aboutsummaryrefslogtreecommitdiff
path: root/gas/config
diff options
context:
space:
mode:
authorAlan Modra <amodra@gmail.com>2018-04-16 15:21:56 +0930
committerAlan Modra <amodra@gmail.com>2018-04-16 15:21:56 +0930
commit6793974daae8ff3f8ad4e856a9f0e3bbe4fdf9a3 (patch)
tree2e315af61323e8b9feae8a00a81301e11f2071b2 /gas/config
parente82aa7944d2b00c54e9d3c1a47c5ed4a0e39393a (diff)
downloadgdb-6793974daae8ff3f8ad4e856a9f0e3bbe4fdf9a3.zip
gdb-6793974daae8ff3f8ad4e856a9f0e3bbe4fdf9a3.tar.gz
gdb-6793974daae8ff3f8ad4e856a9f0e3bbe4fdf9a3.tar.bz2
Remove i370 support
include/ * elf/i370.h: Delete. * opcode/i370.h: Delete. bfd/ * Makefile.am: Remove i370 support. * archures.c: Likewise. * config.bfd: Likewise. * configure.ac: Likewise. * targets.c: Likewise. * cpu-i370.c: Delete. * elf32-i370.c: Delete. * Makefile.in: Regenerate. * bfd-in2.h: Regenerate. * configure: Regenerate. * po/SRC-POTFILES.in: Regenerate. opcodes/ * Makefile.am: Remove i370 support. * configure.ac: Likewise. * disassemble.c: Likewise. * disassemble.h: Likewise. * i370-dis.c: Delete. * i370-opc.c: Delete. * Makefile.in: Regenerate. * configure: Regenerate. * po/POTFILES.in: Regenerate. binutils/ * readelf.c: Remove i370 support. * testsuite/binutils-all/objdump.exp: Likewise. gas/ * Makefile.am: Remove i370 support. * app.c: Likewise. * config/obj-elf.c: Likewise. * configure.tgt: Likewise. * doc/Makefile.am: Likewise. * doc/as.texinfo: Likewise. * testsuite/gas/all/gas.exp: Likewise. * testsuite/gas/elf/warn-2.s: Likewise. * testsuite/gas/lns/lns.exp: Likewise. * config/tc-i370.c: Delete. * config/tc-i370.h: Delete. * doc/c-i370.texi: Delete. * Makefile.in: Regenerate. * doc/Makefile.in: Regenerate. * po/POTFILES.in: Regenerate. ld/ * Makefile.am: Remove i370 support. * configure.tgt: Likewise. * testsuite/ld-elf/compressed1d.d: Likewise. * testsuite/ld-elf/group8a.d: Likewise. * testsuite/ld-elf/group8b.d: Likewise. * testsuite/ld-elf/group9a.d: Likewise. * testsuite/ld-elf/group9b.d: Likewise. * testsuite/ld-elf/merge.d: Likewise. * testsuite/ld-elf/pr12851.d: Likewise. * testsuite/ld-elf/pr12975.d: Likewise. * testsuite/ld-elf/pr13177.d: Likewise. * testsuite/ld-elf/pr13195.d: Likewise. * testsuite/ld-elf/pr17615.d: Likewise. * testsuite/ld-elf/pr21562a.d: Likewise. * testsuite/ld-elf/pr21562b.d: Likewise. * testsuite/ld-elf/pr21562c.d: Likewise. * testsuite/ld-elf/pr21562d.d: Likewise. * testsuite/ld-elf/pr21562i.d: Likewise. * testsuite/ld-elf/pr21562j.d: Likewise. * testsuite/ld-elf/pr21562k.d: Likewise. * testsuite/ld-elf/pr21562l.d: Likewise. * testsuite/ld-elf/pr21562m.d: Likewise. * testsuite/ld-elf/pr21562n.d: Likewise. * testsuite/ld-elf/pr22677.d: Likewise. * testsuite/lib/ld-lib.exp: Likewise. * emulparams/elf32i370.sh: Delete. * scripttempl/elfi370.sc: Delete. * Makefile.in: Regenerate. * po/BLD-POTFILES.in: Regenerate.
Diffstat (limited to 'gas/config')
-rw-r--r--gas/config/obj-elf.c6
-rw-r--r--gas/config/tc-i370.c2669
-rw-r--r--gas/config/tc-i370.h63
3 files changed, 0 insertions, 2738 deletions
diff --git a/gas/config/obj-elf.c b/gas/config/obj-elf.c
index cac3c39a..38b79f8 100644
--- a/gas/config/obj-elf.c
+++ b/gas/config/obj-elf.c
@@ -48,10 +48,6 @@
#include "elf/ppc.h"
#endif
-#ifdef TC_I370
-#include "elf/i370.h"
-#endif
-
#ifdef TC_I386
#include "elf/x86-64.h"
#endif
@@ -1019,7 +1015,6 @@ obj_elf_section (int push)
subsegT new_subsection = -1;
unsigned int info = 0;
-#ifndef TC_I370
if (flag_mri)
{
char mri_type;
@@ -1039,7 +1034,6 @@ obj_elf_section (int push)
return;
}
-#endif /* ! defined (TC_I370) */
name = obj_elf_section_name ();
if (name == NULL)
diff --git a/gas/config/tc-i370.c b/gas/config/tc-i370.c
deleted file mode 100644
index bd24390..0000000
--- a/gas/config/tc-i370.c
+++ /dev/null
@@ -1,2669 +0,0 @@
-/* tc-i370.c -- Assembler for the IBM 360/370/390 instruction set.
- Loosely based on the ppc files by Linas Vepstas <linas@linas.org> 1998, 99
- Copyright (C) 1994-2018 Free Software Foundation, Inc.
- Written by Ian Lance Taylor, Cygnus Support.
-
- 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 3, or (at your option)
- any later version.
-
- GAS is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- 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, 51 Franklin Street - Fifth Floor, Boston, MA
- 02110-1301, USA. */
-
-/* This assembler implements a very hacked version of an elf-like thing
- that gcc emits (when gcc is suitably hacked). To make it behave more
- HLASM-like, try turning on the -M or --mri flag (as there are various
- similarities between HLASM and the MRI assemblers, such as section
- names, lack of leading . in pseudo-ops, DC and DS, etc. */
-
-#include "as.h"
-#include "safe-ctype.h"
-#include "subsegs.h"
-#include "struc-symbol.h"
-
-#include "opcode/i370.h"
-
-#ifdef OBJ_ELF
-#include "elf/i370.h"
-#endif
-
-/* This is the assembler for the System/390 Architecture. */
-
-/* Tell the main code what the endianness is. */
-extern int target_big_endian;
-
-
-/* Generic assembler global variables which must be defined by all
- targets. */
-
-#ifdef OBJ_ELF
-/* This string holds the chars that always start a comment. If the
- pre-processor is disabled, these aren't very useful. The macro
- tc_comment_chars points to this. We use this, rather than the
- usual comment_chars, so that we can switch for Solaris conventions. */
-static const char i370_eabi_comment_chars[] = "#";
-
-const char *i370_comment_chars = i370_eabi_comment_chars;
-#else
-const char comment_chars[] = "#";
-#endif
-
-/* Characters which start a comment at the beginning of a line. */
-const char line_comment_chars[] = "#*";
-
-/* Characters which may be used to separate multiple commands on a
- single line. */
-const char line_separator_chars[] = ";";
-
-/* Characters which are used to indicate an exponent in a floating
- point number. */
-const char EXP_CHARS[] = "eE";
-
-/* Characters which mean that a number is a floating point constant,
- as in 0d1.0. */
-const char FLT_CHARS[] = "dD";
-
-void
-md_show_usage (FILE *stream)
-{
- fprintf (stream, "\
-S/370 options: (these have not yet been tested and may not work) \n\
--u ignored\n\
--mregnames Allow symbolic names for registers\n\
--mno-regnames Do not allow symbolic names for registers\n");
-#ifdef OBJ_ELF
- fprintf (stream, "\
--mrelocatable support for GCC's -mrelocatble option\n\
--mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
--V print assembler version number\n");
-#endif
-}
-
-/* Whether to use user friendly register names. */
-#define TARGET_REG_NAMES_P TRUE
-
-static bfd_boolean reg_names_p = TARGET_REG_NAMES_P;
-
-
-/* Predefined register names if -mregnames
- In general, there are lots of them, in an attempt to be compatible
- with a number of assemblers. */
-
-/* Structure to hold information about predefined registers. */
-struct pd_reg
- {
- const char *name;
- int value;
- };
-
-/* List of registers that are pre-defined:
-
- Each general register has predefined names of the form:
- 1. r<reg_num> which has the value <reg_num>.
- 2. r.<reg_num> which has the value <reg_num>.
-
- Each floating point register has predefined names of the form:
- 1. f<reg_num> which has the value <reg_num>.
- 2. f.<reg_num> which has the value <reg_num>.
-
- There are only four floating point registers, and these are
- commonly labelled 0,2,4 and 6. Thus, there is no f1, f3, etc.
-
- There are individual registers as well:
- rbase or r.base has the value 3 (base register)
- rpgt or r.pgt has the value 4 (page origin table pointer)
- rarg or r.arg has the value 11 (argument pointer)
- rtca or r.tca has the value 12 (table of contents pointer)
- rtoc or r.toc has the value 12 (table of contents pointer)
- sp or r.sp has the value 13 (stack pointer)
- dsa or r.dsa has the value 13 (stack pointer)
- lr has the value 14 (link reg)
-
- The table is sorted. Suitable for searching by a binary search. */
-
-static const struct pd_reg pre_defined_registers[] =
-{
- { "arg", 11 }, /* Argument Pointer. */
- { "base", 3 }, /* Base Reg. */
-
- { "f.0", 0 }, /* Floating point registers. */
- { "f.2", 2 },
- { "f.4", 4 },
- { "f.6", 6 },
-
- { "f0", 0 },
- { "f2", 2 },
- { "f4", 4 },
- { "f6", 6 },
-
- { "dsa",13 }, /* Stack pointer. */
- { "lr", 14 }, /* Link Register. */
- { "pgt", 4 }, /* Page Origin Table Pointer. */
-
- { "r.0", 0 }, /* General Purpose Registers. */
- { "r.1", 1 },
- { "r.10", 10 },
- { "r.11", 11 },
- { "r.12", 12 },
- { "r.13", 13 },
- { "r.14", 14 },
- { "r.15", 15 },
- { "r.2", 2 },
- { "r.3", 3 },
- { "r.4", 4 },
- { "r.5", 5 },
- { "r.6", 6 },
- { "r.7", 7 },
- { "r.8", 8 },
- { "r.9", 9 },
-
- { "r.arg", 11 }, /* Argument Pointer. */
- { "r.base", 3 }, /* Base Reg. */
- { "r.dsa", 13 }, /* Stack Pointer. */
- { "r.pgt", 4 }, /* Page Origin Table Pointer. */
- { "r.sp", 13 }, /* Stack Pointer. */
-
- { "r.tca", 12 }, /* Pointer to the table of contents. */
- { "r.toc", 12 }, /* Pointer to the table of contents. */
-
- { "r0", 0 }, /* More 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 },
-
- { "rbase", 3 }, /* Base Reg. */
-
- { "rtca", 12 }, /* Pointer to the table of contents. */
- { "rtoc", 12 }, /* Pointer to the table of contents. */
-
- { "sp", 13 }, /* Stack Pointer. */
-
-};
-
-#define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg))
-
-/* 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 (const struct pd_reg *regs,
- int regcount,
- const char *name)
-{
- int middle, low, high;
- int cmp;
-
- low = 0;
- high = regcount - 1;
-
- do
- {
- 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;
- }
- while (low <= high);
-
- return -1;
-}
-
-/* Summary of register_name().
