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Author SHA1 Message Date
Mike Frysinger
aa0fca163e sim: add support for build-time ar & ranlib 
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.
 2021-05-04 08:22:07 -04:00
Mike Frysinger
fe34861780 sim: nrun: add local strsignal prototype 
While libiberty provides a definition for this for systems that lack
the function (e.g. Windows), it doesn't provide a prototype.  So add
our own local copy in the one file that uses the func.
 2021-05-01 16:37:39 -04:00
Mike Frysinger
66d055c754 sim: enable hardware support by default 
Force this on for all ports.  We have a few common models that can
be used, so make them generally available.  If the port doesn't use
any hardware (the default), then behavior is unchanged.
 2021-04-26 22:30:55 -04:00
Tom Tromey
19f6a43c6c Do not check for sys/time.h or sys/times.h 
This updates the sim so that it unconditionally uses sys/time.h.  This
is in agreement with existing code, and a recent change to BFD.

I also think that sys/times.h is never needed by the sim, so this
patch removes the check and the one spot that was conditionally
including it.

sim/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* m4/sim_ac_common.m4 (SIM_AC_COMMON): Don't check for sys/time.h
	or sys/times.h.

sim/aarch64/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure, config.in: Rebuild.

sim/arm/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure, config.in: Rebuild.

sim/avr/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure, config.in: Rebuild.

sim/bfin/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure, config.in: Rebuild.

sim/bpf/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure, config.in: Rebuild.

sim/common/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* sim-utils.c: Update includes.

sim/cr16/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* simops.c: Update includes.
	* configure, config.in: Rebuild.

sim/cris/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* rvdummy.c: Update includes.
	* dv-rv.c: Update includes.
	* configure, config.in: Rebuild.

sim/d10v/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure, config.in: Rebuild.

sim/erc32/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure, config.in: Rebuild.

sim/example-synacor/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure, config.in: Rebuild.

sim/frv/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure, config.in: Rebuild.

sim/ft32/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure, config.in: Rebuild.

sim/h8300/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure, config.in: Rebuild.

sim/iq2000/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure, config.in: Rebuild.

sim/lm32/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure, config.in: Rebuild.

sim/m32c/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure, config.in: Rebuild.

sim/m32r/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure, config.in: Rebuild.

sim/m68hc11/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure, config.in: Rebuild.

sim/mcore/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure, config.in: Rebuild.

sim/microblaze/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure, config.in: Rebuild.

sim/mips/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure, config.in: Rebuild.

sim/mn10300/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure, config.in: Rebuild.

sim/moxie/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure, config.in: Rebuild.

sim/msp430/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure, config.in: Rebuild.

sim/or1k/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure, config.in: Rebuild.

sim/ppc/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* mon.c: Update includes.
	* emul_unix.c: Update includes.
	(do_unix_gettimeofday): Update condition.

sim/pru/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure, config.in: Rebuild.

sim/riscv/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure, config.in: Rebuild.

sim/rl78/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure, config.in: Rebuild.

sim/rx/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure, config.in: Rebuild.

sim/sh/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* interp.c: Update includes.
	* configure, config.in: Rebuild.

sim/v850/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure, config.in: Rebuild.
 2021-04-22 19:51:55 -06:00
Tom Tromey
e7d8f1da71 Remove and modernize dependencies in sim 
Some spots in the sim build used manual dependencies, and some spots
did a compilation by hand but did not use the automatic dependency
tracking code.  This patch fixes these spots.

I didn't touch ppc, because it doesn't use the common Makefile code.
I also didn't touch objects that are for the build machine, because
automatic dependencies don't work for those.

sim/arm/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* Makefile.in (armemu26.o, armemu32.o): Use COMPILE and
	POSTCOMPILE.

sim/bpf/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* Makefile.in (arch.o, cpu.o, sim-if.o, traps.o): Remove.
	(mloop-le.o, mloop-be.o, decode-le.o, decode-be.o, sim-le.o)
	(sim-be.o): Use COMPILE and POSTCOMPILE.
	(SIM_EXTRA_DEPS): Add eng-le.h, eng-be.h.

sim/cr16/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* Makefile.in (SIM_EXTRA_DEPS): New variable.
	(simops.o): Remove.

sim/cris/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* Makefile.in (sim-if.o, dv-cris.o, dv-rv.o, arch.o, traps.o)
	(devices.o, crisv10f.o, mloopv10f.o, cpuv10.o, decodev10.o)
	(modelv10.o, crisv32f.o, mloopv32f.o, cpuv32.o, decodev32.o)
	(modelv32.o): Remove.
	(SIM_EXTRA_DEPS): Add engv10.h.

