Improve the ordering of line table entries when dealing with the end
of sequence markers. This will allow us to disassemble over the border
between two compile units while also displaying source code information.
arguments. Skip in-prologue calls to glibc __aeabi_read_tp
implementation even if no symbols are available.
(thumb_analyze_prologue): Update call to skip_prologue_function.
(arm_analyze_prologue): Likewise.
(arm_prologue_this_id): Use frame PC if get_frame_func returns 0.
(arm_exidx_data_key): New static variable.
(struct arm_exidx_entry, arm_exidx_entry_s): New data types.
(struct arm_exidx_data): Likewise.
(arm_exidx_data_free): New function.
(arm_compare_exidx_entries): Likewise.
(arm_obj_section_from_vma): Likewise.
(arm_exidx_new_objfile): Likewise.
(arm_find_exidx_entry): Likewise.
(arm_exidx_fill_cache): Likewise.
(arm_exidx_unwind_sniffer): Likewise.
(arm_exidx_unwind): New global variable.
(arm_gdbarch_init): Append unwinder arm_exidx_unwind.
(_initialize_arm_tdep): Attach arm_exidx_new_objfile to new_objfile
observer. Register arm_exidx_data_key as objfile data.
* c-valprint.c (c_value_print): When doing virtual base pointer
adjustment, create a new value with adjusted contents rather than
changing the contents of the value being printed (and getting it
wrong).
gdb/testsuite/
* gdb.cp/virtbase.cc (VirtualBase, VirtualMiddleA, VirtualMiddleB)
(Virtual): New structs.
(virtual_o, virtual_middle_b): New globals.
* gdb.cp/virtbase.exp: New tests.
Non-GNU sed do not like the '?' quantifier when used in a s/// regexp
that involve back-references, causing the build to fail when trying
to link with Python support. This fixes it by using the '*' quantifier
instead.
gdb/ChangeLog:
* configure.ac: Work around non-GNU sed limitation when computing
python version number.
* configure: Regenerate.
Fix debug printing of BINOP_IN, OP_OBJC_MSGCALL,
OP_F77_UNDETERMINED_ARGLIST, OP_COMPLEX, OP_OBJC_SELECTOR, OP_NAME,
OP_OBJC_NSSTRING, OP_F90_RANGE and OP_DECFLOAT.
* ada-operator.inc: Rename the file to ...
* ada-operator.def: ... here, wrap all the entries by macro OP.
* expprint.c (op_name_standard): Remove all the entries. Include
"std-operator.def" instead.
* expression.h (enum exp_opcode): Include "std-operator.def" and
"ada-operator.def". Move all the entries ...
* std-operator.def: ... here, wrap all the entries by macro OP.
* python/python.c (execute_gdb_command): Call
prevent_dont_repeat.
* top.c (suppress_dont_repeat): New global.
(dont_repeat): Use it.
(prevent_dont_repeat): New function.
* command.h (prevent_dont_repeat): Declare.
This makes several adjustements to the configure python-config.py
scripts to deal with the differences between a Unix install of Python
and a Windows install of Python (as downloaded from the Python website).
Differences:
- The Python executable is directly in the python prefix directory
as opposed to inside the bin/ subdirectory.
- The name of the python library is does not have a dot in the version
number: On Unix, we have libpython2.7, while on Windows, it's
libpython27. So the regexp extracting the python version from
the Python lib filename had to be adjusted slightly.
Also, the tests checking the name of the libpython had to be
adjusted to allow for that.
- There are no link options following the -lpython<version> switch
on Windows, but the regexp extracting the python version was
using it as a delimiter. It had to be removed.
- python-config.py does not work on Windows, mostly because
some sysconfig variables are missing. They are not necessary
so the script was adapted to skip them if not defined.
- The paths returned by python-config.py follow the Windows filename
convention in terms of the directory separator, and this is causing
trouble when the build environment is cygwin (while the compiler
and Python are MinGW). We could have fixed that in the configure
script, but it felt simpler to do so in python-config.py
gdb/ChangeLog:
* configure.ac: Add handling of Python distribution on Windows.
* python-config.py: If the LIBS, SYSLIBS, LIBPL and/or LINKFORSHARED
sysconfig variables are not defined, then do not use them.
On Windows, if LIBPL is not defined, then use prefix + '/libs'
instead. On Windows, return all paths using forward-slashes
rather than backslashes.
This is preparation work for being able to build GDB with Python
support on MinGW.
