Mike Frysinger [Thu, 31 Dec 2015 02:01:58 +0000 (21:01 -0500)]
sim: cris/m68hc11: move default endian/alignment to configure
GDB Administrator [Thu, 31 Dec 2015 00:00:10 +0000 (00:00 +0000)]
Automatic date update in version.in
Mike Frysinger [Wed, 30 Dec 2015 11:03:31 +0000 (06:03 -0500)]
sim: h8300: inline sim_state_initialize
All the state is handled already by the common cpu allocation which
zeros out the entire state.
Mike Frysinger [Wed, 30 Dec 2015 10:58:12 +0000 (05:58 -0500)]
sim: h8300: simplify h8300_reg_{fetch,store} funcs
We can leverage the cpu->regs array rather than going through the
function helpers to get nice compact code.
Further, fix up the return values: return -1 when we can't find a
register (and let the caller write out warnings), return 2/4 when
we actually write out that amount, and handle the zero reg.
Mike Frysinger [Wed, 30 Dec 2015 09:28:10 +0000 (04:28 -0500)]
sim: h8300: switch to common sim-resume
Mike Frysinger [Wed, 30 Dec 2015 10:19:40 +0000 (05:19 -0500)]
sim: h8300: move default endian/alignment to configure
Mike Frysinger [Wed, 30 Dec 2015 04:54:12 +0000 (23:54 -0500)]
sim: simplify STATE_MY_NAME setup
No point in writing basename ourselves when libiberty provides one.
Mike Frysinger [Wed, 30 Dec 2015 08:28:45 +0000 (03:28 -0500)]
sim: arm/d10v/h8300/m68hc11/microblaze/mips/mn10300/moxie/sh/v850: convert to common sim_{fetch,store}_register
Mike Frysinger [Wed, 30 Dec 2015 06:49:53 +0000 (01:49 -0500)]
sim: h8300: move unused/buggy lregs array
This array isn't used anywhere, and the init phase actually corrupts
some memory because the array has 18 elements but tries to set the
19th (ZERO) position.
Mike Frysinger [Wed, 30 Dec 2015 06:26:08 +0000 (01:26 -0500)]
sim: h8300: drop unused inst.h
We can also drop the compile.o rule since the common dep generation
logic takes care of this for us.
Alan Modra [Tue, 29 Dec 2015 22:50:20 +0000 (09:20 +1030)]
Fix assorted ChangeLog errors
Kevin Buettner [Mon, 16 Nov 2015 21:58:07 +0000 (14:58 -0700)]
sim: ppc: track closed state of file descriptors 0, 1, and 2.
This change tracks the "closed" state of file descriptors 0, 1, and 2,
introducing the function fdbad() to emul_netbsd.c and emul_unix.c.
Note that a function of the same name and purpose exists in
sim/common/callback.c.
This patch eliminates all of the "unresolved testcases" when testing
GDB against the powerpc simulator.
This occurs because the powerpc simulator closes, on behalf of the
testcase, the file descriptors associated with stdin, stdout, and
stderr. GDB still needs these descriptors to communicate with the
user or, in this case, with the testing framework.
GDB Administrator [Wed, 30 Dec 2015 00:00:09 +0000 (00:00 +0000)]
Automatic date update in version.in
GDB Administrator [Tue, 29 Dec 2015 00:00:08 +0000 (00:00 +0000)]
Automatic date update in version.in
Patrick Palka [Mon, 2 Nov 2015 18:21:44 +0000 (13:21 -0500)]
Use libiberty's crc32 implementation in gdbserver
Tested on x86_64-pc-linux-gnu native-gdbserver, no new regressions.
gdb/gdbserver/ChangeLog:
* server.c (crc32_table): Delete.
(crc32): Use libiberty's xcrc32 function.
GDB Administrator [Mon, 28 Dec 2015 00:00:09 +0000 (00:00 +0000)]
Automatic date update in version.in
Sandra Loosemore [Sun, 27 Dec 2015 20:30:26 +0000 (12:30 -0800)]
Correct nios2 _gp address computation.
2015-12-27 Sandra Loosemore <sandra@codesourcery.com>
bfd/
* elf32-nios2.c (nios2_elf_assign_gp): Correct computation of _gp
address.
(nios2_elf32_relocate_section): Tidy code for R_NIOS2_GPREL error
messages.
Mike Frysinger [Sun, 27 Dec 2015 06:41:27 +0000 (01:41 -0500)]
sim: aarch64/msp430: fix disassembler usage
The disasm framework reserves the private_data field for the disassemblers
themselves, not for people who use the disassembler. Instead, there is an
application_data field for callers such as the sim. Switch to it to avoid
random corruption/crashes when the disassemblers use private_data.
Mike Frysinger [Fri, 10 Apr 2015 23:40:34 +0000 (19:40 -0400)]
sim: unify sim-hload
Pretty much all targets are using this module already, so add it to the
common list of objects. The only oddball out here is cris and that's
because it supports loading via an offset for all the phdrs. We drop
support for that.
Mike Frysinger [Sun, 27 Dec 2015 01:20:23 +0000 (20:20 -0500)]
sim: punt WITH_DEVICES & tconfig.h support
No arch is using this anymore, and we want all new ports using the
hardware framework instead. Punt WITH_DEVICES and the two callbacks
device_io_{read,write}_buffer.
We can also punt the tconfig.h file as no port is using it anymore.
This fixes in-tree builds that get confused by picking up the wrong
one (common/ vs <port>/) caused by commit
ae7d0cac8ce971f7108d270c.
Any port that needs to set up a global define can use their own
sim-main.h file that they must provide regardless.
Mike Frysinger [Sun, 27 Dec 2015 00:02:07 +0000 (19:02 -0500)]
sim: bfin: push down mmr address/size checks
The bfin port is using the WITH_DEVICES framework for two reasons:
- get access to the cpu making the request (if available)
- check the alignment & size for core & system MMRs
We addressed the first part with commit
dea10706e9159ba6e94eab4c25010f3,
and we handle the second part with this commit. Arguably this is more
correct too because trying to do bad reads/writes directly (when devices
support is disabled) often results in bad memory accesses.
As part of this clean up, we also adjust all of the existing logic that
would reject invalid accesses: the code was relying on the checks never
returning, but that's not the case when things like gdb (via the user's
commands) are making the requests. Thus we'd still end up with bad mem
accesses, or sometimes gdb being hung due to while(1) loops.
Now we can connect (most of) these models into any address and have them
work correctly.
GDB Administrator [Sun, 27 Dec 2015 00:00:15 +0000 (00:00 +0000)]
Automatic date update in version.in
Mike Frysinger [Sat, 26 Dec 2015 23:22:37 +0000 (18:22 -0500)]
sim: bfin: avoid stack error under asan
We set up an array of 3 elements and then index into it with a 2bit
value. We check the range before we actually use the pointer, but
the indexing is enough to make asan upset, so just stuff a fourth
value in there to keep things simple.
Mike Frysinger [Sat, 26 Dec 2015 19:16:51 +0000 (14:16 -0500)]
sim: sim-core: pass down cpu to hw accesses when available
The bfin port has been using the device callback largely so it could be
passed the cpu when available. Add this logic to the common core code
so all ports get access to the active cpu.
The semantics of these buffer functions are changed slightly in that
errors halt the engine synchronously rather than returning the length
to the caller. We'll probably adjust this in a follow up commit.
The bfin code isn't updated just yet as it has a bit more logic in the
device layer that needs to be unwound at which point we can delete it
entirely.
Mike Frysinger [Sat, 26 Dec 2015 16:35:03 +0000 (11:35 -0500)]
sim: mips: delete mmu stubs to move to common sim_{read,write}
The only unique thing about mip's sim_{read,write} helpers is the call to
address_translation on the incoming address. When we look closer at that
function though, we see it's just a stub that maps physical to virtual,
and the cache/return values are hardcoded. If we delete this function,
we can then collapse all the callers and drop the custom sim_{read,write}
logic entirely.
Some day we might want to add MMU support, but when we do, we'll want to
have the common layers handle things so all targets benefit.
Mike Frysinger [Sat, 26 Dec 2015 13:13:38 +0000 (08:13 -0500)]
sim: cris: do not pass cpu when writing memory during init
The point of passing down the cpu to core reads/writes is to signal which
cpu is making the access. For system accesses (such as internal memory
initialization), passing the cpu down doesn't make sense, and in the case
of early init like cris, can cause crashes. Since the cpu isn't fully set
up at this point, if the core code tries to access some fields (like the
PC reg), it'll crash. While cris shouldn't be doing this setup here (it
should be in the inferior stage), we'll deal with that later.
