X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Funix%2Fgdb_funcs.c;h=29011f05ce16d0e227cd1555857ef299aef57933;hb=282872127;hp=32e22d924baab894b553317d36165cdbc1d6c597;hpb=66b11318a1e5f24880e3ec77c95d70647732a4a8;p=vpp.git diff --git a/src/vnet/unix/gdb_funcs.c b/src/vnet/unix/gdb_funcs.c index 32e22d924ba..29011f05ce1 100644 --- a/src/vnet/unix/gdb_funcs.c +++ b/src/vnet/unix/gdb_funcs.c @@ -31,11 +31,27 @@ * @return length - u32 * */ -u32 vl(void *p) +u32 +vl (void *p) { return vec_len (p); } +/** + * @brief GDB callable function: pvh - Return vector header of vector + * + * @param *p - void - address of vector + * + * @return vh - vec_header_t, the vector header + * + */ +vec_header_t * +pvh (void *p) +{ + return _vec_find (p); +} + + /** * @brief GDB callable function: pe - call pool_elts - number of elements in a pool * @@ -44,9 +60,10 @@ u32 vl(void *p) * @return number - uword * */ -uword pe (void *v) +uword +pe (void *v) { - return (pool_elts(v)); + return (pool_elts (v)); } /** @@ -58,7 +75,8 @@ uword pe (void *v) * @return 0|1 - int * */ -int pifi (void *p, u32 index) +int +pifi (void *p, u32 index) { return pool_is_free_index (p, index); } @@ -70,7 +88,8 @@ int pifi (void *p, u32 index) * @param n - u32 - number of bytes to format * */ -void debug_hex_bytes (u8 *s, u32 n) +void +debug_hex_bytes (u8 * s, u32 n) { fformat (stderr, "%U\n", format_hex_bytes, s, n); } @@ -79,39 +98,39 @@ void debug_hex_bytes (u8 *s, u32 n) * @brief GDB callable function: vlib_dump_frame_ownership * */ -void vlib_dump_frame_ownership (void) +void +vlib_dump_frame_ownership (void) { - vlib_main_t * vm = vlib_get_main(); - vlib_node_main_t * nm = &vm->node_main; - vlib_node_runtime_t * this_node_runtime; - vlib_next_frame_t * nf; + vlib_main_t *vm = vlib_get_main (); + vlib_node_main_t *nm = &vm->node_main; + vlib_node_runtime_t *this_node_runtime; + vlib_next_frame_t *nf; u32 first_nf_index; u32 index; - vec_foreach(this_node_runtime, nm->nodes_by_type[VLIB_NODE_TYPE_INTERNAL]) - { - first_nf_index = this_node_runtime->next_frame_index; - - for (index = first_nf_index; index < first_nf_index + - this_node_runtime->n_next_nodes; index++) - { - vlib_node_runtime_t * owned_runtime; - nf = vec_elt_at_index (vm->node_main.next_frames, index); - if (nf->flags & VLIB_FRAME_OWNER) - { - owned_runtime = vec_elt_at_index (nm->nodes_by_type[0], - nf->node_runtime_index); - fformat(stderr, - "%s next index %d owns enqueue rights to %s\n", - nm->nodes[this_node_runtime->node_index]->name, - index - first_nf_index, - nm->nodes[owned_runtime->node_index]->name); - fformat (stderr, " nf index %d nf->frame_index %d\n", - nf - vm->node_main.next_frames, - nf->frame_index); - } - } - } + vec_foreach (this_node_runtime, nm->nodes_by_type[VLIB_NODE_TYPE_INTERNAL]) + { + first_nf_index = this_node_runtime->next_frame_index; + + for (index = first_nf_index; index < first_nf_index + + this_node_runtime->n_next_nodes; index++) + { + vlib_node_runtime_t *owned_runtime; + nf = vec_elt_at_index (vm->node_main.next_frames, index); + if (nf->flags & VLIB_FRAME_OWNER) + { + owned_runtime = vec_elt_at_index (nm->nodes_by_type[0], + nf->node_runtime_index); + fformat (stderr, + "%s next index %d owns enqueue rights to %s\n", + nm->nodes[this_node_runtime->node_index]->name, + index - first_nf_index, + nm->nodes[owned_runtime->node_index]->name); + fformat (stderr, " nf index %d nf->frame %p\n", + nf - vm->node_main.next_frames, nf->frame); + } + } + } } /** @@ -121,45 +140,49 @@ void vlib_dump_frame_ownership (void) * * @param index - u32 */ -void vlib_runtime_index_to_node_name (u32 index) +void +vlib_runtime_index_to_node_name (u32 index) { - vlib_main_t * vm = vlib_get_main(); - vlib_node_main_t * nm = &vm->node_main; + vlib_main_t *vm = vlib_get_main (); + vlib_node_main_t *nm = &vm->node_main; - if (index > vec_len (nm->nodes)) + if (index >= vec_len (nm->nodes)) { - fformat(stderr, "%d out of range, max %d\n", vec_len(nm->nodes)); + fformat (stderr, "%d out of range, max %d\n", vec_len (nm->nodes)); return; } - fformat(stderr, "node runtime index %d name %s\n", index, nm->nodes[index]->name); + fformat (stderr, "node runtime index %d name %s\n", index, + nm->nodes[index]->name); } -void gdb_show_errors (int verbose) +void +gdb_show_errors (int verbose) { extern vlib_cli_command_t vlib_cli_show_errors; unformat_input_t input; - vlib_main_t * vm = vlib_get_main(); + vlib_main_t *vm = vlib_get_main (); if (verbose == 0) unformat_init_string (&input, "verbose 0", 9); else if (verbose == 1) unformat_init_string (&input, "verbose 1", 9); - else + else { - fformat(stderr, "verbose not 0 or 1\n"); + fformat (stderr, "verbose not 0 or 1\n"); return; } - vlib_cli_show_errors.function (vm, &input, 0 /* cmd */); + vlib_cli_show_errors.function (vm, &input, 0 /* cmd */ ); unformat_free (&input); -} +} -void gdb_show_session (int verbose) +void +gdb_show_session (int verbose) { extern vlib_cli_command_t vlib_cli_show_session_command; unformat_input_t input; - vlib_main_t * vm = vlib_get_main(); + vlib_main_t *vm = vlib_get_main (); if (verbose == 0) unformat_init_string (&input, "verbose 0", 9); @@ -167,15 +190,88 @@ void gdb_show_session (int verbose) unformat_init_string (&input, "verbose 1", 9); else if (verbose == 2) unformat_init_string (&input, "verbose 2", 9); - else + else { - fformat(stderr, "verbose not 0 - 2\n"); + fformat (stderr, "verbose not 0 - 2\n"); return; } - vlib_cli_show_session_command.function (vm, &input, 0 /* cmd */); + vlib_cli_show_session_command.function (vm, &input, 0 /* cmd */ ); unformat_free (&input); -} +} + +static int +trace_cmp (void *a1, void *a2) +{ + vlib_trace_header_t **t1 = a1; + vlib_trace_header_t **t2 = a2; + i64 dt = t1[0]->time - t2[0]->time; + return dt < 0 ? -1 : (dt > 0 ? +1 : 0); +} + +void +gdb_show_traces () +{ + vlib_trace_main_t *tm; + vlib_trace_header_t **h, **traces; + u32 i, index = 0; + char *fmt; + u8 *s = 0; + u32 max; + + /* By default display only this many traces. */ + max = 50; + + /* Get active traces from pool. */ + + /* *INDENT-OFF* */ + foreach_vlib_main ( + ({ + fmt = "------------------- Start of thread %d %s -------------------\n"; + s = format (s, fmt, index, vlib_worker_threads[index].name); + + tm = &this_vlib_main->trace_main; + + trace_apply_filter(this_vlib_main); + + traces = 0; + pool_foreach (h, tm->trace_buffer_pool, + ({ + vec_add1 (traces, h[0]); + })); + + if (vec_len (traces) == 0) + { + s = format (s, "No packets in trace buffer\n"); + goto