sim/d10v/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* Makefile.in (SIM_EXTRA_DEPS): New variable.
	(simops.o): Remove.

sim/frv/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* Makefile.in (arch.o, devices.o, frv.o, traps.o, pipeline.o)
	(interrupts.o, memory.o, cache.o, options.o, reset.o)
	(registers.o, profile.o, profile-fr400.o, profile-fr450.o)
	(profile-fr500.o, profile-fr550.o, sim-if.o, mloop.o, cpu.o)
	(decode.o, sem.o, model.o): Remove.
	(SIM_EXTRA_DEPS): Add eng.h.

sim/iq2000/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* Makefile.in (sim-if.o): Remove.
	(arch.o): Use COMPILE and POSTCOMPILE.
	(devices.o, iq2000.o, mloop.o, cpu.o, decode.o, sem.o, model.o):
	Remove.
	(SIM_EXTRA_DEPS): Add eng.h.

sim/lm32/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* Makefile.in (arch.o, traps.o, sim-if.o, lm32.o, mloop.o)
	(cpu.o, decode.o, sem.o, model.o): Remove.
	(SIM_EXTRA_DEPS): Add eng.h.

sim/m32r/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* Makefile.in (sim-if.o, arch.o, traps.o, traps-linux.o)
	(devices.o, m32r.o, mloop.o, cpu.o, decode.o, sem.o, model.o)
	(m32rx.o, mloopx.o, cpux.o, decodex.o, semx.o, modelx.o)
	(m32r2.o, mloop2.o, cpu2.o, decode2.o, sem2.o, model2.o): Remove.
	(SIM_EXTRA_DEPS): Add eng.h, engx.h, eng2.h.

sim/m68hc11/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* Makefile.in (interp.o): Remove.

sim/mips/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* Makefile.in (interp.o, m16run.o, micromipsrun.o, multi-run.o):
	Remove.
	(SIM_EXTRA_DEPS): New variable.

sim/mn10300/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* Makefile.in (interp.o): Remove.
	(idecode.o op_utils.o semantics.o): Remove.

sim/or1k/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* Makefile.in (mloop.o, arch.o, cpu.o, decode.o, sem.o)
	(sem-switch.o, model.o): Remove.

sim/rl78/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* Makefile.in (err.o, fpu.o, gdb-if.o, load.o, main.o, mem.o)
	(reg.o, rl78.o): Remove.

sim/rx/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* Makefile.in (err.o, fpu.o, gdb-if.o, load.o, main.o, mem.o)
	(misc.o, reg.o, rx.o, syscalls.o, trace.o): Remove.

sim/sh/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* Makefile.in (SIM_EXTRA_DEPS): New variable.
	(interp.o): Remove.

sim/v850/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* Makefile.in (interp.o, simops.o, semantics.o): Remove.
 2021-04-22 19:51:55 -06:00
Tom Tromey
efd82ac7cb Require GNU make 
GDB has required GNU make for quite some time, and this patch applies
this approach to the sim as well.  Requiring GNU make means that
automatic dependency tracking can be simple and reliable, and it also
makes other refactorings simpler.

sim/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* m4/sim_ac_common.m4 (SIM_AC_COMMON): Don't check for make.

sim/aarch64/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.

sim/arm/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.

sim/avr/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.

sim/bfin/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.

sim/common/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* Make-common.in: Require GNU make.

sim/cr16/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.

sim/cris/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.

sim/d10v/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.

sim/erc32/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.

sim/example-synacor/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.

sim/frv/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.

sim/ft32/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.

sim/h8300/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.

sim/iq2000/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.

sim/lm32/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.

sim/m32c/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.

sim/m32r/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.

sim/m68hc11/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.

sim/mcore/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.

sim/microblaze/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.

sim/mips/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.

sim/mn10300/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.

sim/moxie/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.

sim/msp430/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.

sim/or1k/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.

sim/pru/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.

sim/riscv/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.

sim/rl78/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.

sim/rx/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.

sim/sh/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.

sim/v850/ChangeLog
2021-04-22  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.
 2021-04-22 19:51:54 -06:00
Mike Frysinger
2662c237a9 sim: regen against sim/m4/ 
My scripts weren't updated to use new -I../m4 as the first arg.
 2021-04-21 20:40:51 -04:00
Simon Marchi
1f195bc327 sim: use -Werror when probing for supported warning flags 
When building with clang, we get:

    error: unknown warning option '-Wmissing-parameter-type' [-Werror,-Wunknown-warning-option]

This is because clang only warns by default when encountering an unknown
warning option, and the probe for supported warning flags is done
without -Werror.  All flags are therefore accepted by configure, but
then it breaks when actually compiling a source file with -Werror.

This is equivalent to this commit in gdb:

    3e019bdc20
    gdb: Use -Werror when checking for (un)supported warning flags

We then see some other compilation errors when building with clang and
-Werror, they can be dealt with later.
 2021-04-21 19:48:35 -04:00
Mike Frysinger
2c2645d7a8 sim: switch to AC_CHECK_HEADERS_ONCE 
This avoids duplicate tests for headers between common m4, arches,
and any other sources that would trigger header tests.
 2021-04-18 23:53:01 -04:00
Mike Frysinger
37e9f18266 sim: switch to AC_CHECK_FUNCS_ONCE & merge a little 
This avoids duplicate tests for functions between common m4, arches,
and any other sources that would trigger func tests.

Also manually delete known duplicate function tests between the m4,
bfin, and v850 ports.
 2021-04-18 21:55:17 -04:00
Mike Frysinger
d5a71b1131 sim: cgen: move cgen_cpu_max_extra_bytes logic into the common code 
Every arch handles this the same way, so move it to the common code.
This will also make unifying the sim_cpu structure easier.
 2021-04-12 00:14:32 -04:00
Tom Tromey
81e6e8ae40 Do not use old-style definitions in sim 
This changes all the non-generated (hand-written) code in sim to use
"new" (post-K&R) style function definitions.

2021-04-08  Tom Tromey  <tom@tromey.com>

	* bpf.c (bpf_def_model_init): Use new-style declaration.

sim/common/ChangeLog
2021-04-08  Tom Tromey  <tom@tromey.com>

	* cgen-utils.c (RORQI, ROLQI, RORHI, ROLHI, RORSI, ROLSI): Use
	new-style declaration.

sim/erc32/ChangeLog
2021-04-08  Tom Tromey  <tom@tromey.com>

	* sis.c (run_sim, main): Use new-style declaration.
	* interf.c (run_sim, sim_open, sim_close, sim_load)
	(sim_create_inferior, sim_store_register, sim_fetch_register)
	(sim_info, sim_stop_reason, flush_windows, sim_do_command): Use
	new-style declaration.
	* help.c (usage, gen_help): Use new-style declaration.
	* func.c (batch, set_regi, set_rega, disp_reg, limcalc)
	(reset_stat, show_stat, init_bpt, int_handler, init_signals)
	(disp_fpu, disp_regs, disp_ctrl, disp_mem, dis_mem, event)
	(init_event, set_int, advance_time, now, wait_for_irq, check_bpt)
	(reset_all, sys_reset, sys_halt): Use new-style declaration.
	* float.c (get_accex, clear_accex, set_fsr): Use new-style
	declaration.
	* exec.c (sub_cc, add_cc, log_cc, dispatch_instruction, fpexec)
	(chk_asi, execute_trap, check_interrupts, init_regs): Use
	new-style declaration.
	* erc32.c (init_sim, reset, decode_ersr, mecparerror)
	(error_mode, decode_memcfg, decode_wcr, decode_mcr, sim_halt)
	(close_port, exit_sim, mec_reset, mec_intack, chk_irq, mec_irq)
	(set_sfsr, mec_read, mec_write, init_stdio, restore_stdio)
	(port_init, read_uart, write_uart, flush_uart, uarta_tx)
	(uartb_tx, uart_rx, uart_intr, uart_irq_start, wdog_intr)
	(wdog_start, rtc_intr, rtc_start, rtc_counter_read)
	(rtc_scaler_set, rtc_reload_set, gpt_intr, gpt_start)
	(gpt_counter_read, gpt_scaler_set, gpt_reload_set, timer_ctrl)
	(memory_read, memory_write, get_mem_ptr, sis_memory_write)
	(sis_memory_read): Use new-style declaration.

sim/frv/ChangeLog
2021-04-08  Tom Tromey  <tom@tromey.com>

	* sim-if.c (sim_open, frv_sim_close, sim_create_inferior): Use
	new-style declaration.

sim/h8300/ChangeLog
2021-04-08  Tom Tromey  <tom@tromey.com>

	* compile.c (cmdline_location): Use new-style declaration.

sim/iq2000/ChangeLog
2021-04-08  Tom Tromey  <tom@tromey.com>

	* sim-if.c (sim_open, sim_create_inferior): Use new-style
	declaration.
	* iq2000.c (fetch_str): Use new-style declaration.

sim/lm32/ChangeLog
2021-04-08  Tom Tromey  <tom@tromey.com>

	* sim-if.c (sim_open, sim_create_inferior): Use new-style
	declaration.

sim/m32r/ChangeLog
2021-04-08  Tom Tromey  <tom@tromey.com>

	* sim-if.c (sim_open, sim_create_inferior): Use new-style
	declaration.
 2021-04-08 14:34:42 -06:00
Mike Frysinger
c2783492b6 sim: unify toolchain settings 
The toplevel, common, and igen dirs all have their own code for
setting up toolchain settings.  Unify all of that in a new macro.
 2021-04-02 23:31:14 -04:00
Mike Frysinger
c25ea03dd6 sim: set up build-time compiler settings 
Some sim dirs were already setting up CFLAGS_FOR_BUILD in inconsistent
ways.  Move it to a common place for reuse.
 2021-02-28 03:14:59 -05:00
Mike Frysinger
a3e2cc64a6 sim: use AC_CHECK_TOOL to find ar 
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.
 2021-02-28 03:03:44 -05:00
Mike Frysinger
ebe9564b99 sim: require AC_PROG_CPP explicitly 
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.
 2021-02-28 02:19:51 -05:00
Mike Frysinger
760b3e8bc9 sim: common: split up acinclude.m4 into individual m4 files 
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.
 2021-02-21 02:20:19 -05:00
Mike Frysinger
136da8cd9c sim: switch to AC_CONFIG_MACRO_DIRS 
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.
 2021-02-13 00:24:20 -05:00
Mike Frysinger
7a36eeea26 sim: common: switch AC_CONFIG_HEADERS 
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.
 2021-02-06 12:00:42 -05:00
Mike Frysinger
aa09469fc6 sim: drop use of bfd/configure.host 
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.
 2021-02-06 10:56:11 -05:00
Mike Frysinger
bccec180ce sim: bpf: fix mainloop extract call 
The extract function takes the argbuf, not the scache.
 2021-01-31 17:19:38 -05:00
Mike Frysinger
ba2f0de216 sim: bpf/or1k: fix CGEN_TRACE_EXTRACT name 
We renamed these years ago, but it looks like the cgen core missed the
TRACE_EXTRACT function, so these new ports still used the incompatible
common name.  Fix those ports to use the right func.
 2021-01-31 17:08:49 -05:00
Mike Frysinger
5c1008a41f sim: call SIM_AC_OPTION_WARNINGS(no) in remaining ports 
We want all ports to opt into extra warnings as the default compiler
settings lets a lot slide.  Opt all the ports that haven't already in
to the warning system.  None of them build with -Werror, so disable
that by default.  Hopefully someone finds these important enough to
start fixing at some point.
 2021-01-11 09:13:11 -05:00
Mike Frysinger
68ed285428 sim: clean up C11 header includes 
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.
 2021-01-11 08:05:54 -05:00
Mike Frysinger
50df264dae sim: clean up stale AC_PREREQ refs 
This was purged from the tree when we upgraded to autoconf-2.69,
but a few references in the sim tree were missed.
 2021-01-09 09:27:29 -05:00
Mike Frysinger
46f900c065 sim: require a C11 compiler 
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.
 2021-01-08 15:45:42 -05:00
Mike Frysinger
0f8e278da2 sim: ChangeLog: move arch-specific entries into the arch dir 
We don't want arch-specific entries in the common ChangeLog files.
Most arches do this already, so clean up the recent additions, and
move some older entries down to help avoid confusing newcomers.
 2021-01-07 12:22:33 -05:00
Mike Frysinger
dfb856ba26 sim: update bug URI to https:// 2021-01-04 18:14:37 -05:00
Joel Brobecker
3666a04883 Update copyright year range in all GDB files 
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.
 2021-01-01 12:12:21 +04:00
Simon Marchi
8807d3127c sim/bpf: re-generate configure 
I noticed a little diff when re-generating the configure file in this
directory.

sim/ChangeLog:

	* bpf/configure: Re-generate.

Change-Id: Ieb26be2cc1be8108d4b08387255f45b57f288171
 2020-11-01 19:39:11 -05:00
David Faust
3ad6c19423 bpf: simulator: correct div, mod insn semantics 
The div and mod eBPF instructions are unsigned, but the semantic
specification for the simulator incorrectly used signed operators.
Correct them to unsigned versions, and correct the ALU tests in
the simulator (which incorrectly assumed signed semantics).

