/* tc-s390.c -- Assemble for the S390
- Copyright 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+ Copyright (C) 2000-2015 Free Software Foundation, Inc.
Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
This file is part of GAS, the GNU Assembler.
GAS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
+ the Free Software Foundation; either version 3, or (at your option)
any later version.
GAS is distributed in the hope that it will be useful,
You should have received a copy of the GNU General Public License
along with GAS; see the file COPYING. If not, write to the Free
- Software Foundation, 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA. */
+ Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
+ 02110-1301, USA. */
-#include <stdio.h>
#include "as.h"
#include "safe-ctype.h"
#include "subsegs.h"
/* Either 32 or 64, selects file format. */
static int s390_arch_size = 0;
+/* If no -march option was given default to the highest available CPU.
+ Since with S/390 a newer CPU always supports everything from its
+ predecessors this will accept every valid asm input. */
+static unsigned int current_cpu = S390_OPCODE_MAXCPU - 1;
static unsigned int current_mode_mask = 0;
-static unsigned int current_cpu = -1U;
+
+/* Set to TRUE if the highgprs flag in the ELF header needs to be set
+ for the output file. */
+static bfd_boolean set_highgprs_p = FALSE;
/* Whether to use user friendly register names. Default is TRUE. */
#ifndef TARGET_REG_NAMES_P
/* The target specific pseudo-ops which we support. */
/* Define the prototypes for the pseudo-ops */
-static void s390_byte PARAMS ((int));
-static void s390_elf_cons PARAMS ((int));
-static void s390_bss PARAMS ((int));
-static void s390_insn PARAMS ((int));
-static void s390_literals PARAMS ((int));
+static void s390_byte (int);
+static void s390_elf_cons (int);
+static void s390_bss (int);
+static void s390_insn (int);
+static void s390_literals (int);
+static void s390_machine (int);
+static void s390_machinemode (int);
const pseudo_typeS md_pseudo_table[] =
{
- { "align", s_align_bytes, 0 },
+ { "align", s_align_bytes, 0 },
/* Pseudo-ops which must be defined. */
- { "bss", s390_bss, 0 },
- { "insn", s390_insn, 0 },
+ { "bss", s390_bss, 0 },
+ { "insn", s390_insn, 0 },
/* Pseudo-ops which must be overridden. */
- { "byte", s390_byte, 0 },
- { "short", s390_elf_cons, 2 },
- { "long", s390_elf_cons, 4 },
- { "quad", s390_elf_cons, 8 },
- { "ltorg", s390_literals, 0 },
- { "string", stringer, 2 },
- { NULL, NULL, 0 }
-};
-
-
-/* Structure to hold information about predefined registers. */
-struct pd_reg
- {
- char *name;
- int value;
- };
-
-/* List of registers that are pre-defined:
-
- Each access register has a predefined name of the form:
- a<reg_num> which has the value <reg_num>.
-
- Each control register has a predefined name of the form:
- c<reg_num> which has the value <reg_num>.
-
- Each general register has a predefined name of the form:
- r<reg_num> which has the value <reg_num>.
-
- Each floating point register a has predefined name of the form:
- f<reg_num> which has the value <reg_num>.
-
- There are individual registers as well:
- sp has the value 15
- lit has the value 12
-
- The table is sorted. Suitable for searching by a binary search. */
-
-static const struct pd_reg pre_defined_registers[] =
-{
- { "a0", 0 }, /* Access registers */
- { "a1", 1 },
- { "a10", 10 },
- { "a11", 11 },
- { "a12", 12 },
- { "a13", 13 },
- { "a14", 14 },
- { "a15", 15 },
- { "a2", 2 },
- { "a3", 3 },
- { "a4", 4 },
- { "a5", 5 },
- { "a6", 6 },
- { "a7", 7 },
- { "a8", 8 },
- { "a9", 9 },
-
- { "c0", 0 }, /* Control registers */
- { "c1", 1 },
- { "c10", 10 },
- { "c11", 11 },
- { "c12", 12 },
- { "c13", 13 },
- { "c14", 14 },
- { "c15", 15 },
- { "c2", 2 },
- { "c3", 3 },
- { "c4", 4 },
- { "c5", 5 },
- { "c6", 6 },
- { "c7", 7 },
- { "c8", 8 },
- { "c9", 9 },
-
- { "f0", 0 }, /* Floating point registers */
- { "f1", 1 },
- { "f10", 10 },
- { "f11", 11 },
- { "f12", 12 },
- { "f13", 13 },
- { "f14", 14 },
- { "f15", 15 },
- { "f2", 2 },
- { "f3", 3 },
- { "f4", 4 },
- { "f5", 5 },
- { "f6", 6 },
- { "f7", 7 },
- { "f8", 8 },
- { "f9", 9 },
-
- { "lit", 13 }, /* Pointer to literal pool */
-
- { "r0", 0 }, /* General purpose registers */
- { "r1", 1 },
- { "r10", 10 },
- { "r11", 11 },
- { "r12", 12 },
- { "r13", 13 },
- { "r14", 14 },
- { "r15", 15 },
- { "r2", 2 },
- { "r3", 3 },
- { "r4", 4 },
- { "r5", 5 },
- { "r6", 6 },
- { "r7", 7 },
- { "r8", 8 },
- { "r9", 9 },
-
- { "sp", 15 }, /* Stack pointer */
-
+ { "byte", s390_byte, 0 },
+ { "short", s390_elf_cons, 2 },
+ { "long", s390_elf_cons, 4 },
+ { "quad", s390_elf_cons, 8 },
+ { "ltorg", s390_literals, 0 },
+ { "string", stringer, 8 + 1 },
+ { "machine", s390_machine, 0 },
+ { "machinemode", s390_machinemode, 0 },
+ { NULL, NULL, 0 }
};
-#define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg))
-
-static int reg_name_search
- PARAMS ((const struct pd_reg *, int, const char *));
-static bfd_boolean register_name PARAMS ((expressionS *));
-static void init_default_arch PARAMS ((void));
