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Add minimal support for WebAssembly backend to the BFD library. 

include * elf/wasm32.h: New file to support wasm32 architecture.

bfd * cpu-wasm32.c: New file to support wasm32 architecture.
    * elf32-wasm32.c: New file to support wasm32 architecture.
    * Makefile.am: Add wasm32 architecture.
    * archures.c: Likewise.
    * config.bfd: Likewise.
    * configure.ac: Likewise.
    * targets.c: Likewise.
This commit is contained in:
Pip Cet 2017-03-27 11:39:50 +01:00 committed by Nick Clifton
parent c0c31e91ad
commit 8fb740dd30
13 changed files with 148 additions and 0 deletions
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4
bfd/Makefile.am
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@ -169,6 +169,7 @@ ALL_MACHINES = \
cpu-vax.lo \
cpu-visium.lo \
cpu-w65.lo \
cpu-wasm32.lo \
cpu-we32k.lo \
cpu-xc16x.lo \
cpu-xgate.lo \
@ -257,6 +258,7 @@ ALL_MACHINES_CFILES = \
cpu-v850_rh850.c \
cpu-vax.c \
cpu-visium.c \
cpu-wasm32.c \
cpu-w65.c \
cpu-we32k.c \
cpu-xc16x.c \
@ -383,6 +385,7 @@ BFD32_BACKENDS = \
elf32-v850.lo \
elf32-vax.lo \
elf32-visium.lo \
elf32-wasm32.lo \
elf32-xc16x.lo \
elf32-xgate.lo \
elf32-xstormy16.lo \
@ -576,6 +579,7 @@ BFD32_BACKENDS_CFILES = \
elf32-v850.c \
elf32-vax.c \
elf32-visium.c \
elf32-wasm32.c \
elf32-xc16x.c \
elf32-xgate.c \
elf32-xstormy16.c \

6
bfd/Makefile.in
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@ -502,6 +502,7 @@ ALL_MACHINES = \
cpu-vax.lo \
cpu-visium.lo \
cpu-w65.lo \
cpu-wasm32.lo \
cpu-we32k.lo \
cpu-xc16x.lo \
cpu-xgate.lo \
@ -590,6 +591,7 @@ ALL_MACHINES_CFILES = \
cpu-v850_rh850.c \
cpu-vax.c \
cpu-visium.c \
cpu-wasm32.c \
cpu-w65.c \
cpu-we32k.c \
cpu-xc16x.c \
@ -717,6 +719,7 @@ BFD32_BACKENDS = \
elf32-v850.lo \
elf32-vax.lo \
elf32-visium.lo \
elf32-wasm32.lo \
elf32-xc16x.lo \
elf32-xgate.lo \
elf32-xstormy16.lo \
@ -910,6 +913,7 @@ BFD32_BACKENDS_CFILES = \
elf32-v850.c \
elf32-vax.c \
elf32-visium.c \
elf32-wasm32.c \
elf32-xc16x.c \
elf32-xgate.c \
elf32-xstormy16.c \
@ -1446,6 +1450,7 @@ distclean-compile:
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-vax.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-visium.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-w65.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-wasm32.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-we32k.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-xc16x.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-xgate.Plo@am__quote@
@ -1534,6 +1539,7 @@ distclean-compile:
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-v850.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-vax.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-visium.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-wasm32.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-xc16x.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-xgate.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-xstormy16.Plo@am__quote@

