Lulu Cai [Tue, 31 Oct 2023 08:11:29 +0000 (16:11 +0800)]
LoongArch: Add new relocs and macro for TLSDESC.
The normal DESC instruction sequence is:
pcalau12i $a0,%desc_pc_hi20(var) #R_LARCH_TLS_DESC_PC_HI20
addi.d $a0,$a0,%desc_pc_lo12(var) #R_LARCH_TLS_DESC_PC_LO12
ld.d $ra,$a0,%desc_ld(var) #R_LARCH_TLS_DESC_LD
jirl $ra,$ra,%desc_call(var) #R_LARCH_TLS_DESC_CALL
add.d $a0,$a0,$tp
GDB Administrator [Mon, 25 Dec 2023 00:00:25 +0000 (00:00 +0000)]
Automatic date update in version.in
Alan Modra [Sun, 24 Dec 2023 04:11:06 +0000 (14:41 +1030)]
Re: LoongArch: Add support for <b ".L1"> and <beq, $t0, $t1, ".L1">
This fixes the buffer overflow added in commit
22b78fad28, and a few
other problems.
* loongarch-coder.c (loongarch_split_args_by_comma): Don't
overflow buffer when args == "". Don't remove unbalanced
quotes. Don't trim last arg if max number of args exceeded.
Simon Marchi [Thu, 21 Dec 2023 16:51:38 +0000 (16:51 +0000)]
gdb: make value::allocate_register_lazy store id of next non-inline frame
Some spots loop on the frame chain to find the first next non-inline
frame, and pass that as the "next frame" to
value::allocate_register_lazy / value::allocate_register. This is
necessary if the value is used in the process of computing the id of
"this frame". If the frame next to "this frame" is inlined into "this
frame", then you that next frame won't have a computed id yet. You have
to go past that to find the next non-inline frame, which will have a
computed id.
In other cases, it's fine to store the id of an inline frame as the
"next frame id" in a register struct value. When trying to unwind a
register from it, it will just call inline_frame_prev_register, which
will forward the request to the next next frame, until we hit the next
physical frame.
I think it would make things simpler to just never store the id of an
inline frame as the next frame id of register struct values, and go with
the first next non-inline frame directly. This way, we don't have to
wonder which code paths have to skip inline frames when creating
register values and which don't.
So, change value::allocate_register_lazy to do that work, and remove the
loops for the callers that did it.
Change-Id: Ic88115dac49dc14e3053c95f92050062b24b7310
Simon Marchi [Sun, 24 Dec 2023 15:38:35 +0000 (10:38 -0500)]
gdb: remove VALUE_REGNUM, add value::regnum
Remove VALUE_REGNUM, replace it with a method on struct value. Set
`m_location.reg.regnum` directly from value::allocate_register_lazy,
which is fine because allocate_register_lazy is a static creation
function for struct value.
Change-Id: Id632502357da971617d9dce1e2eab9b56dbcf52d
Simon Marchi [Wed, 20 Dec 2023 21:40:46 +0000 (21:40 +0000)]
gdb: remove VALUE_NEXT_FRAME_ID, add value::next_frame_id
Remove VALUE_NEXT_FRAME_ID, replace it with a method on struct value. Set
`m_location.reg.next_frame_id` directly from value::allocate_register_lazy,
which is fine because allocate_register_lazy is a static creation
function for struct value.
Change-Id: Ic9f0f239c166a88dccfee836f9f51871e67548e6
Simon Marchi [Thu, 21 Dec 2023 16:32:55 +0000 (16:32 +0000)]
gdb: implement address_from_register using value_from_register
As explained in the comment removed by the previous commit "gdb: pass
non-nullptr frame to gdbarch_value_from_register in
address_from_register", address_from_register copies some implementation
bits from value_from_register:
/* This routine may be called during early unwinding, at a time
where the ID of FRAME is not yet known. Calling value_from_register
would therefore abort in get_frame_id. However, since we only need
a temporary value that is never used as lvalue, we actually do not
really need to set its VALUE_NEXT_FRAME_ID. Therefore, we re-implement
the core of value_from_register, but use the null_frame_id. */
This is no longer relevant, since we now create a value with a valid next
frame id, so change address_from_register to use value_from_register.
Change-Id: I189bd96f28735ed9f47750ffd73764c459ec6f43
Simon Marchi [Thu, 21 Dec 2023 16:28:19 +0000 (16:28 +0000)]
gdb: remove read_frame_register_value's frame parameter
By now, all register struct values should have a valid next frame id
(assuming they are created using value::allocate_register or
value::allocate_register_lazy), so there should be no need to pass a
frame alongside the value to read_frame_register_value. Remove the
frame parameter and adjust read_frame_register_value accordingly.
While at it, make read_frame_register_value static, it's only used in
findvar.c.
