binutils-gdb

Commit Graph

Author	SHA1	Message	Date
Simon Marchi	69f9764846	Add comments to gdbarch_address_class_name_to_type_flags. gdb/ChangeLog 2014-01-17 Simon Marchi <simon.marchi@ericsson.com> * gdbarch.sh (gdbarch_address_class_name_to_type_flags): Add comments. * gdbarch.h: Regenerate.	13 years ago
Alan Modra	7225345dbb	Allow ld target customiser script to force on disk scripts. Mucking with EMULATION_LIBPATH has unwanted side effects. Allow nds32 emulparams scripts to disable compiled-in scripts naturally, by setting COMPILE_IN=no. * genscripts.sh (COMPILE_IN): Don't set if already set. * emulparams/nds32elf.sh: Don't clear EMULATION_LIBPATH, set COMPILE_IN=no. * emulparams/nds32elf16m.sh: Likewise. * emulparams/nds32elf_linux.sh: Likewise. * emultempl/aix.em: Test COMPILE_IN value is "yes". * emultempl/armcoff.em: Likewise. * emultempl/elf32.em: Likewise. * emultempl/generic.em: Likewise. * emultempl/gld960.em: Likewise. * emultempl/gld960c.em: Likewise. * emultempl/linux.em: Likewise. * emultempl/lnk960.em: Likewise. * emultempl/m68kcoff.em: Likewise. * emultempl/sunos.em: Likewise. * emultempl/ticoff.em: Likewise.	13 years ago
Doug Evans	40ed484e74	* dll.c (UNSPECIFIED_CORE_ADDR): New macro. (match_dll): Use it.	13 years ago
Alan Modra	e07e2682b4	daily update	13 years ago
Tom Tromey	98b1cfdcc8	rearrange struct value to save memory This patch rearranges struct value a tiny bit, moving the "regnum" field into a hole. This saves 8 bytes per value on a 64-bit machine, and 4 bytes per value on a 32 bit machine. I think it does not negatively affect readability or performance. Built and regtested on x86-64 Fedora 18. 2014-01-16 Tom Tromey <tromey@redhat.com> * value.c (struct value) <regnum>: Move earlier.	13 years ago
Tom Tromey	77a1944595	remove extended_remote_create_inferior_1 I noticed that extended_remote_create_inferior_1 is called from a single spot. This patch unifies the callee and caller. It's just a simple cleanup that made the coming refactoring simpler. 2014-01-16 Tom Tromey <tromey@redhat.com> * remote.c (extended_remote_create_inferior): Rename from extended_remote_create_inferior_1. Add "ops" argument. Remove old implementation.	13 years ago
Pedro Alves	62261490a3	Fix gdb.trace/mi-traceframe-changed.exp on s390. The test fails on s390 with: -trace-find frame-number 0^M &"PC not available\n"^M ^done,found="1",tracepoint="1",traceframe="0",frame={level="-1",addr="<unavailable>",func="??",args=[]}^M (gdb) ^M FAIL: gdb.trace/mi-traceframe-changed.exp: tfile: -trace-find frame-number 0 tfile knows to infer the PC from the tracepoint's address if the PC wasn't collected (tfile_fetch_registers) but, that only works on targets whose PC register is a raw register, and on s390, the PC register is a pseudo register. But even if GDB doesn't know how to infer the value of PC, saying the current frame is level -1 is a bug: ^done,found="1",tracepoint="1",traceframe="0",frame={level="-1",addr="<unavailable>",func="??",args=[]}^M ^^^^^^^^^ '-1' is the level of the sentinel frame, which should never be visible. This is caused by the s390's heuristic unwinder accepting the frame (the fallback heuristic unwinders _always_ accept the frame), but then the unwind->this_id method throws that "PC not available\n" error. IOW, the s390's heuristic unwinder was never adjusted to handle unavailable register values gracefully, which can happen with e.g., a trimmed core file too. This is just the minimal necessary for <unavailable> frames, which at least gets us: (gdb) tfind Found trace frame 0, tracepoint 1 #0 <unavailable> in ?? () That is, frame #0 instead of -1. We could get better info out of "info frame" (this patch makes us show "outermost"), but this change would still be necessary. gdb/ 2014-01-16 Pedro Alves <palves@redhat.com> * s390-linux-tdep.c (s390_frame_unwind_cache): Swallow NOT_AVAILABLE_ERROR errors while parsing the prologue or reading the backchain.	13 years ago
Doug Evans	4d65956b03	dwarf2read.c (open_and_init_dwp_file): Fix typo in comment.	13 years ago
Markus Metzger	52834460bc	record-btrace: add (reverse-)stepping support Provide to_resume and to_wait target methods for the btrace record target to allow reverse stepping and replay support. Replay is limited in the sense that only stepping and source correlation are supported. We do not record data and thus can not show variables. Non-stop mode is not working. Do not allow record-btrace in non-stop mode. 