diff options
Diffstat (limited to 'tools')
99 files changed, 4100 insertions, 849 deletions
diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature index cb152370fdef..774f0b0ca28a 100644 --- a/tools/build/Makefile.feature +++ b/tools/build/Makefile.feature @@ -8,7 +8,7 @@ endif feature_check = $(eval $(feature_check_code)) define feature_check_code - feature-$(1) := $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CFLAGS="$(EXTRA_CFLAGS) $(FEATURE_CHECK_CFLAGS-$(1))" CXXFLAGS="$(EXTRA_CXXFLAGS) $(FEATURE_CHECK_CXXFLAGS-$(1))" LDFLAGS="$(LDFLAGS) $(FEATURE_CHECK_LDFLAGS-$(1))" -C $(feature_dir) $(OUTPUT_FEATURES)test-$1.bin >/dev/null 2>/dev/null && echo 1 || echo 0) + feature-$(1) := $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CC=$(CC) CXX=$(CXX) CFLAGS="$(EXTRA_CFLAGS) $(FEATURE_CHECK_CFLAGS-$(1))" CXXFLAGS="$(EXTRA_CXXFLAGS) $(FEATURE_CHECK_CXXFLAGS-$(1))" LDFLAGS="$(LDFLAGS) $(FEATURE_CHECK_LDFLAGS-$(1))" -C $(feature_dir) $(OUTPUT_FEATURES)test-$1.bin >/dev/null 2>/dev/null && echo 1 || echo 0) endef feature_set = $(eval $(feature_set_code)) diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile index 88371f7f0369..846ee1341a5c 100644 --- a/tools/build/feature/Makefile +++ b/tools/build/feature/Makefile @@ -74,8 +74,6 @@ FILES= \ FILES := $(addprefix $(OUTPUT),$(FILES)) -CC ?= $(CROSS_COMPILE)gcc -CXX ?= $(CROSS_COMPILE)g++ PKG_CONFIG ?= $(CROSS_COMPILE)pkg-config LLVM_CONFIG ?= llvm-config CLANG ?= clang diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h index 21a1edd08cbe..077e7ee69e3d 100644 --- a/tools/include/uapi/linux/perf_event.h +++ b/tools/include/uapi/linux/perf_event.h @@ -383,7 +383,8 @@ struct perf_event_attr { bpf_event : 1, /* include bpf events */ aux_output : 1, /* generate AUX records instead of events */ cgroup : 1, /* include cgroup events */ - __reserved_1 : 31; + text_poke : 1, /* include text poke events */ + __reserved_1 : 30; union { __u32 wakeup_events; /* wakeup every n events */ @@ -1041,12 +1042,35 @@ enum perf_event_type { */ PERF_RECORD_CGROUP = 19, + /* + * Records changes to kernel text i.e. self-modified code. 'old_len' is + * the number of old bytes, 'new_len' is the number of new bytes. Either + * 'old_len' or 'new_len' may be zero to indicate, for example, the + * addition or removal of a trampoline. 'bytes' contains the old bytes + * followed immediately by the new bytes. + * + * struct { + * struct perf_event_header header; + * u64 addr; + * u16 old_len; + * u16 new_len; + * u8 bytes[]; + * struct sample_id sample_id; + * }; + */ + PERF_RECORD_TEXT_POKE = 20, + PERF_RECORD_MAX, /* non-ABI */ }; enum perf_record_ksymbol_type { PERF_RECORD_KSYMBOL_TYPE_UNKNOWN = 0, PERF_RECORD_KSYMBOL_TYPE_BPF = 1, + /* + * Out of line code such as kprobe-replaced instructions or optimized + * kprobes or ftrace trampolines. + */ + PERF_RECORD_KSYMBOL_TYPE_OOL = 2, PERF_RECORD_KSYMBOL_TYPE_MAX /* non-ABI */ }; diff --git a/tools/lib/api/fd/array.c b/tools/lib/api/fd/array.c index 58d44d5eee31..5e6cb9debe37 100644 --- a/tools/lib/api/fd/array.c +++ b/tools/lib/api/fd/array.c @@ -8,6 +8,7 @@ #include <poll.h> #include <stdlib.h> #include <unistd.h> +#include <string.h> void fdarray__init(struct fdarray *fda, int nr_autogrow) { @@ -19,7 +20,7 @@ void fdarray__init(struct fdarray *fda, int nr_autogrow) int fdarray__grow(struct fdarray *fda, int nr) { - void *priv; + struct priv *priv; int nr_alloc = fda->nr_alloc + nr; size_t psize = sizeof(fda->priv[0]) * nr_alloc; size_t size = sizeof(struct pollfd) * nr_alloc; @@ -34,6 +35,9 @@ int fdarray__grow(struct fdarray *fda, int nr) return -ENOMEM; } + memset(&entries[fda->nr_alloc], 0, sizeof(struct pollfd) * nr); + memset(&priv[fda->nr_alloc], 0, sizeof(fda->priv[0]) * nr); + fda->nr_alloc = nr_alloc; fda->entries = entries; fda->priv = priv; @@ -69,7 +73,7 @@ void fdarray__delete(struct fdarray *fda) free(fda); } -int fdarray__add(struct fdarray *fda, int fd, short revents) +int fdarray__add(struct fdarray *fda, int fd, short revents, enum fdarray_flags flags) { int pos = fda->nr; @@ -79,6 +83,7 @@ int fdarray__add(struct fdarray *fda, int fd, short revents) fda->entries[fda->nr].fd = fd; fda->entries[fda->nr].events = revents; + fda->priv[fda->nr].flags = flags; fda->nr++; return pos; } @@ -93,22 +98,22 @@ int fdarray__filter(struct fdarray *fda, short revents, return 0; for (fd = 0; fd < fda->nr; ++fd) { + if (!fda->entries[fd].events) + continue; + if (fda->entries[fd].revents & revents) { if (entry_destructor) entry_destructor(fda, fd, arg); + fda->entries[fd].revents = fda->entries[fd].events = 0; continue; } - if (fd != nr) { - fda->entries[nr] = fda->entries[fd]; - fda->priv[nr] = fda->priv[fd]; - } - - ++nr; + if (!(fda->priv[fd].flags & fdarray_flag__nonfilterable)) + ++nr; } - return fda->nr = nr; + return nr; } int fdarray__poll(struct fdarray *fda, int timeout) diff --git a/tools/lib/api/fd/array.h b/tools/lib/api/fd/array.h index b39557d1a88f..7fcf21a33c0c 100644 --- a/tools/lib/api/fd/array.h +++ b/tools/lib/api/fd/array.h @@ -21,19 +21,27 @@ struct fdarray { int nr_alloc; int nr_autogrow; struct pollfd *entries; - union { - int idx; - void *ptr; + struct priv { + union { + int idx; + void *ptr; + }; + unsigned int flags; } *priv; }; +enum fdarray_flags { + fdarray_flag__default = 0x00000000, + fdarray_flag__nonfilterable = 0x00000001 +}; + void fdarray__init(struct fdarray *fda, int nr_autogrow); void fdarray__exit(struct fdarray *fda); struct fdarray *fdarray__new(int nr_alloc, int nr_autogrow); void fdarray__delete(struct fdarray *fda); -int fdarray__add(struct fdarray *fda, int fd, short revents); +int fdarray__add(struct fdarray *fda, int fd, short revents, enum fdarray_flags flags); int fdarray__poll(struct fdarray *fda, int timeout); int fdarray__filter(struct fdarray *fda, short revents, void (*entry_destructor)(struct fdarray *fda, int fd, void *arg), diff --git a/tools/lib/perf/evlist.c b/tools/lib/perf/evlist.c index 6a875a0f01bb..2208444ecb44 100644 --- a/tools/lib/perf/evlist.c +++ b/tools/lib/perf/evlist.c @@ -305,9 +305,9 @@ int perf_evlist__alloc_pollfd(struct perf_evlist *evlist) } int perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd, - void *ptr, short revent) + void *ptr, short revent, enum fdarray_flags flags) { - int pos = fdarray__add(&evlist->pollfd, fd, revent | POLLERR | POLLHUP); + int pos = fdarray__add(&evlist->pollfd, fd, revent | POLLERR | POLLHUP, flags); if (pos >= 0) { evlist->pollfd.priv[pos].ptr = ptr; @@ -488,7 +488,7 @@ mmap_per_evsel(struct perf_evlist *evlist, struct perf_evlist_mmap_ops *ops, revent = !overwrite ? POLLIN : 0; if (!evsel->system_wide && - perf_evlist__add_pollfd(evlist, fd, map, revent) < 0) { + perf_evlist__add_pollfd(evlist, fd, map, revent, fdarray_flag__default) < 0) { perf_mmap__put(map); return -1; } diff --git a/tools/lib/perf/include/internal/evlist.h b/tools/lib/perf/include/internal/evlist.h index 74dc8c3f0b66..2d0fa02b036f 100644 --- a/tools/lib/perf/include/internal/evlist.h +++ b/tools/lib/perf/include/internal/evlist.h @@ -45,7 +45,7 @@ struct perf_evlist_mmap_ops { int perf_evlist__alloc_pollfd(struct perf_evlist *evlist); int perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd, - void *ptr, short revent); + void *ptr, short revent, enum fdarray_flags flags); int perf_evlist__mmap_ops(struct perf_evlist *evlist, struct perf_evlist_mmap_ops *ops, diff --git a/tools/lib/perf/include/perf/event.h b/tools/lib/perf/include/perf/event.h index 69b44d2cc0f5..842028858d66 100644 --- a/tools |