mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-03 04:12:10 +08:00
07d6d2b834
Binutils is supposed to use tabs. In my git config I have whitespace = indent-with-non-tab,space-before-tab,trailing-space and I got annoyed enough seeing red in "git diff" output to fix the problems. * doc/header.sed: Trim trailing space when splitting lines. * aix386-core.c, * aout-adobe.c, * aout-arm.c, * aout-cris.c, * aout-ns32k.c, * aout-target.h, * aout-tic30.c, * aoutf1.h, * aoutx.h, * arc-got.h, * arc-plt.def, * arc-plt.h, * archive.c, * archive64.c, * archures.c, * armnetbsd.c, * bfd-in.h, * bfd.c, * bfdio.c, * binary.c, * bout.c, * cache.c, * cisco-core.c, * coff-alpha.c, * coff-apollo.c, * coff-arm.c, * coff-h8300.c, * coff-i386.c, * coff-i860.c, * coff-i960.c, * coff-m68k.c, * coff-m88k.c, * coff-mcore.c, * coff-mips.c, * coff-ppc.c, * coff-rs6000.c, * coff-sh.c, * coff-stgo32.c, * coff-tic4x.c, * coff-tic54x.c, * coff-tic80.c, * coff-we32k.c, * coff-x86_64.c, * coff-z80.c, * coff-z8k.c, * coff64-rs6000.c, * coffcode.h, * coffgen.c, * cofflink.c, * coffswap.h, * compress.c, * corefile.c, * cpu-alpha.c, * cpu-arm.c, * cpu-avr.c, * cpu-bfin.c, * cpu-cr16.c, * cpu-cr16c.c, * cpu-crx.c, * cpu-d10v.c, * cpu-frv.c, * cpu-ft32.c, * cpu-i370.c, * cpu-i960.c, * cpu-ia64-opc.c, * cpu-ip2k.c, * cpu-lm32.c, * cpu-m32r.c, * cpu-mcore.c, * cpu-microblaze.c, * cpu-mips.c, * cpu-moxie.c, * cpu-mt.c, * cpu-nios2.c, * cpu-ns32k.c, * cpu-or1k.c, * cpu-powerpc.c, * cpu-pru.c, * cpu-sh.c, * cpu-spu.c, * cpu-v850.c, * cpu-v850_rh850.c, * cpu-xgate.c, * cpu-z80.c, * dwarf1.c, * dwarf2.c, * ecoff.c, * ecofflink.c, * ecoffswap.h, * elf-bfd.h, * elf-eh-frame.c, * elf-hppa.h, * elf-m10200.c, * elf-m10300.c, * elf-s390-common.c, * elf-strtab.c, * elf-vxworks.c, * elf.c, * elf32-am33lin.c, * elf32-arc.c, * elf32-arm.c, * elf32-avr.c, * elf32-avr.h, * elf32-bfin.c, * elf32-cr16.c, * elf32-cr16c.c, * elf32-cris.c, * elf32-crx.c, * elf32-d10v.c, * elf32-d30v.c, * elf32-dlx.c, * elf32-epiphany.c, * elf32-fr30.c, * elf32-frv.c, * elf32-ft32.c, * elf32-h8300.c, * elf32-hppa.c, * elf32-i386.c, * elf32-i860.c, * elf32-i960.c, * elf32-ip2k.c, * elf32-lm32.c, * elf32-m32c.c, * elf32-m32r.c, * elf32-m68hc11.c, * elf32-m68hc12.c, * elf32-m68hc1x.c, * elf32-m68hc1x.h, * elf32-m68k.c, * elf32-m88k.c, * elf32-mcore.c, * elf32-mep.c, * elf32-metag.c, * elf32-microblaze.c, * elf32-mips.c, * elf32-moxie.c, * elf32-msp430.c, * elf32-mt.c, * elf32-nds32.c, * elf32-nds32.h, * elf32-nios2.c, * elf32-or1k.c, * elf32-pj.c, * elf32-ppc.c, * elf32-ppc.h, * elf32-pru.c, * elf32-rl78.c, * elf32-rx.c, * elf32-s390.c, * elf32-score.c, * elf32-score.h, * elf32-score7.c, * elf32-sh-symbian.c, * elf32-sh.c, * elf32-sh64.c, * elf32-sparc.c, * elf32-spu.c, * elf32-tic6x.c, * elf32-tilegx.c, * elf32-tilegx.h, * elf32-tilepro.c, * elf32-tilepro.h, * elf32-v850.c, * elf32-vax.c, * elf32-wasm32.c, * elf32-xc16x.c, * elf32-xgate.c, * elf32-xgate.h, * elf32-xstormy16.c, * elf32-xtensa.c, * elf64-alpha.c, * elf64-hppa.c, * elf64-ia64-vms.c, * elf64-mips.c, * elf64-mmix.c, * elf64-ppc.c, * elf64-s390.c, * elf64-sh64.c, * elf64-sparc.c, * elf64-tilegx.c, * elf64-tilegx.h, * elf64-x86-64.c, * elfcore.h, * elflink.c, * elfn32-mips.c, * elfnn-aarch64.c, * elfnn-ia64.c, * elfnn-riscv.c, * elfxx-aarch64.c, * elfxx-aarch64.h, * elfxx-ia64.c, * elfxx-ia64.h, * elfxx-mips.c, * elfxx-riscv.c, * elfxx-sparc.c, * elfxx-tilegx.c, * elfxx-x86.c, * elfxx-x86.h, * freebsd.h, * hash.c, * host-aout.c, * hp300hpux.c, * hppabsd-core.c, * hpux-core.c, * i386aout.c, * i386linux.c, * i386lynx.c, * i386mach3.c, * i386msdos.c, * i386netbsd.c, * ieee.c, * ihex.c, * irix-core.c, * libaout.h, * libbfd-in.h, * libbfd.c, * libcoff-in.h, * libnlm.h, * libpei.h, * libxcoff.h, * linker.c, * lynx-core.c, * m68k4knetbsd.c, * m68klinux.c, * m68knetbsd.c, * m88kmach3.c, * mach-o-aarch64.c, * mach-o-arm.c, * mach-o-i386.c, * mach-o-target.c, * mach-o-x86-64.c, * mach-o.c, * mach-o.h, * merge.c, * mipsbsd.c, * mmo.c, * netbsd.h, * netbsd-core.c, * newsos3.c, * nlm-target.h, * nlm32-ppc.c, * nlm32-sparc.c, * nlmcode.h, * ns32k.h, * ns32knetbsd.c, * oasys.c, * opncls.c, * pc532-mach.c, * pdp11.c, * pe-arm.c, * pe-i386.c, * pe-mcore.c, * pe-mips.c, * pe-x86_64.c, * peXXigen.c, * pef.c, * pef.h, * pei-arm.c, * pei-i386.c, * pei-mcore.c, * pei-x86_64.c, * peicode.h, * plugin.c, * ppcboot.c, * ptrace-core.c, * reloc.c, * riscix.c, * rs6000-core.c, * section.c, * som.c, * som.h, * sparclinux.c, * sparcnetbsd.c, * srec.c, * stabs.c, * sunos.c, * syms.c, * targets.c, * tekhex.c, * trad-core.c, * vax1knetbsd.c, * vaxnetbsd.c, * verilog.c, * versados.c, * vms-alpha.c, * vms-lib.c, * vms-misc.c, * wasm-module.c, * wasm-module.h, * xcofflink.c, * xsym.c, * xsym.h: Whitespace fixes. * bfd-in2.h, * libbfd.h, * libcoff.h: Regenerate.