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * btrace.h (btrace_thread_flag): New. (struct btrace_thread_info) <flags>: New. * record-btrace.c (record_btrace_resume_thread) (record_btrace_find_thread_to_move, btrace_step_no_history) (btrace_step_stopped, record_btrace_start_replaying) (record_btrace_step_thread, record_btrace_decr_pc_after_break) (record_btrace_find_resume_thread): New. (record_btrace_resume, record_btrace_wait): Extend. (record_btrace_can_execute_reverse): New. (record_btrace_open): Fail in non-stop mode. (record_btrace_set_replay): Split into this, ... (record_btrace_stop_replaying): ... this, ... (record_btrace_clear_histories): ... and this. (init_record_btrace_ops): Init to_can_execute_reverse. * NEWS: Announce it. testsuite/ * gdb.btrace/delta.exp: Check reverse stepi. * gdb.btrace/tailcall.exp: Update. Add stepping tests. * gdb.btrace/finish.exp: New. * gdb.btrace/next.exp: New. * gdb.btrace/nexti.exp: New. * gdb.btrace/record_goto.c: Add comments. * gdb.btrace/step.exp: New. * gdb.btrace/stepi.exp: New. * gdb.btrace/multi-thread-step.c: New. * gdb.btrace/multi-thread-step.exp: New. * gdb.btrace/rn-dl-bind.c: New. * gdb.btrace/rn-dl-bind.exp: New. * gdb.btrace/data.c: New. * gdb.btrace/data.exp: New. * gdb.btrace/Makefile.in (EXECUTABLES): Add new. doc/ * gdb.texinfo: Document limited reverse/replay support for target record-btrace.	13 years ago
Markus Metzger	118e6252ca	target: allow decr_pc_after_break to be defined by the target Allow the target to define which value to use in decr_pc_after_break. It defaults to gdbarch_decr_pc_after_break (GDBARCH). 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * target.h (struct target_ops) <to_decr_pc_after_break>: New. (forward_target_decr_pc_after_break) (target_decr_pc_after_break): New. * target.c (forward_target_decr_pc_after_break) (target_decr_pc_after_break): New. * aix-thread.c (aix_thread_wait): Call target_decr_pc_after_break instead of gdbarch_decr_pc_after_break. * darwin-nat.c (cancel_breakpoint): Call target_decr_pc_after_break instead of gdbarch_decr_pc_after_break. * infrun.c (adjust_pc_after_break): Call target_decr_pc_after_break instead of gdbarch_decr_pc_after_break. * linux-nat.c (cancel_breakpoint): Call target_decr_pc_after_break instead of gdbarch_decr_pc_after_break. * linux-thread-db.c (check_event): Call target_decr_pc_after_break instead of gdbarch_decr_pc_after_break. * record-full.c (record_full_wait_1): Call target_decr_pc_after_break instead of gdbarch_decr_pc_after_break.	13 years ago
Markus Metzger	6e07b1d27e	record-btrace: show trace from enable location The btrace record target shows the branch trace from the location of the first branch destination. This is the first BTS records. After adding incremental updates, we can now add a dummy record for the current PC when we enable tracing so we show the trace from the location where branch tracing has been enabled. 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * btrace.c: Include regcache.h. (btrace_add_pc): New. (btrace_enable): Call btrace_add_pc. (btrace_is_empty): New. * btrace.h (btrace_is_empty): New. * record-btrace.c (require_btrace, record_btrace_info): Call btrace_is_empty. testsuite/ * gdb.btrace/Makefile.in (EXECUTABLES): Add delta. * gdb.btrace/exception.exp: Update. * gdb.btrace/instruction_history.exp: Update. * gdb.btrace/record_goto.exp: Update. * gdb.btrace/tailcall.exp: Update. * gdb.btrace/unknown_functions.exp: Update. * gdb.btrace/delta.exp: New.	13 years ago
Markus Metzger	969c39fbcd	btrace, gdbserver: read branch trace incrementally Read branch trace data incrementally and extend the current trace rather than discarding it and reading the entire trace buffer each time. If the branch trace buffer overflowed, we can't extend the current trace so we discard it and start anew by reading the entire branch trace buffer. 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * common/linux-btrace.c (perf_event_read_bts, linux_read_btrace): Support delta reads. (linux_disable_btrace): Change return type. * common/linux-btrace.h (linux_read_btrace): Change parameters and return type to allow error reporting. Update users. (linux_disable_btrace): Change return type. Update users. * common/btrace-common.h (btrace_read_type) <BTRACE_READ_DELTA>: New. (btrace_error): New. (btrace_block) <begin>: Comment on BEGIN == 0. * btrace.c (btrace_compute_ftrace): Start from the end of the current trace. (btrace_stitch_trace, btrace_clear_history): New. (btrace_fetch): Read delta trace, return if replaying. (btrace_clear): Move clear history code to btrace_clear_history. (parse_xml_btrace): Throw an error if parsing failed. * target.h (struct target_ops) <to_read_btrace>: Change parameters and return type to allow error reporting. (target_read_btrace): Change parameters and return type to allow error reporting. * target.c (target_read_btrace): Update. * remote.c (remote_read_btrace): Support delta reads. Pass errors on. * NEWS: Announce it. gdbserver/ * target.h (target_ops) <read_btrace>: Change parameters and return type to allow error reporting. * server.c (handle_qxfer_btrace): Support delta reads. Pass trace reading errors on. * linux-low.c (linux_low_read_btrace): Pass trace reading errors on. (linux_low_disable_btrace): New.	13 years ago