-static void s390_insert_operand
- PARAMS ((unsigned char *, const struct s390_operand *, offsetT, char *,
- unsigned int));
-static char *md_gather_operands
- PARAMS ((char *, unsigned char *, const struct s390_opcode *));
-
/* Given NAME, find the register number associated with that name, return
the integer value associated with the given name or -1 on failure. */
static int
-reg_name_search (regs, regcount, name)
- const struct pd_reg *regs;
- int regcount;
- const char *name;
+reg_name_search (const char *name)
{
- int middle, low, high;
- int cmp;
+ int val = -1;
- low = 0;
- high = regcount - 1;
+ if (strcasecmp (name, "lit") == 0)
+ return 13;
- do
+ if (strcasecmp (name, "sp") == 0)
+ return 15;
+
+ if (name[0] != 'a' && name[0] != 'c' && name[0] != 'f'
+ && name[0] != 'r' && name[0] != 'v')
+ return -1;
+
+ if (ISDIGIT (name[1]))
{
- middle = (low + high) / 2;
- cmp = strcasecmp (name, regs[middle].name);
- if (cmp < 0)
- high = middle - 1;
- else if (cmp > 0)
- low = middle + 1;
- else
- return regs[middle].value;
+ val = name[1] - '0';
+ if (ISDIGIT (name[2]))
+ val = val * 10 + name[2] - '0';
}
- while (low <= high);
- return -1;
+ if ((name[0] != 'v' && val > 15) || val > 31)
+ val = -1;
+
+ return val;
}
*/
static bfd_boolean
-register_name (expressionP)
- expressionS *expressionP;
+register_name (expressionS *expressionP)
{
int reg_number;
char *name;
return FALSE;
c = get_symbol_end ();
- reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT, name);
+ reg_number = reg_name_search (name);
/* Put back the delimiting char. */
*input_line_pointer = c;
static struct hash_control *s390_opformat_hash;
/* Opcode hash table. */
-static struct hash_control *s390_opcode_hash;
+static struct hash_control *s390_opcode_hash = NULL;
/* Flags to set in the elf header */
static flagword s390_flags = 0;
/* Initialize the default opcode arch and word size from the default
architecture name if not specified by an option. */
static void
-init_default_arch ()
+init_default_arch (void)
{
if (strcmp (default_arch, "s390") == 0)
{
s390_arch_size = 64;
}
else
- as_fatal ("Invalid default architecture, broken assembler.");
+ as_fatal (_("Invalid default architecture, broken assembler."));
if (current_mode_mask == 0)
{
- if (s390_arch_size == 32)
+ /* Default to z/Architecture mode if the CPU supports it. */
+ if (current_cpu < S390_OPCODE_Z900)
current_mode_mask = 1 << S390_OPCODE_ESA;
else
current_mode_mask = 1 << S390_OPCODE_ZARCH;
}
- if (current_cpu == -1U)
- {
- if (current_mode_mask == (1 << S390_OPCODE_ESA))
- current_cpu = S390_OPCODE_G5;
- else
- current_cpu = S390_OPCODE_Z900;
- }
}
/* Called by TARGET_FORMAT. */
const char *
-s390_target_format ()
+s390_target_format (void)
{
/* We don't get a chance to initialize anything before we're called,
so handle that now. */
return s390_arch_size == 64 ? "elf64-s390" : "elf32-s390";
}
+/* Map a CPU string as given with -march= or .machine to the
+ respective enum s390_opcode_cpu_val value. 0xffffffff is returned
+ in case of an error. */
+
+static unsigned int
+s390_parse_cpu (char *arg)
+{
+ if (strcmp (arg, "g5") == 0)
+ return S390_OPCODE_G5;
+ else if (strcmp (arg, "g6") == 0)
+ return S390_OPCODE_G6;
+ else if (strcmp (arg, "z900") == 0)
+ return S390_OPCODE_Z900;
+ else if (strcmp (arg, "z990") == 0)
+ return S390_OPCODE_Z990;
+ else if (strcmp (arg, "z9-109") == 0)
+ return S390_OPCODE_Z9_109;
+ else if (strcmp (arg, "z9-ec") == 0)
+ return S390_OPCODE_Z9_EC;
+ else if (strcmp (arg, "z10") == 0)
+ return S390_OPCODE_Z10;
+ else if (strcmp (arg, "z196") == 0)
+ return S390_OPCODE_Z196;
+ else if (strcmp (arg, "zEC12") == 0)
+ return S390_OPCODE_ZEC12;
+ else if (strcmp (arg, "z13") == 0)
+ return S390_OPCODE_Z13;
+ else if (strcmp (arg, "all") == 0)
+ return S390_OPCODE_MAXCPU - 1;
+ else
+ return -1;
+}
+
int
-md_parse_option (c, arg)
- int c;
- char *arg;
+md_parse_option (int c, char *arg)
{
switch (c)
{
current_mode_mask = 1 << S390_OPCODE_ESA;
else if (arg != NULL && strcmp (arg, "zarch") == 0)
- current_mode_mask = 1 << S390_OPCODE_ZARCH;
+ {
+ if (s390_arch_size == 32)
+ set_highgprs_p = TRUE;
+ current_mode_mask = 1 << S390_OPCODE_ZARCH;
+ }
else if (arg != NULL && strncmp (arg, "arch=", 5) == 0)
{
- if (strcmp (arg + 5, "g5") == 0)
- current_cpu = S390_OPCODE_G5;
- else if (strcmp (arg + 5, "g6") == 0)
- current_cpu = S390_OPCODE_G6;
- else if (strcmp (arg + 5, "z900") == 0)
- current_cpu = S390_OPCODE_Z900;
- else if (strcmp (arg + 5, "z990") == 0)
- current_cpu = S390_OPCODE_Z990;
- else
+ current_cpu = s390_parse_cpu (arg + 5);
+
+ if (current_cpu == (unsigned int)-1)
{
as_bad (_("invalid switch -m%s"), arg);
return 0;
else if (arg != NULL && strcmp (arg, "esame") == 0)
current_cpu = S390_OPCODE_Z900;
else
- as_bad ("invalid architecture -A%s", arg);
+ as_bad (_("invalid architecture -A%s"), arg);
break;
/* -V: SVR4 argument to print version ID. */
}
void
-md_show_usage (stream)
- FILE *stream;
+md_show_usage (FILE *stream)
{
fprintf (stream, _("\
S390 options:\n\
-Qy, -Qn ignored\n"));
}
+/* Generate the hash table mapping mnemonics to struct s390_opcode.
