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
307
src/libsysprof/sysprof-document-symbols.c
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307
src/libsysprof/sysprof-document-symbols.c
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/* sysprof-document-symbols.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 <glib/gi18n.h>
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#include "sysprof-address-layout-private.h"
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#include "sysprof-document-private.h"
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#include "sysprof-document-symbols-private.h"
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#include "sysprof-document-traceable.h"
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#include "sysprof-mount-namespace-private.h"
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#include "sysprof-no-symbolizer.h"
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#include "sysprof-symbol-private.h"
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#include "sysprof-symbolizer-private.h"
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G_DEFINE_FINAL_TYPE (SysprofDocumentSymbols, sysprof_document_symbols, G_TYPE_OBJECT)
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static void
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sysprof_document_symbols_finalize (GObject *object)
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{
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SysprofDocumentSymbols *self = (SysprofDocumentSymbols *)object;
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for (guint i = 0; i < G_N_ELEMENTS (self->context_switches); i++)
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g_clear_object (&self->context_switches[i]);
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g_clear_object (&self->kernel_symbols);
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G_OBJECT_CLASS (sysprof_document_symbols_parent_class)->finalize (object);
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}
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static void
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sysprof_document_symbols_class_init (SysprofDocumentSymbolsClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->finalize = sysprof_document_symbols_finalize;
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}
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static void
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sysprof_document_symbols_init (SysprofDocumentSymbols *self)
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{
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self->kernel_symbols = sysprof_symbol_cache_new ();
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}
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typedef struct _Symbolize
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{
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SysprofDocument *document;
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SysprofSymbolizer *symbolizer;
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SysprofDocumentSymbols *symbols;
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SysprofStrings *strings;
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GHashTable *pid_to_process_info;
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ProgressFunc progress_func;
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gpointer progress_data;
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GDestroyNotify progress_data_destroy;
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} Symbolize;
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static void
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symbolize_free (Symbolize *state)
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{
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if (state->progress_data_destroy)
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state->progress_data_destroy (state->progress_data);
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g_clear_object (&state->document);
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g_clear_object (&state->symbolizer);
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g_clear_object (&state->symbols);
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g_clear_pointer (&state->strings, sysprof_strings_unref);
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g_clear_pointer (&state->pid_to_process_info, g_hash_table_unref);
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g_free (state);
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}
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static void
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add_traceable (SysprofDocumentSymbols *self,
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SysprofStrings *strings,
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SysprofProcessInfo *process_info,
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SysprofDocumentTraceable *traceable,
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SysprofSymbolizer *symbolizer)
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{
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SysprofAddressContext last_context;
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guint64 *addresses;
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guint n_addresses;
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g_assert (SYSPROF_IS_DOCUMENT_TRACEABLE (traceable));
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g_assert (SYSPROF_IS_SYMBOLIZER (symbolizer));
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n_addresses = sysprof_document_traceable_get_stack_depth (traceable);
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addresses = g_alloca (sizeof (guint64) * n_addresses);
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sysprof_document_traceable_get_stack_addresses (traceable, addresses, n_addresses);
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last_context = SYSPROF_ADDRESS_CONTEXT_NONE;
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for (guint i = 0; i < n_addresses; i++)
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{
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SysprofAddress address = addresses[i];
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SysprofAddressContext context = SYSPROF_ADDRESS_CONTEXT_NONE;
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if (sysprof_address_is_context_switch (address, &context))
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{
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last_context = context;
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continue;
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}
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if (last_context == SYSPROF_ADDRESS_CONTEXT_KERNEL)
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{
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g_autoptr(SysprofSymbol) symbol = NULL;
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if (sysprof_symbol_cache_lookup (self->kernel_symbols, address) != NULL)
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continue;
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if ((symbol = _sysprof_symbolizer_symbolize (symbolizer, strings, process_info, last_context, address)))
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sysprof_symbol_cache_take (self->kernel_symbols, g_steal_pointer (&symbol));
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}
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else
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{
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g_autoptr(SysprofSymbol) symbol = NULL;
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if (process_info != NULL &&
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sysprof_symbol_cache_lookup (process_info->symbol_cache, address) != NULL)
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continue;
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if ((symbol = _sysprof_symbolizer_symbolize (symbolizer, strings, process_info, last_context, address)))
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sysprof_symbol_cache_take (process_info->symbol_cache, g_steal_pointer (&symbol));
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}
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}
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}
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static void
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sysprof_document_symbols_worker (GTask *task,
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gpointer source_object,
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gpointer task_data,
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GCancellable *cancellable)
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{
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static const struct {
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const char *name;
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guint value;
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} context_switches[] = {
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{ "- - Hypervisor - -", SYSPROF_ADDRESS_CONTEXT_HYPERVISOR },
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{ "- - Kernel - -", SYSPROF_ADDRESS_CONTEXT_KERNEL },
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{ "- - User - -", SYSPROF_ADDRESS_CONTEXT_USER },
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{ "- - Guest - -", SYSPROF_ADDRESS_CONTEXT_GUEST },
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{ "- - Guest Kernel - -", SYSPROF_ADDRESS_CONTEXT_GUEST_KERNEL },
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{ "- - Guest User - -", SYSPROF_ADDRESS_CONTEXT_GUEST_USER },
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};
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g_autoptr(GRefString) context_switch = g_ref_string_new_intern ("Context Switch");
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Symbolize *state = task_data;
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EggBitsetIter iter;
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EggBitset *bitset;
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GListModel *model;
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guint count = 0;
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guint i;
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g_assert (source_object == NULL);
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g_assert (G_IS_TASK (task));
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g_assert (!cancellable || G_IS_CANCELLABLE (cancellable));
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g_assert (state != NULL);
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g_assert (SYSPROF_IS_DOCUMENT (state->document));
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g_assert (SYSPROF_IS_SYMBOLIZER (state->symbolizer));
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g_assert (SYSPROF_IS_DOCUMENT_SYMBOLS (state->symbols));
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bitset = _sysprof_document_traceables (state->document);
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model = G_LIST_MODEL (state->document);
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/* Create static symbols for context switch use */
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for (guint cs = 0; cs < G_N_ELEMENTS (context_switches); cs++)
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{
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g_autoptr(SysprofSymbol) symbol = _sysprof_symbol_new (g_ref_string_new_intern (context_switches[cs].name),
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NULL,
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g_ref_string_acquire (context_switch),
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0, 0,
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SYSPROF_SYMBOL_KIND_CONTEXT_SWITCH);
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/* TODO: It would be nice if we had enough insight from the capture header
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* as to the host system, so we can show "vmlinuz" and "Linux" respectively
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* for binary-path and binary-nick when the capture came from Linux.
