perf probe: Cleanup messages

Add new lines for error or debug messages, change dwarf related words to more
generic words (or just removed).

Cc: 2nddept-manager@sdl.hitachi.co.jp
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <20101217131211.24123.40437.stgit@ltc236.sdl.hitachi.co.jp>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

2 files changed, 38 insertions, 34 deletions

diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 3b6a5297bf16..089d78ecbdda 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -95,7 +95,7 @@ static int init_vmlinux(void)
                 goto out;
 
         if (machine__create_kernel_maps(&machine) < 0) {
-                pr_debug("machine__create_kernel_maps ");
+                pr_debug("machine__create_kernel_maps() failed.\n");
                 goto out;
         }
 out:
@@ -140,7 +140,8 @@ static int open_vmlinux(const char *module)
 {
         const char *path = kernel_get_module_path(module);
         if (!path) {
-                pr_err("Failed to find path of %s module", module ?: "kernel");
+                pr_err("Failed to find path of %s module.\n",
+                       module ?: "kernel");
                 return -ENOENT;
         }
         pr_debug("Try to open %s\n", path);
@@ -217,7 +218,7 @@ static int try_to_find_probe_trace_events(struct perf_probe_event *pev,
                 pr_warning("Warning: No dwarf info found in the vmlinux - "
                         "please rebuild kernel with CONFIG_DEBUG_INFO=y.\n");
                 if (!need_dwarf) {
-                        pr_debug("Trying to use symbols.\nn");
+                        pr_debug("Trying to use symbols.\n");
                         return 0;
                 }
         }
@@ -457,7 +458,7 @@ int show_available_vars(struct perf_probe_event *pevs, int npevs,
 
         fd = open_vmlinux(module);
         if (fd < 0) {
-                pr_warning("Failed to open debuginfo file.\n");
+                pr_warning("Failed to open debug information file.\n");
                 return fd;
         }
 
@@ -690,39 +691,40 @@ static int parse_perf_probe_point(char *arg, struct perf_probe_event *pev)
 
         /* Exclusion check */
         if (pp->lazy_line && pp->line) {
-                semantic_error("Lazy pattern can't be used with line number.");
+                semantic_error("Lazy pattern can't be used with"
+                               " line number.\n");
                 return -EINVAL;
         }
 
         if (pp->lazy_line && pp->offset) {
-                semantic_error("Lazy pattern can't be used with offset.");
+                semantic_error("Lazy pattern can't be used with offset.\n");
                 return -EINVAL;
         }
 
         if (pp->line && pp->offset) {
-                semantic_error("Offset can't be used with line number.");
+                semantic_error("Offset can't be used with line number.\n");
                 return -EINVAL;
         }
 
         if (!pp->line && !pp->lazy_line && pp->file && !pp->function) {
                 semantic_error("File always requires line number or "
-                               "lazy pattern.");
+                               "lazy pattern.\n");
                 return -EINVAL;
         }
 
         if (pp->offset && !pp->function) {
-                semantic_error("Offset requires an entry function.");
+                semantic_error("Offset requires an entry function.\n");
                 return -EINVAL;
         }
 
         if (pp->retprobe && !pp->function) {
-                semantic_error("Return probe requires an entry function.");
+                semantic_error("Return probe requires an entry function.\n");
                 return -EINVAL;
         }
 
         if ((pp->offset || pp->line || pp->lazy_line) && pp->retprobe) {
                 semantic_error("Offset/Line/Lazy pattern can't be used with "
-                               "return probe.");
+                               "return probe.\n");
                 return -EINVAL;
         }
 
@@ -996,7 +998,7 @@ int synthesize_perf_probe_arg(struct perf_probe_arg *pa, char *buf, size_t len)
 
         return tmp - buf;
 error:
-        pr_debug("Failed to synthesize perf probe argument: %s",
+        pr_debug("Failed to synthesize perf probe argument: %s\n",
                  strerror(-ret));
         return ret;
 }
@@ -1046,7 +1048,7 @@ static char *synthesize_perf_probe_point(struct perf_probe_point *pp)
 
         return buf;
 error:
-        pr_debug("Failed to synthesize perf probe point: %s",
+        pr_debug("Failed to synthesize perf probe point: %s\n",
                  strerror(-ret));
         if (buf)
                 free(buf);
@@ -1787,7 +1789,7 @@ static int del_trace_probe_event(int fd, const char *group,
 
         ret = e_snprintf(buf, 128, "%s:%s", group, event);
         if (ret < 0) {
-                pr_err("Failed to copy event.");
+                pr_err("Failed to copy event.\n");
                 return ret;
         }
 
