/* tc-alpha.c - Processor-specific code for the DEC Alpha AXP CPU.
- Copyright (C) 1989, 93, 94, 95, 96, 1997, 1998 Free Software Foundation, Inc.
+ Copyright (C) 1989, 93-98, 1999 Free Software Foundation, Inc.
Contributed by Carnegie Mellon University, 1993.
Written by Alessandro Forin, based on earlier gas-1.38 target CPU files.
Modified by Ken Raeburn for gas-2.x and ECOFF support.
Modified by Richard Henderson for ELF support.
- Modified by Klaus K"ampf for EVAX (openVMS/Alpha) support.
+ Modified by Klaus K"ampf for EVAX (OpenVMS/Alpha) support.
This file is part of GAS, the GNU Assembler.
#include "as.h"
#include "subsegs.h"
+#include "struc-symbol.h"
+#include "ecoff.h"
#include "opcode/alpha.h"
\f
/* Local types */
+#define TOKENIZE_ERROR -1
+#define TOKENIZE_ERROR_REPORT -2
+
#define MAX_INSN_FIXUPS 2
#define MAX_INSN_ARGS 5
unsigned insn;
int nfixups;
struct alpha_fixup fixups[MAX_INSN_FIXUPS];
+ unsigned sequence[MAX_INSN_FIXUPS];
};
enum alpha_macro_arg
{
- MACRO_EOA = 1, MACRO_IR, MACRO_PIR, MACRO_CPIR, MACRO_FPR, MACRO_EXP
+ MACRO_EOA = 1,
+ MACRO_IR,
+ MACRO_PIR,
+ MACRO_OPIR,
+ MACRO_CPIR,
+ MACRO_FPR,
+ MACRO_EXP,
+ MACRO_LITERAL,
+ MACRO_BASE,
+ MACRO_BYTOFF,
+ MACRO_JSR
};
struct alpha_macro
enum alpha_macro_arg argsets[16];
};
-/* Two extra symbols we want to see in our input. This is a blatent
- misuse of the expressionS.X_op field. */
+/* Extra expression types. */
+
+#define O_pregister O_md1 /* O_register, in parentheses */
+#define O_cpregister O_md2 /* + a leading comma */
+
+#ifdef RELOC_OP_P
+/* Note, the alpha_reloc_op table below depends on the ordering
+ of O_literal .. O_gprelow. */
+#define O_literal O_md3 /* !literal relocation */
+#define O_lituse_base O_md4 /* !lituse_base relocation */
+#define O_lituse_bytoff O_md5 /* !lituse_bytoff relocation */
+#define O_lituse_jsr O_md6 /* !lituse_jsr relocation */
+#define O_gpdisp O_md7 /* !gpdisp relocation */
+#define O_gprelhigh O_md8 /* !gprelhigh relocation */
+#define O_gprellow O_md9 /* !gprellow relocation */
+
+#define USER_RELOC_P(R) ((R) >= O_literal && (R) <= O_gprellow)
+#endif
-#define O_pregister (O_max+1) /* O_register, but in parentheses */
-#define O_cpregister (O_pregister+1) /* + a leading comma */
/* Macros for extracting the type and number of encoded register tokens */
PARAMS ((const char *, const expressionS *, int, int));
static int load_expression
- PARAMS ((int, const expressionS *, int *, expressionS *));
+ PARAMS ((int, const expressionS *, int *, expressionS *,
+ const expressionS *));
static void emit_ldgp PARAMS ((const expressionS *, int, const PTR));
static void emit_division PARAMS ((const expressionS *, int, const PTR));
static void s_alpha_data PARAMS ((int));
#ifndef OBJ_ELF
static void s_alpha_comm PARAMS ((int));
-#endif
-#if defined (OBJ_ECOFF) || defined (OBJ_EVAX)
static void s_alpha_rdata PARAMS ((int));
#endif
#ifdef OBJ_ECOFF
#endif
#ifdef OBJ_ELF
static void s_alpha_section PARAMS ((int));
+static void s_alpha_ent PARAMS ((int));
+static void s_alpha_end PARAMS ((int));
+static void s_alpha_mask PARAMS ((int));
+static void s_alpha_frame PARAMS ((int));
+static void s_alpha_prologue PARAMS ((int));
+static void s_alpha_coff_wrapper PARAMS ((int));
#endif
#ifdef OBJ_EVAX
static void s_alpha_section PARAMS ((int));
#endif
static void alpha_align PARAMS ((int, char *, symbolS *, int));
+#ifdef RELOC_OP_P
+static void alpha_adjust_symtab_relocs PARAMS ((bfd *, asection *, PTR));
+#endif
+
\f
/* Generic assembler global variables which must be defined by all
targets. */
-/* These are exported to relaxing code, even though we don't do any
- relaxing on this processor currently. */
-int md_short_jump_size = 4;
-int md_long_jump_size = 4;
-
/* Characters which always start a comment. */
const char comment_chars[] = "#";
{ "32addr", no_argument, NULL, OPTION_32ADDR },
#define OPTION_RELAX (OPTION_32ADDR+1)
{ "relax", no_argument, NULL, OPTION_RELAX },
+#ifdef OBJ_ELF
+#define OPTION_MDEBUG (OPTION_RELAX+1)
+#define OPTION_NO_MDEBUG (OPTION_MDEBUG+1)
+ { "mdebug", no_argument, NULL, OPTION_MDEBUG },
+ { "no-mdebug", no_argument, NULL, OPTION_NO_MDEBUG },
+#endif
{ NULL, no_argument, NULL, 0 }
};
static offsetT alpha_lit8_literal;
#endif
+/* The active .ent symbol. */
+#ifdef OBJ_ELF
+static symbolS *alpha_cur_ent_sym;
+#endif
+
/* Is the assembler not allowed to use $at? */
static int alpha_noat_on = 0;
/* Whether the debugging option was seen. */
static int alpha_debug;
+#ifdef OBJ_ELF
+/* Whether we are emitting an mdebug section. */
+int alpha_flag_mdebug = 1;
+#endif
+
/* Don't fully resolve relocations, allowing code movement in the linker. */
static int alpha_flag_relax;
* longer than 64 characters, else longer symbol names are truncated.
*/
+#endif
+\f
+#ifdef RELOC_OP_P
+/* A table to map the spelling of a relocation operand into an appropriate
+ bfd_reloc_code_real_type type. The table is assumed to be ordered such
+ that op-O_literal indexes into it. */
+
+#define ALPHA_RELOC_TABLE(op) \
+&alpha_reloc_op[ ((!USER_RELOC_P (op)) \
+ ? (abort (), 0) \
+ : (int)(op) - (int)O_literal) ]
+
+#define LITUSE_BASE 1
+#define LITUSE_BYTOFF 2
+#define LITUSE_JSR 3
+
+static const struct alpha_reloc_op_tag {
+ const char *name; /* string to lookup */
+ size_t length; /* size of the string */
+ bfd_reloc_code_real_type reloc; /* relocation before frob */
+ operatorT op; /* which operator to use */
+ int lituse; /* addened to specify lituse */
+} alpha_reloc_op[] = {
+
+ {
+ "literal", /* name */
+ sizeof ("literal")-1, /* length */
+ BFD_RELOC_ALPHA_USER_LITERAL, /* reloc */
+ O_literal, /* op */
+ 0, /* lituse */
+ },
+
+ {
+ "lituse_base", /* name */
+ sizeof ("lituse_base")-1, /* length */
+ BFD_RELOC_ALPHA_USER_LITUSE_BASE, /* reloc */
+ O_lituse_base, /* op */
+ LITUSE_BASE, /* lituse */
+ },
+
+ {
+ "lituse_bytoff", /* name */
+ sizeof ("lituse_bytoff")-1, /* length */
+ BFD_RELOC_ALPHA_USER_LITUSE_BYTOFF, /* reloc */
+ O_lituse_bytoff, /* op */
+ LITUSE_BYTOFF, /* lituse */
+ },
+
+ {
+ "lituse_jsr", /* name */
+ sizeof ("lituse_jsr")-1, /* length */
+ BFD_RELOC_ALPHA_USER_LITUSE_JSR, /* reloc */
+ O_lituse_jsr, /* op */
+ LITUSE_JSR, /* lituse */
+ },
+
+ {
+ "gpdisp", /* name */
+ sizeof ("gpdisp")-1, /* length */
+ BFD_RELOC_ALPHA_USER_GPDISP, /* reloc */
+ O_gpdisp, /* op */
+ 0, /* lituse */
+ },
+
+ {
+ "gprelhigh", /* name */
+ sizeof ("gprelhigh")-1, /* length */
+ BFD_RELOC_ALPHA_USER_GPRELHIGH, /* reloc */
+ O_gprelhigh, /* op */
+ 0, /* lituse */
+ },
+
+ {
+ "gprellow", /* name */
+ sizeof ("gprellow")-1, /* length */
+ BFD_RELOC_ALPHA_USER_GPRELLOW, /* reloc */
+ O_gprellow, /* op */
+ 0, /* lituse */
+ },
+};
+
+static const int alpha_num_reloc_op
+ = sizeof(alpha_reloc_op) / sizeof(*alpha_reloc_op);
+
+/* Maximum # digits needed to hold the largest sequence # */
+#define ALPHA_RELOC_DIGITS 25
+
+/* Whether a sequence number is valid. */
+#define ALPHA_RELOC_SEQUENCE_OK(X) ((X) > 0 && ((unsigned)(X)) == (X))
+
+/* Structure to hold explict sequence information. */
+struct alpha_literal_tag
+{
+ fixS *lituse; /* head of linked list of !literals */
+ segT segment; /* segment relocs are in or undefined_section*/
+ int multi_section_p; /* True if more than one section was used */
+ unsigned sequence; /* sequence # */
+ unsigned n_literals; /* # of literals */
+ unsigned n_lituses; /* # of lituses */
+ char string[1]; /* printable form of sequence to hash with */