4
bfd/archures.c
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@ -528,6 +528,8 @@ DESCRIPTION
.#define bfd_mach_nios2r2 2
. bfd_arch_visium, {* Visium *}
.#define bfd_mach_visium 1
. bfd_arch_wasm32, {* WebAssembly *}
.#define bfd_mach_wasm32 1
. bfd_arch_pru, {* PRU *}
.#define bfd_mach_pru 0
. bfd_arch_last
@ -654,6 +656,7 @@ extern const bfd_arch_info_type bfd_v850_arch;
extern const bfd_arch_info_type bfd_v850_rh850_arch;
extern const bfd_arch_info_type bfd_vax_arch;
extern const bfd_arch_info_type bfd_visium_arch;
extern const bfd_arch_info_type bfd_wasm32_arch;
extern const bfd_arch_info_type bfd_w65_arch;
extern const bfd_arch_info_type bfd_we32k_arch;
extern const bfd_arch_info_type bfd_xstormy16_arch;
@ -746,6 +749,7 @@ static const bfd_arch_info_type * const bfd_archures_list[] =
&bfd_vax_arch,
&bfd_visium_arch,
&bfd_w65_arch,
&bfd_wasm32_arch,
&bfd_we32k_arch,
&bfd_xstormy16_arch,
&bfd_xtensa_arch,

2
bfd/bfd-in2.h
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@ -2372,6 +2372,8 @@ enum bfd_architecture
#define bfd_mach_nios2r2 2
bfd_arch_visium, /* Visium */
#define bfd_mach_visium 1
bfd_arch_wasm32, /* WebAssembly */
#define bfd_mach_wasm32 1
bfd_arch_pru, /* PRU */
#define bfd_mach_pru 0
bfd_arch_last

5
bfd/config.bfd
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@ -197,6 +197,7 @@ tilegx*) targ_archs=bfd_tilegx_arch ;;
tilepro*) targ_archs=bfd_tilepro_arch ;;
v850*) targ_archs="bfd_v850_arch bfd_v850_rh850_arch" ;;
visium*) targ_archs=bfd_visium_arch ;;
wasm32) targ_archs=bfd_wasm32_arch ;;
x86_64*) targ_archs=bfd_i386_arch ;;
xtensa*) targ_archs=bfd_xtensa_arch ;;
xgate) targ_archs=bfd_xgate_arch ;;
@ -1793,6 +1794,10 @@ case "${targ}" in
targ_defvec=visium_elf32_vec
;;
wasm32-*-*)
targ_defvec=wasm32_elf32_vec
;;
we32k-*-*)
targ_defvec=we32k_coff_vec
;;

1
bfd/configure vendored
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@ -14569,6 +14569,7 @@ do
ft32_elf32_vec) tb="$tb elf32-ft32.lo elf32.lo $elf" ;;
visium_elf32_vec) tb="$tb elf32-visium.lo elf32.lo $elf" ;;
w65_coff_vec) tb="$tb coff-w65.lo reloc16.lo $coffgen" ;;
wasm32_elf32_vec) tb="$tb elf32-wasm32.lo elf32.lo $elf" ;;
we32k_coff_vec) tb="$tb coff-we32k.lo $coffgen" ;;
x86_64_coff_vec) tb="$tb coff-x86_64.lo $coff"; target_size=64 ;;
x86_64_elf32_vec) tb="$tb elf64-x86-64.lo elf-ifunc.lo elf-nacl.lo elf64.lo elf32.lo $elf"; target_size=64 ;;

1
bfd/configure.ac
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@ -700,6 +700,7 @@ do
ft32_elf32_vec) tb="$tb elf32-ft32.lo elf32.lo $elf" ;;
visium_elf32_vec) tb="$tb elf32-visium.lo elf32.lo $elf" ;;
w65_coff_vec) tb="$tb coff-w65.lo reloc16.lo $coffgen" ;;
wasm32_elf32_vec) tb="$tb elf32-wasm32.lo elf32.lo $elf" ;;
we32k_coff_vec) tb="$tb coff-we32k.lo $coffgen" ;;
x86_64_coff_vec) tb="$tb coff-x86_64.lo $coff"; target_size=64 ;;
x86_64_elf32_vec) tb="$tb elf64-x86-64.lo elf-ifunc.lo elf-nacl.lo elf64.lo elf32.lo $elf"; target_size=64 ;;

