+/*
+ * debug-mono-symfile.c:
+ *
+ * Author:
+ * Mono Project (http://www.mono-project.com)
+ *
+ * Copyright (C) 2005-2008 Novell, Inc. (http://www.novell.com)
+ */
+
#include <config.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
-#include <signal.h>
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#define TYPE_TABLE_PTR_CHUNK_SIZE 256
#define TYPE_TABLE_CHUNK_SIZE 65536
+struct _MonoSymbolFile {
+ const uint8_t *raw_contents;
+ int raw_contents_size;
+ void *raw_contents_handle;
+ int major_version;
+ int minor_version;
+ char *filename;
+ GHashTable *method_hash;
+ MonoSymbolFileOffsetTable *offset_table;
+ gboolean was_loaded_from_memory;
+};
+
static void
free_method_info (MonoDebugMethodInfo *minfo)
{
}
static int
-load_symfile (MonoDebugHandle *handle, MonoSymbolFile *symfile, gboolean in_the_debugger)
+load_symfile (MonoDebugHandle *handle, MonoSymbolFile *symfile, mono_bool in_the_debugger)
{
const char *ptr, *start;
gchar *guid;
- guint64 magic;
+ uint64_t magic;
int minor, major;
ptr = start = (const char*)symfile->raw_contents;
return FALSE;
magic = read64(ptr);
- ptr += sizeof(guint64);
+ ptr += sizeof(uint64_t);
if (magic != MONO_SYMBOL_FILE_MAGIC) {
if (!in_the_debugger)
g_warning ("Symbol file %s is not a mono symbol file", symfile->filename);
}
major = read32(ptr);
- ptr += sizeof(guint32);
+ ptr += sizeof(uint32_t);
minor = read32(ptr);
- ptr += sizeof(guint32);
+ ptr += sizeof(uint32_t);
/*
* 50.0 is the frozen version for Mono 2.0.
return FALSE;
}
- guid = mono_guid_to_string ((const guint8 *) ptr);
+ guid = mono_guid_to_string ((const uint8_t *) ptr);
ptr += 16;
if (strcmp (handle->image->guid, guid)) {
symfile->offset_table = (MonoSymbolFileOffsetTable *) ptr;
symfile->method_hash = g_hash_table_new_full (
- g_direct_hash, g_direct_equal, NULL, (GDestroyNotify) free_method_info);
+ NULL, NULL, NULL, (GDestroyNotify) free_method_info);
g_free (guid);
return TRUE;
}
MonoSymbolFile *
-mono_debug_open_mono_symbols (MonoDebugHandle *handle, const guint8 *raw_contents,
+mono_debug_open_mono_symbols (MonoDebugHandle *handle, const uint8_t *raw_contents,
int size, gboolean in_the_debugger)
{
MonoSymbolFile *symfile;
- FILE* f;
mono_debugger_lock ();
symfile = g_new0 (MonoSymbolFile, 1);
symfile->raw_contents = p = g_malloc (size);
memcpy (p, raw_contents, size);
symfile->filename = g_strdup_printf ("LoadedFromMemory");
+ symfile->was_loaded_from_memory = TRUE;
} else {
+ MonoFileMap *f;
symfile->filename = g_strdup_printf ("%s.mdb", mono_image_get_filename (handle->image));
-
- if ((f = fopen (symfile->filename, "rb"))) {
- struct stat stat_buf;
-
