diff options
Diffstat (limited to 'tools/lib/bpf/ringbuf.c')
| -rw-r--r-- | tools/lib/bpf/ringbuf.c | 34 |
1 files changed, 18 insertions, 16 deletions
diff --git a/tools/lib/bpf/ringbuf.c b/tools/lib/bpf/ringbuf.c index bfd8dac4c0cc..9702b70da444 100644 --- a/tools/lib/bpf/ringbuf.c +++ b/tools/lib/bpf/ringbuf.c @@ -21,6 +21,7 @@ #include "libbpf.h" #include "libbpf_internal.h" #include "bpf.h" +#include "str_error.h" struct ring { ring_buffer_sample_fn sample_cb; @@ -88,8 +89,8 @@ int ring_buffer__add(struct ring_buffer *rb, int map_fd, err = bpf_map_get_info_by_fd(map_fd, &info, &len); if (err) { err = -errno; - pr_warn("ringbuf: failed to get map info for fd=%d: %d\n", - map_fd, err); + pr_warn("ringbuf: failed to get map info for fd=%d: %s\n", + map_fd, errstr(err)); return libbpf_err(err); } @@ -123,8 +124,8 @@ int ring_buffer__add(struct ring_buffer *rb, int map_fd, tmp = mmap(NULL, rb->page_size, PROT_READ | PROT_WRITE, MAP_SHARED, map_fd, 0); if (tmp == MAP_FAILED) { err = -errno; - pr_warn("ringbuf: failed to mmap consumer page for map fd=%d: %d\n", - map_fd, err); + pr_warn("ringbuf: failed to mmap consumer page for map fd=%d: %s\n", + map_fd, errstr(err)); goto err_out; } r->consumer_pos = tmp; @@ -142,8 +143,8 @@ int ring_buffer__add(struct ring_buffer *rb, int map_fd, tmp = mmap(NULL, (size_t)mmap_sz, PROT_READ, MAP_SHARED, map_fd, rb->page_size); if (tmp == MAP_FAILED) { err = -errno; - pr_warn("ringbuf: failed to mmap data pages for map fd=%d: %d\n", - map_fd, err); + pr_warn("ringbuf: failed to mmap data pages for map fd=%d: %s\n", + map_fd, errstr(err)); goto err_out; } r->producer_pos = tmp; @@ -156,8 +157,8 @@ int ring_buffer__add(struct ring_buffer *rb, int map_fd, e->data.fd = rb->ring_cnt; if (epoll_ctl(rb->epoll_fd, EPOLL_CTL_ADD, map_fd, e) < 0) { err = -errno; - pr_warn("ringbuf: failed to epoll add map fd=%d: %d\n", - map_fd, err); + pr_warn("ringbuf: failed to epoll add map fd=%d: %s\n", + map_fd, errstr(err)); goto err_out; } @@ -205,7 +206,7 @@ ring_buffer__new(int map_fd, ring_buffer_sample_fn sample_cb, void *ctx, rb->epoll_fd = epoll_create1(EPOLL_CLOEXEC); if (rb->epoll_fd < 0) { err = -errno; - pr_warn("ringbuf: failed to create epoll instance: %d\n", err); + pr_warn("ringbuf: failed to create epoll instance: %s\n", errstr(err)); goto err_out; } @@ -458,7 +459,8 @@ static int user_ringbuf_map(struct user_ring_buffer *rb, int map_fd) err = bpf_map_get_info_by_fd(map_fd, &info, &len); if (err) { err = -errno; - pr_warn("user ringbuf: failed to get map info for fd=%d: %d\n", map_fd, err); + pr_warn("user ringbuf: failed to get map info for fd=%d: %s\n", + map_fd, errstr(err)); return err; } @@ -474,8 +476,8 @@ static int user_ringbuf_map(struct user_ring_buffer *rb, int map_fd) tmp = mmap(NULL, rb->page_size, PROT_READ, MAP_SHARED, map_fd, 0); if (tmp == MAP_FAILED) { err = -errno; - pr_warn("user ringbuf: failed to mmap consumer page for map fd=%d: %d\n", - map_fd, err); + pr_warn("user ringbuf: failed to mmap consumer page for map fd=%d: %s\n", + map_fd, errstr(err)); return err; } rb->consumer_pos = tmp; @@ -494,8 +496,8 @@ static int user_ringbuf_map(struct user_ring_buffer *rb, int map_fd) map_fd, rb->page_size); if (tmp == MAP_FAILED) { err = -errno; - pr_warn("user ringbuf: failed to mmap data pages for map fd=%d: %d\n", - map_fd, err); + pr_warn("user ringbuf: failed to mmap data pages for map fd=%d: %s\n", + map_fd, errstr(err)); return err; } @@ -506,7 +508,7 @@ static int user_ringbuf_map(struct user_ring_buffer *rb, int map_fd) rb_epoll->events = EPOLLOUT; if (epoll_ctl(rb->epoll_fd, EPOLL_CTL_ADD, map_fd, rb_epoll) < 0) { err = -errno; - pr_warn("user ringbuf: failed to epoll add map fd=%d: %d\n", map_fd, err); + pr_warn("user ringbuf: failed to epoll add map fd=%d: %s\n", map_fd, errstr(err)); return err; } @@ -531,7 +533,7 @@ user_ring_buffer__new(int map_fd, const struct user_ring_buffer_opts *opts) rb->epoll_fd = epoll_create1(EPOLL_CLOEXEC); if (rb->epoll_fd < 0) { err = -errno; - pr_warn("user ringbuf: failed to create epoll instance: %d\n", err); + pr_warn("user ringbuf: failed to create epoll instance: %s\n", errstr(err)); goto err_out; } |