+};
+
+/* Hash table to link up literals with the appropriate lituse */
+static struct hash_control *alpha_literal_hash;
#endif
\f
/* A table of CPU names and opcode sets. */
{ "21066", AXP_OPCODE_BASE|AXP_OPCODE_EV4 },
{ "21068", AXP_OPCODE_BASE|AXP_OPCODE_EV4 },
{ "21164", AXP_OPCODE_BASE|AXP_OPCODE_EV5 },
- /* Do we have CIX extension here? */
{ "21164a", AXP_OPCODE_BASE|AXP_OPCODE_EV5|AXP_OPCODE_BWX },
- /* Still same PALcodes? */
{ "21164pc", (AXP_OPCODE_BASE|AXP_OPCODE_EV5|AXP_OPCODE_BWX
|AXP_OPCODE_MAX) },
- /* All new PALcodes? Extras? */
- { "21264", (AXP_OPCODE_BASE|AXP_OPCODE_BWX
- |AXP_OPCODE_CIX|AXP_OPCODE_MAX) },
+ { "21264", (AXP_OPCODE_BASE|AXP_OPCODE_EV6|AXP_OPCODE_BWX
+ |AXP_OPCODE_MAX|AXP_OPCODE_CIX) },
{ "ev4", AXP_OPCODE_BASE },
{ "ev45", AXP_OPCODE_BASE },
{ "ev5", AXP_OPCODE_BASE },
{ "ev56", AXP_OPCODE_BASE|AXP_OPCODE_BWX },
{ "pca56", AXP_OPCODE_BASE|AXP_OPCODE_BWX|AXP_OPCODE_MAX },
- { "ev6", AXP_OPCODE_BASE|AXP_OPCODE_BWX|AXP_OPCODE_CIX|AXP_OPCODE_MAX },
+ { "ev6", AXP_OPCODE_BASE|AXP_OPCODE_BWX|AXP_OPCODE_MAX|AXP_OPCODE_CIX },
{ "all", AXP_OPCODE_BASE },
- { 0 }
+ { 0, 0 }
};
/* The macro table */
static const struct alpha_macro alpha_macros[] = {
/* Load/Store macros */
{ "lda", emit_lda, NULL,
- { MACRO_IR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_IR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_LITERAL, MACRO_BASE, MACRO_EOA } },
{ "ldah", emit_ldah, NULL,
{ MACRO_IR, MACRO_EXP, MACRO_EOA } },
{ "ldl", emit_ir_load, "ldl",
- { MACRO_IR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_IR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_EOA } },
{ "ldl_l", emit_ir_load, "ldl_l",
- { MACRO_IR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_IR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_EOA } },
{ "ldq", emit_ir_load, "ldq",
- { MACRO_IR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_IR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_LITERAL, MACRO_EOA } },
{ "ldq_l", emit_ir_load, "ldq_l",
- { MACRO_IR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_IR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_EOA } },
{ "ldq_u", emit_ir_load, "ldq_u",
- { MACRO_IR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_IR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_EOA } },
{ "ldf", emit_loadstore, "ldf",
- { MACRO_FPR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_FPR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_FPR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_EOA } },
{ "ldg", emit_loadstore, "ldg",
- { MACRO_FPR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_FPR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_FPR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_EOA } },
{ "lds", emit_loadstore, "lds",
- { MACRO_FPR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_FPR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_FPR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_EOA } },
{ "ldt", emit_loadstore, "ldt",
- { MACRO_FPR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_FPR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_FPR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_EOA } },
{ "ldb", emit_ldX, (PTR)0,
- { MACRO_IR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_IR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_EOA } },
{ "ldbu", emit_ldXu, (PTR)0,
- { MACRO_IR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_IR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_EOA } },
{ "ldw", emit_ldX, (PTR)1,
- { MACRO_IR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_IR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_EOA } },
{ "ldwu", emit_ldXu, (PTR)1,
- { MACRO_IR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_IR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_EOA } },
{ "uldw", emit_uldX, (PTR)1,
- { MACRO_IR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_IR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_EOA } },
{ "uldwu", emit_uldXu, (PTR)1,
- { MACRO_IR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_IR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_EOA } },
{ "uldl", emit_uldX, (PTR)2,
- { MACRO_IR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_IR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_EOA } },
{ "uldlu", emit_uldXu, (PTR)2,
- { MACRO_IR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_IR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_EOA } },
{ "uldq", emit_uldXu, (PTR)3,
- { MACRO_IR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_IR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_EOA } },
{ "ldgp", emit_ldgp, NULL,
{ MACRO_IR, MACRO_EXP, MACRO_PIR, MACRO_EOA } },
#endif
{ "stl", emit_loadstore, "stl",
- { MACRO_IR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_IR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_EOA } },
{ "stl_c", emit_loadstore, "stl_c",
- { MACRO_IR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_IR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_EOA } },
{ "stq", emit_loadstore, "stq",
- { MACRO_IR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_IR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_EOA } },
{ "stq_c", emit_loadstore, "stq_c",
- { MACRO_IR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_IR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_EOA } },
{ "stq_u", emit_loadstore, "stq_u",
- { MACRO_IR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_IR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_EOA } },
{ "stf", emit_loadstore, "stf",
- { MACRO_FPR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_FPR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_FPR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_EOA } },
{ "stg", emit_loadstore, "stg",
- { MACRO_FPR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_FPR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_FPR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_EOA } },
{ "sts", emit_loadstore, "sts",
- { MACRO_FPR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_FPR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_FPR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_EOA } },
{ "stt", emit_loadstore, "stt",
- { MACRO_FPR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_FPR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_FPR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_EOA } },
{ "stb", emit_stX, (PTR)0,
- { MACRO_IR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_IR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_EOA } },
{ "stw", emit_stX, (PTR)1,
- { MACRO_IR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_IR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_EOA } },
{ "ustw", emit_ustX, (PTR)1,
- { MACRO_IR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_IR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_EOA } },
{ "ustl", emit_ustX, (PTR)2,
- { MACRO_IR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_IR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_EOA } },
{ "ustq", emit_ustX, (PTR)3,
- { MACRO_IR, MACRO_EXP, MACRO_PIR, MACRO_EOA,
- MACRO_IR, MACRO_EXP, MACRO_EOA } },
+ { MACRO_IR, MACRO_EXP, MACRO_OPIR, MACRO_BASE, MACRO_EOA } },
/* Arithmetic macros */
#if 0
MACRO_IR, MACRO_EXP, MACRO_EOA */ } },
{ "jsr", emit_jsrjmp, "jsr",
- { MACRO_PIR, MACRO_EXP, MACRO_EOA,
- MACRO_PIR, MACRO_EOA,
- MACRO_IR, MACRO_EXP, MACRO_EOA,