+ This table is built at startup and whenever the CPU level is
+ changed using .machine. */
+
+static void
+s390_setup_opcodes (void)
+{
+ const struct s390_opcode *op;
+ const struct s390_opcode *op_end;
+ bfd_boolean dup_insn = FALSE;
+ const char *retval;
+
+ if (s390_opcode_hash != NULL)
+ hash_die (s390_opcode_hash);
+
+ /* Insert the opcodes into a hash table. */
+ s390_opcode_hash = hash_new ();
+
+ op_end = s390_opcodes + s390_num_opcodes;
+ for (op = s390_opcodes; op < op_end; op++)
+ {
+ while (op < op_end - 1 && strcmp(op->name, op[1].name) == 0)
+ {
+ if (op->min_cpu <= current_cpu && (op->modes & current_mode_mask))
+ break;
+ op++;
+ }
+
+ if (op->min_cpu <= current_cpu && (op->modes & current_mode_mask))
+ {
+ retval = hash_insert (s390_opcode_hash, op->name, (void *) op);
+ if (retval != (const char *) NULL)
+ {
+ as_bad (_("Internal assembler error for instruction %s"),
+ op->name);
+ dup_insn = TRUE;
+ }
+ }
+
+ while (op < op_end - 1 && strcmp (op->name, op[1].name) == 0)
+ op++;
+ }
+
+ if (dup_insn)
+ abort ();
+}
+
/* This function is called when the assembler starts up. It is called
after the options have been parsed and the output file has been
opened. */
void
-md_begin ()
+md_begin (void)
{
- register const struct s390_opcode *op;
+ const struct s390_opcode *op;
const struct s390_opcode *op_end;
- bfd_boolean dup_insn = FALSE;
const char *retval;
/* Give a warning if the combination -m64-bit and -Aesa is used. */
if (s390_arch_size == 64 && current_cpu < S390_OPCODE_Z900)
- as_warn ("The 64 bit file format is used without esame instructions.");
+ as_warn (_("The 64 bit file format is used without esame instructions."));
s390_cie_data_alignment = -s390_arch_size / 8;
op_end = s390_opformats + s390_num_opformats;
for (op = s390_opformats; op < op_end; op++)
{
- retval = hash_insert (s390_opformat_hash, op->name, (PTR) op);
+ retval = hash_insert (s390_opformat_hash, op->name, (void *) op);
if (retval != (const char *) NULL)
- {
- as_bad (_("Internal assembler error for instruction format %s"),
- op->name);
- dup_insn = TRUE;
- }
+ as_bad (_("Internal assembler error for instruction format %s"),
+ op->name);
}
- /* Insert the opcodes into a hash table. */
- s390_opcode_hash = hash_new ();
-
- op_end = s390_opcodes + s390_num_opcodes;
- for (op = s390_opcodes; op < op_end; op++)
- if (op->min_cpu <= current_cpu)
- {
- retval = hash_insert (s390_opcode_hash, op->name, (PTR) op);
- if (retval != (const char *) NULL)
- {
- as_bad (_("Internal assembler error for instruction %s"),
- op->name);
- dup_insn = TRUE;
- }
- while (op < op_end - 1 && strcmp (op->name, op[1].name) == 0)
- op++;
- }
-
- if (dup_insn)
- abort ();
+ s390_setup_opcodes ();
record_alignment (text_section, 2);
record_alignment (data_section, 2);
record_alignment (bss_section, 2);
-
}
/* Called after all assembly has been done. */
void
-s390_md_end ()
+s390_md_end (void)
{
if (s390_arch_size == 64)
bfd_set_arch_mach (stdoutput, bfd_arch_s390, bfd_mach_s390_64);
/* Insert an operand value into an instruction. */
static void
-s390_insert_operand (insn, operand, val, file, line)
- unsigned char *insn;
- const struct s390_operand *operand;
- offsetT val;
- char *file;
- unsigned int line;
+s390_insert_operand (unsigned char *insn,
+ const struct s390_operand *operand,
+ offsetT val,
+ char *file,
+ unsigned int line)
{
addressT uval;
int offset;
if (val < min || val > max)
{
const char *err =
- "operand out of range (%s not between %ld and %ld)";
+ _("operand out of range (%s not between %ld and %ld)");
char buf[100];
if (operand->flags & S390_OPERAND_PCREL)
max = (((addressT) 1 << (operand->bits - 1)) << 1) - 1;
min = (offsetT) 0;
uval = (addressT) val;
+
+ /* Vector register operands have an additional bit in the RXB
+ field. */
+ if (operand->flags & S390_OPERAND_VR)
+ max = (max << 1) | 1;
+
/* Length x in an instructions has real length x+1. */
if (operand->flags & S390_OPERAND_LENGTH)
uval--;
}
}
+ if (operand->flags & S390_OPERAND_VR)
+ {
+ /* Insert the extra bit into the RXB field. */
+ switch (operand->shift)
+ {
+ case 8:
+ insn[4] |= (uval & 0x10) >> 1;
