* [PATCH 09/16] dyndbg: accept 'file foo.c:func1' and 'file foo.c:10-100'
@ 2019-10-29 20:00 Jim Cromie
0 siblings, 0 replies; 3+ messages in thread
From: Jim Cromie @ 2019-10-29 20:00 UTC (permalink / raw)
To: jbaron, linux-kernel
Cc: linux, greg, Jim Cromie, Jonathan Corbet, Randy Dunlap, linux-doc
Accept these additional query forms:
echo "file $filestr +_" > control
path/to/file.c:100 # as from control, column 1
path/to/file.c:1-100 # or any legal line-range
path/to/file.c:func_A # as from an editor/browser
path/to/file.c:drm_\* # wildcards still work
path/to/file.c:*_foo # lead wildcard too
1st 2 examples are treated as line-ranges, 3,4 are treated as func's
Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
---
.../admin-guide/dynamic-debug-howto.rst | 5 +++++
lib/dynamic_debug.c | 20 ++++++++++++++++++-
2 files changed, 24 insertions(+), 1 deletion(-)
diff --git a/Documentation/admin-guide/dynamic-debug-howto.rst b/Documentation/admin-guide/dynamic-debug-howto.rst
index e011f8907116..689a30316589 100644
--- a/Documentation/admin-guide/dynamic-debug-howto.rst
+++ b/Documentation/admin-guide/dynamic-debug-howto.rst
@@ -156,6 +156,7 @@ func
of each callsite. Example::
func svc_tcp_accept
+ func *recv* # in rfcomm, bluetooth, ping, tcp
file
The given string is compared against either the src-root relative
@@ -164,6 +165,9 @@ file
file svcsock.c
file kernel/freezer.c # ie column 1 of control file
+ file drivers/usb/* # all callsites under it
+ file inode.c:start_* # parse :tail as a func (above)
+ file inode.c:1-100 # parse :tail as a line-range (above)
module
The given string is compared against the module name
@@ -173,6 +177,7 @@ module
module sunrpc
module nfsd
+ module drm* # both drm, drm_kms_helper
format
The given string is searched for in the dynamic debug format
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index 2d0aad5af972..1b65821162e5 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -307,6 +307,8 @@ static int parse_linerange(struct ddebug_query *query, const char *first)
} else {
query->last_lineno = query->first_lineno;
}
+ vpr_info("parsed line %d-%d\n", query->first_lineno,
+ query->last_lineno);
return 0;
}
@@ -343,6 +345,7 @@ static int ddebug_parse_query(char *words[], int nwords,
{
unsigned int i;
int rc = 0;
+ char *fline;
/* check we have an even number of words */
if (nwords % 2 != 0) {
@@ -359,7 +362,22 @@ static int ddebug_parse_query(char *words[], int nwords,
if (!strcmp(words[i], "func")) {
rc = check_set(&query->function, words[i+1], "func");
} else if (!strcmp(words[i], "file")) {
- rc = check_set(&query->filename, words[i+1], "file");
+ if (check_set(&query->filename, words[i+1], "file"))
+ return -EINVAL;
+
+ /* tail :$info is function or line-range */
+ fline = strchr(query->filename, ':');
+ if (!fline)
+ break;
+ *fline++ = '\0';
+ if (isalpha(*fline) || *fline == '*' || *fline == '?') {
+ /* take as function name */
+ if (check_set(&query->function, fline, "func"))
+ return -EINVAL;
+ } else
+ if (parse_linerange(query, fline))
+ return -EINVAL;
+
} else if (!strcmp(words[i], "module")) {
rc = check_set(&query->module, words[i+1], "module");
} else if (!strcmp(words[i], "format")) {
--
2.21.0
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH 09/16] dyndbg: accept 'file foo.c:func1' and 'file foo.c:10-100'
2020-06-05 16:26 ` [PATCH 09/16] dyndbg: accept 'file foo.c:func1' and 'file foo.c:10-100' Jim Cromie
@ 2020-06-12 20:36 ` Jason Baron
0 siblings, 0 replies; 3+ messages in thread
From: Jason Baron @ 2020-06-12 20:36 UTC (permalink / raw)
To: Jim Cromie, linux-kernel, akpm, gregkh
Cc: linux, Jonathan Corbet, Will Deacon, linux-doc
On 6/5/20 12:26 PM, Jim Cromie wrote:
> Accept these additional query forms:
>
> echo "file $filestr +_" > control
>
> path/to/file.c:100 # as from control, column 1
> path/to/file.c:1-100 # or any legal line-range
> path/to/file.c:func_A # as from an editor/browser
> path/to/file.c:drm_\* # wildcards still work
> path/to/file.c:*_foo # lead wildcard too
>
> 1st 2 examples are treated as line-ranges, 3,4 are treated as func's
>
> Doc these changes, and sprinkle in a few extra wild-card examples and
> trailing # explanation texts.
