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Andrew Burgess d354055e6e gdb/riscv: Improve non-dwarf stack unwinding
This commit improves the prologue scanning stack unwinder, to better
support AUIPC, LUI, and more variants of ADD and ADDI.

This allows unwinding over frames containing large local variables,
where the frame size does not fit into a single instruction immediate,
and is first loaded into a temporary register, before being added to
the stack pointer.

A new test is added that tests this behaviour.  As there's nothing
truely RiscV specific about this test I've added it into gdb.base, but
as this depends on target specific code to perform the unwind it is
possible that some targets might fail this new test.

gdb/ChangeLog:

	* riscv-tdep.c (riscv_insn::decode): Decode c.lui.
	(riscv_scan_prologue): Split handling of AUIPC, LUI, ADD, ADDI,
	and NOP.

gdb/testsuite/ChangeLog:

	* gdb.base/large-frame-1.c: New file.
	* gdb.base/large-frame-2.c: New file.
	* gdb.base/large-frame.exp: New file.
	* gdb.base/large-frame.h: New file.
2018-09-26 14:08:39 +01:00
bfd elf32-nds32: Remove elf32_nds32_allocate_dynrelocs 2018-09-26 08:27:23 -04:00
binutils Revert part of commit 32ec889602 2018-09-22 08:46:20 +09:30
config
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gas S/390: Fix symbolic displacement in lay 2018-09-25 17:13:28 +02:00
gdb gdb/riscv: Improve non-dwarf stack unwinding 2018-09-26 14:08:39 +01:00
gold
gprof
include ELF: Don't include zero size sections at start of PT_NOTE segment 2018-09-21 04:08:01 -07:00
intl
ld Couple of minor tweaks to the linker testsuite. 2018-09-25 08:15:36 +02:00
libdecnumber
libiberty
opcodes Fix incorrect extraction of signed constants in nios2 disassembler. 2018-09-23 12:31:23 -07:00
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		   README for GNU development tools

This directory contains various GNU compilers, assemblers, linkers, 
debuggers, etc., plus their support routines, definitions, and documentation.

If you are receiving this as part of a GDB release, see the file gdb/README.
If with a binutils release, see binutils/README;  if with a libg++ release,
see libg++/README, etc.  That'll give you info about this
package -- supported targets, how to use it, how to report bugs, etc.

It is now possible to automatically configure and build a variety of
tools with one command.  To build all of the tools contained herein,
run the ``configure'' script here, e.g.:

	./configure 
	make

To install them (by default in /usr/local/bin, /usr/local/lib, etc),
then do:
	make install

(If the configure script can't determine your type of computer, give it
the name as an argument, for instance ``./configure sun4''.  You can
use the script ``config.sub'' to test whether a name is recognized; if
it is, config.sub translates it to a triplet specifying CPU, vendor,
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If you have more than one compiler on your system, it is often best to
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	CC=gcc ./configure
	make

A similar example using csh:

	setenv CC gcc
	./configure
	make

Much of the code and documentation enclosed is copyright by
the Free Software Foundation, Inc.  See the file COPYING or
COPYING.LIB in the various directories, for a description of the
GNU General Public License terms under which you can copy the files.

REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info
on where and how to report problems.