- MACRO_EXP, MACRO_EOA } },
+ { MACRO_PIR, MACRO_EXP, MACRO_JSR, MACRO_EOA,
+ MACRO_PIR, MACRO_JSR, MACRO_EOA,
+ MACRO_IR, MACRO_EXP, MACRO_JSR, MACRO_EOA,
+ MACRO_EXP, MACRO_JSR, MACRO_EOA } },
{ "jmp", emit_jsrjmp, "jmp",
- { MACRO_PIR, MACRO_EXP, MACRO_EOA,
- MACRO_PIR, MACRO_EOA,
- MACRO_IR, MACRO_EXP, MACRO_EOA,
- MACRO_EXP, MACRO_EOA } },
+ { MACRO_PIR, MACRO_EXP, MACRO_JSR, MACRO_EOA,
+ MACRO_PIR, MACRO_JSR, MACRO_EOA,
+ MACRO_IR, MACRO_EXP, MACRO_JSR, MACRO_EOA,
+ MACRO_EXP, MACRO_JSR, MACRO_EOA } },
{ "ret", emit_retjcr, "ret",
{ MACRO_IR, MACRO_EXP, MACRO_EOA,
MACRO_IR, MACRO_EOA,
MACRO_EOA } },
};
-static const int alpha_num_macros
+static const unsigned int alpha_num_macros
= sizeof(alpha_macros) / sizeof(*alpha_macros);
\f
/* Public interface functions */
{
unsigned int i;
+ /* Verify that X_op field is wide enough. */
+ {
+ expressionS e;
+ e.X_op = O_max;
+ assert (e.X_op == O_max);
+ }
+
/* Create the opcode hash table */
alpha_opcode_hash = hash_new ();
#ifdef OBJ_ELF
if (ECOFF_DEBUGGING)
{
- segT sec;
-
- sec = subseg_new(".mdebug", (subsegT)0);
+ segT sec = subseg_new(".mdebug", (subsegT)0);
bfd_set_section_flags(stdoutput, sec, SEC_HAS_CONTENTS|SEC_READONLY);
bfd_set_section_alignment(stdoutput, sec, 3);
-
-#ifdef ERIC_neverdef
- sec = subseg_new(".reginfo", (subsegT)0);
- /* The ABI says this section should be loaded so that the running
- program can access it. */
- bfd_set_section_flags(stdoutput, sec,
- SEC_ALLOC|SEC_LOAD|SEC_READONLY|SEC_DATA);
- bfd_set_section_alignement(stdoutput, sec, 3);
-#endif
}
#endif /* OBJ_ELF */
subseg_set(text_section, 0);
+
+#ifdef RELOC_OP_P
+ /* Create literal lookup hash table. */
+ alpha_literal_hash = hash_new();
+#endif
}
/* The public interface to the instruction assembler. */
{
char opname[32]; /* current maximum is 13 */
expressionS tok[MAX_INSN_ARGS];
- int ntok, opnamelen, trunclen;
+ int ntok, trunclen;
+ size_t opnamelen;
/* split off the opcode */
- opnamelen = strspn (str, "abcdefghijklmnopqrstuvwxyz_/48");
+ opnamelen = strspn (str, "abcdefghijklmnopqrstuvwxyz_/46819");
trunclen = (opnamelen < sizeof (opname) - 1
? opnamelen
: sizeof (opname) - 1);
/* tokenize the rest of the line */
if ((ntok = tokenize_arguments (str + opnamelen, tok, MAX_INSN_ARGS)) < 0)
{
- as_bad (_("syntax error"));
+ if (ntok != TOKENIZE_ERROR_REPORT)
+ as_bad (_("syntax error"));
+
return;
}
alpha_flag_relax = 1;
break;
+#ifdef OBJ_ELF
+ case OPTION_MDEBUG:
+ alpha_flag_mdebug = 1;
+ break;
+ case OPTION_NO_MDEBUG:
+ alpha_flag_mdebug = 0;
+ break;
+#endif
+
default:
return 0;
}
Alpha options:\n\
-32addr treat addresses as 32-bit values\n\
-F lack floating point instructions support\n\
--m21064 | -m21066 | -m21164 | -m21164a\n\
--mev4 | -mev45 | -mev5 | -mev56 | -mall\n\
- specify variant of Alpha architecture\n"),
+-mev4 | -mev45 | -mev5 | -mev56 | -mpca56 | -mev6 | -mall\n\
+ specify variant of Alpha architecture\n\
+-m21064 | -m21066 | -m21164 | -m21164a | -m21164pc | -m21264\n\
+ these variants include PALcode opcodes\n"),
stream);
#ifdef OBJ_EVAX
fputs (_("\
#endif
do_reloc_gp:
- fixP->fx_addsy = section_symbol (absolute_section);
+ fixP->fx_addsy = section_symbol (now_seg);
md_number_to_chars (fixpos, value, 2);
break;
return 1;
#endif
+#ifdef RELOC_OP_P
+ case BFD_RELOC_ALPHA_USER_LITERAL:
+ case BFD_RELOC_ALPHA_USER_LITUSE_BASE:
+ case BFD_RELOC_ALPHA_USER_LITUSE_BYTOFF:
+ case BFD_RELOC_ALPHA_USER_LITUSE_JSR:
+ return 1;
+
+ case BFD_RELOC_ALPHA_USER_GPDISP:
+ case BFD_RELOC_ALPHA_USER_GPRELHIGH:
+ case BFD_RELOC_ALPHA_USER_GPRELLOW:
+ abort ();
+#endif
+
default:
{
const struct alpha_operand *operand;
as_fatal (_("unhandled relocation type %s"),
bfd_get_reloc_code_name (fixP->fx_r_type));
- assert (-(int)fixP->fx_r_type < alpha_num_operands);
+ assert (-(int)fixP->fx_r_type < (int)alpha_num_operands);
operand = &alpha_operands[-(int)fixP->fx_r_type];
/* The rest of these fixups only exist internally during symbol
Therefore they must be completely resolved as constants. */
if (fixP->fx_addsy != 0
- && fixP->fx_addsy->bsym->section != absolute_section)
+ && S_GET_SEGMENT (fixP->fx_addsy) != absolute_section)
as_bad_where (fixP->fx_file, fixP->fx_line,
_("non-absolute expression in constant field"));
#ifdef OBJ_EVAX
case BFD_RELOC_ALPHA_LINKAGE:
case BFD_RELOC_ALPHA_CODEADDR:
+#endif
+#ifdef RELOC_OP_P
+ case BFD_RELOC_ALPHA_USER_LITERAL:
+ case BFD_RELOC_ALPHA_USER_LITUSE_BASE:
+ case BFD_RELOC_ALPHA_USER_LITUSE_BYTOFF:
+ case BFD_RELOC_ALPHA_USER_LITUSE_JSR:
+ case BFD_RELOC_ALPHA_USER_GPDISP:
+ case BFD_RELOC_ALPHA_USER_GPRELHIGH:
+ case BFD_RELOC_ALPHA_USER_GPRELLOW:
#endif
return 1;
return 0;
default:
- assert((int)f->fx_r_type < 0 && -(int)f->fx_r_type < alpha_num_operands);
+ assert((int)f->fx_r_type < 0 && -(int)f->fx_r_type < (int)alpha_num_operands);
return 0;
}
}
{
#ifdef OBJ_ELF
/* Prevent all adjustments to global symbols */
- if (S_IS_EXTERN (f->fx_addsy))
+ if (S_IS_EXTERN (f->fx_addsy) || S_IS_WEAK (f->fx_addsy))
return 0;
#endif
#ifdef OBJ_ELF
case BFD_RELOC_ALPHA_ELF_LITERAL:
#endif
+#ifdef RELOC_OP_P
+ case BFD_RELOC_ALPHA_USER_LITERAL:
+#endif
#ifdef OBJ_EVAX
case BFD_RELOC_ALPHA_LINKAGE:
case BFD_RELOC_ALPHA_CODEADDR:
return 1;
case BFD_RELOC_ALPHA_LITUSE:
+#ifdef RELOC_OP_P
+ case BFD_RELOC_ALPHA_USER_LITUSE_BASE:
+ case BFD_RELOC_ALPHA_USER_LITUSE_BYTOFF:
+ case BFD_RELOC_ALPHA_USER_LITUSE_JSR:
+ case BFD_RELOC_ALPHA_USER_GPDISP:
+ case BFD_RELOC_ALPHA_USER_GPRELHIGH:
+ case BFD_RELOC_ALPHA_USER_GPRELLOW:
+#endif
return 0;
case BFD_RELOC_GPREL32:
default:
assert ((int)f->fx_r_type < 0
- && - (int)f->fx_r_type < alpha_num_operands);
+ && - (int)f->fx_r_type < (int)alpha_num_operands);
return 1;
}
/*NOTREACHED*/
arelent *
tc_gen_reloc (sec, fixp)
- asection *sec;
+ asection *sec ATTRIBUTE_UNUSED;
fixS *fixp;
{
arelent *reloc;
reloc = (arelent *) xmalloc (sizeof (arelent));
- reloc->sym_ptr_ptr = &fixp->fx_addsy->bsym;
+ reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
+ *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
/* Make sure none of our internal relocations make it this far.
* at assembly time. bfd_perform_reloc doesn't know about this sort
* of thing, and as a result we need to fake it out here.
*/
- if (S_IS_EXTERN (fixp->fx_addsy) && !S_IS_COMMON(fixp->fx_addsy))
- reloc->addend -= fixp->fx_addsy->bsym->value;
+ if ((S_IS_EXTERN (fixp->fx_addsy) || S_IS_WEAK (fixp->fx_addsy))
+ && !S_IS_COMMON(fixp->fx_addsy))
+ reloc->addend -= symbol_get_bfdsym (fixp->fx_addsy)->value;
#endif
}
int
tc_get_register (frame)
- int frame;
+ int frame ATTRIBUTE_UNUSED;
{
int framereg = AXP_REG_SP;
#endif /* OBJ_ECOFF */
\f
+#ifdef RELOC_OP_P
+
+/* Before the relocations are written, reorder them, so that user supplied
+ !lituse relocations follow the appropriate !literal relocations. Also
+ convert the gas-internal relocations to the appropriate linker relocations.
+ */
+
+void
+alpha_adjust_symtab ()
+{
+ if (alpha_literal_hash)
+ {
+#ifdef DEBUG2_ALPHA
+ fprintf (stderr, "alpha_adjust_symtab called\n");
+#endif
+
+ /* Go over each section, reordering the relocations so that all of the
+ explicit LITUSE's are adjacent to the explicit LITERAL's */
+ bfd_map_over_sections (stdoutput, alpha_adjust_symtab_relocs, (char *) 0);
+ }
+}
+
+\f
+/* Inner function to move LITUSE's next to the LITERAL. */
+
+static void
+alpha_adjust_symtab_relocs (abfd, sec, ptr)
+ bfd *abfd;
+ asection *sec;
+ PTR ptr;
+{