+ break;
+ case 12:
+ insn[4] |= (uval & 0x10) >> 2;
+ break;
+ case 16:
+ insn[4] |= (uval & 0x10) >> 3;
+ break;
+ case 32:
+ insn[4] |= (uval & 0x10) >> 4;
+ break;
+ }
+ uval &= 0xf;
+ }
+
+ if (operand->flags & S390_OPERAND_OR1)
+ uval |= 1;
+ if (operand->flags & S390_OPERAND_OR2)
+ uval |= 2;
+ if (operand->flags & S390_OPERAND_OR8)
+ uval |= 8;
+
+ /* Duplicate the operand at bit pos 12 to 16. */
+ if (operand->flags & S390_OPERAND_CP16)
+ {
+ /* Copy VR operand at bit pos 12 to bit pos 16. */
+ insn[2] |= uval << 4;
+ /* Copy the flag in the RXB field. */
+ insn[4] |= (insn[4] & 4) >> 1;
+ }
+
/* Insert fragments of the operand byte for byte. */
offset = operand->shift + operand->bits;
uval <<= (-offset) & 7;
bfd_reloc_code_real_type reloc;
};
-static bfd_reloc_code_real_type s390_tls_suffix
- PARAMS ((char **, expressionS *));
-
/* Parse tls marker and return the desired relocation. */
static bfd_reloc_code_real_type
-s390_tls_suffix (str_p, exp_p)
- char **str_p;
- expressionS *exp_p;
+s390_tls_suffix (char **str_p, expressionS *exp_p)
{
static struct map_tls mapping[] =
{
elf_suffix_type suffix;
};
-static elf_suffix_type s390_elf_suffix PARAMS ((char **, expressionS *));
-static int s390_exp_compare PARAMS ((expressionS *exp1, expressionS *exp2));
-static elf_suffix_type s390_lit_suffix
- PARAMS ((char **, expressionS *, elf_suffix_type));
-
/* Parse @got/@plt/@gotoff. and return the desired relocation. */
static elf_suffix_type
-s390_elf_suffix (str_p, exp_p)
- char **str_p;
- expressionS *exp_p;
+s390_elf_suffix (char **str_p, expressionS *exp_p)
{
static struct map_bfd mapping[] =
{
static int lpe_count = 0;
static int
-s390_exp_compare (exp1, exp2)
- expressionS *exp1;
- expressionS *exp2;
+s390_exp_compare (expressionS *exp1, expressionS *exp2)
{
if (exp1->X_op != exp2->X_op)
return 0;
/* Test for @lit and if its present make an entry in the literal pool and
modify the current expression to be an offset into the literal pool. */
static elf_suffix_type
-s390_lit_suffix (str_p, exp_p, suffix)
- char **str_p;
- expressionS *exp_p;
- elf_suffix_type suffix;
+s390_lit_suffix (char **str_p, expressionS *exp_p, elf_suffix_type suffix)
{
bfd_reloc_code_real_type reloc;
char tmp_name[64];
/* Like normal .long/.short/.word, except support @got, etc.
clobbers input_line_pointer, checks end-of-line. */
static void
-s390_elf_cons (nbytes)
- register int nbytes; /* 1=.byte, 2=.word, 4=.long */
+s390_elf_cons (int nbytes /* 1=.byte, 2=.word, 4=.long */)
{
expressionS exp;
elf_suffix_type suffix;
/* This routine is called for each instruction to be assembled. */
static char *
-md_gather_operands (str, insn, opcode)
- char *str;
- unsigned char *insn;
- const struct s390_opcode *opcode;
+md_gather_operands (char *str,
+ unsigned char *insn,
+ const struct s390_opcode *opcode)
{
struct s390_fixup fixups[MAX_INSN_FIXUPS];
const struct s390_operand *operand;
elf_suffix_type suffix;
bfd_reloc_code_real_type reloc;
int skip_optional;
- int parentheses;
char *f;
int fc, i;
while (ISSPACE (*str))
str++;
- parentheses = 0;
skip_optional = 0;
/* Gather the operands. */
operand = s390_operands + *opindex_ptr;
+ if ((opcode->flags & S390_INSTR_FLAG_OPTPARM) && *str == '\0')
+ {
+ /* Optional parameters might need to be ORed with a
+ value so calling s390_insert_operand is needed. */
+ s390_insert_operand (insn, operand, 0, NULL, 0);
+ break;
+ }
+
if (skip_optional && (operand->flags & S390_OPERAND_INDEX))
{
/* We do an early skip. For D(X,B) constructions the index
if (ex.X_op == O_illegal)
as_bad (_("illegal operand"));
else if (ex.X_op == O_absent)
- as_bad (_("missing operand"));
+ {
+ /* No operands, check if all operands can be skipped. */
+ while (*opindex_ptr != 0 && operand->flags & S390_OPERAND_OPTIONAL)
+ {
+ if (operand->flags & S390_OPERAND_DISP)
+ {
+ /* An optional displacement makes the whole D(X,B)
+ D(L,B) or D(B) block optional. */
+ do {
+ operand = s390_operands + *(++opindex_ptr);
+ } while (!(operand->flags & S390_OPERAND_BASE));
+ }
+ operand = s390_operands + *(++opindex_ptr);
+ }
+ if (opindex_ptr[0] == '\0')
+ break;
