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This commit is contained in:
Søren Sandmann Pedersen
2004-11-17 23:37:44 +00:00
parent 38891db079
commit 3b6a53efaf
6 changed files with 157 additions and 111 deletions
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2
Makefile
View File

@ -7,7 +7,7 @@ else
CFLAGS := $(shell pkg-config --cflags gtk+-2.0 libglade-2.0) -Wall -g
LIBS := $(shell pkg-config --libs gtk+-2.0 libglade-2.0) -lbfd -liberty
C_FILES := sysprof.c binfile.c stackstash.c watch.c process.c profile.c treeviewutils.c
C_FILES := sysprof.c binfile.c stackstash.c watch.c process.c profile.c treeviewutils.c sfile.c
OBJS := $(addsuffix .o, $(basename $(C_FILES)))
BINARY := sysprof
MODULE := sysprof-module

7
TODO
View File

@ -1,14 +1,15 @@
- consider caching [filename => bin_file]
- Have kernel modulereport the file the symbol was found in
Should avoid a lot of potential brokenness with dlopen etc.
Should avoid a lot of potential broken/raciness with dlopen etc.
- grep FIXME
- hide internal stuff in ProfileDescendant
- loading and saving
- Non-GUI version that can save in a format the GUI can understand.
Could be used for profiling startup etc. Should be able to dump the
data to a network socket.
Could be used for profiling startup etc. Would preferably be able to
dump the data to a network socket. Should be able to react to eg.
SIGUSR1 by dumping the data.
- Port to GtkAction

2
profile.c
View File

@ -190,6 +190,7 @@ get_number (const char *input_name,
return -1;
}
#if 0
static Node *
create_node (const char **names,
const char **values,
@ -345,6 +346,7 @@ profile_load (const char *filename,
return result;
}
#endif
static void
profile_object_free (ProfileObject *obj)

