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2021-01-09sim: replace rindex with strrchrMike Frysinger2-2/+6
2021-01-09sim: cr16/d10v: move storage out of headerMike Frysinger6-2/+20
These ports declare their State variable in a header and then include multiple times. This causes linker errors with newer gcc due to the change in -fno-common behavior. Move the storage to a C file so we only have one instance of it in the final program.
2021-01-09sim: common: clean up asprintf includes a bitMike Frysinger4-5/+7
Delete stale prototypes that libiberty.h already provides, and add missing libiberty.h includes to files that use those functions.
2021-01-09sim: sh64: delete portMike Frysinger430-73941/+13
Support for sh64 was dropped from bfd et al in 2018. Without that, the sim port is useless. So clean up this code too.
2021-01-09sim: clean up stale AC_PREREQ refsMike Frysinger61-458/+198
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 Frysinger53-116/+140
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]
2021-01-09sim: hw: rework code to avoid gcc warningsMike Frysinger2-7/+8
Newer gcc thinks we might return a pointer to a stack buffer, but we don't -- we strdup it before returning. Rework the code to just malloc the buffer from the start and avoid the stack+strdup.
2021-01-09sim: common: add missing stdlib.h for abort()Mike Frysinger5-0/+9
2021-01-08sim: require a C11 compilerMike Frysinger65-419/+1750
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.
2021-01-08sim: ppc: stub out sim_memory_mapMike Frysinger2-0/+10
Not clear how to implement this in the ppc-specific sim, so just stub it out. This is as good as it was previously.
2021-01-07sim: ChangeLog: move arch-specific entries into the arch dirMike Frysinger10-509/+524
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.
2021-01-07sim: cris: disable test that crashes the linkerMike Frysinger2-1/+10
PR ld/13900 Linking this test crashes the linker, so disable it. The crash was reported about 9 years ago but haven't made progress, so lets avoid the failures in test runs.
2021-01-07sim: cris: use -sim with C tests for cris-elf targetsMike Frysinger2-0/+8
Building the C tests with a cris-elf toolchain (gcc-10.2 & newlib-4.1.0) currently fail due to warnings it emits: cris-elf-ld: libc.a(lib_a-closer.o): in function `_close_r': newlib/libc/reent/closer.c:47: warning: _close is not implemented and will always fail This is because the default target for cris-elf is bare metal, not the simulator. For that, we need -sim. So add it for elf targets. We don't add it for all targets as the simulator (and testsuite) run both libgloss programs as well as Linux userspace programs.
2021-01-07sim: h8300: delete opcode cachingMike Frysinger3-136/+20
This is in preparation for converting h8300 over to the common memory framework. It's not clear how much of a speed gain this was providing in the first place -- a naive test of ~400k insns (using shlr.s) shows that this code actually slowed things down a bit. If anyone really cares about h8300 anymore, they can migrate to the common insn caching logic.
2021-01-07gdb/sim: add support for exporting memory mapMike Frysinger2-0/+61
This allows gdb to quickly dump & process the memory map that the sim knows about. This isn't fully accurate, but is largely limited by the gdb memory map format. While the sim supports RWX bits, gdb can only handle RW or RO regions.
2021-01-07fix paths in ChangeLogMike Frysinger1-5/+5
2021-01-07sim: cris: fix C tests with newer toolchainsMike Frysinger11-2/+21
Make sure we include unistd.h for getpid prototypes to fix build warnings/errors with newer compilers & C libraries. Doing that for close in openpf highlights these were using the wrong function -- need to use fclose on FILE*, not close. These tests pass again with a cris-elf toolchain.
2021-01-05sim: fr30: delete unused testsuiteMike Frysinger108-7226/+4
Looking through the history, it doesn't seem like the fr30 port was ever merged. There used to be a testsuite/fr30-elf/ dir, but that was punted back in 2005 as being dead too. Since there's no refs and the dir hasn't been touched since 1999, lets assume no one will ever notice or care.
2021-01-05sim: testsuite: delete unused Make-common.in fileMike Frysinger2-90/+4
This seems like it was meant to unify arch test Makefiles, but that never happened, and we've instead unified using dejagnu.
2021-01-05sim: h8300: fix test mach markersMike Frysinger10-9/+15
These tests all fail to assemble when targeting the h8300 or h8300h cpu variants with errors like: rotl.s:242: Warning: Opcode `rotl.b' with these operand types not available in H8/300H mode rotl.s:242: Error: invalid operands It's been this way for years and no one seems to care, so disable them for those targets since the assembler thinks it's impossible.
