qemu-e2k/disas
Philippe Mathieu-Daudé 2037a73997 disas/cris: Pass buffer size to format_dec() to avoid overflow warning
Propagate the buffer size to format_dec() and use snprintf().

This should silence this UBSan -Wformat-overflow warning:

  In file included from /usr/include/stdio.h:906,
                   from include/qemu/osdep.h:114,
                   from ../disas/cris.c:21:
  In function 'sprintf',
      inlined from 'format_dec' at ../disas/cris.c:1737:3,
      inlined from 'print_with_operands' at ../disas/cris.c:2477:12,
      inlined from 'print_insn_cris_generic.constprop' at ../disas/cris.c:2690:8:
  /usr/include/bits/stdio2.h:30:10: warning: null destination pointer [-Wformat-overflow=]
   30 |   return __builtin___sprintf_chk (__s, __USE_FORTIFY_LEVEL - 1,
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   31 |                                   __glibc_objsize (__s), __fmt,
      |                                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   32 |                                   __va_arg_pack ());
      |                                   ~~~~~~~~~~~~~~~~~

Reported-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20231120132222.82138-1-philmd@linaro.org>
[Rewritten to fix logic and avoid repeated expression. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-11-24 16:21:55 +01:00
..
alpha.c disas: Rename include/disas/bfd.h back to include/disas/dis-asm.h 2019-04-18 22:18:59 +02:00
capstone.c disas: use result of ->read_memory_func 2022-10-06 11:53:40 +01:00
cris.c disas/cris: Pass buffer size to format_dec() to avoid overflow warning 2023-11-24 16:21:55 +01:00
disas-internal.h disas: Move softmmu specific code to separate file 2023-05-11 09:49:55 +01:00
disas-mon.c disas: Move softmmu specific code to separate file 2023-05-11 09:49:55 +01:00
disas.c disas: Move disas.c into the target-independent source set 2023-05-11 09:51:07 +01:00
hexagon.c Hexagon (disas/hexagon.c) fix memory leak for early exit cases 2021-08-12 09:06:05 -05:00
hppa.c disas/hppa: Show hexcode of instruction along with disassembly 2023-11-17 18:36:36 +01:00
m68k.c disas/m68k: clean up local variable shadowing 2023-09-29 10:07:21 +02:00
meson.build disas/riscv: Add support for XThead* instructions 2023-07-10 22:29:14 +10:00
microblaze.c disas: Rename include/disas/bfd.h back to include/disas/dis-asm.h 2019-04-18 22:18:59 +02:00
mips.c disas/mips: Fix branch displacement for BEQZC and BNEZC 2022-10-31 11:32:07 +01:00
nanomips.c disas/nanomips: Tidy read for 48-bit opcodes 2022-11-08 01:04:25 +01:00
nios2.c disas/nios2: Simplify endianess conversion 2021-10-22 18:07:30 +02:00
riscv-xthead.c disas/riscv: Add support for XThead* instructions 2023-07-10 22:29:14 +10:00
riscv-xthead.h disas/riscv: Add support for XThead* instructions 2023-07-10 22:29:14 +10:00
riscv-xventana.c disas/riscv: Add support for XVentanaCondOps 2023-07-10 22:29:14 +10:00
riscv-xventana.h disas/riscv: Add support for XVentanaCondOps 2023-07-10 22:29:14 +10:00
riscv.c disas/riscv: Replace TABs with space 2023-11-07 11:06:02 +10:00
riscv.h disas/riscv: Add rv_codec_vror_vi for vror.vi 2023-11-07 11:06:02 +10:00
sh4.c disas/sh4: Add missing fallthrough annotations 2020-07-13 11:40:52 +02:00
sparc.c disas: Rename include/disas/bfd.h back to include/disas/dis-asm.h 2019-04-18 22:18:59 +02:00
xtensa.c disas: Rename include/disas/bfd.h back to include/disas/dis-asm.h 2019-04-18 22:18:59 +02:00