239
sfile.c
View File

@ -72,6 +72,40 @@ struct Fragment
struct Action
{
TransitionType type;
char *name;
union
{
struct
{
} begin_record;
struct
{
int n_items;
} begin_list;
struct
{
int id;
} end;
struct
{
gpointer *location;
} pointer;
struct
{
int value;
} integer;
struct
{
char *value;
} string;
} u;
};
static State *
@ -426,9 +460,9 @@ typedef struct ParseNode ParseNode;
struct BuildContext
{
ParseNode *root;
ParseNode *current_node;
GHashTable *nodes_by_id;
State *state;
Action *actions;
int n_actions;
};
struct ParseNode
@ -442,42 +476,6 @@ struct ParseNode
SFormat *format;
};
void
sfile_begin_get_record (SFileInput *file)
{
}
int
sfile_begin_get_list (SFileInput *file)
{
return -1; /* FIXME */
}
void
sfile_get_pointer (SFileInput *file,
gpointer *pointer)
{
}
void
sfile_get_integer (SFileInput *file,
int *integer)
{
}
void
sfile_get_string (SFileInput *file,
char **string)
{
}
void
sfile_end_get (SFileInput *file,
gpointer object)
{
}
static gboolean
get_number (const char *text, int *number)
{
@ -498,6 +496,98 @@ get_number (const char *text, int *number)
return TRUE;
}
struct SFileInput
{
int n_actions;
Action *actions;
Action *current_action;
GHashTable *actions_by_location;
GHashTable *objects_by_id;
};
void
sfile_begin_get_record (SFileInput *file, const char *name)
{
Action *action = file->current_action++;
g_return_if_fail (action->type == BEGIN_RECORD &&
strcmp (action->name, name) == 0);
}
int
sfile_begin_get_list (SFileInput *file,
const char *name)
{
Action *action = file->current_action++;
g_return_val_if_fail (action->type == BEGIN_LIST &&
strcmp (action->name, name) == 0, 0);
return action->u.begin_list.n_items;
}
void
sfile_get_pointer (SFileInput *file,
const char *name,
gpointer *location)
{
Action *action = file->current_action++;
g_return_if_fail (action->type == POINTER &&
strcmp (action->name, name) == 0);
action->u.pointer.location = location;
if (location)
{
if (g_hash_table_lookup (file->actions_by_location, location))
g_warning ("Reading into the same location twice\n");
g_hash_table_insert (file->actions_by_location, location, action);
}
}
void
sfile_get_integer (SFileInput *file,
const char *name,
int *integer)
{
Action *action = file->current_action++;
g_return_if_fail (action->type == INTEGER &&
strcmp (action->name, name) == 0);
if (integer)
*integer = action->u.integer.value;
}
void
sfile_get_string (SFileInput *file,
const char *name,
char **string)
{
Action *action = file->current_action++;
g_return_if_fail (action->type == STRING &&
strcmp (action->name, name) == 0);
if (string)
*string = g_strdup (action->u.string.value);
}
void
sfile_end_get (SFileInput *file,
const char *name,
gpointer object)
{
Action *action = file->current_action++;
g_return_if_fail ((action->type == END_LIST ||
action->type == END_RECORD) &&
strcmp (action->name, name) == 0);
if (action->u.end.id)
g_hash_table_insert (file->objects_by_id,
GINT_TO_POINTER (action->u.end.id), object);
}
static ParseNode *
parse_node_new (ParseNode *parent,
const char *name)
@ -526,7 +616,7 @@ handle_begin_element (GMarkupParseContext *parse_context,
{
BuildContext *build = user_data;
const char *id_string;
ParseNode *node;
Action action;
int id;
int i;
@ -559,24 +649,10 @@ handle_begin_element (GMarkupParseContext *parse_context,
}
}
if (build->current_node->text->len > 0)
{
/* FIXME: mixing children and text */
return;
}
node = parse_node_new (build->current_node, element_name);
/* */
if (id_string)
{
node->id = GINT_TO_POINTER (id);
g_hash_table_insert (build->nodes_by_id, node->id, node);
}
build->current_node = node;
if (!build->root)
build->root = node;
if (!state_transition_begin (build->state, element_name, &action.type, err)) {
};
}
static void
@ -586,8 +662,6 @@ handle_end_element (GMarkupParseContext *context,
GError **err)
{
BuildContext *build = user_data;
build->current_node = build->current_node->parent;
}
static void
@ -598,20 +672,10 @@ handle_text (GMarkupParseContext *context,
GError **err)
{
BuildContext *build = user_data;
if (build->current_node->children->len > 0)
{
/* FIXME: set error: mixing children and text */
return;
}
g_string_append (build->current_node->text, text);
}
static ParseNode *
build_tree (const char *text,
GHashTable *nodes_by_id,
GError **err)
static Action *
build_actions (const char *contents, int *n_actions, GError **err)
{
BuildContext build;
GMarkupParseContext *parse_context;
@ -624,41 +688,15 @@ build_tree (const char *text,
NULL, /* error */
};
build.root = NULL;
build.current_node = NULL;
build.nodes_by_id = nodes_by_id;
parse_context = g_markup_parse_context_new (&parser, 0, &build, NULL);
if (!g_markup_parse_context_parse (parse_context, text, -1, err))
if (!g_markup_parse_context_parse (parse_context, contents, -1, err))
{
/* FIXME: free stuff */
return NULL;
}
if (!build.root)
{
/* FIXME: empty document not allowed */
/* FIXME: free stuff */
return NULL;
}
return build.root;
}
static gboolean check_structure (ParseNode *node, SFormat *format, GHashTable *nodes_by_id, GError **err);
struct SFileInput
{
int n_actions;
Action *actions;
};
static Action *
build_actions (const char *contents, int *n_actions, GError **err)
{
return NULL; /* FIXME */
return build.actions;
}
SFileInput *
@ -668,9 +706,6 @@ sfile_load (const char *filename,
{
gchar *contents;
gsize length;
ParseNode *tree;
GHashTable *nodes_by_id;
GArray *read_list;
SFileInput *input;
if (!g_file_get_contents (filename, &contents, &length, err))

8
sfile.h
View File

@ -17,15 +17,19 @@ gpointer sformat_new_string (const char *name);
SFileInput * sfile_load (const char *filename,
SFormat *format,
GError **err);
void sfile_begin_get_record (SFileInput *file);
int sfile_begin_get_list (SFileInput *file);
void sfile_begin_get_record (SFileInput *file, const char *name);
int sfile_begin_get_list (SFileInput *file, const char *name);
void sfile_get_pointer (SFileInput *file,
const char *name,
gpointer *pointer);
void sfile_get_integer (SFileInput *file,
const char *name,
int *integer);
void sfile_get_string (SFileInput *file,
const char *name,
char **string);
void sfile_end_get (SFileInput *file,
const char *name,
gpointer object);
#if 0

10
sysprof-module.c
View File

@ -78,13 +78,16 @@ init_userspace_reader (userspace_reader *reader,
reader->page = NULL;
}
/* This is mostly cutted and pasted from ptrace.c
* I removed some locking and other stuff though. I hope it
* wasn't important.
*/
/* Access another process' address space.
* Source/target buffer must be kernel space,
* Do not walk the page table directly, use get_user_pages
*/
static int x_access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, int write)
{
struct mm_struct *mm;
@ -244,6 +247,7 @@ generate_stack_trace(struct task_struct *task,
init_userspace_reader (&reader, task);
while (i < SYSPROF_MAX_ADDRESSES && read_frame (&reader, addr, &frame) &&
addr < START_OF_STACK && addr >= regs->esp) {
trace->addresses[i++] = (void *)frame.return_address;
addr = frame.next;
}