Markus Metzger	0b722aec57	record-btrace: extend unwinder Extend the always failing unwinder to provide the PC based on the call structure detected in the branch trace. The unwinder supports normal frames and tailcall frames. Inline frames are not supported. 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * record.h (record_btrace_frame_unwind) (record_btrace_tailcall_frame_unwind): New declarations. * dwarf2-frame: Include record.h (dwarf2_frame_cfa): Throw an error for btrace frames. * record-btrace.c: Include hashtab.h. (btrace_get_bfun_name): New. (btrace_call_history): Call btrace_get_bfun_name. (struct btrace_frame_cache): New. (bfcache): New. (bfcache_hash, bfcache_eq, bfcache_new): New. (btrace_get_frame_function): New. (record_btrace_frame_unwind_stop_reason): Allow unwinding. (record_btrace_frame_this_id): Compute own id. (record_btrace_frame_prev_register): Provide PC, throw_error for all other registers. (record_btrace_frame_sniffer): Detect btrace frames. (record_btrace_tailcall_frame_sniffer): New. (record_btrace_frame_dealloc_cache): New. (record_btrace_frame_unwind): Add new functions. (record_btrace_tailcall_frame_unwind): New. (_initialize_record_btrace): Allocate cache. * btrace.c (btrace_clear): Call reinit_frame_cache. * NEWS: Announce it. testsuite/ * gdb.btrace/record_goto.exp: Add backtrace test. * gdb.btrace/tailcall.exp: Add backtrace test.	14 years ago
Markus Metzger	066ce621f4	record-btrace: add record goto target methods 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * record-btrace.c (record_btrace_set_replay) (record_btrace_goto_begin, record_btrace_goto_end) (record_btrace_goto): New. (init_record_btrace_ops): Initialize them. * NEWS: Announce it. testsuite/ * gdb.btrace/Makefile.in (EXECUTABLES): Add record_goto. * gdb.btrace/record_goto.c: New. * gdb.btrace/record_goto.exp: New. * gdb.btrace/x86-record_goto.S: New.	14 years ago
Markus Metzger	e2887aa34f	record-btrace: provide target_find_new_threads method The "info threads" command tries to read memory, which is not possible during replay. This results in an error message and aborts the command without showing the existing threads. Provide a to_find_new_threads target method to skip the search while replaying. 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * record-btrace.c (record_btrace_find_new_threads) (record_btrace_thread_alive): New. (init_record_btrace_ops): Initialize to_find_new_threads and to_thread_alive.	13 years ago
Markus Metzger	b2f4cfdebc	record-btrace: add to_wait and to_resume target methods. Add simple to_wait and to_resume target methods that prevent stepping when the current replay position is not at the end of the execution log. 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * record-btrace.c (record_btrace_resume): New. (record_btrace_wait): New. (init_record_btrace_ops): Initialize to_wait and to_resume.	14 years ago
Markus Metzger	633785ff28	record-btrace: provide xfer_partial target method Provide the xfer_partial target method for the btrace record target. Only allow memory read accesses to readonly memory while we're replaying, except for inserting and removing breakpoints. 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * record-btrace.c (record_btrace_xfer_partial) (record_btrace_insert_breakpoint, record_btrace_remove_breakpoint) (record_btrace_allow_memory_access): New. (init_record_btrace_ops): Initialize new methods. * target.c (raw_memory_xfer_partial): Bail out if target reports that this memory is not available.	14 years ago
Markus Metzger	3db08215d4	target, breakpoint: allow insert/remove breakpoint to be forwarded 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * target.h (target_ops) <to_insert_breakpoint> <to_remove_breakpoint>: Add target_ops parameter. (forward_target_insert_breakpoint): New. (forward_target_remove_breakpoint): New. (memory_remove_breakpoint, memory_insert_breakpoint): Add target_ops parameter. * target.c (target_insert_breakpoint): Split into this and ... (forward_target_insert_breakpoint): ... this. (target_remove_breakpoint): Split into this and ... (forward_target_remove_breakpoint): ... this. (debug_to_insert_breakpoint): Add target_ops parameter. Call forward_target_insert_breakpoint. (debug_to_remove_breakpoint): Add target_ops parameter. Call forward_target_remove_breakpoint. (update_current_target): Do not inherit or default to_insert_breakpoint and to_remove_breakpoint. * corelow.c (ignore): Add target_ops parameter. * exec.c (ignore): Add target_ops parameter. * mem-break.c (memory_insert_breakpoint, memory_remove_breakpoint): Add target_ops parameter. * monitor.c (monitor_insert_breakpoint, monitor_remove_breakpoint): Add target_ops parameter. * nto-procfs.c (procfs_insert_breakpoint, procfs_remove_breakpoint): Add