diff options
| author | David S. Miller <davem@davemloft.net> | 2021-02-16 13:14:06 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-02-16 13:14:06 -0800 |
| commit | b8af417e4d93caeefb89bbfbd56ec95dedd8dab5 (patch) | |
| tree | 1c8d22e1aec330238830a43cc8aee0cf768ae1c7 /tools | |
| parent | 9ec5eea5b6acfae7279203097eeec5d02d01d9b7 (diff) | |
| parent | 45159b27637b0fef6d5ddb86fc7c46b13c77960f (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:
====================
pull-request: bpf-next 2021-02-16
The following pull-request contains BPF updates for your *net-next* tree.
There's a small merge conflict between 7eeba1706eba ("tcp: Add receive timestamp
support for receive zerocopy.") from net-next tree and 9cacf81f8161 ("bpf: Remove
extra lock_sock for TCP_ZEROCOPY_RECEIVE") from bpf-next tree. Resolve as follows:
[...]
lock_sock(sk);
err = tcp_zerocopy_receive(sk, &zc, &tss);
err = BPF_CGROUP_RUN_PROG_GETSOCKOPT_KERN(sk, level, optname,
&zc, &len, err);
release_sock(sk);
[...]
We've added 116 non-merge commits during the last 27 day(s) which contain
a total of 156 files changed, 5662 insertions(+), 1489 deletions(-).
The main changes are:
1) Adds support of pointers to types with known size among global function
args to overcome the limit on max # of allowed args, from Dmitrii Banshchikov.
2) Add bpf_iter for task_vma which can be used to generate information similar
to /proc/pid/maps, from Song Liu.
3) Enable bpf_{g,s}etsockopt() from all sock_addr related program hooks. Allow
rewriting bind user ports from BPF side below the ip_unprivileged_port_start
range, both from Stanislav Fomichev.
4) Prevent recursion on fentry/fexit & sleepable programs and allow map-in-map
as well as per-cpu maps for the latter, from Alexei Starovoitov.
5) Add selftest script to run BPF CI locally. Also enable BPF ringbuffer
for sleepable programs, both from KP Singh.
6) Extend verifier to enable variable offset read/write access to the BPF
program stack, from Andrei Matei.
7) Improve tc & XDP MTU handling and add a new bpf_check_mtu() helper to
query device MTU from programs, from Jesper Dangaard Brouer.
8) Allow bpf_get_socket_cookie() helper also be called from [sleepable] BPF
tracing programs, from Florent Revest.
9) Extend x86 JIT to pad JMPs with NOPs for helping image to converge when
otherwise too many passes are required, from Gary Lin.
10) Verifier fixes on atomics with BPF_FETCH as well as function-by-function
verification both related to zero-extension handling, from Ilya Leoshkevich.
11) Better kernel build integration of resolve_btfids tool, from Jiri Olsa.
12) Batch of AF_XDP selftest cleanups and small performance improvement
for libbpf's xsk map redirect for newer kernels, from Björn Töpel.
13) Follow-up BPF doc and verifier improvements around atomics with
BPF_FETCH, from Brendan Jackman.
14) Permit zero-sized data sections e.g. if ELF .rodata section contains
read-only data from local variables, from Yonghong Song.
15) veth driver skb bulk-allocation for ndo_xdp_xmit, from Lorenzo Bianconi.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools')
101 files changed, 3390 insertions, 839 deletions
diff --git a/tools/bpf/bpf_dbg.c b/tools/bpf/bpf_dbg.c index a0ebcdf59c31..a07dfc479270 100644 --- a/tools/bpf/bpf_dbg.c +++ b/tools/bpf/bpf_dbg.c @@ -890,7 +890,7 @@ static int bpf_run_stepping(struct sock_filter *f, uint16_t bpf_len, bool stop = false; int i = 1; - while (bpf_curr.Rs == false && stop == false) { + while (!bpf_curr.Rs && !stop) { bpf_safe_regs(); if (i++ == next) diff --git a/tools/bpf/bpftool/Makefile b/tools/bpf/bpftool/Makefile index 45ac2f9e0aa9..8ced1655fea6 100644 --- a/tools/bpf/bpftool/Makefile +++ b/tools/bpf/bpftool/Makefile @@ -75,8 +75,6 @@ endif INSTALL ?= install RM ?= rm -f -CLANG ?= clang -LLVM_STRIP ?