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-rw-r--r--meta/recipes-bsp/opensbi/files/0001-build-Use-ffreestanding.patch28
1 files changed, 28 insertions, 0 deletions
diff --git a/meta/recipes-bsp/opensbi/files/0001-build-Use-ffreestanding.patch b/meta/recipes-bsp/opensbi/files/0001-build-Use-ffreestanding.patch
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+++ b/meta/recipes-bsp/opensbi/files/0001-build-Use-ffreestanding.patch
@@ -0,0 +1,28 @@
1From efa39afecedf75a1f3154c39507bdde2810bc140 Mon Sep 17 00:00:00 2001
2From: Khem Raj <raj.khem@gmail.com>
3Date: Mon, 6 Jan 2020 18:21:02 -0800
4Subject: [PATCH] build: Use -ffreestanding
5
6this is a stand-alone/baremetal application, therefore demanding
7-ffreestanding would help it compile with hosted toolchains e.g. ( linux
8toolchains ), it also ensures that it won't be using platform
9optimizations like inlining mem* str* functions which gcc might decide
10especially with wrapper string functions in opensbi code
11
12Upstream-Status: Accepted [https://github.com/riscv/opensbi/commit/049ad0b3877352527ab470eba33bc767e9b54961]
13Signed-off-by: Khem Raj <raj.khem@gmail.com>
14---
15 Makefile | 2 +-
16 1 file changed, 1 insertion(+), 1 deletion(-)
17
18--- a/Makefile
19+++ b/Makefile
20@@ -159,7 +159,7 @@ GENFLAGS += $(libsbiutils-genflags-y)
21 GENFLAGS += $(platform-genflags-y)
22 GENFLAGS += $(firmware-genflags-y)
23
24-CFLAGS = -g -Wall -Werror -nostdlib -fno-strict-aliasing -O2
25+CFLAGS = -g -Wall -Werror -ffreestanding -nostdlib -fno-strict-aliasing -O2
26 CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls
27 CFLAGS += -mno-save-restore -mstrict-align
28 CFLAGS += -mcmodel=$(PLATFORM_RISCV_CODE_MODEL)