+2015-04-09 Nick Clifton <nickc@redhat.com>
+
+ * elf32-rx.c (describe_flags): Report the settings of the string
+ insn using bits.
+ (rx_elf_merge_private_bfd_data): Handle merging of the string insn
+ using bits.
+
2015-04-08 H.J. Lu <hongjiu.lu@intel.com>
* compress.c (bfd_compress_section_contents): Work around a GCC
else
strcat (buf, ", GCC ABI");
+ if (flags & E_FLAG_RX_SINSNS_SET)
+ strcat (buf, flags & E_FLAG_RX_SINSNS_YES ? ", uses String instructions" : ", bans String instructions");
+
return buf;
}
{
flagword known_flags;
+ if (old_flags & E_FLAG_RX_SINSNS_SET)
+ {
+ if ((new_flags & E_FLAG_RX_SINSNS_SET) == 0)
+ {
+ new_flags &= ~ E_FLAG_RX_SINSNS_MASK;
+ new_flags |= (old_flags & E_FLAG_RX_SINSNS_MASK);
+ }
+ }
+ else if (new_flags & E_FLAG_RX_SINSNS_SET)
+ {
+ old_flags &= ~ E_FLAG_RX_SINSNS_MASK;
+ old_flags |= (new_flags & E_FLAG_RX_SINSNS_MASK);
+ }
+
known_flags = E_FLAG_RX_ABI | E_FLAG_RX_64BIT_DOUBLES
- | E_FLAG_RX_DSP | E_FLAG_RX_PID;
+ | E_FLAG_RX_DSP | E_FLAG_RX_PID | E_FLAG_RX_SINSNS_MASK;
if ((old_flags ^ new_flags) & known_flags)
{
+2015-04-09 Nick Clifton <nickc@redhat.com>
+
+ * readelf.c (get_machine_flags): Report the setting of the string
+ insn using bits.
+
2015-04-08 H.J. Lu <hongjiu.lu@intel.com>
* objcopy.c (do_debug_sections): Add compress_zlib,
strcat (buf, ", pid");
if (e_flags & E_FLAG_RX_ABI)
strcat (buf, ", RX ABI");
+ if (e_flags & E_FLAG_RX_SINSNS_SET)
+ strcat (buf, e_flags & E_FLAG_RX_SINSNS_YES
+ ? ", uses String instructions" : ", bans String instructions");
break;
case EM_S390:
+2015-04-09 Nick Clifton <nickc@redhat.com>
+
+ * config/tc-rx.c (enum options): Add OPTION_DISALLOW_STRING_INSNS.
+ (md_longopts): Add -mno-allow-string-insns.
+ (md_parse_option): Handle -mno-allow-string-insns.
+ (md_show_usage): Mention -mno-allow-string-insns.
+ (rx_note_string_insn_use): New function. Produces an error
+ message if a string insn is used when it is not allowed.
+ * config/rx-parse.y (SCMPU): Call rx_note_string_insn_use.
+ (SMOVU, SMOVB, SMOVF, SUNTIL, SWHILE, RMPA): Likewise.
+ * config/rx-defs.h (rx_note_string_insn_use): Prototype.
+ * doc/c-rx.texi: Document -mno-allow-string-insns.
+
2015-04-08 H.J. Lu <hongjiu.lu@intel.com>
* as.c (show_usage): Update --compress-debug-sections.
