perf tools: Move UI bits to tools/perf/ui directory

Move those files to new directory in order to be prepared to further UI
work. Makefile and header file pathes are adjusted accordingly.

Signed-off-by: Namhyung Kim <namhyung.kim@lge.com>
Suggested-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl
Link: http://lkml.kernel.org/r/1333523666-12057-1-git-send-email-namhyung.kim@lge.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 673 insertions, 0 deletions

diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
new file mode 100644
index 000000000000..4db5186472b5
--- /dev/null
+++ b/tools/perf/ui/browsers/annotate.c
@@ -0,0 +1,673 @@
+#include "../../util/util.h"
+#include "../browser.h"
+#include "../helpline.h"
+#include "../libslang.h"
+#include "../ui.h"
+#include "../util.h"
+#include "../../util/annotate.h"
+#include "../../util/hist.h"
+#include "../../util/sort.h"
+#include "../../util/symbol.h"
+#include <pthread.h>
+#include <newt.h>
+
+struct annotate_browser {
+        struct ui_browser b;
+        struct rb_root    entries;
+        struct rb_node    *curr_hot;
+        struct objdump_line *selection;
+        u64                 start;
+        int                 nr_asm_entries;
+        int                 nr_entries;
+        bool                hide_src_code;
+        bool                use_offset;
+        bool                searching_backwards;
+        char                search_bf[128];
+};
+
+struct objdump_line_rb_node {
+        struct rb_node  rb_node;
+        double          percent;
+        u32             idx;
+        int             idx_asm;
+};
+
+static inline
+struct objdump_line_rb_node *objdump_line__rb(struct objdump_line *self)
+{
+        return (struct objdump_line_rb_node *)(self + 1);
+}
+
+static bool objdump_line__filter(struct ui_browser *browser, void *entry)
+{
+        struct annotate_browser *ab = container_of(browser, struct annotate_browser, b);
+
+        if (ab->hide_src_code) {
+                struct objdump_line *ol = list_entry(entry, struct objdump_line, node);
+                return ol->offset == -1;
+        }
+
+        return false;
+}
+
+static void annotate_browser__write(struct ui_browser *self, void *entry, int row)
+{
+        struct annotate_browser *ab = container_of(self, struct annotate_browser, b);
+        struct objdump_line *ol = list_entry(entry, struct objdump_line, node);
+        bool current_entry = ui_browser__is_current_entry(self, row);
+        bool change_color = (!ab->hide_src_code &&
+                             (!current_entry || (self->use_navkeypressed &&
+                                                 !self->navkeypressed)));
+        int width = self->width;
+
+        if (ol->offset != -1) {
+                struct objdump_line_rb_node *olrb = objdump_line__rb(ol);
+                ui_browser__set_percent_color(self, olrb->percent, current_entry);
+                slsmg_printf(" %7.2f ", olrb->percent);
+        } else {
+                ui_browser__set_percent_color(self, 0, current_entry);
+                slsmg_write_nstring(" ", 9);
+        }
+
+        SLsmg_write_char(':');
+        slsmg_write_nstring(" ", 8);
+
+        /* The scroll bar isn't being used */
+        if (!self->navkeypressed)
+                width += 1;
+
+        if (ol->offset != -1 && change_color)
+                ui_browser__set_color(self, HE_COLORSET_CODE);
+
+        if (!*ol->line)
+                slsmg_write_nstring(" ", width - 18);
+        else if (ol->offset == -1)
+                slsmg_write_nstring(ol->line, width - 18);
+        else {
+                char bf[64];
+                u64 addr = ol->offset;
+                int printed, color = -1;
+
+                if (!ab->use_offset)
+                        addr += ab->start;
+
+                printed = scnprintf(bf, sizeof(bf), " %" PRIx64 ":", addr);
+                if (change_color)
+                        color = ui_browser__set_color(self, HE_COLORSET_ADDR);
+                slsmg_write_nstring(bf, printed);
+                if (change_color)
+                        ui_browser__set_color(self, color);
+                slsmg_write_nstring(ol->line, width - 18 - printed);
+        }
+
+        if (current_entry)
+                ab->selection = ol;
+}
+
+static double objdump_line__calc_percent(struct objdump_line *self,
+                                         struct symbol *sym, int evidx)
+{
+        double percent = 0.0;
+
+        if (self->offset != -1) {
+                int len = sym->end - sym->start;
+                unsigned int hits = 0;
+                struct annotation *notes = symbol__annotation(sym);
