mirror of
https://github.com/varun-r-mallya/sysprof.git
synced 2025-12-31 20:36:25 +00:00
libsysprof: join libsysprof-analyze and libsysprof-profile
This brings together the two libraries back into one now that the whole design is pretty well sorted out. They depend on roughly the same libraries anyway and it's way easier of the single library can both read and write the capture files (along with bringing in libsysprof-capture symbols in a single place).
This commit is contained in:
Christian Hergert
257
src/libsysprof/sysprof-descendants-model.c
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257
src/libsysprof/sysprof-descendants-model.c
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/* sysprof-descendants-model.c
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*
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* Copyright 2023 Christian Hergert <chergert@redhat.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* SPDX-License-Identifier: GPL-3.0-or-later
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*/
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#include "config.h"
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#include "sysprof-callgraph-private.h"
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#include "sysprof-callgraph-frame-private.h"
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#include "sysprof-descendants-model-private.h"
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#include "sysprof-document-private.h"
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#include "sysprof-symbol-private.h"
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#define MAX_STACK_DEPTH 128
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struct _SysprofDescendantsModel
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{
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GObject parent_instance;
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SysprofCallgraph *callgraph;
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SysprofSymbol *symbol;
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SysprofCallgraphNode root;
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};
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static GType
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sysprof_descendants_model_get_item_type (GListModel *model)
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{
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return SYSPROF_TYPE_CALLGRAPH_FRAME;
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}
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static guint
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sysprof_descendants_model_get_n_items (GListModel *model)
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{
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return 1;
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}
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static gpointer
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sysprof_descendants_model_get_item (GListModel *model,
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guint position)
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{
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SysprofDescendantsModel *self = SYSPROF_DESCENDANTS_MODEL (model);
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if (position != 0)
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return NULL;
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return _sysprof_callgraph_frame_new_for_node (self->callgraph, G_OBJECT (self), &self->root);
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}
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static void
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list_model_iface_init (GListModelInterface *iface)
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{
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iface->get_item_type = sysprof_descendants_model_get_item_type;
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iface->get_n_items = sysprof_descendants_model_get_n_items;
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iface->get_item = sysprof_descendants_model_get_item;
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}
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G_DEFINE_FINAL_TYPE_WITH_CODE (SysprofDescendantsModel, sysprof_descendants_model, G_TYPE_OBJECT,
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G_IMPLEMENT_INTERFACE (G_TYPE_LIST_MODEL, list_model_iface_init))
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static void
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sysprof_descendants_model_finalize (GObject *object)
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{
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SysprofDescendantsModel *self = (SysprofDescendantsModel *)object;
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_sysprof_callgraph_node_free (&self->root, FALSE);
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g_clear_object (&self->callgraph);
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g_clear_object (&self->symbol);
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G_OBJECT_CLASS (sysprof_descendants_model_parent_class)->finalize (object);
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}
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static void
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sysprof_descendants_model_class_init (SysprofDescendantsModelClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->finalize = sysprof_descendants_model_finalize;
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}
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static void
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sysprof_descendants_model_init (SysprofDescendantsModel *self)
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{
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}
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static SysprofCallgraphNode *
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sysprof_descendants_model_add_trace (SysprofDescendantsModel *self,
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SysprofSymbol **symbols,
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guint n_symbols)
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{
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SysprofCallgraphNode *parent = NULL;
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g_assert (SYSPROF_IS_DESCENDANTS_MODEL (self));
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g_assert (symbols != NULL);
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g_assert (n_symbols > 0);
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parent = &self->root;
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for (guint i = n_symbols; i > 0; i--)
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{
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SysprofSymbol *symbol = symbols[i-1];
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SysprofCallgraphNode *node = NULL;
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SysprofCallgraphSummary *summary;
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/* Try to find @symbol within the children of @parent */
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for (SysprofCallgraphNode *iter = parent->children;
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iter != NULL;
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iter = iter->next)
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{
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g_assert (iter != NULL);
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g_assert (iter->summary != NULL);
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g_assert (iter->summary->symbol != NULL);
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g_assert (symbol != NULL);
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if (_sysprof_symbol_equal (iter->summary->symbol, symbol))
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{
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node = iter;
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goto next_symbol;
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}
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}