36
bfd/cpu-wasm32.c Normal file
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@ -0,0 +1,36 @@
/* BFD support for the WebAssembly target
Copyright (C) 2017 Free Software Foundation, Inc.
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. */
#include "sysdep.h"
#include "bfd.h"
#include "libbfd.h"
#include "libiberty.h"
#define N(number, print, default, next) \
{ 32, 32, 8, bfd_arch_wasm32, number, "wasm32", "wasm32", 4, default, bfd_default_compatible, \
bfd_default_scan, bfd_arch_default_fill, next }
static const bfd_arch_info_type arch_info_struct[] =
{
N (bfd_mach_wasm32, "wasm32", TRUE, NULL)
};
const bfd_arch_info_type bfd_wasm32_arch =
N (bfd_mach_wasm32, "wasm32", TRUE, & arch_info_struct[0]);

52
bfd/elf32-wasm32.c Normal file
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@ -0,0 +1,52 @@
/* 32-bit ELF for the WebAssembly target
Copyright (C) 2017 Free Software Foundation, Inc.
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. */
#include "sysdep.h"
#include "bfd.h"
#include "libbfd.h"
#include "elf-bfd.h"
#include "bfd_stdint.h"
#include "elf/wasm32.h"
#define ELF_ARCH bfd_arch_wasm32
#define ELF_TARGET_ID EM_WEBASSEMBLY
#define ELF_MACHINE_CODE EM_WEBASSEMBLY
/* FIXME we don't have paged executables, see:
https://github.com/pipcet/binutils-gdb/issues/4 */
#define ELF_MAXPAGESIZE 4096
#define TARGET_LITTLE_SYM wasm32_elf32_vec
#define TARGET_LITTLE_NAME "elf32-wasm32"
#define elf_backend_can_gc_sections 1
#define elf_backend_rela_normal 1
/* For testing. */
#define elf_backend_want_dynrelro 1
#define bfd_elf32_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
#define bfd_elf32_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
#define ELF_DYNAMIC_INTERPRETER "/sbin/elf-dynamic-interpreter.so"
#define elf_backend_want_got_plt 1
#define elf_backend_plt_readonly 1
#define elf_backend_got_header_size 0
#include "elf32-target.h"

2
bfd/po/SRC-POTFILES.in
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@ -141,6 +141,7 @@ cpu-v850_rh850.c
cpu-vax.c
cpu-visium.c
cpu-w65.c
cpu-wasm32.c
cpu-we32k.c
cpu-xc16x.c
cpu-xgate.c
@ -231,6 +232,7 @@ elf32-tilepro.c
elf32-v850.c
elf32-vax.c
elf32-visium.c
elf32-wasm32.c
elf32-xc16x.c
elf32-xgate.c
elf32-xstormy16.c

3
bfd/targets.c
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@ -893,6 +893,7 @@ extern const bfd_target vax_aout_nbsd_vec;
extern const bfd_target vax_elf32_vec;
extern const bfd_target visium_elf32_vec;
extern const bfd_target w65_coff_vec;
extern const bfd_target wasm32_elf32_vec;
extern const bfd_target we32k_coff_vec;
extern const bfd_target x86_64_coff_vec;
extern const bfd_target x86_64_elf32_vec;
@ -1421,6 +1422,8 @@ static const bfd_target * const _bfd_target_vector[] =
&w65_coff_vec,
&wasm32_elf32_vec,
&we32k_coff_vec,
#ifdef BFD64

4
include/ChangeLog
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@ -1,3 +1,7 @@
2017-03-27 Pip Cet <pipcet@gmail.com>
* elf/wasm32.h: New file to support wasm32 architecture.
2017-03-27 Rinat Zelig <rinat@mellanox.com>
* opcode/arc.h (insn_class_t): Add ULTRAIP and MISC class.

28
include/elf/wasm32.h Normal file
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@ -0,0 +1,28 @@
/* ELF support for BFD for the WebAssembly target
Copyright (C) 2017 Free Software Foundation, Inc.
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. */
#ifndef _ELF_WASM32_H
#define _ELF_WASM32_H
#include "elf/reloc-macros.h"
/* Relocation types. */
START_RELOC_NUMBERS (elf_wasm32_reloc_type)
END_RELOC_NUMBERS (R_WASM32_max = 1)
#endif /* _ELF_WASM32_H */