-
- in: Input_line_pointer points to 1st char of operand.
-
- out: An expressionS.
- The operand may have been a register: in this case, X_op == O_register,
- X_add_number is set to the register number, and truth is returned.
- Input_line_pointer->(next non-blank) char after operand, or is in its
- original state. */
-
-static bfd_boolean
-register_name (expressionS *expressionP)
-{
- int reg_number;
- char *name;
- char *start;
- char c;
-
- /* Find the spelling of the operand. */
- start = name = input_line_pointer;
- if (name[0] == '%' && ISALPHA (name[1]))
- name = ++input_line_pointer;
-
- else if (!reg_names_p)
- return FALSE;
-
- while (' ' == *name)
- name = ++input_line_pointer;
-
- /* If it's a number, treat it as a number. If it's alpha, look to
- see if it's in the register table. */
- if (!ISALPHA (name[0]))
- reg_number = get_single_number ();
- else
- {
- c = get_symbol_name (&name);
- reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT, name);
-
- /* Put back the delimiting char. */
- (void) restore_line_pointer (c);
- }
-
- /* If numeric, make sure it's not out of bounds. */
- if ((0 <= reg_number) && (16 >= reg_number))
- {
- expressionP->X_op = O_register;
- expressionP->X_add_number = reg_number;
-
- /* Make the rest nice. */
- expressionP->X_add_symbol = NULL;
- expressionP->X_op_symbol = NULL;
- return TRUE;
- }
-
- /* Reset the line as if we had not done anything. */
- input_line_pointer = start;
- return FALSE;
-}
-
-/* Local variables. */
-
-/* The type of processor we are assembling for. This is one or more
- of the I370_OPCODE flags defined in opcode/i370.h. */
-static int i370_cpu = 0;
-
-/* The base register to use for opcode with optional operands.
- We define two of these: "text" and "other". Normally, "text"
- would get used in the .text section for branches, while "other"
- gets used in the .data section for address constants.
-
- The idea of a second base register in a different section
- is foreign to the usual HLASM-style semantics; however, it
- allows us to provide support for dynamically loaded libraries,
- by allowing us to place address constants in a section other
- than the text section. The "other" section need not be the
- .data section, it can be any section that isn't the .text section.
-
- Note that HLASM defines a multiple, concurrent .using semantic
- that we do not: in calculating offsets, it uses either the most
- recent .using directive, or the one with the smallest displacement.
- This allows HLASM to support a quasi-block-scope-like behaviour.
- Handy for people writing assembly by hand ... but not supported
- by us. */
-static int i370_using_text_regno = -1;
-static int i370_using_other_regno = -1;
-
-/* The base address for address literals. */
-static expressionS i370_using_text_baseaddr;
-static expressionS i370_using_other_baseaddr;
-
-/* the "other" section, used only for syntax error detection. */
-static segT i370_other_section = undefined_section;
-
-/* Opcode hash table. */
-static struct hash_control *i370_hash;
-
-/* Macro hash table. */
-static struct hash_control *i370_macro_hash;
-
-#ifdef OBJ_ELF
-/* What type of shared library support to use. */
-static enum { SHLIB_NONE, SHLIB_PIC, SHILB_MRELOCATABLE } shlib = SHLIB_NONE;
-#endif
-
-/* Flags to set in the elf header. */
-static flagword i370_flags = 0;
-
-#ifndef WORKING_DOT_WORD
-int md_short_jump_size = 4;
-int md_long_jump_size = 4;
-#endif
-
-#ifdef OBJ_ELF
-const char *md_shortopts = "l:um:K:VQ:";
-#else
-const char *md_shortopts = "um:";
-#endif
-struct option md_longopts[] =
-{
- {NULL, no_argument, NULL, 0}
-};
-size_t md_longopts_size = sizeof (md_longopts);
-
-int
-md_parse_option (int c, const char *arg)
-{
- switch (c)
- {
- case 'u':
- /* -u means that any undefined symbols should be treated as
- external, which is the default for gas anyhow. */
- break;
-
-#ifdef OBJ_ELF
- case 'K':
- /* Recognize -K PIC */
- if (strcmp (arg, "PIC") == 0 || strcmp (arg, "pic") == 0)
- {
- shlib = SHLIB_PIC;
- i370_flags |= EF_I370_RELOCATABLE_LIB;
- }
- else
- return 0;
-
- break;
-#endif
-
- case 'm':
-
- /* -m360 mean to assemble for the ancient 360 architecture. */
- if (strcmp (arg, "360") == 0 || strcmp (arg, "i360") == 0)
- i370_cpu = I370_OPCODE_360;
- /* -mxa means to assemble for the IBM 370 XA. */
- else if (strcmp (arg, "xa") == 0)
- i370_cpu = I370_OPCODE_370_XA;
- /* -many means to assemble for any architecture (370/XA). */
- else if (strcmp (arg, "any") == 0)
- i370_cpu = I370_OPCODE_370;
-
- else if (strcmp (arg, "regnames") == 0)
- reg_names_p = TRUE;
-
- else if (strcmp (arg, "no-regnames") == 0)
- reg_names_p = FALSE;
-
-#ifdef OBJ_ELF
- /* -mrelocatable/-mrelocatable-lib -- warn about
- initializations that require relocation. */
- else if (strcmp (arg, "relocatable") == 0)
- {
- shlib = SHILB_MRELOCATABLE;
- i370_flags |= EF_I370_RELOCATABLE;
- }
- else if (strcmp (arg, "relocatable-lib") == 0)
- {
- shlib = SHILB_MRELOCATABLE;
- i370_flags |= EF_I370_RELOCATABLE_LIB;
- }
-#endif
- else
- {
- as_bad (_("invalid switch -m%s"), arg);
- return 0;
- }
- break;
-
-#ifdef OBJ_ELF
- /* -V: SVR4 argument to print version ID. */
- case 'V':
- print_version_id ();
- break;
-
- /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
- should be emitted or not. FIXME: Not implemented. */
- case 'Q':
- break;
-
-#endif
-
- default:
- return 0;
- }
-
- return 1;
-}
-
-
-/* Set i370_cpu if it is not already set.
- Currently defaults to the reasonable superset;
- but can be made more fine grained if desired. */
-
-static void
-i370_set_cpu (void)
-{
- const char *default_os = TARGET_OS;
- const char *default_cpu = TARGET_CPU;
-
- /* Override with the superset for the moment. */
- i370_cpu = I370_OPCODE_ESA390_SUPERSET;
- if (i370_cpu == 0)
- {
- if (strcmp (default_cpu, "i360") == 0)
- i370_cpu = I370_OPCODE_360;
- else if (strcmp (default_cpu, "i370") == 0)
- i370_cpu = I370_OPCODE_370;
- else if (strcmp (default_cpu, "XA") == 0)
- i370_cpu = I370_OPCODE_370_XA;
- else
- as_fatal ("Unknown default cpu = %s, os = %s", default_cpu, default_os);
- }
-}
-
-/* Figure out the BFD architecture to use.
- FIXME: specify the different 370 architectures. */
-
-enum bfd_architecture
-i370_arch (void)
-{
- return bfd_arch_i370;
-}
-
-/* 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 (void)
-{
- const struct i370_opcode *op;
- const struct i370_opcode *op_end;
- const struct i370_macro *macro;
- const struct i370_macro *macro_end;
- bfd_boolean dup_insn = FALSE;
-
- i370_set_cpu ();
-
-#ifdef OBJ_ELF
- /* Set the ELF flags if desired. */
- if (i370_flags)
- bfd_set_private_flags (stdoutput, i370_flags);
-#endif
-
- /* Insert the opcodes into a hash table. */
- i370_hash = hash_new ();
-
- op_end = i370_opcodes + i370_num_opcodes;
- for (op = i370_opcodes; op < op_end; op++)
- {
- know ((op->opcode.i[0] & op->mask.i[0]) == op->opcode.i[0]
- && (op->opcode.i[1] & op->mask.i[1]) == op->opcode.i[1]);
-
- if ((op->flags & i370_cpu) != 0)
- {
- const char *retval;
-
- retval = hash_insert (i370_hash, op->name, (void *) op);
- if (retval != (const char *) NULL)
- {
- as_bad (_("Internal assembler error for instruction %s"), op->name);
- dup_insn = TRUE;
- }
- }
- }
-
- /* Insert the macros into a hash table. */
- i370_macro_hash = hash_new ();
-
- macro_end = i370_macros + i370_num_macros;
- for (macro = i370_macros; macro < macro_end; macro++)
- {
- if ((macro->flags & i370_cpu) != 0)
- {
- const char *retval;
-
- retval = hash_insert (i370_macro_hash, macro->name, (void *) macro);
- if (retval != (const char *) NULL)
- {
- as_bad (_("Internal assembler error for macro %s"), macro->name);
- dup_insn = TRUE;
- }
- }
- }
-
- if (dup_insn)
- abort ();
-}
-
-/* Insert an operand value into an instruction. */
-
-static i370_insn_t
-i370_insert_operand (i370_insn_t insn,
- const struct i370_operand *operand,
- offsetT val)
-{
- if (operand->insert)
- {
- const char *errmsg;
-
- /* Used for 48-bit insn's. */
- errmsg = NULL;
- insn = (*operand->insert) (insn, (long) val, &errmsg);
- if (errmsg)
- as_bad ("%s", errmsg);
- }
- else
- /* This is used only for 16, 32 bit insn's. */
- insn.i[0] |= (((long) val & ((1 << operand->bits) - 1))
- << operand->shift);
-
- return insn;
-}
-
-
-#ifdef OBJ_ELF
-/* Parse @got, etc. and return the desired relocation.
- Currently, i370 does not support (don't really need to support) any
- of these fancier markups ... for example, no one is going to
- write 'L 6,=V(bogus)@got' it just doesn't make sense (at least to me).
- So basically, we could get away with this routine returning
- BFD_RELOC_UNUSED in all circumstances. However, I'll leave
- in for now in case someone ambitious finds a good use for this stuff ...