Change-Id: I118959ef8c628499297c67810916e8ba9934bfac
Simon Marchi [Thu, 21 Dec 2023 16:21:52 +0000 (16:21 +0000)]
gdb: add type parameter to value::allocate_register and add value::allocate_register_lazy
Some places that create register struct values don't use register_type
to obtain the value type. This prevents them from using the current
version of value::allocate_register. One spot (value_of_register_lazy)
also creates a lazy register value.
Add a value::allocate_register_lazy method. Add some type parameters
to value::allocate_register and value::allocate_register_lazy, to let
the caller specify the type to use for the value. The parameters
default to nullptr, in which case we use register_type to obtain the
type.
Change-Id: I640ec0a5a0f4a55eba12d515dbfd25933229f8ec
Simon Marchi [Thu, 21 Dec 2023 16:10:17 +0000 (16:10 +0000)]
gdb: pass non-nullptr frame to gdbarch_value_from_register in address_from_register
address_from_register used to pass null_frame_id to
gdbarch_value_from_register as "this frame"'s id, because it's possible
for it to be called during unwind, when "this frame"'s id is not yet
known. This create an oddity where those register struct values are
created without a valid next frame id. I would much prefer for things
to be consistent and have all register struct values to have a valid
next frame id.
Since gdbarch_value_from_register takes a frame_info_ptr now, rather
than a frame_id, we can pass down "this frame", even if it doesn't have
a valid id. gdbarch_value_from_register implementations can obtain the
next frame from it.
However, it's possible for the "this frame"'s next frame to be an
inline frame, inlined in "this frame", in which case that next frame's
id is also not known. So, loop until we get to the next non-inline
frame (which is actually the frame where registers for "this frame" are
unwound from). This is the same thing that we do in
value_of_register_lazy, for the same reason. A later patch will factor
out this "while next frame is inline" loop to apply it to all register
struct values, so this is somewhat temporary.
Change-Id: If487c82620cc5a4a4ea5807f0a0bad80ab984078
Simon Marchi [Thu, 21 Dec 2023 16:03:02 +0000 (16:03 +0000)]
gdb: pass frame_info_ptr to gdbarch_value_from_register
Pass a frame_info_ptr rather than a frame_id. This avoids having to do
a frame lookup on the callee side, when we can just pass the frame down
directly.
I think this fixes a bug in rs6000-tdep.c where the id of the wrong
frame was set to `VALUE_NEXT_FRAME_ID (v)`.
Change-Id: I77039bc87ea8fc5262f16d0e1446515efa21c565
Simon Marchi [Wed, 20 Dec 2023 18:18:47 +0000 (18:18 +0000)]
gdb: don't set frame id after calling cooked_read_value
I don't think that setting the next frame id is needed there, all code
paths in cooked_read_value do set it properly, AFAIK.
Change-Id: Idb9d9e6f89c2c95c5ebfeec2a63fde89ed84cf3d
Mike Frysinger [Sun, 24 Dec 2023 10:26:44 +0000 (05:26 -0500)]
sim: cris: rvdummy: delete unused variable
Mike Frysinger [Sun, 24 Dec 2023 10:06:57 +0000 (05:06 -0500)]
sim: cgen: mark cgen_rtx_error noreturn
Since this function never returns, mark it as such to fix some unused
variable warnings in error code paths.
For example, cris triggers:
sim/cris/semcrisv10f-switch.c:3558:11: error:
variable 'tmp_newval' is used uninitialized whenever 'if' condition is false [-Werror,-Wsometimes-uninitialized]
Even though it has an "else" path that calls this error function.
Mike Frysinger [Sun, 24 Dec 2023 09:07:32 +0000 (04:07 -0500)]
sim: cgen: regenerate decode tables
Integrate some changes from upstream cgen that tightened up the
generated output. Shouldn't be any functional changes here.
Mike Frysinger [Sun, 24 Dec 2023 08:59:02 +0000 (03:59 -0500)]
sim: sh: refine pwsb & pwad nops
Since these insns don't do anything and are effectively ignored,
return early to avoid doing any common processing at the end as
that requires initializing variables like "res" with something.
Mike Frysinger [Sun, 24 Dec 2023 08:53:03 +0000 (03:53 -0500)]
sim: sh: fix plds Dz,MACL implementation
The plds Dz,MACL insn stores the Dz bit into MACL. The current code
was storing the "res" variable into Dz and then into MACL, but not
setting "res" to anything. Delete that logic and make it match the
existing plds Dz,MACH insn.
GDB Administrator [Sun, 24 Dec 2023 00:00:11 +0000 (00:00 +0000)]
Automatic date update in version.in
Mike Frysinger [Sat, 23 Dec 2023 06:00:08 +0000 (01:00 -0500)]
sim: warnings: rework individual flag disable into dedicated vars
The -Wshadow=local is too new for some compilers, so move it to a var
that we test at configure time.
