/**
* mono_debug_lookup_source_location:
* @address: Native offset within the @method's machine code.
*
* Lookup the source code corresponding to the machine instruction located at
* native offset @address within @method.
*
* The returned `MonoDebugSourceLocation' contains both file / line number
* information and the corresponding IL offset. It must be freed by
* mono_debug_free_source_location().
*/
MonoDebugSourceLocation *
mono_debug_lookup_source_location (MonoMethod *method, guint32 address, MonoDomain *domain)
{
MonoDebugMethodInfo *minfo;
MonoDebugSourceLocation *location;
gint32 offset;
if (mono_debug_format == MONO_DEBUG_FORMAT_NONE)
return NULL;
mono_debugger_lock ();
minfo = _mono_debug_lookup_method (method);
if (!minfo || !minfo->handle || !minfo->handle->symfile || !mono_debug_symfile_is_loaded (minfo->handle->symfile)) {
mono_debugger_unlock ();
return NULL;
}
offset = il_offset_from_address (method, domain, address);
if (offset < 0) {
mono_debugger_unlock ();
return NULL;
}
location = mono_debug_symfile_lookup_location (minfo, offset);
mono_debugger_unlock ();
return location;
}
/**
* mono_debug_lookup_source_location_by_il:
*
* Same as mono_debug_lookup_source_location but take an IL_OFFSET argument.
*/
MonoDebugSourceLocation *
mono_debug_lookup_source_location_by_il (MonoMethod *method, guint32 il_offset, MonoDomain *domain)
{
MonoDebugMethodInfo *minfo;
MonoDebugSourceLocation *location;
if (mono_debug_format == MONO_DEBUG_FORMAT_NONE)
return NULL;
mono_debugger_lock ();
minfo = mono_debug_lookup_method_internal (method);
if (!minfo || !minfo->handle) {
mono_debugger_unlock ();
return NULL;
}
if (!minfo->handle->ppdb && (!minfo->handle->symfile || !mono_debug_symfile_is_loaded (minfo->handle->symfile))) {
mono_debugger_unlock ();
return NULL;
}
if (minfo->handle->ppdb)
location = mono_ppdb_lookup_location (minfo, il_offset);
else
location = mono_debug_symfile_lookup_location (minfo, il_offset);
mono_debugger_unlock ();
return location;
}
/**
* mono_profiler_coverage_get:
* @prof: The profiler handle, installed with mono_profiler_install
* @method: the method to gather information from.
* @func: A routine that will be called back with the results
*
* If the MONO_PROFILER_INS_COVERAGE flag was active during JIT compilation
* it is posisble to obtain coverage information about a give method.
*
* The function @func will be invoked repeatedly with instances of the
* MonoProfileCoverageEntry structure.
*/
void
mono_profiler_coverage_get (MonoProfiler *prof, MonoMethod *method, MonoProfileCoverageFunc func)
{
MonoError error;
MonoProfileCoverageInfo* info = NULL;
int i, offset;
guint32 code_size;
const unsigned char *start, *end, *cil_code;
MonoMethodHeader *header;
MonoProfileCoverageEntry entry;
MonoDebugMethodInfo *debug_minfo;
mono_profiler_coverage_lock ();
if (coverage_hash)
info = (MonoProfileCoverageInfo *)g_hash_table_lookup (coverage_hash, method);
mono_profiler_coverage_unlock ();
if (!info)
return;
header = mono_method_get_header_checked (method, &error);
mono_error_assert_ok (&error);
start = mono_method_header_get_code (header, &code_size, NULL);
debug_minfo = mono_debug_lookup_method (method);
end = start + code_size;
for (i = 0; i < info->entries; ++i) {
cil_code = info->data [i].cil_code;
if (cil_code && cil_code >= start && cil_code < end) {
char *fname = NULL;
offset = cil_code - start;
entry.iloffset = offset;
entry.method = method;
entry.counter = info->data [i].count;
entry.line = entry.col = 1;
entry.filename = NULL;
if (debug_minfo) {
MonoDebugSourceLocation *location;
location = mono_debug_symfile_lookup_location (debug_minfo, offset);
if (location) {
entry.line = location->row;
entry.col = location->column;
entry.filename = fname = g_strdup (location->source_file);
mono_debug_free_source_location (location);
}
}
func (prof, &entry);
g_free (fname);
}
}
mono_metadata_free_mh (header);
}
MonoDebugSourceLocation *
mono_debug_method_lookup_location (MonoDebugMethodInfo *minfo, int il_offset)
{
MonoDebugSourceLocation *location;
mono_debugger_lock ();
if (minfo->handle->ppdb)
location = mono_ppdb_lookup_location (minfo, il_offset);
else
location = mono_debug_symfile_lookup_location (minfo, il_offset);
mono_debugger_unlock ();
return location;
}
/*
* mono_debug_add_vg_method:
*
* Register symbol information for the method with valgrind
*/
static void
mono_debug_add_vg_method (MonoMethod *method, MonoDebugMethodJitInfo *jit)
{
#ifdef VALGRIND_ADD_LINE_INFO
MonoMethodHeader *header;
MonoDebugMethodInfo *minfo;
int i;
char *filename = NULL;
guint32 address, line_number;
const char *full_name;
guint32 *addresses;
guint32 *lines;
if (!RUNNING_ON_VALGRIND)
return;
header = mono_method_get_header (method);
full_name = mono_method_full_name (method, TRUE);
addresses = g_new0 (guint32, header->code_size + 1);
lines = g_new0 (guint32, header->code_size + 1);
/*
* Very simple code to convert the addr->offset mappings that mono has
* into [addr-addr] ->line number mappings.
*/
minfo = mono_debug_lookup_method (method);
if (minfo) {
/* Create offset->line number mapping */
for (i = 0; i < header->code_size; ++i) {
MonoDebugSourceLocation *location;
location = mono_debug_symfile_lookup_location (minfo, i);
if (!location)
continue;
lines [i] = location.row;
if (!filename)
filename = location.source_file;
mono_debug_free_source_location (location);
}
}
/* Create address->offset mapping */
for (i = 0; i < jit->num_line_numbers; ++i) {
MonoDebugLineNumberEntry *lne = jit->line_numbers [i];
g_assert (lne->offset <= header->code_size);
if ((addresses [lne->offset] == 0) || (lne->address < addresses [lne->offset]))
addresses [lne->offset] = lne->address;
}
/* Fill out missing addresses */
address = 0;
for (i = 0; i < header->code_size; ++i) {
if (addresses [i] == 0)
addresses [i] = address;
else
address = addresses [i];
}
address = 0;
line_number = 0;
i = 0;
while (i < header->code_size) {
if (lines [i] == line_number)
i ++;
else {
if (line_number > 0) {
//g_assert (addresses [i] - 1 >= address);
if (addresses [i] - 1 >= address) {
VALGRIND_ADD_LINE_INFO (jit->code_start + address, jit->code_start + addresses [i] - 1, filename, line_number);
//printf ("[%d-%d] -> %d.\n", address, addresses [i] - 1, line_number);
}
}
address = addresses [i];
line_number = lines [i];
}
}
if (line_number > 0) {
VALGRIND_ADD_LINE_INFO (jit->code_start + address, jit->code_start + jit->code_size - 1, filename, line_number);
//printf ("[%d-%d] -> %d.\n", address, jit->code_size - 1, line_number);
}
VALGRIND_ADD_SYMBOL (jit->code_start, jit->code_size, full_name);
g_free (addresses);
g_free (lines);
mono_metadata_free_mh (header);
#endif /* VALGRIND_ADD_LINE_INFO */
}