![Arnaldo Carvalho de Melo](/assets/img/avatar_default.png)
So that we ensure that the symbol asked for annotation really is in the DSO we are interested in. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1269459619-982-6-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
527 lines
12 KiB
C
527 lines
12 KiB
C
#define _GNU_SOURCE
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#include <stdio.h>
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#undef _GNU_SOURCE
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#include <stdlib.h>
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#include <newt.h>
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#include <sys/ttydefaults.h>
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#include "cache.h"
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#include "hist.h"
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#include "session.h"
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#include "sort.h"
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#include "symbol.h"
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static void newt_form__set_exit_keys(newtComponent self)
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{
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newtFormAddHotKey(self, NEWT_KEY_ESCAPE);
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newtFormAddHotKey(self, 'Q');
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newtFormAddHotKey(self, 'q');
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newtFormAddHotKey(self, CTRL('c'));
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}
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static newtComponent newt_form__new(void)
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{
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newtComponent self = newtForm(NULL, NULL, 0);
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if (self)
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newt_form__set_exit_keys(self);
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return self;
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}
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static int popup_menu(int argc, const char *argv[])
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{
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struct newtExitStruct es;
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int i, rc = -1, max_len = 5;
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newtComponent listbox, form = newt_form__new();
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if (form == NULL)
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return -1;
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listbox = newtListbox(0, 0, argc, NEWT_FLAG_RETURNEXIT);
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if (listbox == NULL)
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goto out_destroy_form;
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newtFormAddComponents(form, listbox, NULL);
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for (i = 0; i < argc; ++i) {
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int len = strlen(argv[i]);
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if (len > max_len)
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max_len = len;
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if (newtListboxAddEntry(listbox, argv[i], (void *)(long)i))
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goto out_destroy_form;
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}
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newtCenteredWindow(max_len, argc, NULL);
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newtFormRun(form, &es);
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rc = newtListboxGetCurrent(listbox) - NULL;
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if (es.reason == NEWT_EXIT_HOTKEY)
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rc = -1;
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newtPopWindow();
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out_destroy_form:
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newtFormDestroy(form);
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return rc;
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}
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static bool dialog_yesno(const char *msg)
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{
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/* newtWinChoice should really be accepting const char pointers... */
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char yes[] = "Yes", no[] = "No";
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return newtWinChoice(NULL, no, yes, (char *)msg) == 2;
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}
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/*
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* When debugging newt problems it was useful to be able to "unroll"
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* the calls to newtCheckBoxTreeAdd{Array,Item}, so that we can generate
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* a source file with the sequence of calls to these methods, to then
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* tweak the arrays to get the intended results, so I'm keeping this code
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* here, may be useful again in the future.
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*/
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#undef NEWT_DEBUG
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static void newt_checkbox_tree__add(newtComponent tree, const char *str,
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void *priv, int *indexes)
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{
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#ifdef NEWT_DEBUG
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/* Print the newtCheckboxTreeAddArray to tinker with its index arrays */
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int i = 0, len = 40 - strlen(str);
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fprintf(stderr,
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"\tnewtCheckboxTreeAddItem(tree, %*.*s\"%s\", (void *)%p, 0, ",
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len, len, " ", str, priv);
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while (indexes[i] != NEWT_ARG_LAST) {
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if (indexes[i] != NEWT_ARG_APPEND)
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fprintf(stderr, " %d,", indexes[i]);
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else
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fprintf(stderr, " %s,", "NEWT_ARG_APPEND");
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++i;
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}
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fprintf(stderr, " %s", " NEWT_ARG_LAST);\n");
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fflush(stderr);
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#endif
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newtCheckboxTreeAddArray(tree, str, priv, 0, indexes);
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}
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static char *callchain_list__sym_name(struct callchain_list *self,
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char *bf, size_t bfsize)
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{
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if (self->ms.sym)
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return self->ms.sym->name;
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snprintf(bf, bfsize, "%#Lx", self->ip);
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return bf;
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}
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static void __callchain__append_graph_browser(struct callchain_node *self,
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newtComponent tree, u64 total,
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int *indexes, int depth)
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{
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struct rb_node *node;
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u64 new_total, remaining;
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int idx = 0;
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if (callchain_param.mode == CHAIN_GRAPH_REL)
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new_total = self->children_hit;
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else
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new_total = total;
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remaining = new_total;
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node = rb_first(&self->rb_root);
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while (node) {
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struct callchain_node *child = rb_entry(node, struct callchain_node, rb_node);
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struct rb_node *next = rb_next(node);
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u64 cumul = cumul_hits(child);
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struct callchain_list *chain;
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int first = true, printed = 0;
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int chain_idx = -1;