- this routine was pretty much just copied from the powerpc code ... */
-
-static bfd_reloc_code_real_type
-i370_elf_suffix (char **str_p, expressionS *exp_p)
-{
- struct map_bfd
- {
- const char *string;
- int length;
- bfd_reloc_code_real_type reloc;
- };
-
- char ident[20];
- char *str = *str_p;
- char *str2;
- int ch;
- int len;
- struct map_bfd *ptr;
-
-#define MAP(str,reloc) { str, sizeof (str) - 1, reloc }
-
- static struct map_bfd mapping[] =
- {
- /* warnings with -mrelocatable. */
- MAP ("fixup", BFD_RELOC_CTOR),
- { (char *)0, 0, BFD_RELOC_UNUSED }
- };
-
- if (*str++ != '@')
- return BFD_RELOC_UNUSED;
-
- for (ch = *str, str2 = ident;
- (str2 < ident + sizeof (ident) - 1
- && (ISALNUM (ch) || ch == '@'));
- ch = *++str)
- *str2++ = TOLOWER (ch);
-
- *str2 = '\0';
- len = str2 - ident;
-
- ch = ident[0];
- for (ptr = &mapping[0]; ptr->length > 0; ptr++)
- if (ch == ptr->string[0]
- && len == ptr->length
- && memcmp (ident, ptr->string, ptr->length) == 0)
- {
- if (exp_p->X_add_number != 0
- && (ptr->reloc == BFD_RELOC_16_GOTOFF
- || ptr->reloc == BFD_RELOC_LO16_GOTOFF
- || ptr->reloc == BFD_RELOC_HI16_GOTOFF
- || ptr->reloc == BFD_RELOC_HI16_S_GOTOFF))
- as_warn (_("identifier+constant@got means identifier@got+constant"));
-
- /* Now check for identifier@suffix+constant */
- if (*str == '-' || *str == '+')
- {
- char *orig_line = input_line_pointer;
- expressionS new_exp;
-
- input_line_pointer = str;
- expression (&new_exp);
- if (new_exp.X_op == O_constant)
- {
- exp_p->X_add_number += new_exp.X_add_number;
- str = input_line_pointer;
- }
-
- if (&input_line_pointer != str_p)
- input_line_pointer = orig_line;
- }
-
- *str_p = str;
- return ptr->reloc;
- }
-
- return BFD_RELOC_UNUSED;
-}
-
-/* Like normal .long/.short/.word, except support @got, etc.
- Clobbers input_line_pointer, checks end-of-line. */
-
-static void
-i370_elf_cons (int nbytes) /* 1=.byte, 2=.word, 4=.long. */
-{
- expressionS exp;
- bfd_reloc_code_real_type reloc;
-
- if (is_it_end_of_statement ())
- {
- demand_empty_rest_of_line ();
- return;
- }
-
- do
- {
- expression (&exp);
-
- if (exp.X_op == O_symbol
- && *input_line_pointer == '@'
- && (reloc = i370_elf_suffix (&input_line_pointer, &exp)) != BFD_RELOC_UNUSED)
- {
- reloc_howto_type *reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc);
- int size = bfd_get_reloc_size (reloc_howto);
-
- if (size > nbytes)
- as_bad (ngettext ("%s relocations do not fit in %u byte",
- "%s relocations do not fit in %u bytes",
- nbytes),
- reloc_howto->name, nbytes);
- else
- {
- char *p = frag_more ((int) nbytes);
- int offset = nbytes - size;
-
- fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size, &exp, 0, reloc);
- }
- }
- else
- emit_expr (&exp, (unsigned int) nbytes);
- }
- while (*input_line_pointer++ == ',');
-
- input_line_pointer--; /* Put terminator back into stream. */
- demand_empty_rest_of_line ();
-}
-
-
-/* ASCII to EBCDIC conversion table. */
-static unsigned char ascebc[256] =
-{
- /*00 NL SH SX EX ET NQ AK BL */
- 0x00, 0x01, 0x02, 0x03, 0x37, 0x2D, 0x2E, 0x2F,
- /*08 BS HT LF VT FF CR SO SI */
- 0x16, 0x05, 0x15, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
- /*10 DL D1 D2 D3 D4 NK SN EB */
- 0x10, 0x11, 0x12, 0x13, 0x3C, 0x3D, 0x32, 0x26,
- /*18 CN EM SB EC FS GS RS US */
- 0x18, 0x19, 0x3F, 0x27, 0x1C, 0x1D, 0x1E, 0x1F,
- /*20 SP ! " # $ % & ' */
- 0x40, 0x5A, 0x7F, 0x7B, 0x5B, 0x6C, 0x50, 0x7D,
- /*28 ( ) * + , - . / */
- 0x4D, 0x5D, 0x5C, 0x4E, 0x6B, 0x60, 0x4B, 0x61,
- /*30 0 1 2 3 4 5 6 7 */
- 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
- /*38 8 9 : ; < = > ? */
- 0xF8, 0xF9, 0x7A, 0x5E, 0x4C, 0x7E, 0x6E, 0x6F,
- /*40 @ A B C D E F G */
- 0x7C, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
- /*48 H I J K L M N O */
- 0xC8, 0xC9, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6,
- /*50 P Q R S T U V W */
- 0xD7, 0xD8, 0xD9, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6,
- /*58 X Y Z [ \ ] ^ _ */
- 0xE7, 0xE8, 0xE9, 0xAD, 0xE0, 0xBD, 0x5F, 0x6D,
- /*60 ` a b c d e f g */
- 0x79, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
- /*68 h i j k l m n o */
- 0x88, 0x89, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96,
- /*70 p q r s t u v w */
- 0x97, 0x98, 0x99, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6,
- /*78 x y z { | } ~ DL */
- 0xA7, 0xA8, 0xA9, 0xC0, 0x4F, 0xD0, 0xA1, 0x07,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
- 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0xFF
-};
-
-/* EBCDIC to ASCII conversion table. */
-unsigned char ebcasc[256] =
-{
- /*00 NU SH SX EX PF HT LC DL */
- 0x00, 0x01, 0x02, 0x03, 0x00, 0x09, 0x00, 0x7F,
- /*08 SM VT FF CR SO SI */
- 0x00, 0x00, 0x00, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
- /*10 DE D1 D2 TM RS NL BS IL */
- 0x10, 0x11, 0x12, 0x13, 0x14, 0x0A, 0x08, 0x00,
- /*18 CN EM CC C1 FS GS RS US */
- 0x18, 0x19, 0x00, 0x00, 0x1C, 0x1D, 0x1E, 0x1F,
- /*20 DS SS FS BP LF EB EC */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x0A, 0x17, 0x1B,
- /*28 SM C2 EQ AK BL */
- 0x00, 0x00, 0x00, 0x00, 0x05, 0x06, 0x07, 0x00,
- /*30 SY PN RS UC ET */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04,
- /*38 C3 D4 NK SU */
- 0x00, 0x00, 0x00, 0x00, 0x14, 0x15, 0x00, 0x1A,
- /*40 SP */
- 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /*48 . < ( + | */
- 0x00, 0x00, 0x00, 0x2E, 0x3C, 0x28, 0x2B, 0x7C,
- /*50 & */
- 0x26, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /*58 ! $ * ) ; ^ */
- 0x00, 0x00, 0x21, 0x24, 0x2A, 0x29, 0x3B, 0x5E,
- /*60 - / */
- 0x2D, 0x2F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /*68 , % _ > ? */
- 0x00, 0x00, 0x00, 0x2C, 0x25, 0x5F, 0x3E, 0x3F,
- /*70 */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /*78 ` : # @ ' = " */
- 0x00, 0x60, 0x3A, 0x23, 0x40, 0x27, 0x3D, 0x22,
- /*80 a b c d e f g */
- 0x00, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
- /*88 h i { */
- 0x68, 0x69, 0x00, 0x7B, 0x00, 0x00, 0x00, 0x00,
- /*90 j k l m n o p */
- 0x00, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70,
- /*98 q r } */
- 0x71, 0x72, 0x00, 0x7D, 0x00, 0x00, 0x00, 0x00,
- /*A0 ~ s t u v w x */
- 0x00, 0x7E, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
- /*A8 y z [ */
- 0x79, 0x7A, 0x00, 0x00, 0x00, 0x5B, 0x00, 0x00,
- /*B0 */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /*B8 ] */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x5D, 0x00, 0x00,
- /*C0 { A B C D E F G */
- 0x7B, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
- /*C8 H I */
- 0x48, 0x49, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /*D0 } J K L M N O P */
- 0x7D, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50,
- /*D8 Q R */
- 0x51, 0x52, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /*E0 \ S T U V W X */
- 0x5C, 0x00, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58,
- /*E8 Y Z */
- 0x59, 0x5A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /*F0 0 1 2 3 4 5 6 7 */
- 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
- /*F8 8 9 */
- 0x38, 0x39, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF
-};
-
-/* EBCDIC translation tables needed for 3270 support. */
-
-static void
-i370_ebcdic (int unused ATTRIBUTE_UNUSED)
-{
- char *p, *end;
- char delim = 0;
- size_t nbytes;
-
- nbytes = strlen (input_line_pointer);
- end = input_line_pointer + nbytes;
- while ('\r' == *end) end --;
- while ('\n' == *end) end --;
-
- delim = *input_line_pointer;
- if (('\'' == delim) || ('\"' == delim))
- {
- input_line_pointer ++;
- end = rindex (input_line_pointer, delim);
- }
-
- if (end > input_line_pointer)
- {
- nbytes = end - input_line_pointer +1;
- p = frag_more (nbytes);
- while (end > input_line_pointer)
- {
- *p = ascebc [(unsigned char) (*input_line_pointer)];
- ++p; ++input_line_pointer;
- }
- *p = '\0';
- }
- if (delim == *input_line_pointer) ++input_line_pointer;
-}
-
-
-/* Stub out a couple of routines. */
-
-static void
-i370_rmode (int unused ATTRIBUTE_UNUSED)
-{
- as_tsktsk ("rmode ignored");
-}
-
-static void
-i370_dsect (int sect)
-{
- char *save_line = input_line_pointer;
- static char section[] = ".data\n";
-
- /* Just pretend this is .section .data. */
- input_line_pointer = section;
- obj_elf_section (sect);
-
- input_line_pointer = save_line;
-}
-
-static void
-i370_csect (int unused ATTRIBUTE_UNUSED)
-{
- as_tsktsk ("csect not supported");
-}
-
-
-/* DC Define Const is only partially supported.
- For sample code on what to do, look at i370_elf_cons() above.