+                struct source_line *src_line = notes->src->lines;
+                struct sym_hist *h = annotation__histogram(notes, evidx);
+                s64 offset = self->offset;
+                struct objdump_line *next;
+
+                next = objdump__get_next_ip_line(&notes->src->source, self);
+                while (offset < (s64)len &&
+                       (next == NULL || offset < next->offset)) {
+                        if (src_line) {
+                                percent += src_line[offset].percent;
+                        } else
+                                hits += h->addr[offset];
+
+                        ++offset;
+                }
+                /*
+                 * If the percentage wasn't already calculated in
+                 * symbol__get_source_line, do it now:
+                 */
+                if (src_line == NULL && h->sum)
+                        percent = 100.0 * hits / h->sum;
+        }
+
+        return percent;
+}
+
+static void objdump__insert_line(struct rb_root *self,
+                                 struct objdump_line_rb_node *line)
+{
+        struct rb_node **p = &self->rb_node;
+        struct rb_node *parent = NULL;
+        struct objdump_line_rb_node *l;
+
+        while (*p != NULL) {
+                parent = *p;
+                l = rb_entry(parent, struct objdump_line_rb_node, rb_node);
+                if (line->percent < l->percent)
+                        p = &(*p)->rb_left;
+                else
+                        p = &(*p)->rb_right;
+        }
+        rb_link_node(&line->rb_node, parent, p);
+        rb_insert_color(&line->rb_node, self);
+}
+
+static void annotate_browser__set_top(struct annotate_browser *self,
+                                      struct objdump_line *pos, u32 idx)
+{
+        unsigned back;
+
+        ui_browser__refresh_dimensions(&self->b);
+        back = self->b.height / 2;
+        self->b.top_idx = self->b.index = idx;
+
+        while (self->b.top_idx != 0 && back != 0) {
+                pos = list_entry(pos->node.prev, struct objdump_line, node);
+
+                if (objdump_line__filter(&self->b, &pos->node))
+                        continue;
+
+                --self->b.top_idx;
+                --back;
+        }
+
+        self->b.top = pos;
+        self->b.navkeypressed = true;
+}
+
+static void annotate_browser__set_rb_top(struct annotate_browser *browser,
+                                         struct rb_node *nd)
+{
+        struct objdump_line_rb_node *rbpos;
+        struct objdump_line *pos;
+
+        rbpos = rb_entry(nd, struct objdump_line_rb_node, rb_node);
+        pos = ((struct objdump_line *)rbpos) - 1;
+        annotate_browser__set_top(browser, pos, rbpos->idx);
+        browser->curr_hot = nd;
+}
+
+static void annotate_browser__calc_percent(struct annotate_browser *browser,
+                                           int evidx)
+{
+        struct map_symbol *ms = browser->b.priv;
+        struct symbol *sym = ms->sym;
+        struct annotation *notes = symbol__annotation(sym);
+        struct objdump_line *pos;
+
+        browser->entries = RB_ROOT;
+
+        pthread_mutex_lock(&notes->lock);
+
+        list_for_each_entry(pos, &notes->src->source, node) {
+                struct objdump_line_rb_node *rbpos = objdump_line__rb(pos);
+                rbpos->percent = objdump_line__calc_percent(pos, sym, evidx);
+                if (rbpos->percent < 0.01) {
+                        RB_CLEAR_NODE(&rbpos->rb_node);
+                        continue;
+                }
+                objdump__insert_line(&browser->entries, rbpos);
+        }
+        pthread_mutex_unlock(&notes->lock);
+
+        browser->curr_hot = rb_last(&browser->entries);
+}
+
+static bool annotate_browser__toggle_source(struct annotate_browser *browser)
+{
+        struct objdump_line *ol;
+        struct objdump_line_rb_node *olrb;
+        off_t offset = browser->b.index - browser->b.top_idx;
+
+        browser->b.seek(&browser->b, offset, SEEK_CUR);
+        ol = list_entry(browser->b.top, struct objdump_line, node);
+        olrb = objdump_line__rb(ol);
+
+        if (browser->hide_src_code) {
+                if (olrb->idx_asm < offset)
+                        offset = olrb->idx;
+
+                browser->b.nr_entries = browser->nr_entries;
+                browser->hide_src_code = false;
+                browser->b.seek(&browser->b, -offset, SEEK_CUR);
+                browser->b.top_idx = olrb->idx - offset;
+                browser->b.index = olrb->idx;
+        } else {
+                if (olrb->idx_asm < 0) {
+                        ui_helpline__puts("Only available for assembly lines.");
