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be8ecc57f1
Invoking addr2line in a separate subprocess, one for each required lookup, takes a terribly long time. This patch introduces a long-running addr2line process for each DSO, *DRAMATICALLY* speeding up runs of perf. What used to take tens of minutes now takes tens of seconds. Debian bug report about this issue: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=911815 Signed-off-by: Tony Garnock-Jones <tonyg@leastfixedpoint.com> Tested-by: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20210916120939.453536-1-tonyg@leastfixedpoint.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
921 lines
19 KiB
C
921 lines
19 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <inttypes.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <linux/kernel.h>
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#include <linux/string.h>
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#include <linux/zalloc.h>
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#include "util/dso.h"
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#include "util/debug.h"
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#include "util/callchain.h"
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#include "util/symbol_conf.h"
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#include "srcline.h"
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#include "string2.h"
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#include "symbol.h"
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#include "subcmd/run-command.h"
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bool srcline_full_filename;
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static const char *dso__name(struct dso *dso)
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{
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const char *dso_name;
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if (dso->symsrc_filename)
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dso_name = dso->symsrc_filename;
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else
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dso_name = dso->long_name;
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if (dso_name[0] == '[')
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return NULL;
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if (!strncmp(dso_name, "/tmp/perf-", 10))
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return NULL;
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return dso_name;
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}
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static int inline_list__append(struct symbol *symbol, char *srcline,
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struct inline_node *node)
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{
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struct inline_list *ilist;
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ilist = zalloc(sizeof(*ilist));
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if (ilist == NULL)
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return -1;
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ilist->symbol = symbol;
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ilist->srcline = srcline;
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if (callchain_param.order == ORDER_CALLEE)
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list_add_tail(&ilist->list, &node->val);
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else
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list_add(&ilist->list, &node->val);
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return 0;
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}
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/* basename version that takes a const input string */
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static const char *gnu_basename(const char *path)
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{
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const char *base = strrchr(path, '/');
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return base ? base + 1 : path;
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}
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static char *srcline_from_fileline(const char *file, unsigned int line)
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{
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char *srcline;
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if (!file)
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return NULL;
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if (!srcline_full_filename)
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file = gnu_basename(file);
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if (asprintf(&srcline, "%s:%u", file, line) < 0)
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return NULL;
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return srcline;
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}
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static struct symbol *new_inline_sym(struct dso *dso,
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struct symbol *base_sym,
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const char *funcname)
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{
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struct symbol *inline_sym;
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char *demangled = NULL;
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if (!funcname)
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funcname = "??";
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if (dso) {
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demangled = dso__demangle_sym(dso, 0, funcname);
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if (demangled)
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funcname = demangled;
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}
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if (base_sym && strcmp(funcname, base_sym->name) == 0) {
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/* reuse the real, existing symbol */
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inline_sym = base_sym;
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/* ensure that we don't alias an inlined symbol, which could
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* lead to double frees in inline_node__delete
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*/
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assert(!base_sym->inlined);
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} else {
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/* create a fake symbol for the inline frame */
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inline_sym = symbol__new(base_sym ? base_sym->start : 0,
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base_sym ? (base_sym->end - base_sym->start) : 0,
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base_sym ? base_sym->binding : 0,
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base_sym ? base_sym->type : 0,
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funcname);
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if (inline_sym)
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inline_sym->inlined = 1;
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}
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free(demangled);
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return inline_sym;
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}
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#define MAX_INLINE_NEST 1024
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#ifdef HAVE_LIBBFD_SUPPORT
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/*
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* Implement addr2line using libbfd.