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remaining -= cumul;
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indexes[depth] = NEWT_ARG_APPEND;
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indexes[depth + 1] = NEWT_ARG_LAST;
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list_for_each_entry(chain, &child->val, list) {
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char ipstr[BITS_PER_LONG / 4 + 1],
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*alloc_str = NULL;
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const char *str = callchain_list__sym_name(chain, ipstr, sizeof(ipstr));
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if (first) {
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double percent = cumul * 100.0 / new_total;
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first = false;
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if (asprintf(&alloc_str, "%2.2f%% %s", percent, str) < 0)
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str = "Not enough memory!";
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else
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str = alloc_str;
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} else {
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indexes[depth] = idx;
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indexes[depth + 1] = NEWT_ARG_APPEND;
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indexes[depth + 2] = NEWT_ARG_LAST;
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++chain_idx;
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}
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newt_checkbox_tree__add(tree, str, &chain->ms, indexes);
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free(alloc_str);
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++printed;
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}
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indexes[depth] = idx;
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if (chain_idx != -1)
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indexes[depth + 1] = chain_idx;
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if (printed != 0)
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++idx;
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__callchain__append_graph_browser(child, tree, new_total, indexes,
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depth + (chain_idx != -1 ? 2 : 1));
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node = next;
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}
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}
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static void callchain__append_graph_browser(struct callchain_node *self,
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newtComponent tree, u64 total,
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int *indexes, int parent_idx)
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{
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struct callchain_list *chain;
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int i = 0;
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indexes[1] = NEWT_ARG_APPEND;
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indexes[2] = NEWT_ARG_LAST;
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list_for_each_entry(chain, &self->val, list) {
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char ipstr[BITS_PER_LONG / 4 + 1], *str;
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if (chain->ip >= PERF_CONTEXT_MAX)
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continue;
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if (!i++ && sort__first_dimension == SORT_SYM)
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continue;
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str = callchain_list__sym_name(chain, ipstr, sizeof(ipstr));
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newt_checkbox_tree__add(tree, str, &chain->ms, indexes);
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}
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indexes[1] = parent_idx;
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indexes[2] = NEWT_ARG_APPEND;
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indexes[3] = NEWT_ARG_LAST;
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__callchain__append_graph_browser(self, tree, total, indexes, 2);
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}
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static void hist_entry__append_callchain_browser(struct hist_entry *self,
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newtComponent tree, u64 total, int parent_idx)
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{
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struct rb_node *rb_node;
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int indexes[1024] = { [0] = parent_idx, };
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int idx = 0;
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struct callchain_node *chain;
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rb_node = rb_first(&self->sorted_chain);
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while (rb_node) {
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chain = rb_entry(rb_node, struct callchain_node, rb_node);
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switch (callchain_param.mode) {
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case CHAIN_FLAT:
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break;
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case CHAIN_GRAPH_ABS: /* falldown */
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case CHAIN_GRAPH_REL:
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callchain__append_graph_browser(chain, tree, total, indexes, idx++);
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break;
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case CHAIN_NONE:
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default:
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break;
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}
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rb_node = rb_next(rb_node);
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}
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}
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/*
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* FIXME: get lib/string.c linked with perf somehow
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*/
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static char *skip_spaces(const char *str)
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{
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while (isspace(*str))
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++str;
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return (char *)str;
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}
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static char *strim(char *s)
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{
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size_t size;
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char *end;
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s = skip_spaces(s);
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size = strlen(s);
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if (!size)
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return s;
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end = s + size - 1;
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while (end >= s && isspace(*end))
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end--;
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*(end + 1) = '\0';
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return s;
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}
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static size_t hist_entry__append_browser(struct hist_entry *self,
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newtComponent tree, u64 total)
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{
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char bf[1024], *s;
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FILE *fp;
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if (symbol_conf.exclude_other && !self->parent)
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return 0;
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fp = fmemopen(bf, sizeof(bf), "w");
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if (fp == NULL)
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return 0;
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hist_entry__fprintf(self, NULL, false, 0, fp, total);
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fclose(fp);
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/*
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* FIXME: We shouldn't need to trim, as the printing routines shouldn't
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* add spaces it in the first place, the stdio output routines should
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* call a __snprintf method instead of the current __print (that
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* actually is a __fprintf) one, but get the raw string and _then_ add
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* the newline, as this is a detail of stdio printing, not needed in
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* other UIs, e.g. newt.