+                        browser->b.seek(&browser->b, -offset, SEEK_CUR);
+                        return false;
+                }
+
+                if (olrb->idx_asm < offset)
+                        offset = olrb->idx_asm;
+
+                browser->b.nr_entries = browser->nr_asm_entries;
+                browser->hide_src_code = true;
+                browser->b.seek(&browser->b, -offset, SEEK_CUR);
+                browser->b.top_idx = olrb->idx_asm - offset;
+                browser->b.index = olrb->idx_asm;
+        }
+
+        return true;
+}
+
+static bool annotate_browser__callq(struct annotate_browser *browser,
+                                    int evidx, void (*timer)(void *arg),
+                                    void *arg, int delay_secs)
+{
+        struct map_symbol *ms = browser->b.priv;
+        struct symbol *sym = ms->sym;
+        struct annotation *notes;
+        struct symbol *target;
+        char *s = strstr(browser->selection->line, "callq ");
+        u64 ip;
+
+        if (s == NULL)
+                return false;
+
+        s = strchr(s, ' ');
+        if (s++ == NULL) {
+                ui_helpline__puts("Invallid callq instruction.");
+                return true;
+        }
+
+        ip = strtoull(s, NULL, 16);
+        ip = ms->map->map_ip(ms->map, ip);
+        target = map__find_symbol(ms->map, ip, NULL);
+        if (target == NULL) {
+                ui_helpline__puts("The called function was not found.");
+                return true;
+        }
+
+        notes = symbol__annotation(target);
+        pthread_mutex_lock(&notes->lock);
+
+        if (notes->src == NULL && symbol__alloc_hist(target) < 0) {
+                pthread_mutex_unlock(&notes->lock);
+                ui__warning("Not enough memory for annotating '%s' symbol!\n",
+                            target->name);
+                return true;
+        }
+
+        pthread_mutex_unlock(&notes->lock);
+        symbol__tui_annotate(target, ms->map, evidx, timer, arg, delay_secs);
+        ui_browser__show_title(&browser->b, sym->name);
+        return true;
+}
+
+static struct objdump_line *
+        annotate_browser__find_offset(struct annotate_browser *browser,
+                                      s64 offset, s64 *idx)
+{
+        struct map_symbol *ms = browser->b.priv;
+        struct symbol *sym = ms->sym;
+        struct annotation *notes = symbol__annotation(sym);
+        struct objdump_line *pos;
+
+        *idx = 0;
+        list_for_each_entry(pos, &notes->src->source, node) {
+                if (pos->offset == offset)
+                        return pos;
+                if (!objdump_line__filter(&browser->b, &pos->node))
+                        ++*idx;
+        }
+
+        return NULL;
+}
+
+static bool annotate_browser__jump(struct annotate_browser *browser)
+{
+        const char *jumps[] = { "je ", "jne ", "ja ", "jmpq ", "js ", "jmp ", NULL };
+        struct objdump_line *line;
+        s64 idx, offset;
+        char *s = NULL;
+        int i = 0;
+
+        while (jumps[i]) {
+                s = strstr(browser->selection->line, jumps[i++]);
+                if (s)
+                        break;
+        }
+
+        if (s == NULL)
+                return false;
+
+        s = strchr(s, '+');
+        if (s++ == NULL) {
+                ui_helpline__puts("Invallid jump instruction.");
+                return true;
+        }
+
+        offset = strtoll(s, NULL, 16);
+        line = annotate_browser__find_offset(browser, offset, &idx);
+        if (line == NULL) {
+                ui_helpline__puts("Invallid jump offset");
+                return true;
+        }
+
+        annotate_browser__set_top(browser, line, idx);
+        
+        return true;
+}
+
+static struct objdump_line *
+        annotate_browser__find_string(struct annotate_browser *browser,
+                                      char *s, s64 *idx)
+{
+        struct map_symbol *ms = browser->b.priv;
+        struct symbol *sym = ms->sym;
+        struct annotation *notes = symbol__annotation(sym);
+        struct objdump_line *pos = browser->selection;
+
+        *idx = browser->b.index;
+        list_for_each_entry_continue(pos, &notes->src->source, node) {
+                if (objdump_line__filter(&browser->b, &pos->node))
+                        continue;
+
+                ++*idx;
+
+                if (pos->line && strstr(pos->line, s) != NULL)
+                        return pos;
+        }
+
+        return NULL;
+}
+
+static bool __annotate_browser__search(struct annotate_browser *browser)
+{
+        struct objdump_line *line;
+        s64 idx;