Mike Frysinger [Sat, 26 Dec 2015 12:05:41 +0000 (07:05 -0500)]
sim: standardize sim_create_inferior handling of argv a bit more
For targets that process argv in sim_create_inferior, improve the code:
- provide more details in the comment
- make the check for when to re-init more robust
- clean out legacy sim_copy_argv code
This will be cleaned up more in the future when we have a common inferior
creation function, but at least help new ports get it right until then.
Mike Frysinger [Sat, 26 Dec 2015 12:12:13 +0000 (07:12 -0500)]
sim: aarch64: move ChangeLog content
Thomas Preud'homme [Sat, 26 Dec 2015 02:24:58 +0000 (10:24 +0800)]
Add test for ARMv6-M farcall with no profile info
2015-12-24 Thomas Preud'homme <thomas.preudhomme@arm.com>
ld/testsuite/
* ld-arm/arm-elf.exp: Run new test "Thumb-Thumb farcall v6-M (no
profile)".
* ld-arm/farcall-thumb-thumb-m-no-profile-a.s: New file.
* ld-arm/farcall-thumb-thumb-m-no-profile-b.s: Likewise.
* ld-arm/farcall-thumb-thumb-m-no-profile.d: Likewise.
GDB Administrator [Sat, 26 Dec 2015 00:00:17 +0000 (00:00 +0000)]
Automatic date update in version.in
Sandra Loosemore [Fri, 25 Dec 2015 19:36:52 +0000 (11:36 -0800)]
Document that the PATTERN argument to gdb_test is optional.
2015-12-25 Sandra Loosemore <sandra@codesourcery.com>
gdb/testsuite/
* lib/gdb.exp (gdb_test): Update comments to clarify that the
PATTERN argument is optional.
Mike Frysinger [Fri, 25 Dec 2015 18:19:07 +0000 (13:19 -0500)]
sim: frv: punt WITH_DEVICE support
The frv port used the device logic to support a single cache address,
and the comments around that are "these were merely copied from a diff
port and are unused", plus the code to attach the memory is "#if 0".
Just punt it all.
Mike Frysinger [Fri, 25 Dec 2015 18:04:26 +0000 (13:04 -0500)]
sim: m32r: migrate from WITH_DEVICES to WITH_HW
The m32r port was using the device framework to handle two devices: the
cache and uart registers. Both can be implemented in the newer hardware
framework instead which allows us to drop the device logic entirely, as
well as delete the tconfig.h file.
While creating the new uart device model, I also added support for using
stdin to read/write data rather than only supporting sockets.
This has been lightly tested as there doesn't appear to be test coverage
for the code already. If anyone still cares about this port, then they
should (hopefully) file bug reports.
Mike Frysinger [Fri, 25 Dec 2015 11:03:22 +0000 (06:03 -0500)]
sim: cris: migrate from WITH_DEVICES to WITH_HW
The cris port was using the device framework to handle two addresses when
the --cris-900000xx flag was specified. That can be implemented using the
newer hardware framework instead which allows us to drop the device logic
entirely, as well as delete the tconfig.h file. Basically we create a new
cris_900000xx device model and move the read logic out of devices.c and
into that. The rest of the devices logic was callback to the hardware
framework already.
Mike Frysinger [Fri, 25 Dec 2015 10:54:12 +0000 (05:54 -0500)]
sim: cris: clean up rvdummy a bit
This fixes a few warnings when compiling the rvdummy tool.
Mike Frysinger [Fri, 25 Dec 2015 10:51:46 +0000 (05:51 -0500)]
sim: cris: set up sane default path to rvdummy
Much like we autodetect the path to the run program when there is none
set explicitly, do the same for the rvdummy program. Otherwise the
default make check fails to execute the helper properly.
Mike Frysinger [Fri, 25 Dec 2015 10:45:47 +0000 (05:45 -0500)]
sim: hw-properties: delete trace calls
These trace calls don't seem to add anything useful and break the cris
hw tests, so punt them. They were disabled before commit
6d519a4606b9
but were re-enabled as part of TRACE macro cleanups.
Mike Frysinger [Fri, 25 Dec 2015 09:45:57 +0000 (04:45 -0500)]
sim: drop WITH_ENGINE define
We enable this everywhere already, and all new ports should use the
engine logic, so no point in making it an option to disable.
Mike Frysinger [Fri, 25 Dec 2015 09:27:27 +0000 (04:27 -0500)]
sim: sim-model: build for everyone
Rather than include this for some targets, set it up so we can build it
all the time via the common code. This makes it easier for targets to
opt into it when they're ready, increases build coverage, and allows us
to centralize much of the logic.
We also get to delete tconfig.h from two more targets -- they were
setting WITH_DEVICES to 0 which has the same behavior as not defining
it at all.
While the SIM_HAVE_MODEL knob is gone, we now have WITH_MODEL_P, but it
is only used by the common sim-model code. We use it to declare dummy
model lists when the arch hasn't created its own.
Mike Frysinger [Fri, 25 Dec 2015 09:12:55 +0000 (04:12 -0500)]
sim: move MACH/MODEL types into SIM_xxx namespace
The "MACH" and "MODEL" names are a bit generic and collide with symbols
used by other sections of code (like h8300's opcodes). Since these are
sim-specific types, they really should have a "SIM_" prefix.
Mike Frysinger [Mon, 16 Nov 2015 03:45:36 +0000 (19:45 -0800)]
sim: arm: delete unused code
These vestiges of the 20 year old emulator are just getting in the way.
Punt all the dead code we either don't compile or don't use.
Mike Frysinger [Fri, 25 Dec 2015 07:34:40 +0000 (02:34 -0500)]
sim: move WITH_SCACHE_PBB to sim-main.h
This helps us break up tconfig.h more. Any file using this define should
be pulling in sim-main.h already, so things should continue working.
Mike Frysinger [Fri, 25 Dec 2015 07:13:18 +0000 (02:13 -0500)]
sim: device_error: punt
Only four targets implement this function, and three of them do nothing.
The 4th merely calls abort. Since calls to this function are followed
by calls to sim_hw_abort or sim_io_error, this is largely useless. In
the two places where we don't, replace the call with sim_engine_abort.
We want to kill off the WITH_DEVICES logic in favor of WITH_HW, so this
is a good first step.
Mike Frysinger [Fri, 25 Dec 2015 05:23:50 +0000 (00:23 -0500)]
sim: always enable callback memory
We enable WITH_CALLBACK_MEMORY everywhere and don't provide a way to
turn it off, and no target does so. Make it unconditional for all
to keep things simple.
Mike Frysinger [Fri, 25 Dec 2015 05:09:48 +0000 (00:09 -0500)]
sim: dv-pal: always use CPU_INDEX
Since the core always provides CPU_INDEX, use it. The current code
doesn't actually use it even though it should since it doesn't include
the right headers.
Mike Frysinger [Fri, 25 Dec 2015 03:37:11 +0000 (22:37 -0500)]
sim: mips: delete TARGET_TX3904 define
With the LMA cleanup, we no longer need this define.
Mike Frysinger [Fri, 25 Dec 2015 03:27:04 +0000 (22:27 -0500)]
sim: mips: move SIM_QUIET_NAN_NEGATED to sim-main.h
We want to kill off tconfig.h, so move the one define mips still uses
to sim-main.h.
Mike Frysinger [Fri, 25 Dec 2015 02:36:09 +0000 (21:36 -0500)]
sim: make LMA loading the default for all targets
Most targets already default to loading code via their LMA, but for
a few, this means the default changes from loading VMA to LMA. It's
better to have the different targets be consistent, and allows some
code clean up.
Mike Frysinger [Thu, 24 Dec 2015 20:49:31 +0000 (15:49 -0500)]
sim: cris: move option install to sim_open
We've moved custom option install for other targets to sim_open, so update
cris too. It's the last one using MODULE_LIST, so we can drop that from
the common code too.
Mike Frysinger [Thu, 24 Dec 2015 22:37:01 +0000 (17:37 -0500)]
sim: delete old breakpoint code
This code relies on the old sim-break module, but that was deleted in 2003.