target_ops parameter. * record-full.c (record_full_beneath_to_insert_breakpoint) (record_full_beneath_to_remove_breakpoint, tmp_to_insert_breakpoint) (tmp_to_remove_breakpoint, record_full_insert_breakpoint) (record_full_remove_breakpoint, record_full_core_insert_breakpoint) (record_full_core_remove_breakpoint): Add target_ops parameter. Update users. (record_full_beneath_to_insert_breakpoint_ops) (record_full_beneath_to_remove_breakpoint_ops) (tmp_to_insert_breakpoint_ops, tmp_to_remove_breakpoint_ops): New. (record_full_open): Initialize tmp_to_insert_breakpoint_ops, tmp_to_remove_breakpoint_ops, record_full_beneath_to_insert_breakpoint_ops, and record_full_beneath_to_remove_breakpoint_ops. * remote-m32r-sdi.c (m32r_insert_breakpoint) (m32r_remove_breakpoint): Add target_ops parameter. * remote-mips.c (mips_insert_breakpoint, mips_remove_breakpoint): Add target_ops parameter. * remote.c (remote_insert_breakpoint, remote_remove_breakpoint): Add target_ops parameter.	13 years ago
Markus Metzger	cecac1aba0	record-btrace, frame: supply target-specific unwinder Supply a target-specific frame unwinder for the record-btrace target that does not allow unwinding while replaying. 2013-02-11 Jan Kratochvil <jan.kratochvil@redhat.com> Markus Metzger <markus.t.metzger@intel.com> gdb/ * record-btrace.c: Include frame-unwind.h. (record_btrace_frame_unwind_stop_reason) (record_btrace_frame_this_id, record_btrace_frame_prev_register) (record_btrace_frame_sniffer, record_btrace_frame_unwind): New. (init_record_btrace_ops): Install it.	14 years ago
Markus Metzger	824344ca4f	frame: do not assume unwinding will succeed In get_frame_unwind_stop_reason, remove the assumption that further frame unwinding will succeed. gdb/ 2013-02-11 Jan Kratochvil <jan.kratochvil@redhat.com> * frame.c (get_frame_unwind_stop_reason): Unconditionally call get_prev_frame_1.	14 years ago
Markus Metzger	32261e5234	frame, cfa: check unwind stop reason first Swap the unwind stop reason check and the unwinder check to allow non-dwarf2 frame types to fail with a recoverable error. gdb/ 2013-02-11 Jan Kratochvil <jan.kratochvil@redhat.com> * dwarf2-frame.c (dwarf2_frame_cfa): Move UNWIND_UNAVAILABLE check earlier.	14 years ago
Markus Metzger	ea001bdce2	frame, backtrace: allow targets to supply a frame unwinder Allow targets to supply their own target-specific frame unwinders; one for normal frames and one for tailcall frames. If a target-specific unwinder is supplied, it will be chosen before any other unwinder. The original patch has been split into this and the next two patches. gdb/ 2013-02-11 Jan Kratochvil <jan.kratochvil@redhat.com> * frame-unwind.c: Include target.h. (frame_unwind_try_unwinder): New function with code from ... (frame_unwind_find_by_frame): ... here. New variable unwinder_from_target, call also target_get_unwinder) (target_get_tailcall_unwinder, and frame_unwind_try_unwinder for it. * target.c (target_get_unwinder, target_get_tailcall_unwinder): New. * target.h (struct target_ops): New fields to_get_unwinder and to_get_tailcall_unwinder. (target_get_unwinder, target_get_tailcall_unwinder): New declarations.	14 years ago
Markus Metzger	1f3ef5810c	record-btrace: supply register target methods Supply target methods to allow reading the PC. Forbid anything else. 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * record-btrace.c (record_btrace_fetch_registers) (record_btrace_store_registers) (record_btrace_to_prepare_to_store): New. (init_record_btrace_ops): Add the above.	14 years ago
Markus Metzger	f32dbf8c79	Add target_ops argument to to_prepare_to_store 2013-12-17 Tom Tromey <tromey@redhat.com> * windows-nat.c (windows_prepare_to_store): Add 'self' argument. * target.h (struct target_ops) <to_prepare_to_store>: Add argument. (target_prepare_to_store): Add argument. * target.c (debug_to_prepare_to_store): Add argument. (update_current_target): Update. * remote.c (remote_prepare_to_store): Add 'self' argument. * remote-sim.c (gdbsim_prepare_to_store): Add 'self' argument. * remote-mips.c (mips_prepare_to_store): Add 'self' argument. * remote-m32r-sdi.c (m32r_prepare_to_store): Add 'self' argument. * record-full.c (record_full_core_prepare_to_store): Add 'self' argument. * ravenscar-thread.c (ravenscar_prepare_to_store): Add argument. * nto-procfs.c (procfs_prepare_to_store): Add 'self' argument. * monitor.c (monitor_prepare_to_store): Add 'self' argument. * inf-child.c (inf_child_prepare_to_store): Add 'self' argument. * go32-nat.c (go32_prepare_to_store): Add 'self' argument.	13 years ago