+
+        line = annotate_browser__find_string(browser, browser->search_bf, &idx);
+        if (line == NULL) {
+                ui_helpline__puts("String not found!");
+                return false;
+        }
+
+        annotate_browser__set_top(browser, line, idx);
+        browser->searching_backwards = false;
+        return true;
+}
+
+static struct objdump_line *
+        annotate_browser__find_string_reverse(struct annotate_browser *browser,
+                                              char *s, s64 *idx)
+{
+        struct map_symbol *ms = browser->b.priv;
+        struct symbol *sym = ms->sym;
+        struct annotation *notes = symbol__annotation(sym);
+        struct objdump_line *pos = browser->selection;
+
+        *idx = browser->b.index;
+        list_for_each_entry_continue_reverse(pos, &notes->src->source, node) {
+                if (objdump_line__filter(&browser->b, &pos->node))
+                        continue;
+
+                --*idx;
+
+                if (pos->line && strstr(pos->line, s) != NULL)
+                        return pos;
+        }
+
+        return NULL;
+}
+
+static bool __annotate_browser__search_reverse(struct annotate_browser *browser)
+{
+        struct objdump_line *line;
+        s64 idx;
+
+        line = annotate_browser__find_string_reverse(browser, browser->search_bf, &idx);
+        if (line == NULL) {
+                ui_helpline__puts("String not found!");
+                return false;
+        }
+
+        annotate_browser__set_top(browser, line, idx);
+        browser->searching_backwards = true;
+        return true;
+}
+
+static bool annotate_browser__search_window(struct annotate_browser *browser,
+                                            int delay_secs)
+{
+        if (ui_browser__input_window("Search", "String: ", browser->search_bf,
+                                     "ENTER: OK, ESC: Cancel",
+                                     delay_secs * 2) != K_ENTER ||
+            !*browser->search_bf)
+                return false;
+
+        return true;
+}
+
+static bool annotate_browser__search(struct annotate_browser *browser, int delay_secs)
+{
+        if (annotate_browser__search_window(browser, delay_secs))
+                return __annotate_browser__search(browser);
+
+        return false;
+}
+
+static bool annotate_browser__continue_search(struct annotate_browser *browser,
+                                              int delay_secs)
+{
+        if (!*browser->search_bf)
+                return annotate_browser__search(browser, delay_secs);
+
+        return __annotate_browser__search(browser);
+}
+
+static bool annotate_browser__search_reverse(struct annotate_browser *browser,
+                                           int delay_secs)
+{
+        if (annotate_browser__search_window(browser, delay_secs))
+                return __annotate_browser__search_reverse(browser);
+
+        return false;
+}
+
+static
+bool annotate_browser__continue_search_reverse(struct annotate_browser *browser,
+                                               int delay_secs)
+{
+        if (!*browser->search_bf)
+                return annotate_browser__search_reverse(browser, delay_secs);
+
+        return __annotate_browser__search_reverse(browser);
+}
+
+static int annotate_browser__run(struct annotate_browser *self, int evidx,
+                                 void(*timer)(void *arg),
+                                 void *arg, int delay_secs)
+{
+        struct rb_node *nd = NULL;
+        struct map_symbol *ms = self->b.priv;
+        struct symbol *sym = ms->sym;
+        const char *help = "<-/ESC: Exit, TAB/shift+TAB: Cycle hot lines, "
+                           "H: Go to hottest line, ->/ENTER: Line action, "
+                           "O: Toggle offset view, "
+                           "S: Toggle source code view";
+        int key;
+
+        if (ui_browser__show(&self->b, sym->name, help) < 0)
+                return -1;
+
+        annotate_browser__calc_percent(self, evidx);
+
+        if (self->curr_hot) {
+                annotate_browser__set_rb_top(self, self->curr_hot);
+                self->b.navkeypressed = false;
+        }
+
+        nd = self->curr_hot;
+
+        while (1) {
+                key = ui_browser__run(&self->b, delay_secs);
+
+                if (delay_secs != 0) {
+                        annotate_browser__calc_percent(self, evidx);
+                        /*
+                         * Current line focus got out of the list of most active
+                         * lines, NULL it so that if TAB|UNTAB is pressed, we
+                         * move to curr_hot (current hottest line).