The module only existed for gdb to tell the sim to set breakpoints on its
behalf, but then that logic was abandoned in favor of gdb knowing all about
proper breakpoints (since it does already for non-sim targets). Some dead
code lived on in the older ports though -- clean it up now.
Mike Frysinger [Thu, 24 Dec 2015 22:26:54 +0000 (17:26 -0500)]
sim: h8300: move h8300-specific options out of common code
Register the options in sim_open like other arches to avoid having to hack
up the common modules.
Mike Frysinger [Thu, 24 Dec 2015 22:01:21 +0000 (17:01 -0500)]
sim: enable watchpoint module everywhere
We build & bundle the watchpoint module everywhere, but we don't make
the command line flags available by default. A few targets opted in,
but most did not. Just enable the flag for everyone. Not all targets
will respect the flags (making them nops), but shouldn't be a big deal.
This is how we handle other common modules already.
Mike Frysinger [Thu, 24 Dec 2015 21:41:55 +0000 (16:41 -0500)]
sim: delete SIM_HAVE_FLATMEM support
No target has used this, and it's a cheap hack in place in using the
common memory module. We want everyone using that though, so drop
support for flatmem entirely.
Mike Frysinger [Thu, 24 Dec 2015 21:38:37 +0000 (16:38 -0500)]
sim: delete SIM_HAVE_MEM_SIZE
This define isn't used anywhere (doesn't seem to ever have been used by
versions committed), so delete the commented out code as it's dead.
Mike Frysinger [Thu, 24 Dec 2015 21:04:26 +0000 (16:04 -0500)]
sim: delete SIM_HAVE_SIMCACHE
This was used by the old run interface, but we punted that awhile ago,
so drop this define too.
GDB Administrator [Fri, 25 Dec 2015 00:00:08 +0000 (00:00 +0000)]
Automatic date update in version.in
Thomas Preud'homme [Thu, 24 Dec 2015 09:33:17 +0000 (17:33 +0800)]
Add support for linking ARMv8-M object files
2015-12-24 Thomas Preud'homme <thomas.preudhomme@arm.com>
bfd/
* elf32-arm.c (using_thumb_only): Check that profile is 'M' and update
logic around Tag_CPU_arch values to return TRUE for ARMv8-M
architectures.
(tag_cpu_arch_combine): Define v8m_baseline and v8m_mainline and update
v4t_plus_v6_m and comb to deal with ARMv8-M Tag_CPU_arch merging logic.
(elf32_arm_merge_eabi_attributes): Add Tag_CPU_name values for
ARMv8-M.
bfd/testsuite/
* ld-arm/arm-elf.exp (armeabitests_common): Run new tests
"Thumb-Thumb farcall v8-M", "EABI attribute merging 8",
"EABI attribute merging 9" and "EABI attribute merging 10".
(Thumb-Thumb farcall v8-M): Renamed to ...
(Thumb-Thumb farcall v8-M Mainline): This.
(Thumb-Thumb farcall v8-M Baseline): New test.
* ld-arm/attr-merge-8a.s: New file.
* ld-arm/attr-merge-8b.s: Likewise.
* ld-arm/attr-merge-8.attr: Likewise.
* ld-arm/attr-merge-9a.s: Likewise.
* ld-arm/attr-merge-9b.s: Likewise.
* ld-arm/attr-merge-9.out: Likewise.
* ld-arm/attr-merge-10a.s: Likewise.
* ld-arm/attr-merge-10b.s: Likewise.
* ld-arm/attr-merge-10.attr: Likewise.
Thomas Preud'homme [Thu, 24 Dec 2015 09:26:08 +0000 (17:26 +0800)]
Add assembler support for ARMv8-M Baseline
2015-12-24 Thomas Preud'homme <thomas.preudhomme@arm.com>
bfd/
(tag_cpu_arch_combine): Adjust comment in v4t_plus_v6_m with regards
to merging with ARMv8-M Baseline.
binutils/
* readelf.c (arm_attr_tag_CPU_arch): Add ARMv8-M Baseline Tag_CPU_arch
value.
gas/
* config/tc-arm.c (arm_ext_v6t2_v8m): New feature for instructions
shared between ARMv6T2 and ARMv8-M.
(move_or_literal_pool): Check mov.w/mvn and movw availability against
arm_ext_v6t2 and arm_ext_v6t2_v8m respectively instead of checking
arm_arch_t2.
(do_t_branch): Error out for wide conditional branch instructions if
targetting ARMv8-M Baseline.
(non_v6t2_wide_only_insn): Add the logic for new wide-only instructions
in ARMv8-M Baseline.
(wide_insn_ok): New function.
(md_assemble): Use wide_insn_ok instead of non_v6t2_wide_only_insn and
adapt error message for unsupported wide instruction to ARMv8-M
Baseline.
(insns): Reorganize instructions shared by ARMv8-M Baseline and
ARMv6t2 architecture.
(arm_cpus): Set feature bit ARM_EXT2_V6T2_V8M for marvell-pj4 and
marvell-whitney cores.
(arm_archs): Define armv8-m.base architecture.
(cpu_arch_ver): Define ARM_ARCH_V8M_BASE architecture version.
(aeabi_set_public_attributes): Add logic to set Tag_CPU_arch to 17 for
ARMv8-M Mainline. Set Tag_DIV_use for ARMv8-M Baseline as well.
gas/testsuite/
* gas/arm/archv8m-base.d: New file.
* gas/arm/attr-march-armv8m.base.d: Likewise.
* gas/arm/armv8m.base-idiv.d: Likewise.
* gas/arm/any-armv8m.d: Adapt to deal with ARMv8-M Baseline.
include/elf/
* arm.h (TAG_CPU_ARCH_V8M_BASE): Declare.
include/opcode/
* arm.h (ARM_EXT2_V6T2_V8M): New extension bit.
(ARM_AEXT2_V8A): New architecture extension bitfield.
(ARM_AEXT2_V8_1A): Use ARM_AEXT2_V8A instead of ARM_EXT2_ATOMICS.
(ARM_AEXT_V8M_BASE): New architecture extension bitfield.
(ARM_AEXT2_V8M): Add extension bit ARM_EXT2_V6T2_V8M.
(ARM_ARCH_V6T2): Use ARM_EXT2_V6T2_V8M for the second extension
bitfield.
(ARM_ARCH_V6KT2): Likewise.
(ARM_ARCH_V6ZT2): Likewise.
(ARM_ARCH_V6KZT2): Likewise.
(ARM_ARCH_V7): Likewise.
(ARM_ARCH_V7A): Likewise.
(ARM_ARCH_V7VE): Likewise.
(ARM_ARCH_V7R): Likewise.
(ARM_ARCH_V7M): Likewise.
(ARM_ARCH_V7EM): Likewise.
(ARM_ARCH_V8A): Likewise.
(ARM_ARCH_V8M_BASE): New architecture bitfield.
(ARM_ARCH_THUMB2): Include instructions shared by ARMv6t2 and ARMv8-M.
(ARM_ARCH_V7A_SEC): Use ARM_EXT2_V6T2_V8M for the second extension
bitfield and reindent.
(ARM_ARCH_V7A_MP_SEC): Likewise.
(ARM_ARCH_V7R_IDIV): Likewise.
(ARM_ARCH_V8A_FP): Use ARM_AEXT2_V8A instead of ARM_EXT2_ATOMICS.
(ARM_ARCH_V8A_SIMD): Likewise.
(ARM_ARCH_V8A_CRYPTOV1): Likewise.
opcodes/
* arm-dis.c (arm_opcodes): Guard movw, movt cbz, cbnz, clrex, ldrex,
ldrexb, ldrexh, strex, strexb, strexh shared by ARMv6T2 and ARMv8-M by
ARM_EXT2_V6T2_V8M instead of ARM_EXT_V6T2.
Thomas Preud'homme [Thu, 24 Dec 2015 09:16:19 +0000 (17:16 +0800)]
Add assembler support for ARMv8-M Mainline
2015-12-24 Thomas Preud'homme <thomas.preudhomme@arm.com>
bfd/
(tag_cpu_arch_combine): Adjust v4t_plus_v6_m and comb array to account
for new TAG_CPU_ARCH_V4T_PLUS_V6_M value. Deal with NULL values in
comb array.
binutils/
* readelf.c (arm_attr_tag_CPU_arch): Add ARMv8-M Mainline Tag_CPU_arch
value.