+ as_bad (_("missing operand"));
+ }
else if (ex.X_op == O_register || ex.X_op == O_constant)
{
s390_lit_suffix (&str, &ex, ELF_SUFFIX_NONE);
if ((operand->flags & S390_OPERAND_INDEX)
&& ex.X_add_number == 0
&& warn_areg_zero)
- as_warn ("index register specified but zero");
+ as_warn (_("index register specified but zero"));
if ((operand->flags & S390_OPERAND_BASE)
&& ex.X_add_number == 0
&& warn_areg_zero)
- as_warn ("base register specified but zero");
+ as_warn (_("base register specified but zero"));
+ if ((operand->flags & S390_OPERAND_GPR)
+ && (operand->flags & S390_OPERAND_REG_PAIR)
+ && (ex.X_add_number & 1))
+ as_fatal (_("odd numbered general purpose register specified as "
+ "register pair"));
+ if ((operand->flags & S390_OPERAND_FPR)
+ && (operand->flags & S390_OPERAND_REG_PAIR)
+ && ex.X_add_number != 0 && ex.X_add_number != 1
+ && ex.X_add_number != 4 && ex.X_add_number != 5
+ && ex.X_add_number != 8 && ex.X_add_number != 9
+ && ex.X_add_number != 12 && ex.X_add_number != 13)
+ as_fatal (_("invalid floating point register pair. Valid fp "
+ "register pair operands are 0, 1, 4, 5, 8, 9, "
+ "12 or 13."));
s390_insert_operand (insn, operand, ex.X_add_number, NULL, 0);
}
}
else if (suffix == ELF_SUFFIX_PLT)
{
if ((operand->flags & S390_OPERAND_PCREL)
- && (operand->bits == 16))
+ && (operand->bits == 12))
+ reloc = BFD_RELOC_390_PLT12DBL;
+ else if ((operand->flags & S390_OPERAND_PCREL)
+ && (operand->bits == 16))
reloc = BFD_RELOC_390_PLT16DBL;
+ else if ((operand->flags & S390_OPERAND_PCREL)
+ && (operand->bits == 24))
+ reloc = BFD_RELOC_390_PLT24DBL;
else if ((operand->flags & S390_OPERAND_PCREL)
&& (operand->bits == 32))
reloc = BFD_RELOC_390_PLT32DBL;
/* If there is a next operand it must be separated by a comma. */
if (opindex_ptr[1] != '\0')
{
- if (*str++ != ',')
- as_bad (_("syntax error; expected ,"));
+ if (*str != ',')
+ {
+ while (opindex_ptr[1] != '\0')
+ {
+ operand = s390_operands + *(++opindex_ptr);
+ if (operand->flags & S390_OPERAND_OPTIONAL)
+ continue;
+ as_bad (_("syntax error; expected ,"));
+ break;
+ }
+ }
+ else
+ str++;
}
}
else
/* If there is a next operand it must be separated by a comma. */
if (opindex_ptr[1] != '\0')
{
- if (*str++ != ',')
- as_bad (_("syntax error; expected ,"));
+ if (*str != ',')
+ {
+ while (opindex_ptr[1] != '\0')
+ {
+ operand = s390_operands + *(++opindex_ptr);
+ if (operand->flags & S390_OPERAND_OPTIONAL)
+ continue;
+ as_bad (_("syntax error; expected ,"));
+ break;
+ }
+ }
+ else
+ str++;
}
}
else
as_bad (_("syntax error; ')' not allowed here"));
str++;
}
+
+ if ((opcode->flags & S390_INSTR_FLAG_OPTPARM) && *str == '\0')
+ continue;
+
/* If there is a next operand it must be separated by a comma. */
if (opindex_ptr[1] != '\0')
{
- if (*str++ != ',')
- as_bad (_("syntax error; expected ,"));
+ if (*str != ',')
+ {
+ while (opindex_ptr[1] != '\0')
+ {
+ operand = s390_operands + *(++opindex_ptr);
+ if (operand->flags & S390_OPERAND_OPTIONAL)
+ continue;
+ as_bad (_("syntax error; expected ,"));
+ break;
+ }
+ }
+ else
+ str++;
}
}
}
BFD_RELOC_UNUSED plus the operand index. This lets us easily
handle fixups for any operand type, although that is admittedly
not a very exciting feature. We pick a BFD reloc type in
- md_apply_fix3. */
+ md_apply_fix. */
for (i = 0; i < fc; i++)
{
if (!reloc_howto)
abort ();
- size = bfd_get_reloc_size (reloc_howto);
+ size = ((reloc_howto->bitsize - 1) / 8) + 1;
if (size < 1 || size > 4)
abort ();
/* This routine is called for each instruction to be assembled. */
void
-md_assemble (str)
- char *str;
+md_assemble (char *str)
{
const struct s390_opcode *opcode;
unsigned char insn[6];
}
else if (!(opcode->modes & current_mode_mask))
{
- as_bad ("Opcode %s not available in this mode", str);
+ as_bad (_("Opcode %s not available in this mode"), str);
return;
}
memcpy (insn, opcode->opcode, sizeof (insn));
#endif
void
-s390_bss (ignore)
- int ignore ATTRIBUTE_UNUSED;
+s390_bss (int ignore ATTRIBUTE_UNUSED)
{
/* We don't support putting frags in the BSS segment, we fake it
by marking in_bss, then looking at s_skip for clues. */
/* Pseudo-op handling. */
