* i386-tdep.c (set_assembly_language_command): New routine to
select between i386 and i8086 instruction sets for disassembly.
New command `set assembly-language {i386 i8086}'.
This commit is contained in:
Stu Grossman
parent
be0c8b0508
commit
f33b2c132b
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@ -1,3 +1,9 @@
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Fri Jul 12 10:16:24 1996 Stu Grossman (grossman@critters.cygnus.com)
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* i386-tdep.c (set_assembly_language_command): New routine to
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select between i386 and i8086 instruction sets for disassembly.
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New command `set assembly-language {i386 i8086}'.
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Thu Jul 11 21:13:21 1996 Mark Alexander <marka@cygnus.com>
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* monitor.c (monitor_write_memory, monitor_read_memory_single):
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@ -1,5 +1,5 @@
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/* Intel 386 target-dependent stuff.
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Copyright (C) 1988, 1989, 1991, 1994 Free Software Foundation, Inc.
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Copyright (C) 1988, 1989, 1991, 1994, 1995, 1996 Free Software Foundation, Inc.
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This file is part of GDB.
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@ -15,26 +15,27 @@ GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#include "gdb_string.h"
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#include "defs.h"
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#include "gdb_string.h"
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#include "frame.h"
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#include "inferior.h"
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#include "gdbcore.h"
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#include "target.h"
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#include "floatformat.h"
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#include "symtab.h"
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#include "gdbcmd.h"
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static long i386_get_frame_setup PARAMS ((int));
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static long i386_get_frame_setup PARAMS ((CORE_ADDR));
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static void i386_follow_jump PARAMS ((void));
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static void codestream_read PARAMS ((unsigned char *, int));
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static void codestream_seek PARAMS ((int));
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static void codestream_seek PARAMS ((CORE_ADDR));
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static unsigned char codestream_fill PARAMS ((int));
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static unsigned char codestream_fill PARAMS ((int));
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/* Stdio style buffering was used to minimize calls to ptrace, but this
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buffering did not take into account that the code section being accessed
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@ -84,7 +85,7 @@ codestream_fill (peek_flag)
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static void
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codestream_seek (place)
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int place;
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CORE_ADDR place;
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{
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codestream_next_addr = place / CODESTREAM_BUFSIZ;
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codestream_next_addr *= CODESTREAM_BUFSIZ;
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@ -168,7 +169,7 @@ i386_follow_jump ()
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static long
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i386_get_frame_setup (pc)
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int pc;
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CORE_ADDR pc;
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{
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unsigned char op;
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@ -603,15 +604,14 @@ get_longjmp_target(pc)
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#endif /* GET_LONGJMP_TARGET */
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#ifdef I386_AIX_TARGET
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/* On AIX, floating point values are returned in floating point registers. */
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void
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i386_extract_return_value(type, regbuf, valbuf)
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struct type *type;
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char regbuf[REGISTER_BYTES];
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char *valbuf;
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{
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/* On AIX, floating point values are returned in floating point registers. */
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#ifdef I386_AIX_TARGET
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if (TYPE_CODE_FLT == TYPE_CODE(type))
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{
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double d;
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@ -622,11 +622,11 @@ i386_extract_return_value(type, regbuf, valbuf)
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store_floating (valbuf, TYPE_LENGTH (type), d);
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}
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else
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#endif /* I386_AIX_TARGET */
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{
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memcpy (valbuf, regbuf, TYPE_LENGTH (type));
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}
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}
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#endif /* I386_AIX_TARGET */
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#ifdef I386V4_SIGTRAMP_SAVED_PC
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/* Get saved user PC for sigtramp from the pushed ucontext on the stack
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@ -656,8 +656,60 @@ i386v4_sigtramp_saved_pc (frame)
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}
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#endif /* I386V4_SIGTRAMP_SAVED_PC */
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/* Stuff for WIN32 PE style DLL's but is pretty generic really. */
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CORE_ADDR
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skip_trampoline_code (pc, name)
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CORE_ADDR pc;
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char *name;
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{
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if (pc && read_memory_unsigned_integer (pc, 2) == 0x25ff) /* jmp *(dest) */
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{
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unsigned long indirect = read_memory_unsigned_integer (pc+2, 4);
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struct minimal_symbol *indsym =
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indirect ? lookup_minimal_symbol_by_pc (indirect) : 0;
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char *symname = indsym ? SYMBOL_NAME(indsym) : 0;
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if (symname)
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{
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if (strncmp (symname,"__imp_", 6) == 0
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|| strncmp (symname,"_imp_", 5) == 0)
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return name ? 1 : read_memory_unsigned_integer (indirect, 4);
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}
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}
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return 0; /* not a trampoline */
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}
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static char *x86_assembly_types[] = {"i386", "i8086", NULL};
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static char *x86_assembly_result = "i386";
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static void
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set_assembly_language_command (ignore, from_tty, c)
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char *ignore;
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int from_tty;
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struct cmd_list_element *c;
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{
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if (strcmp (x86_assembly_result, "i386") == 0)
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tm_print_insn = print_insn_i386;
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else
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tm_print_insn = print_insn_i8086;
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}
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void
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_initialize_i386_tdep ()
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{
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struct cmd_list_element *cmd;
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tm_print_insn = print_insn_i386;
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cmd = add_set_enum_cmd ("assembly-language", class_obscure,
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x86_assembly_types, (char *)&x86_assembly_result,
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"Set x86 instruction set to use for disassembly.\n\
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This value can be set to either i386 or i8086 to change how instructions are disassembled.",
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&setlist);
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add_show_from_set (cmd, &showlist);
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cmd->function.sfunc = set_assembly_language_command;
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}
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