(arm_attr_tag_THUMB_ISA_use): Add ARMv8-M Mainline Tag_THUMB_ISA_use
value.
gas/
* config/tc-arm.c (arm_ext_m): Include ARMv8-M.
(arm_ext_v8m): New feature for ARMv8-M.
(arm_ext_atomics): New feature for ARMv8 atomics.
(do_tt): New encoding function for TT* instructions.
(insns): Add new entries for ARMv8-M specific instructions and
reorganize the ones shared by ARMv8-M Mainline and ARMv8-A.
(arm_archs): Define armv8-m.main architecture.
(cpu_arch_ver): Define ARM_ARCH_V8M_MAIN architecture version and
clarify the ordering rule.
(aeabi_set_public_attributes): Use TAG_CPU_ARCH_* macro to refer to
Tag_CPU_arch values for ARMv7e-M detection. Add logic to keep setting
Tag_CPU_arch to ARMv8-A for -march=all. Also set Tag_CPU_arch_profile
to 'A' if extension bit for atomic instructions is set, unless it is
ARMv8-M. Set Tag_THUMB_ISA_use to 3 for ARMv8-M. Set Tag_DIV_use to 0
for ARMv8-M Mainline.
gas/testsuite/
* gas/arm/archv8m.s: New file.
* gas/arm/archv8m-main.d: Likewise.
* gas/arm/attr-march-armv8m.main.d: Likewise.
* gas/arm/any-armv8m.s: Likewise.
* gas/arm/any-armv8m.d: Likewise.
include/elf/
* arm.h (TAG_CPU_ARCH_V8M_MAIN): Declare.
(MAX_TAG_CPU_ARCH): Define to TAG_CPU_ARCH_V8M_MAIN.
(TAG_CPU_ARCH_V4T_PLUS_V6_M): Define to unused value 15.
include/opcode/
* arm.h (ARM_EXT2_ATOMICS): New extension bit.
(ARM_EXT2_V8M): Likewise.
(ARM_EXT_V8): Adjust comment with regards to atomics and remove
mention of legacy use for that bit.
(ARM_AEXT2_V8_1A): New architecture extension bitfield.
(ARM_AEXT2_V8_2A): Likewise.
(ARM_AEXT_V8M_MAIN): Likewise.
(ARM_AEXT2_V8M): Likewise.
(ARM_ARCH_V8A): Use ARM_EXT2_ATOMICS for features in second bitfield.
(ARM_ARCH_V8_1A): Likewise with ARM_AEXT2_V8_1A.
(ARM_ARCH_V8_2A): Likewise with ARM_AEXT2_V8_2A.
(ARM_ARCH_V8M_MAIN): New architecture feature bitfield.
(ARM_ARCH_V8A_FP): Use ARM_EXT2_ATOMICS for features in second bitfield
and reindent.
(ARM_ARCH_V8A_SIMD): Likewise.
(ARM_ARCH_V8A_CRYPTOV1): Likewise.
(ARM_ARCH_V8_1A_FP): Use ARM_AEXT2_V8_1A to set second bitfield of
feature bits.
(ARM_ARCH_V8_1A_SIMD): Likewise.
(ARM_ARCH_V8_1A_CRYPTOV1): Likewise.
opcodes/
* arm-dis.c (arm_opcodes): Guard lda, ldab, ldaex, ldaexb, ldaexh, stl,
stlb, stlh, stlex, stlexb and stlexh by ARM_EXT2_ATOMICS instead of
ARM_EXT_V8.
(thumb32_opcodes): Add entries for wide ARMv8-M instructions.
Thomas Preud'homme [Thu, 24 Dec 2015 09:01:42 +0000 (17:01 +0800)]
Consolidate Thumb-1/Thumb-2 ISA detection
2015-12-24 Thomas Preud'homme <thomas.preudhomme@arm.com>
gas/
* config/tc-arm.c (move_or_literal_pool): Check mov.w, mvm and movw
availability against arm_ext_v6t2 instead of checking arm_arch_t2,
fixing comments along the way.
(handle_it_state): Check arm_ext_v6t2 instead of arm_arch_t2 to
generate IT instruction.
(t1_isa_t32_only_insn): New function.
(md_assemble): Use above new function to check for invalid wide
instruction for CPU Thumb ISA and to determine what Thumb extension
bit is necessary for that instruction.
(md_apply_fix): Use arm_ext_v6t2 instead of arm_arch_t2 to decide if
branch is out of range.
include/opcode/
* arm.h (ARM_ARCH_THUMB2): Add comment explaining its meaning and
remove extension bit not including any Thumb-2 instruction.
Thomas Preud'homme [Thu, 24 Dec 2015 08:50:26 +0000 (16:50 +0800)]
Add tests for gas arch autodetection on ARM
2015-12-09 Andre Vieira <andre.simoesdiasvieira@arm.com>
gas/testsuite/
* gas/arm/automatic-bw.d: New.
* gas/arm/automatic-bw.s: New.
* gas/arm/automatic-cbz.d: New.
* gas/arm/automatic-cbz.s: New.
* gas/arm/automatic-clrex.d: New.
* gas/arm/automatic-clrex.s: New.
* gas/arm/automatic-lda.d: New.
* gas/arm/automatic-lda.s: New.
* gas/arm/automatic-ldaex.d: New.
* gas/arm/automatic-ldaex.s: New.
* gas/arm/automatic-ldaexb.d: New.
* gas/arm/automatic-ldaexb.s: New.
* gas/arm/automatic-ldrex.d: New.
* gas/arm/automatic-ldrex.s: New.
* gas/arm/automatic-ldrexd.d: New.
* gas/arm/automatic-ldrexd.s: New.
* gas/arm/automatic-movw.d: New.
* gas/arm/automatic-movw.s: New.
* gas/arm/automatic-sdiv.d: New.
* gas/arm/automatic-sdiv.s: New.
* gas/arm/automatic-strexb.d: New.
* gas/arm/automatic-strexb.s: New.
Joel Brobecker [Tue, 22 Dec 2015 09:28:41 +0000 (13:28 +0400)]
[testsuite/Ada] stop using project files when building test programs
The current approach when building Ada programs for testing is
based on the use of a project file (testsuite/gdb.ada/gnat_ada.gpr).
To do that, we pass a number of additional arguments to target_compile,
one of them being the project file (via "-P/path/to/gnat_ada.gpr").
This used to work well-enough, but AdaCore is currently working towards
removing project-file support from gnatmake (the prefered tool for
using project files is gprbuild). So, we need to either switch
the compilation to gprbuild, or stop using project files.
First, using gprbuild is not always what users will be using to
build their applications. So having the option of using gnatmake
provides more flexibility towards exactly reproducing past bugs.
If we ever need a testcase that requires the use of gprbuild, then
I believe support for a new target needs to be added to dejagnu's
target_compile.
Also, the only real reason behind using a project file in the first
place is that we wanted to make it easy to specify the directory
where all compilation artifacts get stored. This is a consequence
of the organization choice we made for gdb.ada to keep each testcase
well organized. It is very easy to achieve that goal without using
project files.
This is therefore what this patch does: It change gdb_compile_ada
to build any program using gnatmake without using a project file
(by temporarily changing the current working directory).
There is a small (beneficial) side-effect; in the situation where
GDB is built in-tree, gnatmake is called as...
% gnatmake [...] unit.adb
... which means that the debugging info in unit.o will say contain
a filename whose name is 'unit.adb', rather than '/path/to/unit.adb'.
This also better matches what users might typically do. But the side-
effect is that the unit name in the GDB output is not always a full
path. This patch tweaks a couple of testcases to make the path part
optional.
gdb/testsuite:
* lib/ada.exp (target_compile_ada_from_dir): New function.
(gdb_compile_ada): Reimplement avoiding the use of project files.
* gdb.ada/gnat_ada.gpr: Delete.
* gdb.ada/cond_lang.exp: Adjust test to make path before
filename optional.
* gdb.ada/small_reg_param.exp: Likewise.
Tested on x86_64-linux, with both in-tree and out-of-tree builds.
GDB Administrator [Thu, 24 Dec 2015 00:00:15 +0000 (00:00 +0000)]
Automatic date update in version.in
GDB Administrator [Wed, 23 Dec 2015 00:00:08 +0000 (00:00 +0000)]
Automatic date update in version.in
Simon Marchi [Tue, 22 Dec 2015 15:52:31 +0000 (10:52 -0500)]
Remove HP-UX reference in foll-vfork.exp
One more I just found.
