mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2025-03-07 13:39:43 +08:00
fe1f847d9a
Since the policies of GNU and llvm toolchain are different for now,
current binutils mainline cannot accept any draft extensions, including
rvv, zfh, .... The Clang/LLVM allows these draft stuff on mainline,
but the GNU ld might be used with them, so this causes the link time
problems.
The patch allows ld to link the objects with unknown prefixed extensions,
which are probably generated by LLVM or customized toolchains.
bfd/
* elfxx-riscv.h (check_unknown_prefixed_ext): New bool.
* elfxx-riscv.c (riscv_parse_prefixed_ext): Do not check the
prefixed extension name if check_unknown_prefixed_ext is false.
* elfnn-riscv.c (riscv_merge_arch_attr_info): Set
check_unknown_prefixed_ext to false for linker.
gas/
* config/tc-riscv.c (riscv_set_arch): Set
check_unknown_prefixed_ext to true for assembler.
104 lines
2.6 KiB
C
104 lines
2.6 KiB
C
/* RISC-V ELF specific backend routines.
|
|
Copyright (C) 2011-2021 Free Software Foundation, Inc.
|
|
|
|
Contributed by Andrew Waterman (andrew@sifive.com).
|
|
Based on MIPS target.
|
|
|
|
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; see the file COPYING3. If not,
|
|
see <http://www.gnu.org/licenses/>. */
|
|
|
|
#include "elf/common.h"
|
|
#include "elf/internal.h"
|
|
#include "opcode/riscv.h"
|
|
|
|
#define RISCV_UNKNOWN_VERSION -1
|
|
|
|
extern reloc_howto_type *
|
|
riscv_reloc_name_lookup (bfd *, const char *);
|
|
|
|
extern reloc_howto_type *
|
|
riscv_reloc_type_lookup (bfd *, bfd_reloc_code_real_type);
|
|
|
|
extern reloc_howto_type *
|
|
riscv_elf_rtype_to_howto (bfd *, unsigned int r_type);
|
|
|
|
/* The information of architecture attribute. */
|
|
struct riscv_subset_t
|
|
{
|
|
const char *name;
|
|
int major_version;
|
|
int minor_version;
|
|
struct riscv_subset_t *next;
|
|
};
|
|
|
|
typedef struct riscv_subset_t riscv_subset_t;
|
|
|
|
typedef struct
|
|
{
|
|
riscv_subset_t *head;
|
|
riscv_subset_t *tail;
|
|
} riscv_subset_list_t;
|
|
|
|
extern void
|
|
riscv_release_subset_list (riscv_subset_list_t *);
|
|
|
|
extern void
|
|
riscv_add_subset (riscv_subset_list_t *,
|
|
const char *,
|
|
int, int);
|
|
|
|
extern bool
|
|
riscv_lookup_subset (const riscv_subset_list_t *,
|
|
const char *,
|
|
riscv_subset_t **);
|
|
|
|
typedef struct
|
|
{
|
|
riscv_subset_list_t *subset_list;
|
|
void (*error_handler) (const char *,
|
|
...) ATTRIBUTE_PRINTF_1;
|
|
unsigned *xlen;
|
|
void (*get_default_version) (const char *,
|
|
int *,
|
|
int *);
|
|
bool check_unknown_prefixed_ext;
|
|
} riscv_parse_subset_t;
|
|
|
|
extern bool
|
|
riscv_parse_subset (riscv_parse_subset_t *,
|
|
const char *);
|
|
|
|
extern const char *
|
|
riscv_supported_std_ext (void);
|
|
|
|
extern void
|
|
riscv_release_subset_list (riscv_subset_list_t *);
|
|
|
|
extern char *
|
|
riscv_arch_str (unsigned, const riscv_subset_list_t *);
|
|
|
|
extern size_t
|
|
riscv_estimate_digit (unsigned);
|
|
|
|
extern int
|
|
riscv_compare_subsets (const char *, const char *);
|
|
|
|
extern bool
|
|
bfd_elf32_riscv_restart_relax_sections (struct bfd_link_info *);
|
|
|
|
extern bool
|
|
bfd_elf64_riscv_restart_relax_sections (struct bfd_link_info *);
|