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*/
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#define PACKAGE "perf"
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#include <bfd.h>
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struct a2l_data {
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const char *input;
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u64 addr;
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bool found;
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const char *filename;
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const char *funcname;
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unsigned line;
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bfd *abfd;
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asymbol **syms;
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};
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static int bfd_error(const char *string)
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{
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const char *errmsg;
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errmsg = bfd_errmsg(bfd_get_error());
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fflush(stdout);
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if (string)
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pr_debug("%s: %s\n", string, errmsg);
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else
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pr_debug("%s\n", errmsg);
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return -1;
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}
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static int slurp_symtab(bfd *abfd, struct a2l_data *a2l)
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{
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long storage;
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long symcount;
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asymbol **syms;
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bfd_boolean dynamic = FALSE;
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if ((bfd_get_file_flags(abfd) & HAS_SYMS) == 0)
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return bfd_error(bfd_get_filename(abfd));
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storage = bfd_get_symtab_upper_bound(abfd);
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if (storage == 0L) {
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storage = bfd_get_dynamic_symtab_upper_bound(abfd);
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dynamic = TRUE;
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}
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if (storage < 0L)
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return bfd_error(bfd_get_filename(abfd));
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syms = malloc(storage);
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if (dynamic)
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symcount = bfd_canonicalize_dynamic_symtab(abfd, syms);
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else
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symcount = bfd_canonicalize_symtab(abfd, syms);
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if (symcount < 0) {
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free(syms);
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return bfd_error(bfd_get_filename(abfd));
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}
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a2l->syms = syms;
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return 0;
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}
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static void find_address_in_section(bfd *abfd, asection *section, void *data)
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{
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bfd_vma pc, vma;
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bfd_size_type size;
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struct a2l_data *a2l = data;
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flagword flags;
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if (a2l->found)
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return;
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#ifdef bfd_get_section_flags
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flags = bfd_get_section_flags(abfd, section);
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#else
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flags = bfd_section_flags(section);
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#endif
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if ((flags & SEC_ALLOC) == 0)
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return;
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pc = a2l->addr;
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#ifdef bfd_get_section_vma
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vma = bfd_get_section_vma(abfd, section);
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#else
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vma = bfd_section_vma(section);
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#endif
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#ifdef bfd_get_section_size
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size = bfd_get_section_size(section);
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#else
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size = bfd_section_size(section);
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#endif
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if (pc < vma || pc >= vma + size)
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return;
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a2l->found = bfd_find_nearest_line(abfd, section, a2l->syms, pc - vma,
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&a2l->filename, &a2l->funcname,
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&a2l->line);
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if (a2l->filename && !strlen(a2l->filename))
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a2l->filename = NULL;
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}
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static struct a2l_data *addr2line_init(const char *path)
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{
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bfd *abfd;
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struct a2l_data *a2l = NULL;
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abfd = bfd_openr(path, NULL);
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if (abfd == NULL)
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return NULL;
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if (!bfd_check_format(abfd, bfd_object))
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goto out;
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a2l = zalloc(sizeof(*a2l));
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if (a2l == NULL)
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goto out;
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a2l->abfd = abfd;
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a2l->input = strdup(path);
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if (a2l->input == NULL)
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goto out;
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if (slurp_symtab(abfd, a2l))
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goto out;
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return a2l;
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out:
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if (a2l) {
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zfree((char **)&a2l->input);
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free(a2l);
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}
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bfd_close(abfd);
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return NULL;
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}
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static void addr2line_cleanup(struct a2l_data *a2l)
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{
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if (a2l->abfd)
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bfd_close(a2l->abfd);
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zfree((char **)&a2l->input);
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zfree(&a2l->syms);
