1/* Definitions for ELF assembler support. 2 Copyright (C) 1999-2022 Free Software Foundation, Inc. 3 4This file is part of GCC. 5 6GCC is free software; you can redistribute it and/or modify 7it under the terms of the GNU General Public License as published by 8the Free Software Foundation; either version 3, or (at your option) 9any later version. 10 11GCC is distributed in the hope that it will be useful, 12but WITHOUT ANY WARRANTY; without even the implied warranty of 13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14GNU General Public License for more details. 15 16You should have received a copy of the GNU General Public License 17along with GCC; see the file COPYING3. If not see 18<http://www.gnu.org/licenses/>. */ 19 20/* So we can conditionalize small amounts of code in pa.cc or pa.md. */ 21#define OBJ_ELF 22 23#define ENDFILE_SPEC "crtend.o%s" 24 25#define STARTFILE_SPEC "%{!shared: \ 26 %{!symbolic: \ 27 %{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}}}\ 28 crtbegin.o%s" 29 30#define TEXT_SECTION_ASM_OP "\t.text" 31#define DATA_SECTION_ASM_OP "\t.data" 32#define BSS_SECTION_ASM_OP "\t.section\t.bss" 33 34#define TARGET_ASM_FILE_START pa_elf_file_start 35 36#undef ASM_DECLARE_FUNCTION_NAME 37#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \ 38do { \ 39 if (TREE_PUBLIC (DECL)) \ 40 { \ 41 fputs ("\t.EXPORT ", FILE); \ 42 assemble_name (FILE, NAME); \ 43 fputs (",ENTRY\n", FILE); \ 44 } \ 45 } while (0) 46 47/* This is how to output a command to make the user-level label 48 named NAME defined for reference from other files. We use 49 assemble_name_raw instead of assemble_name since a symbol in 50 a .IMPORT directive that isn't otherwise referenced is not 51 placed in the symbol table of the assembled object. 52 53 Failure to import a function reference can cause the HP linker 54 to segmentation fault! 55 56 Note that the SOM based tools need the symbol imported as a 57 CODE symbol, while the ELF based tools require the symbol to 58 be imported as an ENTRY symbol. */ 59 60#define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME) \ 61 pa_hpux_asm_output_external ((FILE), (DECL), (NAME)) 62#define ASM_OUTPUT_EXTERNAL_REAL(FILE, DECL, NAME) \ 63 do { fputs ("\t.IMPORT ", FILE); \ 64 assemble_name_raw (FILE, NAME); \ 65 if (FUNCTION_NAME_P (NAME)) \ 66 fputs (",ENTRY\n", FILE); \ 67 else \ 68 fputs (",DATA\n", FILE); \ 69 } while (0) 70 71/* The bogus HP assembler requires ALL external references to be 72 "imported", even library calls. They look a bit different, so 73 here's this macro. 74 75 Also note not all libcall names are passed to 76 targetm.encode_section_info (__main for example). To make sure all 77 libcall names have section info recorded in them, we do it here. */ 78 79#undef ASM_OUTPUT_EXTERNAL_LIBCALL 80#define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, RTL) \ 81 do { fputs ("\t.IMPORT ", FILE); \ 82 if (!function_label_operand (RTL, VOIDmode)) \ 83 pa_encode_label (RTL); \ 84 assemble_name (FILE, XSTR ((RTL), 0)); \ 85 fputs (",ENTRY\n", FILE); \ 86 } while (0) 87 88/* Biggest alignment supported by the object file format of this 89 machine. Use this macro to limit the alignment which can be 90 specified using the `__attribute__ ((aligned (N)))' construct. If 91 not defined, the default value is `BIGGEST_ALIGNMENT'. */ 92#define MAX_OFILE_ALIGNMENT (32768 * 8) 93