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* Added very basic possibility to set a filter for all KDL command

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output using the new "filter" command.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24590 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler 2008-03-26 16:05:21 +00:00
parent 3bb1e6c264
commit e77b684f9e
1 changed files with 30 additions and 7 deletions
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37
src/system/kernel/debug/debug.cpp
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@ -83,6 +83,7 @@ static const uint32 kMaxDebuggerModules = sizeof(sDebuggerModules)
static char sLineBuffer[HISTORY_SIZE][LINE_BUFFER_SIZE] = { "", };
static char sParseLine[LINE_BUFFER_SIZE];
static char sFilter[64];
static int32 sCurrentLine = 0;
#define distance(a, b) ((a) < (b) ? (b) - (a) : (a) - (b))
@ -280,7 +281,7 @@ public:
} else if (longestCommonPrefix > position) {
// multiple possible completions with longer common prefix
// -- insert the remainder of the common prefix
// check for sufficient space in the buffer
int32 neededSpace = longestCommonPrefix - position;
// also consider the terminating null char
@ -516,7 +517,7 @@ read_line(char *buffer, int32 maxLength,
position = 4;
done = true;
break;
}
}
}
/* supposed to fall through */
default:
@ -697,6 +698,19 @@ cmd_expr(int argc, char **argv)
}
static int
cmd_filter(int argc, char **argv)
{
if (argc != 2) {
sFilter[0] = '\0';
return 0;
}
strlcpy(sFilter, argv[1], sizeof(sFilter));
return 0;
}
static int
cmd_error(int argc, char **argv)
{
@ -996,6 +1010,11 @@ debug_init_post_vm(kernel_args *args)
"<expression>\n"
"Evaluates the given expression and prints the result.\n",
B_KDEBUG_DONT_PARSE_ARGUMENTS);
add_debugger_command_etc("filter", &cmd_filter,
"Filters output of all debugger commands",
"<pattern>\n"
"Filters out all debug output of commands that does not match the\n"
"specified pattern. If no pattern is given, it is removed\n", 0);
add_debugger_command_etc("error", &cmd_error,
"Prints a human-readable description for an error code",
"<error>\n"
@ -1305,10 +1324,9 @@ dprintf_no_syslog(const char *format, ...)
}
/** Similar to dprintf() but thought to be used in the kernel
* debugger only (it doesn't lock).
*/
/*! Similar to dprintf() but thought to be used in the kernel
debugger only (it doesn't lock).
*/
void
kprintf(const char *format, ...)
{
@ -1320,6 +1338,11 @@ kprintf(const char *format, ...)
vsnprintf(sOutputBuffer, OUTPUT_BUFFER_SIZE, format, args);
va_end(args);
if (in_command_invocation() && sFilter[0]) {
if (strstr(sOutputBuffer, sFilter) == NULL)
return;
}
flush_pending_repeats();
kputs(sOutputBuffer);
}
@ -1354,7 +1377,7 @@ dump_block(const char *buffer, int size, const char *prefix)
{
const int DUMPED_BLOCK_SIZE = 16;
int i;
for (i = 0; i < size;) {
int start = i;