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free(a2l);
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}
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static int inline_list__append_dso_a2l(struct dso *dso,
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struct inline_node *node,
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struct symbol *sym)
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{
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struct a2l_data *a2l = dso->a2l;
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struct symbol *inline_sym = new_inline_sym(dso, sym, a2l->funcname);
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char *srcline = NULL;
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if (a2l->filename)
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srcline = srcline_from_fileline(a2l->filename, a2l->line);
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return inline_list__append(inline_sym, srcline, node);
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}
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static int addr2line(const char *dso_name, u64 addr,
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char **file, unsigned int *line, struct dso *dso,
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bool unwind_inlines, struct inline_node *node,
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struct symbol *sym)
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{
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int ret = 0;
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struct a2l_data *a2l = dso->a2l;
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if (!a2l) {
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dso->a2l = addr2line_init(dso_name);
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a2l = dso->a2l;
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}
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if (a2l == NULL) {
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if (!symbol_conf.disable_add2line_warn)
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pr_warning("addr2line_init failed for %s\n", dso_name);
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return 0;
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}
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a2l->addr = addr;
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a2l->found = false;
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bfd_map_over_sections(a2l->abfd, find_address_in_section, a2l);
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if (!a2l->found)
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return 0;
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if (unwind_inlines) {
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int cnt = 0;
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if (node && inline_list__append_dso_a2l(dso, node, sym))
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return 0;
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while (bfd_find_inliner_info(a2l->abfd, &a2l->filename,
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&a2l->funcname, &a2l->line) &&
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cnt++ < MAX_INLINE_NEST) {
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if (a2l->filename && !strlen(a2l->filename))
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a2l->filename = NULL;
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if (node != NULL) {
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if (inline_list__append_dso_a2l(dso, node, sym))
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return 0;
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// found at least one inline frame
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ret = 1;
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}
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}
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}
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if (file) {
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*file = a2l->filename ? strdup(a2l->filename) : NULL;
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ret = *file ? 1 : 0;
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}
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if (line)
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*line = a2l->line;
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return ret;
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}
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void dso__free_a2l(struct dso *dso)
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{
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struct a2l_data *a2l = dso->a2l;
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if (!a2l)
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return;
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addr2line_cleanup(a2l);
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dso->a2l = NULL;
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}
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#else /* HAVE_LIBBFD_SUPPORT */
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struct a2l_subprocess {
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struct child_process addr2line;
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FILE *to_child;
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FILE *from_child;
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};
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static int filename_split(char *filename, unsigned int *line_nr)
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{
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char *sep;
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sep = strchr(filename, '\n');
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if (sep)
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*sep = '\0';
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if (!strcmp(filename, "??:0"))
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return 0;
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sep = strchr(filename, ':');
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if (sep) {
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*sep++ = '\0';
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*line_nr = strtoul(sep, NULL, 0);
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return 1;
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}
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return 0;
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}
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static void addr2line_subprocess_cleanup(struct a2l_subprocess *a2l)
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{
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if (a2l->addr2line.pid != -1) {
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kill(a2l->addr2line.pid, SIGKILL);
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finish_command(&a2l->addr2line); /* ignore result, we don't care */
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a2l->addr2line.pid = -1;
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}
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if (a2l->to_child != NULL) {
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fclose(a2l->to_child);
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a2l->to_child = NULL;
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}
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if (a2l->from_child != NULL) {
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fclose(a2l->from_child);
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a2l->from_child = NULL;
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}
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free(a2l);
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}
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static struct a2l_subprocess *addr2line_subprocess_init(const char *path)
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{
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const char *argv[] = { "addr2line", "-e", path, "-i", "-f", NULL };
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struct a2l_subprocess *a2l = zalloc(sizeof(*a2l));
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int start_command_status = 0;
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if (a2l == NULL)
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goto out;
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a2l->to_child = NULL;