- if (fstat (fileno (f), &stat_buf) < 0) {
+ symfile->was_loaded_from_memory = FALSE;
+ if ((f = mono_file_map_open (symfile->filename))) {
+ symfile->raw_contents_size = mono_file_map_size (f);
+ if (symfile->raw_contents_size == 0) {
if (!in_the_debugger)
g_warning ("stat of %s failed: %s",
symfile->filename, g_strerror (errno));
} else {
- symfile->raw_contents_size = stat_buf.st_size;
- symfile->raw_contents = mono_file_map (stat_buf.st_size, MONO_MMAP_READ|MONO_MMAP_PRIVATE, fileno (f), 0, &symfile->raw_contents_handle);
+ symfile->raw_contents = mono_file_map (symfile->raw_contents_size, MONO_MMAP_READ|MONO_MMAP_PRIVATE, mono_file_map_fd (f), 0, &symfile->raw_contents_handle);
}
- fclose (f);
+ mono_file_map_close (f);
}
}
if (symfile->method_hash)
g_hash_table_destroy (symfile->method_hash);
- if (symfile->raw_contents)
- mono_file_unmap ((gpointer) symfile->raw_contents, symfile->raw_contents_handle);
+ if (symfile->raw_contents) {
+ if (symfile->was_loaded_from_memory)
+ g_free ((gpointer)symfile->raw_contents);
+ else
+ mono_file_unmap ((gpointer) symfile->raw_contents, symfile->raw_contents_handle);
+ }
if (symfile->filename)
g_free (symfile->filename);
mono_debugger_unlock ();
}
+mono_bool
+mono_debug_symfile_is_loaded (MonoSymbolFile *symfile)
+{
+ return symfile && symfile->offset_table;
+}
+
+
static int
-read_leb128 (const guint8 *ptr, const guint8 **rptr)
+read_leb128 (const uint8_t *ptr, const uint8_t **rptr)
{
int ret = 0;
int shift = 0;
}
static gchar *
-read_string (const guint8 *ptr)
+read_string (const uint8_t *ptr)
{
int len = read_leb128 (ptr, &ptr);
return g_filename_from_utf8 ((const char *) ptr, len, NULL, NULL, NULL);
typedef struct {
MonoSymbolFile *symfile;
int line_base, line_range, max_address_incr;
- guint8 opcode_base;
- guint32 last_line, last_file, last_offset;
- guint32 line, file, offset;
+ uint8_t opcode_base;
+ uint32_t last_line, last_file, last_offset;
+ uint32_t first_file;
+ int line, file, offset;
+ gboolean is_hidden;
} StatementMachine;
static gboolean
{
gchar *source_file = NULL;
- if ((offset > 0) && (stm->offset <= offset)) {
+ if (stm->offset <= offset) {
stm->last_offset = stm->offset;
stm->last_file = stm->file;
if (stm->line != 0xfeefee)
source_file = read_string (stm->symfile->raw_contents + read32(&(se->_data_offset)));
}
+ if (stm->last_line == 0) {
+ /*
+ * The IL offset is less than the first IL offset which has a corresponding
+ * source line.
+ */
+ *location = NULL;
+ return TRUE;
+ }
+
*location = g_new0 (MonoDebugSourceLocation, 1);
(*location)->source_file = source_file;
(*location)->row = stm->last_line;
* `native address -> IL offset' mapping.