- This code handles pseudoops of the style
- DC D'3.141592653' # in sysv4, .double 3.14159265
- DC F'1' # in sysv4, .long 1. */
-
-static void
-i370_dc (int unused ATTRIBUTE_UNUSED)
-{
- char * p, tmp[50];
- int nbytes=0;
- expressionS exp;
- char type=0;
- char * clse;
-
- if (is_it_end_of_statement ())
- {
- demand_empty_rest_of_line ();
- return;
- }
-
- /* Figure out the size. */
- type = *input_line_pointer++;
- switch (type)
- {
- case 'H': /* 16-bit */
- nbytes = 2;
- break;
- case 'E': /* 32-bit */
- case 'F': /* 32-bit */
- nbytes = 4;
- break;
- case 'D': /* 64-bit */
- nbytes = 8;
- break;
- default:
- as_bad (_("unsupported DC type"));
- return;
- }
-
- /* Get rid of pesky quotes. */
- if ('\'' == *input_line_pointer)
- {
- ++input_line_pointer;
- clse = strchr (input_line_pointer, '\'');
- if (clse)
- *clse= ' ';
- else
- as_bad (_("missing end-quote"));
- }
-
- if ('\"' == *input_line_pointer)
- {
- ++input_line_pointer;
- clse = strchr (input_line_pointer, '\"');
- if (clse)
- *clse= ' ';
- else
- as_bad (_("missing end-quote"));
- }
-
- switch (type)
- {
- case 'H': /* 16-bit */
- case 'F': /* 32-bit */
- expression (&exp);
- emit_expr (&exp, nbytes);
- break;
- case 'E': /* 32-bit */
- type = 'f';
- /* Fall through. */
- case 'D': /* 64-bit */
- md_atof (type, tmp, &nbytes);
- p = frag_more (nbytes);
- memcpy (p, tmp, nbytes);
- break;
- default:
- as_bad (_("unsupported DC type"));
- return;
- }
-
- demand_empty_rest_of_line ();
-}
-
-
-/* Provide minimal support for DS Define Storage. */
-
-static void
-i370_ds (int unused ATTRIBUTE_UNUSED)
-{
- /* DS 0H or DS 0F or DS 0D. */
- if ('0' == *input_line_pointer)
- {
- int alignment = 0; /* Left shift 1 << align. */
- input_line_pointer ++;
- switch (*input_line_pointer++)
- {
- case 'H': /* 16-bit */
- alignment = 1;
- break;
- case 'F': /* 32-bit */
- alignment = 2;
- break;
- case 'D': /* 64-bit */
- alignment = 3;
- break;
- default:
- as_bad (_("unsupported alignment"));
- return;
- }
- frag_align (alignment, 0, 0);
- record_alignment (now_seg, alignment);
- }
- else
- as_bad (_("this DS form not yet supported"));
-}
-
-/* Solaris pseudo op to change to the .rodata section. */
-
-static void
-i370_elf_rdata (int sect)
-{
- char *save_line = input_line_pointer;
- static char section[] = ".rodata\n";
-
- /* Just pretend this is .section .rodata. */
- input_line_pointer = section;
- obj_elf_section (sect);
-
- input_line_pointer = save_line;
-}
-
-/* Pseudo op to make file scope bss items. */
-
-static void
-i370_elf_lcomm (int unused ATTRIBUTE_UNUSED)
-{
- char *name;
- char c;
- char *p;
- offsetT size;
- symbolS *symbolP;
- offsetT align;
- segT old_sec;
- int old_subsec;
- char *pfrag;
- int align2;
-
- c = get_symbol_name (&name);
-
- /* Just after name is now '\0'. */
- p = input_line_pointer;
- (void) restore_line_pointer (c);
- SKIP_WHITESPACE ();
- if (*input_line_pointer != ',')
- {
- as_bad (_("Expected comma after symbol-name: rest of line ignored."));
- ignore_rest_of_line ();
- return;
- }
-
- /* Skip ','. */
- input_line_pointer++;
- if ((size = get_absolute_expression ()) < 0)
- {
- as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size);
- ignore_rest_of_line ();
- return;
- }
-
- /* The third argument to .lcomm is the alignment. */
- if (*input_line_pointer != ',')
- align = 8;
- else
- {
- ++input_line_pointer;
- align = get_absolute_expression ();
- if (align <= 0)
- {
- as_warn (_("ignoring bad alignment"));
- align = 8;
- }
- }
-
- *p = 0;
- symbolP = symbol_find_or_make (name);
- *p = c;
-
- if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
- {
- as_bad (_("Ignoring attempt to re-define symbol `%s'."),
- S_GET_NAME (symbolP));
- ignore_rest_of_line ();
- return;
- }
-
- if (S_GET_VALUE (symbolP) && S_GET_VALUE (symbolP) != (valueT) size)
- {
- as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
- S_GET_NAME (symbolP),
- (long) S_GET_VALUE (symbolP),
- (long) size);
-
- ignore_rest_of_line ();
- return;
- }
-
- /* Allocate_bss: */
- old_sec = now_seg;
- old_subsec = now_subseg;
- if (align)
- {
- /* Convert to a power of 2 alignment. */
- for (align2 = 0; (align & 1) == 0; align >>= 1, ++align2)
- ;
- if (align != 1)
- {
- as_bad (_("Common alignment not a power of 2"));
- ignore_rest_of_line ();
- return;
- }
- }
- else
- align2 = 0;
-
- record_alignment (bss_section, align2);
- subseg_set (bss_section, 0);
- if (align2)
- frag_align (align2, 0, 0);
- if (S_GET_SEGMENT (symbolP) == bss_section)
- symbol_get_frag (symbolP)->fr_symbol = 0;
- symbol_set_frag (symbolP, frag_now);
- pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size,
- (char *) 0);
- *pfrag = 0;
- S_SET_SIZE (symbolP, size);
- S_SET_SEGMENT (symbolP, bss_section);
- subseg_set (old_sec, old_subsec);
- demand_empty_rest_of_line ();
-}
-
-/* Validate any relocations emitted for -mrelocatable, possibly adding
- fixups for word relocations in writable segments, so we can adjust
- them at runtime. */
-
-static void
-i370_elf_validate_fix (fixS *fixp, segT seg)
-{
- if (fixp->fx_done || fixp->fx_pcrel)
- return;
-
- switch (shlib)
- {
- case SHLIB_NONE:
- case SHLIB_PIC:
- return;
-
- case SHILB_MRELOCATABLE:
- if (fixp->fx_r_type <= BFD_RELOC_UNUSED
- && fixp->fx_r_type != BFD_RELOC_16_GOTOFF
- && fixp->fx_r_type != BFD_RELOC_HI16_GOTOFF
- && fixp->fx_r_type != BFD_RELOC_LO16_GOTOFF
- && fixp->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
- && fixp->fx_r_type != BFD_RELOC_32_BASEREL
- && fixp->fx_r_type != BFD_RELOC_LO16_BASEREL
- && fixp->fx_r_type != BFD_RELOC_HI16_BASEREL
- && fixp->fx_r_type != BFD_RELOC_HI16_S_BASEREL
- && strcmp (segment_name (seg), ".got2") != 0
- && strcmp (segment_name (seg), ".dtors") != 0
- && strcmp (segment_name (seg), ".ctors") != 0
- && strcmp (segment_name (seg), ".fixup") != 0
- && strcmp (segment_name (seg), ".stab") != 0
- && strcmp (segment_name (seg), ".gcc_except_table") != 0
- && strcmp (segment_name (seg), ".ex_shared") != 0)
- {
- if ((seg->flags & (SEC_READONLY | SEC_CODE)) != 0
- || fixp->fx_r_type != BFD_RELOC_CTOR)
- as_bad_where (fixp->fx_file, fixp->fx_line,
- "Relocation cannot be done when using -mrelocatable");
- }
- return;
- default:
- break;
- }
-}
-#endif /* OBJ_ELF */
-
-
-#define LITERAL_POOL_SUPPORT
-#ifdef LITERAL_POOL_SUPPORT
-/* Provide support for literal pools within the text section.
- Loosely based on similar code from tc-arm.c.
- We will use four symbols to locate four parts of the literal pool.
- These four sections contain 64,32,16 and 8-bit constants; we use
- four sections so that all memory access can be appropriately aligned.
- That is, we want to avoid mixing these together so that we don't
- waste space padding out to alignments. The four pointers
- longlong_poolP, word_poolP, etc. point to a symbol labeling the
- start of each pool part.
-
- lit_pool_num increments from zero to infinity and uniquely id's
- -- it's used to generate the *_poolP symbol name. */
-
-#define MAX_LITERAL_POOL_SIZE 1024
-
-typedef struct literalS
-{
- struct expressionS exp;
- char * sym_name;
- char size; /* 1,2,4 or 8 */
- short offset;
-} literalT;
-
-literalT literals[MAX_LITERAL_POOL_SIZE];
-int next_literal_pool_place = 0; /* Next free entry in the pool. */
-
-static symbolS *longlong_poolP = NULL; /* 64-bit pool entries. */
-static symbolS *word_poolP = NULL; /* 32-bit pool entries. */
-static symbolS *short_poolP = NULL; /* 16-bit pool entries. */
-static symbolS *byte_poolP = NULL; /* 8-bit pool entries. */
-
-static int lit_pool_num = 1;
-
-/* Create a new, empty symbol. */
-static symbolS *
-symbol_make_empty (void)
-{
- return symbol_create (FAKE_LABEL_NAME, undefined_section,
- (valueT) 0, &zero_address_frag);
-}
-
-/* Make the first argument an address-relative expression
- by subtracting the second argument. */
-
-static void
-i370_make_relative (expressionS *exx, expressionS *baseaddr)
-{
- if (O_constant == baseaddr->X_op)
- {
- exx->X_op = O_symbol;
- exx->X_add_number -= baseaddr->X_add_number;
- }
- else if (O_symbol == baseaddr->X_op)
- {
- exx->X_op = O_subtract;
- exx->X_op_symbol = baseaddr->X_add_symbol;
- exx->X_add_number -= baseaddr->X_add_number;
- }
- else if (O_uminus == baseaddr->X_op)
- {
- exx->X_op = O_add;
- exx->X_op_symbol = baseaddr->X_add_symbol;
- exx->X_add_number += baseaddr->X_add_number;
- }
- else
- as_bad (_("Missing or bad .using directive"));
-}
-/* Add an expression to the literal pool. */
-
-static void
-add_to_lit_pool (expressionS *exx, char *name, int sz)
-{
- int lit_count = 0;
- int offset_in_pool = 0;
-
- /* Start a new pool, if necessary. */
- if (8 == sz && NULL == longlong_poolP)
- longlong_poolP = symbol_make_empty ();
- else if (4 == sz && NULL == word_poolP)
- word_poolP = symbol_make_empty ();
- else if (2 == sz && NULL == short_poolP)
- short_poolP = symbol_make_empty ();
- else if (1 == sz && NULL == byte_poolP)
- byte_poolP = symbol_make_empty ();
-
- /* Check if this literal value is already in the pool.
- FIXME: We should probably be checking expressions
- of type O_symbol as well.