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a2l->from_child = NULL;
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a2l->addr2line.pid = -1;
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a2l->addr2line.in = -1;
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a2l->addr2line.out = -1;
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a2l->addr2line.no_stderr = 1;
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a2l->addr2line.argv = argv;
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start_command_status = start_command(&a2l->addr2line);
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a2l->addr2line.argv = NULL; /* it's not used after start_command; avoid dangling pointers */
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if (start_command_status != 0) {
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pr_warning("could not start addr2line for %s: start_command return code %d\n",
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path,
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start_command_status);
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goto out;
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}
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a2l->to_child = fdopen(a2l->addr2line.in, "w");
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if (a2l->to_child == NULL) {
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pr_warning("could not open write-stream to addr2line of %s\n", path);
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goto out;
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}
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a2l->from_child = fdopen(a2l->addr2line.out, "r");
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if (a2l->from_child == NULL) {
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pr_warning("could not open read-stream from addr2line of %s\n", path);
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goto out;
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}
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return a2l;
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out:
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if (a2l)
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addr2line_subprocess_cleanup(a2l);
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return NULL;
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}
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static int read_addr2line_record(struct a2l_subprocess *a2l,
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char **function,
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char **filename,
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unsigned int *line_nr)
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{
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/*
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* Returns:
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* -1 ==> error
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* 0 ==> sentinel (or other ill-formed) record read
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* 1 ==> a genuine record read
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*/
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char *line = NULL;
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size_t line_len = 0;
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unsigned int dummy_line_nr = 0;
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int ret = -1;
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if (function != NULL)
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zfree(function);
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if (filename != NULL)
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zfree(filename);
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if (line_nr != NULL)
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*line_nr = 0;
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if (getline(&line, &line_len, a2l->from_child) < 0 || !line_len)
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goto error;
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if (function != NULL)
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*function = strdup(strim(line));
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zfree(&line);
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line_len = 0;
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if (getline(&line, &line_len, a2l->from_child) < 0 || !line_len)
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goto error;
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if (filename_split(line, line_nr == NULL ? &dummy_line_nr : line_nr) == 0) {
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ret = 0;
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goto error;
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}
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if (filename != NULL)
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*filename = strdup(line);
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zfree(&line);
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line_len = 0;
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return 1;
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error:
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free(line);
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if (function != NULL)
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zfree(function);
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if (filename != NULL)
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zfree(filename);
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return ret;
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}
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|
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static int inline_list__append_record(struct dso *dso,
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struct inline_node *node,
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struct symbol *sym,
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const char *function,
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const char *filename,
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unsigned int line_nr)
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{
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struct symbol *inline_sym = new_inline_sym(dso, sym, function);
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return inline_list__append(inline_sym, srcline_from_fileline(filename, line_nr), node);
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}
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|
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static int addr2line(const char *dso_name, u64 addr,
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char **file, unsigned int *line_nr,
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struct dso *dso,
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bool unwind_inlines,
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struct inline_node *node,
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struct symbol *sym __maybe_unused)
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|
{
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struct a2l_subprocess *a2l = dso->a2l;
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char *record_function = NULL;
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char *record_filename = NULL;
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unsigned int record_line_nr = 0;
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int record_status = -1;
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int ret = 0;
|
|
size_t inline_count = 0;
|
|
|
|
if (!a2l) {
|
|
dso->a2l = addr2line_subprocess_init(dso_name);
|
|
a2l = dso->a2l;
|
|
}
|
|
|
|
if (a2l == NULL) {
|
|
if (!symbol_conf.disable_add2line_warn)
|
|
pr_warning("%s %s: addr2line_subprocess_init failed\n", __func__, dso_name);
|
|
goto out;
|
|
}
|
|
|
|
/*
|
|
* Send our request and then *deliberately* send something that can't be interpreted as
|
|
* a valid address to ask addr2line about (namely, ","). This causes addr2line to first
|
|
* write out the answer to our request, in an unbounded/unknown number of records, and
|
|
* then to write out the lines "??" and "??:0", so that we can detect when it has
|
|
* finished giving us anything useful. We have to be careful about the first record,
|
|
* though, because it may be genuinely unknown, in which case we'll get two sets of
|
|
* "??"/"??:0" lines.