void
-s390_insn (ignore)
- int ignore ATTRIBUTE_UNUSED;
+s390_insn (int ignore ATTRIBUTE_UNUSED)
{
expressionS exp;
const struct s390_opcode *opformat;
if (exp.X_op == O_constant)
{
if ( ( opformat->oplen == 6
- && (addressT) exp.X_add_number >= 0
&& (addressT) exp.X_add_number < (1ULL << 48))
|| ( opformat->oplen == 4
- && (addressT) exp.X_add_number >= 0
&& (addressT) exp.X_add_number < (1ULL << 32))
|| ( opformat->oplen == 2
- && (addressT) exp.X_add_number >= 0
&& (addressT) exp.X_add_number < (1ULL << 16)))
- md_number_to_chars (insn, exp.X_add_number, opformat->oplen);
+ md_number_to_chars ((char *) insn, exp.X_add_number, opformat->oplen);
else
as_bad (_("Invalid .insn format\n"));
}
&& opformat->oplen == 6
&& generic_bignum[3] == 0)
{
- md_number_to_chars (insn, generic_bignum[2], 2);
- md_number_to_chars (&insn[2], generic_bignum[1], 2);
- md_number_to_chars (&insn[4], generic_bignum[0], 2);
+ md_number_to_chars ((char *) insn, generic_bignum[2], 2);
+ md_number_to_chars ((char *) &insn[2], generic_bignum[1], 2);
+ md_number_to_chars ((char *) &insn[4], generic_bignum[0], 2);
}
else
as_bad (_("Invalid .insn format\n"));
pseudo-op, but it can also take a single ASCII string. */
static void
-s390_byte (ignore)
- int ignore ATTRIBUTE_UNUSED;
+s390_byte (int ignore ATTRIBUTE_UNUSED)
{
if (*input_line_pointer != '\"')
{
@lit suffix. */
static void
-s390_literals (ignore)
- int ignore ATTRIBUTE_UNUSED;
+s390_literals (int ignore ATTRIBUTE_UNUSED)
{
struct s390_lpe *lpe;
lpe_count = 0;
}
-/* Turn a string in input_line_pointer into a floating point constant
- of type type, and store the appropriate bytes in *litp. The number
- of LITTLENUMS emitted is stored in *sizep . An error message is
- returned, or NULL on OK. */
+/* The .machine pseudo op allows to switch to a different CPU level in
+ the asm listing. The current CPU setting can be stored on a stack
+ with .machine push and restored with .machine pop. */
-char *
-md_atof (type, litp, sizep)
- int type;
- char *litp;
- int *sizep;
+static void
+s390_machine (int ignore ATTRIBUTE_UNUSED)
{
- int prec;
- LITTLENUM_TYPE words[4];
- char *t;
- int i;
+ char *cpu_string;
+#define MAX_HISTORY 100
+ static unsigned int *cpu_history;
+ static int curr_hist;
+
+ SKIP_WHITESPACE ();
- switch (type)
+ if (*input_line_pointer == '"')
{
- case 'f':
- prec = 2;
- break;
+ int len;
+ cpu_string = demand_copy_C_string (&len);
+ }
+ else
+ {
+ char c;
+ cpu_string = input_line_pointer;
+ c = get_symbol_end ();
+ cpu_string = xstrdup (cpu_string);
+ *input_line_pointer = c;
+ }
- case 'd':
- prec = 4;
- break;
+ if (cpu_string != NULL)
+ {
+ unsigned int old_cpu = current_cpu;
+ unsigned int new_cpu;
- default:
- *sizep = 0;
- return "bad call to md_atof";
+ if (strcmp (cpu_string, "push") == 0)
+ {
+ if (cpu_history == NULL)
+ cpu_history = xmalloc (MAX_HISTORY * sizeof (*cpu_history));
+
+ if (curr_hist >= MAX_HISTORY)
+ as_bad (_(".machine stack overflow"));
+ else
+ cpu_history[curr_hist++] = current_cpu;
+ }
+ else if (strcmp (cpu_string, "pop") == 0)
+ {
+ if (curr_hist <= 0)
+ as_bad (_(".machine stack underflow"));
+ else
+ current_cpu = cpu_history[--curr_hist];
+ }
+ else if ((new_cpu = s390_parse_cpu (cpu_string)) != (unsigned int)-1)
+ current_cpu = new_cpu;
+ else
+ as_bad (_("invalid machine `%s'"), cpu_string);
+
+ if (current_cpu != old_cpu)
+ s390_setup_opcodes ();
}
- t = atof_ieee (input_line_pointer, type, words);
- if (t)
- input_line_pointer = t;
+ demand_empty_rest_of_line ();
+}
+
+/* The .machinemode pseudo op allows to switch to a different
+ architecture mode in the asm listing. The current architecture
+ mode setting can be stored on a stack with .machinemode push and
+ restored with .machinemode pop. */
+
+static void
+s390_machinemode (int ignore ATTRIBUTE_UNUSED)
+{
+ char *mode_string;
+#define MAX_HISTORY 100
+ static unsigned int *mode_history;
+ static int curr_hist;
+
+ SKIP_WHITESPACE ();
- *sizep = prec * 2;
+ if (*input_line_pointer == '"')
+ {
+ int len;
+ mode_string = demand_copy_C_string (&len);
+ }
+ else
+ {
+ char c;
+ mode_string = input_line_pointer;