Markus Metzger	07bbe694e7	btrace: add replay position to btrace thread info Add a branch trace instruction iterator pointing to the current replay position to the branch trace thread info struct. Free the iterator when btrace is cleared. Start at the replay position for the instruction and function-call histories. 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * btrace.h (replay) <replay>: New. (btrace_is_replaying): New. * btrace.c (btrace_clear): Free replay iterator. (btrace_is_replaying): New. * record-btrace.c (record_btrace_is_replaying): New. (record_btrace_info): Print insn number if replaying. (record_btrace_insn_history): Start at replay position. (record_btrace_call_history): Start at replay position. (init_record_btrace_ops): Init to_record_is_replaying.	14 years ago
Markus Metzger	0688d04e19	record-btrace: make ranges include begin and end The "record function-call-history" and "record instruction-history" commands accept a range "begin, end". End is not included in both cases. Include it. 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * record-btrace.c (record_btrace_insn_history_range): Include end. (record_btrace_insn_history_from): Adjust range. (record_btrace_call_history_range): Include end. (record_btrace_call_history_from): Adjust range. * NEWS: Announce changes. testsuite/ * gdb.btrace/function_call_history.exp: Update tests. * gdb.btrace/instruction_history.exp: Update tests. doc/ * gdb.texinfo (Process Record and Replay): Update documentation.	14 years ago
Markus Metzger	8710b7097e	record-btrace: optionally indent function call history Add a new modifier /c to the "record function-call-history" command to indent the function name based on its depth in the call stack. Also reorder the optional fields to have the indentation at the very beginning. Prefix the insn range (/i modifier) with "inst ". Prefix the source line (/l modifier) with "at ". Change the range syntax from "begin-end" to "begin,end" to allow copy&paste to the "record instruction-history" and "list" commands. Adjust the respective tests and add new tests for the /c modifier. 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * record.h (enum record_print_flag) <record_print_indent_calls>: New. * record.c (get_call_history_modifiers): Recognize /c modifier. (_initialize_record): Document /c modifier. * record-btrace.c (btrace_call_history): Add btinfo parameter. Reorder fields. Optionally indent the function name. Update all users. * NEWS: Announce changes. testsuite/ * gdb.btrace/function_call_history.exp: Fix expected field order for "record function-call-history". Add new tests for "record function-call-history /c". * gdb.btrace/exception.cc: New. * gdb.btrace/exception.exp: New. * gdb.btrace/tailcall.exp: New. * gdb.btrace/x86-tailcall.S: New. * gdb.btrace/x86-tailcall.c: New. * gdb.btrace/unknown_functions.c: New. * gdb.btrace/unknown_functions.exp: New. * gdb.btrace/Makefile.in (EXECUTABLES): Add new. doc/ * gdb.texinfo (Process Record and Replay): Document new /c modifier accepted by "record function-call-history". Add /i modifier to "record function-call-history" example.	14 years ago
Markus Metzger	d0fa75352b	btrace: increase buffer size Try to allocate as much buffer as we can for each thread with a maximum of 64KB. 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * common/linux-btrace.c (linux_enable_btrace): Enlarge buffer.	14 years ago
Markus Metzger	5de9129b06	record-btrace: start counting at one The record instruction-history and record-function-call-history commands start counting instructions at zero. This is somewhat unintuitive when we start navigating in the recorded instruction history. Start at one, instead. 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * btrace.c (ftrace_new_function): Start counting at one. * record-btrace.c (record_btrace_info): Adjust number of calls and insns. * NEWS: Announce it. testsuite/ * gdb.btrace/instruction_history.exp: Update. * gdb.btrace/function_call_history.exp: Update.	13 years ago
Markus Metzger	7acbe13307	record-btrace: fix insn range in function call history With the "/i" modifier, we print the instruction number range in the "record function-call-history" command as [begin, end). It would be more intuitive if we printed the range as [begin, end]. 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * record-btrace.c (btrace_call_history_insn_range): Print insn range as [begin, end].	14 years ago
