mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-25 16:31:13 +00:00
56 lines
1.8 KiB
Diff
56 lines
1.8 KiB
Diff
|
From 7b00d4a90af1d7bff50833ffe1216cf59592353a Mon Sep 17 00:00:00 2001
|
||
|
|
From: Andre Heider <a.heider@gmail.com>
|
||
|
|
Date: Wed, 18 Jan 2023 22:42:28 +0100
|
||
|
|
Subject: [PATCH] Add BPF_LDFLAGS to allow overwriting llc's -march argument
|
||
|
|
|
||
|
|
The argument to clang's -target isn't necessarily the same as to
|
||
|
|
llc's -march.
|
||
|
|
|
||
|
|
Analogue to BPF_CFLAGS, introduce BPF_LDFLAGS to allow e.g.:
|
||
|
|
BPF_TARGET="mipsel-linux-gnu" BPF_LDFLAGS="-march=bpfel -mcpu=v3"
|
||
|
|
|
||
|
|
Signed-off-by: Andre Heider <a.heider@gmail.com>
|
||
|
|
---
|
||
|
|
configure | 2 ++
|
||
|
|
lib/common.mk | 2 +-
|
||
|
|
lib/libxdp/Makefile | 2 +-
|
||
|
|
3 files changed, 4 insertions(+), 2 deletions(-)
|
||
|
|
|
||
|
|
--- a/configure
|
||
|
|
+++ b/configure
|
||
|
|
@@ -17,10 +17,12 @@ check_opts()
|
||
|
|
: ${DYNAMIC_LIBXDP:=0}
|
||
|
|
: ${MAX_DISPATCHER_ACTIONS:=10}
|
||
|
|
: ${BPF_TARGET:=bpf}
|
||
|
|
+ : ${BPF_LDFLAGS:=-march=$(BPF_TARGET)}
|
||
|
|
echo "PRODUCTION:=${PRODUCTION}" >>$CONFIG
|
||
|
|
echo "DYNAMIC_LIBXDP:=${DYNAMIC_LIBXDP}" >>$CONFIG
|
||
|
|
echo "MAX_DISPATCHER_ACTIONS:=${MAX_DISPATCHER_ACTIONS}" >>$CONFIG
|
||
|
|
echo "BPF_TARGET:=${BPF_TARGET}" >>$CONFIG
|
||
|
|
+ echo "BPF_LDFLAGS:=${BPF_LDFLAGS}" >>$CONFIG
|
||
|
|
}
|
||
|
|
|
||
|
|
find_tool()
|
||
|
|
--- a/lib/common.mk
|
||
|
|
+++ b/lib/common.mk
|
||
|
|
@@ -115,7 +115,7 @@ $(XDP_OBJ): %.o: %.c $(KERN_USER_H) $(EX
|
||
|
|
-Werror \
|
||
|
|
$(BPF_CFLAGS) \
|
||
|
|
-O2 -emit-llvm -c -g -o ${@:.o=.ll} $<
|
||
|
|
- $(QUIET_LLC)$(LLC) -march=$(BPF_TARGET) -filetype=obj -o $@ ${@:.o=.ll}
|
||
|
|
+ $(QUIET_LLC)$(LLC) $(BPF_LDFLAGS) -filetype=obj -o $@ ${@:.o=.ll}
|
||
|
|
|
||
|
|
.PHONY: man
|
||
|
|
ifeq ($(EMACS),)
|
||
|
|
--- a/lib/libxdp/Makefile
|
||
|
|
+++ b/lib/libxdp/Makefile
|
||
|
|
@@ -146,7 +146,7 @@ $(XDP_OBJS): %.o: %.c $(BPF_HEADERS) $(L
|
||
|
|
-Werror \
|
||
|
|
$(BPF_CFLAGS) \
|
||
|
|
-O2 -emit-llvm -c -g -o ${@:.o=.ll} $<
|
||
|
|
- $(QUIET_LLC)$(LLC) -march=$(BPF_TARGET) -filetype=obj -o $@ ${@:.o=.ll}
|
||
|
|
+ $(QUIET_LLC)$(LLC) $(BPF_LDFLAGS) -filetype=obj -o $@ ${@:.o=.ll}
|
||
|
|
|
||
|
|
.PHONY: man
|
||
|
|
ifeq ($(EMACS),)
|