mirror of
https://github.com/torvalds/linux.git
synced 2024-11-15 08:31:55 +00:00
30b50aa612
commit 338d4f49d6
("arm64: kernel: Add support for Privileged Access Never") includes sysreg.h
into futex.h and uaccess.h. But, the inline assembly used by asm/sysreg.h is
incompatible with llvm so it will cause BPF samples build failure for ARM64.
Since sysreg.h is useless for BPF samples, just exclude it from Makefile via
defining __ASM_SYSREG_H.
Signed-off-by: Yang Shi <yang.shi@linaro.org>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
80 lines
2.7 KiB
Makefile
80 lines
2.7 KiB
Makefile
# kbuild trick to avoid linker error. Can be omitted if a module is built.
|
|
obj- := dummy.o
|
|
|
|
# List of programs to build
|
|
hostprogs-y := test_verifier test_maps
|
|
hostprogs-y += sock_example
|
|
hostprogs-y += fds_example
|
|
hostprogs-y += sockex1
|
|
hostprogs-y += sockex2
|
|
hostprogs-y += sockex3
|
|
hostprogs-y += tracex1
|
|
hostprogs-y += tracex2
|
|
hostprogs-y += tracex3
|
|
hostprogs-y += tracex4
|
|
hostprogs-y += tracex5
|
|
hostprogs-y += tracex6
|
|
hostprogs-y += trace_output
|
|
hostprogs-y += lathist
|
|
|
|
test_verifier-objs := test_verifier.o libbpf.o
|
|
test_maps-objs := test_maps.o libbpf.o
|
|
sock_example-objs := sock_example.o libbpf.o
|
|
fds_example-objs := bpf_load.o libbpf.o fds_example.o
|
|
sockex1-objs := bpf_load.o libbpf.o sockex1_user.o
|
|
sockex2-objs := bpf_load.o libbpf.o sockex2_user.o
|
|
sockex3-objs := bpf_load.o libbpf.o sockex3_user.o
|
|
tracex1-objs := bpf_load.o libbpf.o tracex1_user.o
|
|
tracex2-objs := bpf_load.o libbpf.o tracex2_user.o
|
|
tracex3-objs := bpf_load.o libbpf.o tracex3_user.o
|
|
tracex4-objs := bpf_load.o libbpf.o tracex4_user.o
|
|
tracex5-objs := bpf_load.o libbpf.o tracex5_user.o
|
|
tracex6-objs := bpf_load.o libbpf.o tracex6_user.o
|
|
trace_output-objs := bpf_load.o libbpf.o trace_output_user.o
|
|
lathist-objs := bpf_load.o libbpf.o lathist_user.o
|
|
|
|
# Tell kbuild to always build the programs
|
|
always := $(hostprogs-y)
|
|
always += sockex1_kern.o
|
|
always += sockex2_kern.o
|
|
always += sockex3_kern.o
|
|
always += tracex1_kern.o
|
|
always += tracex2_kern.o
|
|
always += tracex3_kern.o
|
|
always += tracex4_kern.o
|
|
always += tracex5_kern.o
|
|
always += tracex6_kern.o
|
|
always += trace_output_kern.o
|
|
always += tcbpf1_kern.o
|
|
always += lathist_kern.o
|
|
|
|
HOSTCFLAGS += -I$(objtree)/usr/include
|
|
|
|
HOSTCFLAGS_bpf_load.o += -I$(objtree)/usr/include -Wno-unused-variable
|
|
HOSTLOADLIBES_fds_example += -lelf
|
|
HOSTLOADLIBES_sockex1 += -lelf
|
|
HOSTLOADLIBES_sockex2 += -lelf
|
|
HOSTLOADLIBES_sockex3 += -lelf
|
|
HOSTLOADLIBES_tracex1 += -lelf
|
|
HOSTLOADLIBES_tracex2 += -lelf
|
|
HOSTLOADLIBES_tracex3 += -lelf
|
|
HOSTLOADLIBES_tracex4 += -lelf -lrt
|
|
HOSTLOADLIBES_tracex5 += -lelf
|
|
HOSTLOADLIBES_tracex6 += -lelf
|
|
HOSTLOADLIBES_trace_output += -lelf -lrt
|
|
HOSTLOADLIBES_lathist += -lelf
|
|
|
|
# point this to your LLVM backend with bpf support
|
|
LLC=$(srctree)/tools/bpf/llvm/bld/Debug+Asserts/bin/llc
|
|
|
|
# asm/sysreg.h inline assmbly used by it is incompatible with llvm.
|
|
# But, ehere is not easy way to fix it, so just exclude it since it is
|
|
# useless for BPF samples.
|
|
$(obj)/%.o: $(src)/%.c
|
|
clang $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(EXTRA_CFLAGS) \
|
|
-D__KERNEL__ -D__ASM_SYSREG_H -Wno-unused-value -Wno-pointer-sign \
|
|
-O2 -emit-llvm -c $< -o -| $(LLC) -march=bpf -filetype=obj -o $@
|
|
clang $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(EXTRA_CFLAGS) \
|
|
-D__KERNEL__ -D__ASM_SYSREG_H -Wno-unused-value -Wno-pointer-sign \
|
|
-O2 -emit-llvm -c $< -o -| $(LLC) -march=bpf -filetype=asm -o $@.s
|