done; + } + + /* Sort them by increasing time. */ + vec_sort_with_function (traces, trace_cmp); + + for (i = 0; i < vec_len (traces); i++) + { + if (i == max) + { + fformat (stderr, "Limiting display to %d packets." + " To display more specify max.", max); + goto done; + } + + s = format (s, "Packet %d\n%U\n\n", i + 1, + format_vlib_trace, vlib_mains[0], traces[i]); + } + + done: + vec_free (traces); + + index++; + })); + /* *INDENT-ON* */ + + fformat (stderr, "%v", s); + vec_free (s); +} /** * @brief GDB callable function: show_gdb_command_fn - show gdb @@ -186,14 +282,18 @@ void gdb_show_session (int verbose) */ static clib_error_t * show_gdb_command_fn (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) + unformat_input_t * input, vlib_cli_command_t * cmd) { vlib_cli_output (vm, "vl(p) returns vec_len(p)"); + vlib_cli_output (vm, "vb(b) returns vnet_buffer(b) [opaque]"); + vlib_cli_output (vm, "vb2(b) returns vnet_buffer2(b) [opaque2]"); + vlib_cli_output (vm, "vbi(b) returns b index"); vlib_cli_output (vm, "pe(p) returns pool_elts(p)"); vlib_cli_output (vm, "pifi(p, i) returns pool_is_free_index(p, i)"); vlib_cli_output (vm, "gdb_show_errors(0|1) dumps error counters"); vlib_cli_output (vm, "gdb_show_session dumps session counters"); + vlib_cli_output (vm, "gdb_show_traces() dumps buffer traces"); + vlib_cli_output (vm, "gdb_validate_buffer(b) check vlib_buffer b sanity"); vlib_cli_output (vm, "debug_hex_bytes (ptr, n_bytes) dumps n_bytes in hex"); vlib_cli_output (vm, "vlib_dump_frame_ownership() does what it says"); vlib_cli_output (vm, "vlib_runtime_index_to_node_name (index) prints NN"); @@ -201,24 +301,75 @@ show_gdb_command_fn (vlib_main_t * vm, return 0; } +/* *INDENT-OFF* */ VLIB_CLI_COMMAND (show_gdb_funcs_command, static) = { .path = "show gdb", .short_help = "Describe functions which can be called from gdb", .function = show_gdb_command_fn, }; +/* *INDENT-ON* */ + +vnet_buffer_opaque_t * +vb (void *vb_arg) +{ + vlib_buffer_t *b = (vlib_buffer_t *) vb_arg; + vnet_buffer_opaque_t *rv; + + rv = vnet_buffer (b); + + return rv; +} + +vnet_buffer_opaque2_t * +vb2 (void *vb_arg) +{ + vlib_buffer_t *b = (vlib_buffer_t *) vb_arg; + vnet_buffer_opaque2_t *rv; + + rv = vnet_buffer2 (b); -vnet_buffer_opaque_t *vb (void *vb_arg) + return rv; +} + +u32 +vbi (vlib_buffer_t * b) { - vlib_buffer_t *b = (vlib_buffer_t *)vb_arg; - vnet_buffer_opaque_t *rv; - - rv = vnet_buffer (b); + vlib_main_t *vm = vlib_get_main (); + vlib_buffer_main_t *bm = vm->buffer_main; + u32 bi = pointer_to_uword (b) - bm->buffer_mem_start; + bi >>= CLIB_LOG2_CACHE_LINE_BYTES; + return bi; +} - return rv; +int +gdb_validate_buffer (vlib_buffer_t * b) +{ + vlib_main_t *vm = vlib_get_main (); + u32 bi = vbi (b); + u8 *s = + vlib_validate_buffers (vm, &bi, 0, 1, VLIB_BUFFER_KNOWN_ALLOCATED, 1); + if (s) + { + fformat (stderr, "gdb_validate_buffer(): %v", s); + return -1; + } + fformat (stderr, "gdb_validate_buffer(): no error found\n"); + return 0; } /* Cafeteria plan, maybe you don't want these functions */ -clib_error_t * -gdb_func_init (vlib_main_t * vm) { return 0; } +clib_error_t * +gdb_func_init (vlib_main_t * vm) +{ + return 0; +} VLIB_INIT_FUNCTION (gdb_func_init); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */