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2017-01-01update copyright year range in GDB filesJoel Brobecker76-76/+76
This applies the second part of GDB's End of Year Procedure, which updates the copyright year range in all of GDB's files. gdb/ChangeLog: Update copyright year range in all GDB files.
2016-08-13sim: bfin: split out common mach/model defines into arch.h [PR sim/20438]Mike Frysinger4-26/+55
The current machs.h mixes common enums with Blackfin-specific defines. This causes us troubles with header inclusion order such that we can't drop the old SIM_CPU typedef (which is duplicated in common code). By splitting the two up, we can unwind this dependency chain, and drop the old typedef. It also fixes building with older gcc versions.
2016-01-10sim: move many common settings from CPPFLAGS to config.hMike Frysinger3-68/+124
Rather than stuffing the command line with a bunch of -D flags, start moving things to config.h which is managed by autoheader. This makes the makefile a bit simpler and the build output tighter, and it makes the migration to automake easier as there are fewer vars to juggle. We'll want to move the other options out too, but it'll take more work.
2016-01-10sim: drop unused SIM_AC_OPTION_PACKAGESMike Frysinger2-7/+6
This was imported from the ppc sim, but that was only used to control a single file, and that is already governed by the hw models. There's no need to have a sep configure option here, especially since none of the other sims are using it. Even when the code is enabled, there's no runtime overhead.
2016-01-10sim: allow the environment configure option everywhereMike Frysinger3-23/+27
Currently ports have to call SIM_AC_OPTION_ENVIRONMENT explicitly in order to make the configure flag available. There's no real reason to not allow this flag for all ports, so move it to the common sim macro. This way we get standard behavior across all ports too.
2016-01-10sim: allow the assert configure option everywhereMike Frysinger2-2/+23
Currently ports have to call SIM_AC_OPTION_ASSERT explicitly in order to make the configure flag available, which none of them do. There's no real reason to not allow this flag for all ports, so move it to the common sim macro. This way we get standard behavior across all ports.
2016-01-10sim: drop targ-vals.def->nltvals.def indirectionMike Frysinger2-57/+5
We don't have alternative nltvals.def files, so always symlinking the targ-vals.def file to it doesn't gain us anything. It does make the build more complicated though and a pain to convert to something newer (like automake). Drop the symlinking entirely. In the future, we'll want to explode this file anyways into the respective arch dirs so things can be selected dynamically at runtime, so it's not like we'll be bringing this back.
2016-01-10sim: allow the inline configure option everywhereMike Frysinger3-51/+41
Currently ports have to call SIM_AC_OPTION_INLINE explicitly in order to make the configure flag available. There's no real reason to not allow this flag for all ports, so move it to the common sim macro. This way we get standard behavior across all ports too.
2016-01-10sim: drop --enable-sim-{regparm,stdcall} optionsMike Frysinger2-12/+6
These options were never exposed for most sims (just the ppc one), and they are really only useful on 32-bit x86 systems. Considering modern systems tend to be 64-bit x86_64 and how well modern compilers are at optimizing code, these have outlived their usefulness.
2016-01-10sim: drop --enable-sim-cflags optionMike Frysinger2-23/+6
No other sub directory provides such a configuration option, so drop it from the sim dir as well. This cleans up a good bit of code in the process. If people want to use custom flags for just the sim, they can still run configure+make by hand in the sim subdir and use the normal CFLAGS settings.
2016-01-09sim: drop common/cconfig.h in favor of a single config.hMike Frysinger3-3/+397
The common subdir sets up a cconfig.h file to hold checks for the common code. In practice, most files still end up using config.h instead which just leads to confusion. Merge all the configure checks that went into cconfig.h into SIM_AC_COMMON so we can drop the cconfig.h file altogether. Now there is only a single config.h file like normal.
2016-01-06sim: sim_{create_inferior,open,parse_args}: constify argv/env slightlyMike Frysinger2-8/+18
2016-01-03 Mike Frysinger <vapier@gentoo.org> * sim-options.c (sim_parse_args): Mark argv array const. * sim-options.h (sim_parse_args): Likewise.
2016-01-05sim: bfin: add support disasm tracingMike Frysinger2-0/+6
2016-01-04sim: unify min/max macrosMike Frysinger9-14/+23
Import defines from gdb/defs.h to the sim core so we can delete the various copies that already exist.