2021-01-05sim: h8300: simplify testsuite runnerMike Frysinger2-61/+15
We don't need to manually enumerate every test. Use a glob function like every other port and rely on the (already existing) #mach headers in each file to filter out targets we don't care about.
2021-01-04sim: include stdlib.h for atoi()Mike Frysinger10-4/+23
Make sure the files using atoi() include stdlib.h for its prototype. These files were relying on it being included implicitly by others which isn't guaranteed, and newer toolchains produce warnings.
2021-01-04sim: stdlib.h for abs()Mike Frysinger6-0/+16
Make sure the files using abs() include stdlib.h for its prototype. These files were relying on it being included implicitly by others which isn't guaranteed, and newer toolchains produce warnings.
2021-01-04sim: update bug URI to https://Mike Frysinger64-33/+159
2021-01-04sim: common: version: add build & homepage info when interactiveMike Frysinger2-0/+20
This mirrors gdb behavior of dumping extra info when being run in interactive mode. It also gives us an excuse to use the otherwise unused sim_print_config.
2021-01-04sim: common: use sim_config_print nameMike Frysinger3-3/+3
Meant to push this variant where naming preference is given to the module the code resides in rather than the operation it performs.
2021-01-04sim: common: add a version output helper w/copyright+license infoMike Frysinger3-1/+31
This mirrors the existing sim_print_help function, and the behavior of all other GNU tools with their --version.
2021-01-04sim: common: rename sim_print_configMike Frysinger3-2/+8
print_sim_config has never been used anywhere, so rename it to follow the sim_* naming style for all other symbols we export.
2021-01-02sim: common: add align_{up,down} to match gdbMike Frysinger5-18/+19
We have ALIGN_{8,16,PAGE} and FLOOR_PAGE macros (where PAGE is defined as 4k) which were imported from the ppc sim. But no other sim utilizes these and hardcoding the sizes in the name is a bit limiting. Let's delete these and import the two general macros that gdb uses: align_up(addr, bytes) align_down(addr, bytes) This in turn allows us to cut over the Blackfin code immediately.
2021-01-01Update copyright year range in all GDB filesJoel Brobecker667-667/+667
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.
2020-12-31sim/mips/sim-main.c: Include <stdlib.h> (for abort() declaration)Pavel I. Kryukov2-0/+5
sim/mips/ChangeLog: * sim-main.c: Include <stdlib.h>.
2020-12-15Add support for the SDIV and UDIV instructions to the ARM simulator.Jens Bauer4-19/+132
* armemu.c (handle_v6_insn): Add support for SDIV and UDIV. * thumbemu.c (handle_T2_insn): Likewise.
2020-12-14sim/mips/cp1.c: Include <stdlib.h> for abort() declarationPavel I. Kryukov2-0/+6
sim/mips/ChangeLog: * cp1.c: Include <stdlib.h>
2020-11-12sim: pru: Add support for LMBD instructionDimitar Dimitrov5-0/+88
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.
2020-11-12m32r sim: Add prototypes for functions that pass/return DI valuesNick Clifton2-1/+18
* m32r-sim.h (m32rbf_h_accum_get_handler): Always provide a prototype for this function. (m32rbf_h_accum_set_handler): Likewise. (m32r2f_h_accums_get_handler): Prototype. (m32r2f_h_accums_set_handler): Prototype.
2020-11-01sim/bpf: re-generate configureSimon Marchi2-2/+6
I noticed a little diff when re-generating the configure file in this directory. sim/ChangeLog: * bpf/configure: Re-generate. Change-Id: Ieb26be2cc1be8108d4b08387255f45b57f288171
2020-10-22sim: move ChangeLog entries into the correct filesAndrew Burgess3-5/+8
Moves some ChangeLog entries under sim/ into the correct files.