Vladimir Mezentsev [Fri, 22 Dec 2023 05:33:58 +0000 (21:33 -0800)]
gprofng: fix build problems on linux-musl
ino64_t, off64_t, fpos64_t, stat64, __u64 are not defined on linux-musl.
Fixed by declaring these types for linux-musl.
2023-12-21 Vladimir Mezentsev <vladimir.mezentsev@oracle.com>
PR gprofng/30779
PR gprofng/29593
* common/gp-defs.h: Define ino64_t, off64_t, fpos64_t for linux-musl.
* libcollector/unwind.c: Define __u64 for linux-musl.
* src/util.h: Define dbe_stat_t.
* src/ClassFile.cc: Use dbe_stat_t instead of "struct stat64".
* src/Dbe.cc: Likewise.
* src/DbeFile.cc: Likewise.
* src/DbeFile.h: Likewise.
* src/DbeSession.cc: Likewise.
* src/Experiment.cc: Likewise.
* src/checks.cc: Likewise.
* src/util.cc: Likewise.
Mike Frysinger [Fri, 22 Dec 2023 01:14:34 +0000 (20:14 -0500)]
sim: sh: fix -Wshadow=local warnings
Rename the var to avoid shadowing & clobbering the higher context.
Mike Frysinger [Fri, 22 Dec 2023 01:13:56 +0000 (20:13 -0500)]
sim: riscv: fix -Wshadow=local warnings
Inline the one usage of sd in these macros to avoid possible shadowing.
Mike Frysinger [Fri, 22 Dec 2023 01:13:19 +0000 (20:13 -0500)]
sim: ppc: fix -Wshadow=local warnings
Use a local name in the macro to avoid shadowing wherever it's used.
Mike Frysinger [Fri, 22 Dec 2023 01:12:59 +0000 (20:12 -0500)]
sim: mips: fix -Wshadow=local warnings
Delete redundant decls when the existing scope has the same var and
type available for use.
Mike Frysinger [Fri, 22 Dec 2023 01:12:25 +0000 (20:12 -0500)]
sim: m68hc11: fix -Wshadow=local warnings
Delete redundant decls when the existing scope has the same var and
type available for use.
Mike Frysinger [Fri, 22 Dec 2023 23:05:50 +0000 (18:05 -0500)]
sim: m32c: fix -Wshadow=local warnings
These decoders declare a lot of common variables for use by substeps,
and then shadows a few because of how the opc generator is implemented.
Easiest way around it is to rename the per-substep vars as needed as
anything more would require substantial changes to the opc logic.
Mike Frysinger [Fri, 22 Dec 2023 01:10:58 +0000 (20:10 -0500)]
sim: iq2000: fix -Wshadow=local warnings
Delete redundant decls.
Mike Frysinger [Fri, 22 Dec 2023 01:10:20 +0000 (20:10 -0500)]
sim: h8300: fix -Wshadow=local warnings
Delete conflicting decls when the existing scope has vars of the same
name & type for this exact use.
Mike Frysinger [Fri, 22 Dec 2023 01:09:50 +0000 (20:09 -0500)]
sim: frv: fix -Wshadow=local warnings
Delete redundant decls, and rename conflicting vars.
Mike Frysinger [Fri, 22 Dec 2023 01:09:00 +0000 (20:09 -0500)]
sim: erc32: fix -Wshadow=local warnings
Rename shadowed vars with different types to avoid confusion.
Mike Frysinger [Sat, 23 Dec 2023 04:17:45 +0000 (23:17 -0500)]
sim: cris: disable -Wshadow=local in generated mloop files
The mloop files include CGEN generated switch files which have some
nested assignments that expand into repeated shadowed variables.
Fixing this looks fairly non-trivial as it appears to be interplay
between the common CGEN code and how this particular set of cris
insns are defined. Disable the warning instead.
In file included from sim/cris/mloop.in:286:
sim/cris/semcrisv10f-switch.c: In function ‘crisv10f_engine_run_full’:
sim/cris/semcrisv10f-switch.c:12383:8: error: declaration of ‘opval’ shadows a previous local [-Werror=shadow=local]
12383 | SI opval = tmp_addr;
| ^~~~~
sim/cris/semcrisv10f-switch.c:12371:9: note: shadowed declaration is here
12371 | USI opval = ({ SI tmp_addr;
| ^~~~~
And the code looks like:
USI opval = ({
...
{
SI opval = tmp_addr;
...
}
...
});
Since the CGEN code treats "opval" as an internal variable that the cpu
definitions don't have direct access to, the likelihood of this being a
real bug is low, so leave it be. The warning is suppressed for more code
that is hand written (e.g. the mloop logic), but disabling for the entire
file is the easiest way to suppress while keeping it on everywhere else in
the sim.
