perf: Use eprintf() for debug messages in perf-probe

Replace debug() macro with eprintf() and add -v option for
showing those messages in perf-probe.

Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20091017000810.16556.38013.stgit@dhcp-100-2-132.bos.redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c
index a1467d12547a15cff948b4eef33076680a17da59..b5ad86a265ff2e0f17da4ea948f487da4ab56032 100644 (file)
--- a/tools/perf/builtin-probe.c
+++ b/tools/perf/builtin-probe.c
@@ -35,6 +35,8 @@
 #include "perf.h"
 #include "builtin.h"
 #include "util/util.h"
+#include "util/event.h"
+#include "util/debug.h"
 #include "util/parse-options.h"
 #include "util/parse-events.h" /* For debugfs_path */
 #include "util/probe-finder.h"
@@ -76,7 +78,7 @@ static int parse_probepoint(const struct option *opt __used,
        if (!str)       /* The end of probe points */
                return 0;
 
-       debug("Probe-define(%d): %s\n", session.nr_probe, str);
+       eprintf("probe-definition(%d): %s\n", session.nr_probe, str);
        if (++session.nr_probe == MAX_PROBES)
                semantic_error("Too many probes");
 
@@ -101,7 +103,7 @@ static int parse_probepoint(const struct option *opt __used,
                                die("strndup");
                        if (++argc == MAX_PROBE_ARGS)
                                semantic_error("Too many arguments");
-                       debug("argv[%d]=%s\n", argc, argv[argc - 1]);
+                       eprintf("argv[%d]=%s\n", argc, argv[argc - 1]);
                }
        } while (*str != '\0');
        if (argc < 2)
@@ -131,7 +133,7 @@ static int parse_probepoint(const struct option *opt __used,
                pp->line = atoi(ptr);
                if (!pp->file || !pp->line)
                        semantic_error("Failed to parse line.");
-               debug("file:%s line:%d\n", pp->file, pp->line);
+               eprintf("file:%s line:%d\n", pp->file, pp->line);
        } else {
                /* Function name */
                ptr = strchr(arg, '+');
@@ -148,7 +150,7 @@ static int parse_probepoint(const struct option *opt __used,
                        pp->file = strdup(ptr);
                }
                pp->function = strdup(arg);
-               debug("symbol:%s file:%s offset:%d\n",
+               eprintf("symbol:%s file:%s offset:%d\n",
                      pp->function, pp->file, pp->offset);
        }
        free(argv[1]);
@@ -173,7 +175,7 @@ static int parse_probepoint(const struct option *opt __used,
                        session.need_dwarf = 1;
                }
 
-       debug("%d arguments\n", pp->nr_args);
+       eprintf("%d arguments\n", pp->nr_args);
        return 0;
 }
 
@@ -186,7 +188,7 @@ static int open_default_vmlinux(void)
 
        ret = uname(&uts);
        if (ret) {
-               debug("uname() failed.\n");
+               eprintf("uname() failed.\n");
                return -errno;
        }
        session.release = uts.release;
@@ -194,11 +196,12 @@ static int open_default_vmlinux(void)
                ret = snprintf(fname, MAX_PATH_LEN,
                               default_search_path[i], session.release);
                if (ret >= MAX_PATH_LEN || ret < 0) {
-                       debug("Filename(%d,%s) is too long.\n", i, uts.release);
+                       eprintf("Filename(%d,%s) is too long.\n", i,
+                               uts.release);
                        errno = E2BIG;
                        return -E2BIG;
                }
-               debug("try to open %s\n", fname);
+               eprintf("try to open %s\n", fname);
                fd = open(fname, O_RDONLY);
                if (fd >= 0)
                        break;
@@ -213,6 +216,8 @@ static const char * const probe_usage[] = {
 };
 