2020-10-22Fix printf formatting errors where "0x" is used as a prefix for a decimal ↵Dr. David Alan Gilbert3-3/+8
number. bfd * po/es.po: Fix printf format binutils * windmc.c: Fix printf format gas * config/tc-arc.c: Fix printf format opcodes * po/es.po: Fix printf format sim * arm/armos.c: Fix printf format * ppc/emul_netbsd.c: Fix printf format -- Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK
2020-10-06sim: Fix autoreconf errors in sim/ directoryAndrew Burgess15-15/+40
Run autoreconf in sim/ directory and you'll see some errors. The problem is that autoreconf (a perl script) does not evaluate the value passed as an argument to AC_CONFIG_AUX_DIR, so something like: AC_CONFIG_AUX_DIR(`cd $srcdir;pwd`/../..) does not do the right thing inside autoreconf, my understanding is that changing to something like this is fine: AC_CONFIG_AUX_DIR(../..) the generated configure seems to check the value passed, and the value passed relative to the source directory, so I think we get basically the same behaviour as before. sim/testsuite/ChangeLog: * configure: Regnerate. * configure.ac (AC_CONFIG_AUX_DIR): Update. sim/testsuite/d10v-elf/ChangeLog: * configure: Regnerate. * configure.ac (AC_CONFIG_AUX_DIR): Update. sim/testsuite/frv-elf/ChangeLog: * configure: Regnerate. * configure.ac (AC_CONFIG_AUX_DIR): Update. sim/testsuite/m32r-elf/ChangeLog: * configure: Regnerate. * configure.ac (AC_CONFIG_AUX_DIR): Update. sim/testsuite/mips64el-elf/ChangeLog: * configure: Regnerate. * configure.ac (AC_CONFIG_AUX_DIR): Update.
2020-09-18sim/m32r: return register sizes after fetch and storeAndrew Burgess2-2/+24
The m32r simulator currently always returns -1 for the register size after both a fetch and a store. In the fetch case GDB is forgiving of this, but in the store case GDB treats a return value of -1 as an error. This commit updates the m32r simulator to return a valid register size when fetching or storing a register. This fixes any GDB test that writes to a register, which will include any GDB test that makes an inferior call, for example gdb.base/break.exp. sim/m32r/ChangeLog: * m32r.c (m32rbf_register_size): New function. (m32rbf_fetch_register): Use new function. (m32rbf_store_register): Likewise.
2020-09-08bpf: simulator: correct div, mod insn semanticsDavid Faust6-33/+66
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.
2020-09-03bpf: several small fixes in the simulatorJose E. Marchesi7-3/+79
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.
2020-09-03sim: better handle builds of primary targets lacking simsJose E. Marchesi3-6/+16
When building with a primary target that doesn't feature a simulator, one would expect for nothing to be done in sim/. However, a $(top_builddir)/sim/testsuite directory is created, with a Makefile containing a rule like: check-DEJAGNU: site.exp echo "Dejagnu-checking in `pwd` directory ..." rootme=`pwd`; export rootme; echo rootme = $$rootme; \ srcdir=`cd ${srcdir}; pwd`; export srcdir ; echo srcdir = $$srcdir; \ EXPECT=${EXPECT} ; export EXPECT ; echo EXPECT = $$EXPECT; \ if [ -f $$rootme/../../expect/expect ]; then \ TCL_LIBRARY=`cd $$srcdir/../../tcl/library && pwd`; \ export TCL_LIBRARY; \ fi; \ echo TCL_LIBRARY = $$TCL_LIBRARY; \ runtest=$(RUNTEST); echo runtest = $$runtest; \ if $(SHELL) -c "$$runtest --version" > /dev/null 2>&1; then \ $$runtest $(RUNTESTFLAGS); \ else echo "WARNING: could not find \`runtest'" 1>&2; :;\ fi Consequently, when `make check' recurses into sim/testsuite, the above rule is executed. Until now, the desired effect (of doing nothing) was achieved because `runtest --version' fails due to a malformed site.exp being generated in objdir: it is malformed because the primary target doesn't configure a $sim_arch. i.e. this was doing the right thing just by chance. However, the git version of dejagnu seems to have changed in a way runtest doesn't try to load site.exp when it gets --version. The net effect is that the rule above tries to actually run the tests, failing miserably. This little patch makes sim/configure to not recurse into sim/testsuite if the primary target didn't configure a simulator. Tested with: - A simulator target (bpf-unkonwn-none). - A simulator-less target (x86_64-linux-gnu). - A simulator-less target and --build-targets=all. sim/ChangeLog: 2020-09-03 Jose E. Marchesi <jose.marchesi@oracle.com> * configure.ac: Do not configure sim/testsuite nor sim/igen if the primary target doesn't have a simulator. * configure: Regenerate.