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*/
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state->symbols->context_switches[context_switches[cs].value] = g_steal_pointer (&symbol);
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}
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/* Walk through the available traceables which need symbols extracted */
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if (!SYSPROF_IS_NO_SYMBOLIZER (state->symbolizer) &&
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egg_bitset_iter_init_first (&iter, bitset, &i))
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{
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guint n_items = egg_bitset_get_size (bitset);
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do
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{
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g_autoptr(SysprofDocumentTraceable) traceable = g_list_model_get_item (model, i);
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int pid = sysprof_document_frame_get_pid (SYSPROF_DOCUMENT_FRAME (traceable));
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SysprofProcessInfo *process_info = g_hash_table_lookup (state->pid_to_process_info, GINT_TO_POINTER (pid));
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add_traceable (state->symbols,
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state->strings,
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process_info,
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traceable,
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state->symbolizer);
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count++;
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if (state->progress_func != NULL && count % 100 == 0)
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state->progress_func (count / (double)n_items, _("Symbolizing stack traces"), state->progress_data);
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}
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while (egg_bitset_iter_next (&iter, &i));
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}
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g_task_return_pointer (task,
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g_object_ref (state->symbols),
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g_object_unref);
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}
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void
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_sysprof_document_symbols_new (SysprofDocument *document,
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SysprofStrings *strings,
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SysprofSymbolizer *symbolizer,
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GHashTable *pid_to_process_info,
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ProgressFunc progress_func,
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gpointer progress_data,
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GDestroyNotify progress_data_destroy,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer user_data)
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{
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g_autoptr(GTask) task = NULL;
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Symbolize *state;
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g_return_if_fail (SYSPROF_IS_DOCUMENT (document));
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g_return_if_fail (SYSPROF_IS_SYMBOLIZER (symbolizer));
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state = g_new0 (Symbolize, 1);
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state->document = g_object_ref (document);
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state->symbolizer = g_object_ref (symbolizer);
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state->symbols = g_object_new (SYSPROF_TYPE_DOCUMENT_SYMBOLS, NULL);
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state->strings = sysprof_strings_ref (strings);
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state->pid_to_process_info = g_hash_table_ref (pid_to_process_info);
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state->progress_func = progress_func;
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state->progress_data = progress_data;
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state->progress_data_destroy = progress_data_destroy;
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task = g_task_new (NULL, cancellable, callback, user_data);
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g_task_set_source_tag (task, _sysprof_document_symbols_new);
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g_task_set_task_data (task, state, (GDestroyNotify)symbolize_free);
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g_task_run_in_thread (task, sysprof_document_symbols_worker);
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}
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SysprofDocumentSymbols *
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_sysprof_document_symbols_new_finish (GAsyncResult *result,
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GError **error)
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{
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g_return_val_if_fail (G_IS_TASK (result), NULL);
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g_return_val_if_fail (g_task_is_valid (result, NULL), NULL);
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g_return_val_if_fail (g_task_get_source_tag (G_TASK (result)) == _sysprof_document_symbols_new, NULL);
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return g_task_propagate_pointer (G_TASK (result), error);
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}
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/**
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* _sysprof_document_symbols_lookup:
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* @self: a #SysprofDocumentSymbols
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* @process_info: (nullable): the process info if necessary
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* @context: the #SysprofAddressContext for the address
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* @address: a #SysprofAddress to lookup the symbol for
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*
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* Locates the symbol that is found at @address within @context of @pid.
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*
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* Returns: (transfer none) (nullable): a #SysprofSymbol or %NULL
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*/
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SysprofSymbol *
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_sysprof_document_symbols_lookup (SysprofDocumentSymbols *self,
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const SysprofProcessInfo *process_info,
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SysprofAddressContext context,
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SysprofAddress address)
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{
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SysprofAddressContext new_context;
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g_return_val_if_fail (SYSPROF_IS_DOCUMENT_SYMBOLS (self), NULL);
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g_return_val_if_fail (context <= SYSPROF_ADDRESS_CONTEXT_GUEST_USER, NULL);
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if (context == SYSPROF_ADDRESS_CONTEXT_NONE)
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context = SYSPROF_ADDRESS_CONTEXT_USER;
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if (sysprof_address_is_context_switch (address, &new_context))
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return self->context_switches[context];
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if (context == SYSPROF_ADDRESS_CONTEXT_KERNEL)
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return sysprof_symbol_cache_lookup (self->kernel_symbols, address);
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if (process_info != NULL)
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return sysprof_symbol_cache_lookup (process_info->symbol_cache, address);
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return NULL;
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}
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