+ segment_info_type *seginfo = seg_info (sec);
+ fixS **prevP;
+ fixS *fixp;
+ fixS *next;
+ fixS *lituse;
+ int n_lituses = 0;
+
+#ifdef DEBUG2_ALPHA
+ int n = 0;
+ int n_literals = 0;
+ int n_dup_literals = 0;
+#endif
+
+ /* If seginfo is NULL, we did not create this section; don't do anything with
+ it. By using a pointer to a pointer, we can update the links in place. */
+ if (seginfo == NULL)
+ return;
+
+ /* If there are no relocations, skip the section. */
+ if (! seginfo->fix_root)
+ return;
+
+ /* First rebuild the fixup chain without the expicit lituse's. */
+ prevP = &(seginfo->fix_root);
+ for (fixp = seginfo->fix_root; fixp; fixp = next)
+ {
+ next = fixp->fx_next;
+ fixp->fx_next = (fixS *)0;
+#ifdef DEBUG2_ALPHA
+ n++;
+#endif
+
+ switch (fixp->fx_r_type)
+ {
+ default:
+ *prevP = fixp;
+ prevP = &(fixp->fx_next);
+#ifdef DEBUG2_ALPHA
+ fprintf (stderr,
+ "alpha_adjust_symtab_relocs: 0x%lx, other relocation %s\n",
+ (long)fixp,
+ bfd_get_reloc_code_name (fixp->fx_r_type));
+#endif
+ break;
+
+ case BFD_RELOC_ALPHA_USER_LITERAL:
+ *prevP = fixp;
+ prevP = &(fixp->fx_next);
+ /* prevent assembler from trying to adjust the offset */
+#ifdef DEBUG2_ALPHA
+ n_literals++;
+ if (fixp->tc_fix_data.info->n_literals != 1)
+ n_dup_literals++;
+ fprintf (stderr,
+ "alpha_adjust_symtab_relocs: 0x%lx, !literal!%.6d, # literals = %2d\n",
+ (long)fixp,
+ fixp->tc_fix_data.info->sequence,
+ fixp->tc_fix_data.info->n_literals);
+#endif
+ break;
+
+ /* do not link in lituse's */
+ case BFD_RELOC_ALPHA_USER_LITUSE_BASE:
+ case BFD_RELOC_ALPHA_USER_LITUSE_BYTOFF:
+ case BFD_RELOC_ALPHA_USER_LITUSE_JSR:
+ n_lituses++;
+ if (fixp->tc_fix_data.info->n_literals == 0)
+ as_bad_where (fixp->fx_file, fixp->fx_line,
+ _("No !literal!%d was found"),
+ fixp->tc_fix_data.info->sequence);
+#ifdef DEBUG2_ALPHA
+ fprintf (stderr,
+ "alpha_adjust_symtab_relocs: 0x%lx, !lituse !%.6d, # lituses = %2d, next_lituse = 0x%lx\n",
+ (long)fixp,
+ fixp->tc_fix_data.info->sequence,
+ fixp->tc_fix_data.info->n_lituses,
+ (long)fixp->tc_fix_data.next_lituse);
+#endif
+ break;
+ }
+ }
+
+ /* If there were any lituses, go and add them to the chain, unless there is
+ more than one !literal for a given sequence number. They are linked
+ through the next_lituse field in reverse order, so as we go through the
+ next_lituse chain, we effectively reverse the chain once again. If there
+ was more than one !literal, we fall back to loading up the address w/o
+ optimization. Also, if the !literals/!lituses are spread in different
+ segments (happens in the Linux kernel semaphores), suppress the
+ optimization. */
+ if (n_lituses)
+ {
+ for (fixp = seginfo->fix_root; fixp; fixp = fixp->fx_next)
+ {
+ switch (fixp->fx_r_type)
+ {
+ default:
+ break;
+
+ case BFD_RELOC_ALPHA_USER_LITERAL:
+#ifdef OBJ_ELF
+ fixp->fx_r_type = BFD_RELOC_ALPHA_ELF_LITERAL;
+#else
+ fixp->fx_r_type = BFD_RELOC_ALPHA_LITERAL; /* XXX check this */
+#endif
+ if (fixp->tc_fix_data.info->n_literals == 1
+ && ! fixp->tc_fix_data.info->multi_section_p)
+ {
+ for (lituse = fixp->tc_fix_data.info->lituse;
+ lituse != (fixS *)0;
+ lituse = lituse->tc_fix_data.next_lituse)
+ {
+ lituse->fx_next = fixp->fx_next;
+ fixp->fx_next = lituse;
+ }
+ }
+ break;
+
+ case BFD_RELOC_ALPHA_USER_LITUSE_BASE:
+ case BFD_RELOC_ALPHA_USER_LITUSE_BYTOFF:
+ case BFD_RELOC_ALPHA_USER_LITUSE_JSR:
+ fixp->fx_r_type = BFD_RELOC_ALPHA_LITUSE;
+ break;
+ }
+ }
+ }
+
+#ifdef DEBUG2_ALPHA
+ fprintf (stderr, "alpha_adjust_symtab_relocs: %s, %d literal%s, %d duplicate literal%s, %d lituse%s\n\n",
+ sec->name,
+ n_literals, (n_literals == 1) ? "" : "s",
+ n_dup_literals, (n_dup_literals == 1) ? "" : "s",
+ n_lituses, (n_lituses == 1) ? "" : "s");
+#endif
+}
+
+#endif /* RELOC_OP_P */
+
+\f
+#ifdef DEBUG_ALPHA
+static void
+debug_exp (tok, ntok)
+ expressionS tok[];
+ int ntok;
+{
+ int i;
+
+ fprintf (stderr, "debug_exp: %d tokens", ntok);
+ for (i = 0; i < ntok; i++)
+ {
+ expressionS *t = &tok[i];
+ const char *name;
+ switch (t->X_op)
+ {
+ default: name = "unknown"; break;
+ case O_illegal: name = "O_illegal"; break;
+ case O_absent: name = "O_absent"; break;
+ case O_constant: name = "O_constant"; break;
+ case O_symbol: name = "O_symbol"; break;
+ case O_symbol_rva: name = "O_symbol_rva"; break;
+ case O_register: name = "O_register"; break;
+ case O_big: name = "O_big"; break;
+ case O_uminus: name = "O_uminus"; break;
+ case O_bit_not: name = "O_bit_not"; break;
+ case O_logical_not: name = "O_logical_not"; break;
+ case O_multiply: name = "O_multiply"; break;
+ case O_divide: name = "O_divide"; break;
+ case O_modulus: name = "O_modulus"; break;
+ case O_left_shift: name = "O_left_shift"; break;
+ case O_right_shift: name = "O_right_shift"; break;
+ case O_bit_inclusive_or: name = "O_bit_inclusive_or"; break;
+ case O_bit_or_not: name = "O_bit_or_not"; break;
+ case O_bit_exclusive_or: name = "O_bit_exclusive_or"; break;
+ case O_bit_and: name = "O_bit_and"; break;
+ case O_add: name = "O_add"; break;
+ case O_subtract: name = "O_subtract"; break;
+ case O_eq: name = "O_eq"; break;
+ case O_ne: name = "O_ne"; break;
+ case O_lt: name = "O_lt"; break;
+ case O_le: name = "O_le"; break;
+ case O_ge: name = "O_ge"; break;
+ case O_gt: name = "O_gt"; break;
+ case O_logical_and: name = "O_logical_and"; break;
+ case O_logical_or: name = "O_logical_or"; break;
+ case O_index: name = "O_index"; break;
+ case O_pregister: name = "O_pregister"; break;
+ case O_cpregister: name = "O_cpregister"; break;
+ case O_literal: name = "O_literal"; break;
+ case O_lituse_base: name = "O_lituse_base"; break;
+ case O_lituse_bytoff: name = "O_lituse_bytoff"; break;
+ case O_lituse_jsr: name = "O_lituse_jsr"; break;
+ case O_gpdisp: name = "O_gpdisp"; break;
+ case O_gprelhigh: name = "O_gprelhigh"; break;
+ case O_gprellow: name = "O_gprellow"; break;
+ case O_md10: name = "O_md10"; break;
+ case O_md11: name = "O_md11"; break;
+ case O_md12: name = "O_md12"; break;
+ case O_md13: name = "O_md13"; break;
+ case O_md14: name = "O_md14"; break;
+ case O_md15: name = "O_md15"; break;
+ case O_md16: name = "O_md16"; break;
+ }
+
+ fprintf (stderr, ", %s(%s, %s, %d)", name,
+ (t->X_add_symbol) ? S_GET_NAME (t->X_add_symbol) : "--",
+ (t->X_op_symbol) ? S_GET_NAME (t->X_op_symbol) : "--",
+ (int)t->X_add_number);
+ }
+ fprintf (stderr, "\n");
+ fflush (stderr);
+}
+#endif
+
/* Parse the arguments to an opcode. */
static int
expressionS *end_tok = tok + ntok;
char *old_input_line_pointer;
int saw_comma = 0, saw_arg = 0;
+#ifdef DEBUG_ALPHA
+ expressionS *orig_tok = tok;
+#endif
+#ifdef RELOC_OP_P
+ char *p;
+ const struct alpha_reloc_op_tag *r;
+ int c, i;
+ size_t len;
+ int reloc_found_p = 0;
+#endif
memset (tok, 0, sizeof (*tok) * ntok);
case '\0':
goto fini;
+#ifdef RELOC_OP_P
+ case '!':
+ /* A relocation operand can be placed after the normal operand on an
+ assembly language statement, and has the following form:
+ !relocation_type!sequence_number. */
+ if (reloc_found_p)
+ { /* only support one relocation op per insn */
+ as_bad (_("More than one relocation op per insn"));
+ goto err_report;
+ }
+
+ if (!saw_arg)
+ goto err;
+
+ for (p = ++input_line_pointer;
+ ((c = *p) != '!' && c != ';' && c != '#' && c != ','
+ && !is_end_of_line[c]);
+ p++)
+ ;
+
+ /* Parse !relocation_type */
+ len = p - input_line_pointer;
+ if (len == 0)
+ {
+ as_bad (_("No relocation operand"));
+ goto err_report;
+ }
+
+ if (c != '!')