Mike Frysinger [Fri, 22 Dec 2023 01:08:35 +0000 (20:08 -0500)]
sim: cris: fix -Wshadow=local warnings
Delete redundant local decls.
Mike Frysinger [Fri, 22 Dec 2023 01:07:48 +0000 (20:07 -0500)]
sim: common: fix -Wshadow=local warnings
Rename shadowed vars with different types, and delete redundant decls.
Mike Frysinger [Fri, 22 Dec 2023 01:07:00 +0000 (20:07 -0500)]
sim: bfin: fix -Wshadow=local warnings
Rename the shadowed var to avoid confusion with the function argument
as to which address this code is using.
Mike Frysinger [Fri, 22 Dec 2023 01:03:41 +0000 (20:03 -0500)]
sim: arm: fix -Wshadow=local warnings
Remove duplicate nested variable declarations, rename some to avoid
confusion when the type is different or the original value should be
retained, and fix some weirdness with nested enums in structs.
Mike Frysinger [Fri, 22 Dec 2023 01:01:31 +0000 (20:01 -0500)]
sim: aarch64: fix -Wshadow=local warnings
These functions have local vars named "val" of type float, and
then create nested vars named "val" of type double. This is a
bit confusing and causes build time warnings.
GDB Administrator [Sat, 23 Dec 2023 00:00:21 +0000 (00:00 +0000)]
Automatic date update in version.in
Tom Tromey [Tue, 12 Dec 2023 15:20:31 +0000 (08:20 -0700)]
Check for rogue DAP exceptions in test suite
This changes the test suite to look for rogue DAP exceptions in the
log file, and issue a "fail" if one is found.
Reviewed-By: Kévin Le Gouguec <legouguec@adacore.com>
Tom Tromey [Tue, 12 Dec 2023 17:09:55 +0000 (10:09 -0700)]
Avoid exception from attach in DAP
I noticed that the DAP attach test case (and similarly
remoted-dap.exp) had a rogue exception stack trace in the log. It
turns out that an attach will generate a stop that does not have a
reason.
This patch fixes the problem in the _on_stop event listener by making
it a bit more careful when examining the event reason. It also adds
some machinery so that attach stops can be suppressed, which I think
is the right thing to do.
Reviewed-By: Kévin Le Gouguec <legouguec@adacore.com>
Tom Tromey [Tue, 12 Dec 2023 16:30:41 +0000 (09:30 -0700)]
Add DAP log level parameter
This adds a new parameter to control the DAP logging level. By
default, "expected" exceptions are not logged, but the parameter lets
the user change this when more logging is desired.
This also changes a couple of spots to avoid logging the stack trace
for a DAPException.
This patch also documents the existing DAP logging parameter. I
forgot to document this before.
Reviewed-By: Eli Zaretskii <eliz@gnu.org>
Reviewed-By: Kévin Le Gouguec <legouguec@adacore.com>
Tom Tromey [Tue, 12 Dec 2023 16:29:43 +0000 (09:29 -0700)]
Introduce and use DAPException
This introduces a new DAPException class, and then changes various
spots in the DAP implementation to wrap "expected" exceptions in this.
This class will help detect rogue exceptions caused by bugs in the
implementation.
Reviewed-By: Kévin Le Gouguec <legouguec@adacore.com>
Tom Tromey [Mon, 11 Dec 2023 17:04:23 +0000 (10:04 -0700)]
Fix build with clang 16
clang 16 reports a missing declaration in new-op.cc. We believed
these operators to be declared starting with C++14, but apparently
that is not the case.
This patch reverts the earlier change and then updates the comment to
reflect the current state.
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=31141
Kévin Le Gouguec [Fri, 22 Dec 2023 13:06:15 +0000 (14:06 +0100)]
gdb: fix refactoring hiccup in rs6000_register_to_value
In 2023-12-14 "gdb: make get_frame_register_bytes take the next frame"
(
9fc79b42369), *_register_to_value functions were made to (a) call
get_next_frame_sentinel_okay (frame) (b) pass that next frame to
get_frame_register_bytes.
Step (b) was omitted for rs6000-tdep.c; this manifests as a regression on
PPC platforms for e.g. O2_float_param: instead of seeing…
Temporary breakpoint 1, callee.increment (val=val@entry=99.0, msg=...) at callee.adb:19
… we get "optimized_out" for val. Passing next_frame to
get_frame_register_bytes fixes the issue.
Approved-By: Simon Marchi <simon.marchi@efficios.com>
Tom Tromey [Thu, 7 Dec 2023 16:51:52 +0000 (09:51 -0700)]
Add 'program' to DAP 'attach' request
In many cases, it's not possible for gdb to discover the executable
when a DAP 'attach' request is used. This patch lets the IDE supply
this information.