+ c = get_symbol_end ();
+ mode_string = xstrdup (mode_string);
+ *input_line_pointer = c;
+ }
- for (i = 0; i < prec; i++)
+ if (mode_string != NULL)
{
- md_number_to_chars (litp, (valueT) words[i], 2);
- litp += 2;
+ unsigned int old_mode_mask = current_mode_mask;
+ char *p;
+
+ for (p = mode_string; *p != 0; p++)
+ *p = TOLOWER (*p);
+
+ if (strcmp (mode_string, "push") == 0)
+ {
+ if (mode_history == NULL)
+ mode_history = xmalloc (MAX_HISTORY * sizeof (*mode_history));
+
+ if (curr_hist >= MAX_HISTORY)
+ as_bad (_(".machinemode stack overflow"));
+ else
+ mode_history[curr_hist++] = current_mode_mask;
+ }
+ else if (strcmp (mode_string, "pop") == 0)
+ {
+ if (curr_hist <= 0)
+ as_bad (_(".machinemode stack underflow"));
+ else
+ current_mode_mask = mode_history[--curr_hist];
+ }
+ else
+ {
+ if (strcmp (mode_string, "esa") == 0)
+ current_mode_mask = 1 << S390_OPCODE_ESA;
+ else if (strcmp (mode_string, "zarch") == 0)
+ {
+ if (s390_arch_size == 32)
+ set_highgprs_p = TRUE;
+ current_mode_mask = 1 << S390_OPCODE_ZARCH;
+ }
+ else if (strcmp (mode_string, "zarch_nohighgprs") == 0)
+ current_mode_mask = 1 << S390_OPCODE_ZARCH;
+ else
+ as_bad (_("invalid machine `%s'"), mode_string);
+ }
+
+ if (current_mode_mask != old_mode_mask)
+ s390_setup_opcodes ();
}
- return NULL;
+ demand_empty_rest_of_line ();
+}
+
+char *
+md_atof (int type, char *litp, int *sizep)
+{
+ return ieee_md_atof (type, litp, sizep, TRUE);
}
/* Align a section (I don't know why this is machine dependent). */
valueT
-md_section_align (seg, addr)
- asection *seg;
- valueT addr;
+md_section_align (asection *seg, valueT addr)
{
int align = bfd_get_section_alignment (stdoutput, seg);
/* We don't have any form of relaxing. */
int
-md_estimate_size_before_relax (fragp, seg)
- fragS *fragp ATTRIBUTE_UNUSED;
- asection *seg ATTRIBUTE_UNUSED;
+md_estimate_size_before_relax (fragS *fragp ATTRIBUTE_UNUSED,
+ asection *seg ATTRIBUTE_UNUSED)
{
abort ();
return 0;
/* Convert a machine dependent frag. We never generate these. */
void
-md_convert_frag (abfd, sec, fragp)
- bfd *abfd ATTRIBUTE_UNUSED;
- asection *sec ATTRIBUTE_UNUSED;
- fragS *fragp ATTRIBUTE_UNUSED;
+md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED,
+ asection *sec ATTRIBUTE_UNUSED,
+ fragS *fragp ATTRIBUTE_UNUSED)
{
abort ();
}
symbolS *
-md_undefined_symbol (name)
- char *name;
+md_undefined_symbol (char *name)
{
if (*name == '_' && *(name + 1) == 'G'
&& strcmp (name, "_GLOBAL_OFFSET_TABLE_") == 0)
given a PC relative reloc. */
long
-md_pcrel_from_section (fixp, sec)
- fixS *fixp;
- segT sec ATTRIBUTE_UNUSED;
+md_pcrel_from_section (fixS *fixp, segT sec ATTRIBUTE_UNUSED)
{
return fixp->fx_frag->fr_address + fixp->fx_where;
}
to make sure that the dynamic relocations are done correctly, so in
some cases we force the original symbol to be used. */
int
-tc_s390_fix_adjustable (fixP)
- fixS *fixP;
+tc_s390_fix_adjustable (fixS *fixP)
{
/* Don't adjust references to merge sections. */
if ((S_GET_SEGMENT (fixP->fx_addsy)->flags & SEC_MERGE) != 0)
|| fixP->fx_r_type == BFD_RELOC_390_PLTOFF16
|| fixP->fx_r_type == BFD_RELOC_390_PLTOFF32
|| fixP->fx_r_type == BFD_RELOC_390_PLTOFF64
+ || fixP->fx_r_type == BFD_RELOC_390_PLT12DBL
|| fixP->fx_r_type == BFD_RELOC_390_PLT16DBL
+ || fixP->fx_r_type == BFD_RELOC_390_PLT24DBL
|| fixP->fx_r_type == BFD_RELOC_390_PLT32
|| fixP->fx_r_type == BFD_RELOC_390_PLT32DBL
|| fixP->fx_r_type == BFD_RELOC_390_PLT64
/* Return true if we must always emit a reloc for a type and false if
there is some hope of resolving it at assembly time. */
int
-tc_s390_force_relocation (fixp)
- struct fix *fixp;
+tc_s390_force_relocation (struct fix *fixp)
{
/* Ensure we emit a relocation for every reference to the global
offset table or to the procedure link table. */
case BFD_RELOC_390_GOT64:
case BFD_RELOC_390_GOTENT:
case BFD_RELOC_390_PLT32:
+ case BFD_RELOC_390_PLT12DBL:
case BFD_RELOC_390_PLT16DBL:
+ case BFD_RELOC_390_PLT24DBL:
case BFD_RELOC_390_PLT32DBL:
case BFD_RELOC_390_PLT64:
case BFD_RELOC_390_GOTPLT12:
case BFD_RELOC_390_GOTPLTENT:
return 1;
default:
- break;;
+ break;
}