>
> Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
> ---
> .../admin-guide/dynamic-debug-howto.rst | 5 +++++
> lib/dynamic_debug.c | 20 ++++++++++++++++++-
> 2 files changed, 24 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/admin-guide/dynamic-debug-howto.rst b/Documentation/admin-guide/dynamic-debug-howto.rst
> index 2854d418b31b..880d33d1782f 100644
> --- a/Documentation/admin-guide/dynamic-debug-howto.rst
> +++ b/Documentation/admin-guide/dynamic-debug-howto.rst
> @@ -159,6 +159,7 @@ func
> of each callsite. Example::
>
> func svc_tcp_accept
> + func *recv* # in rfcomm, bluetooth, ping, tcp
>
> file
> The given string is compared against either the src-root relative
> @@ -167,6 +168,9 @@ file
>
> file svcsock.c
> file kernel/freezer.c # ie column 1 of control file
> + file drivers/usb/* # all callsites under it
> + file inode.c:start_* # parse :tail as a func (above)
> + file inode.c:1-100 # parse :tail as a line-range (above)
>
> module
> The given string is compared against the module name
> @@ -176,6 +180,7 @@ module
>
> module sunrpc
> module nfsd
> + module drm* # both drm, drm_kms_helper
>
> format
> The given string is searched for in the dynamic debug format
> diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
> index d43bc3547d3a..8f250c67acbe 100644
> --- a/lib/dynamic_debug.c
> +++ b/lib/dynamic_debug.c
> @@ -321,6 +321,8 @@ static int parse_linerange(struct ddebug_query *query, const char *first)
> } else {
> query->last_lineno = query->first_lineno;
> }
> + vpr_info("parsed line %d-%d\n", query->first_lineno,
> + query->last_lineno);
> return 0;
> }
>
> @@ -357,6 +359,7 @@ static int ddebug_parse_query(char *words[], int nwords,
> {
> unsigned int i;
> int rc = 0;
> + char *fline;
>
> /* check we have an even number of words */
> if (nwords % 2 != 0) {
> @@ -373,7 +376,22 @@ static int ddebug_parse_query(char *words[], int nwords,
> if (!strcmp(words[i], "func")) {
> rc = check_set(&query->function, words[i+1], "func");
> } else if (!strcmp(words[i], "file")) {
> - rc = check_set(&query->filename, words[i+1], "file");
> + if (check_set(&query->filename, words[i+1], "file"))
> + return -EINVAL;
> +
> + /* tail :$info is function or line-range */
> + fline = strchr(query->filename, ':');
> + if (!fline)
> + break;
> + *fline++ = '\0';
> + if (isalpha(*fline) || *fline == '*' || *fline == '?') {
> + /* take as function name */
> + if (check_set(&query->function, fline, "func"))
> + return -EINVAL;
> + } else
> + if (parse_linerange(query, fline))
> + return -EINVAL;
> +
coding style here is to use braces for both branches.
