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This commit is the result of the following actions:
- Running gdb/copyright.py to update all of the copyright headers to
include 2024,
- Manually updating a few files the copyright.py script told me to
update, these files had copyright headers embedded within the
file,
- Regenerating gdbsupport/Makefile.in to refresh it's copyright
date,
- Using grep to find other files that still mentioned 2023. If
these files were updated last year from 2022 to 2023 then I've
updated them this year to 2024.
I'm sure I've probably missed some dates. Feel free to fix them up as
you spot them.
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While gcc propagates the printf attribute via the typedef, clang
doesn't seem to, so add it to the prototypes themselves too. We
still keep it on the prototype for cases where it's used as a
variable.
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Fix warnings from calling printf functions with "" which normally
is useless.
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Leave the igen code in place as it's meant to be used with newer
(to-be-written) code ported from the ppc version.
The sh code isn't really necessary as the opcodes enums have been
maintained independently from here, and the lists are out-of-sync
already.
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Add standard multiple inclusion protection, and add a few missing
local includes when one header uses another. This isn't complete,
but fixes some short comings seen when merging the ppc igen.
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The ppc igen error helper allows arbitrary printf calls, so extend
the common one to do the same.
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Copy some improvements from the ppc igen code.
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When generating semantics.c from .igen source files, indenting the code
makes it more readable, but confuses compiler diagnostics. The latter
is a bit more important than the former, so bias towards that.
For example, with an introduced error, we can see w/gcc-13:
(before this change)
CC mn10300/semantics.o
../../../sim/mn10300/am33-2.igen: In function ‘semantic_dcpf_D1a’:
../../../sim/mn10300/am33-2.igen:11:5: error: ‘srcreg’ undeclared (first use in this function)
11 | srcreg = translate_rreg (SD_, RN2);
| ^~~~~~
(with this change)
CC mn10300/semantics.o
../../../sim/mn10300/am33-2.igen: In function ‘semantic_dcpf_D1a’:
../../../sim/mn10300/am33-2.igen:11:3: error: ‘srcreg’ undeclared (first use in this function)
11 | srcreg = translate_rreg (SD_, RN2);
| ^~~~~~
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Now that all ports (that use igen) build in the top-level and depend
on igen, we can move the conditional logic out of configure. We also
switch from noinst_LIBRARIES to EXTRA_LIBRARIES so that the library
is only built when needed (i.e. the igen tool is used).
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Now that all ports (other than ppc) build in the top-level, we don't
need to mark the igen tool as a recursive dep. Each port depends on
the tool if it actually uses it, and ppc doesn't use it at all.
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This commit is the result of running the gdb/copyright.py script,
which automated the update of the copyright year range for all
source files managed by the GDB project to be updated to include
year 2023.
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While mips has respected sim_igen_smp at configure time (which was
always empty since it defaulted smp to off), no other igen port did.
Move this to a makefile variable and plumb it through the common
IGEN_RUN variable instead so everyone gets it by default. We also
clean up some redundant -N0 setting with multirun mips.
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Every file that igen outputs is then processed with the move-if-changed
shell script. This creates a lot of boilerplate in the build and not an
insignificant amount of build-time overhead. Move the simple "is the file
changed" logic into igen itself.
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These are const data arrays of strings and numbers. We don't want
or need them to be writable, so mark them all const.
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Use proper %p to printf a pointer instead of casting it to long and
using 0x%lx. It's cleaner, more correct, and doesn't break on LLP64.
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The parser for boolean rules fails to skip over the , separator in
the options which makes it hang forever. No dc files in the tree
use boolean rules atm which is why no one noticed.
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... and fix the legitimate bug that it catches.
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The error() function expects a trailing newline in its message.
Most callers do this already, so adding it to the few that don't.
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Because of a Libiberty hack, getopt on GNU libc (2.25 or earlier) is
currently unusable on sim, causing a regression on CentOS 7.
This is caused as follows:
1. If HAVE_DECL_GETOPT is defined (getopt declaration with known prototype
is detected while configuration), a declaration of getopt in
"include/getopt.h" is suppressed.
The author started to define HAVE_DECL_GETOPT in sim with the commit
340aa4f6872c ("sim: Check known getopt definition existence").
2. GNU libc (2.25 or earlier)'s <unistd.h> includes <getopt.h> with a
special purpose macro defined to declare only getopt function but due
to include path (not tested while configuration), it causes <unistd.h>
to include Libiberty's "include/getopt.h".
3. If both 1. and 2. are satisfied, despite that <unistd.h> tries to
declare getopt by including <getopt.h>, "include/getopt.h" does not do
so, causing getopt function undeclared.
Getting rid of "include/getopt.h" (e.g. renaming this header file) is the
best solution to avoid hacking but as a short-term solution, this commit
replaces getopt with getopt_long under sim/.