- FIXME: This is probably(certainly?) broken for O_big,
- which includes 64-bit long-longs. */
- while (lit_count < next_literal_pool_place)
- {
- if (exx->X_op == O_constant
- && literals[lit_count].exp.X_op == exx->X_op
- && literals[lit_count].exp.X_add_number == exx->X_add_number
- && literals[lit_count].exp.X_unsigned == exx->X_unsigned
- && literals[lit_count].size == sz)
- break;
- else if (literals[lit_count].sym_name
- && name
- && !strcmp (name, literals[lit_count].sym_name))
- break;
- if (sz == literals[lit_count].size)
- offset_in_pool += sz;
- lit_count ++;
- }
-
- if (lit_count == next_literal_pool_place) /* new entry */
- {
- if (next_literal_pool_place > MAX_LITERAL_POOL_SIZE)
- as_bad (_("Literal Pool Overflow"));
-
- literals[next_literal_pool_place].exp = *exx;
- literals[next_literal_pool_place].size = sz;
- literals[next_literal_pool_place].offset = offset_in_pool;
- if (name)
- literals[next_literal_pool_place].sym_name = strdup (name);
- else
- literals[next_literal_pool_place].sym_name = NULL;
- next_literal_pool_place++;
- }
-
- /* ???_poolP points to the beginning of the literal pool.
- X_add_number is the offset from the beginning of the
- literal pool to this expr minus the location of the most
- recent .using directive. Thus, the grand total value of the
- expression is the distance from .using to the literal. */
- if (8 == sz)
- exx->X_add_symbol = longlong_poolP;
- else if (4 == sz)
- exx->X_add_symbol = word_poolP;
- else if (2 == sz)
- exx->X_add_symbol = short_poolP;
- else if (1 == sz)
- exx->X_add_symbol = byte_poolP;
- exx->X_add_number = offset_in_pool;
- exx->X_op_symbol = NULL;
-
- /* If the user has set up a base reg in another section,
- use that; otherwise use the text section. */
- if (0 < i370_using_other_regno)
- i370_make_relative (exx, &i370_using_other_baseaddr);
- else
- i370_make_relative (exx, &i370_using_text_baseaddr);
-}
-
-/* The symbol setup for the literal pool is done in two steps. First,
- a symbol that represents the start of the literal pool is created,
- above, in the add_to_pool() routine. This sym ???_poolP.
- However, we don't know what fragment it's in until a bit later.
- So we defer the frag_now thing, and the symbol name, until .ltorg time. */
-
-/* Can't use symbol_new here, so have to create a symbol and then at
- a later date assign it a value. That's what these functions do. */
-
-static void
-symbol_locate (symbolS *symbolP,
- const char *name, /* It is copied, the caller can modify. */
- segT segment, /* Segment identifier (SEG_<something>). */
- valueT valu, /* Symbol value. */
- fragS *frag) /* Associated fragment. */
-{
- size_t name_length;
- char *preserved_copy_of_name;
-
- name_length = strlen (name) + 1; /* +1 for \0 */
- obstack_grow (&notes, name, name_length);
- preserved_copy_of_name = obstack_finish (&notes);
-
- S_SET_NAME (symbolP, preserved_copy_of_name);
-
- S_SET_SEGMENT (symbolP, segment);
- S_SET_VALUE (symbolP, valu);
- symbol_clear_list_pointers (symbolP);
-
- symbol_set_frag (symbolP, frag);
-
- /* Link to end of symbol chain. */
- {
- extern int symbol_table_frozen;
-
- if (symbol_table_frozen)
- abort ();
- }
-
- symbol_append (symbolP, symbol_lastP, &symbol_rootP, &symbol_lastP);
-
- obj_symbol_new_hook (symbolP);
-
-#ifdef tc_symbol_new_hook
- tc_symbol_new_hook (symbolP);
-#endif
-
-#define DEBUG_SYMS
-#ifdef DEBUG_SYMS
- verify_symbol_chain(symbol_rootP, symbol_lastP);
-#endif /* DEBUG_SYMS */
-}
-
-/* i370_addr_offset() will convert operand expressions
- that appear to be absolute into their base-register
- relative form. These expressions come in two types:
-
- (1) of the form "* + const" * where "*" means
- relative offset since the last using
- i.e. "*" means ".-using_baseaddr"
-
- (2) labels, which are never absolute, but are always
- relative to the last "using". Anything with an alpha
- character is considered to be a label (since symbols
- can never be operands), and since we've already handled
- register operands. For example, "BL .L33" branch low
- to .L33 RX form insn frequently terminates for-loops. */
-
-static bfd_boolean
-i370_addr_offset (expressionS *exx)
-{
- char *dot, *lab;
- int islabel = 0;
- int all_digits = 0;
-
- /* Search for a label; anything with an alpha char will do.
- Local labels consist of N digits followed by either b or f. */
- lab = input_line_pointer;
- while (*lab && (',' != *lab) && ('(' != *lab))
- {
- if (ISDIGIT (*lab))
- all_digits = 1;
- else if (ISALPHA (*lab))
- {
- if (!all_digits)
- {
- islabel = 1;
- break;
- }
- else if (('f' == *lab) || ('b' == *lab))
- {
- islabel = 1;
- break;
- }
- if (all_digits)
- break;
- }
- else if ('.' != *lab)
- break;
- ++lab;
- }
-
- /* See if operand has a * in it. */
- dot = strchr (input_line_pointer, '*');
-
- if (!dot && !islabel)
- return FALSE;
-
- /* Replace * with . and let expr munch on it. */
- if (dot)
- *dot = '.';
- expression (exx);
-
- /* OK, now we have to subtract the "using" location.
- Normally branches appear in the text section only. */
- if (0 == strncmp (now_seg->name, ".text", 5) || 0 > i370_using_other_regno)
- i370_make_relative (exx, &i370_using_text_baseaddr);
- else
- i370_make_relative (exx, &i370_using_other_baseaddr);
-
- /* Put the * back. */
- if (dot)
- *dot = '*';
-
- return TRUE;
-}
-
-/* Handle address constants of various sorts. */
-/* The currently supported types are
- =A(some_symb)
- =V(some_extern)
- =X'deadbeef' hexadecimal
- =F'1234' 32-bit const int
- =H'1234' 16-bit const int. */
-
-static bfd_boolean
-i370_addr_cons (expressionS *exp)
-{
- char *name;
- char *sym_name, delim;
- int name_len;
- int hex_len = 0;
- int cons_len = 0;
-
- name = input_line_pointer;
- sym_name = input_line_pointer;
- /* Find the spelling of the operand. */
- if (name[0] == '=' && ISALPHA (name[1]))
- name = ++input_line_pointer;
- else
- return FALSE;
-
- switch (name[0])
- {
- case 'A': /* A == address-of. */
- case 'V': /* V == extern. */
- ++input_line_pointer;
- expression (exp);
-
- /* We use a simple string name to collapse together
- multiple references to the same address literal. */
- name_len = strcspn (sym_name, ", ");
- delim = *(sym_name + name_len);
- *(sym_name + name_len) = 0x0;
- add_to_lit_pool (exp, sym_name, 4);
- *(sym_name + name_len) = delim;
-
- break;
- case 'H':
- case 'F':
- case 'X':
- case 'E': /* Single-precision float point. */
- case 'D': /* Double-precision float point. */
-
- /* H == 16-bit fixed-point const; expression must be const. */
- /* F == fixed-point const; expression must be const. */
- /* X == fixed-point const; expression must be const. */
- if ('H' == name[0]) cons_len = 2;
- else if ('F' == name[0]) cons_len = 4;
- else if ('X' == name[0]) cons_len = -1;
- else if ('E' == name[0]) cons_len = 4;
- else if ('D' == name[0]) cons_len = 8;
-
- /* Extract length, if it is present;
- FIXME: assume single-digit length. */
- if ('L' == name[1])
- {
- /* Should work for ASCII and EBCDIC. */
- cons_len = name[2] - '0';
- input_line_pointer += 2;
- }
-
- ++input_line_pointer;
-
- /* Get rid of pesky quotes. */
- if ('\'' == *input_line_pointer)
- {
- char * clse;
-
- ++input_line_pointer;
- clse = strchr (input_line_pointer, '\'');
- if (clse)
- *clse= ' ';
- else
- as_bad (_("missing end-quote"));
- }
- if ('\"' == *input_line_pointer)
- {
- char * clse;
-
- ++input_line_pointer;
- clse = strchr (input_line_pointer, '\"');
- if (clse)
- *clse= ' ';
- else
- as_bad (_("missing end-quote"));
- }
- if (('X' == name[0]) || ('E' == name[0]) || ('D' == name[0]))
- {
- char tmp[50];
- char *save;
-
- /* The length of hex constants is specified directly with L,
- or implied through the number of hex digits. For example:
- =X'AB' one byte
- =X'abcd' two bytes
- =X'000000AB' four bytes
- =XL4'AB' four bytes, left-padded with zero. */
- if (('X' == name[0]) && (0 > cons_len))
- {
- save = input_line_pointer;
- while (*save)
- {
- if (ISXDIGIT (*save))
- hex_len++;
- save++;
- }
- cons_len = (hex_len+1) /2;
- }
- /* I believe this works even for =XL8'dada0000beeebaaa'
- which should parse out to X_op == O_big
- Note that floats and doubles get represented as
- 0d3.14159265358979 or 0f 2.7. */
- tmp[0] = '0';
- tmp[1] = name[0];
- tmp[2] = 0;
- strcat (tmp, input_line_pointer);
- save = input_line_pointer;
- input_line_pointer = tmp;
- expression (exp);
- input_line_pointer = save + (input_line_pointer-tmp-2);
-
- /* Fix up lengths for floats and doubles. */
- if (O_big == exp->X_op)
- exp->X_add_number = cons_len / CHARS_PER_LITTLENUM;
- }
- else
- expression (exp);
-
- /* O_big occurs when more than 4 bytes worth gets parsed. */
- if ((exp->X_op != O_constant) && (exp->X_op != O_big))
- {
- as_bad (_("expression not a constant"));
- return FALSE;
- }
- add_to_lit_pool (exp, 0x0, cons_len);
- break;
-
- default:
- as_bad (_("Unknown/unsupported address literal type"));
- return FALSE;
- }
-
- return TRUE;
-}
-
-
-/* Dump the contents of the literal pool that we've accumulated so far.
