binutils-gdb/gas/config/tc-bpf.h
David Faust 6db9990640 Change the /nop directive for the BPF port of the assembler to use the encoding expected by the kernel.
* config/tc-bpf.h (md_single_noop_insn): Use 'ja 0' for no-op.
2020-09-15 10:33:49 +01:00

54 lines
1.9 KiB
C

/* tc-bpf.h -- Header file for tc-ebpf.c.
Copyright (C) 2019-2020 Free Software Foundation, Inc.
Contributed by Oracle, Inc.
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_BPF
#define LISTING_HEADER "BPF GAS "
/* The target BFD architecture. */
#define TARGET_ARCH bfd_arch_bpf
#define TARGET_MACH 0 /* The default. */
#define TARGET_FORMAT \
(target_big_endian ? "elf64-bpfbe" : "elf64-bpfle")
/* This is used to set the default value for `target_big_endian'. */
#ifndef TARGET_BYTES_BIG_ENDIAN
#define TARGET_BYTES_BIG_ENDIAN 0
#endif
/* .-foo gets turned into PC relative relocs. */
#define DIFF_EXPR_OK 1
#define GAS_CGEN_PCREL_R_TYPE(R_TYPE) gas_cgen_pcrel_r_type (R_TYPE)
/* Call md_pcrel_from_section(), not md_pcrel_from(). */
#define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section (FIXP, SEC)
/* We don't need to handle .word strangely. */
#define WORKING_DOT_WORD
/* Values passed to md_apply_fix don't include the symbol value. */
#define MD_APPLY_SYM_VALUE(FIX) 0
/* The Linux kernel verifier expects NOPs to be encoded in this way;
a jump to offset 0 means jump to the next instruction. */
#define md_single_noop_insn "ja 0"