1 /* tc-bpf.h -- Header file for tc-ebpf.c.
2    Copyright (C) 2019-2021 Free Software Foundation, Inc.
3    Contributed by Oracle, Inc.
4 
5    This file is part of GAS, the GNU Assembler.
6 
7    GAS is free software; you can redistribute it and/or modify
8    it under the terms of the GNU General Public License as published by
9    the Free Software Foundation; either version 3, or (at your option)
10    any later version.
11 
12    GAS is distributed in the hope that it will be useful,
13    but WITHOUT ANY WARRANTY; without even the implied warranty of
14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15    GNU General Public License for more details.
16 
17    You should have received a copy of the GNU General Public License
18    along with GAS; see the file COPYING.  If not, write to the Free
19    Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
20    02110-1301, USA.  */
21 
22 #define TC_BPF
23 
24 #define LISTING_HEADER "BPF GAS "
25 
26 /* The target BFD architecture.  */
27 #define TARGET_ARCH bfd_arch_bpf
28 #define TARGET_MACH 0 /* The default.  */
29 
30 #define TARGET_FORMAT                                                   \
31   (target_big_endian ? "elf64-bpfbe" : "elf64-bpfle")
32 
33 /* This is used to set the default value for `target_big_endian'.  */
34 #ifndef TARGET_BYTES_BIG_ENDIAN
35 #define TARGET_BYTES_BIG_ENDIAN 0
36 #endif
37 
38 /* .-foo gets turned into PC relative relocs.  */
39 #define DIFF_EXPR_OK    1
40 #define GAS_CGEN_PCREL_R_TYPE(R_TYPE) gas_cgen_pcrel_r_type (R_TYPE)
41 
42 /* Call md_pcrel_from_section(), not md_pcrel_from().  */
43 #define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section (FIXP, SEC)
44 
45 /* We don't need to handle .word strangely.  */
46 #define WORKING_DOT_WORD
47 
48 /* Values passed to md_apply_fix don't include the symbol value.  */
49 #define MD_APPLY_SYM_VALUE(FIX) 0
50 
51 /* The Linux kernel verifier expects NOPs to be encoded in this way;
52    a jump to offset 0 means jump to the next instruction.  */
53 #define md_single_noop_insn "ja 0"
54