+ {
+ as_bad (_("No !sequence-number after !%s"), input_line_pointer);
+ goto err_report;
+ }
+
+ r = &alpha_reloc_op[0];
+ for (i = alpha_num_reloc_op-1; i >= 0; i--, r++)
+ {
+ if (len == r->length
+ && memcmp (input_line_pointer, r->name, len) == 0)
+ break;
+ }
+ if (i < 0)
+ {
+ as_bad (_("Unknown relocation operand: !%s"), input_line_pointer);
+ goto err_report;
+ }
+
+ input_line_pointer = ++p;
+
+ /* Parse !sequence_number */
+ memset (tok, '\0', sizeof (expressionS));
+ expression (tok);
+
+ if (tok->X_op != O_constant
+ || ! ALPHA_RELOC_SEQUENCE_OK (tok->X_add_number))
+ {
+ as_bad (_("Bad sequence number: !%s!%s"), r->name, input_line_pointer);
+ goto err_report;
+ }
+
+ tok->X_op = r->op;
+ reloc_found_p = 1;
+ ++tok;
+ break;
+#endif
+
case ',':
++input_line_pointer;
if (saw_comma || !saw_arg)
default:
if (saw_arg && !saw_comma)
goto err;
+
expression (tok);
if (tok->X_op == O_illegal || tok->X_op == O_absent)
goto err;
if (saw_comma)
goto err;
input_line_pointer = old_input_line_pointer;
+
+#ifdef DEBUG_ALPHA
+ debug_exp (orig_tok, ntok - (end_tok - tok));
+#endif
+
return ntok - (end_tok - tok);
err:
input_line_pointer = old_input_line_pointer;
- return -1;
+ return TOKENIZE_ERROR;
+
+#ifdef RELOC_OP_P
+err_report:
+ input_line_pointer = old_input_line_pointer;
+ return TOKENIZE_ERROR_REPORT;
+#endif
}
/* Search forward through all variants of an opcode looking for a
case O_pregister:
case O_cpregister:
goto match_failed;
+
+ default:
+ break;
}
break;
tokidx = 0;
break;
+ /* index register */
case MACRO_IR:
if (tokidx >= ntok || tok[tokidx].X_op != O_register
|| !is_ir_num(tok[tokidx].X_add_number))
goto match_failed;
++tokidx;
break;
+
+ /* parenthesized index register */
case MACRO_PIR:
if (tokidx >= ntok || tok[tokidx].X_op != O_pregister
|| !is_ir_num(tok[tokidx].X_add_number))
goto match_failed;
++tokidx;
break;
+
+ /* optional parenthesized index register */
+ case MACRO_OPIR:
+ if (tokidx < ntok && tok[tokidx].X_op == O_pregister
+ && is_ir_num(tok[tokidx].X_add_number))
+ ++tokidx;
+ break;
+
+ /* leading comma with a parenthesized index register */
case MACRO_CPIR:
if (tokidx >= ntok || tok[tokidx].X_op != O_cpregister
|| !is_ir_num(tok[tokidx].X_add_number))
goto match_failed;
++tokidx;
break;
+
+ /* floating point register */
case MACRO_FPR:
if (tokidx >= ntok || tok[tokidx].X_op != O_register
|| !is_fpr_num(tok[tokidx].X_add_number))
++tokidx;
break;
+ /* normal expression */
case MACRO_EXP:
if (tokidx >= ntok)
goto match_failed;
case O_register:
case O_pregister:
case O_cpregister:
+#ifdef RELOC_OP_P
+ case O_literal:
+ case O_lituse_base:
+ case O_lituse_bytoff:
+ case O_lituse_jsr:
+ case O_gpdisp:
+ case O_gprelhigh:
+ case O_gprellow:
+#endif
goto match_failed;
+
+ default:
+ break;
}
++tokidx;
break;
+ /* optional !literal!<number> */
+ case MACRO_LITERAL:
+#ifdef RELOC_OP_P
+ if (tokidx < ntok && tok[tokidx].X_op == O_literal)
+ tokidx++;
+#endif
+ break;
+
+ /* optional !lituse_base!<number> */
+ case MACRO_BASE:
+#ifdef RELOC_OP_P
+ if (tokidx < ntok && tok[tokidx].X_op == O_lituse_base)
+ tokidx++;
+#endif
+ break;
+
+ /* optional !lituse_bytoff!<number> */
+ case MACRO_BYTOFF:
+#ifdef RELOC_OP_P
+ if (tokidx < ntok && tok[tokidx].X_op == O_lituse_bytoff)
+ tokidx++;
+#endif
+ break;
+
+ /* optional !lituse_jsr!<number> */
+ case MACRO_JSR:
+#ifdef RELOC_OP_P
+ if (tokidx < ntok && tok[tokidx].X_op == O_lituse_jsr)
+ tokidx++;
+#endif
+ break;
+
match_failed:
while (*arg != MACRO_EOA)
++arg;
for (argidx = opcode->operands; *argidx; ++argidx)
{
const struct alpha_operand *operand = &alpha_operands[*argidx];
- const expressionS *t;
+ const expressionS *t = (const expressionS *)0;
if (operand->flags & AXP_OPERAND_FAKE)
{
break;
case AXP_OPERAND_DEFAULT_ZERO:
{
- static const expressionS zero_exp = { 0, 0, 0, O_constant, 1 };
+ static expressionS zero_exp;
t = &zero_exp;
+ zero_exp.X_op = O_constant;
+ zero_exp.X_unsigned = 1;
}
break;
default:
/* Apply the fixups in order */
for (i = 0; i < insn->nfixups; ++i)
{
+ const struct alpha_operand *operand = (const struct alpha_operand *)0;
struct alpha_fixup *fixup = &insn->fixups[i];
int size, pcrel;
fixS *fixP;
+#ifdef RELOC_OP_P
+ char buffer[ALPHA_RELOC_DIGITS];
+ struct alpha_literal_tag *info;
+#endif
/* Some fixups are only used internally and so have no howto */
if ((int)fixup->reloc < 0)
- size = 4, pcrel = 0;
-#ifdef OBJ_ELF
- /* These relocation types are only used internally. */
- else if (fixup->reloc == BFD_RELOC_ALPHA_GPDISP_HI16
- || fixup->reloc == BFD_RELOC_ALPHA_GPDISP_LO16)
{
- size = 2, pcrel = 0;
+ operand = &alpha_operands[-(int)fixup->reloc];
+ size = 4;
+ pcrel = ((operand->flags & AXP_OPERAND_RELATIVE) != 0);
}
-#endif
- else
+ else switch (fixup->reloc)
{
- reloc_howto_type *reloc_howto
- = bfd_reloc_type_lookup (stdoutput, fixup->reloc);
- assert (reloc_howto);
+#ifdef OBJ_ELF
+ /* These relocation types are only used internally. */
+ case BFD_RELOC_ALPHA_GPDISP_HI16:
+ case BFD_RELOC_ALPHA_GPDISP_LO16:
+ size = 2;
+ pcrel = 0;
+ break;
+#endif
+#ifdef RELOC_OP_P
+ /* and these also are internal only relocations */
+ case BFD_RELOC_ALPHA_USER_LITERAL:
+ case BFD_RELOC_ALPHA_USER_LITUSE_BASE:
+ case BFD_RELOC_ALPHA_USER_LITUSE_BYTOFF:
+ case BFD_RELOC_ALPHA_USER_LITUSE_JSR:
+ case BFD_RELOC_ALPHA_USER_GPDISP:
+ case BFD_RELOC_ALPHA_USER_GPRELHIGH:
+ case BFD_RELOC_ALPHA_USER_GPRELLOW:
+ size = 2;
+ pcrel = 0;
+ break;
+#endif
- size = bfd_get_reloc_size (reloc_howto);
- pcrel = reloc_howto->pc_relative;
+ default:
+ {
+ reloc_howto_type *reloc_howto
+ = bfd_reloc_type_lookup (stdoutput, fixup->reloc);
+ assert (reloc_howto);
+
+ size = bfd_get_reloc_size (reloc_howto);
+ pcrel = reloc_howto->pc_relative;
+ }
+ assert (size >= 1 && size <= 4);
+ break;
}
- assert (size >= 1 && size <= 4);
fixP = fix_new_exp (frag_now, f - frag_now->fr_literal, size,
&fixup->exp, pcrel, fixup->reloc);
- /* Turn off complaints that the addend is too large for some fixups */
+ /* Turn off complaints that the addend is too large for some fixups,
+ and copy in the sequence number for the explicit relocations. */
switch (fixup->reloc)
{
case BFD_RELOC_ALPHA_GPDISP_LO16:
case BFD_RELOC_GPREL32:
fixP->fx_no_overflow = 1;
break;
+
+#ifdef RELOC_OP_P
+ case BFD_RELOC_ALPHA_USER_LITERAL:
+ fixP->fx_no_overflow = 1;
+ sprintf (buffer, "!%u", insn->sequence[i]);
+ info = ((struct alpha_literal_tag *)
+ hash_find (alpha_literal_hash, buffer));
+
+ if (! info)
+ {
+ size_t len = strlen (buffer);
+ const char *errmsg;
+
+ info = ((struct alpha_literal_tag *)
+ xcalloc (sizeof (struct alpha_literal_tag) + len, 1));
+
+ info->segment = now_seg;
+ info->sequence = insn->sequence[i];
+ strcpy (info->string, buffer);
+ errmsg = hash_insert (alpha_literal_hash, info->string, (PTR)info);
+ if (errmsg)
+ as_bad (errmsg);
+ }
+
+ ++info->n_literals;
+
+ if (info->segment != now_seg)
+ info->multi_section_p = 1;
+
+ fixP->tc_fix_data.info = info;
+ break;
+
+ case BFD_RELOC_ALPHA_USER_LITUSE_BASE:
+ case BFD_RELOC_ALPHA_USER_LITUSE_BYTOFF:
+ case BFD_RELOC_ALPHA_USER_LITUSE_JSR:
+ sprintf (buffer, "!%u", insn->sequence[i]);
+ info = ((struct alpha_literal_tag *)
+ hash_find (alpha_literal_hash, buffer));
+
+ if (! info)
+ {
+ size_t len = strlen (buffer);
+ const char *errmsg;
+
+ info = ((struct alpha_literal_tag *)
+ xcalloc (sizeof (struct alpha_literal_tag) + len, 1));
+
+ info->segment = now_seg;
+ info->sequence = insn->sequence[i];
+ strcpy (info->string, buffer);
+ errmsg = hash_insert (alpha_literal_hash, info->string, (PTR)info);
+ if (errmsg)
+ as_bad (errmsg);
+ }
+ info->n_lituses++;
+ fixP->tc_fix_data.info = info;
+ fixP->tc_fix_data.next_lituse = info->lituse;
+ info->lituse = fixP;
+ if (info->segment != now_seg)
+ info->multi_section_p = 1;
+
+ break;
+#endif
+
default:
+ if ((int)fixup->reloc < 0)
+ {
+ if (operand->flags & AXP_OPERAND_NOOVERFLOW)
+ fixP->fx_no_overflow = 1;
+ }
break;
}
}
}
}
+#ifdef RELOC_OP_P
+ if (ntok && USER_RELOC_P (tok[ntok-1].X_op))
+ {
+ const expressionS *reloc_exp = &tok[ntok-1];
+ const struct alpha_reloc_op_tag *r = ALPHA_RELOC_TABLE (reloc_exp->X_op);
+ as_bad (_("Cannot use !%s!%d with %s"), r->name,
+ (int)reloc_exp->X_add_number, opname);
+ ntok--;
+ }
+#endif
+
/* search opcodes */
opcode = (const struct alpha_opcode *) hash_find (alpha_opcode_hash, opname);
if (opcode)
static void
emit_ldgp (tok, ntok, unused)
const expressionS *tok;
- int ntok;
- const PTR unused;
+ int ntok ATTRIBUTE_UNUSED;
+ const PTR unused ATTRIBUTE_UNUSED;
{
#ifdef OBJ_AOUT
FIXME
expressionS newtok[3];
expressionS addend;
- /* We're going to need this symbol in md_apply_fix(). */
- (void) section_symbol (absolute_section);
+#ifdef RELOC_OP_P
+ if (ntok && USER_RELOC_P (tok[ntok-1].X_op))
+ {
+ const expressionS *reloc_exp = &tok[ntok-1];
+ const struct alpha_reloc_op_tag *r = ALPHA_RELOC_TABLE (reloc_exp->X_op);
+ as_bad (_("Cannot use !%s!%d with %s"), r->name,
+ (int)reloc_exp->X_add_number, "ldgp");
+ ntok--;
+ }
+#endif
#ifdef OBJ_ECOFF
if (regno (tok[2].X_add_number) == AXP_REG_PV)
addend = tok[1];
#ifdef OBJ_ECOFF
- assert (addend.X_op == O_constant);
+ if (addend.X_op != O_constant)
+ as_bad (_("can not resolve expression"));
addend.X_op = O_symbol;
addend.X_add_symbol = alpha_gp_symbol;
#endif
segment_info_type *seginfo = seg_info (alpha_link_section);
fixS *fixp;
- offset = -basesym->sy_obj;
+ offset = - *symbol_get_obj (basesym);
/* @@ This assumes all entries in a given section will be of the same
size... Probably correct, but unwise to rely on. */
i.e. "ldq $targ, LIT($gp); addq $targ, $0, $targ". Odd, perhaps,
but this is what OSF/1 does.
