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/* tc-rx.c -- Assembler for the Renesas RX
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/* tc-rx.c -- Assembler for the Renesas RX
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Copyright 2008, 2009, 2010
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Copyright 2008, 2009, 2010, 2011
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Free Software Foundation, Inc.
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Free Software Foundation, Inc.
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This file is part of GAS, the GNU Assembler.
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This file is part of GAS, the GNU Assembler.
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GAS is free software; you can redistribute it and/or modify
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GAS is free software; you can redistribute it and/or modify
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static int elf_flags = 0;
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static int elf_flags = 0;
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bfd_boolean rx_use_conventional_section_names = FALSE;
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bfd_boolean rx_use_conventional_section_names = FALSE;
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static bfd_boolean rx_use_small_data_limit = FALSE;
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static bfd_boolean rx_use_small_data_limit = FALSE;
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static bfd_boolean rx_pid_mode = FALSE;
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static int rx_num_int_regs = 0;
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int rx_pid_register;
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int rx_gp_register;
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enum options
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enum options
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{
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{
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OPTION_BIG = OPTION_MD_BASE,
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OPTION_BIG = OPTION_MD_BASE,
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OPTION_LITTLE,
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OPTION_LITTLE,
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OPTION_32BIT_DOUBLES,
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OPTION_32BIT_DOUBLES,
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OPTION_64BIT_DOUBLES,
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OPTION_64BIT_DOUBLES,
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OPTION_CONVENTIONAL_SECTION_NAMES,
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OPTION_CONVENTIONAL_SECTION_NAMES,
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OPTION_RENESAS_SECTION_NAMES,
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OPTION_RENESAS_SECTION_NAMES,
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OPTION_SMALL_DATA_LIMIT,
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OPTION_SMALL_DATA_LIMIT,
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OPTION_RELAX
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OPTION_RELAX,
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OPTION_PID,
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OPTION_INT_REGS,
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};
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};
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#define RX_SHORTOPTS ""
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#define RX_SHORTOPTS ""
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const char * md_shortopts = RX_SHORTOPTS;
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const char * md_shortopts = RX_SHORTOPTS;
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as many of their tests assume conventional section naming. */
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as many of their tests assume conventional section naming. */
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{"muse-conventional-section-names", no_argument, NULL, OPTION_CONVENTIONAL_SECTION_NAMES},
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{"muse-conventional-section-names", no_argument, NULL, OPTION_CONVENTIONAL_SECTION_NAMES},
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{"muse-renesas-section-names", no_argument, NULL, OPTION_RENESAS_SECTION_NAMES},
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{"muse-renesas-section-names", no_argument, NULL, OPTION_RENESAS_SECTION_NAMES},
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{"msmall-data-limit", no_argument, NULL, OPTION_SMALL_DATA_LIMIT},
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{"msmall-data-limit", no_argument, NULL, OPTION_SMALL_DATA_LIMIT},
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{"relax", no_argument, NULL, OPTION_RELAX},
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{"relax", no_argument, NULL, OPTION_RELAX},
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{"mpid", no_argument, NULL, OPTION_PID},
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{"mint-register", required_argument, NULL, OPTION_INT_REGS},
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{NULL, no_argument, NULL, 0}
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{NULL, no_argument, NULL, 0}
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};
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};
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size_t md_longopts_size = sizeof (md_longopts);
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size_t md_longopts_size = sizeof (md_longopts);
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int
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int
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Line 130... |
return 1;
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return 1;
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case OPTION_RELAX:
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case OPTION_RELAX:
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linkrelax = 1;
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linkrelax = 1;
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return 1;
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return 1;
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case OPTION_PID:
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rx_pid_mode = TRUE;
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elf_flags |= E_FLAG_RX_PID;
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return 1;
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case OPTION_INT_REGS:
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rx_num_int_regs = atoi (optarg);
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return 1;
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}
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}
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return 0;
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return 0;
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}
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}
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void
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void
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Line 154... |
fprintf (stream, _(" --m32bit-doubles [default]\n"));
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fprintf (stream, _(" --m32bit-doubles [default]\n"));
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fprintf (stream, _(" --m64bit-doubles\n"));
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fprintf (stream, _(" --m64bit-doubles\n"));
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fprintf (stream, _(" --muse-conventional-section-names\n"));
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fprintf (stream, _(" --muse-conventional-section-names\n"));
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fprintf (stream, _(" --muse-renesas-section-names [default]\n"));
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fprintf (stream, _(" --muse-renesas-section-names [default]\n"));
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fprintf (stream, _(" --msmall-data-limit\n"));
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fprintf (stream, _(" --msmall-data-limit\n"));
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fprintf (stream, _(" --mrelax\n"));
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fprintf (stream, _(" --mpid\n"));
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fprintf (stream, _(" --mint-register=<value>\n"));
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}
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}
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static void
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static void
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s_bss (int ignore ATTRIBUTE_UNUSED)
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s_bss (int ignore ATTRIBUTE_UNUSED)
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{
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{
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Line 603... |
/* End of list marker. */
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/* End of list marker. */
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{ NULL, NULL, 0 }
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{ NULL, NULL, 0 }
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};
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};
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static asymbol * gp_symbol;