- This aligns the pool to the size of the largest literal in the pool. */
-
-static void
-i370_ltorg (int ignore ATTRIBUTE_UNUSED)
-{
- int litsize;
- int lit_count = 0;
- int biggest_literal_size = 0;
- int biggest_align = 0;
- char pool_name[20];
-
- if (strncmp (now_seg->name, ".text", 5))
- {
- if (i370_other_section == undefined_section)
- as_bad (_(".ltorg without prior .using in section %s"),
- now_seg->name);
-
- if (i370_other_section != now_seg)
- as_bad (_(".ltorg in section %s paired to .using in section %s"),
- now_seg->name, i370_other_section->name);
- }
-
- if (! longlong_poolP
- && ! word_poolP
- && ! short_poolP
- && ! byte_poolP)
- /* Nothing to do. */
- return;
-
- /* Find largest literal .. 2 4 or 8. */
- lit_count = 0;
- while (lit_count < next_literal_pool_place)
- {
- if (biggest_literal_size < literals[lit_count].size)
- biggest_literal_size = literals[lit_count].size;
- lit_count ++;
- }
- if (1 == biggest_literal_size) biggest_align = 0;
- else if (2 == biggest_literal_size) biggest_align = 1;
- else if (4 == biggest_literal_size) biggest_align = 2;
- else if (8 == biggest_literal_size) biggest_align = 3;
- else as_bad (_("bad alignment of %d bytes in literal pool"), biggest_literal_size);
- if (0 == biggest_align) biggest_align = 1;
-
- /* Align pool for short, word, double word accesses. */
- frag_align (biggest_align, 0, 0);
- record_alignment (now_seg, biggest_align);
-
- /* Note that the gas listing will print only the first five
- entries in the pool .... wonder how to make it print more. */
- /* Output largest literals first, then the smaller ones. */
- for (litsize=8; litsize; litsize /=2)
- {
- symbolS *current_poolP = NULL;
- switch (litsize)
- {
- case 8:
- current_poolP = longlong_poolP; break;
- case 4:
- current_poolP = word_poolP; break;
- case 2:
- current_poolP = short_poolP; break;
- case 1:
- current_poolP = byte_poolP; break;
- default:
- as_bad (_("bad literal size\n"));
- }
- if (NULL == current_poolP)
- continue;
- sprintf (pool_name, ".LITP%01d%06d", litsize, lit_pool_num);
- symbol_locate (current_poolP, pool_name, now_seg,
- (valueT) frag_now_fix (), frag_now);
- symbol_table_insert (current_poolP);
-
- lit_count = 0;
- while (lit_count < next_literal_pool_place)
- {
- if (litsize == literals[lit_count].size)
- {
-#define EMIT_ADDR_CONS_SYMBOLS
-#ifdef EMIT_ADDR_CONS_SYMBOLS
- /* Create a bogus symbol, add it to the pool ...
- For the most part, I think this is a useless exercise,
- except that having these symbol names in the objects
- is vaguely useful for debugging. */
- if (literals[lit_count].sym_name)
- {
- symbolS * symP = symbol_make_empty ();
- symbol_locate (symP, literals[lit_count].sym_name, now_seg,
- (valueT) frag_now_fix (), frag_now);
- symbol_table_insert (symP);
- }
-#endif /* EMIT_ADDR_CONS_SYMBOLS */
-
- emit_expr (&(literals[lit_count].exp), literals[lit_count].size);
- }
- lit_count ++;
- }
- }
-
- next_literal_pool_place = 0;
- longlong_poolP = NULL;
- word_poolP = NULL;
- short_poolP = NULL;
- byte_poolP = NULL;
- lit_pool_num++;
-}
-
-#endif /* LITERAL_POOL_SUPPORT */
-
-
-/* Add support for the HLASM-like USING directive to indicate
- the base register to use ... we don't support the full
- hlasm semantics for this ... we merely pluck a base address
- and a register number out. We print a warning if using is
- called multiple times. I suppose we should check to see
- if the regno is valid. */
-
-static void
-i370_using (int ignore ATTRIBUTE_UNUSED)
-{
- expressionS ex, baseaddr;
- int iregno;
- char *star;
-
- /* If "*" appears in a using, it means "."
- replace it with "." so that expr doesn't get confused. */
- star = strchr (input_line_pointer, '*');
- if (star)
- *star = '.';
-
- /* The first arg to using will usually be ".", but it can
- be a more complex expression too. */
- expression (&baseaddr);
- if (star)
- *star = '*';
- if (O_constant != baseaddr.X_op
- && O_symbol != baseaddr.X_op
- && O_uminus != baseaddr.X_op)
- as_bad (_(".using: base address expression illegal or too complex"));
-
- if (*input_line_pointer != '\0') ++input_line_pointer;
-
- /* The second arg to using had better be a register. */
- register_name (&ex);
- demand_empty_rest_of_line ();
- iregno = ex.X_add_number;
-
- if (0 == strncmp (now_seg->name, ".text", 5))
- {
- i370_using_text_baseaddr = baseaddr;
- i370_using_text_regno = iregno;
- }
- else
- {
- i370_using_other_baseaddr = baseaddr;
- i370_using_other_regno = iregno;
- i370_other_section = now_seg;
- }
-}
-
-static void
-i370_drop (int ignore ATTRIBUTE_UNUSED)
-{
- expressionS ex;
- int iregno;
-
- register_name (&ex);
- demand_empty_rest_of_line ();
- iregno = ex.X_add_number;
-
- if (0 == strncmp (now_seg->name, ".text", 5))
- {
- if (iregno != i370_using_text_regno)
- as_bad (_("dropping register %d in section %s does not match using register %d"),
- iregno, now_seg->name, i370_using_text_regno);
-
- i370_using_text_regno = -1;
- i370_using_text_baseaddr.X_op = O_absent;
- }
- else
- {
- if (iregno != i370_using_other_regno)
- as_bad (_("dropping register %d in section %s does not match using register %d"),
- iregno, now_seg->name, i370_using_other_regno);
-
- if (i370_other_section != now_seg)
- as_bad (_("dropping register %d in section %s previously used in section %s"),
- iregno, now_seg->name, i370_other_section->name);
-
- i370_using_other_regno = -1;
- i370_using_other_baseaddr.X_op = O_absent;
- i370_other_section = undefined_section;
- }
-}
-
-
-/* We need to keep a list of fixups. We can't simply generate them as
- we go, because that would require us to first create the frag, and
- that would screw up references to ``.''. */
-
-struct i370_fixup
-{
- expressionS exp;
- int opindex;
- bfd_reloc_code_real_type reloc;
-};
-
-#define MAX_INSN_FIXUPS 5
-
-/* Handle a macro. Gather all the operands, transform them as
- described by the macro, and call md_assemble recursively. All the
- operands are separated by commas; we don't accept parentheses
- around operands here. */
-
-static void
-i370_macro (char *str, const struct i370_macro *macro)
-{
- char *operands[10];
- unsigned int count;
- char *s;
- unsigned int len;
- const char *format;
- int arg;
- char *send;
- char *complete;
-
- /* Gather the users operands into the operands array. */
- count = 0;
- s = str;
- while (1)
- {
- if (count >= sizeof operands / sizeof operands[0])
- break;
- operands[count++] = s;
- s = strchr (s, ',');
- if (s == (char *) NULL)
- break;
- *s++ = '\0';
- }
-
- if (count != macro->operands)
- {
- as_bad (_("wrong number of operands"));
- return;
- }
-
- /* Work out how large the string must be (the size is unbounded
- because it includes user input). */
- len = 0;
- format = macro->format;
- while (*format != '\0')
- {
- if (*format != '%')
- {
- ++len;
- ++format;
- }
- else
- {
- arg = strtol (format + 1, &send, 10);
- know (send != format && arg >= 0 && (unsigned) arg < count);
- len += strlen (operands[arg]);
- format = send;
- }
- }
-
- /* Put the string together. */
- complete = s = XNEWVEC (char, len + 1);
- format = macro->format;
- while (*format != '\0')
- {
- if (*format != '%')
- *s++ = *format++;
- else
- {
- arg = strtol (format + 1, &send, 10);
- strcpy (s, operands[arg]);
- s += strlen (s);
- format = send;
- }
- }
- *s = '\0';
-
- /* Assemble the constructed instruction. */
- md_assemble (complete);
- free (complete);
-}
-
-/* This routine is called for each instruction to be assembled. */
-
-void
-md_assemble (char *str)
-{
- char *s;
- const struct i370_opcode *opcode;
- i370_insn_t insn;
- const unsigned char *opindex_ptr;
- int have_optional_index, have_optional_basereg, have_optional_reg;
- int skip_optional_index, skip_optional_basereg, skip_optional_reg;
- int use_text=0, use_other=0;
- int off_by_one;
- struct i370_fixup fixups[MAX_INSN_FIXUPS];
- int fc;
- char *f;
- int i;
-#ifdef OBJ_ELF
- bfd_reloc_code_real_type reloc;
-#endif
-
- /* Get the opcode. */
- for (s = str; *s != '\0' && ! ISSPACE (*s); s++)
- ;
- if (*s != '\0')
- *s++ = '\0';
-
- /* Look up the opcode in the hash table. */
- opcode = (const struct i370_opcode *) hash_find (i370_hash, str);
- if (opcode == (const struct i370_opcode *) NULL)
- {
- const struct i370_macro *macro;
-
- gas_assert (i370_macro_hash);
- macro = (const struct i370_macro *) hash_find (i370_macro_hash, str);
- if (macro == (const struct i370_macro *) NULL)
- as_bad (_("Unrecognized opcode: `%s'"), str);
- else
- i370_macro (s, macro);
-
- return;
- }
-
- insn = opcode->opcode;
-
- str = s;
- while (ISSPACE (*str))
- ++str;
-
- /* I370 operands are either expressions or address constants.
- Many operand types are optional. The optional operands
- are always surrounded by parens, and are used to denote the base
- register ... e.g. "A R1, D2" or "A R1, D2(,B2) as opposed to
- the fully-formed "A R1, D2(X2,B2)". Note also the = sign,
- such as A R1,=A(i) where the address-of operator =A implies
- use of both a base register, and a missing index register.
-
- So, before we start seriously parsing the operands, we check
- to see if we have an optional operand, and, if we do, we count
- the number of commas to see which operand should be omitted. */
-
- have_optional_index = have_optional_basereg = have_optional_reg = 0;
- for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
- {
- const struct i370_operand *operand;
-
- operand = &i370_operands[*opindex_ptr];
- if ((operand->flags & I370_OPERAND_INDEX) != 0)
- have_optional_index = 1;
- if ((operand->flags & I370_OPERAND_BASE) != 0)
- have_optional_basereg = 1;
- if ((operand->flags & I370_OPERAND_OPTIONAL) != 0)
- have_optional_reg = 1;
- }
-
- skip_optional_index = skip_optional_basereg = skip_optional_reg = 0;
- if (have_optional_index || have_optional_basereg)
- {
- unsigned int opcount, nwanted;
-
- /* There is an optional operand. Count the number of
- commas and open-parens in the input line. */
- if (*str == '\0')
- opcount = 0;
- else
- {
- opcount = 1;
- s = str;
- while ((s = strpbrk (s, ",(=")) != (char *) NULL)
- {
- ++opcount;
- ++s;
- if (',' == *s) ++s; /* avoid counting things like (, */
- if ('=' == *s) { ++s; --opcount; }
- }
- }
-
- /* If there are fewer operands in the line then are called
- for by the instruction, we want to skip the optional
- operand. */
- nwanted = strlen ((char *) opcode->operands);
- if (have_optional_index)
- {
- if (opcount < nwanted)
- skip_optional_index = 1;
- if (have_optional_basereg && ((opcount+1) < nwanted))
- skip_optional_basereg = 1;
- if (have_optional_reg && ((opcount+1) < nwanted))
- skip_optional_reg = 1;
- }
- else
- {
- if (have_optional_basereg && (opcount < nwanted))
- skip_optional_basereg = 1;
- if (have_optional_reg && (opcount < nwanted))
- skip_optional_reg = 1;
- }
- }
-
- /* Perform some off-by-one hacks on the length field of certain instructions.