Markus Metzger	23a7fe7580	btrace: change branch trace data structure The branch trace is represented as 3 vectors: - a block vector - a instruction vector - a function vector Each vector (except for the first) is computed from the one above. Change this into a graph where a node represents a sequence of instructions belonging to the same function and where we have three types of edges to connect the function segments: - control flow - same function (instance) - call stack This allows us to navigate in the branch trace. We will need this for "record goto" and reverse execution. This patch introduces the data structure and computes the control flow edges. It also introduces iterator structs to simplify iterating over the branch trace in control-flow order. It also fixes PR gdb/15240 since now recursive calls are handled correctly. Fix the test that got the number of expected fib instances and also the function numbers wrong. The current instruction had been part of the branch trace. This will look odd once we start support for reverse execution. Remove it. We still keep it in the trace itself to allow extending the branch trace more easily in the future. 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * btrace.h (struct btrace_func_link): New. (enum btrace_function_flag): New. (struct btrace_inst): Rename to ... (struct btrace_insn): ...this. Update all users. (struct btrace_func) <ibegin, iend>: Remove. (struct btrace_func_link): New. (struct btrace_func): Rename to ... (struct btrace_function): ...this. Update all users. (struct btrace_function) <segment, flow, up, insn, insn_offset) (number, level, flags>: New. (struct btrace_insn_iterator): Rename to ... (struct btrace_insn_history): ...this. Update all users. (struct btrace_insn_iterator, btrace_call_iterator): New. (struct btrace_target_info) <btrace, itrace, ftrace>: Remove. (struct btrace_target_info) <begin, end, level> <insn_history, call_history>: New. (btrace_insn_get, btrace_insn_number, btrace_insn_begin) (btrace_insn_end, btrace_insn_prev, btrace_insn_next) (btrace_insn_cmp, btrace_find_insn_by_number, btrace_call_get) (btrace_call_number, btrace_call_begin, btrace_call_end) (btrace_call_prev, btrace_call_next, btrace_call_cmp) (btrace_find_function_by_number, btrace_set_insn_history) (btrace_set_call_history): New. * btrace.c (btrace_init_insn_iterator) (btrace_init_func_iterator, compute_itrace): Remove. (ftrace_print_function_name, ftrace_print_filename) (ftrace_skip_file): Change parameter to const. (ftrace_init_func): Remove. (ftrace_debug): Use new btrace_function fields. (ftrace_function_switched): Also consider gaining and losing symbol information). (ftrace_print_insn_addr, ftrace_new_call, ftrace_new_return) (ftrace_new_switch, ftrace_find_caller, ftrace_new_function) (ftrace_update_caller, ftrace_fixup_caller, ftrace_new_tailcall): New. (ftrace_new_function): Move. Remove debug print. (ftrace_update_lines, ftrace_update_insns): New. (ftrace_update_function): Check for call, ret, and jump. (compute_ftrace): Renamed to ... (btrace_compute_ftrace): ...this. Rewritten to compute call stack. (btrace_fetch, btrace_clear): Updated. (btrace_insn_get, btrace_insn_number, btrace_insn_begin) (btrace_insn_end, btrace_insn_prev, btrace_insn_next) (btrace_insn_cmp, btrace_find_insn_by_number, btrace_call_get) (btrace_call_number, btrace_call_begin, btrace_call_end) (btrace_call_prev, btrace_call_next, btrace_call_cmp) (btrace_find_function_by_number, btrace_set_insn_history) (btrace_set_call_history): New. * record-btrace.c (require_btrace): Use new btrace thread info fields. (record_btrace_info, btrace_insn_history) (record_btrace_insn_history, record_btrace_insn_history_range): Use new btrace thread info fields and new iterator. (btrace_func_history_src_line): Rename to ... (btrace_call_history_src_line): ...this. Use new btrace thread info fields. (btrace_func_history): Rename to ... (btrace_call_history): ...this. Use new btrace thread info fields and new iterator. (record_btrace_call_history, record_btrace_call_history_range): Use new btrace thread info fields and new iterator. testsuite/ * gdb.btrace/function_call_history.exp: Fix expected function trace. * gdb.btrace/instruction_history.exp: Initialize traced. Remove traced_functions.	14 years ago
Markus Metzger	8372a7cb96	frame: add frame_id_build_unavailable_stack_special Add a function to build a frame_id for a frame with unavailable stack and with a special identifier address. 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * frame.h (frame_id_build_unavailable_stack_special): New. * frame.c (frame_id_build_unavailable_stack_special): New.	13 years ago
Markus Metzger	c2170eeffa	gdbarch: add instruction predicate methods Add new methods to gdbarch for analyzing the instruction at a given address. Implement those methods for i386 and amd64 architectures. This is needed by "record btrace" to detect function calls in the execution trace. 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * amd64-tdep.c (amd64_classify_insn_at, amd64_insn_is_call) (amd64_insn_is_ret, amd64_insn_is_jump, amd64_jmp_p): New. (amd64_init_abi): Add insn_is_call, insn_is_ret, and insn_is_jump to gdbarch. * i386-tdep.c (i386_insn_is_call, i386_insn_is_ret) (i386_insn_is_jump, i386_jmp_p): New. (i386_gdbarch_init): Add insn_is_call, insn_is_ret, and insn_is_jump to gdbarch. * gdbarch.sh (insn_is_call, insn_is_ret, insn_is_jump): New. * gdbarch.h: Regenerated. * gdbarch.c: Regenerated. * arch-utils.h (default_insn_is_call, default_insn_is_ret) (default_insn_is_jump): New. * arch-utils.c (default_insn_is_call, default_insn_is_ret) (default_insn_is_jump): New.	14 years ago