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if (!(summary = g_hash_table_lookup (self->callgraph->symbol_to_summary, symbol)))
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{
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node = parent;
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goto next_symbol;
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}
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/* Otherwise create a new node */
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node = g_new0 (SysprofCallgraphNode, 1);
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node->summary = summary;
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node->parent = parent;
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node->next = parent->children;
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if (parent->children)
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parent->children->prev = node;
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parent->children = node;
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g_assert (node->summary != NULL);
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next_symbol:
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parent = node;
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}
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return parent;
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}
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static void
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sysprof_descendants_model_add_traceable (SysprofDescendantsModel *self,
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SysprofDocument *document,
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SysprofDocumentTraceable *traceable,
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SysprofSymbol *from_symbol,
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gboolean include_threads)
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{
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SysprofAddressContext final_context;
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SysprofSymbol **symbols;
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SysprofSymbolKind kind;
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guint stack_depth;
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guint n_symbols;
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g_assert (SYSPROF_IS_DESCENDANTS_MODEL (self));
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g_assert (SYSPROF_IS_DOCUMENT (document));
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g_assert (SYSPROF_IS_DOCUMENT_TRACEABLE (traceable));
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g_assert (SYSPROF_IS_SYMBOL (from_symbol));
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stack_depth = MIN (MAX_STACK_DEPTH, sysprof_document_traceable_get_stack_depth (traceable));
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symbols = g_alloca (sizeof (SysprofSymbol *) * (stack_depth + 2));
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n_symbols = sysprof_document_symbolize_traceable (document, traceable, symbols, stack_depth, &final_context);
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kind = sysprof_symbol_get_kind (from_symbol);
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if (kind == SYSPROF_SYMBOL_KIND_PROCESS || kind == SYSPROF_SYMBOL_KIND_THREAD)
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{
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int pid = sysprof_document_frame_get_pid (SYSPROF_DOCUMENT_FRAME (traceable));
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if (include_threads)
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{
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int thread_id = sysprof_document_traceable_get_thread_id (traceable);
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symbols[n_symbols++] = _sysprof_document_thread_symbol (document, pid, thread_id);
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}
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symbols[n_symbols++] = _sysprof_document_process_symbol (document, pid);
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}
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for (guint i = n_symbols; i > 0; i--)
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{
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SysprofSymbol *symbol = symbols[i-1];
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n_symbols--;
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if (_sysprof_symbol_equal (symbol, from_symbol))
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break;
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}
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if (n_symbols > 0)
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{
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SysprofCallgraphNode *node;
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node = sysprof_descendants_model_add_trace (self, symbols, n_symbols);
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if (node && self->callgraph->augment_func)
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self->callgraph->augment_func (self->callgraph,
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node,
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SYSPROF_DOCUMENT_FRAME (traceable),
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FALSE,
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self->callgraph->augment_func_data);
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}
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}
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GListModel *
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_sysprof_descendants_model_new (SysprofCallgraph *callgraph,
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SysprofSymbol *symbol)
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{
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SysprofDescendantsModel *self;
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g_autoptr(SysprofDocument) document = NULL;
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g_autoptr(GListModel) model = NULL;
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gboolean include_threads;
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guint n_items;
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g_return_val_if_fail (SYSPROF_IS_CALLGRAPH (callgraph), NULL);
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g_return_val_if_fail (SYSPROF_IS_SYMBOL (symbol), NULL);
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model = sysprof_callgraph_list_traceables_for_symbol (callgraph, symbol);
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document = g_object_ref (callgraph->document);
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self = g_object_new (SYSPROF_TYPE_DESCENDANTS_MODEL, NULL);
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self->callgraph = g_object_ref (callgraph);
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self->symbol = g_object_ref (symbol);
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self->root.summary = g_hash_table_lookup (callgraph->symbol_to_summary, symbol);
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g_assert (self->root.summary != NULL);
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g_assert (_sysprof_symbol_equal (self->root.summary->symbol, symbol));
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include_threads = (callgraph->flags & SYSPROF_CALLGRAPH_FLAGS_INCLUDE_THREADS) != 0;
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n_items = g_list_model_get_n_items (model);
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for (guint i = 0; i < n_items; i++)
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{
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g_autoptr(SysprofDocumentTraceable) traceable = g_list_model_get_item (model, i);
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sysprof_descendants_model_add_traceable (self, document, traceable, symbol, include_threads);
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}
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return G_LIST_MODEL (self);
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}
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