 static const struct option options[] = {
+       OPT_BOOLEAN('v', "verbose", &verbose,
+                   "be more verbose (show parsed arguments, etc)"),
 #ifndef NO_LIBDWARF
        OPT_STRING('k', "vmlinux", &session.vmlinux, "file",
                "vmlinux/module pathname"),
@@ -336,7 +341,7 @@ int cmd_probe(int argc, const char **argv, const char *prefix __used)
                ret = find_probepoint(fd, pp);
                if (ret <= 0)
                        die("No probe point found.\n");
-               debug("probe event %s found\n", session.events[j]);
+               eprintf("probe event %s found\n", session.events[j]);
        }
        close(fd);
 

diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 338fdb9e093d096e2d9ac4be44f66b329a40a241..db24c913225f29448d6ba81d960699e278b35fc6 100644 (file)
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -32,6 +32,8 @@
 #include <stdarg.h>
 #include <ctype.h>
 
+#include "event.h"
+#include "debug.h"
 #include "util.h"
 #include "probe-finder.h"
 
@@ -134,7 +136,7 @@ static Dwarf_Unsigned die_get_fileno(Dwarf_Die cu_die, const char *fname)
                dwarf_dealloc(__dw_debug, srcs, DW_DLA_LIST);
        }
        if (found)
-               debug("found fno: %d\n", (int)found);
+               eprintf("found fno: %d\n", (int)found);
        return found;
 }
 
@@ -440,7 +442,7 @@ static void find_variable(Dwarf_Die sp_die, struct probe_finder *pf)
                return ;
        }
 
-       debug("Searching '%s' variable in context.\n", pf->var);
+       eprintf("Searching '%s' variable in context.\n", pf->var);
        /* Search child die for local variables and parameters. */
        ret = search_die_from_children(sp_die, variable_callback, pf);
        if (!ret)
@@ -550,7 +552,7 @@ static void find_by_line(Dwarf_Die cu_die, struct probe_finder *pf)
 
                ret = dwarf_lineaddr(lines[i], &addr, &__dw_error);
                ERR_IF(ret != DW_DLV_OK);
-               debug("Probe point found: 0x%llx\n", addr);
+               eprintf("Probe point found: 0x%llx\n", addr);
                pf->addr = addr;
                /* Search a real subprogram including this line, */
                ret = search_die_from_children(cu_die, probeaddr_callback, pf);
@@ -581,7 +583,7 @@ static int probefunc_callback(struct die_link *dlink, void *data)
                                                          &pf->inl_offs,
                                                          &__dw_error);
                                ERR_IF(ret != DW_DLV_OK);
-                               debug("inline definition offset %lld\n",
+                               eprintf("inline definition offset %lld\n",
                                        pf->inl_offs);
                                return 0;
                        }
@@ -597,7 +599,7 @@ static int probefunc_callback(struct die_link *dlink, void *data)
                        /* Get probe address */
                        pf->addr = die_get_entrypc(dlink->die);
                        pf->addr += pp->offset;
-                       debug("found inline addr: 0x%llx\n", pf->addr);
+                       eprintf("found inline addr: 0x%llx\n", pf->addr);
                        /* Inlined function. Get a real subprogram */
                        for (lk = dlink->parent; lk != NULL; lk = lk->parent) {
                                tag = 0;

diff --git a/tools/perf/util/probe-finder.h b/tools/perf/util/probe-finder.h
index 306810c32f6bdb2ae958ee9ac6d29eb53ada96a0..6a7cb0c04e9eb38869fe3fc60e21949e5713c554 100644 (file)
--- a/tools/perf/util/probe-finder.h
+++ b/tools/perf/util/probe-finder.h
@@ -4,13 +4,6 @@
 #define _stringify(n)  #n
 #define stringify(n)   _stringify(n)
 
-#ifdef DEBUG
-#define debug(fmt ...) \
-       fprintf(stderr, "DBG(" __FILE__ ":" stringify(__LINE__) "): " fmt)
-#else
-#define debug(fmt ...) do {} while (0)
-#endif
-
 #define ERR_IF(cnd)    \
        do { if (cnd) { \
                fprintf(stderr, "Error (" __FILE__ ":" stringify(__LINE__) \