|
|
*/
|
|
if (fprintf(a2l->to_child, "%016"PRIx64"\n,\n", addr) < 0 || fflush(a2l->to_child) != 0) {
|
|
pr_warning("%s %s: could not send request\n", __func__, dso_name);
|
|
goto out;
|
|
}
|
|
|
|
switch (read_addr2line_record(a2l, &record_function, &record_filename, &record_line_nr)) {
|
|
case -1:
|
|
pr_warning("%s %s: could not read first record\n", __func__, dso_name);
|
|
goto out;
|
|
case 0:
|
|
/*
|
|
* The first record was invalid, so return failure, but first read another
|
|
* record, since we asked a junk question and have to clear the answer out.
|
|
*/
|
|
switch (read_addr2line_record(a2l, NULL, NULL, NULL)) {
|
|
case -1:
|
|
pr_warning("%s %s: could not read delimiter record\n", __func__, dso_name);
|
|
break;
|
|
case 0:
|
|
/* As expected. */
|
|
break;
|
|
default:
|
|
pr_warning("%s %s: unexpected record instead of sentinel",
|
|
__func__, dso_name);
|
|
break;
|
|
}
|
|
goto out;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (file) {
|
|
*file = strdup(record_filename);
|
|
ret = 1;
|
|
}
|
|
if (line_nr)
|
|
*line_nr = record_line_nr;
|
|
|
|
if (unwind_inlines) {
|
|
if (node && inline_list__append_record(dso, node, sym,
|
|
record_function,
|
|
record_filename,
|
|
record_line_nr)) {
|
|
ret = 0;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
/* We have to read the records even if we don't care about the inline info. */
|
|
while ((record_status = read_addr2line_record(a2l,
|
|
&record_function,
|
|
&record_filename,
|
|
&record_line_nr)) == 1) {
|
|
if (unwind_inlines && node && inline_count++ < MAX_INLINE_NEST) {
|
|
if (inline_list__append_record(dso, node, sym,
|
|
record_function,
|
|
record_filename,
|
|
record_line_nr)) {
|
|
ret = 0;
|
|
goto out;
|
|
}
|
|
ret = 1; /* found at least one inline frame */
|
|
}
|
|
}
|
|
|
|
out:
|
|
free(record_function);
|
|
free(record_filename);
|
|
return ret;
|
|
}
|
|
|
|
void dso__free_a2l(struct dso *dso)
|
|
{
|
|
struct a2l_subprocess *a2l = dso->a2l;
|
|
|
|
if (!a2l)
|
|
return;
|
|
|
|
addr2line_subprocess_cleanup(a2l);
|
|
|
|
dso->a2l = NULL;
|
|
}
|
|
|
|
#endif /* HAVE_LIBBFD_SUPPORT */
|
|
|
|
static struct inline_node *addr2inlines(const char *dso_name, u64 addr,
|
|
struct dso *dso, struct symbol *sym)
|
|
{
|
|
struct inline_node *node;
|
|
|
|
node = zalloc(sizeof(*node));
|
|
if (node == NULL) {
|
|
perror("not enough memory for the inline node");
|
|
return NULL;
|
|
}
|
|
|
|
INIT_LIST_HEAD(&node->val);
|
|
node->addr = addr;
|
|
|
|
addr2line(dso_name, addr, NULL, NULL, dso, true, node, sym);
|
|
return node;
|
|
}
|
|
|
|
/*
|
|
* Number of addr2line failures (without success) before disabling it for that
|
|
* dso.
