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2017-02-07Fix Thumb-1 BE32 execution and disassembly.Julian Brown1-0/+7
Thumb-1 code has some issues in BE32 mode (as currently implemented). In short, since bytes are swapped within words at load time for BE32 executables, this also swaps pairs of adjacent Thumb-1 instructions. This patch un-swaps those pairs of instructions again, both for execution, and for disassembly. (The previous version of the patch always read four bytes in arm_read_memory_func and then extracted the proper two bytes, in a probably misguided attempt to match the behaviour of actual hardware as described by e.g. the ARM9TDMI TRM, section 3.3 "Endian effects for instruction fetches". It's less complicated to just read the correct two bytes though.) Signed-off-by: Julian Brown <julian@codesourcery.com> Message-id: ca20462a044848000370318a8bd41dd0a4ed273f.1484929304.git.julian@codesourcery.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-01-24nios2: Add disas entriesMarek Vasut1-0/+6
Add nios2 disassembler support. This patch is composed from binutils files from commit "Opcodes and assembler support for Nios II R2". The files from binutils used in this patch are: include/opcode/nios2.h include/opcode/nios2r1.h include/opcode/nios2r2.h opcodes/nios2-opc.c opcodes/nios2-dis.c Checkpatch says total: 114 errors, 0 warnings, 3609 lines checked , which is caused by a different coding style in those files. These warnings and errors are not addressed To let these files be easily synchronized between binutils and qemu. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Chris Wulff <crwulff@gmail.com> Cc: Jeff Da Silva <jdasilva@altera.com> Cc: Ley Foon Tan <lftan@altera.com> Cc: Sandra Loosemore <sandra@codesourcery.com> Cc: Yves Vandervennet <yvanderv@altera.com> Reviewed-by: Alexander Graf <agraf@suse.de> Message-Id: <20170118220146.489-2-marex@denx.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-07-19disas: Fix ATTRIBUTE_UNUSED define clash with ALSA headersPeter Maydell1-0/+2
disas/bfd.h defines ATTRIBUTE_UNUSED, but unfortunately the ALSA system headers also define this macro, which means that you can get a compilation failure if building with ALSA and any files happen to include the alsa headers before bfd.h rather than the other way around. This is unfortunate namespace pollution by the ALSA headers but we can work around it. Add an #ifndef guard to bfd.h and remove the unnecessary extra definition in disas/arm.c to fix this. Reported-by: BALATON Zoltan <balaton@eik.bme.hu> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 1468937076-21503-1-git-send-email-peter.maydell@linaro.org
2016-07-18disas: Remove unused macro '_'Lluís Vilanova1-1/+0
Eliminates a future compilation error when UI code includes the tracing headers (indirectly pulling "disas/bfd.h" through "qom/cpu.h") and GLib's i18n '_' macro. Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-07-14Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into stagingPeter Maydell1-1/+1
* SCSI scanner support * fixes to qemu-char and net exit * FreeBSD fixes * Other small bugfixes # gpg: Signature made Wed 13 Jul 2016 12:30:11 BST # gpg: using RSA key 0xBFFBD25F78C7AE83 # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" # Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1 # Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83 * remotes/bonzini/tags/for-upstream: hostmem: detect host backend memory is being used properly hostmem: fix QEMU crash by 'info memdev' char: do not use atexit cleanup handler net: do not use atexit for cleanup slirp: use exit notifier for slirp_smb_cleanup tap: use an exit notifier to call down_script util: Fix MIN_NON_ZERO qemu-sockets: use qapi_free_SocketAddress in cleanup disas: avoid including everything in headers compiled from C++ json-streamer: fix double-free on exiting during a parse main-loop: check return value before using pointer Use "-s" instead of "--quiet" to resolve non-fatal build error on FreeBSD. scsi-bus: Use longer sense buffer with scanners scsi-bus: Add SCSI scanner support Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-07-12disas: avoid including everything in headers compiled from C++Paolo Bonzini1-1/+1
disas/arm-a64.cc is careful to include only the bare minimum that it needs---qemu/osdep.h and disas/bfd.h. Unfortunately, disas/bfd.h then includes qemu-common.h, which brings in qemu/option.h and from there we get the kitchen sink. This causes problems because for example QEMU's atomic macros conflict with C++ atomic types. But really all that bfd.h needs is the fprintf_function typedef, so replace the inclusion of qemu-common.h with qemu/fprintf-fn.h. Reported-by: Sean Bruno <sbruno@freebsd.org> Tested-by: Sean Bruno <sbruno@freebsd.org> Cc: Peter Maydell <peter.maydell@linaro.org> Cc: Markus Armbruster <armbru@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-07-12Clean up ill-advised or unusual header guardsMarkus Armbruster1-3/+3
Cleaned up with scripts/clean-header-guards.pl. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-07-12Clean up header guards that don't match their file nameMarkus Armbruster1-3/+3
Header guard symbols should match their file name to make guard collisions less likely. Offenders found with scripts/clean-header-guards.pl -vn. Cleaned up with scripts/clean-header-guards.pl, followed by some renaming of new guard symbols picked by the script to better ones. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-05-19qemu-common: push cpu.h inclusion out of qemu-common.hPaolo Bonzini1-0/+2
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-07-09disas: Add print_insn to disassemble infoPeter Crosthwaite1-0/+6
Add the print_insn pointer to the disassemble info structure. This is to prepare for QOMification support, where a QOM CPU hook function will be responsible for setting the print_insn() function. Add this function to the existing struct to consolidate such that only the one struct needs to be passed to the new QOM API. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-06-22disas: Remove uses of CPU envPeter Crosthwaite1-2/+2
disas does not need to access the CPU env for any reason. Change the APIs to accept CPU pointers instead. Small change pattern needs to be applied to all target translate.c. This brings us closer to making disas.o a common-obj and less architecture specific in general. Cc: Richard Henderson <rth@twiddle.net> Cc: Peter Maydell <peter.maydell@linaro.org> Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Michael Walle <michael@walle.cc> Cc: Aurelien Jarno <aurelien@aurel32.net> Cc: Leon Alrae <leon.alrae@imgtec.com> Cc: Jia Liu <proljc@gmail.com> Cc: Alexander Graf <agraf@suse.de> Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Max Filippov <jcmvbkbc@gmail.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Acked-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2014-02-08disas: Implement disassembly output for A64Claudio Fontana1-0/+1
Use libvixl to implement disassembly output in debug logs for A64, for use with both AArch64 hosts and targets. Signed-off-by: Claudio Fontana <claudio.fontana@linaro.org> [PMM: * added support for target disassembly * switched to custom QEMUDisassembler so the output format matches what QEMU expects * make sure we correctly fall back to "just print hex" if we didn't build the AArch64 disassembler because of lack of a C++ compiler * rename from 'aarch64' to 'arm-a64' because this is a disassembler for the A64 instruction set * merge aarch64.c and aarch64-cxx.cc into one C++ file * simplify the aarch64.c<->aarch64-cxx.cc interface] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-03-23Add moxie disassemblerAnthony Green1-0/+2
Signed-off-by: Anthony Green <green@moxielogic.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-12-19build: kill libdis, move disassemblers to disas/Paolo Bonzini2-0/+526
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>