Tested with native, native-gdbserver and native-extended-gdbserver on
Linux.
gdb/testsuite/ChangeLog:
* gdb.base/foll-vork.exp: Remove HP-UX special case.
Yury Usishchev [Tue, 22 Dec 2015 15:50:13 +0000 (15:50 +0000)]
ARM: Fix exidx coverage for relocatable builds.
bfd * elf-bfd.h: Add callback to count additional relocations.
* elf32-arm.c (_arm_elf_section_data): Add new counter.
(insert_cantunwind_after): Increment relocations counter.
(elf32_arm_fix_exidx_coverage): Remove exidx entries and add
terminating CANTUNWIND entry only in final builds.
(elf32_arm_add_relocation): New function.
(elf32_arm_write_section): Add relocations in relocatable builds.
(elf32_arm_count_additional_relocs): New function.
(elf_backend_count_additional_relocs): New define.
* bfd/elflink.c (bfd_elf_final_link): Use callback and adjust size of
.rel section.
* bfd/elfxx-target.h (elf_backend_count_additional_relocs): New define.
ld * emultempl/armelf.em (gld${EMULATION_NAME}_after_allocation): Call
elf32_arm_fix_exidx_coverage for relocatable builds.
ld/testsuite
* ld-arm/arm-elf.exp: New test.
* ld-arm/unwind-rel.d: New file.
* ld-arm/unwind-rel1.s: New file.
* ld-arm/unwind-rel2.s: New file.
* ld-arm/unwind-rel3.s: New file.
Joel Brobecker [Sun, 20 Dec 2015 14:39:40 +0000 (09:39 -0500)]
[lynxos] gdbserver hangs when killing inferior from GDB
With any program under GDBserver control on LynxOS, killing
the program from the debugger (using the "kill" command) causes
GDBserver to properly kill the inferior but GDBserver then hangs.
This change of behavior occured after the following change was
applied:
commit
f0ea042932e6922c90df3fd0001497d287b97677
Date: Mon Nov 30 16:05:27 2015 +0000
Subject: gdbserver: don't exit until GDB disconnects
One of the changes introduced by the commit above is that
process_serial_event no longer calls exit after handling
the vKill packet. Instead, what happens is that we wait
until captured_main finds that we no longer have any inferior
to debug, at which point it throws_quit. This (normal) exception
is then expected to propagate all the way to the exception handle
in function "main", which calls exit.
However, before the exception gets propagated, the cleanups
are first executed, and one of the cleanups in question is
detach_or_kill_for_exit_cleanup, which was put in place by
captured_main. detach_or_kill_for_exit_cleanup is basically
a wrapper around detach_or_kill_for_exit, which iterates
over all inferiors, and kills them all.
In our case, we have only one inferior, which we have already
killed during the handling for the "vKill" packet. Unfortunately,
we did not properly clean our internal data for that inferior up,
and so detach_or_kill_for_exit thinks that we still have one inferior,
and therefore tries to kill it. This results in lynx_kill being
called, doing the following:
lynx_ptrace (PTRACE_KILL, ptid, 0, 0, 0);
lynx_wait (ptid, &status, 0);
the_target->mourn (process);
The hang is caused by the call to lynx_wait, which waits for
an event from a process which does not exist...
This patch fixes the issue by enhancing lynx_mourn to clean
the threads and process list up.
gdb/gdbserver/ChangeLog:
* lynx-low.c (lynx_delete_thread_callback): New function.
(lynx_mourn): Properly delete our process and all of its
threads. Remove call to clear_inferiors.
Joel Brobecker [Sun, 20 Dec 2015 05:49:59 +0000 (00:49 -0500)]
gdbserver crash in gdb/gdbserver/thread.c::thread_search_callback
Connecting GDB to a LynxOS-178 GDBserver causes GDBserver to crash:
% gdbserver :4444 simple_main
Process simple_main created; pid = 19
Listening on port 4444
Remote debugging from host 205.232.38.10
Segmentation fault (core dumped)
The crash happens in thread_search_callback where the function
calls the_target->thread_stopped (via the thread_stopped macro)
without verifying whether the callback is NULL or not.
For the record, the regression was introduced by:
commit
a67a9faef0e32886c83611cc7a0ba61e91123063
Date: Mon Nov 30 16:05:26 2015 +0000
Subject: gdbserver:prepare_access_memory: pick another thread
This patch avoids the crash by checking the value of the callback
first, before calling it.
gdb/gdbserver/ChangeLog:
* target.c (thread_search_callback): Add check that
the thread_stopped target callback is not NULL before
calling it.
Joel Brobecker [Sat, 19 Dec 2015 14:21:01 +0000 (09:21 -0500)]
[win32] cannot automatically find executable file [...] warning at GDB startup
The following change...
commit
43499ea30db2a866412c86952c7e1d7b158d806f
Date: Tue Nov 17 15:17:44 2015 +0000
Subject: [C++/mingw] windows-nat.c casts
... causes a small regression in GDB, where we get the following
warning at startup:
% gdb
C:\[...]\gdb.exe: warning: cannot automatically find executable file or library to read symbols.
Use "file" or "dll" command to load executable/libraries directly.
GNU gdb (GDB) 7.10.50.
20151218-cvs (with AdaCore local changes)
[...]
(gdb)
The warning comes from _initialize_loadable which tries to dynamically
load some symbols from kernel32.dll and psapi.dll, and in particular:
hm = LoadLibrary ("psapi.dll");
if (hm)
{
GPA (hm, EnumProcessModules);
GPA (hm, GetModuleInformation);
GPA (hm, GetModuleFileNameEx);
}
The problem is that the new GPA macro assumes that the name of
the variable we use to point to the function, and the name of
its associated symbol are the same. This is mostly the case,
except for GetModuleFileNameEx, where the name is provided by
the GetModuleFileNameEx_name macro (defined differently depending
on whether we are on cygwin or not). As a result, the dynamic
resolution for GetModuleFileNameEx returns NULL, and we trip
the following check which leads to the warning:
if (!EnumProcessModules || !GetModuleInformation || !GetModuleFileNameEx)
{
[...]
warning(_("[...]"));
}
This patch fixes the problem by calling GetProcAddress directly,
rather than through the GPA macro, but in a way which hopefully
avoids the C++ compilation warning that the previous patch was
trying to get rid of.
gdb/ChangeLog:
* windows-nat.c (_initialize_loadable): Fix computing of
GetModuleFileNameEx.
Yoshinori Sato [Wed, 16 Dec 2015 16:42:34 +0000 (01:42 +0900)]
RXv2 support update
2015-12-22 Yoshinori Sato <ysato@users.sourceforge.jp>
opcodes/
* rx-decode.opc (movco): Use uniqe id.
(movli): Likewise.
(stnz): Condition fix.
(mvtacgu): Destination fix.
* rx-decode.c: Regenerate.
bfd/
* archures.c: Add bfd_mach_rx_v2.
* bfd-in2.h: Regenerate.
* cpu-rx.c (arch_info_struct): Add v2 information.
* elf32-rx.c (elf32_rx_machine): Add v2 support.
Mickael Guene [Tue, 22 Dec 2015 14:12:35 +0000 (14:12 +0000)]
Add support for ARM's NOREAD section flag.
include/elf
* arm.h: Add arm SHF_ARM_NOREAD section flag.
bfd * bfd-in2.h: Regenerate.
* section.c: Add SEC_ELF_NOREAD.
* elf32-arm.c (elf32_arm_post_process_headers): Only set
PF_X attribute if a segment only contains section with
SHF_ARM_NOREAD flag.
(elf32_arm_fake_sections): Add SEC_ELF_NOREAD conversion.
(elf32_arm_section_flags): New function to convert SHF_ARM_NOREAD
to bfd flag.
(elf32_arm_lookup_section_flags): New function to allow
INPUT_SECTION_FLAGS directive with SHF_ARM_NOREAD flag.
(elf32_arm_special_sections): Add special sections array
to catch section prefix by '.text.noread' pattern.
ld/testsuite
* ld-arm/arm-elf.exp: New tests.
* ld-arm/thumb1-input-section-flag-match.d: New
* ld-arm/thumb1-input-section-flag-match.s: New
* ld-arm/thumb1-noread-not-present-mixing-two-section.d: New
* ld-arm/thumb1-noread-not-present-mixing-two-section.s: New
* ld-arm/thumb1-noread-present-one-section.d: New
* ld-arm/thumb1-noread-present-one-section.s: New
* ld-arm/thumb1-noread-present-two-section.d: New
* ld-arm/thumb1-noread-present-two-section.s: New
binutils
* readelf.c (get_elf_section_flags): Add support for ARM specific
section flags.