|
|
*/
|
|
#define A2L_FAIL_LIMIT 123
|
|
|
|
char *__get_srcline(struct dso *dso, u64 addr, struct symbol *sym,
|
|
bool show_sym, bool show_addr, bool unwind_inlines,
|
|
u64 ip)
|
|
{
|
|
char *file = NULL;
|
|
unsigned line = 0;
|
|
char *srcline;
|
|
const char *dso_name;
|
|
|
|
if (!dso->has_srcline)
|
|
goto out;
|
|
|
|
dso_name = dso__name(dso);
|
|
if (dso_name == NULL)
|
|
goto out;
|
|
|
|
if (!addr2line(dso_name, addr, &file, &line, dso,
|
|
unwind_inlines, NULL, sym))
|
|
goto out;
|
|
|
|
srcline = srcline_from_fileline(file, line);
|
|
free(file);
|
|
|
|
if (!srcline)
|
|
goto out;
|
|
|
|
dso->a2l_fails = 0;
|
|
|
|
return srcline;
|
|
|
|
out:
|
|
if (dso->a2l_fails && ++dso->a2l_fails > A2L_FAIL_LIMIT) {
|
|
dso->has_srcline = 0;
|
|
dso__free_a2l(dso);
|
|
}
|
|
|
|
if (!show_addr)
|
|
return (show_sym && sym) ?
|
|
strndup(sym->name, sym->namelen) : NULL;
|
|
|
|
if (sym) {
|
|
if (asprintf(&srcline, "%s+%" PRIu64, show_sym ? sym->name : "",
|
|
ip - sym->start) < 0)
|
|
return SRCLINE_UNKNOWN;
|
|
} else if (asprintf(&srcline, "%s[%" PRIx64 "]", dso->short_name, addr) < 0)
|
|
return SRCLINE_UNKNOWN;
|
|
return srcline;
|
|
}
|
|
|
|
/* Returns filename and fills in line number in line */
|
|
char *get_srcline_split(struct dso *dso, u64 addr, unsigned *line)
|
|
{
|
|
char *file = NULL;
|
|
const char *dso_name;
|
|
|
|
if (!dso->has_srcline)
|
|
goto out;
|
|
|
|
dso_name = dso__name(dso);
|
|
if (dso_name == NULL)
|
|
goto out;
|
|
|
|
if (!addr2line(dso_name, addr, &file, line, dso, true, NULL, NULL))
|
|
goto out;
|
|
|
|
dso->a2l_fails = 0;
|
|
return file;
|
|
|
|
out:
|
|
if (dso->a2l_fails && ++dso->a2l_fails > A2L_FAIL_LIMIT) {
|
|
dso->has_srcline = 0;
|
|
dso__free_a2l(dso);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
void free_srcline(char *srcline)
|
|
{
|
|
if (srcline && strcmp(srcline, SRCLINE_UNKNOWN) != 0)
|
|
free(srcline);
|
|
}
|
|
|
|
char *get_srcline(struct dso *dso, u64 addr, struct symbol *sym,
|
|
bool show_sym, bool show_addr, u64 ip)
|
|
{
|
|
return __get_srcline(dso, addr, sym, show_sym, show_addr, false, ip);
|
|
}
|
|
|
|
struct srcline_node {
|
|
u64 addr;
|
|
char *srcline;
|
|
struct rb_node rb_node;
|
|
};
|
|
|
|
void srcline__tree_insert(struct rb_root_cached *tree, u64 addr, char *srcline)
|
|
{
|
|
struct rb_node **p = &tree->rb_root.rb_node;
|
|
struct rb_node *parent = NULL;
|
|
struct srcline_node *i, *node;
|
|
bool leftmost = true;
|
|
|
|
node = zalloc(sizeof(struct srcline_node));
|
|
if (!node) {
|
|
perror("not enough memory for the srcline node");
|
|
return;
|
|
}
|
|
|
|
node->addr = addr;
|
|
node->srcline = srcline;
|
|
|
|
while (*p != NULL) {
|
|
parent = *p;
|
|
i = rb_entry(parent, struct srcline_node, rb_node);
|
|
if (addr < i->addr)
|
|
p = &(*p)->rb_left;
|
|
else {
|
|
p = &(*p)->rb_right;
|
|
leftmost = false;
|
|
}
|
|
}
|
|
rb_link_node(&node->rb_node, parent, p);