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static asymbol * gp_symbol;
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static asymbol * rx_pid_symbol;
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static symbolS * rx_pidreg_symbol;
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static symbolS * rx_gpreg_symbol;
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void
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void
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md_begin (void)
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md_begin (void)
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{
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{
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if (rx_use_small_data_limit)
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/* Make the __gp and __pid_base symbols now rather
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/* Make the __gp symbol now rather
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than after the symbol table is frozen. We only do this
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than after the symbol table is frozen. We only do this
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when supporting small data limits because otherwise we
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when supporting small data limits because otherwise we
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pollute the symbol table. */
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pollute the symbol table. */
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/* The meta-registers %pidreg and %gpreg depend on what other
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options are specified. The __rx_*_defined symbols exist so we
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can .ifdef asm code based on what options were passed to gas,
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without needing a preprocessor */
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if (rx_pid_mode)
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{
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rx_pid_register = 13 - rx_num_int_regs;
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rx_pid_symbol = symbol_get_bfdsym (symbol_find_or_make ("__pid_base"));
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rx_pidreg_symbol = symbol_find_or_make ("__rx_pidreg_defined");
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S_SET_VALUE (rx_pidreg_symbol, rx_pid_register);
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S_SET_SEGMENT (rx_pidreg_symbol, absolute_section);
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}
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if (rx_use_small_data_limit)
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{
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if (rx_pid_mode)
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rx_gp_register = rx_pid_register - 1;
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else
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rx_gp_register = 13 - rx_num_int_regs;
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gp_symbol = symbol_get_bfdsym (symbol_find_or_make ("__gp"));
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gp_symbol = symbol_get_bfdsym (symbol_find_or_make ("__gp"));
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rx_gpreg_symbol = symbol_find_or_make ("__rx_gpreg_defined");
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S_SET_VALUE (rx_gpreg_symbol, rx_gp_register);
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S_SET_SEGMENT (rx_gpreg_symbol, absolute_section);
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}
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}
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}
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char * rx_lex_start;
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char * rx_lex_start;
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char * rx_lex_end;
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char * rx_lex_end;
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Line 2269... |
if (f->fx_addsy == NULL)
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if (f->fx_addsy == NULL)
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f->fx_done = 1;
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f->fx_done = 1;
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}
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}
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arelent **
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arelent **
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tc_gen_reloc (asection * seg ATTRIBUTE_UNUSED, fixS * fixp)
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tc_gen_reloc (asection * sec ATTRIBUTE_UNUSED, fixS * fixp)
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{
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{
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static arelent * reloc[5];
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static arelent * reloc[5];
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int is_opcode = 0;
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bfd_boolean is_opcode = FALSE;
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if (fixp->fx_r_type == BFD_RELOC_NONE)
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if (fixp->fx_r_type == BFD_RELOC_NONE)
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{
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{
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reloc[0] = NULL;
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reloc[0] = NULL;
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return reloc;
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return reloc;
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Line 2297... |
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if (fixp->fx_r_type == BFD_RELOC_RX_32_OP
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if (fixp->fx_r_type == BFD_RELOC_RX_32_OP
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&& fixp->fx_subsy)
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&& fixp->fx_subsy)
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{
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{
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fixp->fx_r_type = BFD_RELOC_RX_DIFF;
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fixp->fx_r_type = BFD_RELOC_RX_DIFF;
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is_opcode = 1;
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is_opcode = TRUE;
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}
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}
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else if (sec)
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is_opcode = sec->flags & SEC_CODE;
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/* Certain BFD relocations cannot be translated directly into
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/* Certain BFD relocations cannot be translated directly into
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a single (non-Red Hat) RX relocation, but instead need
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a single (non-Red Hat) RX relocation, but instead need
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multiple RX relocations - handle them here. */
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multiple RX relocations - handle them here. */
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switch (fixp->fx_r_type)
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switch (fixp->fx_r_type)
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Line 2332... |
reloc[3]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RX_ABS8);
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reloc[3]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RX_ABS8);
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break;
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break;
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case 2:
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case 2:
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if (!is_opcode && target_big_endian)
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if (!is_opcode && target_big_endian)
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reloc[3]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RX_ABS16_REV);
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reloc[3]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RX_ABS16_REV);
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else if (is_opcode)
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reloc[3]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RX_ABS16UL);
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else
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else
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reloc[3]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RX_ABS16);
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reloc[3]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RX_ABS16);
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break;
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break;
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case 4:
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case 4:
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if (!is_opcode && target_big_endian)
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if (!is_opcode && target_big_endian)
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