+ If explicit relocations of the form !literal!<number> are allowed,
+ and used, then explict_reloc with be an expression pointer.
+
Finally, the return value is true if the calling macro may emit a
LITUSE reloc if otherwise appropriate. */
static int
-load_expression (targreg, exp, pbasereg, poffset)
+load_expression (targreg, exp, pbasereg, poffset, explicit_reloc)
int targreg;
const expressionS *exp;
int *pbasereg;
expressionS *poffset;
+ const expressionS *explicit_reloc;
{
int emit_lituse = 0;
offsetT addend = exp->X_add_number;
assemble_tokens_to_insn ("ldq", newtok, 3, &insn);
+ assert (explicit_reloc == (const expressionS *)0);
assert (insn.nfixups == 1);
insn.fixups[0].reloc = BFD_RELOC_ALPHA_LITERAL;
#endif /* OBJ_ECOFF */
/* XXX: Disable this .got minimizing optimization so that we can get
better instruction offset knowledge in the compiler. This happens
very infrequently anyway. */
- if (1 || !range_signed_32 (addend)
- && (alpha_noat_on || targreg == AXP_REG_AT))
+ if (1 || (!range_signed_32 (addend)
+ && (alpha_noat_on || targreg == AXP_REG_AT)))
{
newtok[1] = *exp;
addend = 0;
assemble_tokens_to_insn ("ldq", newtok, 3, &insn);
assert (insn.nfixups == 1);
- insn.fixups[0].reloc = BFD_RELOC_ALPHA_ELF_LITERAL;
+ if (!explicit_reloc)
+ insn.fixups[0].reloc = BFD_RELOC_ALPHA_ELF_LITERAL;
+ else
+ {
+#ifdef RELOC_OP_P
+ insn.fixups[0].reloc
+ = (ALPHA_RELOC_TABLE (explicit_reloc->X_op))->reloc;
+ insn.sequence[0] = explicit_reloc->X_add_number;
+#else
+ abort ();
+#endif
+ }
#endif /* OBJ_ELF */
#ifdef OBJ_EVAX
offsetT link;
/* Find symbol or symbol pointer in link section. */
+ assert (explicit_reloc == (const expressionS *)0);
if (exp->X_add_symbol == alpha_evax_proc.symbol)
{
if (range_signed_16 (addend))
break;
case O_constant:
+ assert (explicit_reloc == (const expressionS *)0);
break;
case O_subtract:
/* Assume that this difference expression will be resolved to an
absolute value and that that value will fit in 16 bits. */
+ assert (explicit_reloc == (const expressionS *)0);
set_tok_reg (newtok[0], targreg);
newtok[1] = *exp;
set_tok_preg (newtok[2], basereg);
break;
default:
- abort();
+ as_bad (_("can't handle expression"));
+ addend = 0;
+ break;
}
if (!range_signed_32 (addend))
}
insn.nfixups++;
insn.fixups[0].reloc = BFD_RELOC_ALPHA_LITUSE;
- insn.fixups[0].exp.X_op = O_constant;
- insn.fixups[0].exp.X_add_number = 1;
+ insn.fixups[0].exp.X_op = O_symbol;
+ insn.fixups[0].exp.X_add_symbol = section_symbol (now_seg);
+ insn.fixups[0].exp.X_add_number = LITUSE_BASE;
emit_lituse = 0;
emit_insn (&insn);
large constants. */
static void
-emit_lda (tok, ntok, unused)
+emit_lda (tok, ntok, opname)
const expressionS *tok;
int ntok;
- const PTR unused;
+ const PTR opname;
{
int basereg;
+ const expressionS *reloc = (const expressionS *)0;
+
+#ifdef RELOC_OP_P
+ if (ntok && USER_RELOC_P (tok[ntok-1].X_op))
+ {
+ const struct alpha_reloc_op_tag *r;
+
+ reloc = &tok[ntok-1];
+ r = ALPHA_RELOC_TABLE (reloc->X_op);
+ switch (reloc->X_op)
+ {
+ default:
+ as_bad (_("Cannot use !%s!%d with %s"), r->name,
+ (int)reloc->X_add_number, (const char *)opname);
+
+ reloc = (const expressionS *)0;
+ ntok--;
+ break;
+
+ case O_literal:
+ ntok--;
+ break;
+
+ /* For lda $x,0($x)!lituse_base!y, don't use load_expression, since
+ it is really too general for our needs. Instead just generate the
+ lda directly. */
+ case O_lituse_base:
+ if (ntok != 4
+ || tok[0].X_op != O_register
+ || !is_ir_num(tok[0].X_add_number)
+ || tok[1].X_op != O_constant
+ || tok[2].X_op != O_pregister
+ || !is_ir_num(tok[2].X_add_number))
+ {
+ as_bad (_("bad instruction format for lda !%s!%d"), r->name,
+ reloc->X_add_number);
+
+ reloc = (const expressionS *)0;
+ ntok--;
+ break;
+ }
+
+ emit_loadstore (tok, ntok, "lda");
+ return;
+ }
+ }
+#endif
if (ntok == 2)
basereg = (tok[1].X_op == O_constant ? AXP_REG_ZERO : alpha_gp_register);
else
basereg = tok[2].X_add_number;
- (void) load_expression (tok[0].X_add_number, &tok[1], &basereg, NULL);
+ (void) load_expression (tok[0].X_add_number, &tok[1], &basereg, NULL, reloc);
}
/* The ldah macro differs from the ldah instruction in that it has $31
static void
emit_ldah (tok, ntok, unused)
const expressionS *tok;
- int ntok;
- const PTR unused;
+ int ntok ATTRIBUTE_UNUSED;
+ const PTR unused ATTRIBUTE_UNUSED;
{
expressionS newtok[3];
+#ifdef RELOC_OP_P
+ if (ntok && USER_RELOC_P (tok[ntok-1].X_op))
+ {
+ const expressionS *reloc_exp = &tok[ntok-1];
+ const struct alpha_reloc_op_tag *r = ALPHA_RELOC_TABLE (reloc_exp->X_op);
+ as_bad (_("Cannot use !%s!%d with %s"), r->name,
+ (int)reloc_exp->X_add_number, "ldah");
+ ntok--;
+ }
+#endif
+
newtok[0] = tok[0];
newtok[1] = tok[1];
set_tok_preg (newtok[2], AXP_REG_ZERO);
expressionS newtok[3];
struct alpha_insn insn;
+#ifdef RELOC_OP_P
+ const expressionS *reloc = (const expressionS *)0;
+
+ if (ntok && USER_RELOC_P (tok[ntok-1].X_op))
+ {
+ const struct alpha_reloc_op_tag *r;
+
+ reloc = &tok[ntok-1];
+ switch (reloc->X_op)
+ {
+ case O_lituse_base:
+ ntok--;
+ break;
+
+ case O_literal:
+ if (strcmp ((const char *)opname, "ldq") == 0)
+ {
+ emit_lda (tok, ntok, opname);
+ return;
+ }
+
+ /* fall through */
+ default:
+ ntok--;
+ r = ALPHA_RELOC_TABLE (reloc->X_op);
+ as_bad (_("Cannot use !%s!%d with %s"), r->name,
+ (int)reloc->X_add_number, (const char *)opname);
+ }
+ }
+#endif
+
if (ntok == 2)
basereg = (tok[1].X_op == O_constant ? AXP_REG_ZERO : alpha_gp_register);
else
basereg = tok[2].X_add_number;
lituse = load_expression (tok[0].X_add_number, &tok[1], &basereg,
- &newtok[1]);
+ &newtok[1], (const expressionS *)0);
newtok[0] = tok[0];
set_tok_preg (newtok[2], basereg);
assemble_tokens_to_insn ((const char *)opname, newtok, 3, &insn);
+#ifdef RELOC_OP_P
+ if (reloc)
+ {
+ int nfixups = insn.nfixups;
+ const struct alpha_reloc_op_tag *r = ALPHA_RELOC_TABLE (reloc->X_op);
+
+ assert (nfixups < MAX_INSN_FIXUPS);
+ insn.fixups[nfixups].reloc = r->reloc;
+ insn.fixups[nfixups].exp.X_op = O_symbol;
+ insn.fixups[nfixups].exp.X_add_symbol = section_symbol (now_seg);
+ insn.fixups[nfixups].exp.X_add_number = r->lituse;
+ insn.sequence[nfixups] = reloc->X_add_number;
+ insn.nfixups++;
+ }
+#endif
+
if (lituse)
{
assert (insn.nfixups < MAX_INSN_FIXUPS);
}
insn.nfixups++;
insn.fixups[0].reloc = BFD_RELOC_ALPHA_LITUSE;
- insn.fixups[0].exp.X_op = O_constant;
- insn.fixups[0].exp.X_add_number = 1;
+ insn.fixups[0].exp.X_op = O_symbol;
+ insn.fixups[0].exp.X_add_symbol = section_symbol (now_seg);
+ insn.fixups[0].exp.X_add_number = LITUSE_BASE;
}
emit_insn (&insn);
expressionS newtok[3];
struct alpha_insn insn;
+#ifdef RELOC_OP_P
+ const expressionS *reloc = (const expressionS *)0;
+
+ if (ntok && USER_RELOC_P (tok[ntok-1].X_op))
+ {
+ reloc = &tok[--ntok];
+ if (reloc->X_op != O_lituse_base)
+ {