extern void rx_linkrelax_branch (void);
extern int rx_parse (void);
extern int rx_wrap (void);
+extern void rx_note_string_insn_use (void);
extern char * rx_lex_start;
extern char * rx_lex_end;
/* ---------------------------------------------------------------------- */
| SCMPU
- { B2 (0x7f, 0x83); }
+ { B2 (0x7f, 0x83); rx_note_string_insn_use (); }
| SMOVU
- { B2 (0x7f, 0x87); }
+ { B2 (0x7f, 0x87); rx_note_string_insn_use (); }
| SMOVB
- { B2 (0x7f, 0x8b); }
+ { B2 (0x7f, 0x8b); rx_note_string_insn_use (); }
| SMOVF
- { B2 (0x7f, 0x8f); }
+ { B2 (0x7f, 0x8f); rx_note_string_insn_use (); }
/* ---------------------------------------------------------------------- */
| SUNTIL bwl
- { B2 (0x7f, 0x80); F ($2, 14, 2); }
+ { B2 (0x7f, 0x80); F ($2, 14, 2); rx_note_string_insn_use (); }
| SWHILE bwl
- { B2 (0x7f, 0x84); F ($2, 14, 2); }
+ { B2 (0x7f, 0x84); F ($2, 14, 2); rx_note_string_insn_use (); }
| SSTR bwl
{ B2 (0x7f, 0x88); F ($2, 14, 2); }
/* ---------------------------------------------------------------------- */
| RMPA bwl
- { B2 (0x7f, 0x8c); F ($2, 14, 2); }
+ { B2 (0x7f, 0x8c); F ($2, 14, 2); rx_note_string_insn_use (); }
/* ---------------------------------------------------------------------- */
OPTION_USES_GCC_ABI,
OPTION_USES_RX_ABI,
OPTION_CPU,
+ OPTION_DISALLOW_STRING_INSNS,
};
#define RX_SHORTOPTS ""
{"mint-register", required_argument, NULL, OPTION_INT_REGS},
{"mgcc-abi", no_argument, NULL, OPTION_USES_GCC_ABI},
{"mrx-abi", no_argument, NULL, OPTION_USES_RX_ABI},
- {"mcpu",required_argument,NULL,OPTION_CPU},
+ {"mcpu", required_argument, NULL, OPTION_CPU},
+ {"mno-allow-string-insns", no_argument, NULL, OPTION_DISALLOW_STRING_INSNS},
{NULL, no_argument, NULL, 0}
};
size_t md_longopts_size = sizeof (md_longopts);
break;
}
return 1;
+
+ case OPTION_DISALLOW_STRING_INSNS:
+ elf_flags |= E_FLAG_RX_SINSNS_SET | E_FLAG_RX_SINSNS_NO;
+ return 1;
}
return 0;
}
fprintf (stream, _(" --mpid\n"));
fprintf (stream, _(" --mint-register=<value>\n"));
fprintf (stream, _(" --mcpu=<rx100|rx200|rx600|rx610>\n"));
+ fprintf (stream, _(" --mno-allow-string-insns"));
}
static void
return reloc;
}
+void
+rx_note_string_insn_use (void)
+{
+ if ((elf_flags & E_FLAG_RX_SINSNS_MASK) == (E_FLAG_RX_SINSNS_SET | E_FLAG_RX_SINSNS_NO))
+ as_bad (_("Use of an RX string instruction detected in a file being assembled without string instruction support"));
+ elf_flags |= E_FLAG_RX_SINSNS_SET | E_FLAG_RX_SINSNS_YES;
+}
+
/* Set the ELF specific flags. */
void
cpu names. Attempting to assemble an instruction not supported by the
indicated cpu type will result in an error message being generated.
+@cindex @samp{-mno-allow-string-insns}
+@item -mno-allow-string-insns
+This option tells the assembler to mark the object file that it is
+building as one that does not use the string instructions
+@code{SMOVF}, @code{SCMPU}, @code {SMOVB}, @code{SMOVU}, @code{SUNTIL}
+@code {SWHILE} or the @code {RMPA} instruction. In addition the mark
+tells the linker to complain if an attempt is made to link the binary
+with another one that does use any of these instructions.
+
+Note - the inverse of this option, @code{-mallow-string-insns}, is
+not needed. The assembler automatically detects the use of the
+the instructions in the source code and labels the resulting
+object file appropriately. If no string instructions are detected
+then the object file is labelled as being one that can be linked with
+either string-using or string-banned object files.
@end table
@node RX-Modifiers
+2015-04-09 Nick Clifton <nickc@redhat.com>
+
+ * rx.h (E_FLAG_RX_SINSNS_SET): New bit in e_flags field.
+ (E_FLAG_RX_SINSNS_YES): Likewise.
+ (E_FLAG_RX_SINSNS_MASK): New define.
+
2015-04-03 H.J. Lu <hongjiu.lu@intel.com>
* external.h (Elf32_External_Chdr): New.
#define E_FLAG_RX_PID (1 << 2) /* Unofficial - DJ */
#define E_FLAG_RX_ABI (1 << 3) /* Binary passes stacked arguments using natural alignment. Unofficial - NC. */
+#define E_FLAG_RX_SINSNS_SET (1 << 6) /* Set if bit-5 is significant. */
+#define E_FLAG_RX_SINSNS_YES (1 << 7) /* Set if string instructions are used in the binary. */
+#define E_FLAG_RX_SINSNS_NO 0 /* Bit-5 if this binary must not be linked with a string instruction using binary. */
+#define E_FLAG_RX_SINSNS_MASK (3 << 6) /* Mask of bits used to determine string instruction use. */
+
/* These define the addend field of R_RX_RH_RELAX relocations. */
#define RX_RELAXA_IMM6 0x00000010 /* Imm8/16/24/32 at bit offset 6. */
#define RX_RELAXA_IMM12 0x00000020 /* Imm8/16/24/32 at bit offset 12. */
projects / binutils-gdb.git / commitdiff