From 9edcc12f9b714149f84bcf20dbdad91f030e62de Mon Sep 17 00:00:00 2001 From: Joel Brobecker Date: Tue, 21 Nov 2017 14:00:30 -0800 Subject: Add multiple-CPU support in ravenscar-thread.c This patch reworks the ravenscar-thread layer to remove the assumption that the target only has 1 CPU. In particular, when connected to a QEMU target over the remote protocol, QEMU reports each CPU as one thread. This patch adapts the ravenscar-thread layer to this, and adds a large comment explaining the general design of this unit. gdb/ChangeLog: * ada-lang.h (ada_get_task_info_from_ptid): Add declaration. * ada-tasks.c (ada_get_task_info_from_ptid): New function. * ravenscar-thread.c: Add into comment. (base_magic_null_ptid): Delete. (base_ptid): Change documentation. (ravenscar_active_task): Renames ravenscar_running_thread. All callers updated throughout. (is_ravenscar_task, ravenscar_get_thread_base_cpu): New function. (ravenscar_task_is_currently_active): Likewise. (get_base_thread_from_ravenscar_task): Ditto. (ravenscar_update_inferior_ptid): Adjust to handle multiple CPUs. (ravenscar_runtime_initialized): Likewise. (get_running_thread_id): Add new parameter "cpu". Adjust implementation to handle this new parameter. (ravenscar_fetch_registers): Small adjustment to use is_ravenscar_task and ravenscar_task_is_currently_active in order to decide whether to use the target beneath or this module's arch_ops. (ravenscar_store_registers, ravenscar_prepare_to_store): Likewise. (ravenscar_stopped_by_sw_breakpoint): Use get_base_thread_from_ravenscar_task to get the underlying thread, rather than using base_ptid. (ravenscar_stopped_by_hw_breakpoint, ravenscar_stopped_by_watchpoint) (ravenscar_stopped_data_address, ravenscar_core_of_thread): Likewise. (ravenscar_inferior_created): Do not set base_magic_null_ptid. --- gdb/ada-lang.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'gdb/ada-lang.h') diff --git a/gdb/ada-lang.h b/gdb/ada-lang.h index c11fb48..36a5820 100644 --- a/gdb/ada-lang.h +++ b/gdb/ada-lang.h @@ -401,6 +401,8 @@ extern std::vector ada_exceptions_list (const char *regexp); extern int valid_task_id (int); +extern struct ada_task_info *ada_get_task_info_from_ptid (ptid_t ptid); + extern int ada_get_task_number (ptid_t); typedef void (ada_task_list_iterator_ftype) (struct ada_task_info *task); -- cgit v1.1