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*/
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s = strim(bf);
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if (symbol_conf.use_callchain) {
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int indexes[2];
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indexes[0] = NEWT_ARG_APPEND;
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indexes[1] = NEWT_ARG_LAST;
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newt_checkbox_tree__add(tree, s, &self->ms, indexes);
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} else
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newtListboxAppendEntry(tree, s, &self->ms);
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return strlen(s);
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}
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static void map_symbol__annotate_browser(const struct map_symbol *self)
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{
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FILE *fp;
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int cols, rows;
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newtComponent form, tree;
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struct newtExitStruct es;
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char *str;
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size_t line_len, max_line_len = 0;
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size_t max_usable_width;
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char *line = NULL;
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if (self->sym == NULL)
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return;
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if (asprintf(&str, "perf annotate -d \"%s\" %s 2>&1 | expand",
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self->map->dso->name, self->sym->name) < 0)
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return;
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fp = popen(str, "r");
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if (fp == NULL)
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goto out_free_str;
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newtPushHelpLine("Press ESC to exit");
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newtGetScreenSize(&cols, &rows);
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tree = newtListbox(0, 0, rows - 5, NEWT_FLAG_SCROLL);
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while (!feof(fp)) {
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if (getline(&line, &line_len, fp) < 0 || !line_len)
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break;
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while (line_len != 0 && isspace(line[line_len - 1]))
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line[--line_len] = '\0';
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if (line_len > max_line_len)
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max_line_len = line_len;
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newtListboxAppendEntry(tree, line, NULL);
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}
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fclose(fp);
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free(line);
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max_usable_width = cols - 22;
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if (max_line_len > max_usable_width)
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max_line_len = max_usable_width;
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newtListboxSetWidth(tree, max_line_len);
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newtCenteredWindow(max_line_len + 2, rows - 5, self->sym->name);
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form = newt_form__new();
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newtFormAddComponents(form, tree, NULL);
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newtFormRun(form, &es);
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newtFormDestroy(form);
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newtPopWindow();
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newtPopHelpLine();
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out_free_str:
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free(str);
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}
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static const void *newt__symbol_tree_get_current(newtComponent self)
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{
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if (symbol_conf.use_callchain)
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return newtCheckboxTreeGetCurrent(self);
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return newtListboxGetCurrent(self);
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}
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static void perf_session__selection(newtComponent self, void *data)
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{
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const struct map_symbol **symbol_ptr = data;
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*symbol_ptr = newt__symbol_tree_get_current(self);
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}
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void perf_session__browse_hists(struct rb_root *hists, u64 session_total,
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const char *helpline)
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{
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struct sort_entry *se;
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struct rb_node *nd;
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char seq[] = ".";
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unsigned int width;
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char *col_width = symbol_conf.col_width_list_str;
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int rows, cols, idx;
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int max_len = 0;
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char str[1024];
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newtComponent form, tree;
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struct newtExitStruct es;
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const struct map_symbol *selection;
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snprintf(str, sizeof(str), "Samples: %Ld", session_total);
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newtDrawRootText(0, 0, str);
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newtPushHelpLine(helpline);
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newtGetScreenSize(&cols, &rows);
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if (symbol_conf.use_callchain)
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tree = newtCheckboxTreeMulti(0, 0, rows - 5, seq,
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NEWT_FLAG_SCROLL);
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else
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tree = newtListbox(0, 0, rows - 5, (NEWT_FLAG_SCROLL |
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NEWT_FLAG_RETURNEXIT));
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newtComponentAddCallback(tree, perf_session__selection, &selection);
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list_for_each_entry(se, &hist_entry__sort_list, list) {
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if (se->elide)
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continue;
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width = strlen(se->header);
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if (se->width) {
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if (symbol_conf.col_width_list_str) {
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if (col_width) {