+ const struct alpha_reloc_op_tag *r = &alpha_reloc_op[ reloc->X_md ];
+ as_bad (_("Cannot use !%s!%d with %s"), r->name,
+ (int)reloc->X_add_number, (const char *)opname);
+ }
+ }
+#endif
+
if (ntok == 2)
basereg = (tok[1].X_op == O_constant ? AXP_REG_ZERO : alpha_gp_register);
else
if (alpha_noat_on)
as_bad (_("macro requires $at register while noat in effect"));
- lituse = load_expression (AXP_REG_AT, &tok[1], &basereg, &newtok[1]);
+ lituse = load_expression (AXP_REG_AT, &tok[1], &basereg, &newtok[1],
+ (const expressionS *)0);
}
else
{
assemble_tokens_to_insn ((const char *)opname, newtok, 3, &insn);
+#ifdef RELOC_OP_P
+ if (reloc)
+ {
+ int nfixups = insn.nfixups;
+ const struct alpha_reloc_op_tag *r = ALPHA_RELOC_TABLE (reloc->X_op);
+
+ assert (nfixups < MAX_INSN_FIXUPS);
+ insn.fixups[nfixups].reloc = r->reloc;
+ insn.fixups[nfixups].exp.X_op = O_symbol;
+ insn.fixups[nfixups].exp.X_add_symbol = section_symbol (now_seg);
+ insn.fixups[nfixups].exp.X_add_number = r->lituse;
+ insn.sequence[nfixups] = reloc->X_add_number;
+ insn.nfixups++;
+ }
+#endif
+
if (lituse)
{
assert (insn.nfixups < MAX_INSN_FIXUPS);
}
insn.nfixups++;
insn.fixups[0].reloc = BFD_RELOC_ALPHA_LITUSE;
- insn.fixups[0].exp.X_op = O_constant;
- insn.fixups[0].exp.X_add_number = 1;
+ insn.fixups[0].exp.X_op = O_symbol;
+ insn.fixups[0].exp.X_add_symbol = section_symbol (now_seg);
+ insn.fixups[0].exp.X_add_number = LITUSE_BASE;
}
emit_insn (&insn);
{
expressionS newtok[3];
+#ifdef RELOC_OP_P
+ if (ntok && USER_RELOC_P (tok[ntok-1].X_op))
+ {
+ const expressionS *reloc_exp = &tok[ntok-1];
+ const struct alpha_reloc_op_tag *r
+ = ALPHA_RELOC_TABLE (reloc_exp->X_op);
+
+ as_bad (_("Cannot use !%s!%d with %s"), r->name,
+ (int)reloc_exp->X_add_number, "ldbu/ldwu");
+ ntok--;
+ }
+#endif
+
if (alpha_noat_on)
as_bad (_("macro requires $at register while noat in effect"));
emit_ldil (tok, ntok, unused)
const expressionS *tok;
int ntok;
- const PTR unused;
+ const PTR unused ATTRIBUTE_UNUSED;
{
expressionS newtok[2];
+#ifdef RELOC_OP_P
+ if (ntok && USER_RELOC_P (tok[ntok-1].X_op))
+ {
+ const expressionS *reloc_exp = &tok[ntok-1];
+ const struct alpha_reloc_op_tag *r = ALPHA_RELOC_TABLE (reloc_exp->X_op);
+ as_bad (_("Cannot use !%s!%d with %s"), r->name,
+ (int)reloc_exp->X_add_number, "ldil");
+ ntok--;
+ }
+#endif
+
memcpy (newtok, tok, sizeof(newtok));
newtok[1].X_add_number = sign_extend_32 (tok[1].X_add_number);
int bitshift = 64 - 8 * (1 << lgsize);
expressionS newtok[3];
+#ifdef RELOC_OP_P
+ if (ntok && USER_RELOC_P (tok[ntok-1].X_op))
+ {
+ const expressionS *reloc_exp = &tok[ntok-1];
+ const struct alpha_reloc_op_tag *r
+ = ALPHA_RELOC_TABLE (reloc_exp->X_op);
+
+ as_bad (_("Cannot use !%s!%d with %s"), r->name,
+ (int)reloc_exp->X_add_number, "setxt");
+ ntok--;
+ }
+#endif
+
/* emit "sll src,bits,dst" */
newtok[0] = tok[0];
symbolS *sym;
expressionS newtok[3];
+#ifdef RELOC_OP_P
+ if (ntok && USER_RELOC_P (tok[ntok-1].X_op))
+ {
+ const expressionS *reloc_exp = &tok[ntok-1];
+ const struct alpha_reloc_op_tag *r = ALPHA_RELOC_TABLE (reloc_exp->X_op);
+ as_bad (_("Cannot use !%s!%d with %s"), r->name,
+ (int)reloc_exp->X_add_number, (char char *)symname);
+ ntok--;
+ }
+#endif
+
xr = regno (tok[0].X_add_number);
yr = regno (tok[1].X_add_number);
symbolS *sym;
expressionS newtok[3];
+#ifdef RELOC_OP_P
+ if (ntok && USER_RELOC_P (tok[ntok-1].X_op))
+ {
+ const expressionS *reloc_exp = &tok[ntok-1];
+ const struct alpha_reloc_op_tag *r = ALPHA_RELOC_TABLE (reloc_exp->X_op);
+ as_bad (_("Cannot use !%s!%d with %s"), r->name,
+ (int)reloc_exp->X_add_number, (const char *)symname);
+ ntok--;
+ }
+#endif
+
xr = regno (tok[0].X_add_number);
yr = regno (tok[1].X_add_number);
expressionS newtok[3];
int r, tokidx = 0, lituse = 0;
+#ifdef RELOC_OP_P
+ if (ntok && USER_RELOC_P (tok[ntok-1].X_op))
+ {
+ const expressionS *reloc_exp = &tok[ntok-1];
+ const struct alpha_reloc_op_tag *r = ALPHA_RELOC_TABLE (reloc_exp->X_op);
+ as_bad (_("Cannot use !%s!%d with %s"), r->name,
+ (int)reloc_exp->X_add_number, opname);
+ ntok--;
+ }
+#endif
+
if (tokidx < ntok && tok[tokidx].X_op == O_register)
r = regno (tok[tokidx++].X_add_number);
else
else
{
int basereg = alpha_gp_register;
- lituse = load_expression (r = AXP_REG_PV, &tok[tokidx], &basereg, NULL);
+ lituse = load_expression (r = AXP_REG_PV, &tok[tokidx], &basereg, NULL,
+ (const expressionS *)0);
}
#endif
}
insn.nfixups++;
insn.fixups[0].reloc = BFD_RELOC_ALPHA_LITUSE;
- insn.fixups[0].exp.X_op = O_constant;
- insn.fixups[0].exp.X_add_number = 3;
+ insn.fixups[0].exp.X_op = O_symbol;
+ insn.fixups[0].exp.X_add_symbol = section_symbol (now_seg);
+ insn.fixups[0].exp.X_add_number = LITUSE_JSR;
}
emit_insn (&insn);
expressionS newtok[3];
int r, tokidx = 0;
+#ifdef RELOC_OP_P
+ if (ntok && USER_RELOC_P (tok[ntok-1].X_op))
+ {
+ const expressionS *reloc_exp = &tok[ntok-1];
+ const struct alpha_reloc_op_tag *r = ALPHA_RELOC_TABLE (reloc_exp->X_op);
+ as_bad (_("Cannot use !%s!%d with %s"), r->name,
+ (int)reloc_exp->X_add_number, opname);
+ ntok--;
+ }
+#endif
+
if (tokidx < ntok && tok[tokidx].X_op == O_register)
r = regno (tok[tokidx++].X_add_number);
else
*p = 0;
symbolP = symbol_find_or_make (name);
- *p = c;
#ifdef OBJ_EVAX
/* Make a section for the common symbol. */
new_seg = subseg_new (xstrdup (name), 0);
#endif
+ *p = c;
+
+#ifdef OBJ_EVAX
+ /* alignment might follow */
+ if (*input_line_pointer == ',')
+ {
+ offsetT align;
+
+ input_line_pointer++;
+ align = get_absolute_expression ();
+ bfd_set_section_alignment (stdoutput, new_seg, align);
+ }
+#endif
+
if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
{
as_bad (_("Ignoring attempt to re-define symbol"));
p = frag_more (temp);
new_seg->flags |= SEC_IS_COMMON;
if (! S_IS_DEFINED (symbolP))
- symbolP->bsym->section = new_seg;
+ S_SET_SEGMENT (symbolP, new_seg);
#else
S_SET_VALUE (symbolP, (valueT) temp);
#endif
subseg_set (current_section, current_subsec);
#endif
- know (symbolP->sy_frag == &zero_address_frag);
+ know (symbol_get_frag (symbolP) == &zero_address_frag);
demand_empty_rest_of_line ();
}
alpha_current_align = 0;
}
-#endif
+static void
+s_alpha_ent (dummy)
+ int dummy ATTRIBUTE_UNUSED;
+{
+ if (ECOFF_DEBUGGING)
+ ecoff_directive_ent (0);
+ else
+ {
+ char *name, name_end;
+ name = input_line_pointer;
+ name_end = get_symbol_end ();
+
+ if (! is_name_beginner (*name))
+ {
+ as_warn (_(".ent directive has no name"));
+ *input_line_pointer = name_end;
+ }
+ else
+ {
+ symbolS *sym;
+
+ if (alpha_cur_ent_sym)
+ as_warn (_("nested .ent directives"));
+
+ sym = symbol_find_or_make (name);
+ symbol_get_bfdsym (sym)->flags |= BSF_FUNCTION;
+ alpha_cur_ent_sym = sym;
+
+ /* The .ent directive is sometimes followed by a number. Not sure
+ what it really means, but ignore it. */
+ *input_line_pointer = name_end;