Markus Metzger	864089d2f6	btrace: uppercase btrace_read_type 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * common/btrace-common.h (btrace_read_type) <btrace_read_all>: Change to ... (btrace_read_type) <BTRACE_READ_ALL>: ... this. Update users. (btrace_read_type) <btrace_read_new>: Change to ... (btrace_read_type) <BTRACE_READ_NEW>: ... this. Update users.	13 years ago
Markus Metzger	ed9edfb5d5	btrace, linux: fix memory leak when reading branch trace When it takes more than one iteration to read the BTS trace, the trace from the previous iteration is leaked. Fix it. 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * common/linux-btrace.c (linux_read_btrace): Free trace from previous iteration.	13 years ago
Markus Metzger	724c7dd8a4	btrace, test: fix multi-line btrace tests For testing multi-line test output, gdb.btrace tests used the following pattern: gdb_test "..." " ...\r ..." Change this to: gdb_test "..." [join [list \ "..." \ "..."] "\r\n"] Also extract repeated tests into a test function and shorten or remove test messages. 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> testsuite/ * gdb.btrace/function_call_history.exp: Update * gdb.btrace/instruction_history.exp: Update.	13 years ago
Markus Metzger	6d78d93b8d	test, btrace: update expected text The error message for starting recording twice changed. Update the expected text to fix resulting regressions. 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * gdb.btrace/enable.exp: Update expected text.	13 years ago
Omair Javaid	93a360cc5d	Fix testsuite/gdb.dwarf2/dw2-dos-drive.exp on ARM. This test currently fails on ARM: (gdb) PASS: gdb.dwarf2/dw2-dos-drive.exp: set breakpoint pending off break 'z:file.c':func Cannot access memory at address 0x0 The error is GDB trying to read the prologue at the breakpoint's address, and failing: 38 throw_error() exceptions.c:444 0x0016728c 37 memory_error() corefile.c:204 0x001d1fcc 36 read_memory() corefile.c:223 0x001d201a 35 read_memory_unsigned_integer() corefile.c:312 0x001d2166 34 arm_skip_prologue() arm-tdep.c:1452 0x00054270 static CORE_ADDR arm_skip_prologue (struct gdbarch gdbarch, CORE_ADDR pc) { ... for (skip_pc = pc; skip_pc < limit_pc; skip_pc += 4) { inst = read_memory_unsigned_integer (skip_pc, 4, byte_order_for_code); The test doesn't execute the compiled object's code, so GDB will try to read memory from the binary's sections. Instructions on ARM are 4-byte wide, and thus ARM's prologue scanner reads in 4-byte chunks. As the section 'func' is put at is only 1 byte long, and no other section is allocated contiguously: ... Sections: Idx Name Size VMA LMA File off Algn 0 .text 00000001 00000000 00000000 00000034 20 CONTENTS, ALLOC, LOAD, READONLY, CODE ... ... the exec target fails the read the 4 bytes. Fix this by increasing the function's size. gdb/testsuite/ChangeLog: 2014-01-16 Omair Javaid <Omair.Javaid@linaro.org> gdb.dwarf2/dw2-dos-drive.S: Increase text section size to 4 bytes.	13 years ago
H.J. Lu	f6f6c6790a	Skip directories with LIBPATH_SUFFIX_SKIP suffix On Linux/x86-64, when binutils is configured with --libdir=/usr/lib64, genscripts.sh treats /usr/lib64 as the default search directory. It puts /usr/lib64 in linker scripts for all emulations, like --- /* Script for -z combreloc: combine and sort reloc sections / OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386") OUTPUT_ARCH(i386) ENTRY(_start) SEARCH_DIR("/usr/x86_64-redhat-linux/lib32"); SEARCH_DIR("/usr/i386-redhat-linux/lib32"); SEARCH_DIR("/usr/lib6432"); SEARCH_DIR("/usr/local/lib32"); SEARCH_DIR("/lib32"); SEARCH_DIR("/usr/lib32"); SEARCH_DIR("/usr/i386-redhat-linux/lib"); SEARCH_DIR("/usr/lib64"); SEARCH_DIR("/usr/local/lib"); SEARCH_DIR("/lib"); SEARCH_DIR("/usr/lib"); --- /usr/lib6432 is odd and /usr/lib64 is wrong. This patch changes genscripts.sh to check LIBPATH_SUFFIX_SKIP if it is defined. It skips directories with LIBPATH_SUFFIX_SKIP suffix. PR ld/16456 genscripts.sh: Don't search directory with LIBPATH_SUFFIX_SKIP suffix. * emulparams/elf32_x86_64.sh (LIBPATH_SUFFIX_SKIP): Set to 64 for elf32_x86_64 emulation. * emulparams/elf_i386.sh (LIBPATH_SUFFIX_SKIP): Set to 64 for elf_i386 emulation.	13 years ago
Alan Modra	6fcc66ab70	Tidy ld use of bfd_section userdata. A long time ago ld made use of userdata to tie an output section to its lang_input_statement_struct object file. Some time later Joern made map file printing of symbols at lot faster, using userdata on input sections. That complicated allocation of userdata, and when the output section use disappeared a year later, the code wasn't properly cleaned up. This patch does that cleanup, and also tidies the symbol printing code to not allocate userdata where it won't be needed. We don't print symbols defined in the absolute section or in output sections. * ld.h (fat_section_userdata_type, get_userdata): Move to.. * ldlang.h (input_section_userdata_type, get_userdata): ..here. * ldlang.c (init_map_userdata): Delete. Fold into.. (sort_def_symbol): ..here. Don't attach input section userdata to output sections or global bfd sections. (lang_map): Don't pre-allocate input section userdata. (init_os): Don't allocate userdata for output sections. (print_all_symbols): Update.	13 years ago