293 lines
9.6 KiB
C
293 lines
9.6 KiB
C
/* BFD backend for CRIS a.out binaries.
|
|
Copyright (C) 2000-2017 Free Software Foundation, Inc.
|
|
Contributed by Axis Communications AB.
|
|
Written by Hans-Peter Nilsson.
|
|
|
|
This file is part of BFD, the Binary File Descriptor library.
|
|
|
|
This program 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 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program 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 this program; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
|
|
MA 02110-1301, USA. */
|
|
|
|
/* See info in the file PORTING for documentation of these macros and
|
|
functions. Beware; some of the information there is outdated. */
|
|
|
|
#define N_HEADER_IN_TEXT(x) 0
|
|
#define N_TXTOFF(x) 32
|
|
#define ENTRY_CAN_BE_ZERO
|
|
#define TEXT_START_ADDR 0
|
|
|
|
/* Without reading symbols to get the text start symbol, there is no way
|
|
to know where the text segment starts in an a.out file. Defaulting to
|
|
anything as constant as TEXT_START_ADDR is bad. But we can guess from
|
|
the entry point, which is usually within the first 64k of the text
|
|
segment. We also assume here that the text segment is 64k-aligned.
|
|
FIXME: It is also wrong to assume that data and bss follow immediately
|
|
after text, but with those, we don't have any choice besides reading
|
|
symbol info, and luckily there's no pressing need for correctness for
|
|
those vma:s at this time. */
|
|
#define N_TXTADDR(x) ((x)->a_entry & ~(bfd_vma) 0xffff)
|
|
|
|
/* If you change this to 4, you can not link to an address N*4+2. */
|
|
#define SEGMENT_SIZE 2
|
|
|
|
/* For some reason, if the a.out file has Z_MAGIC, then
|
|
adata(abfd).exec_bytes_size is not used, but rather
|
|
adata(abfd).zmagic_disk_block_size, even though the exec_header is
|
|
*not* included in the text segment. A simple workaround is to
|
|
#define ZMAGIC_DISK_BLOCK_SIZE, which is used if defined; otherwise
|
|
TARGET_PAGE_SIZE is used. */
|
|
#define ZMAGIC_DISK_BLOCK_SIZE N_TXTOFF (0)
|
|
|
|
/* It seems odd at first to set a page-size this low, but gives greater
|
|
freedom in where things can be linked. The drawback is that you have
|
|
to set alignment and padding in linker scripts. */
|
|
#define TARGET_PAGE_SIZE SEGMENT_SIZE
|
|
#define TARGETNAME "a.out-cris"
|
|
|
|
/* The definition here seems not used; just provided as a convention. */
|
|
#define DEFAULT_ARCH bfd_arch_cris
|
|
|
|
/* Do not "beautify" the CONCAT* macro args. Traditional C will not
|
|
remove whitespace added here, and thus will fail to concatenate
|
|
the tokens. */
|
|
#define MY(OP) CONCAT2 (cris_aout_,OP)
|
|
#define NAME(x, y) CONCAT3 (cris_aout,_32_,y)
|
|
|
|
#include "sysdep.h"
|
|
#include "bfd.h"
|
|
|
|
/* Version 1 of the header. */
|
|
#define MY_exec_hdr_flags 1
|
|
|
|
#define MY_write_object_contents MY (write_object_contents)
|
|
static bfd_boolean MY (write_object_contents) (bfd *);
|
|
|
|
/* Forward this, so we can use a pointer to it in PARAMS. */
|
|
struct reloc_ext_external;
|
|
|
|
#define MY_swap_ext_reloc_out MY (swap_ext_reloc_out)
|
|
static void MY (swap_ext_reloc_out) (bfd *, arelent *, struct reloc_ext_external *);
|
|
|
|
#define MY_swap_ext_reloc_in MY (swap_ext_reloc_in)
|
|
static void MY (swap_ext_reloc_in) (bfd *, struct reloc_ext_external *,
|
|
arelent *, asymbol **, bfd_size_type);
|
|
|
|
#define MY_set_sizes MY (set_sizes)
|
|
static bfd_boolean MY (set_sizes) (bfd *);
|
|
|
|
