diff options
Diffstat (limited to 'samples/bpf')
| -rw-r--r-- | samples/bpf/Makefile | 19 | ||||
| -rw-r--r-- | samples/bpf/asm_goto_workaround.h | 8 | ||||
| -rw-r--r-- | samples/bpf/syscall_tp_kern.c | 15 |
3 files changed, 32 insertions, 10 deletions
diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile index 4ccf423603..933f6c3fe6 100644 --- a/samples/bpf/Makefile +++ b/samples/bpf/Makefile @@ -150,6 +150,9 @@ always-y += ibumad_kern.o always-y += hbm_out_kern.o always-y += hbm_edt_kern.o +TPROGS_CFLAGS = $(TPROGS_USER_CFLAGS) +TPROGS_LDFLAGS = $(TPROGS_USER_LDFLAGS) + ifeq ($(ARCH), arm) # Strip all except -D__LINUX_ARM_ARCH__ option needed to handle linux # headers when arm instruction set identification is requested. @@ -169,12 +172,16 @@ endif TPROGS_CFLAGS += -Wall -O2 TPROGS_CFLAGS += -Wmissing-prototypes TPROGS_CFLAGS += -Wstrict-prototypes +TPROGS_CFLAGS += $(call try-run,\ + printf "int main() { return 0; }" |\ + $(CC) -Werror -fsanitize=bounds -x c - -o "$$TMP",-fsanitize=bounds,) TPROGS_CFLAGS += -I$(objtree)/usr/include TPROGS_CFLAGS += -I$(srctree)/tools/testing/selftests/bpf/ TPROGS_CFLAGS += -I$(LIBBPF_INCLUDE) TPROGS_CFLAGS += -I$(srctree)/tools/include TPROGS_CFLAGS += -I$(srctree)/tools/perf +TPROGS_CFLAGS += -I$(srctree)/tools/lib TPROGS_CFLAGS += -DHAVE_ATTR_TEST=0 ifdef SYSROOT @@ -247,14 +254,15 @@ clean: $(LIBBPF): $(wildcard $(LIBBPF_SRC)/*.[ch] $(LIBBPF_SRC)/Makefile) | $(LIBBPF_OUTPUT) # Fix up variables inherited from Kbuild that tools/ build system won't like $(MAKE) -C $(LIBBPF_SRC) RM='rm -rf' EXTRA_CFLAGS="$(TPROGS_CFLAGS)" \ - LDFLAGS=$(TPROGS_LDFLAGS) srctree=$(BPF_SAMPLES_PATH)/../../ \ + LDFLAGS="$(TPROGS_LDFLAGS)" srctree=$(BPF_SAMPLES_PATH)/../../ \ O= OUTPUT=$(LIBBPF_OUTPUT)/ DESTDIR=$(LIBBPF_DESTDIR) prefix= \ $@ install_headers BPFTOOLDIR := $(TOOLS_PATH)/bpf/bpftool BPFTOOL_OUTPUT := $(abspath $(BPF_SAMPLES_PATH))/bpftool -BPFTOOL := $(BPFTOOL_OUTPUT)/bootstrap/bpftool -$(BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) | $(BPFTOOL_OUTPUT) +DEFAULT_BPFTOOL := $(BPFTOOL_OUTPUT)/bootstrap/bpftool +BPFTOOL ?= $(DEFAULT_BPFTOOL) +$(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) | $(BPFTOOL_OUTPUT) $(MAKE) -C $(BPFTOOLDIR) srctree=$(BPF_SAMPLES_PATH)/../../ \ OUTPUT=$(BPFTOOL_OUTPUT)/ bootstrap @@ -312,8 +320,11 @@ XDP_SAMPLE_CFLAGS += -Wall -O2 \ -I$(LIBBPF_INCLUDE) \ -I$(src)/../../tools/testing/selftests/bpf -$(obj)/$(XDP_SAMPLE): TPROGS_CFLAGS = $(XDP_SAMPLE_CFLAGS) +$(obj)/$(XDP_SAMPLE): TPROGS_CFLAGS = $(XDP_SAMPLE_CFLAGS) $(TPROGS_USER_CFLAGS) $(obj)/$(XDP_SAMPLE): $(src)/xdp_sample_user.h $(src)/xdp_sample_shared.h +# Override includes for trace_helpers.o because __must_check won't be defined +# in our include path. +$(obj)/$(TRACE_HELPERS): TPROGS_CFLAGS := $(TPROGS_CFLAGS) -D__must_check= -include $(BPF_SAMPLES_PATH)/Makefile.target diff --git a/samples/bpf/asm_goto_workaround.h b/samples/bpf/asm_goto_workaround.h index 7048bb3594..634e81d83e 100644 --- a/samples/bpf/asm_goto_workaround.h +++ b/samples/bpf/asm_goto_workaround.h @@ -4,14 +4,14 @@ #define __ASM_GOTO_WORKAROUND_H /* - * This will bring in asm_volatile_goto and asm_inline macro definitions + * This will bring in asm_goto_output and asm_inline macro definitions * if enabled by compiler and config options. */ #include <linux/types.h> -#ifdef asm_volatile_goto -#undef asm_volatile_goto -#define asm_volatile_goto(x...) asm volatile("invalid use of asm_volatile_goto") +#ifdef asm_goto_output +#undef asm_goto_output +#define asm_goto_output(x...) asm volatile("invalid use of asm_goto_output") #endif /* diff --git a/samples/bpf/syscall_tp_kern.c b/samples/bpf/syscall_tp_kern.c index 090fecfe64..58fef969a6 100644 --- a/samples/bpf/syscall_tp_kern.c +++ b/samples/bpf/syscall_tp_kern.c @@ -4,6 +4,7 @@ #include <uapi/linux/bpf.h> #include <bpf/bpf_helpers.h> +#if !defined(__aarch64__) struct syscalls_enter_open_args { unsigned long long unused; long syscall_nr; @@ -11,6 +12,7 @@ struct syscalls_enter_open_args { long flags; long mode; }; +#endif struct syscalls_exit_open_args { unsigned long long unused; @@ -18,6 +20,15 @@ struct syscalls_exit_open_args { long ret; }; +struct syscalls_enter_open_at_args { + unsigned long long unused; + long syscall_nr; + long long dfd; + long filename_ptr; + long flags; + long mode; +}; + struct { __uint(type, BPF_MAP_TYPE_ARRAY); __type(key, u32); @@ -54,14 +65,14 @@ int trace_enter_open(struct syscalls_enter_open_args *ctx) #endif SEC("tracepoint/syscalls/sys_enter_openat") -int trace_enter_open_at(struct syscalls_enter_open_args *ctx) +int trace_enter_open_at(struct syscalls_enter_open_at_args *ctx) { count(&enter_open_map); return 0; } SEC("tracepoint/syscalls/sys_enter_openat2") -int trace_enter_open_at2(struct syscalls_enter_open_args *ctx) +int trace_enter_open_at2(struct syscalls_enter_open_at_args *ctx) { count(&enter_open_map); return 0; |