*/
MonoDebugSourceLocation *
-mono_debug_symfile_lookup_location (MonoDebugMethodInfo *minfo, guint32 offset)
+mono_debug_symfile_lookup_location (MonoDebugMethodInfo *minfo, uint32_t offset)
{
MonoDebugSourceLocation *location = NULL;
MonoSymbolFile *symfile;
#define DW_LNE_end_sequence 1
#define DW_LNE_MONO_negate_is_hidden 0x40
+#define DW_LNE_MONO__extensions_start 0x40
+#define DW_LNE_MONO__extensions_end 0x7f
+
if ((symfile = minfo->handle->symfile) == NULL)
return NULL;
stm.line_base = read32 (&symfile->offset_table->_line_number_table_line_base);
stm.line_range = read32 (&symfile->offset_table->_line_number_table_line_range);
- stm.opcode_base = (guint8) read32 (&symfile->offset_table->_line_number_table_opcode_base);
+ stm.opcode_base = (uint8_t) read32 (&symfile->offset_table->_line_number_table_opcode_base);
stm.max_address_incr = (255 - stm.opcode_base) / stm.line_range;
mono_debugger_lock ();
stm.symfile = symfile;
stm.offset = stm.last_offset = 0;
- stm.file = stm.last_file = 1;
- stm.line = stm.last_line = 1;
+ stm.last_file = 0;
+ stm.last_line = 0;
+ stm.first_file = 0;
+ stm.file = 1;
+ stm.line = 1;
+ stm.is_hidden = FALSE;
while (TRUE) {
- guint8 opcode = *ptr++;
+ uint8_t opcode = *ptr++;
if (opcode == 0) {
- guint8 size = *ptr++;
+ uint8_t size = *ptr++;
const unsigned char *end_ptr = ptr + size;
opcode = *ptr++;
goto out_success;
break;
} else if (opcode == DW_LNE_MONO_negate_is_hidden) {
- ;
+ stm.is_hidden = !stm.is_hidden;
+ } else if ((opcode >= DW_LNE_MONO__extensions_start) &&
+ (opcode <= DW_LNE_MONO__extensions_end)) {
+ ; // reserved for future extensions
} else {
g_warning ("Unknown extended opcode %x in LNT", opcode);
}
return location;
}
-gint32
-_mono_debug_address_from_il_offset (MonoDebugMethodJitInfo *jit, guint32 il_offset)
+static void
+add_line (StatementMachine *stm, GPtrArray *il_offset_array, GPtrArray *line_number_array)
+{
+ if (stm->line > 0) {
+ g_ptr_array_add (il_offset_array, GUINT_TO_POINTER (stm->offset));
+ g_ptr_array_add (line_number_array, GUINT_TO_POINTER (stm->line));
+ }
+
+ if (!stm->is_hidden && !stm->first_file)
+ stm->first_file = stm->file;
+}
+
+/*
+ * mono_debug_symfile_free_location:
+ *
+ * Free a MonoDebugSourceLocation returned by
+ * mono_debug_symfile_lookup_location
+ */
+void
+mono_debug_symfile_free_location (MonoDebugSourceLocation *location)
+{
+ g_free (location->source_file);
+ g_free (location);
+}
+
+/*
+ * mono_debug_symfile_get_line_numbers:
+ *
+ * All the output parameters can be NULL.
+ */
+void
+mono_debug_symfile_get_line_numbers (MonoDebugMethodInfo *minfo, char **source_file, int *n_il_offsets, int **il_offsets, int **line_numbers)
+{
+ // FIXME: Unify this with mono_debug_symfile_lookup_location
+ MonoSymbolFile *symfile;
+ const unsigned char *ptr;
+ StatementMachine stm;
+ uint32_t i;
+ GPtrArray *il_offset_array, *line_number_array;
+
+ if (source_file)
+ *source_file = NULL;
+ if (n_il_offsets)
+ *n_il_offsets = 0;
+
+ if ((symfile = minfo->handle->symfile) == NULL)
+ return;
+
+ il_offset_array = g_ptr_array_new ();
+ line_number_array = g_ptr_array_new ();
+
+ stm.line_base = read32 (&symfile->offset_table->_line_number_table_line_base);
+ stm.line_range = read32 (&symfile->offset_table->_line_number_table_line_range);
+ stm.opcode_base = (uint8_t) read32 (&symfile->offset_table->_line_number_table_opcode_base);
+ stm.max_address_incr = (255 - stm.opcode_base) / stm.line_range;