2016-01-04sim: punt x86-specific bswap logicMike Frysinger2-21/+6
The compiler/C library should produce reasonable code for htonl/ntohl, and at least glibc tries pretty hard to always produce good code for them. This logic only had support for 32-bit x86 systems anymore, and it's unlikely people were even opting into this, so drop it all.
2016-01-03sim: parse_args: display getopt error ourselvesMike Frysinger2-3/+5
Fix a long standing todo where we let getopt write directly to stderr when an invalid option is passed. Use the sim io funcs instead as they go through the filtered callbacks that gdb wants.
2016-01-03sim: TODO: move to wikiMike Frysinger2-54/+4
We're maintaining development docs in the wiki now: https://sourceware.org/gdb/wiki/Sim/TODO
2016-01-03sim: use libiberty countargv in more placesMike Frysinger2-19/+11
A bunch of places open code the countargv implementation, or outright duplicate it (as count_argc). Replace all of those w/countargv.
2016-01-03sim: drop host endian configure optionMike Frysinger3-261/+232
The --enable-sim-hostendian flag was purely so people had an escape route for when cross-compiling. This is because historically, AC_C_BIGENDIAN did not work in those cases. That was fixed a while ago though, so we can require that macro everywhere now and simplify a good bit of code.
2016-01-03sim: convert to bfd_endianMike Frysinger3-19/+25
Rather than re-invent endian defines, as well as maintain our own list of OS & arch-specific includes, punt all that logic in favor of the bfd ones already set up and maintained elsewhere. We already rely on the bfd library, so leveraging the endian aspect should be fine.
2016-01-01GDB copyright headers update after running GDB's copyright.py script.Joel Brobecker75-75/+75
gdb/ChangeLog: Update year range in copyright notice of all files.
2015-12-27sim: unify sim-hloadMike Frysinger2-1/+4
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.
2015-12-26sim: punt WITH_DEVICES & tconfig.h supportMike Frysinger3-6/+6
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.
2015-12-26sim: bfin: push down mmr address/size checksMike Frysinger33-229/+549
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.
2015-12-26sim: bfin: avoid stack error under asanMike Frysinger2-1/+5
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.
2015-12-26sim: standardize sim_create_inferior handling of argv a bit moreMike Frysinger2-4/+9
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.
2015-12-25sim: sim-model: build for everyoneMike Frysinger3-4/+5
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.
2015-12-25sim: move MACH/MODEL types into SIM_xxx namespaceMike Frysinger2-7/+12
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.
2015-12-25sim: device_error: puntMike Frysinger2-8/+4
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.
2015-12-24sim: make LMA loading the default for all targetsMike Frysinger2-3/+4
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.
2015-11-17sim: always enable modulo memoryMike Frysinger2-4/+4
Having this be a config option doesn't make sense: the code size is pretty much the same (as all the logic is still active), and if it's disabled, the sim throws an error if you try to use it. That means we can't break sims that weren't using it before by enabling it all the time.
2015-11-16sim: sim-stop/sim-reason/sim-reg: move to common obj listMike Frysinger2-4/+6
Now that all arches (for the most part) have moved over, move sim-stop.o, sim-reason.o, and sim-reg.o to the common object list and out of all the arch ports.
2015-11-15sim: sim-close: unify sim_close logicMike Frysinger2-6/+4
Other than the nice advantage of all sims having to declare one fewer common function, this also fixes leakage in pretty much every sim. Many were not freeing any resources, and a few were inconsistent as to the ones they did. Now we have a single module that takes care of all the logic for us. Most of the non-cgen based ones could be deleted outright. The cgen ones required adding a callback to the arch-specific cleanup func. The few that still have close callbacks are to manage their internal state. We do not convert erc32, m32c, ppc, rl78, or rx as they do not use the common sim core.
2015-10-11sim: bfin: handle negative left saturated shifts as ashifts [BZ #18407]Mike Frysinger2-1/+11
When handling left saturated ashifts with negative immediates, they should be treated as right ashifts. This matches hardware behavior. Reported-by: Igor Rayak <igorr@gitatechnologies.com>
2015-06-24sim: trace: add a basic cpu register classMike Frysinger3-28/+5
The bfin/msp430 ports already had trace logic set up for reading/writing cpu registers, albeit using different unrelated levels (core & vpu). Add a proper register class for these and for other ports.