- It's such a shame to have to do this, but the problem is that HLASM got
- defined so that the lengths differ by one from the actual machine instructions.
- this code should probably be moved to a special inter-operand routine.
- Sigh. Affected instructions are Compare Logical, Move and Exclusive OR
- hack alert -- aren't *all* SS instructions affected ?? */
- off_by_one = 0;
- if (0 == strcasecmp ("CLC", opcode->name)
- || 0 == strcasecmp ("ED", opcode->name)
- || 0 == strcasecmp ("EDMK", opcode->name)
- || 0 == strcasecmp ("MVC", opcode->name)
- || 0 == strcasecmp ("MVCIN", opcode->name)
- || 0 == strcasecmp ("MVN", opcode->name)
- || 0 == strcasecmp ("MVZ", opcode->name)
- || 0 == strcasecmp ("NC", opcode->name)
- || 0 == strcasecmp ("OC", opcode->name)
- || 0 == strcasecmp ("XC", opcode->name))
- off_by_one = 1;
-
- /* Gather the operands. */
- fc = 0;
- for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
- {
- const struct i370_operand *operand;
- char *hold;
- expressionS ex;
-
- operand = &i370_operands[*opindex_ptr];
-
- /* If this is an index operand, and we are skipping it,
- just insert a zero. */
- if (skip_optional_index &&
- ((operand->flags & I370_OPERAND_INDEX) != 0))
- {
- insn = i370_insert_operand (insn, operand, 0);
- continue;
- }
-
- /* If this is the base operand, and we are skipping it,
- just insert the current using basreg. */
- if (skip_optional_basereg &&
- ((operand->flags & I370_OPERAND_BASE) != 0))
- {
- int basereg = -1;
- if (use_text)
- {
- if (0 == strncmp (now_seg->name, ".text", 5)
- || 0 > i370_using_other_regno)
- basereg = i370_using_text_regno;
- else
- basereg = i370_using_other_regno;
- }
- else if (use_other)
- {
- if (0 > i370_using_other_regno)
- basereg = i370_using_text_regno;
- else
- basereg = i370_using_other_regno;
- }
- if (0 > basereg)
- as_bad (_("not using any base register"));
-
- insn = i370_insert_operand (insn, operand, basereg);
- continue;
- }
-
- /* If this is an optional operand, and we are skipping it,
- Use zero (since a non-zero value would denote a register) */
- if (skip_optional_reg
- && ((operand->flags & I370_OPERAND_OPTIONAL) != 0))
- {
- insn = i370_insert_operand (insn, operand, 0);
- continue;
- }
-
- /* Gather the operand. */
- hold = input_line_pointer;
- input_line_pointer = str;
-
- /* Register names are only allowed where there are registers. */
- if ((operand->flags & I370_OPERAND_GPR) != 0)
- {
- /* Quickie hack to get past things like (,r13). */
- if (skip_optional_index && (',' == *input_line_pointer))
- {
- *input_line_pointer = ' ';
- input_line_pointer ++;
- }
-
- if (! register_name (&ex))
- as_bad (_("expecting a register for operand %d"),
- (int) (opindex_ptr - opcode->operands + 1));
- }
-
- /* Check for an address constant expression. */
- /* We will put PSW-relative addresses in the text section,
- and address literals in the .data (or other) section. */
- else if (i370_addr_cons (&ex))
- use_other = 1;
- else if (i370_addr_offset (&ex))
- use_text = 1;
- else expression (&ex);
-
- str = input_line_pointer;
- input_line_pointer = hold;
-
- /* Perform some off-by-one hacks on the length field of certain instructions.
- It's such a shame to have to do this, but the problem is that HLASM got
- defined so that the programmer specifies a length that is one greater
- than what the machine instruction wants. Sigh. */
- if (off_by_one && (0 == strcasecmp ("SS L", operand->name)))
- ex.X_add_number --;
-
- if (ex.X_op == O_illegal)
- as_bad (_("illegal operand"));
- else if (ex.X_op == O_absent)
- as_bad (_("missing operand"));
- else if (ex.X_op == O_register)
- insn = i370_insert_operand (insn, operand, ex.X_add_number);
- else if (ex.X_op == O_constant)
- {
-#ifdef OBJ_ELF
- /* Allow @HA, @L, @H on constants.
- Well actually, no we don't; there really don't make sense
- (at least not to me) for the i370. However, this code is
- left here for any dubious future expansion reasons. */
- char *orig_str = str;
-
- if ((reloc = i370_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
- switch (reloc)
- {
- default:
- str = orig_str;
- break;
-
- case BFD_RELOC_LO16:
- /* X_unsigned is the default, so if the user has done
- something which cleared it, we always produce a
- signed value. */
- ex.X_add_number = (((ex.X_add_number & 0xffff)
- ^ 0x8000)
- - 0x8000);
- break;
-
- case BFD_RELOC_HI16:
- ex.X_add_number = (ex.X_add_number >> 16) & 0xffff;
- break;
-
- case BFD_RELOC_HI16_S:
- ex.X_add_number = (((ex.X_add_number >> 16) & 0xffff)
- + ((ex.X_add_number >> 15) & 1));
- break;
- }
-#endif
- insn = i370_insert_operand (insn, operand, ex.X_add_number);
- }
-#ifdef OBJ_ELF
- else if ((reloc = i370_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
- {
- as_tsktsk ("md_assemble(): suffixed relocations not supported\n");
-
- /* We need to generate a fixup for this expression. */
- if (fc >= MAX_INSN_FIXUPS)
- as_fatal ("too many fixups");
- fixups[fc].exp = ex;
- fixups[fc].opindex = 0;
- fixups[fc].reloc = reloc;
- ++fc;
- }
-#endif /* OBJ_ELF */
- else
- {
- /* We need to generate a fixup for this expression. */
- /* Typically, the expression will just be a symbol ...
- printf ("insn %s needs fixup for %s \n",
- opcode->name, ex.X_add_symbol->bsym->name); */
-
- if (fc >= MAX_INSN_FIXUPS)
- as_fatal ("too many fixups");
- fixups[fc].exp = ex;
- fixups[fc].opindex = *opindex_ptr;
- fixups[fc].reloc = BFD_RELOC_UNUSED;
- ++fc;
- }
-
- /* Skip over delimiter (close paren, or comma). */
- if ((')' == *str) && (',' == *(str+1)))
- ++str;
- if (*str != '\0')
- ++str;
- }
-
- while (ISSPACE (*str))
- ++str;
-
- if (*str != '\0')
- as_bad (_("junk at end of line: `%s'"), str);
-
- /* Write out the instruction. */
- f = frag_more (opcode->len);
- if (4 >= opcode->len)
- md_number_to_chars (f, insn.i[0], opcode->len);
- else
- {
- md_number_to_chars (f, insn.i[0], 4);
-
- if (6 == opcode->len)
- md_number_to_chars ((f + 4), ((insn.i[1])>>16), 2);
- else
- {
- /* Not used --- don't have any 8 byte instructions. */
- as_bad (_("Internal Error: bad instruction length"));
- md_number_to_chars ((f + 4), insn.i[1], opcode->len -4);
- }
- }
-
- /* Create any fixups. At this point we do not use a
- bfd_reloc_code_real_type, but instead just use the
- 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_fix. */
- for (i = 0; i < fc; i++)
- {
- const struct i370_operand *operand;
-
- operand = &i370_operands[fixups[i].opindex];
- if (fixups[i].reloc != BFD_RELOC_UNUSED)
- {
- reloc_howto_type *reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc);
- int size;
- fixS *fixP;
-
- if (!reloc_howto)
- abort ();
-
- size = bfd_get_reloc_size (reloc_howto);
-
- if (size < 1 || size > 4)
- abort ();
-
- printf (" gwana do fixup %d \n", i);
- fixP = fix_new_exp (frag_now, f - frag_now->fr_literal, size,
- &fixups[i].exp, reloc_howto->pc_relative,
- fixups[i].reloc);
-
- /* Turn off complaints that the addend is too large for things like
- foo+100000@ha. */
- switch (fixups[i].reloc)
- {
- case BFD_RELOC_16_GOTOFF:
- case BFD_RELOC_LO16:
- case BFD_RELOC_HI16:
- case BFD_RELOC_HI16_S:
- fixP->fx_no_overflow = 1;
- break;
- default:
- break;
- }
- }
- else
- {
- fix_new_exp (frag_now, f - frag_now->fr_literal, opcode->len,
- &fixups[i].exp,
- (operand->flags & I370_OPERAND_RELATIVE) != 0,
- ((bfd_reloc_code_real_type)
- (fixups[i].opindex + (int) BFD_RELOC_UNUSED)));
- }
- }
-}
-
-
-/* Pseudo-op handling. */
-
-/* The .byte pseudo-op. This is similar to the normal .byte
- pseudo-op, but it can also take a single ASCII string. */
-
-static void
-i370_byte (int ignore ATTRIBUTE_UNUSED)
-{
- if (*input_line_pointer != '\"')
- {
- cons (1);
- return;
- }
-
- /* Gather characters. A real double quote is doubled. Unusual
- characters are not permitted. */
- ++input_line_pointer;
- while (1)
- {
- char c;
-
- c = *input_line_pointer++;
-
- if (c == '\"')
- {
- if (*input_line_pointer != '\"')
- break;
- ++input_line_pointer;
- }
-
- FRAG_APPEND_1_CHAR (c);
- }
-
- demand_empty_rest_of_line ();
-}
-
-/* The .tc pseudo-op. This is used when generating XCOFF and ELF.
- This takes two or more arguments.
-
- When generating XCOFF output, the first argument is the name to
- give to this location in the toc; this will be a symbol with class
- TC. The rest of the arguments are 4 byte values to actually put at
- this location in the TOC; often there is just one more argument, a
- relocatable symbol reference.
