Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / tools / perf / ui / browsers / map.c

diff --git a/kernel/tools/perf/ui/browsers/map.c b/kernel/tools/perf/ui/browsers/map.c
new file mode 100644 (file)
index 0000000..b11639f
--- /dev/null
+++ b/kernel/tools/perf/ui/browsers/map.c
@@ -0,0 +1,130 @@
+#include "../libslang.h"
+#include <elf.h>
+#include <inttypes.h>
+#include <sys/ttydefaults.h>
+#include <string.h>
+#include <linux/bitops.h>
+#include "../../util/util.h"
+#include "../../util/debug.h"
+#include "../../util/symbol.h"
+#include "../browser.h"
+#include "../helpline.h"
+#include "../keysyms.h"
+#include "map.h"
+
+struct map_browser {
+       struct ui_browser b;
+       struct map        *map;
+       u8                addrlen;
+};
+
+static void map_browser__write(struct ui_browser *browser, void *nd, int row)
+{
+       struct symbol *sym = rb_entry(nd, struct symbol, rb_node);
+       struct map_browser *mb = container_of(browser, struct map_browser, b);
+       bool current_entry = ui_browser__is_current_entry(browser, row);
+       int width;
+
+       ui_browser__set_percent_color(browser, 0, current_entry);
+       slsmg_printf("%*" PRIx64 " %*" PRIx64 " %c ",
+                    mb->addrlen, sym->start, mb->addrlen, sym->end,
+                    sym->binding == STB_GLOBAL ? 'g' :
+                    sym->binding == STB_LOCAL  ? 'l' : 'w');
+       width = browser->width - ((mb->addrlen * 2) + 4);
+       if (width > 0)
+               slsmg_write_nstring(sym->name, width);
+}
+
+/* FIXME uber-kludgy, see comment on cmd_report... */
+static u32 *symbol__browser_index(struct symbol *browser)
+{
+       return ((void *)browser) - sizeof(struct rb_node) - sizeof(u32);
+}
+
+static int map_browser__search(struct map_browser *browser)
+{
+       char target[512];
+       struct symbol *sym;
+       int err = ui_browser__input_window("Search by name/addr",
+                                          "Prefix with 0x to search by address",
+                                          target, "ENTER: OK, ESC: Cancel", 0);
+       if (err != K_ENTER)
+               return -1;
+
+       if (target[0] == '0' && tolower(target[1]) == 'x') {
+               u64 addr = strtoull(target, NULL, 16);
+               sym = map__find_symbol(browser->map, addr, NULL);
+       } else
+               sym = map__find_symbol_by_name(browser->map, target, NULL);
+
+       if (sym != NULL) {
+               u32 *idx = symbol__browser_index(sym);
+
+               browser->b.top = &sym->rb_node;
+               browser->b.index = browser->b.top_idx = *idx;
+       } else
+               ui_helpline__fpush("%s not found!", target);
+
+       return 0;
+}
+
+static int map_browser__run(struct map_browser *browser)
+{
+       int key;
+
+       if (ui_browser__show(&browser->b, browser->map->dso->long_name,
+                            "Press <- or ESC to exit, %s / to search",
+                            verbose ? "" : "restart with -v to use") < 0)
+               return -1;
+
+       while (1) {
+               key = ui_browser__run(&browser->b, 0);
+
+               switch (key) {
+               case '/':
+                       if (verbose)
+                               map_browser__search(browser);
+               default:
+                       break;
+                case K_LEFT:
+                case K_ESC:
+                case 'q':
+                case CTRL('c'):
+                        goto out;
+               }
+       }
+out:
+       ui_browser__hide(&browser->b);
+       return key;
+}
+
+int map__browse(struct map *map)
+{
+       struct map_browser mb = {
+               .b = {
+                       .entries = &map->dso->symbols[map->type],
+                       .refresh = ui_browser__rb_tree_refresh,
+                       .seek    = ui_browser__rb_tree_seek,
+                       .write   = map_browser__write,
+               },
+               .map = map,
+       };
+       struct rb_node *nd;
+       char tmp[BITS_PER_LONG / 4];
+       u64 maxaddr = 0;
+
+       for (nd = rb_first(mb.b.entries); nd; nd = rb_next(nd)) {
+               struct symbol *pos = rb_entry(nd, struct symbol, rb_node);
+
+               if (maxaddr < pos->end)
+                       maxaddr = pos->end;
+               if (verbose) {
+                       u32 *idx = symbol__browser_index(pos);
+                       *idx = mb.b.nr_entries;
+               }
+               ++mb.b.nr_entries;
+       }
+
+       mb.addrlen = snprintf(tmp, sizeof(tmp), "%" PRIx64, maxaddr);
+       return map_browser__run(&mb);
+}