Makefile | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/Makefile b/Makefile +index fe3d844..fa24d4b 100644 +--- a/Makefile ++++ b/Makefile +@@ -17,7 +17,7 @@ CFLAGS =-march=armv7-m -mcpu=cortex-m3 -mthumb -nostdlib -Wall -Wundef \ + -Werror-implicit-function-declaration -Wstrict-prototypes \ + -Wdeclaration-after-statement -fno-delete-null-pointer-checks \ + -Wempty-body -fno-strict-overflow -fno-stack-protector \ +- -fno-pie -g -I$(INCLUDES) -O2 ++ -fno-pie -fno-builtin -g -I$(INCLUDES) -O2 + LDFLAGS =-nostartfiles -fno-exceptions -Tfirmware.ld + + EXECUTABLE=am335x-pm-firmware.elf +-- +2.28.0 +