2015-06-23sim: use AS_HELP_STRING everywhereMike Frysinger2-14/+30
This helps standardize the configure --help output.
2015-06-17sim: syscall: unify memory helpersMike Frysinger2-28/+10
Almost every port implements these two callbacks in the same way, so unify them in the common layer.
2015-06-17sim: callback: add human readable strings for debugging to mapsMike Frysinger2-496/+503
When tracing, we often want to display the human readable name for the various syscall/errno values. Rather than make each target duplicate the lookup, extend the existing maps to include the string directly, and add helper functions to look up the constants. While most targets are autogenerated (from libgloss), the bfin/cris targets have custom maps for the Linux ABI which need to be updated by hand.
2015-06-12sim: bfin: expand CB_SYS_xxx commentMike Frysinger2-1/+7
2015-06-12sim: update configure.in->configure.ac docsMike Frysinger2-1/+5
A few places still refer to the configure.in file; update them.
2015-06-12sim: drop -DTRACE from configureMike Frysinger2-3/+7
No code uses this anymore and the symbol conflicts with the new TRACE helper. Punt it from configure.
2015-06-12sim: trace: add common macros for logging infoMike Frysinger6-37/+46
The Blackfin port had some TRACE_xxx macros for easily logging trace data. Use these as a base for common ones that have a simple form and match the existing sets of helper macros.
2015-04-24Fix typos in sim sources exposed by static analysis.Nick Clifton2-1/+8
bfin PR 18273 * bfin-sim.c (decode_dsp32alu_0): Remove spurious check for s == 1. erc32 PR 18273 * exec.c (add32): Fix typo in check for overflow. igen PR 18273 * misc.c (a2i): Fix typos checking for uppercase letters.
2015-04-18sim: unify SIM_CPU definitionMike Frysinger2-0/+6
Since every target typedefs this the same way, move it to the common code. We have to leave Blackfin behind here for now because of inter-dependencies on types and headers: sim-base.h includes sim-model.h which needs types in machs.h which needs types in bfim-sim.h which needs SIM_CPU.
2015-04-18sim: unify sim_cia definitionMike Frysinger2-2/+4
Almost every target defines sim_cia the same way -- either using the address_word type directly, or a type of equivalent size. The only odd one out is sh64 (who has 32bit address_word and 64bit cia), and even that case doesn't seem to make sense. We'll put off clean up though of sh64 and at least set up a sensible default for everyone.
2015-04-17sim: replace CIA_{GET,SET} with CPU_PC_{GET,SET}Mike Frysinger2-3/+4
The CIA_{GET,SET} macros serve the same function as CPU_PC_{GET,SET} except the latter adds a layer of indirection via the sim state. This lets models set up different functions at runtime and doesn't reach so directly into the arch-specific cpu state. It also doesn't make sense to have two sets of macros that do exactly the same thing, so lets standardize on the one that gets us more.
2015-04-15sim: unify sim-cpu usageMike Frysinger3-6/+6
Now that all the targets are utilizing CPU_PC_{FETCH,STORE}, and the cpu state is multicore, and the STATE_CPU defines match, we can move it all to the common code.
2015-04-13sim: fix the PKGVERSION defineMike Frysinger2-2/+6
This should be SIM, not GDB.
2015-04-06sim: move sim-engine.o/sim-hrw.o to the common listMike Frysinger2-2/+4
This makes these two objects available to all sims by default.
2015-04-02Regenerate configure in simH.J. Lu1-2/+2
* arm/configure: Regenerated. * avr/configure: Likewise. * bfin/configure: Likewise. * common/configure: Likewise. * cr16/configure: Likewise. * cris/configure: Likewise. * d10v/configure: Likewise. * erc32/configure: Likewise. * frv/configure: Likewise. * ft32/configure: Likewise. * h8300/configure: Likewise. * igen/configure: Likewise. * iq2000/configure: Likewise. * lm32/configure: Likewise. * m32c/configure: Likewise. * m32r/configure: Likewise. * m68hc11/configure: Likewise. * mcore/configure: Likewise. * microblaze/configure: Likewise. * mips/configure: Likewise. * mn10300/configure: Likewise. * moxie/configure: Likewise. * msp430/configure: Likewise. * ppc/configure: Likewise. * rl78/configure: Likewise. * rx/configure: Likewise. * sh/configure: Likewise. * sh64/configure: Likewise. * v850/configure: Likewise.
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