return generic_force_reloc (fixp);
fixup. */
void
-md_apply_fix3 (fixP, valP, seg)
- fixS *fixP;
- valueT *valP;
- segT seg ATTRIBUTE_UNUSED;
+md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
{
char *where;
valueT value = *valP;
if (fixP->fx_subsy != NULL)
as_bad_where (fixP->fx_file, fixP->fx_line,
- "cannot emit relocation %s against subsy symbol %s",
+ _("cannot emit relocation %s against subsy symbol %s"),
bfd_get_reloc_code_name (fixP->fx_r_type),
S_GET_NAME (fixP->fx_subsy));
if (fixP->fx_done)
{
/* Insert the fully resolved operand value. */
- s390_insert_operand (where, operand, (offsetT) value,
- fixP->fx_file, fixP->fx_line);
+ s390_insert_operand ((unsigned char *) where, operand,
+ (offsetT) value, fixP->fx_file, fixP->fx_line);
return;
}
fixP->fx_where += 1;
fixP->fx_r_type = BFD_RELOC_8;
}
+ else if (operand->bits == 12 && operand->shift == 12
+ && (operand->flags & S390_OPERAND_PCREL))
+ {
+ fixP->fx_size = 2;
+ fixP->fx_where += 1;
+ fixP->fx_offset += 1;
+ fixP->fx_r_type = BFD_RELOC_390_PC12DBL;
+ }
else if (operand->bits == 16 && operand->shift == 16)
{
fixP->fx_size = 2;
else
fixP->fx_r_type = BFD_RELOC_16;
}
+ else if (operand->bits == 24 && operand->shift == 24
+ && (operand->flags & S390_OPERAND_PCREL))
+ {
+ fixP->fx_size = 3;
+ fixP->fx_where += 3;
+ fixP->fx_offset += 3;
+ fixP->fx_r_type = BFD_RELOC_390_PC24DBL;
+ }
else if (operand->bits == 32 && operand->shift == 16
&& (operand->flags & S390_OPERAND_PCREL))
{
case BFD_RELOC_390_12:
case BFD_RELOC_390_GOT12:
case BFD_RELOC_390_GOTPLT12:
+ case BFD_RELOC_390_PC12DBL:
+ case BFD_RELOC_390_PLT12DBL:
+ if (fixP->fx_pcrel)
+ value++;
+
if (fixP->fx_done)
{
unsigned short mop;
+ if (fixP->fx_pcrel)
+ value >>= 1;
+
mop = bfd_getb16 ((unsigned char *) where);
mop |= (unsigned short) (value & 0xfff);
bfd_putb16 ((bfd_vma) mop, (unsigned char *) where);
case BFD_RELOC_16_GOTOFF:
if (fixP->fx_pcrel)
as_bad_where (fixP->fx_file, fixP->fx_line,
- "cannot emit PC relative %s relocation%s%s",
+ _("cannot emit PC relative %s relocation%s%s"),
bfd_get_reloc_code_name (fixP->fx_r_type),
fixP->fx_addsy != NULL ? " against " : "",
(fixP->fx_addsy != NULL
md_number_to_chars (where, (offsetT) value >> 1, 2);
break;
+ case BFD_RELOC_390_PC24DBL:
+ case BFD_RELOC_390_PLT24DBL:
+ value += 3;
+ if (fixP->fx_done)
+ {
+ unsigned int mop;
+ value >>= 1;
+
+ mop = bfd_getb32 ((unsigned char *) where - 1);
+ mop |= (unsigned int) (value & 0xffffff);
+ bfd_putb32 ((bfd_vma) mop, (unsigned char *) where - 1);
+ }
+ break;
+
case BFD_RELOC_32:
if (fixP->fx_pcrel)
fixP->fx_r_type = BFD_RELOC_32_PCREL;
const char *reloc_name = bfd_get_reloc_code_name (fixP->fx_r_type);
if (reloc_name != NULL)
- fprintf (stderr, "Gas failure, reloc type %s\n", reloc_name);
+ as_fatal (_("Gas failure, reloc type %s\n"), reloc_name);
else
- fprintf (stderr, "Gas failure, reloc type #%i\n", fixP->fx_r_type);
- fflush (stderr);
- abort ();
+ as_fatal (_("Gas failure, reloc type #%i\n"), fixP->fx_r_type);
}
}
/* Generate a reloc for a fixup. */
arelent *
-tc_gen_reloc (seg, fixp)
- asection *seg ATTRIBUTE_UNUSED;
- fixS *fixp;
+tc_gen_reloc (asection *seg ATTRIBUTE_UNUSED, fixS *fixp)
{
bfd_reloc_code_real_type code;
arelent *reloc;
bfd_get_reloc_code_name (code));
/* Set howto to a garbage value so that we can keep going. */
reloc->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_32);
- assert (reloc->howto != NULL);
+ gas_assert (reloc->howto != NULL);
}
reloc->addend = fixp->fx_offset;
}
void
-s390_cfi_frame_initial_instructions ()
+s390_cfi_frame_initial_instructions (void)
{
cfi_add_CFA_def_cfa (15, s390_arch_size == 64 ? 160 : 96);
}
int
-tc_s390_regname_to_dw2regnum (const char *regname)
+tc_s390_regname_to_dw2regnum (char *regname)
{
int regnum = -1;
if (regname[0] != 'c' && regname[0] != 'a')
{
- regnum = reg_name_search (pre_defined_registers, REG_NAME_CNT, regname);
+ regnum = reg_name_search (regname);
if (regname[0] == 'f' && regnum != -1)
regnum += 16;
}
regnum = 33;
return regnum;
}
+
+void
+s390_elf_final_processing (void)
+{
+ if (set_highgprs_p)
+ elf_elfheader (stdoutput)->e_flags |= EF_S390_HIGH_GPRS;
+}