/* To set back reloc_size to ext, we make MY (set_sizes) be called
|
|
through this construct. Note that MY_set_arch_mach is only called
|
|
through SET_ARCH_MACH. The default bfd_default_set_arch_mach will
|
|
not call set_sizes. */
|
|
|
|
#define MY_set_arch_mach NAME (aout, set_arch_mach)
|
|
#define SET_ARCH_MACH(BFD, EXECP) \
|
|
MY_set_arch_mach (BFD, DEFAULT_ARCH, N_MACHTYPE (EXECP))
|
|
|
|
/* These macros describe the binary layout of the reloc information we
|
|
use in a file. */
|
|
#define RELOC_EXT_BITS_EXTERN_LITTLE 0x80
|
|
#define RELOC_EXT_BITS_TYPE_LITTLE 3
|
|
#define RELOC_EXT_BITS_TYPE_SH_LITTLE 0
|
|
|
|
#ifndef MY_get_section_contents
|
|
#define MY_get_section_contents aout_32_get_section_contents
|
|
#endif
|
|
|
|
#define MACHTYPE_OK(mtype) ((mtype) == M_CRIS)
|
|
|
|
/* Include generic functions (some are overridden above). */
|
|
#include "aout32.c"
|
|
#include "aout-target.h"
|
|
|
|
/* We need our own version to set header flags. */
|
|
|
|
static bfd_boolean
|
|
MY (write_object_contents) (bfd *abfd)
|
|
{
|
|
struct external_exec exec_bytes;
|
|
struct internal_exec *execp = exec_hdr (abfd);
|
|
|
|
/* We set the reloc type to RELOC_EXT_SIZE, although setting it at all
|
|
seems unnecessary when inspecting as and ld behavior (not an
|
|
exhaustive inspection). The default write_object_contents
|
|
definition sets RELOC_EXT_SIZE, so we follow suite and set it too. */
|
|
obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE;
|
|
|
|
/* Setting N_SET_MACHTYPE and using N_SET_FLAGS is not performed by
|
|
the default definition. */
|
|
if (bfd_get_arch (abfd) == bfd_arch_cris)
|
|
N_SET_MACHTYPE (execp, M_CRIS);
|
|
|
|
N_SET_FLAGS (execp, aout_backend_info (abfd)->exec_hdr_flags);
|
|
|
|
WRITE_HEADERS (abfd, execp);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* We need our own for these reasons:
|
|
- Assert that a normal 8, 16 or 32 reloc is output.
|
|
- Fix what seems to be a weak-bug (perhaps there for valid reasons). */
|
|
|
|
static void
|
|
MY (swap_ext_reloc_out) (bfd *abfd,
|
|
arelent *g,
|
|
struct reloc_ext_external *natptr)
|
|
{
|
|
int r_index;
|
|
int r_extern;
|
|
unsigned int r_type;
|
|
bfd_vma r_addend;
|
|
asymbol *sym = *(g->sym_ptr_ptr);
|
|
asection *output_section = sym->section->output_section;
|
|
|
|
PUT_WORD (abfd, g->address, natptr->r_address);
|
|
|
|
r_type = (unsigned int) g->howto->type;
|
|
|
|
r_addend = g->addend;
|
|
if ((sym->flags & BSF_SECTION_SYM) != 0)
|
|
r_addend += (*(g->sym_ptr_ptr))->section->output_section->vma;
|
|
|
|
/* If this relocation is relative to a symbol then set the
|
|
r_index to the symbols index, and the r_extern bit.
|
|
|
|
Absolute symbols can come in in two ways, either as an offset
|
|
from the abs section, or as a symbol which has an abs value.
|
|
check for that here. */
|
|
|
|
if (bfd_is_abs_section (bfd_get_section (sym)))
|
|
{
|
|
r_extern = 0;
|
|
r_index = N_ABS;
|
|
}
|
|
else if ((sym->flags & BSF_SECTION_SYM) == 0)
|
|
{
|
|
if (bfd_is_und_section (bfd_get_section (sym))
|
|
/* Remember to check for weak symbols; they count as global. */
|
|
|| (sym->flags & (BSF_GLOBAL | BSF_WEAK)) != 0)
|
|
r_extern = 1;
|
|
else
|
|
r_extern = 0;
|
|
r_index = (*(g->sym_ptr_ptr))->KEEPIT;
|
|
}
|
|
else
|
|
{
|
|
/* Just an ordinary section. */
|
|
r_extern = 0;
|
|
r_index = output_section->target_index;
|
|
}
|
|
|
|
/* The relocation type is the same as the canonical ones, but only
|
|
the first 3 are used: RELOC_8, RELOC_16, RELOC_32.