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 3991d73d1cff..90b629226bd7 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -627,8 +627,8 @@ static_var:
         regs = get_arch_regstr(regn);
         if (!regs) {
                 /* This should be a bug in DWARF or this tool */
-                pr_warning("Mapping for DWARF register number %u "
-                           "missing on this architecture.", regn);
+                pr_warning("Mapping for the register number %u "
+                           "missing on this architecture.\n", regn);
                 return -ERANGE;
         }
 
@@ -674,13 +674,14 @@ static int convert_variable_type(Dwarf_Die *vr_die,
                 if (ret != DW_TAG_pointer_type &&
                     ret != DW_TAG_array_type) {
                         pr_warning("Failed to cast into string: "
-                                   "%s(%s) is not a pointer nor array.",
+                                   "%s(%s) is not a pointer nor array.\n",
                                    dwarf_diename(vr_die), dwarf_diename(&type));
                         return -EINVAL;
                 }
                 if (ret == DW_TAG_pointer_type) {
                         if (die_get_real_type(&type, &type) == NULL) {
-                                pr_warning("Failed to get a type information.");
+                                pr_warning("Failed to get a type"
+                                           " information.\n");
                                 return -ENOENT;
                         }
                         while (*ref_ptr)
@@ -695,7 +696,7 @@ static int convert_variable_type(Dwarf_Die *vr_die,
                 if (!die_compare_name(&type, "char") &&
                     !die_compare_name(&type, "unsigned char")) {
                         pr_warning("Failed to cast into string: "
-                                   "%s is not (unsigned) char *.",
+                                   "%s is not (unsigned) char *.\n",
                                    dwarf_diename(vr_die));
                         return -EINVAL;
                 }
@@ -805,8 +806,8 @@ static int convert_variable_fields(Dwarf_Die *vr_die, const char *varname,
                         return -EINVAL;
                 }
                 if (field->name[0] == '[') {
-                        pr_err("Semantic error: %s is not a pointor nor array.",
-                               varname);
+                        pr_err("Semantic error: %s is not a pointor"
+                               " nor array.\n", varname);
                         return -EINVAL;
                 }
                 if (field->ref) {
@@ -953,7 +954,7 @@ static int convert_to_trace_point(Dwarf_Die *sp_die, Dwarf_Addr paddr,
         name = dwarf_diename(sp_die);
         if (name) {
                 if (dwarf_entrypc(sp_die, &eaddr) != 0) {
-                        pr_warning("Failed to get entry pc of %s\n",
+                        pr_warning("Failed to get entry address of %s\n",
                                    dwarf_diename(sp_die));
                         return -ENOENT;
                 }
@@ -969,7 +970,7 @@ static int convert_to_trace_point(Dwarf_Die *sp_die, Dwarf_Addr paddr,
         if (retprobe) {
                 if (eaddr != paddr) {
                         pr_warning("Return probe must be on the head of"
-                                   " a real function\n");
+                                   " a real function.\n");
                         return -EINVAL;
                 }
                 tp->retprobe = true;
@@ -1008,7 +1009,7 @@ static int call_probe_finder(Dwarf_Die *sp_die, struct probe_finder *pf)
                 Dwarf_Frame *frame;
                 if (dwarf_cfi_addrframe(pf->cfi, pf->addr, &frame) != 0 ||
                     dwarf_frame_cfa(frame, &pf->fb_ops, &nops) != 0) {
-                        pr_warning("Failed to get CFA on 0x%jx\n",
+                        pr_warning("Failed to get call frame on 0x%jx\n",
                                    (uintmax_t)pf->addr);
                         return -ENOENT;
                 }
@@ -1035,7 +1036,7 @@ static int find_probe_point_by_line(struct probe_finder *pf)
         int ret = 0;
 
         if (dwarf_getsrclines(&pf->cu_die, &lines, &nlines) != 0) {
-                pr_warning("No source lines found in this CU.\n");
+                pr_warning("No source lines found.\n");
                 return -ENOENT;
         }
 