Thomas Preud'homme [Tue, 22 Dec 2015 02:50:21 +0000 (10:50 +0800)]
Add an expect for running commands with CLI jump
2015-12-22 Thomas Preud'homme <thomas.preudhomme@arm.com>
gdb/testsuite/
* lib/mi-support.exp (mi_run_cmd_full): Add an expect for the CLI jump
case.
GDB Administrator [Tue, 22 Dec 2015 00:00:08 +0000 (00:00 +0000)]
Automatic date update in version.in
Simon Marchi [Mon, 21 Dec 2015 19:38:51 +0000 (14:38 -0500)]
Remove dead code in testsuite
This patch removes cases from the testsuite that are not posssibly used. The
messages "Catch of * not yet implemented" were removed here:
https://www.sourceware.org/ml/gdb-patches/2004-01/msg00679.html
I changed the regexp at the same time to match the string more closely.
gdb/testsuite/ChangeLog:
* gdb.base/break.exp: Remove dead code.
* gdb.base/sepdebug.exp: Likewise.
Simon Marchi [Mon, 21 Dec 2015 17:51:54 +0000 (12:51 -0500)]
Remove HP-UX references fom testsuite
This patch removes all special cases for HP-UX, for which support has
been removed earlier, that I found in the testsuite. Note that the hppa
architecture != HP-UX, since other OSes can run on hppa, so I tried to
leave everything that is not HP-UX specific.
Two complete tests were completely HP-UX specific, so I removed them.
I ran the testsuite on Linux x86-64, native and native-gdbserver, and
noticed no regressions.
gdb/testsuite/ChangeLog:
* gdb.asm/asm-source.exp: Remove HP-UX references.
* gdb.base/annota1.exp: Likewise.
* gdb.base/annota3.exp: Likewise.
* gdb.base/attach.exp: Likewise.
* gdb.base/bigcore.exp: Likewise.
* gdb.base/break.exp: Likewise.
* gdb.base/call-ar-st.exp: Likewise.
* gdb.base/callfuncs.exp: Likewise.
* gdb.base/catch-fork-static.exp: Likewise.
* gdb.base/display.exp: Likewise.
* gdb.base/foll-exec-mode.exp: Likewise.
* gdb.base/foll-exec.exp: Likewise.
* gdb.base/foll-fork.exp: Likewise.
* gdb.base/foll-vfork.exp: Likewise.
* gdb.base/funcargs.exp: Likewise.
* gdb.base/hbreak2.exp: Likewise.
* gdb.base/inferior-died.exp: Likewise.
* gdb.base/interrupt.exp: Likewise.
* gdb.base/multi-forks.exp: Likewise.
* gdb.base/nodebug.exp: Likewise.
* gdb.base/sepdebug.exp: Likewise.
* gdb.base/solib1.c: Likewise.
* gdb.base/step-test.exp: Likewise.
* gdb.mi/non-stop.c: Likewise.
* gdb.mi/pthreads.c: Likewise.
* gdb.multi/bkpt-multi-exec.ex: Likewise.
* gdb.threads/pthreads.c: Likewise.
* gdb.threads/staticthreads.exp: Likewise.
* lib/future.exp: Likewise.
* lib/gdb.exp: Likewise.
* gdb.base/so-indr-cl.c: Remove.
* gdb.base/so-indr-cl.exp: Likewise.
* gdb.base/solib.c: Likewise.
* gdb.base/solib.exp: Likewise.
* gdb.base/solib2.c: Likewise.
Simon Marchi [Mon, 21 Dec 2015 16:23:43 +0000 (11:23 -0500)]
Remove references to HP CC/aCC compiler from testsuite
The HP CC/aCC compiler is exclusive to HP-UX, for which support has been
explicitly removed. Therefore, It does not make sense to keep tests
for these compilers' quirks.
gdb/testsuite/ChangeLog:
* gdb.base/break.exp: Remove references to HP CC/aCC compilers.
* gdb.base/call-ar-st.exp: Likewise.
* gdb.base/callfuncs.exp: Likewise.
* gdb.base/condbreak.exp: Likewise.
* gdb.base/constvars.exp: Likewise.
* gdb.base/hbreak2.exp: Likewise.
* gdb.base/langs.exp: Likewise.
* gdb.base/list.exp: Likewise.
* gdb.base/long_long.exp: Likewise.
* gdb.base/ptype.exp: Likewise.
* gdb.base/scope.exp: Likewise.
* gdb.base/signals.exp: Likewise.
* gdb.base/so-impl-ld.exp: Likewise.
* gdb.base/varargs.exp: Likewise.
* gdb.base/volatile.exp: Likewise.
* gdb.base/whatis.exp: Likewise.
* gdb.cp/cplusfuncs.exp: Likewise.
* gdb.cp/inherit.exp: Likewise.
* gdb.cp/local.exp: Likewise.
* gdb.cp/member-ptr.exp: Likewise.
* gdb.cp/method.exp: Likewise.
* gdb.cp/overload.exp: Likewise.
* gdb.cp/templates.exp: Likewise.
* gdb.stabs/weird.exp: Likewise.
* lib/compiler.c: Likewise.
* lib/compiler.cc: Likewise.
* lib/cp-support.exp: Likewise.
* lib/gdb.exp: Likewise.
Yao Qi [Mon, 21 Dec 2015 13:55:45 +0000 (13:55 +0000)]
Use arm_eabi_breakpoint on aarch32
This patch is to get
b37a6290 back again, which was removed by
d9311bfa by mistake.
gdb/gdbserver:
2015-12-21 Yao Qi <yao.qi@linaro.org>
* linux-aarch32-low.h [__aarch64__]: Use arm_abi_breakpoint
arm breakpoint.
Nick Clifton [Mon, 21 Dec 2015 12:00:04 +0000 (12:00 +0000)]
Fix building pdfs of assembler documentation.
PR gas/19386
* doc/as.texinfo (Strings): Prepend a space to index entries that
start with a backslash. This works around a problem in the pdf
generator.
Joel Brobecker [Mon, 21 Dec 2015 02:51:50 +0000 (06:51 +0400)]
Minor reformatting fix in gdbtypes.c::create_array_type_with_stride
gdb/ChangeLog:
* gdbtypes.c (create_array_type_with_stride): Fix indentation.
GDB Administrator [Mon, 21 Dec 2015 00:00:08 +0000 (00:00 +0000)]
Automatic date update in version.in
Simon Marchi [Sun, 20 Dec 2015 14:59:02 +0000 (09:59 -0500)]
Remove HP-UX reference in testsuite/configure.ac
gdb/testsuite/ChangeLog:
* configure.ac: Remove HP-UX case.
* configure: Regenerate.
GDB Administrator [Sun, 20 Dec 2015 00:00:19 +0000 (00:00 +0000)]
Automatic date update in version.in
Joel Brobecker [Sat, 19 Dec 2015 03:28:41 +0000 (07:28 +0400)]
Fix ARI warning in gdb/arch/arm-get-next-pcs.c
gdb/ChangeLog:
* arch/arm-get-next-pcs.c (arm_get_next_pcs_raw): Remove trailing
newline at end of error message.
Sandra Loosemore [Sat, 19 Dec 2015 01:55:26 +0000 (17:55 -0800)]
Reset pagination counts even when stdin is not a tty.
2015-12-18 Sandra Loosemore <sandra@codesourcery.com>
gdb/
* event-top.c (command_handler): Don't require stdin to be a tty
for call to reinitialize_more_filter.
* top.c (command_loop): Likewise.
Sandra Loosemore [Sat, 19 Dec 2015 01:53:11 +0000 (17:53 -0800)]
Make prompt_for_continue call throw_quit directly.
2015-12-18 Sandra Loosemore <sandra@codesourcery.com>
gdb/
* utils.c (prompt_for_continue): Call throw_quit directly on 'q'.
GDB Administrator [Sat, 19 Dec 2015 00:00:09 +0000 (00:00 +0000)]
Automatic date update in version.in
H.J. Lu [Fri, 18 Dec 2015 22:03:43 +0000 (14:03 -0800)]
Process 64-bit imm/disp only for 64-bit BFD
We only need to store 32-bit immediate in 64-bit and optimize 64-bit
displacement to 32-bit only for 64-bit BFD.