Reviewed-By: Eli Zaretskii <eliz@gnu.org>
Mike Frysinger [Fri, 22 Dec 2023 15:53:49 +0000 (10:53 -0500)]
sim: cgen: regenerate decode tables to avoid shadow warnings
Use latest cgen to regenerate the decode tables which has some shadow
warning fixes with "val" variables.
Mike Frysinger [Thu, 21 Dec 2023 04:29:16 +0000 (23:29 -0500)]
sim: cris: regen cgen decoders to fix build warnings [PR sim/31181]
Bug: https://sourceware.org/PR31181
Guinevere Larsen [Tue, 16 May 2023 14:25:53 +0000 (16:25 +0200)]
gdb: add git trailer information on gdb/MAINTAINERS
The project has been using Tested-By (tb), Reviewed-By (rb) and
Approved-By (ab) for some time, but there has been no information to be
found in the actual repository. This commit changes that by adding
information about all git trailers to the MAINTAINERS file, so that it
can be easily double-checked. Simply put, the trailers in use work as
follows:
* Tested-by: The person tested the patch and it fixes the problem, or
introduces no regressions (or both).
* Acked-by: The general outline looks good, but the maintainer hasn't
looked at the code
* Reviewed-by: The code looks good, but the reviewer has not approved
the patch to go upstream
* Approved-by: The patch is ready to be pushed to master
These last 3 trailers can also be restricted to one or more areas of GDB
by adding the areas in a comma separated list in parenthesis after the
trailers.
Finally, for completeness sake, the trailers Co-Authored-By and Bug
were added, even though they have been in use for a long time already
Reviewed-By: Kevin Buettner <kevinb@redhat.com>
Reviewed-By: Luis Machado <luis.machado@arm.com>
Approved-By: John Baldwin <jhb@FreeBSD.org>
Jan Beulich [Fri, 22 Dec 2023 08:36:13 +0000 (09:36 +0100)]
nios2: fix .text/.data interaction with .previous
Just like obj_elf_section() is called for .section, obj_elf_{text,data}()
need calling for .text/.data.
Jan Beulich [Fri, 22 Dec 2023 08:35:52 +0000 (09:35 +0100)]
hppa/ELF: fix .text/.data interaction with .previous
For some ELF targets .text/.data are overridden. In that case
obj_elf_{text,data}() need calling, just like .code vectors to that
function for the remaining ELF targets.
While there also hand on the function arguments, even if right now
they're meaningless. This matches what other targets' code does.
Jan Beulich [Fri, 22 Dec 2023 08:35:02 +0000 (09:35 +0100)]
RISC-V: drop .bss override
It doesn't look to be a good idea to override the custom handler that
ELF has; afaict doing so broke .previous, and a sub-section specifier
wasn't accepted either.
Jan Beulich [Fri, 22 Dec 2023 08:34:10 +0000 (09:34 +0100)]
x86-64: refuse "high" 8-bit regs with .insn and VEX/XOP/EVEX encodings
Much like REX, those encodings - if permitting 8-bit regs at all, i.e.
only starting with APX - permit use of "new" 8-bit registers only. %ah,
%ch, %dh, and %bh cannot be encoded and hence should be rejected.
Permit their use outside of 64-bit code though, as "new" registers
simply don't exist there.
Jan Beulich [Fri, 22 Dec 2023 08:33:12 +0000 (09:33 +0100)]
x86: properly respect rex/{rex}
This addresses two issues: For one, a user specified "rex" did not cause
the diagnostic to trigger when there was no other need for a REX prefix;
instead, another than the specified insn+operands was encoded. And then
(which is what this started from) .insn didn't respect {rex} (and was
otherwise similarly flawed as ordinary insns).
The latter requires splitting out code from md_assemble(), for it to
become re-usable. Besides the addition to address the first issue, that
code then also needs generalizing to account for immediate operands, as
with .insn we can't make assumptions anymore on all respective templates
having at most two operands (we still can build upon there being at most
two non-immediate operands, though). While moving the code also simplify
the first if(), by folding redundant checks.
In the new testcase also test a few more things which afaics weren't
tested till now.
mengqinggang [Fri, 8 Dec 2023 07:15:50 +0000 (15:15 +0800)]
LoongArch: Add support for the third expression of .align for R_LARCH_ALIGN
If the symbol index is not zero, the addend is used to represent
the first and the third expressions of the .align.
The lowest 8 bits are used to represent the first expression.
Other bits are used to represent the third expression.
The addend of R_LARCH_ALIGN for ".align 5, ,4" is 0x405.
The addend of R_LARCH_ALIGN for ".balign 32, ,4" is 0x405.
Mike Frysinger [Fri, 22 Dec 2023 02:04:44 +0000 (21:04 -0500)]
sim: ppc: igen: fix -G handling
We weren't using the enable_p flag to see whether the option should
be enabled or disabled, and we weren't breaking out when done parsing.