Alan Modra	b75d42bce5	Fix mips segfault on GOT access of absolute symbol When a symbol is absolute, this code in mips_elf_record_got_page_entry entry = bfd_zalloc (sec->owner, sizeof (entry)); segfaults. sec == bfd_abs_section_ptr and sec->owner == NULL. elfxx-mips.c (mips_elf_record_got_page_entry): Pass in a mips_elf_traverse_got_arg* rather than mips_got_info*. Adjust caller. Alloc on output_bfd rather than symbol section owner.	13 years ago
Doug Evans	ab7f45ba10	delete thread_id_to_gdb_id, unused * inferiors.c (thread_id_to_gdb_id): Delete. * inferiors.h (thread_id_to_gdb_id): Delete.	13 years ago
Alan Modra	5ae8deca2a	daily update	13 years ago
Maciej W. Rozycki	3772b53f14	AArch64: gdb.base/float.exp: Fix `info float' test * gdb.base/float.exp: Handle "aarch64--*" targets.	13 years ago
Doug Evans	fbcbc3fda4	* dwarf2read.c (open_and_init_dwp_file): Use pulongest to print uint32_t.	13 years ago
Tom Tromey	3d548a532d	move the "main" data into the per-BFD object This adds the "main"-related data into the per-BFD. This is needed because once symbol sharing across objfiles is complete, computing the main name as a side effect of symbol reading will no longer work -- the symbols simply won't be re-read. After this change, set_main_name is only used by the main_name machinery itself, so this patch makes it static. 2014-01-15 Tom Tromey <tromey@redhat.com> * dbxread.c (process_one_symbol): Use set_objfile_main_name. * dwarf2read.c (read_partial_die): Use set_objfile_main_name. * objfiles.c (get_objfile_bfd_data): Initialize language_of_main. (set_objfile_main_name): New function. * objfiles.h (struct objfile_per_bfd_storage) <name_of_main, language_of_main>: New fields. (set_objfile_main_name): Declare. * symtab.c (find_main_name): Loop over objfiles to find the main name and language. (set_main_name): Now static. (get_main_info): Add comment. * symtab.h (set_main_name): Don't declare.	13 years ago
Tom Tromey	32ac0d11e6	move main name into the progspace This moves the "main" name and language into an object attached to the current progspace. This prevents problems if there are multiple inferiors tha have different ideas of "main" -- which matters at least for unwinding, see frame.c:inside_main_func. 2014-01-15 Tom Tromey <tromey@redhat.com> * symtab.c (main_progspace_key): New global. (struct main_info): New. (name_of_main, language_of_main): Remove. (get_main_info, main_info_cleanup): New function. (set_main_name, main_name, main_language): Use get_main_info. (_initialize_symtab): Initialize main_progspace_key.	13 years ago
Tom Tromey	9e6c82ad4f	make language_of_main static This makes the global language_of_main static. Now it can be set only via a new argument to set_main_name. 2014-01-15 Tom Tromey <tromey@redhat.com> * dbxread.c (process_one_symbol): Update. * dwarf2read.c (read_partial_die): Update. * symfile.c (set_initial_language): Call main_language. * symtab.c (language_of_main): Now static. (set_main_name): Add 'lang' parameter. (find_main_name): Update. (main_language): New function. (symtab_observer_executable_changed): Update. * symtab.h (set_main_name): Update. (language_of_main): Remove. (main_language): Declare.	13 years ago
Tom Tromey	6ef55de768	move the entry point info into the per-bfd object This moves the entry point information into the per-BFD object and arranges not to recompute it when it has already been computed. 2014-01-15 Tom Tromey <tromey@redhat.com> * symfile.c (init_entry_point_info): Use new "initialized" field. Update. * objfiles.h (struct entry_point) <initialized>: New field. (struct objfile_per_bfd_storage) <ei>: New field, moved from... (struct objfile) <ei>: ...here. Remove. * objfiles.c (entry_point_address_query): Update.	13 years ago
Tom Tromey	53eddfa606	relocate the entry point address when used This changes the entry point to be unrelocated in the objfile, and instead applies the relocation when it is used. 2014-01-15 Tom Tromey <tromey@redhat.com> * objfiles.c (entry_point_address_query): Relocate entry point address. (objfile_relocate1): Do not relocate entry point address. * objfiles.h (struct entry_info) <entry_point>: Update comment. <the_bfd_section_index>: New field. * symfile.c (init_entry_point_info): Find the entry point's section.	13 years ago

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