|
|
rb_insert_color_cached(&node->rb_node, tree, leftmost);
|
|
}
|
|
|
|
char *srcline__tree_find(struct rb_root_cached *tree, u64 addr)
|
|
{
|
|
struct rb_node *n = tree->rb_root.rb_node;
|
|
|
|
while (n) {
|
|
struct srcline_node *i = rb_entry(n, struct srcline_node,
|
|
rb_node);
|
|
|
|
if (addr < i->addr)
|
|
n = n->rb_left;
|
|
else if (addr > i->addr)
|
|
n = n->rb_right;
|
|
else
|
|
return i->srcline;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
void srcline__tree_delete(struct rb_root_cached *tree)
|
|
{
|
|
struct srcline_node *pos;
|
|
struct rb_node *next = rb_first_cached(tree);
|
|
|
|
while (next) {
|
|
pos = rb_entry(next, struct srcline_node, rb_node);
|
|
next = rb_next(&pos->rb_node);
|
|
rb_erase_cached(&pos->rb_node, tree);
|
|
free_srcline(pos->srcline);
|
|
zfree(&pos);
|
|
}
|
|
}
|
|
|
|
struct inline_node *dso__parse_addr_inlines(struct dso *dso, u64 addr,
|
|
struct symbol *sym)
|
|
{
|
|
const char *dso_name;
|
|
|
|
dso_name = dso__name(dso);
|
|
if (dso_name == NULL)
|
|
return NULL;
|
|
|
|
return addr2inlines(dso_name, addr, dso, sym);
|
|
}
|
|
|
|
void inline_node__delete(struct inline_node *node)
|
|
{
|
|
struct inline_list *ilist, *tmp;
|
|
|
|
list_for_each_entry_safe(ilist, tmp, &node->val, list) {
|
|
list_del_init(&ilist->list);
|
|
free_srcline(ilist->srcline);
|
|
/* only the inlined symbols are owned by the list */
|
|
if (ilist->symbol && ilist->symbol->inlined)
|
|
symbol__delete(ilist->symbol);
|
|
free(ilist);
|
|
}
|
|
|
|
free(node);
|
|
}
|
|
|
|
void inlines__tree_insert(struct rb_root_cached *tree,
|
|
struct inline_node *inlines)
|
|
{
|
|
struct rb_node **p = &tree->rb_root.rb_node;
|
|
struct rb_node *parent = NULL;
|
|
const u64 addr = inlines->addr;
|
|
struct inline_node *i;
|
|
bool leftmost = true;
|
|
|
|
while (*p != NULL) {
|
|
parent = *p;
|
|
i = rb_entry(parent, struct inline_node, rb_node);
|
|
if (addr < i->addr)
|
|
p = &(*p)->rb_left;
|
|
else {
|
|
p = &(*p)->rb_right;
|
|
leftmost = false;
|
|
}
|
|
}
|
|
rb_link_node(&inlines->rb_node, parent, p);
|
|
rb_insert_color_cached(&inlines->rb_node, tree, leftmost);
|
|
}
|
|
|
|
struct inline_node *inlines__tree_find(struct rb_root_cached *tree, u64 addr)
|
|
{
|
|
struct rb_node *n = tree->rb_root.rb_node;
|
|
|
|
while (n) {
|
|
struct inline_node *i = rb_entry(n, struct inline_node,
|
|
rb_node);
|
|
|
|
if (addr < i->addr)
|
|
n = n->rb_left;
|
|
else if (addr > i->addr)
|
|
n = n->rb_right;
|
|
else
|
|
return i;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
void inlines__tree_delete(struct rb_root_cached *tree)
|
|
{
|
|
struct inline_node *pos;
|
|
struct rb_node *next = rb_first_cached(tree);
|
|
|
|
while (next) {
|
|
pos = rb_entry(next, struct inline_node, rb_node);
|
|
next = rb_next(&pos->rb_node);
|
|
rb_erase_cached(&pos->rb_node, tree);
|
|
inline_node__delete(pos);
|
|
}
|
|
}
|