+
+ mono_debugger_lock ();
+
+ ptr = symfile->raw_contents + minfo->lnt_offset;
+
+ stm.symfile = symfile;
+ stm.offset = stm.last_offset = 0;
+ stm.last_file = 0;
+ stm.last_line = 0;
+ stm.first_file = 0;
+ stm.file = 1;
+ stm.line = 1;
+ stm.is_hidden = FALSE;
+
+ while (TRUE) {
+ uint8_t opcode = *ptr++;
+
+ if (opcode == 0) {
+ uint8_t size = *ptr++;
+ const unsigned char *end_ptr = ptr + size;
+
+ opcode = *ptr++;
+
+ if (opcode == DW_LNE_end_sequence) {
+ add_line (&stm, il_offset_array, line_number_array);
+ break;
+ } else if (opcode == DW_LNE_MONO_negate_is_hidden) {
+ stm.is_hidden = !stm.is_hidden;
+ } else if ((opcode >= DW_LNE_MONO__extensions_start) &&
+ (opcode <= DW_LNE_MONO__extensions_end)) {
+ ; // reserved for future extensions
+ } else {
+ g_warning ("Unknown extended opcode %x in LNT", opcode);
+ }
+
+ ptr = end_ptr;
+ continue;
+ } else if (opcode < stm.opcode_base) {
+ switch (opcode) {
+ case DW_LNS_copy:
+ add_line (&stm, il_offset_array, line_number_array);
+ break;
+ case DW_LNS_advance_pc:
+ stm.offset += read_leb128 (ptr, &ptr);
+ break;
+ case DW_LNS_advance_line:
+ stm.line += read_leb128 (ptr, &ptr);
+ break;
+ case DW_LNS_set_file:
+ stm.file = read_leb128 (ptr, &ptr);
+ break;
+ case DW_LNS_const_add_pc:
+ stm.offset += stm.max_address_incr;
+ break;
+ default:
+ g_warning ("Unknown standard opcode %x in LNT", opcode);
+ g_assert_not_reached ();
+ }
+ } else {
+ opcode -= stm.opcode_base;
+
+ stm.offset += opcode / stm.line_range;
+ stm.line += stm.line_base + (opcode % stm.line_range);
+
+ add_line (&stm, il_offset_array, line_number_array);
+ }
+ }
+
+ if (!stm.file && stm.first_file)
+ stm.file = stm.first_file;
+
+ if (stm.file) {
+ int offset = read32(&(stm.symfile->offset_table->_source_table_offset)) +
+ (stm.file - 1) * sizeof (MonoSymbolFileSourceEntry);
+ MonoSymbolFileSourceEntry *se = (MonoSymbolFileSourceEntry *)
+ (stm.symfile->raw_contents + offset);
+
+ if (source_file)
+ *source_file = read_string (stm.symfile->raw_contents + read32(&(se->_data_offset)));
+ }
+
+ if (n_il_offsets)
+ *n_il_offsets = il_offset_array->len;
+ if (il_offsets && line_numbers) {
+ *il_offsets = g_malloc (il_offset_array->len * sizeof (int));
+ *line_numbers = g_malloc (il_offset_array->len * sizeof (int));
+ for (i = 0; i < il_offset_array->len; ++i) {
+ (*il_offsets) [i] = GPOINTER_TO_UINT (g_ptr_array_index (il_offset_array, i));
+ (*line_numbers) [i] = GPOINTER_TO_UINT (g_ptr_array_index (line_number_array, i));
+ }
+ }
+ g_ptr_array_free (il_offset_array, TRUE);
+ g_ptr_array_free (line_number_array, TRUE);
+
+ mono_debugger_unlock ();
+ return;
+}
+
+int32_t
+_mono_debug_address_from_il_offset (MonoDebugMethodJitInfo *jit, uint32_t il_offset)
{
int i;
static int
compare_method (const void *key, const void *object)
{
- guint32 token = GPOINTER_TO_UINT (key);
+ uint32_t token = GPOINTER_TO_UINT (key);
MonoSymbolFileMethodEntry *me = (MonoSymbolFileMethodEntry*)object;
return token - read32(&(me->_token));
return NULL;
mono_debugger_lock ();
+
+ minfo = g_hash_table_lookup (symfile->method_hash, method);
+ if (minfo) {
+ mono_debugger_unlock ();
+ return minfo;
+ }
+
first_ie = (MonoSymbolFileMethodEntry *)
(symfile->raw_contents + read32(&(symfile->offset_table->_method_table_offset)));
* mono_debug_symfile_lookup_locals:
*
* Return information about the local variables of MINFO from the symbol file.