= llvm-strip FEATURE_USER = .bpftool FEATURE_TESTS = libbfd disassembler-four-args reallocarray zlib libcap \ diff --git a/tools/bpf/bpftool/prog.c b/tools/bpf/bpftool/prog.c index 1fe3ba255bad..f2b915b20546 100644 --- a/tools/bpf/bpftool/prog.c +++ b/tools/bpf/bpftool/prog.c @@ -368,6 +368,8 @@ static void print_prog_header_json(struct bpf_prog_info *info) jsonw_uint_field(json_wtr, "run_time_ns", info->run_time_ns); jsonw_uint_field(json_wtr, "run_cnt", info->run_cnt); } + if (info->recursion_misses) + jsonw_uint_field(json_wtr, "recursion_misses", info->recursion_misses); } static void print_prog_json(struct bpf_prog_info *info, int fd) @@ -446,6 +448,8 @@ static void print_prog_header_plain(struct bpf_prog_info *info) if (info->run_time_ns) printf(" run_time_ns %lld run_cnt %lld", info->run_time_ns, info->run_cnt); + if (info->recursion_misses) + printf(" recursion_misses %lld", info->recursion_misses); printf("\n"); } diff --git a/tools/bpf/resolve_btfids/.gitignore b/tools/bpf/resolve_btfids/.gitignore index a026df7dc280..16913fffc985 100644 --- a/tools/bpf/resolve_btfids/.gitignore +++ b/tools/bpf/resolve_btfids/.gitignore @@ -1,4 +1,3 @@ -/FEATURE-DUMP.libbpf -/bpf_helper_defs.h /fixdep /resolve_btfids +/libbpf/ diff --git a/tools/bpf/resolve_btfids/Makefile b/tools/bpf/resolve_btfids/Makefile index bf656432ad73..bb9fa8de7e62 100644 --- a/tools/bpf/resolve_btfids/Makefile +++ b/tools/bpf/resolve_btfids/Makefile @@ -2,11 +2,7 @@ include ../../scripts/Makefile.include include ../../scripts/Makefile.arch -ifeq ($(srctree),) -srctree := $(patsubst %/,%,$(dir $(CURDIR))) -srctree := $(patsubst %/,%,$(dir $(srctree))) -srctree := $(patsubst %/,%,$(dir $(srctree))) -endif +srctree := $(abspath $(CURDIR)/../../../) ifeq ($(V),1) Q = @@ -22,28 +18,29 @@ AR = $(HOSTAR) CC = $(HOSTCC) LD = $(HOSTLD) ARCH = $(HOSTARCH) +RM ?= rm OUTPUT ?= $(srctree)/tools/bpf/resolve_btfids/ LIBBPF_SRC := $(srctree)/tools/lib/bpf/ SUBCMD_SRC := $(srctree)/tools/lib/subcmd/ -BPFOBJ := $(OUTPUT)/libbpf.a -SUBCMDOBJ := $(OUTPUT)/libsubcmd.a +BPFOBJ := $(OUTPUT)/libbpf/libbpf.a +SUBCMDOBJ := $(OUTPUT)/libsubcmd/libsubcmd.a BINARY := $(OUTPUT)/resolve_btfids BINARY_IN := $(BINARY)-in.o all: $(BINARY) -$(OUTPUT): +$(OUTPUT) $(OUTPUT)/libbpf $(OUTPUT)/libsubcmd: $(call msg,MKDIR,,$@) - $(Q)mkdir -p $(OUTPUT) + $(Q)mkdir -p $(@) -$(SUBCMDOBJ): fixdep FORCE - $(Q)$(MAKE) -C $(SUBCMD_SRC) OUTPUT=$(OUTPUT) +$(SUBCMDOBJ): fixdep FORCE | $(OUTPUT)/libsubcmd + $(Q)$(MAKE) -C $(SUBCMD_SRC) OUTPUT=$(abspath $(dir $@))/ $(abspath $@) -$(BPFOBJ): $(wildcard $(LIBBPF_SRC)/*.[ch] $(LIBBPF_SRC)/Makefile) | $(OUTPUT) +$(BPFOBJ): $(wildcard $(LIBBPF_SRC)/*.[ch] $(LIBBPF_SRC)/Makefile) | $(OUTPUT)/libbpf $(Q)$(MAKE) $(submake_extras) -C $(LIBBPF_SRC) OUTPUT=$(abspath $(dir $@))/ $(abspath $@) CFLAGS := -g \ @@ -57,24 +54,27 @@ LIBS = -lelf -lz export srctree OUTPUT CFLAGS Q include $(srctree)/tools/build/Makefile.include -$(BINARY_IN): fixdep FORCE +$(BINARY_IN): fixdep FORCE | $(OUTPUT) $(Q)$(MAKE) $(build)=resolve_btfids $(BINARY): $(BPFOBJ) $(SUBCMDOBJ) $(BINARY_IN) $(call msg,LINK,$@) $(Q)$(CC) $(BINARY_IN) $(LDFLAGS) -o $@ $(BPFOBJ) $(SUBCMDOBJ) $(LIBS) -libsubcmd-clean: - $(Q)$(MAKE) -C $(SUBCMD_SRC) OUTPUT=$(OUTPUT) clean - -libbpf-clean: - $(Q)$(MAKE) -C $(LIBBPF_SRC) OUTPUT=$(OUTPUT) clean +clean_objects := $(wildcard $(OUTPUT)/*.o \ + $(OUTPUT)/.*.o.cmd \ + $(OUTPUT)/.*.o.d \ + $(OUTPUT)/libbpf \ + $(OUTPUT)/libsubcmd \ + $(OUTPUT)/resolve_btfids) -clean: libsubcmd-clean libbpf-clean fixdep-clean +ifneq ($(clean_objects),) +clean: fixdep-clean $(call msg,CLEAN,$(BINARY)) - $(Q)$(RM) -f $(BINARY); \ - $(RM) -rf $(if $(OUTPUT),$(OUTPUT),.)/feature; \ - find $(if $(OUTPUT),$(OUTPUT),.) -name \*.o -or -name \*.o.cmd -or -name \*.o.d | xargs $(RM) + $(Q)$(RM) -rf $(clean_objects) +else +clean: +endif tags: $(call msg,GEN,,tags) diff --git a/tools/bpf/runqslower/Makefile b/tools/bpf/runqslower/Makefile index 4d5ca54fcd4c..9d9fb6209be1 100644 --- a/tools/bpf/runqslower/Makefile +++ b/tools/bpf/runqslower/Makefile @@ -3,9 +3,6 @@ include ../../scripts/Makefile.includ |