Commit Graph

8 Commits

Author SHA1 Message Date
Markus Armbruster
3979fca4b6 disas: Rename include/disas/bfd.h back to include/disas/dis-asm.h
Commit dc99065b5f (v0.1.0) added dis-asm.h from binutils.

Commit 43d4145a98 (v0.1.5) inlined bfd.h into dis-asm.h to remove the
dependency on binutils.

Commit 76cad71136 (v1.4.0) moved dis-asm.h to include/disas/bfd.h.
The new name is confusing when you try to match against (pre GPLv3+)
binutils.  Rename it back.  Keep it in the same directory, of course.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190417191805.28198-17-armbru@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2019-04-18 22:18:59 +02:00
Marc-André Lureau
02a2ad217b disas/s390: fix global-buffer-overflow
Spotted thanks to ASAN:

==25226==ERROR: AddressSanitizer: global-buffer-overflow on address 0x556715a1f120 at pc 0x556714b6f6b1 bp 0x7ffcdfac1360 sp 0x7ffcdfac1350
READ of size 1 at 0x556715a1f120 thread T0
    #0 0x556714b6f6b0 in init_disasm /home/elmarco/src/qemu/disas/s390.c:219
    #1 0x556714b6fa6a in print_insn_s390 /home/elmarco/src/qemu/disas/s390.c:294
    #2 0x55671484d031 in monitor_disas /home/elmarco/src/qemu/disas.c:635
    #3 0x556714862ec0 in memory_dump /home/elmarco/src/qemu/monitor.c:1324
    #4 0x55671486342a in hmp_memory_dump /home/elmarco/src/qemu/monitor.c:1418
    #5 0x5567148670be in handle_hmp_command /home/elmarco/src/qemu/monitor.c:3109
    #6 0x5567148674ed in qmp_human_monitor_command /home/elmarco/src/qemu/monitor.c:613
    #7 0x556714b00918 in qmp_marshal_human_monitor_command /home/elmarco/src/qemu/build/qmp-marshal.c:1704
    #8 0x556715138a3e in do_qmp_dispatch /home/elmarco/src/qemu/qapi/qmp-dispatch.c:104
    #9 0x556715138f83 in qmp_dispatch /home/elmarco/src/qemu/qapi/qmp-dispatch.c:131
    #10 0x55671485cf88 in handle_qmp_command /home/elmarco/src/qemu/monitor.c:3839
    #11 0x55671514e80b in json_message_process_token /home/elmarco/src/qemu/qobject/json-streamer.c:105
    #12 0x5567151bf2dc in json_lexer_feed_char /home/elmarco/src/qemu/qobject/json-lexer.c:323
    #13 0x5567151bf827 in json_lexer_feed /home/elmarco/src/qemu/qobject/json-lexer.c:373
    #14 0x55671514ee62 in json_message_parser_feed /home/elmarco/src/qemu/qobject/json-streamer.c:124
    #15 0x556714854b1f in monitor_qmp_read /home/elmarco/src/qemu/monitor.c:3881
    #16 0x556715045440 in qemu_chr_be_write_impl /home/elmarco/src/qemu/chardev/char.c:172
    #17 0x556715047184 in qemu_chr_be_write /home/elmarco/src/qemu/chardev/char.c:184
    #18 0x55671505a8e6 in tcp_chr_read /home/elmarco/src/qemu/chardev/char-socket.c:440
    #19 0x5567150943c3 in qio_channel_fd_source_dispatch /home/elmarco/src/qemu/io/channel-watch.c:84
    #20 0x7fb90292b90b in g_main_dispatch ../glib/gmain.c:3182
    #21 0x7fb90292c7ac in g_main_context_dispatch ../glib/gmain.c:3847
    #22 0x556715162eca in glib_pollfds_poll /home/elmarco/src/qemu/util/main-loop.c:214
    #23 0x556715163001 in os_host_main_loop_wait /home/elmarco/src/qemu/util/main-loop.c:261
    #24 0x5567151631fa in main_loop_wait /home/elmarco/src/qemu/util/main-loop.c:515
    #25 0x556714ad6d3b in main_loop /home/elmarco/src/qemu/vl.c:1950
    #26 0x556714ade329 in main /home/elmarco/src/qemu/vl.c:4865
    #27 0x7fb8fe5c9009 in __libc_start_main (/lib64/libc.so.6+0x21009)
    #28 0x5567147af4d9 in _start (/home/elmarco/src/qemu/build/s390x-softmmu/qemu-system-s390x+0xf674d9)

0x556715a1f120 is located 32 bytes to the left of global variable 'char_hci_type_info' defined in '/home/elmarco/src/qemu/hw/bt/hci-csr.c:493:23' (0x556715a1f140) of size 104
0x556715a1f120 is located 8 bytes to the right of global variable 's390_opcodes' defined in '/home/elmarco/src/qemu/disas/s390.c:860:33' (0x556715a15280) of size 40600

This fix is based on Andreas Arnez <arnez@linux.vnet.ibm.com> upstream
commit:
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commitdiff;h=9ace48f3d7d80ce09c5df60cccb433470410b11b

2014-08-19  Andreas Arnez  <arnez@linux.vnet.ibm.com>

       * s390-dis.c (init_disasm): Simplify initialization of
       opc_index[].  This also fixes an access after the last element
       of s390_opcodes[].

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20180104160523.22995-19-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-01-16 14:54:50 +01:00
Peter Maydell
48d4ab25e7 disas: Clean up includes
Clean up includes so that osdep.h is included first and headers
which it implies are not included manually.

This commit was created with scripts/clean-includes.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1454089805-5470-7-git-send-email-peter.maydell@linaro.org
2016-02-04 17:41:30 +00:00
Veres Lajos
67cc32ebfd typofixes - v4
Signed-off-by: Veres Lajos <vlajos@gmail.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-09-11 10:45:43 +03:00
Peter Maydell
5b27940770 disas/s390.c: Remove unused variables
The variables s390_opformats and s390_num_opformats are unused and
provoke clang warnings:

disas/s390.c:849:33: warning: variable 's390_opformats' is not needed and will not be emitted [-Wunneeded-internal-declaration]
static const struct s390_opcode s390_opformats[] =
                                ^
disas/s390.c:875:18: warning: unused variable 's390_num_opformats' [-Wunused-const-variable]
static const int s390_num_opformats =
                 ^

Delete them, since QEMU doesn't use them.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Message-id: 1419373100-17690-3-git-send-email-peter.maydell@linaro.org
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-02-03 12:27:05 -08:00
Richard Henderson
79be7c7b60 target-s390: Fix disassembly of cpsdr
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:00:00 -08:00
Richard Henderson
0fd81617fa target-s390: Disassemble more z10 and z196 opcodes
Also fix disassembly for COMPARE AND BRANCH.  The table must be
sorted by primary opcode, and several were out of place.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05 12:00:00 -08:00
Paolo Bonzini
76cad71136 build: kill libdis, move disassemblers to disas/
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19 08:29:06 +01:00