-
- When not generating XCOFF output, the arguments are the same, but
- the first argument is simply ignored. */
-
-static void
-i370_tc (int ignore ATTRIBUTE_UNUSED)
-{
-
- /* Skip the TOC symbol name. */
- while (is_part_of_name (*input_line_pointer)
- || *input_line_pointer == '['
- || *input_line_pointer == ']'
- || *input_line_pointer == '{'
- || *input_line_pointer == '}')
- ++input_line_pointer;
-
- /* Align to a four byte boundary. */
- frag_align (2, 0, 0);
- record_alignment (now_seg, 2);
-
- if (*input_line_pointer != ',')
- demand_empty_rest_of_line ();
- else
- {
- ++input_line_pointer;
- cons (4);
- }
-}
-
-const char *
-md_atof (int type, char *litp, int *sizep)
-{
- /* 360/370/390 have two float formats: an old, funky 360 single-precision
- format, and the ieee format. Support only the ieee format. */
- return ieee_md_atof (type, litp, sizep, TRUE);
-}
-
-/* Write a value out to the object file, using the appropriate
- endianness. */
-
-void
-md_number_to_chars (char *buf, valueT val, int n)
-{
- number_to_chars_bigendian (buf, val, n);
-}
-
-/* Align a section (I don't know why this is machine dependent). */
-
-valueT
-md_section_align (asection *seg, valueT addr)
-{
- int align = bfd_get_section_alignment (stdoutput, seg);
-
- return (addr + (1 << align) - 1) & -(1 << align);
-}
-
-/* We don't have any form of relaxing. */
-
-int
-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 (bfd *abfd ATTRIBUTE_UNUSED,
- asection *sec ATTRIBUTE_UNUSED,
- fragS *fragp ATTRIBUTE_UNUSED)
-{
- abort ();
-}
-
-/* We have no need to default values of symbols. */
-
-symbolS *
-md_undefined_symbol (char *name ATTRIBUTE_UNUSED)
-{
- return 0;
-}
-
-/* Functions concerning relocs. */
-
-/* The location from which a PC relative jump should be calculated,
- given a PC relative reloc. */
-
-long
-md_pcrel_from_section (fixS *fixp, segT sec ATTRIBUTE_UNUSED)
-{
- return fixp->fx_frag->fr_address + fixp->fx_where;
-}
-
-/* Apply a fixup to the object code. This is called for all the
- fixups we generated by the call to fix_new_exp, above. In the call
- above we used a reloc code which was the largest legal reloc code
- plus the operand index. Here we undo that to recover the operand
- index. At this point all symbol values should be fully resolved,
- and we attempt to completely resolve the reloc. If we can not do
- that, we determine the correct reloc code and put it back in the
- fixup.
-
- See gas/cgen.c for more sample code and explanations of what's
- going on here. */
-
-void
-md_apply_fix (fixS *fixP, valueT * valP, segT seg)
-{
- valueT value = * valP;
-
- if (fixP->fx_addsy != NULL)
- {
-#ifdef DEBUG
- printf ("\nmd_apply_fix: symbol %s at 0x%x (%s:%d) val=0x%x addend=0x%x\n",
- S_GET_NAME (fixP->fx_addsy),
- fixP->fx_frag->fr_address + fixP->fx_where,
- fixP->fx_file, fixP->fx_line,
- S_GET_VALUE (fixP->fx_addsy), value);
-#endif
- }
- else
- fixP->fx_done = 1;
-
- /* Apply fixups to operands. Note that there should be no relocations
- for any operands, since no instruction ever takes an operand
- that requires reloc. */
- if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED)
- {
- int opindex;
- const struct i370_operand *operand;
- char *where;
- i370_insn_t insn;
-
- opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED;
-
- operand = &i370_operands[opindex];
-
-#ifdef DEBUG
- printf ("\nmd_apply_fix: fixup operand %s at 0x%x in %s:%d addend=0x%x\n",
- operand->name,
- fixP->fx_frag->fr_address + fixP->fx_where,
- fixP->fx_file, fixP->fx_line,
- value);
-#endif
- /* Fetch the instruction, insert the fully resolved operand
- value, and stuff the instruction back again.
- fisxp->fx_size is the length of the instruction. */
- where = fixP->fx_frag->fr_literal + fixP->fx_where;
- insn.i[0] = bfd_getb32 ((unsigned char *) where);
-
- if (6 <= fixP->fx_size)
- /* Deal with 48-bit insn's. */
- insn.i[1] = bfd_getb32 (((unsigned char *) where)+4);
-
- insn = i370_insert_operand (insn, operand, (offsetT) value);
- bfd_putb32 ((bfd_vma) insn.i[0], (unsigned char *) where);
-
- if (6 <= fixP->fx_size)
- /* Deal with 48-bit insn's. */
- bfd_putb32 ((bfd_vma) insn.i[1], (((unsigned char *) where)+4));
-
- /* We are done, right? right !! */
- fixP->fx_done = 1;
- if (fixP->fx_done)
- /* Nothing else to do here. */
- return;
-
- /* Determine a BFD reloc value based on the operand information.
- We are only prepared to turn a few of the operands into
- relocs. In fact, we support *zero* operand relocations ...
- Why? Because we are not expecting the compiler to generate
- any operands that need relocation. Due to the 12-bit nature of
- i370 addressing, this would be unusual. */
- {
- const char *sfile;
- unsigned int sline;
-
- /* Use expr_symbol_where to see if this is an expression
- symbol. */
- if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline))
- as_bad_where (fixP->fx_file, fixP->fx_line,
- "unresolved expression that must be resolved");
- else
- as_bad_where (fixP->fx_file, fixP->fx_line,
- "unsupported relocation type");
- fixP->fx_done = 1;
- return;
- }
- }
- else
- {
- /* We branch to here if the fixup is not to a symbol that
- appears in an instruction operand, but is rather some
- declared storage. */
-#ifdef OBJ_ELF
- i370_elf_validate_fix (fixP, seg);
-#endif
-#ifdef DEBUG
- printf ("md_apply_fix: reloc case %d in segment %s %s:%d\n",
- fixP->fx_r_type, segment_name (seg), fixP->fx_file, fixP->fx_line);
- printf ("\tcurrent fixup value is 0x%x \n", value);
-#endif
- switch (fixP->fx_r_type)
- {
- case BFD_RELOC_32:
- case BFD_RELOC_CTOR:
- if (fixP->fx_pcrel)
- fixP->fx_r_type = BFD_RELOC_32_PCREL;
- /* Fall through. */
-
- case BFD_RELOC_RVA:
- case BFD_RELOC_32_PCREL:
- case BFD_RELOC_32_BASEREL:
-#ifdef DEBUG
- printf ("\t32 bit relocation at 0x%x\n",
- fixP->fx_frag->fr_address + fixP->fx_where);
-#endif
- md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
- value, 4);
- break;
-
- case BFD_RELOC_LO16:
- case BFD_RELOC_16:
- if (fixP->fx_pcrel)
- as_bad_where (fixP->fx_file, fixP->fx_line,
- "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
- ? S_GET_NAME (fixP->fx_addsy)
- : ""));
-
- md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
- value, 2);
- break;
-
- /* This case happens when you write, for example,
- lis %r3,(L1-L2)@ha
- where L1 and L2 are defined later. */
- case BFD_RELOC_HI16:
- if (fixP->fx_pcrel)
- abort ();
- md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
- value >> 16, 2);
- break;
- case BFD_RELOC_HI16_S:
- if (fixP->fx_pcrel)
- abort ();
- md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
- (value + 0x8000) >> 16, 2);
- break;
-
- case BFD_RELOC_8:
- if (fixP->fx_pcrel)
- abort ();
-
- md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
- value, 1);
- break;
-
- default:
- fprintf (stderr,
- "Gas failure, reloc value %d\n", fixP->fx_r_type);
- fflush (stderr);
- abort ();
- }
- }
-
- fixP->fx_addnumber = value;
-}
-
-/* Generate a reloc for a fixup. */
-
-arelent *
-tc_gen_reloc (asection *seg ATTRIBUTE_UNUSED, fixS *fixp)
-{
- arelent *reloc;
-
- reloc = XNEW (arelent);
-
- reloc->sym_ptr_ptr = XNEW (asymbol *);
- *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
- reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
- reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
- if (reloc->howto == (reloc_howto_type *) NULL)
- {
- as_bad_where (fixp->fx_file, fixp->fx_line,
- "reloc %d not supported by object file format", (int)fixp->fx_r_type);
- return NULL;
- }
- reloc->addend = fixp->fx_addnumber;
-
-#ifdef DEBUG
- printf ("\ngen_reloc(): sym %s (%s:%d) at addr 0x%x addend=0x%x\n",
- fixp->fx_addsy->bsym->name,
- fixp->fx_file, fixp->fx_line,
- reloc->address, reloc->addend);
-#endif
-
- return reloc;
-}
-
-/* The target specific pseudo-ops which we support. */
-
-const pseudo_typeS md_pseudo_table[] =
-{
- /* Pseudo-ops which must be overridden. */
- { "byte", i370_byte, 0 },
-
- { "dc", i370_dc, 0 },
- { "ds", i370_ds, 0 },
- { "rmode", i370_rmode, 0 },
- { "csect", i370_csect, 0 },
- { "dsect", i370_dsect, 0 },
-
- /* enable ebcdic strings e.g. for 3270 support */
- { "ebcdic", i370_ebcdic, 0 },
-
-#ifdef OBJ_ELF
- { "long", i370_elf_cons, 4 },
- { "word", i370_elf_cons, 4 },
- { "short", i370_elf_cons, 2 },
- { "rdata", i370_elf_rdata, 0 },
- { "rodata", i370_elf_rdata, 0 },
- { "lcomm", i370_elf_lcomm, 0 },
-#endif
-
- /* This pseudo-op is used even when not generating XCOFF output. */
- { "tc", i370_tc, 0 },
-
- /* dump the literal pool */
- { "ltorg", i370_ltorg, 0 },
-
- /* support the hlasm-style USING directive */
- { "using", i370_using, 0 },
- { "drop", i370_drop, 0 },
-
- { NULL, NULL, 0 }
-};
diff --git a/gas/config/tc-i370.h b/gas/config/tc-i370.h
deleted file mode 100644
index f6e6712..0000000
--- a/gas/config/tc-i370.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/* tc-i370.h -- Header file for tc-i370.c.
- Copyright (C) 1994-2018 Free Software Foundation, Inc.
- Written by Ian Lance Taylor, Cygnus Support.
-
- 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 3, or (at your option)
- any later version.
-
- GAS is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- 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, 51 Franklin Street - Fifth Floor, Boston, MA
- 02110-1301, USA. */
-
-#define TC_I370
-
-struct fix;
-
-/* Set the endianness we are using. Default to big endian. */
-#ifndef TARGET_BYTES_BIG_ENDIAN
-#define TARGET_BYTES_BIG_ENDIAN 1
-#endif
-
-/* The target BFD architecture. */
-#define TARGET_ARCH (i370_arch ())
-extern enum bfd_architecture i370_arch (void);
-
-/* Whether or not the target is big endian. */
-extern int target_big_endian;
-
-/* The target BFD format. */
-#define TARGET_FORMAT ("elf32-i370")
-
-/* Permit temporary numeric labels. */
-#define LOCAL_LABELS_FB 1
-
-/* $ is used to refer to the current location. */
-/* #define DOLLAR_DOT */
-
-/* foo-. gets turned into PC relative relocs. */
-#define DIFF_EXPR_OK
-
-/* Values passed to md_apply_fix don't include the symbol value. */
-#define MD_APPLY_SYM_VALUE(FIX) 0
-
-/* We don't need to handle .word strangely. */
-#define WORKING_DOT_WORD
-
-/* Call md_pcrel_from_section, not md_pcrel_from. */
-#define MD_PCREL_FROM_SECTION(FIX, SEC) md_pcrel_from_section (FIX, SEC)
-extern long md_pcrel_from_section (struct fix *, segT);
-
-#define md_operand(x)
-
-#define tc_comment_chars i370_comment_chars
-extern const char *i370_comment_chars;