2020-08-21sim/bfin: include config/pkg.m4 in configure.acSimon Marchi3-8/+302
When trying to re-generate configure in sim/bfin, I get: $ autoreconf -vf autoreconf: Entering directory `.' autoreconf: configure.ac: not using Gettext autoreconf: running: aclocal --force autoreconf: configure.ac: tracing autoreconf: configure.ac: not running libtoolize: --install not given autoreconf: running: /opt/autostuff/bin/autoconf --force configure.ac:57: error: possibly undefined macro: AC_CHECK_LIB If this token and others are legitimate, please use m4_pattern_allow. See the Autoconf documentation. autoreconf: /opt/autostuff/bin/autoconf failed with exit status: 1 This happens since commit f693213d126a ("Run `autoreconf -vf` throughout"). The problem (not clear from the error message) is that the PKG_CHECK_MODULES macro used in configure.ac is undefined. In the past, I suppose that it relied on the person running autoconf having pkg.m4 (from pkg-config) in their include path. That's not my case. Since we recently added a local version of PKG_CHECK_MODULES to our tree, we can just make sim/bfin/configure.ac use it. This patch makes configure.ac include config/pkg.m4, and re-generates configure. With this, the configure script appears to be generated correctly, I am able to configure and build the bfin simulator. Note: using sinclude to include the required m4 files makes no sense to me. These files contain macros we need, if they are not defined then the resulting file is unusable. And sinclude fails silently if the file is not found. So, better use include/m4_include. sim/bfin/ChangeLog: * configure.ac: Include config/pkg.m4. Change-Id: I7d8012e5ed510cd7746b94e918f0feb1c701cd83
2020-08-13[ARM, sim] Fix build failure with -Werror (PR26365)Luis Machado2-12/+38
There is a bit of a situation in the ARM sim with regards to the handling of argv. sim_open () gets a const char **argv, but ARM's sim_open gets clever and decides to modify argv in place via sim_target_parse_command_line. I'm not sure why. In any case, here's a fix that makes the code modify a copy of argv instead. sim/arm/ChangeLog: 2020-08-13 Luis Machado <luis.machado@linaro.org> PR sim/26365 * wrapper.c (sim_target_parse_command_line): Free discarded argv entries. (sim_open): Use a duplicate of argv instead of the original argv.
2020-08-10[sim] Fix mbuild build breaker in sim-cpu.cTom de Vries2-0/+6
When running gdb/gdb_mbuild.sh, I run into: ... src/sim/aarch64/../common/sim-cpu.c: In function 'sim_cpu_free': src/sim/aarch64/../common/sim-cpu.c:64:3: error: implicit declaration of \ function 'free' [-Werror=implicit-function-declaration] free (cpu); ^~~~ src/sim/aarch64/../common/sim-cpu.c:64:3: error: incompatible implicit \ declaration of built-in function 'free' [-Werror] src/sim/aarch64/../common/sim-cpu.c:64:3: note: include '<stdlib.h>' or \ provide a declaration of 'free' ... Fix this by adding "#include <stdlib.h>". Tested by gdb/gdb_mbuild.sh -e aarch64-elf. sim/common/ChangeLog: 2020-08-10 Tom de Vries <tdevries@suse.de> * sim-cpu.c: Include stdlib.h for free.
2020-08-07MSP430: sim: Increase main memory region sizeJozef Lawrynowicz2-1/+6
The area between 0xFF00 and 0xFFC0 is unallocated in the simulator memory map, so extend the main memory region up to 0xFFC0 to allow the simulator to make use of the extra 192 bytes of space. sim/msp430/ChangeLog: * msp430-sim.c (sim_open): Increase the size of the main memory region to 0xFAC0.
2020-08-05MSP430: sim: Fix incorrect simulation of unsigned widening multiplyJozef Lawrynowicz5-12/+90
Operand sizes used for simulation of MSP430 hardware multiply operations are not aligned with the sizes used on the target, resulting in the simulator storing signed operands with too much precision. Additionally, simulation of unsigned multiplication is missing explicit casts to prevent any implicit sign extension. gcc.c-torture/execute/pr91450-1.c uses unsigned widening multiplication of 32-bit operands -4 and 2, to produce a 64-bit result: 0xffff fffc * 0x2 = 0x1 ffff fff8 If -4 is stored in 64-bit precision, then the multiplication is essentially signed and the result is -8 in 64-bit precision (0xffff ffff ffff fffc), which is not correct. sim/msp430/ChangeLog: * msp430-sim.c (put_op): For unsigned multiplication, explicitly cast operands to the unsigned type before multiplying. * msp430-sim.h (struct msp430_cpu_state): Fix types used to store hwmult operands. sim/testsuite/sim/msp430/ChangeLog: * mpyull_hwmult.s: New test.
2020-08-04sim: generated files for the eBPF simulatorJose E. Marchesi14-0/+9943
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.
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