> } else if (!strcmp(words[i], "module")) {
> rc = check_set(&query->module, words[i+1], "module");
> } else if (!strcmp(words[i], "format")) {
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH 09/16] dyndbg: accept 'file foo.c:func1' and 'file foo.c:10-100'
2020-06-05 16:26 [PATCH 00/16] dynamic_debug: cleanups, 2 features Jim Cromie
@ 2020-06-05 16:26 ` Jim Cromie
2020-06-12 20:36 ` Jason Baron
0 siblings, 1 reply; 3+ messages in thread
From: Jim Cromie @ 2020-06-05 16:26 UTC (permalink / raw)
To: jbaron, linux-kernel, akpm, gregkh
Cc: linux, Jim Cromie, Jonathan Corbet, Will Deacon, linux-doc
Accept these additional query forms:
echo "file $filestr +_" > control
path/to/file.c:100 # as from control, column 1
path/to/file.c:1-100 # or any legal line-range
path/to/file.c:func_A # as from an editor/browser
path/to/file.c:drm_\* # wildcards still work
path/to/file.c:*_foo # lead wildcard too
1st 2 examples are treated as line-ranges, 3,4 are treated as func's
Doc these changes, and sprinkle in a few extra wild-card examples and
trailing # explanation texts.
Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
---
.../admin-guide/dynamic-debug-howto.rst | 5 +++++
lib/dynamic_debug.c | 20 ++++++++++++++++++-
2 files changed, 24 insertions(+), 1 deletion(-)
diff --git a/Documentation/admin-guide/dynamic-debug-howto.rst b/Documentation/admin-guide/dynamic-debug-howto.rst
index 2854d418b31b..880d33d1782f 100644
--- a/Documentation/admin-guide/dynamic-debug-howto.rst
+++ b/Documentation/admin-guide/dynamic-debug-howto.rst
@@ -159,6 +159,7 @@ func
of each callsite. Example::
func svc_tcp_accept
+ func *recv* # in rfcomm, bluetooth, ping, tcp
file
The given string is compared against either the src-root relative
@@ -167,6 +168,9 @@ file
file svcsock.c
file kernel/freezer.c # ie column 1 of control file
+ file drivers/usb/* # all callsites under it
+ file inode.c:start_* # parse :tail as a func (above)
+ file inode.c:1-100 # parse :tail as a line-range (above)
module
The given string is compared against the module name
@@ -176,6 +180,7 @@ module
module sunrpc
module nfsd
+ module drm* # both drm, drm_kms_helper
format
The given string is searched for in the dynamic debug format
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index d43bc3547d3a..8f250c67acbe 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -321,6 +321,8 @@ static int parse_linerange(struct ddebug_query *query, const char *first)
} else {
query->last_lineno = query->first_lineno;
}
+ vpr_info("parsed line %d-%d\n", query->first_lineno,
+ query->last_lineno);
return 0;
}
@@ -357,6 +359,7 @@ static int ddebug_parse_query(char *words[], int nwords,
{
unsigned int i;
int rc = 0;
+ char *fline;
/* check we have an even number of words */
if (nwords % 2 != 0) {
@@ -373,7 +376,22 @@ static int ddebug_parse_query(char *words[], int nwords,
if (!strcmp(words[i], "func")) {
rc = check_set(&query->function, words[i+1], "func");
} else if (!strcmp(words[i], "file")) {
- rc = check_set(&query->filename, words[i+1], "file");
+ if (check_set(&query->filename, words[i+1], "file"))
+ return -EINVAL;
+
+ /* tail :$info is function or line-range */
+ fline = strchr(query->filename, ':');
+ if (!fline)
+ break;
+ *fline++ = '\0';
+ if (isalpha(*fline) || *fline == '*' || *fline == '?') {
+ /* take as function name */
+ if (check_set(&query->function, fline, "func"))
+ return -EINVAL;
+ } else
+ if (parse_linerange(query, fline))
+ return -EINVAL;
+
} else if (!strcmp(words[i], "module")) {
rc = check_set(&query->module, words[i+1], "module");
} else if (!strcmp(words[i], "format")) {
--
2.26.2
^ permalink raw reply related [flat|nested] 3+ messages in thread
end of thread, other threads:[~2020-06-12 20:37 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-10-29 20:00 [PATCH 09/16] dyndbg: accept 'file foo.c:func1' and 'file foo.c:10-100' Jim Cromie
2020-06-05 16:26 [PATCH 00/16] dynamic_debug: cleanups, 2 features Jim Cromie
2020-06-05 16:26 ` [PATCH 09/16] dyndbg: accept 'file foo.c:func1' and 'file foo.c:10-100' Jim Cromie
2020-06-12 20:36 ` Jason Baron
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