diff options
Diffstat (limited to 'gdb/i386-linux-tdep.c')
| -rw-r--r-- | gdb/i386-linux-tdep.c | 67 |
1 files changed, 2 insertions, 65 deletions
diff --git a/gdb/i386-linux-tdep.c b/gdb/i386-linux-tdep.c index 6debed2..9dec83a 100644 --- a/gdb/i386-linux-tdep.c +++ b/gdb/i386-linux-tdep.c @@ -390,62 +390,6 @@ i386_canonicalize_syscall (int syscall) #define SIG_CODE_BOUNDARY_FAULT 3 -/* i386 GNU/Linux implementation of the report_signal_info - gdbarch hook. Displays information related to MPX bound - violations. */ -void -i386_linux_report_signal_info (struct gdbarch *gdbarch, struct ui_out *uiout, - enum gdb_signal siggnal) -{ - /* -Wmaybe-uninitialized */ - CORE_ADDR lower_bound = 0, upper_bound = 0, access = 0; - int is_upper; - long sig_code = 0; - - if (!i386_mpx_enabled () || siggnal != GDB_SIGNAL_SEGV) - return; - - try - { - /* Sigcode evaluates if the actual segfault is a boundary violation. */ - sig_code = parse_and_eval_long ("$_siginfo.si_code\n"); - - lower_bound - = parse_and_eval_long ("$_siginfo._sifields._sigfault._addr_bnd._lower"); - upper_bound - = parse_and_eval_long ("$_siginfo._sifields._sigfault._addr_bnd._upper"); - access - = parse_and_eval_long ("$_siginfo._sifields._sigfault.si_addr"); - } - catch (const gdb_exception_error &exception) - { - return; - } - - /* If this is not a boundary violation just return. */ - if (sig_code != SIG_CODE_BOUNDARY_FAULT) - return; - - is_upper = (access > upper_bound ? 1 : 0); - - uiout->text ("\n"); - if (is_upper) - uiout->field_string ("sigcode-meaning", _("Upper bound violation")); - else - uiout->field_string ("sigcode-meaning", _("Lower bound violation")); - - uiout->text (_(" while accessing address ")); - uiout->field_core_addr ("bound-access", gdbarch, access); - - uiout->text (_("\nBounds: [lower = ")); - uiout->field_core_addr ("lower-bound", gdbarch, lower_bound); - - uiout->text (_(", upper = ")); - uiout->field_core_addr ("upper-bound", gdbarch, upper_bound); - - uiout->text (_("]")); -} - /* Parse the arguments of current system call instruction and record the values of the registers and memory that will be changed into "record_arch_list". This instruction is "int 0x80" (Linux @@ -608,6 +552,8 @@ int i386_linux_gregset_reg_offset[] = -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + /* MPX is deprecated. Yet we keep this to not give the registers below + a new number. That could break older gdbservers. */ -1, -1, -1, -1, /* MPX registers BND0 ... BND3. */ -1, -1, /* MPX registers BNDCFGU, BNDSTATUS. */ -1, -1, -1, -1, -1, -1, -1, -1, /* k0 ... k7 (AVX512) */ @@ -721,12 +667,6 @@ i386_linux_supply_xstateregset (const struct regset *regset, i387_supply_xsave (regcache, regnum, xstateregs); } -struct type * -x86_linux_get_siginfo_type (struct gdbarch *gdbarch) -{ - return linux_get_siginfo_type_with_fields (gdbarch, LINUX_SIGINFO_FIELD_ADDR_BND); -} - /* Similar to i386_collect_fpregset, but use XSAVE extended state. */ static void @@ -1064,9 +1004,6 @@ i386_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) set_xml_syscall_file_name (gdbarch, XML_SYSCALL_FILENAME_I386); set_gdbarch_get_syscall_number (gdbarch, i386_linux_get_syscall_number); - - set_gdbarch_get_siginfo_type (gdbarch, x86_linux_get_siginfo_type); - set_gdbarch_report_signal_info (gdbarch, i386_linux_report_signal_info); } void _initialize_i386_linux_tdep (); |