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Move off the custom local 64-bit types and to the standard uintXX_t
types that C11 provides.
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This commit brings all the changes made by running gdb/copyright.py
as per GDB's Start of New Year Procedure.
For the avoidance of doubt, all changes in this commits were
performed by the script.
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The ## marker tells automake to not include the comment in its
generated output, so use that in most places where the comment
only makes sense in the inputs.
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These rules don't depend on the target compiler settings, so hoist
the build logic up to the common builds for better parallelization.
We leave the mips rules in place as they depend on complicated
arch-specific configure logic that needs to be untangled first.
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Add a new stamp helper for quiet builds, and don't dump the command
line options when it runs. That isn't standard tool behavior, and
doesn't really seem necessary in any way.
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Now that ChangeLog entries are no longer used for sim patches,
this commit renames all relevant sim ChangeLog to ChangeLog-2021,
similar to what we would do in the context of the "Start of New
Year" procedure.
The purpose of this change is to avoid people merging ChangeLog
entries by mistake when applying existing commits that they are
currently working on.
Also throw in a .gitignore entry to keep people from adding new
ChangeLog files anywhere in the sim tree.
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We require C11 which defines NULL, so drop the inconsistent set of
fallback defines in the codebase.
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This provides a space to generate things that we only need to build
once per-arch. Some day that will be all of common/, but for now,
we move the version.c management in.
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This is needed when building for a target whose ar & ranlib are
incompatible with the current build system. For example, building
for Windows on a Linux system.
Then manually import the automake rule for libigen.a, but tweak the
tool variables to use the FOR_BUILD variants.
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A lot of this code predates the common attributes. We had already
started migrating over piece by piece, so just do a pass across all
the attributes and replace most of them.
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This simplifies the build a bit (especially for deps in port subdirs),
and avoids recursive make. This in turn speeds up the build, and sets
us up for multi-target.
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The toplevel, common, and igen dirs all have their own code for
setting up toolchain settings. Unify all of that in a new macro.
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The rest of the binutils tree renamed this variable many years ago.
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These use the same pattern as seen in the opcodes/ dir and in automake
in general (ish). This helps simplify the boilerplate for building and
linking build-time code, and fixes some inconsistency in flag usage.
For rules that were compiling+linking in a single step, split them into
separate steps so we can apply the correct set of options. This matches
automake behavior too.
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This hasn't been initialized anywhere for years. It used to be for
passing in the path to libiberty, but that stopped happening long ago.
Delete it to simplify the build logic.
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This local macro doesn't take any args, so adjust the API to match.
No one really noticed as this is behind code that is not normally
built, only when a dev specifically tries to compile it.
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This doesn't gain us much by itself, but it sets us up for using more
features as we try to unify ports and avoid recursive make.
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While the configure script was checking for a bunch of headers, only
one of them was conditionally included in the source (unistd.h). The
rest were always included. Based on those usage this whole time, we
can reasonably assume that the build also has unistd.h.
All the other files including config.h never actually used any defines
from the header.
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This package doesn't build any archives or install programs.
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This file is quite large and is getting unmanageable. Split it apart
to follow aclocal best practices by putting one-macro-per-file. There
shouldn't be any real functional changes here as can be seen in the
configure script regens.
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Rather than hand maintain m4 includes in various autotool files,
use AC_CONFIG_MACRO_DIRS to declare the relevant search paths.
This simplifies the code, makes it more robust, and cleans out
unused logic from configure.
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This dir doesn't use anything from libiberty, so drop the linkage.
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These settings might have made sense in darker compiler times, but I
think they're largely obsolete now. Looking through the values that
get used in HDEFINES, it's quite limited, and configure itself should
handle them. If we still need something, we can leverage standard
autoconf macros instead, after we get a clear user report.
TDEFINES was never set anywhere and was always empty, so prune that.
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Since we require C11 now, we can assume many headers exist, and
clean up all of the conditional includes. It's not like any of
this code actually accounted for the headers not existing, just
whether we could include them.
The strings.h cleanup is a little nuanced: it isn't in C11, but
every use of it in the codebase will include strings.h only if
string.h doesn't exist. Since we now assume the C11 string.h
exists, we'll never include strings.h, so we can delete it.
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This was purged from the tree when we upgraded to autoconf-2.69,
but a few references in the sim tree were missed.
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We've had this off for a long time because the sim code was way too
full of warnings for it to be feasible. However, I've cleaned things
up significantly from when this was first merged, and we can start to
turn this around.
Change the macro to enable -Werror by default, and allow ports to opt
out. New ports will get it automatically (and we can push back on
them if they try to turn it off).
Also turn it off for the few ports that still hit warnings for me.
All the rest will get the new default, and we'll wait for feedback
if/when new issues come up.
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