diff options
| -rw-r--r-- | tools/perf/Makefile.perf | 20 | ||||
| -rw-r--r-- | tools/perf/util/bpf_skel/.gitignore | 1 | ||||
| -rw-r--r-- | tools/perf/util/bpf_skel/vmlinux.h | 173 |
3 files changed, 174 insertions, 20 deletions
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index 48aba186ceb5..61c33d100b2b 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -1063,25 +1063,7 @@ $(BPFTOOL): | $(SKEL_TMP_OUT) $(Q)CFLAGS= $(MAKE) -C ../bpf/bpftool \ OUTPUT=$(SKEL_TMP_OUT)/ bootstrap -VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux) \ - $(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux) \ - ../../vmlinux \ - /sys/kernel/btf/vmlinux \ - /boot/vmlinux-$(shell uname -r) -VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS)))) - -$(SKEL_OUT)/vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL) -ifeq ($(VMLINUX_H),) - $(QUIET_GEN)$(BPFTOOL) btf dump file $< format c > $@ || \ - (echo "Failure to generate vmlinux.h needed for the recommended BPF skeleton support." && \ - echo "To disable this use the build option NO_BPF_SKEL=1." && \ - echo "Alternatively point at a pre-generated vmlinux.h with VMLINUX_H=<path>." && \ - false) -else - $(Q)cp "$(VMLINUX_H)" $@ -endif - -$(SKEL_TMP_OUT)/%.bpf.o: util/bpf_skel/%.bpf.c $(LIBBPF) $(SKEL_OUT)/vmlinux.h | $(SKEL_TMP_OUT) +$(SKEL_TMP_OUT)/%.bpf.o: util/bpf_skel/%.bpf.c $(LIBBPF) | $(SKEL_TMP_OUT) $(QUIET_CLANG)$(CLANG) -g -O2 -target bpf -Wall -Werror $(BPF_INCLUDE) \ -c $(filter util/bpf_skel/%.bpf.c,$^) -o $@ && $(LLVM_STRIP) -g $@ diff --git a/tools/perf/util/bpf_skel/.gitignore b/tools/perf/util/bpf_skel/.gitignore index cd01455e1b53..7a1c832825de 100644 --- a/tools/perf/util/bpf_skel/.gitignore +++ b/tools/perf/util/bpf_skel/.gitignore @@ -1,4 +1,3 @@ # SPDX-License-Identifier: GPL-2.0-only .tmp *.skel.h -vmlinux.h diff --git a/tools/perf/util/bpf_skel/vmlinux.h b/tools/perf/util/bpf_skel/vmlinux.h new file mode 100644 index 000000000000..449b1ea91fc4 --- /dev/null +++ b/tools/perf/util/bpf_skel/vmlinux.h @@ -0,0 +1,173 @@ +#ifndef __VMLINUX_H +#define __VMLINUX_H + +#include <linux/bpf.h> +#include <linux/types.h> +#include <linux/perf_event.h> +#include <stdbool.h> + +// non-UAPI kernel data structures, used in the .bpf.c BPF tool component. + +// Just the fields used in these tools preserving the access index so that +// libbpf can fixup offsets with the ones used in the kernel when loading the +// BPF bytecode, if they differ from what is used here. + +typedef __u8 u8; +typedef __u32 u32; +typedef __u64 u64; +typedef __s64 s64; + +typedef int pid_t; + +enum cgroup_subsys_id { + perf_event_cgrp_id = 8, +}; + +enum { + HI_SOFTIRQ = 0, + TIMER_SOFTIRQ, + NET_TX_SOFTIRQ, + NET_RX_SOFTIRQ, + BLOCK_SOFTIRQ, + IRQ_POLL_SOFTIRQ, + TASKLET_SOFTIRQ, + SCHED_SOFTIRQ, + HRTIMER_SOFTIRQ, + RCU_SOFTIRQ, /* Preferable RCU should always be the last softirq */ + + NR_SOFTIRQS +}; + +typedef struct { + s64 counter; +} __attribute__((preserve_access_index)) atomic64_t; + +typedef atomic64_t atomic_long_t; + +struct raw_spinlock { + int rawlock; +} __attribute__((preserve_access_index)); + +typedef struct raw_spinlock raw_spinlock_t; + +typedef struct { + struct raw_spinlock rlock; +} __attribute__((preserve_access_index)) spinlock_t; + +struct sighand_struct { + spinlock_t siglock; +} __attribute__((preserve_access_index)); + +struct rw_semaphore { + atomic_long_t owner; +} __attribute__((preserve_access_index)); + +struct mutex { + atomic_long_t owner; +} __attribute__((preserve_access_index)); + +struct kernfs_node { + u64 id; +} __attribute__((preserve_access_index)); + +struct cgroup { + struct kernfs_node *kn; + int level; +} __attribute__((preserve_access_index)); + +struct cgroup_subsys_state { + struct cgroup *cgroup; +} __attribute__((preserve_access_index)); + +struct css_set { + struct cgroup_subsys_state *subsys[13]; + struct cgroup *dfl_cgrp; +} __attribute__((preserve_access_index)); + +struct mm_struct { + struct rw_semaphore mmap_lock; +} __attribute__((preserve_access_index)); + +struct task_struct { + unsigned int flags; + struct mm_struct *mm; + pid_t pid; + pid_t tgid; + char comm[16]; + struct sighand_struct *sighand; + struct css_set *cgroups; +} __attribute__((preserve_access_index)); + +struct trace_entry { + short unsigned int type; + unsigned char flags; + unsigned char preempt_count; + int pid; +} __attribute__((preserve_access_index)); + +struct trace_event_raw_irq_handler_entry { + struct trace_entry ent; + int irq; + u32 __data_loc_name; + char __data[]; +} __attribute__((preserve_access_index)); + +struct trace_event_raw_irq_handler_exit { + struct trace_entry ent; + int irq; + int ret; + char __data[]; +} __attribute__((preserve_access_index)); + +struct trace_event_raw_softirq { + struct trace_entry ent; + unsigned int vec; + char __data[]; +} __attribute__((preserve_access_index)); + +struct trace_event_raw_workqueue_execute_start { + struct trace_entry ent; + void *work; + void *function; + char __data[]; +} __attribute__((preserve_access_index)); + +struct trace_event_raw_workqueue_execute_end { + struct trace_entry ent; + void *work; + void *function; + char __data[]; +} __attribute__((preserve_access_index)); + +struct trace_event_raw_workqueue_activate_work { + struct trace_entry ent; + void *work; + char __data[]; +} __attribute__((preserve_access_index)); + +struct perf_sample_data { + u64 addr; + u64 period; + union perf_sample_weight weight; + u64 txn; + union perf_mem_data_src data_src; + u64 ip; + struct { + u32 pid; + u32 tid; + } tid_entry; + u64 time; + u64 id; + struct { + u32 cpu; + } cpu_entry; + u64 phys_addr; + u64 data_page_size; + u64 code_page_size; +} __attribute__((__aligned__(64))) __attribute__((preserve_access_index)); + +struct bpf_perf_event_data_kern { + struct perf_sample_data *data; + struct perf_event *event; +} __attribute__((preserve_access_index)); +#endif // __VMLINUX_H |