- * NAMES and INDEXES are set to g_malloc-ed arrays containing the local names and
- * their IL indexes.
- * Returns: the number of elements placed into the arrays, or -1 if there is no
- * local variable info.
+ * Return NULL if no information can be found.
+ * The result should be freed using mono_debug_symfile_free_locals ().
*/
-int
-mono_debug_symfile_lookup_locals (MonoDebugMethodInfo *minfo, char ***names, int **indexes)
+MonoDebugLocalsInfo*
+mono_debug_symfile_lookup_locals (MonoDebugMethodInfo *minfo)
{
MonoSymbolFile *symfile = minfo->handle->symfile;
- const guint8 *p;
- int i, len, compile_unit_index, locals_offset, num_locals, index, block_index;
-
- *names = NULL;
- *indexes = NULL;
+ const uint8_t *p;
+ int i, len, compile_unit_index, locals_offset, num_locals, block_index;
+ int namespace_id, code_block_table_offset;
+ MonoDebugLocalsInfo *res;
if (!symfile)
- return -1;
+ return NULL;
p = symfile->raw_contents + minfo->data_offset;
compile_unit_index = read_leb128 (p, &p);
locals_offset = read_leb128 (p, &p);
+ namespace_id = read_leb128 (p, &p);
+ code_block_table_offset = read_leb128 (p, &p);
+
+ res = g_new0 (MonoDebugLocalsInfo, 1);
+
+ p = symfile->raw_contents + code_block_table_offset;
+ res->num_blocks = read_leb128 (p, &p);
+ res->code_blocks = g_new0 (MonoDebugCodeBlock, res->num_blocks);
+ for (i = 0; i < res->num_blocks; ++i) {
+ res->code_blocks [i].type = read_leb128 (p, &p);
+ res->code_blocks [i].parent = read_leb128 (p, &p);
+ res->code_blocks [i].start_offset = read_leb128 (p, &p);
+ res->code_blocks [i].end_offset = read_leb128 (p, &p);
+ }
p = symfile->raw_contents + locals_offset;
num_locals = read_leb128 (p, &p);
- *names = g_new0 (char*, num_locals);
- *indexes = g_new0 (int, num_locals);
+ res->num_locals = num_locals;
+ res->locals = g_new0 (MonoDebugLocalVar, num_locals);
for (i = 0; i < num_locals; ++i) {
- index = read_leb128 (p, &p);
- (*indexes) [i] = index;
+ res->locals [i].index = read_leb128 (p, &p);
len = read_leb128 (p, &p);
- (*names) [i] = g_malloc (len + 1);
- memcpy ((*names) [i], p, len);
- (*names) [i][len] = '\0';
+ res->locals [i].name = g_malloc (len + 1);
+ memcpy (res->locals [i].name, p, len);
+ res->locals [i].name [len] = '\0';
p += len;
block_index = read_leb128 (p, &p);
+ if (block_index >= 1 && block_index <= res->num_blocks)
+ res->locals [i].block = &res->code_blocks [block_index - 1];
}
- return num_locals;
+ return res;
}
+/*
+ * mono_debug_symfile_free_locals:
+ *
+ * Free all the data allocated by mono_debug_symfile_lookup_locals ().
+ */
+void
+mono_debug_symfile_free_locals (MonoDebugLocalsInfo *info)
+{
+ int i;
+
+ for (i = 0; i < info->num_locals; ++i)
+ g_free (info->locals [i].name);
+ g_free (info->locals);
+ g_free (info->code_blocks);
+ g_free (info);
+}
projects / mono.git / blobdiff