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authorTom Tromey <tromey@adacore.com>2023-05-31 08:26:37 -0600
committerTom Tromey <tromey@adacore.com>2023-05-31 12:00:09 -0600
commit739f67599a85d7b809c0407765f8a7304f771e63 (patch)
treebdba17bb596aa33ce3386c0d27da716df49add28 /gdb
parent20fcd1747993127c648b9a3ad393a6caa3a025ba (diff)
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Improve MI -dprintf-insert documentation
I found the documentation for -dprintf-insert a bit unclear. It didn't mention the possibility of multiple arguments, and I also noticed that it implied that the format parameter is optional, which it is not. While looking into this I also noticed a few comments in the implementation that could also be improved. Then, I noticed a repeated call to strlen in a loop condition, so I fixed this up as well. Reviewed-By: Eli Zaretskii <eliz@gnu.org>
Diffstat (limited to 'gdb')
-rw-r--r--gdb/doc/gdb.texinfo9
-rw-r--r--gdb/mi/mi-cmd-break.c10
2 files changed, 12 insertions, 7 deletions
diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo
index a179af7..fc55c4e 100644
--- a/gdb/doc/gdb.texinfo
+++ b/gdb/doc/gdb.texinfo
@@ -32328,11 +32328,16 @@ times="0"@}]@}
@smallexample
-dprintf-insert [ -t ] [ -f ] [ -d ] [ --qualified ]
[ -c @var{condition} ] [--force-condition] [ -i @var{ignore-count} ]
- [ -p @var{thread-id} ] [ @var{locspec} ] [ @var{format} ]
- [ @var{argument} ]
+ [ -p @var{thread-id} ] [ @var{locspec} ] @var{format}
+ [ @var{argument}@dots{} ]
@end smallexample
@noindent
+Insert a new dynamic print breakpoint at the given location.
+@xref{Dynamic Printf}. @var{format} is the format to use, and any
+remaining arguments are passed as expressions to substitute.
+
+@noindent
If supplied, @var{locspec} and @code{--qualified} may be specified
the same way as for the @code{-break-insert} command.
@xref{-break-insert}.
diff --git a/gdb/mi/mi-cmd-break.c b/gdb/mi/mi-cmd-break.c
index 082c4da..0777fcb 100644
--- a/gdb/mi/mi-cmd-break.c
+++ b/gdb/mi/mi-cmd-break.c
@@ -93,8 +93,8 @@ setup_breakpoint_reporting (void)
}
-/* Convert arguments in ARGV to the string in "format",argv,argv...
- and return it. */
+/* Convert arguments in ARGV to a string suitable for parsing by
+ dprintf like "FORMAT",ARG,ARG... and return it. */
static std::string
mi_argv_to_format (const char *const *argv, int argc)
@@ -102,9 +102,9 @@ mi_argv_to_format (const char *const *argv, int argc)
int i;
std::string result;
- /* Convert ARGV[OIND + 1] to format string and save to FORMAT. */
+ /* Convert ARGV[0] to format string and save to FORMAT. */
result += '\"';
- for (i = 0; i < strlen (argv[0]); i++)
+ for (i = 0; argv[0][i] != '\0'; i++)
{
switch (argv[0][i])
{
@@ -151,7 +151,7 @@ mi_argv_to_format (const char *const *argv, int argc)
}
result += '\"';
- /* Apply other argv to FORMAT. */
+ /* Append other arguments. */
for (i = 1; i < argc; i++)
{
result += ',';