+ SKIP_WHITESPACE ();
+ if (*input_line_pointer == ',')
+ {
+ input_line_pointer++;
+ SKIP_WHITESPACE ();
+ }
+ if (isdigit (*input_line_pointer) || *input_line_pointer == '-')
+ (void) get_absolute_expression ();
+ }
+ demand_empty_rest_of_line ();
+ }
+}
+
+static void
+s_alpha_end (dummy)
+ int dummy ATTRIBUTE_UNUSED;
+{
+ if (ECOFF_DEBUGGING)
+ ecoff_directive_end (0);
+ else
+ {
+ char *name, name_end;
+ name = input_line_pointer;
+ name_end = get_symbol_end ();
+
+ if (! is_name_beginner (*name))
+ {
+ as_warn (_(".end directive has no name"));
+ *input_line_pointer = name_end;
+ }
+ else
+ {
+ symbolS *sym;
+
+ sym = symbol_find (name);
+ if (sym != alpha_cur_ent_sym)
+ as_warn (_(".end directive names different symbol than .ent"));
+
+ /* Create an expression to calculate the size of the function. */
+ if (sym)
+ {
+ symbol_get_obj (sym)->size =
+ (expressionS *) xmalloc (sizeof (expressionS));
+ symbol_get_obj (sym)->size->X_op = O_subtract;
+ symbol_get_obj (sym)->size->X_add_symbol
+ = symbol_new ("L0\001", now_seg, frag_now_fix (), frag_now);
+ symbol_get_obj (sym)->size->X_op_symbol = sym;
+ symbol_get_obj (sym)->size->X_add_number = 0;
+ }
+
+ alpha_cur_ent_sym = NULL;
+
+ *input_line_pointer = name_end;
+ }
+ demand_empty_rest_of_line ();
+ }
+}
+
+static void
+s_alpha_mask (fp)
+ int fp;
+{
+ if (ECOFF_DEBUGGING)
+ {
+ if (fp)
+ ecoff_directive_fmask (0);
+ else
+ ecoff_directive_mask (0);
+ }
+ else
+ discard_rest_of_line ();
+}
+
+static void
+s_alpha_frame (dummy)
+ int dummy ATTRIBUTE_UNUSED;
+{
+ if (ECOFF_DEBUGGING)
+ ecoff_directive_frame (0);
+ else
+ discard_rest_of_line ();
+}
+
+static void
+s_alpha_prologue (ignore)
+ int ignore ATTRIBUTE_UNUSED;
+{
+ symbolS *sym;
+ int arg;
+
+ arg = get_absolute_expression ();
+ demand_empty_rest_of_line ();
+
+ if (ECOFF_DEBUGGING)
+ sym = ecoff_get_cur_proc_sym ();
+ else
+ sym = alpha_cur_ent_sym;
+ know (sym != NULL);
+
+ switch (arg)
+ {
+ case 0: /* No PV required. */
+ S_SET_OTHER (sym, STO_ALPHA_NOPV);
+ break;
+ case 1: /* Std GP load. */
+ S_SET_OTHER (sym, STO_ALPHA_STD_GPLOAD);
+ break;
+ case 2: /* Non-std use of PV. */
+ break;
+
+ default:
+ as_bad (_("Invalid argument %d to .prologue."), arg);
+ break;
+ }
+}
+
+static void
+s_alpha_coff_wrapper (which)
+ int which;
+{
+ static void (* const fns[]) PARAMS ((int)) = {
+ ecoff_directive_begin,
+ ecoff_directive_bend,
+ ecoff_directive_def,
+ ecoff_directive_dim,
+ ecoff_directive_endef,
+ ecoff_directive_file,
+ ecoff_directive_scl,
+ ecoff_directive_tag,
+ ecoff_directive_val,
+ ecoff_directive_loc,
+ };
+
+ assert (which >= 0 && which < (int)(sizeof(fns)/sizeof(*fns)));
+
+ if (ECOFF_DEBUGGING)
+ (*fns[which])(0);
+ else
+ {
+ as_bad (_("ECOFF debugging is disabled."));
+ ignore_rest_of_line ();
+ }
+}
+#endif /* OBJ_ELF */
#ifdef OBJ_EVAX
}
-/* .prologue */
-
-static void
-s_alpha_prologue (ignore)
- int ignore;
-{
- demand_empty_rest_of_line ();
-
- return;
-}
-
-
/* Parse .ent directives. */
static void
}
symbol = make_expr_symbol (&symexpr);
- symbol->bsym->flags |= BSF_FUNCTION;
+ symbol_get_bfdsym (symbol)->flags |= BSF_FUNCTION;
alpha_evax_proc.symbol = symbol;
demand_empty_rest_of_line ();
return;
}
- alpha_evax_proc.symbol->sy_obj = (valueT)seginfo->literal_pool_size;
+ *symbol_get_obj (alpha_evax_proc.symbol) =
+ (valueT) seginfo->literal_pool_size;
expression (&exp);
if (exp.X_op != O_symbol)
entry_sym = make_expr_symbol (&exp);
/* Save bfd symbol of proc desc in function symbol. */
- alpha_evax_proc.symbol->bsym->udata.p = (PTR)entry_sym->bsym;
+ symbol_get_bfdsym (alpha_evax_proc.symbol)->udata.p
+ = symbol_get_bfdsym (entry_sym);
SKIP_WHITESPACE ();
if (*input_line_pointer++ != ',')
extern char *demand_copy_string PARAMS ((int *lenP));
sprintf (case_hack, "<CASE:%01d%01d>",
- alpha_flag_hash_long_names, alpha_flag_show_after_trunc);
+ alpha_flag_hash_long_names, alpha_flag_show_after_trunc);
s = symbol_find_or_make (case_hack);
- s->bsym->flags |= BSF_FILE;
+ symbol_get_bfdsym (s)->flags |= BSF_FILE;
get_absolute_expression ();
s = symbol_find_or_make (demand_copy_string (&length));
- s->bsym->flags |= BSF_FILE;
+ symbol_get_bfdsym (s)->flags |= BSF_FILE;
demand_empty_rest_of_line ();
return;
static void
s_alpha_gprel32 (ignore)
- int ignore;
+ int ignore ATTRIBUTE_UNUSED;
{
expressionS e;
char *p;
static void
s_alpha_proc (is_static)
- int is_static;
+ int is_static ATTRIBUTE_UNUSED;
{
char *name;
char c;
input_line_pointer++;
temp = get_absolute_expression ();
}
- /* symbolP->sy_other = (signed char) temp; */
+ /* *symbol_get_obj (symbolP) = (signed char) temp; */
as_warn (_("unhandled: .proc %s,%d"), name, temp);
demand_empty_rest_of_line ();
}
static void
s_alpha_set (x)
- int x;
+ int x ATTRIBUTE_UNUSED;
{
char *name, ch, *s;
int yesno = 1;
static void
s_alpha_base (ignore)
- int ignore;
+ int ignore ATTRIBUTE_UNUSED;
{
#if 0
if (first_32bit_quadrant)
static void
s_alpha_align (ignore)
- int ignore;
+ int ignore ATTRIBUTE_UNUSED;
{
int align;
char fill, *pfill;
static void
s_alpha_arch (ignored)
- int ignored;
+ int ignored ATTRIBUTE_UNUSED;
{
char *name, ch;
const struct cpu_type *p;
{ "link", s_alpha_section, 3},
{ "ctors", s_alpha_section, 4},
{ "dtors", s_alpha_section, 5},
+#endif
+#ifdef OBJ_ELF
+ /* Frame related pseudos. */
+ {"ent", s_alpha_ent, 0},
+ {"end", s_alpha_end, 0},
+ {"mask", s_alpha_mask, 0},
+ {"fmask", s_alpha_mask, 1},
+ {"frame", s_alpha_frame, 0},
+ {"prologue", s_alpha_prologue, 0},
+ /* COFF debugging related pseudos. */
+ {"begin", s_alpha_coff_wrapper, 0},
+ {"bend", s_alpha_coff_wrapper, 1},
+ {"def", s_alpha_coff_wrapper, 2},
+ {"dim", s_alpha_coff_wrapper, 3},
+ {"endef", s_alpha_coff_wrapper, 4},
+ {"file", s_alpha_coff_wrapper, 5},
+ {"scl", s_alpha_coff_wrapper, 6},
+ {"tag", s_alpha_coff_wrapper, 7},
+ {"val", s_alpha_coff_wrapper, 8},
+ {"loc", s_alpha_coff_wrapper, 9},
+#else
+ {"prologue", s_ignore, 0},
#endif
{"gprel32", s_alpha_gprel32, 0},
{"t_floating", s_alpha_float_cons, 'd'},
{"livereg", s_ignore, 0},
{"base", s_alpha_base, 0}, /*??*/
{"option", s_ignore, 0},
- {"prologue", s_ignore, 0},
{"aent", s_ignore, 0},
{"ugen", s_ignore, 0},
{"eflag", s_ignore, 0},
int n;
char *pfill;
symbolS *label;
- int force;
+ int force ATTRIBUTE_UNUSED;
{
if (alpha_current_align >= n)
return;
alpha_current_align = n;
- if (label != NULL)
+ if (label != NULL && S_GET_SEGMENT (label) == now_seg)
{
- assert (S_GET_SEGMENT (label) == now_seg);
- label->sy_frag = frag_now;
+ symbol_set_frag (label, frag_now);
S_SET_VALUE (label, (valueT) frag_now_fix ());
}
- record_alignment(now_seg, n);
+ record_alignment (now_seg, n);
/* ??? if alpha_flag_relax && force && elf, record the requested alignment
in a reloc for the linker to see. */
projects / deliverable / binutils-gdb.git / blobdiff