Mike Frysinger [Fri, 22 Dec 2023 01:59:04 +0000 (20:59 -0500)]
sim: warnings: enable -Wreturn-type
Older versions of gcc support this warning flag. We're already clean.
Mike Frysinger [Fri, 22 Dec 2023 01:58:51 +0000 (20:58 -0500)]
sim: warnings: fix -Wreturn-mismatch typo
Mike Frysinger [Fri, 22 Dec 2023 01:11:34 +0000 (20:11 -0500)]
sim: m32c: fix initial #line number in generated code
This emits #line 2 for the first line in the output when it should be 1.
Mike Frysinger [Wed, 20 Dec 2023 01:13:22 +0000 (20:13 -0500)]
sim: mloop: add #line pragmas everywhere
This will make compiler diagnostics much better with generated code
so people can understand the original source file.
Mike Frysinger [Wed, 20 Dec 2023 01:04:34 +0000 (20:04 -0500)]
sim: common: add $LINENO rewriting support to genmloop scripts
The generated mloop files can trigger compile time warnings. It can
be difficult to see/understand where the original code is coming from
as all the diagnostics point to the generated output. Using #line
pragmas, we can point people to the original source files.
Unfortunately, this code is written in POSIX shell, and that lacks
support for line number tracking. The $LINENO variable, even when
available, can just be plain wrong. For example, when using dash
and subshells, $LINENO can end up having negative values. Add a
wrapper script that will uses awk to rewrite the $LINENO variable
to the right value to avoid all that.
Basically lineno.sh takes an input script, rewrites all uses of
$LINENO into the actual line number (and $0 into the original file
name), and then executes the temporary script.
This commit doesn't actually add #line pragmas to any files. That
comes next.
GDB Administrator [Fri, 22 Dec 2023 00:00:19 +0000 (00:00 +0000)]
Automatic date update in version.in
Tom Tromey [Fri, 8 Dec 2023 17:32:07 +0000 (10:32 -0700)]
Rename TUI locator window -> status
The TUI status window is called the "locator" in the source, but
"status" in the documentation. Whenever I've needed to find the code,
I've had to search to "locate" it (ha, ha). This patch renames the
window to match the public name of the window.
Tom Tromey [Fri, 8 Dec 2023 17:14:41 +0000 (10:14 -0700)]
Rename tui-stack -> tui-status
The TUI status line is called the "status" window in the
documentation, but not in the source. There, the relevant files are
named "tui-stack", which to me makes it sound like they have something
to do with backtraces. This patch renames them to "tui-status".
Rainer Orth [Thu, 21 Dec 2023 11:51:26 +0000 (12:51 +0100)]
ld: Add lib32 directories for 32-bit emulation on FreeBSD/amd64
GNU ld currently fails to link 32-bit executables on FreeBSD/amd64 when
the linked libraries have dependencies on shared objects themselves:
$ gcc -m32 -o ei ei.c -lexecinfo
/var/gcc/binutils/amd64/lib/gcc/amd64-pc-freebsd14.0/13.2.0/../../../../amd64-pc-freebsd14.0/bin/ld:
warning: libelf.so.2, needed by /usr/lib/../lib32/libexecinfo.so, not found
(try using -rpath or -rpath-link)
/var/gcc/binutils/amd64/lib/gcc/amd64-pc-freebsd14.0/13.2.0/../../../../amd64-pc-freebsd14.0/bin/ld:
/usr/lib/../lib32/libexecinfo.so: undefined reference to `elf_begin@R1.0'
[...]
Fixed by handling FreeBSD/amd64 like Linux/x86.
Tested on amd64-pc-freebsd14.0.
Pedro Alves [Thu, 21 Dec 2023 10:43:20 +0000 (10:43 +0000)]
Fix Clang build issue with flexible array member and non-trivial dtor
Commit
d5cebea18e7a ("Make cached_reg_t own its data") added a
destructor to cached_reg_t.
That caused a build problem with Clang, which errors out like so:
> CXX python/py-unwind.o
> gdb/python/py-unwind.c:126:16: error: flexible array member 'reg' of type 'cached_reg_t[]' with non-trivial destruction
> 126 | cached_reg_t reg[];
> | ^
This is is not really a problem for our code, which allocates the
whole structure with xmalloc, and then initializes the array elements
with in-place new, and then takes care to call the destructor
manually. Like, commit
d5cebea18e7a did:
@@ -928,7 +927,7 @@ pyuw_dealloc_cache (frame_info *this_frame, void *cache)
cached_frame_info *cached_frame = (cached_frame_info *) cache;
for (int i = 0; i < cached_frame->reg_count; i++)
- xfree (cached_frame->reg[i].data);
+ cached_frame->reg[i].~cached_reg_t ();
Maybe we should get rid of the flexible array member and use a bog
standard std::vector. I doubt this would cause any visible
performance issue.
