Provides API for crash_target to fetch registers of given
CPU. It will allow gdb to perform such commands as "bt",
"frame", "info locals".
Highlevel API is crash_get_cpu_reg (). It calls machine
(architecture) specific function: machdep->get_cpu_reg().
Input arguments such as register number and register size
come from gdb arch information. So, get_cpu_regs()
implementations in crash must understand it.
Signed-off-by: Alexey Makhalov <amakhalov@vmware.com>
Main changes:
[1] update gdb-7.6.patch to gdb-10.2.patch, and keep all functionality
and good compatibility
[2] remove unneeded patches(gdb-7.6-proc_service.h.patch and
gdb-7.6-ppc64le-support.patch)
[3] to make the c++ compiler happy, add the extern "C" to eliminate
compilation issues, also add CXXFLAGS=-m32 to generate proper
32bit object files
[4] the parameter types of some functions are changed, eg, the set of
prettyprint variables
[5] eliminate error_hook() and SJLJ while running in C++ code (after
gdb_command_funnel()) use try-catch mechanism instead
[6] request_types() is redone to do not call GNU_GET_NEXT_DATATYPE multiple
times but single usage of GNU_ITERATE_DATATYPES with proper callback
instead. Complete iteration happens on C++ side now.
[7] remove "struct global_iterator" from request structure, but add
several fields (including callback pointer) to be able to perform
iteration on C++ side
[8] type of "linux_banner" symbol is reported as 'D' by new gdb as its
section ".rodata" marked as writable in vmlinux
[9] BFD API has changed.
[10] the deprecated_command_loop_hook got deprecated. So, call crash
main_loop() directly from gdb captured_main()
[11] remove previously used hooks for that in target.c. Add crash_target
for gdb to provide target operations such as xfer_partial to read
and write crash dump memory.
Signed-off-by: Alexey Makhalov <amakhalov@vmware.com>
Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
Tao Liu
Alexey Makhalov