Tested in bpf-unknown-none.

cpu/ChangeLog:
2020-09-08  David Faust  <david.faust@oracle.com>

	* bpf.cpu (define-alu-instructions): Correct semantic operators
	for div, mod to unsigned versions.

sim/ChangeLog:
2020-09-08  David Faust  <david.faust@oracle.com>

	* bpf/sem-be.c: Regenerate.
	* bpf/sem-le.c: Likewise.

sim/testsuite/ChangeLog:
2020-09-08  David Faust  <david.faust@oracle.com>

	* sim/bpf/alu.s: Correct div and mod tests.
	* sim/bpf/alu32.s: Likewise.
 2020-09-08 11:39:07 -07:00
Jose E. Marchesi
0316fb52d6 bpf: several small fixes in the simulator 
This patch fixes the following problems:
- Missing includes in several files leading to implicit function
  declarations.
- Missing prototype for bpf_trace_printk in bpf-helpers.h
- The simulator bitsize was set to 32 bits, causing truncation of
  the program counter.

Tested in bpf-unknown-none.

sim/ChangeLog:

2020-09-03  Jose E. Marchesi  <jose.marchesi@oracle.com>

	* bpf/bpf.c: Include bpf-helpers.h.
	* bpf/bpf-helpers.h: Provide a prototype for bpf_trace_printk.
	* bpf/configure.ac: Set simulator bitsize to 64.
	* bpf/configure (includedir): Regenerate.
	* bpf/sim-if.c: Include stdlib.h.
	* bpf/traps.c: Likewise.
 2020-09-03 18:22:08 +02:00
Jose E. Marchesi
8c4c18181e sim: generated files for the eBPF simulator 
This patch adds the CGEN generated files for the eBPF simulator.

sim/ChangeLog:

2020-08-04  Jose E. Marchesi  <jose.marchesi@oracle.com>
	    David Faust <david.faust@oracle.com>

	* bpf/arch.c: Likewise.
	* bpf/arch.h: Likewise.
	* bpf/cpu.c: Likewise.
	* bpf/cpu.h: Likewise.
	* bpf/cpuall.h: Likewise.
	* bpf/decode-be.c: Likewise.
	* bpf/decode-be.h: Likewise.
	* bpf/decode-le.c: Likewise.
	* bpf/decode-le.h: Likewise.
	* bpf/defs-be.h: Likewise.
	* bpf/defs-le.h: Likewise.
	* bpf/sem-be.c: Likewise.
	* bpf/sem-le.c: Likewise.
 2020-08-04 18:11:31 +02:00
Jose E. Marchesi
b26e2ae7d3 sim: eBPF simulator 
This patch introduces the basics of an instruction-simulator for eBPF.
The simulator is based on CGEN.

gdb/ChangeLog:

2020-08-04  Jose E. Marchesi  <jose.marchesi@oracle.com>

	* configure.tgt: Set gdb_sim for bpf-*-* targets.

sim/ChangeLog:

2020-08-04  Jose E. Marchesi  <jose.marchesi@oracle.com>
	    David Faust <david.faust@oracle.com>

	* configure.tgt (sim_arch): Add entry for bpf-*-*.
	* configure: Regenerate.
	* MAINTAINERS: Add maintainer for the BPF simulator.
	* bpf/Makefile.in: New file.
	* bpf/bpf-helpers.c: Likewise.
	* bpf/bpf-helpers.def: Likewise.
	* bpf/bpf-helpers.h: Likewise.
	* bpf/bpf-sim.h: Likewise.
	* bpf/bpf.c: Likewise.
	* bpf/config.in: Likewise.
	* bpf/configure.ac: Likewise.
	* bpf/decode.h: Likewise.
	* bpf/eng.h: Likewise.
	* bpf/mloop.in: Likewise.
	* bpf/sim-if.c: Likewise.
	* bpf/sim-main.h: Likewise.
	* bpf/traps.c: Likewise.
	* bpf/configure: Generate.
	* bpf/aclocal.m4: Likewise.

sim/testsuite/ChangeLog:

2020-08-04  David Faust  <david.faust@oracle.com>
	    Jose E. Marchesi  <jose.marchesi@oracle.com>

	* configure: Regenerate.
	* sim/bpf/allinsn.exp: New file.
	* sim/bpf/alu.s: Likewise.
	* sim/bpf/alu32.s: Likewise.
	* sim/bpf/endbe.s: Likewise.
	* sim/bpf/endle.s: Likewise.
	* sim/bpf/jmp.s: Likewise.
	* sim/bpf/jmp32.s: Likewise.
	* sim/bpf/ldabs.s: Likewise.
	* sim/bpf/mem.s: Likewise.
	* sim/bpf/mov.s: Likewise.
	* sim/bpf/testutils.inc: Likewise.
	* sim/bpf/xadd.s: Likewise.
 2020-08-04 18:09:16 +02:00