Meanwhile, to unbreak the build, this commit switches from C99-style
flexible array member to 0-length array. It behaves the same, and
Clang doesn't complain. I got the idea from here:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70932#c11
GCC 9, our oldest support version, already supported this:
https://gcc.gnu.org/onlinedocs/gcc-9.1.0/gcc/Zero-Length.html
but the extension is actually much older than that. Note that
C99-style flexible array members are not standard C++ either.
Change-Id: I37dda18f367e238a41d610619935b2a0f2acacce
Mike Frysinger [Thu, 21 Dec 2023 06:40:10 +0000 (01:40 -0500)]
sim: warnings: enable -Wimplicit-fallthrough=5
It caught some legitimate bugs, so clearly it's helpful.
Mike Frysinger [Thu, 21 Dec 2023 06:39:26 +0000 (01:39 -0500)]
sim: sh: fix -Wimplicit-fallthrough warnings
These generate conditional insns where it tests, then fallsthru.
Mike Frysinger [Thu, 21 Dec 2023 06:38:33 +0000 (01:38 -0500)]
sim: rx: fix -Wimplicit-fallthrough warnings
Replace some fall through comments with the attribute.
Mike Frysinger [Thu, 21 Dec 2023 06:35:57 +0000 (01:35 -0500)]
sim: rl78: fix -Wimplicit-fallthrough warnings
Seems like this code was meant to fallthru.
Mike Frysinger [Thu, 21 Dec 2023 06:35:41 +0000 (01:35 -0500)]
sim: riscv: fix -Wimplicit-fallthrough warnings
Mike Frysinger [Thu, 21 Dec 2023 06:35:29 +0000 (01:35 -0500)]
sim: ppc: fix -Wimplicit-fallthrough warnings
Replace some fall through comments with the attribute.
Mike Frysinger [Thu, 21 Dec 2023 06:35:14 +0000 (01:35 -0500)]
sim: or1k: fix -Wimplicit-fallthrough warnings
Replace some fall through comments with the attribute.
Mike Frysinger [Thu, 21 Dec 2023 06:34:54 +0000 (01:34 -0500)]
sim: mips: fix -Wimplicit-fallthrough warnings
Seems like these cases were meant to fallthru.
Mike Frysinger [Thu, 21 Dec 2023 06:34:13 +0000 (01:34 -0500)]
sim: mcore: fix Wimplicit-fallthrough warnings
Seems like these decodes were intended to fallthru.
Mike Frysinger [Thu, 21 Dec 2023 06:33:32 +0000 (01:33 -0500)]
sim: m68hc11: fix -Wimplicit-fallthrough warnings
Seems like these register operations intended on falling thru.
Mike Frysinger [Thu, 21 Dec 2023 06:32:22 +0000 (01:32 -0500)]
sim: frv: fix -Wimplicit-fallthrough warnings
Replace some fall through comments with the attribute.
Mike Frysinger [Thu, 21 Dec 2023 06:31:38 +0000 (01:31 -0500)]
sim: erc32: fix -Wimplicit-fallthrough warnings
Add the attribute where it seems to make sense.
Mike Frysinger [Thu, 21 Dec 2023 06:54:31 +0000 (01:54 -0500)]
sim: cris: fix -Wimplicit-fallthrough warnings
Replace some fall through comments with the attribute.
Mike Frysinger [Thu, 21 Dec 2023 06:29:21 +0000 (01:29 -0500)]
sim: bfin: fix -Wimplicit-fallthrough warnings
Add the attribute to places where we want to fall thru.
Mike Frysinger [Thu, 21 Dec 2023 06:28:52 +0000 (01:28 -0500)]
sim: avr: fix -Wimplicit-fallthrough warnings
Replace some fall through comments with the attribute.
Mike Frysinger [Thu, 21 Dec 2023 06:28:16 +0000 (01:28 -0500)]
sim: arm: fix -Wimplicit-fallthrough warnings
Replace some fall through comments with the attribute.
Mike Frysinger [Thu, 21 Dec 2023 06:25:50 +0000 (01:25 -0500)]
sim: aarch64: fix -Wimplicit-fallthrough warnings
Replace some fall through comments with the attribute, and add some
default abort calls when the compiler can't figure out that the set
of values were already fully enumerated in the switch statement.
Mike Frysinger [Thu, 21 Dec 2023 06:29:53 +0000 (01:29 -0500)]
sim: common: fix -Wimplicit-fallthrough warnings
Replace some fall through comments with the attribute.
Mike Frysinger [Thu, 21 Dec 2023 05:19:27 +0000 (00:19 -0500)]
sim: add ATTRIBUTE_FALLTHROUGH for local code
We'll replace various /* fall through */ comments so compilers can
actually understand what the code is doing.