@@ -1137,7 +1138,7 @@ static int find_probe_point_lazy(Dwarf_Die *sp_die, struct probe_finder *pf)
         }
 
         if (dwarf_getsrclines(&pf->cu_die, &lines, &nlines) != 0) {
-                pr_warning("No source lines found in this CU.\n");
+                pr_warning("No source lines found.\n");
                 return -ENOENT;
         }
 
@@ -1195,7 +1196,7 @@ static int probe_point_inline_cb(Dwarf_Die *in_die, void *data)
         else {
                 /* Get probe address */
                 if (dwarf_entrypc(in_die, &addr) != 0) {
-                        pr_warning("Failed to get entry pc of %s.\n",
+                        pr_warning("Failed to get entry address of %s.\n",
                                    dwarf_diename(in_die));
                         param->retval = -ENOENT;
                         return DWARF_CB_ABORT;
@@ -1236,8 +1237,8 @@ static int probe_point_search_cb(Dwarf_Die *sp_die, void *data)
                         param->retval = find_probe_point_lazy(sp_die, pf);
                 else {
                         if (dwarf_entrypc(sp_die, &pf->addr) != 0) {
-                                pr_warning("Failed to get entry pc of %s.\n",
-                                           dwarf_diename(sp_die));
+                                pr_warning("Failed to get entry address of "
+                                           "%s.\n", dwarf_diename(sp_die));
                                 param->retval = -ENOENT;
                                 return DWARF_CB_ABORT;
                         }
@@ -1279,7 +1280,7 @@ static int find_probes(int fd, struct probe_finder *pf)
 
         dbg = dwfl_init_offline_dwarf(fd, &dwfl, &bias);
         if (!dbg) {
-                pr_warning("No dwarf info found in the vmlinux - "
+                pr_warning("No debug information found in the vmlinux - "
                         "please rebuild with CONFIG_DEBUG_INFO=y.\n");
                 return -EBADF;
         }
@@ -1524,7 +1525,7 @@ int find_perf_probe_point(unsigned long addr, struct perf_probe_point *ppt)
         /* Open the live linux kernel */
         dbg = dwfl_init_live_kernel_dwarf(addr, &dwfl, &bias);
         if (!dbg) {
-                pr_warning("No dwarf info found in the vmlinux - "
+                pr_warning("No debug information found in the vmlinux - "
                         "please rebuild with CONFIG_DEBUG_INFO=y.\n");
                 ret = -EINVAL;
                 goto end;
@@ -1534,7 +1535,8 @@ int find_perf_probe_point(unsigned long addr, struct perf_probe_point *ppt)
         addr += bias;
         /* Find cu die */
         if (!dwarf_addrdie(dbg, (Dwarf_Addr)addr - bias, &cudie)) {
-                pr_warning("No CU DIE is found at %lx\n", addr);
+                pr_warning("Failed to find debug information for address %lx\n",
+                           addr);
                 ret = -EINVAL;
                 goto end;
         }
@@ -1659,7 +1661,7 @@ static int find_line_range_by_line(Dwarf_Die *sp_die, struct line_finder *lf)
 
         line_list__init(&lf->lr->line_list);
         if (dwarf_getsrclines(&lf->cu_die, &lines, &nlines) != 0) {
-                pr_warning("No source lines found in this CU.\n");
+                pr_warning("No source lines found.\n");
                 return -ENOENT;
         }
 
@@ -1784,7 +1786,7 @@ int find_line_range(int fd, struct line_range *lr)
 
         dbg = dwfl_init_offline_dwarf(fd, &dwfl, &bias);
         if (!dbg) {
-                pr_warning("No dwarf info found in the vmlinux - "
+                pr_warning("No debug information found in the vmlinux - "
                         "please rebuild with CONFIG_DEBUG_INFO=y.\n");
                 return -EBADF;
         }