+                         */
+                        if (nd != NULL && RB_EMPTY_NODE(nd))
+                                nd = NULL;
+                }
+
+                switch (key) {
+                case K_TIMER:
+                        if (timer != NULL)
+                                timer(arg);
+
+                        if (delay_secs != 0)
+                                symbol__annotate_decay_histogram(sym, evidx);
+                        continue;
+                case K_TAB:
+                        if (nd != NULL) {
+                                nd = rb_prev(nd);
+                                if (nd == NULL)
+                                        nd = rb_last(&self->entries);
+                        } else
+                                nd = self->curr_hot;
+                        break;
+                case K_UNTAB:
+                        if (nd != NULL)
+                                nd = rb_next(nd);
+                                if (nd == NULL)
+                                        nd = rb_first(&self->entries);
+                        else
+                                nd = self->curr_hot;
+                        break;
+                case 'H':
+                case 'h':
+                        nd = self->curr_hot;
+                        break;
+                case 'S':
+                case 's':
+                        if (annotate_browser__toggle_source(self))
+                                ui_helpline__puts(help);
+                        continue;
+                case 'O':
+                case 'o':
+                        self->use_offset = !self->use_offset;
+                        continue;
+                case '/':
+                        if (annotate_browser__search(self, delay_secs)) {
+show_help:
+                                ui_helpline__puts(help);
+                        }
+                        continue;
+                case 'n':
+                        if (self->searching_backwards ?
+                            annotate_browser__continue_search_reverse(self, delay_secs) :
+                            annotate_browser__continue_search(self, delay_secs))
+                                goto show_help;
+                        continue;
+                case '?':
+                        if (annotate_browser__search_reverse(self, delay_secs))
+                                goto show_help;
+                        continue;
+                case K_ENTER:
+                case K_RIGHT:
+                        if (self->selection == NULL)
+                                ui_helpline__puts("Huh? No selection. Report to linux-kernel@vger.kernel.org");
+                        else if (self->selection->offset == -1)
+                                ui_helpline__puts("Actions are only available for assembly lines.");
+                        else if (!(annotate_browser__jump(self) ||
+                                   annotate_browser__callq(self, evidx, timer, arg, delay_secs)))
+                                ui_helpline__puts("Actions are only available for the 'callq' and jump instructions.");
+                        continue;
+                case K_LEFT:
+                case K_ESC:
+                case 'q':
+                case CTRL('c'):
+                        goto out;
+                default:
+                        continue;
+                }
+
+                if (nd != NULL)
+                        annotate_browser__set_rb_top(self, nd);
+        }
+out:
+        ui_browser__hide(&self->b);
+        return key;
+}
+
+int hist_entry__tui_annotate(struct hist_entry *he, int evidx,
+                             void(*timer)(void *arg), void *arg, int delay_secs)
+{
+        return symbol__tui_annotate(he->ms.sym, he->ms.map, evidx,
+                                    timer, arg, delay_secs);
+}
+
+int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx,
+                         void(*timer)(void *arg), void *arg,
+                         int delay_secs)
+{
+        struct objdump_line *pos, *n;
+        struct annotation *notes;
+        struct map_symbol ms = {
+                .map = map,
+                .sym = sym,
+        };
+        struct annotate_browser browser = {
+                .b = {
+                        .refresh = ui_browser__list_head_refresh,
+                        .seek    = ui_browser__list_head_seek,
+                        .write   = annotate_browser__write,
+                        .filter  = objdump_line__filter,
+                        .priv    = &ms,
+                        .use_navkeypressed = true,
+                },
+        };
+        int ret;
+
+        if (sym == NULL)
+                return -1;
+
+        if (map->dso->annotate_warned)
+                return -1;
+
+        if (symbol__annotate(sym, map, sizeof(struct objdump_line_rb_node)) < 0) {
+                ui__error("%s", ui_helpline__last_msg);
+                return -1;
+        }
+
+        ui_helpline__push("Press <- or ESC to exit");
+
+        notes = symbol__annotation(sym);
+        browser.start = map__rip_2objdump(map, sym->start);
+
+        list_for_each_entry(pos, &notes->src->source, node) {
+                struct objdump_line_rb_node *rbpos;
+                size_t line_len = strlen(pos->line);
+
+                if (browser.b.width < line_len)
+                        browser.b.width = line_len;
+                rbpos = objdump_line__rb(pos);
+                rbpos->idx = browser.nr_entries++;
+                if (pos->offset != -1)
+                        rbpos->idx_asm = browser.nr_asm_entries++;
+                else
+                        rbpos->idx_asm = -1;
+        }
+
+        browser.b.nr_entries = browser.nr_entries;
+        browser.b.entries = &notes->src->source,
+        browser.b.width += 18; /* Percentage */
+        ret = annotate_browser__run(&browser, evidx, timer, arg, delay_secs);
+        list_for_each_entry_safe(pos, n, &notes->src->source, node) {
+                list_del(&pos->node);
+                objdump_line__free(pos);
+        }
+        return ret;
+}