Mike Frysinger [Thu, 21 Dec 2023 05:38:31 +0000 (00:38 -0500)]
sim: signal: mark signal callback funcs as noreturn since they don't return
All funcs already call other funcs that don't return. The mips port is
the only exception because its generic exception handler can return in
the case of normal exceptions. So while the exceptions its signal handler
triggers doesn't return, we can't express that conditional logic. So add
some useless abort calls to make the compiler happy.
Mike Frysinger [Thu, 21 Dec 2023 06:39:01 +0000 (01:39 -0500)]
sim: sh: add missing breaks to bit processing
Doesn't seem like we want to cascade in this section when bit processing.
Mike Frysinger [Thu, 21 Dec 2023 06:38:11 +0000 (01:38 -0500)]
sim: rx: mark abort func as noreturn since it doesn't
Mike Frysinger [Thu, 21 Dec 2023 06:36:40 +0000 (01:36 -0500)]
sim: rx: add missing break to memory write
It doesn't seem like we want to keep executing the next block of code
after processing the request.
Mike Frysinger [Thu, 21 Dec 2023 06:32:59 +0000 (01:32 -0500)]
sim: iq2000: add fallback for exit syscall
Make sure this syscall always exits regardless of the exit code.
Mike Frysinger [Thu, 21 Dec 2023 06:30:20 +0000 (01:30 -0500)]
sim: cr16: add missing break statement
Doesn't seem to make sense for this to fall through
(although I'm not an expert in this ISA).
Mike Frysinger [Thu, 21 Dec 2023 06:27:18 +0000 (01:27 -0500)]
sim: arm: add missing breaks to SWI processing
Seems unlikely we want the remove syscall to fallthrough into the
rename syscall since we can't rename files that have been removed.
Mike Frysinger [Thu, 21 Dec 2023 05:31:25 +0000 (00:31 -0500)]
sim: common: mark engine restart as noreturn
This helps the compiler with optimization and fixes fallthru warnings.
Mike Frysinger [Thu, 21 Dec 2023 05:15:48 +0000 (00:15 -0500)]
sim: ppc: phb: add missing break to address decoder
I don't know what this emulation does exactly, but it missing a break
statement seems kind of obvious based on the 32-bit case above it.
Mike Frysinger [Thu, 21 Dec 2023 05:09:23 +0000 (00:09 -0500)]
sim: ppc: mark halt & restart funcs as noreturn
This helps the compiler with optimization and fixes fallthru warnings.
Mike Frysinger [Thu, 21 Dec 2023 05:02:03 +0000 (00:02 -0500)]
sim: warnings: enable -Wduplicated-cond
Mike Frysinger [Thu, 21 Dec 2023 05:00:49 +0000 (00:00 -0500)]
sim: mn10300: fix LAST_TIMER_REG typo
The compiler pointed out that we're testing LAST_TIMER_REG and
LAST_COUNTER which are the same value ... and that's because we
set LAST_TIMER_REG to the wrong register. Fix the typo.
Mike Frysinger [Thu, 21 Dec 2023 04:59:28 +0000 (23:59 -0500)]
sim: bfin: clean up astat reg name decode a little
The compiler pointed out we checked AZ twice. Sort by name to avoid
that in the future, and to make it clearer that we have coverage of
all the bits. And add the bits we were missing.
The order here doesn't matter as it's just turning a pointer into a
human readable string when store tracing is enabled.
Mike Frysinger [Tue, 19 Dec 2023 10:47:32 +0000 (05:47 -0500)]
sim: common: delete unused scache in some mloop paths
The scache vars aren't used by ports in the pbb & fast codepaths,
nor are they documented as inputs to the callbacks, so delete them
to avoid unused variable compiler warnings.
Mike Frysinger [Wed, 20 Dec 2023 00:54:13 +0000 (19:54 -0500)]
sim: cgen: unify the genmloop logic a bit
Pull out the common parts of the genmloop invocation into the common
code. This will make it easier to add more, and make the per-port
differences a little more obvious.
GDB Administrator [Thu, 21 Dec 2023 00:00:23 +0000 (00:00 +0000)]
Automatic date update in version.in
Vladimir Mezentsev [Tue, 19 Dec 2023 05:04:57 +0000 (21:04 -0800)]
gprofng: 31169 Source code locations can not be found in a C++ application
gprofng incorrectly reads the form of the DW_FORM_ref_addr attribute for DWARF
Version 3 or later.
From DWARF specification:
References that use the attribute form DW_FORM_ref_addr are specified to
be four bytes in the DWARF 32-bit format and eight bytes in the DWARF
64-bit format, while DWARF Version 2 specifies that such references have
the same size as an address on the target system.
2023-12-18 Vladimir Mezentsev <vladimir.mezentsev@oracle.com>
PR gprofng/31169
* src/DwarfLib.cc: Fix the reader for DW_FORM_ref_addr.