So far, the "python<version>" subdirectory needs to be specified
when including a Python header file. In order to do that, we have
some special configury that tweaks the include path returned by
python-config.py such that the use of the subdirectory in the include
is necessary. This was done in order to protect ourselves from
possible filename conflicts, since some of the filenames chosen by
Python were a little generic.
The problem is that this cannot work with a standard Python install
on MinGW systems. On such systems, the .h files are located in
<python_prefix>/include. So, in preparation for allowing us to build
GDB on MinGW with Python support enabled, this patch changes the
requirement to provide the "python<version>" subdirectory in the
include directive.
The positive consequence is that we no longer need to have a set
of #include directives for each version of Python, since the include
directive is now the same for all versions of Python. However, the
downside is that we are losing the level of protection we were trying
to achieve by forcing the subdirectory in the include directive.
In order to reduce a bit the consequences of a possible conflict,
this patch also changes the location where the -I/path/to/python
switch goes, to be last in the list (suggested by Doug Evans).
One last change is the fact that we are now including Python.h
and all other Python include headers using angle brackets rather
than double-quotes. This fixes a problem on case-insensitive
systems where #include "Python.h" causes our gdb/python/python.h
header to be included instead of Python's <Python.h> header.
gdb/ChangeLog:
* configure.ac: Remove fallback behavior for building
against Python. Remove tweaking of Python include path.
Add PYTHON_CPPFLAGS and PYTHON_LIBS substitution.
(AC_TRY_LIBPYTHON): Adjust program used in linking test.
If link is successful, set PYTHON_CPPFLAGS and PYTHON_LIBS.
Always restore CPPFLAGS and LIBS after linking test.
* configure: Regenerated.
* Makefile.in (INTERNAL_CPPFLAGS): Add @PYTHON_CPPFLAGS@.
(INSTALLED_LIBS, CLIBS): Add @PYTHON_LIBS@.
* python/python-internal.h: Adjust includes of Python .h files.
Discovered by Pierre Muller.
gdb/ChangeLog:
* inflow.c (gdb_has_a_terminal): Fix typo in interactive_mode
value test.
gdb/testsuite/ChangeLog:
* gdb.base/interact.exp: Add extra tests that verify that
the value of the interactive-mode setting does not change
after the script is sourced.
* tracepoint.c (tfile_xfer_partial): If there's no traceframe
selected, don't try iterating over the traceframe's blocks.
(tfile_has_stack): If there's no traceframe selected, then there's
no stack.
(tfile_has_registers): If there's no traceframe selected, then
there's no registers.
gdb/testsuite/
* gdb.trace/tfile.exp: Test that with no traceframe selected,
there's no stack or registers.
* regcache.c (init_register_cache): Initialize
regcache->register_status.
(free_register_cache): Release regcache->register_status.
(regcache_cpy): Copy register_status.
(registers_to_string): Print 'x's for unavailable registers.
(supply_register): Mark the register's status valid or
unavailable, depending on whether a buffer was passed in or not.
(supply_register_zeroed): New.
(supply_regblock): Mark the registers' status valid or
unavailable, depending on whether a buffer was passed in or not.
* regcache.h (REG_UNAVAILABLE, REG_VALID): New defines.
(struct regcache): New `register_status' field.
(supply_register_zeroed): Declare.
* i387-fp.c (i387_xsave_to_cache): Zero out registers using
supply_register_zeroed, rather than passing a NULL buffer to
supply_register.
* tracepoint.c (fetch_traceframe_registers): Update comment.
* tracepoint.c (tfile_read): New.
(tfile_open): Use it.
(tfile_get_traceframe_address): Use it.
(tfile_trace_find): Use it.
(walk_blocks_callback_func): New typedef.
(match_blocktype): New function.
(traceframe_walk_blocks): New function.
(traceframe_find_block_type): New function.
(tfile_fetch_registers, tfile_xfer_partial)
(tfile_get_trace_state_variable_value): Use
traceframe_find_block_type and tfile_read.
PR/symtab 11766:
* gdb/objfiles.h (struct objfile) <addr_low>: New field.
* gdb/solib.c (solib_read_symbols): Check for addr_low in
equality test for objfile, initialize addr_low if needed.
Ulrich Weigand
Andrew Burgess
gdbadmin
Pedro Alves
Joel Brobecker
Jan Kratochvil
Paul Pluzhnikov
Michael Snyder
Sami Wagiaalla
Tom Tromey
Yao Qi
Richard Earnshaw
Kevin Buettner
Thiago Jung Bauermann