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Originally, this function had a parameter called `warn_if_null'
which would trigger a message to be printed on stdout if the
program was found to not use Ada tasking. It used one of the printf_
functions for that, which is wrong when considering the context of
GDB/MI interpreters.
So, this patch changes this function to stop printing the message,
and leaves that part to the callers instead. It also changes the
semantics slightly to return the number of tasks found, rather than
a yes/no answer. Not strictly needed, but simple enough to do, and
potentially useful later.
gdb/ChangeLog:
* ada-lang.h (ada_build_task_list): Remove parameter
`warn_if_null'.
* ada-tasks.c (ada_build_task_list): Remove parameter
`warn_if_null'. Adjust implementation and documentation.
(valid_task_id, ada_get_environment_task)
iterate_over_live_ada_tasks): Adjust call to ada_build_task_list.
(info_tasks_command): Adjust implementation.
(task_command): Likewise.
* ravenscar-thread.c (ravenscar_find_new_threads): Fix call
to ada_build_task_list.
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The mapping between Ada tasks, and the underlying threads is
normally maintained by the GNAT runtime under the known_tasks
array. For performance reasons, this array is just a static
array with 10_000 entries in it. However, this is not very
practical in certain environments where memory is limited.
For those environments, the runtime has been enhanced to use
an alternate scheme with a linked list.
This change enhances the Ada tasking support to recognize this
situation and use the correct way of reading the tasks info
based on the the situation.
gdb/ChangeLog (Tristan Gingold)
* ada-tasks.c (KNOWN_TASKS_LIST): New macro.
(tcb_fieldno): Add activation_link field.
(get_known_tasks_addr): Moved and rewritten.
(get_tcb_types_info): Set activation_link field.
(read_known_tasks_array): Add parameter. Rewritten.
(read_known_tasks_list): New function.
(read_known_tasks): New function.
(ada_build_task_list): Call read_known_tasks instead of
read_known_tasks_array.
* ravenscar-thread.c: Add first_task_name constant.
(has_ravenscar_runtime): Check for task list too.
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* nto-procfs.c: Comment cleanup, mostly periods and spaces.
* nto-tdep.c: Ditto.
* nto-tdep.h: Ditto.
* objc-exp.y: Ditto.
* objc-lang.c: Ditto.
* objfiles.c: Ditto.
* objfiles.h: Ditto.
* observer.c: Ditto.
* opencl-lang.c: Ditto.
* osabi.c: Ditto.
* parse.c: Ditto.
* parser-defs.h: Ditto.
* p-exp.y: Ditto.
* p-lang.c: Ditto.
* posix-hdep.c: Ditto.
* ppcbug-rom.c: Ditto.
* ppc-linux-nat.c: Ditto.
* ppc-linux-tdep.c: Ditto.
* ppc-linux-tdep.h: Ditto.
* ppcnbsd-tdep.c: Ditto.
* ppcobsd-tdep.c: Ditto.
* ppcobsd-tdep.h: Ditto.
* ppc-sysv-tdep.c: Ditto.
* ppc-tdep.h: Ditto.
* printcmd.c: Ditto.
* proc-abi.c: Ditto.
* proc-flags.c: Ditto.
* procfs.c: Ditto.
* proc-utils.h: Ditto.
* progspace.h: Ditto.
* prologue-value.c: Ditto.
* prologue-value.h: Ditto.
* psympriv.h: Ditto.
* psymtab.c: Ditto.
* p-typeprint.c: Ditto.
* p-valprint.c: Ditto.
* ravenscar-sparc-thread.c: Ditto.
* ravenscar-thread.c: Ditto.
* ravenscar-thread.h: Ditto.
* record.c: Ditto.
* regcache.c: Ditto.
* regcache.h: Ditto.
* remote.c: Ditto.
* remote-fileio.c: Ditto.
* remote-fileio.h: Ditto.
* remote.h: Ditto.
* remote-m32r-sdi.c: Ditto.
* remote-mips.c: Ditto.
* remote-sim.c: Ditto.
* rs6000-aix-tdep.c: Ditto.
* rs6000-nat.c: Ditto.
* rs6000-tdep.c: Ditto.
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gdb/ChangeLog:
* ravenscar-thread.c (_initialize_ravenscar): Fix copy/paste typo
in name of "show ravenscar" prefix command name.
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A new-line was missing at the end of the output of the `show ravenscar
task-switching' command. For instance:
(gdb) show ravenscar task-switching
Support for Ravenscar task/thread switching is enabled(gdb)
This patch fixes it.
gdb/ChangeLog:
* ravenscar-thread.c (show_ravenscar_task_switching_command):
Add missing '\n' in output.
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The GNAT Ravenscar implementation has recently been enhanced to allow
programs using that runtime to run on multi-cpu systems. One of the
changes that were made is that the name of the symbol we use to
determine which task is the currently-running task has changed.
This patch enhances the debugger to use the new name, and fallback on
the old name if not found (this is for compatibility with older versions
of the compiler/runtime).
gdb/ChangeLog:
* ravenscar-thread.c (running_thread_name): Change value.
(read_thread_id): Remove advance declaration.
(get_running_thread_msymbol): New function.
(has_ravenscar_runtime): Use get_running_thread_msymbol to
compute msym_running_thread.
(get_running_thread_id): Renames read_thread_id. Slight modifications
to not take any argument anymore, using get_running_thread_msymbol
to determine which symbol to use instead.
(ravenscar_running_thread): Use get_running_thread_id instead of
read_thread_id.
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gdb/ChangeLog (Jerome Guitton, Joel Brobecker):
* ravenscar-thread.c, ravenscar-thread.h, ravenscar-sparc-thread.c:
New files.
* configure.tgt (sparc-*-*): Add ravenscar-thread.o and
ravenscar-sparc-thread.o to gdb_target_obs.
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