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*se->width = atoi(col_width);
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col_width = strchr(col_width, ',');
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if (col_width)
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++col_width;
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}
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}
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*se->width = max(*se->width, width);
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}
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}
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idx = 0;
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for (nd = rb_first(hists); nd; nd = rb_next(nd)) {
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struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
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int len = hist_entry__append_browser(h, tree, session_total);
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if (len > max_len)
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max_len = len;
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if (symbol_conf.use_callchain)
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hist_entry__append_callchain_browser(h, tree, session_total, idx++);
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}
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if (max_len > cols)
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max_len = cols - 3;
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if (!symbol_conf.use_callchain)
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newtListboxSetWidth(tree, max_len);
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newtCenteredWindow(max_len + (symbol_conf.use_callchain ? 5 : 0),
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rows - 5, "Report");
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form = newt_form__new();
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newtFormAddHotKey(form, 'A');
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newtFormAddHotKey(form, 'a');
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newtFormAddHotKey(form, NEWT_KEY_RIGHT);
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newtFormAddComponents(form, tree, NULL);
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selection = newt__symbol_tree_get_current(tree);
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while (1) {
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char annotate[512];
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const char *options[2];
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int nr_options = 0, choice = 0;
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newtFormRun(form, &es);
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if (es.reason == NEWT_EXIT_HOTKEY) {
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if (toupper(es.u.key) == 'A')
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goto do_annotate;
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if (es.u.key == NEWT_KEY_ESCAPE ||
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toupper(es.u.key) == 'Q' ||
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es.u.key == CTRL('c')) {
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if (dialog_yesno("Do you really want to exit?"))
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break;
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else
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continue;
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}
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}
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if (selection->sym != NULL) {
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snprintf(annotate, sizeof(annotate),
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"Annotate %s", selection->sym->name);
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options[nr_options++] = annotate;
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}
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options[nr_options++] = "Exit";
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choice = popup_menu(nr_options, options);
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if (choice == nr_options - 1)
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break;
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do_annotate:
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if (selection->sym != NULL && choice >= 0) {
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if (selection->map->dso->origin == DSO__ORIG_KERNEL) {
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newtPopHelpLine();
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newtPushHelpLine("No vmlinux file found, can't "
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"annotate with just a "
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"kallsyms file");
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continue;
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}
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map_symbol__annotate_browser(selection);
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}
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}
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newtFormDestroy(form);
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newtPopWindow();
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}
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static char browser__last_msg[1024];
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int browser__show_help(const char *format, va_list ap)
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{
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int ret;
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static int backlog;
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ret = vsnprintf(browser__last_msg + backlog,
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sizeof(browser__last_msg) - backlog, format, ap);
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backlog += ret;
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if (browser__last_msg[backlog - 1] == '\n') {
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newtPopHelpLine();
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newtPushHelpLine(browser__last_msg);
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newtRefresh();
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backlog = 0;
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}
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return ret;
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}
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void setup_browser(void)
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{
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if (!isatty(1))
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return;
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use_browser = true;
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newtInit();
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newtCls();
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newtPushHelpLine(" ");
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}
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void exit_browser(bool wait_for_ok)
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{
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if (use_browser) {
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if (wait_for_ok) {
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char title[] = "Fatal Error", ok[] = "Ok";
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newtWinMessage(title, ok, browser__last_msg);
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}
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newtFinished();
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}
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}
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