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* get_debug_why_stopped_string() -> get_debug_message_string().

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* Changed the index-based lookup of strings for debug message and
  exception codes to a search through entry lists. A bit slower, but more
  robust with respect to changes of the underlying enumerations.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@11713 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Ingo Weinhold
2005-03-13 23:48:37 +00:00
parent 291e414a9e
commit 4991e4c9c5
1 changed files with 54 additions and 41 deletions
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src/kernel/libroot/os/debug.c
+54 -41
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@@ -13,38 +13,45 @@
#include <string.h>
static const char *const sDebugWhyStrings[] = {
"Thread not running", // B_THREAD_NOT_RUNNING
"Signal received", // B_SIGNAL_RECEIVED
"Team created", // B_TEAM_CREATED
"Thread created", // B_THREAD_CREATED
"Image created", // B_IMAGE_CREATED
"Image deleted", // B_IMAGE_DELETED
"Debugger call", // B_DEBUGGER_CALL
"Breakpoint hit", // B_BREAKPOINT_HIT
"watchpoint hit", // B_WATCHPOINT_HIT
"Before syscall", // B_PRE_SYSCALL_HIT
"After syscall", // B_POST_SYSCALL_HIT
"Single step", // B_SINGLE_STEP
};
static const int32 sDebugWhyStringCount = B_SINGLE_STEP + 1;
typedef struct debug_string_entry {
const char *string;
uint32 code;
} debug_string_entry;
static const char *const sDebugExceptionTypeStrings[] = {
"Non-maskable interrupt", // B_NMI
"Machine check exception", // B_MACHINE_CHECK_EXCEPTION
"Segment violation", // B_SEGMENT_VIOLATION
"Alignment exception", // B_ALIGNMENT_EXCEPTION
"Divide error", // B_DIVIDE_ERROR
"Overflow exception", // B_OVERFLOW_EXCEPTION
"Bounds check exception", // B_BOUNDS_CHECK_EXCEPTION
"Invalid opcode exception", // B_INVALID_OPCODE_EXCEPTION
"Segment not present", // B_SEGMENT_NOT_PRESENT
"Stack fault", // B_STACK_FAULT
"General protection fault", // B_GENERAL_PROTECTION_FAULT
"Floating point exception", // B_FLOATING_POINT_EXCEPTION
static const debug_string_entry sDebugMessageStrings[] = {
{ "Thread not running", B_DEBUGGER_MESSAGE_THREAD_DEBUGGED },
{ "Debugger call", B_DEBUGGER_MESSAGE_DEBUGGER_CALL },
{ "Breakpoint hit", B_DEBUGGER_MESSAGE_BREAKPOINT_HIT },
{ "Watchpoint hit", B_DEBUGGER_MESSAGE_WATCHPOINT_HIT },
{ "Single step", B_DEBUGGER_MESSAGE_SINGLE_STEP },
{ "Before syscall", B_DEBUGGER_MESSAGE_PRE_SYSCALL },
{ "After syscall", B_DEBUGGER_MESSAGE_POST_SYSCALL },
{ "Signal received", B_DEBUGGER_MESSAGE_SIGNAL_RECEIVED },
{ "Exception occurred", B_DEBUGGER_MESSAGE_EXCEPTION_OCCURRED },
{ "Team created", B_DEBUGGER_MESSAGE_TEAM_CREATED },
{ "Team deleted", B_DEBUGGER_MESSAGE_TEAM_DELETED },
{ "Thread created", B_DEBUGGER_MESSAGE_THREAD_CREATED },
{ "Thread created", B_DEBUGGER_MESSAGE_THREAD_DELETED },
{ "Image created", B_DEBUGGER_MESSAGE_IMAGE_CREATED },
{ "Image deleted", B_DEBUGGER_MESSAGE_IMAGE_DELETED },
{ NULL, 0 }
};
static const debug_string_entry sDebugExceptionTypeStrings[] = {
{ "Non-maskable interrupt", B_NON_MASKABLE_INTERRUPT },
{ "Machine check exception", B_MACHINE_CHECK_EXCEPTION },
{ "Segment violation", B_SEGMENT_VIOLATION },
{ "Alignment exception", B_ALIGNMENT_EXCEPTION },
{ "Divide error", B_DIVIDE_ERROR },
{ "Overflow exception", B_OVERFLOW_EXCEPTION },
{ "Bounds check exception", B_BOUNDS_CHECK_EXCEPTION },
{ "Invalid opcode exception", B_INVALID_OPCODE_EXCEPTION },
{ "Segment not present", B_SEGMENT_NOT_PRESENT },
{ "Stack fault", B_STACK_FAULT },
{ "General protection fault", B_GENERAL_PROTECTION_FAULT },
{ "Floating point exception", B_FLOATING_POINT_EXCEPTION },
{ NULL, 0 }
};
static const int32 sDebugExceptionTypeStringCount
= B_FLOATING_POINT_EXCEPTION + 1;
void
@@ -105,33 +112,39 @@ wait_for_debugger(void)
static void
get_debug_string(const char *const *strings, int32 stringCount,
const char *defaultString, int32 index, char *buffer, int32 bufferSize)
get_debug_string(const debug_string_entry *stringEntries,
const char *defaultString, uint32 code, char *buffer, int32 bufferSize)
{
int i;
if (!buffer || bufferSize <= 0)
return;
if ((int32)index >= 0 && (int32)index < stringCount)
strlcpy(buffer, strings[index], bufferSize);
else
snprintf(buffer, bufferSize, defaultString, index);
for (i = 0; stringEntries[i].string; i++) {
if (stringEntries[i].code == code) {
strlcpy(buffer, stringEntries[i].string, bufferSize);
return;
}
}
snprintf(buffer, bufferSize, defaultString, code);
}
void
get_debug_why_stopped_string(debug_why_stopped whyStopped, char *buffer,
get_debug_message_string(debug_debugger_message message, char *buffer,
int32 bufferSize)
{
get_debug_string(sDebugWhyStrings, sDebugWhyStringCount,
"Unknown reason %ld", (int32)whyStopped, buffer, bufferSize);
get_debug_string(sDebugMessageStrings, "Unknown message %lu",
(uint32)message, buffer, bufferSize);
}
void
get_debug_exception_string(debug_exception_type exception, char *buffer,
int32 bufferSize)
{
get_debug_string(sDebugExceptionTypeStrings, sDebugExceptionTypeStringCount,
"Unknown exception %ld", (int32)exception, buffer, bufferSize);
get_debug_string(sDebugExceptionTypeStrings, "Unknown exception %lu",
(uint32)exception, buffer, bufferSize);
}