|
|
We may change this later, but assert this for the moment. */
|
|
if (r_type > 2)
|
|
{
|
|
/* xgettext:c-format */
|
|
_bfd_error_handler (_("%B: Invalid relocation type exported: %d"),
|
|
abfd, r_type);
|
|
|
|
bfd_set_error (bfd_error_wrong_format);
|
|
}
|
|
|
|
/* Now the fun stuff. */
|
|
natptr->r_index[2] = r_index >> 16;
|
|
natptr->r_index[1] = r_index >> 8;
|
|
natptr->r_index[0] = r_index;
|
|
natptr->r_type[0] =
|
|
(r_extern ? RELOC_EXT_BITS_EXTERN_LITTLE : 0)
|
|
| (r_type << RELOC_EXT_BITS_TYPE_SH_LITTLE);
|
|
|
|
PUT_WORD (abfd, r_addend, natptr->r_addend);
|
|
}
|
|
|
|
/* We need our own to assert that a normal 8, 16 or 32 reloc is input. */
|
|
|
|
static void
|
|
MY (swap_ext_reloc_in) (bfd *abfd,
|
|
struct reloc_ext_external *bytes,
|
|
arelent *cache_ptr,
|
|
asymbol **symbols,
|
|
bfd_size_type symcount)
|
|
{
|
|
unsigned int r_index;
|
|
int r_extern;
|
|
unsigned int r_type;
|
|
struct aoutdata *su = &(abfd->tdata.aout_data->a);
|
|
|
|
cache_ptr->address = (GET_SWORD (abfd, bytes->r_address));
|
|
|
|
/* Now the fun stuff. */
|
|
r_index = (bytes->r_index[2] << 16)
|
|
| (bytes->r_index[1] << 8)
|
|
| bytes->r_index[0];
|
|
r_extern = (0 != (bytes->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE));
|
|
r_type = ((bytes->r_type[0]) >> RELOC_EXT_BITS_TYPE_SH_LITTLE)
|
|
& RELOC_EXT_BITS_TYPE_LITTLE;
|
|
|
|
if (r_type > 2)
|
|
{
|
|
/* xgettext:c-format */
|
|
_bfd_error_handler (_("%B: Invalid relocation type imported: %d"),
|
|
abfd, r_type);
|
|
|
|
bfd_set_error (bfd_error_wrong_format);
|
|
}
|
|
|
|
cache_ptr->howto = howto_table_ext + r_type;
|
|
|
|
if (r_extern && r_index > symcount)
|
|
{
|
|
_bfd_error_handler
|
|
/* xgettext:c-format */
|
|
(_("%B: Bad relocation record imported: %d"), abfd, r_index);
|
|
|
|
bfd_set_error (bfd_error_wrong_format);
|
|
|
|
/* We continue, so we can catch further errors. */
|
|
r_extern = 0;
|
|
r_index = N_ABS;
|
|
}
|
|
|
|
/* Magically uses r_extern, symbols etc. Ugly, but it's what's in the
|
|
default. */
|
|
MOVE_ADDRESS (GET_SWORD (abfd, bytes->r_addend));
|
|
}
|
|
|
|
/* We use the same as the default, except that we also set
|
|
"obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE;", to avoid changing
|
|
NAME (aout, set_arch_mach) in aoutx. */
|
|
|
|
static bfd_boolean
|
|
MY (set_sizes) (bfd *abfd)
|
|
{
|
|
/* Just as the default in aout-target.h (with some #ifdefs folded)... */
|
|
|
|
adata (abfd).page_size = TARGET_PAGE_SIZE;
|
|
adata (abfd).segment_size = SEGMENT_SIZE;
|
|
adata (abfd).zmagic_disk_block_size = ZMAGIC_DISK_BLOCK_SIZE;
|
|
adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE;
|
|
|
|
/* ... except for that we have the extended reloc. The alternative
|
|
would be to add a check on bfd_arch_cris in NAME (aout,
|
|
set_arch_mach) in aoutx.h, but I don't want to do that since
|
|
target-specific things should not be added there. */
|
|
|
|
obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE;
|
|
|
|
return TRUE;
|
|
}
|