* config/tc-i386.c (optimize_imm): Store 32-bit immediate in
64-bit only for 64-bit BFD
(optimize_disp): Optimize 64-bit displacement to 32-bit only
for 64-bit BFD.
Antoine Tremblay [Fri, 18 Dec 2015 20:23:58 +0000 (15:23 -0500)]
Cast to enum bfd_endian in arm_get_next_pcs_read_memory_unsigned_integer
This patch fixes the cxx build broken by commit :
d9311bfaf572cf14af577a66e79c51c491553552.
Pushed as obvious.
gdb/ChangeLog:
* arm-tdep.c (arm_get_next_pcs_read_memory_unsigned_integer): Cast
to enum bfd_endian)
Simon Marchi [Fri, 18 Dec 2015 18:39:26 +0000 (13:39 -0500)]
Add documentation to gdb_compile
This patch adds some documentation to gdb_compile. It describes the
various options that can influence compilation. Most of them are
handled by DejaGnu, but are not really documented anywhere, so I think
it's good to have a quick reference. Not all possible options are
described, that would add way to much noise. I chose those that I think
are relevant in the context of writing a test case.
gdb/testsuite/ChangeLog:
* lib/gdb.exp (gdb_compile): Add function doc.
Antoine Tremblay [Fri, 18 Dec 2015 16:33:59 +0000 (11:33 -0500)]
Enable conditional breakpoints for targets that support software single step in GDBServer
This patch enables support for conditional breakpoints if the target supports
software single step.
This was disabled before as the implementations of software single step were too
simple as discussed in
https://sourceware.org/ml/gdb-patches/2015-04/msg01110.html.
Since these issues are now fixed support can be added back.
New tests passing :
PASS: gdb.base/cond-eval-mode.exp: set breakpoint condition-evaluation
target and related...
No regressions, tested on ubuntu 14.04 ARMv7 and x86.
With gdbserver-{native,extended} / { -marm -mthumb }
gdb/gdbserver/ChangeLog:
* server.c (handle_query): Call target_supports_software_single_step.
Antoine Tremblay [Fri, 18 Dec 2015 16:33:59 +0000 (11:33 -0500)]
Enable software single stepping for while-stepping actions in GDBServer
This patch enables software single stepping if the targets support it,
to do while-stepping actions.
No regressions, tested on ubuntu 14.04 ARMv7 and x86.
With gdbserver-{native,extended} / { -marm -mthumb }
gdb/gdbserver/ChangeLog:
* linux-low.c (single_step): New function.
(linux_resume_one_lwp_throw): Call single_step.
(start_step_over): Likewise.
Antoine Tremblay [Fri, 18 Dec 2015 16:33:59 +0000 (11:33 -0500)]
Support software single step on ARM in GDBServer
This patch teaches GDBServer how to software single step on ARM
linux by sharing code with GDB.
The arm_get_next_pcs function in GDB is now shared with GDBServer. So
that GDBServer can use the function to return the possible addresses of
the next PC.
A proper shared context was also needed so that we could share the code,
this context is described in the arm_get_next_pcs structure.
Testing :
No regressions, tested on ubuntu 14.04 ARMv7 and x86.
With gdbserver-{native,extended} / { -marm -mthumb }
gdb/ChangeLog:
* Makefile.in (ALL_TARGET_OBS): Append arm-get-next-pcs.o,
arm-linux.o.
(ALLDEPFILES): Append arm-get-next-pcs.c, arm-linux.c
(arm-linux.o): New rule.
(arm-get-next-pcs.o): New rule.
* arch/arm-get-next-pcs.c: New file.
* arch/arm-get-next-pcs.h: New file.
* arch/arm-linux.h: New file.
* arch/arm-linux.c: New file.
* arm.c: Include common-regcache.c.
(thumb_advance_itstate): Moved from arm-tdep.c.
(arm_instruction_changes_pc): Likewise.
(thumb_instruction_changes_pc): Likewise.
(thumb2_instruction_changes_pc): Likewise.
(shifted_reg_val): Likewise.
* arm.h (submask): Move macro from arm-tdep.h
(bit): Likewise.
(bits): Likewise.
(sbits): Likewise.
(BranchDest): Likewise.
(thumb_advance_itstate): Moved declaration from arm-tdep.h
(arm_instruction_changes_pc): Likewise.
(thumb_instruction_changes_pc): Likewise.
(thumb2_instruction_changes_pc): Likewise.
(shifted_reg_val): Likewise.
* arm-linux-tdep.c: Include arch/arm.h, arch/arm-get-next-pcs.h
arch/arm-linux.h.
(arm_linux_get_next_pcs_ops): New struct.
(ARM_SIGCONTEXT_R0, ARM_UCONTEXT_SIGCONTEXT,
ARM_OLD_RT_SIGFRAME_SIGINFO, ARM_OLD_RT_SIGFRAME_UCONTEXT,
ARM_NEW_RT_SIGFRAME_UCONTEXT, ARM_NEW_SIGFRAME_MAGIC): Move stack
layout defines to arch/arm-linux.h.
(arm_linux_sigreturn_next_pc_offset): Move to arch/arm-linux.c.
(arm_linux_software_single_step): Adjust for arm_get_next_pcs
implementation.
* arm-tdep.c: Include arch/arm-get-next-pcs.h.
(arm_get_next_pcs_ops): New struct.
(submask): Move macro to arm.h.
(bit): Likewise.
(bits): Likewise.
(sbits): Likewise.
(BranchDest): Likewise.
(thumb_instruction_changes_pc): Move to arm.c
(thumb2_instruction_changes_pc): Likewise.
(arm_instruction_changes_pc): Likewise.
(shifted_reg_val): Likewise.
(thumb_advance_itstate): Likewise.
(thumb_get_next_pc_raw): Move to arm-get-next-pcs.c.
(arm_get_next_pc_raw): Likewise.
(arm_get_next_pc): Likewise.
(thumb_deal_with_atomic_sequence_raw): Likewise.
(arm_deal_with_atomic_sequence_raw): Likewise.
(arm_deal_with_atomic_sequence): Likewise.
(arm_get_next_pcs_read_memory_unsigned_integer): New function.
(arm_get_next_pcs_addr_bits_remove): Likewise.
(arm_get_next_pcs_syscall_next_pc): Likewise.
(arm_get_next_pcs_is_thumb): Likewise.
(arm_software_single_step): Adjust for arm_get_next_pcs
implementation.
* arm-tdep.h: (arm_get_next_pc): Remove declaration.
(arm_get_next_pcs_read_memory_unsigned_integer):
New declaration.
(arm_get_next_pcs_addr_bits_remove): Likewise.
(arm_get_next_pcs_syscall_next_pc): Likewise.
(arm_get_next_pcs_is_thumb): Likewise.
(arm_deal_with_atomic_sequence: Remove declaration.
* common/gdb_vecs.h: Add CORE_ADDR vector definition.
* configure.tgt (aarch64*-*-linux): Add arm-get-next-pcs.o,
arm-linux.o.
(arm*-wince-pe): Add arm-get-next-pcs.o.
(arm*-*-linux*): Add arm-get-next-pcs.o, arm-linux.o,
arm-get-next-pcs.o
(arm*-*-netbsd*,arm*-*-knetbsd*-gnu): Add arm-get-next-pcs.o.
(arm*-*-openbsd*): Likewise.
(arm*-*-symbianelf*): Likewise.
(arm*-*-*): Likewise.
* symtab.h: Move CORE_ADDR vector definition to gdb_vecs.h.
gdb/gdbserver/ChangeLog:
* Makefile.in (SFILES): Append arch/arm-linux.c,
arch/arm-get-next-pcs.c.
(arm-linux.o): New rule.
(arm-get-next-pcs.o): New rule.
* configure.srv (arm*-*-linux*): Add arm-get-next-pcs.o,
arm-linux.o.
* linux-aarch32-low.c (arm_abi_breakpoint): Remove macro. Moved
to linux-aarch32-low.c.
(arm_eabi_breakpoint, arm_breakpoint): Likewise.
(arm_breakpoint_len, thumb_breakpoint): Likewise.
(thumb_breakpoint_len, thumb2_breakpoint): Likewise.
(thumb2_breakpoint_len): Likewise.
(arm_is_thumb_mode): Make non-static.
* linux-aarch32-low.h (arm_abi_breakpoint): New macro. Moved
from linux-aarch32-low.c.
