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2021-04-12sim: cgen: move cgen_cpu_max_extra_bytes logic into the common codeMike Frysinger2-1/+5
Every arch handles this the same way, so move it to the common code. This will also make unifying the sim_cpu structure easier.
2021-04-02sim: unify toolchain settingsMike Frysinger3-153/+162
The toplevel, common, and igen dirs all have their own code for setting up toolchain settings. Unify all of that in a new macro.
2021-02-28sim: set up build-time compiler settingsMike Frysinger1-9/+10
Some sim dirs were already setting up CFLAGS_FOR_BUILD in inconsistent ways. Move it to a common place for reuse.
2021-02-28sim: use AC_CHECK_TOOL to find arMike Frysinger1-3/+93
Rather than require $AR be set and then default to `ar`, use the standard AC_CHECK_TOOL helper to find a good prefixed tool. In practice this shouldn't change much as we seem to have macros in the tree that were already setting it up, but we shouldn't rely on that implicitly.
2021-02-28sim: require AC_PROG_CPP explicitlyMike Frysinger2-140/+145
All the scripts were using this implicitly already, so there's no real change for them, but we want to call it explicitly as the CPP tool is used to generate nltvals.def.
2021-02-21sim: common: split up acinclude.m4 into individual m4 filesMike Frysinger4-11/+34
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.
2021-02-13sim: switch to AC_CONFIG_MACRO_DIRSMike Frysinger4-1834/+35
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.
2021-02-06sim: common: switch AC_CONFIG_HEADERSMike Frysinger1-3/+2
The AC_CONFIG_HEADER macro is long deprecated, so switch to the newer form. This also gets rid of the position limitation, and drops support for an argument to SIM_AC_COMMON which we haven't used anywhere.
2021-02-06sim: drop use of bfd/configure.hostMike Frysinger2-7/+15
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.
2021-01-11sim: clean up C11 header includesMike Frysinger3-16/+35
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.
2021-01-09sim: clean up stale AC_PREREQ refsMike Frysinger3-15/+8
This was purged from the tree when we upgraded to autoconf-2.69, but a few references in the sim tree were missed.
2021-01-09sim: enable -Werror by default for some archesMike Frysinger2-5/+7
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.
2021-01-09sim: pru: fix include ordering with sim-main.hMike Frysinger2-0/+6
Make sure config.h is included before C library headers otherwise the later libiberty.h include gets confused about asprintf state leading to warnings like: common/sim-utils.c:330:9: warning: implicit declaration of function 'vasprintf'; did you mean 'xvasprintf'? [-Wimplicit-function-declaration]
2021-01-08sim: require a C11 compilerMike Frysinger2-13/+57
With GDB requiring a C++11 compiler now, this hopefully shouldn't be a big deal. It's been 10 years since C11 came out, so should be plenty of time to upgrade. This will allow us to start cleaning up random header logic and many of our non-standard custom types.
2021-01-04sim: update bug URI to https://Mike Frysinger2-1/+5
2021-01-01Update copyright year range in all GDB filesJoel Brobecker6-6/+6
This commits the result of running gdb/copyright.py as per our Start of New Year procedure... gdb/ChangeLog Update copyright year range in copyright header of all GDB files.
2020-11-12sim: pru: Add support for LMBD instructionDimitar Dimitrov3-0/+23
Binutils support for LMBD instruction was merged [1]. So add it also to simulator. LMBD instruction does left-most-bit-detection. It returns 32 if the given bit value is not found in the provided word value. [1] https://sourceware.org/pipermail/binutils/2020-October/113901.html sim/pru/ChangeLog: * pru.h (RS1SEL): New macro. (RS1_WIDTH): New macro. * pru.isa: Describe the LMBD instruction. sim/testsuite/sim/pru/ChangeLog: * lmbd.s: New test.
2020-01-01Update copyright year range in all GDB files.Joel Brobecker6-6/+6
gdb/ChangeLog: Update copyright year range in all GDB files.
2019-09-23sim: Add PRU simulator portDimitar Dimitrov10-0/+17709
A simulator port for the TI PRU I/O processor. v1: https://sourceware.org/ml/gdb-patches/2016-12/msg00143.html v2: https://sourceware.org/ml/gdb-patches/2017-02/msg00397.html v3: https://sourceware.org/ml/gdb-patches/2017-02/msg00516.html v4: https://sourceware.org/ml/gdb-patches/2018-06/msg00484.html v5: https://sourceware.org/ml/gdb-patches/2019-08/msg00584.html v6: https://sourceware.org/ml/gdb-patches/2019-09/msg00036.html gdb/ChangeLog: * NEWS: Mention new simulator port for PRU. sim/ChangeLog: * MAINTAINERS: Add myself as PRU maintainer. * configure: Regenerated. * configure.tgt: Add PRU. sim/common/ChangeLog: * gennltvals.sh: Add PRU libgloss target. * nltvals.def: Regenerate from the latest libgloss sources. sim/pru/ChangeLog: * Makefile.in: New file. * aclocal.m4: Regenerated. * config.in: Regenerated. * configure: Regenerated. * configure.ac: New file. * interp.c: New file. * pru.h: New file. * pru.isa: New file. * sim-main.h: New file.
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