(arm_eabi_breakpoint, arm_breakpoint): Likewise.
(arm_breakpoint_len, thumb_breakpoint): Likewise.
(thumb_breakpoint_len, thumb2_breakpoint): Likewise.
(thumb2_breakpoint_len): Likewise.
(arm_is_thumb_mode): New declaration.
* linux-arm-low.c: Include arch/arm-linux.h
aarch/arm-get-next-pcs.h, sys/syscall.h.
(get_next_pcs_ops): New struct.
(get_next_pcs_addr_bits_remove): New function.
(get_next_pcs_is_thumb): New function.
(get_next_pcs_read_memory_unsigned_integer): Likewise.
(arm_sigreturn_next_pc): Likewise.
(get_next_pcs_syscall_next_pc): Likewise.
(arm_gdbserver_get_next_pcs): Likewise.
(struct linux_target_ops) <arm_gdbserver_get_next_pcs>:
Initialize.
* linux-low.h: Move CORE_ADDR vector definition to gdb_vecs.h.
* server.h: Include gdb_vecs.h.
Antoine Tremblay [Fri, 18 Dec 2015 16:33:59 +0000 (11:33 -0500)]
Share regcache function regcache_raw_read_unsigned
This patch is in preparation for software single step support on ARM in
GDBServer. It adds a new shared function regcache_raw_read_unsigned and
regcache_raw_get_unsigned so that GDB and GDBServer can use the same call
to fetch a raw register into an integer.
No regressions, tested on ubuntu 14.04 ARMv7 and x86.
With gdbserver-{native,extended} / { -marm -mthumb }
gdb/ChangeLog:
* Makefile.in (SFILES): Append common/common-regcache.c.
(COMMON_OBS): Append common/common-regcache.o.
(common-regcache.o): New rule.
* common/common-regcache.h (register_status) New enum.
(regcache_raw_read_unsigned): New declaration.
* common/common-regcache.c: New file.
* regcache.h (enum register_status): Move to common-regcache.h.
(regcache_raw_read_unsigned): Likewise.
(regcache_raw_get_unsigned): Likewise.
gdb/gdbserver/ChangeLog:
* Makefile.in (SFILES): Append common/common-regcache.c.
(OBS): Append common-regcache.o.
(common-regcache.o): New rule.
* regcache.c (init_register_cache): Initialize cache to
REG_UNAVAILABLE.
(regcache_raw_read_unsigned): New function.
* regcache.h (REG_UNAVAILABLE, REG_VALID): Replaced by shared
register_status enum.
Antoine Tremblay [Fri, 18 Dec 2015 16:33:59 +0000 (11:33 -0500)]
Refactor arm_software_single_step to use regcache
This patch is in preparation for software single step support on ARM in
GDBServer. It refactors arm_*_software_single_step and sub-functions to
use regcache instead of frame to access registers so that the code can be
shared more easily between GDB and GDBServer.
Note also that since the intention is at some point to get rid of frame
completely in that function, memory reads have also been replaced by
read_memory_unsigned_integer rather than get_frame_memory_unsigned.
No regressions, tested on ubuntu 14.04 ARMv7 and x86.
With gdbserver-{native,extended} / { -marm -mthumb }
gdb/ChangeLog:
* arm-linux-tdep.c (arm_linux_sigreturn_next_pc_offset): New function.
(arm_linux_sigreturn_next_pc): Likewise.
(arm_linux_syscall_next_pc): Use regcache instead of frame.
(arm_linux_software_single_step): Likewise.
* arm-tdep.c (arm_is_thumb): New function.
(shifted_reg_va): Use regcache instead of frame.
(thumb_get_next_pc_raw): Likewise.
(arm_get_next_pc_raw): Likewise.
(arm_get_next_pc): Likewise.
(thumb_deal_with_atomic_sequence_raw): Likewise.
(arm_deal_with_atomic_sequence_raw): Likewise.
(arm_deal_with_atomic_sequence): Likewise.
(arm_software_single_step): Likewise.
* arm-tdep.h (struct gdbarch_tdep): Use regcache for syscall_next_pc.
(arm_get_next_pc): Use regcache.
(arm_deal_with_atomic_sequence): Likewise.
(arm_is_thumb): New declaration.
* regcache.c (regcache_raw_get_unsigned): New function.
* regcache.h (regcache_raw_get_unsigned): New function declaration.
Antoine Tremblay [Fri, 18 Dec 2015 16:33:58 +0000 (11:33 -0500)]
Share some ARM target dependent code from GDB with GDBServer
This patch is in preparation for software single stepping support on ARM
it shares some functions and definitions that will be needed.
No regressions, tested on ubuntu 14.04 ARMv7 and x86.
With gdbserver-{native,extended} / { -marm -mthumb }
Not tested: wince/bsd build.
gdb/ChangeLog:
* arch/arm.c (bitcount): Move from arm-tdep.c.
(condition_true): Likewise.
* arch/arm.h (Instruction Definitions): Move form arm-tdep.h.
(condition_true): Move defenition from arm-tdep.h.
(bitcount): Likewise.
* arm-tdep.c (condition_true): Move to arch/arm.c.
(bitcount): Likewise.
* arm-tdep.h (Instruction Definitions): Move to arch/arm.h.
* arm-wince-tdep.c: Include arch/arm.h.
* armnbsd-tdep.c: Likewise.
Antoine Tremblay [Fri, 18 Dec 2015 16:33:58 +0000 (11:33 -0500)]
Replace breakpoint_reinsert_addr by get_next_pcs operation in GDBServer
This patch in preparation for software single step support on ARM. It refactors
breakpoint_reinsert_addr into get_next_pcs so that multiple location can be
returned.
When software single stepping there can be multiple possible next addresses
because we're stepping over a conditional branch instruction, for example.
The operation get_next_pcs handles that by returning a vector of all the
possible next addresses.
Software breakpoints are installed at each location returned.
No regressions, tested on ubuntu 14.04 ARMv7 and x86.
With gdbserver-{native,extended} / { -marm -mthumb }
gdb/gdbserver/ChangeLog:
* linux-aarch64-low.c (the_low_targets): Rename
breakpoint_reinsert_addr to get_next_pcs.
* linux-arm-low.c (the_low_targets): Likewise.
* linux-bfin-low.c (the_low_targets): Likewise.
* linux-cris-low.c (the_low_targets): Likewise.
* linux-crisv32-low.c (the_low_targets): Likewise.
* linux-low.c (can_software_single_step): Likewise.
(install_software_single_step_breakpoints): New function.
(start_step_over): Use install_software_single_step_breakpoints.
* linux-low.h: New CORE_ADDR vector.
(struct linux_target_ops) Rename breakpoint_reinsert_addr to
get_next_pcs.
* linux-mips-low.c (the_low_targets): Likewise.
* linux-nios2-low.c (the_low_targets): Likewise.
* linux-sparc-low.c (the_low_targets): Likewise.
H.J. Lu [Fri, 18 Dec 2015 16:15:27 +0000 (08:15 -0800)]
Fix formatting in coff-x86_64.c
* coff-x86_64.c (coff_amd64_reloc): Fix formatting.
Nick Clifton [Fri, 18 Dec 2015 08:49:02 +0000 (08:49 +0000)]
Fix formatting of coff-i386.c
* coff-i386.c (coff_i386_reloc): Fix formatting.
Peter Collingbourne [Fri, 18 Dec 2015 00:50:35 +0000 (16:50 -0800)]
Implement --long-plt flag (ARM only).
gold/
PR gold/18780
* arm.cc (Target_arm::do_make_data_plt): Choose PLT generator based
on value of --long-plt flag.
(Output_data_plt_arm_standard::do_get_plt_entry_size): Moved to
Output_data_plt_arm_short.
(Output_data_plt_arm_standard::do_fill_plt_entry): Likewise.
(Output_data_plt_arm_standard::plt_entry): Likewise.
(Output_data_plt_arm_standard::do_fill_first_plt_entry): Fix
variable reference.
(Output_data_plt_arm_short): New class.
(Output_data_plt_arm_short::do_fill_plt_entry): Error out on too large
PLT offsets instead of asserting.
(Output_data_plt_arm_long): New class.
* options.h (General_options): Define --long-plt flag.
GDB Administrator [Fri, 18 Dec 2015 00:00:08 +0000 (00:00 +0000)]
Automatic date update in version.in