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/* Copyright (C) 2016-2022 Free Software Foundation, Inc.
This file 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 file 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 GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#ifndef OBJECT_FORMAT_ELF
#error elf.h included before elfos.h
#endif
#define TEXT_SECTION_ASM_OP "\t.text"
#define BSS_SECTION_ASM_OP "\t.bss"
#define GLOBAL_ASM_OP "\t.globl\t"
#define DATA_SECTION_ASM_OP "\t.data\t"
#define SET_ASM_OP "\t.set\t"
#define LOCAL_LABEL_PREFIX "."
#define USER_LABEL_PREFIX ""
#define ASM_COMMENT_START ";"
#define TARGET_ASM_NAMED_SECTION default_elf_asm_named_section
#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
#undef ASM_DECLARE_FUNCTION_NAME
#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
gcn_hsa_declare_function_name ((FILE), (NAME), (DECL))
/* Unlike GNU as, the LLVM assembler uses log2 alignments. */
#undef ASM_OUTPUT_ALIGNED_COMMON
#define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGNMENT) \
(fprintf ((FILE), "%s", COMMON_ASM_OP), \
assemble_name ((FILE), (NAME)), \
fprintf ((FILE), "," HOST_WIDE_INT_PRINT_UNSIGNED ",%u\n", \
(SIZE) > 0 ? (SIZE) : 1, exact_log2 ((ALIGNMENT) / BITS_PER_UNIT)))
#define ASM_OUTPUT_LABEL(FILE,NAME) \
do { assemble_name (FILE, NAME); fputs (":\n", FILE); } while (0)
#define ASM_OUTPUT_LABELREF(FILE, NAME) \
asm_fprintf (FILE, "%U%s", default_strip_name_encoding (NAME))
extern unsigned int gcn_local_sym_hash (const char *name);
#define ASM_OUTPUT_SYMBOL_REF(FILE, X) gcn_asm_output_symbol_ref (FILE, X)
#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
fprintf (FILE, "\t.word .L%d-.L%d\n", VALUE, REL)
#define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \
fprintf (FILE, "\t.word .L%d\n", VALUE)
#define ASM_OUTPUT_ALIGN(FILE,LOG) \
do { if (LOG!=0) fprintf (FILE, "\t.align\t%d\n", 1<<(LOG)); } while (0)
#define ASM_OUTPUT_ALIGN_WITH_NOP(FILE,LOG) \
do { \
if (LOG!=0) \
fprintf (FILE, "\t.p2alignl\t%d, 0xBF800000" \
" ; Fill value is 's_nop 0'\n", (LOG)); \
} while (0)
#define ASM_APP_ON ""
#define ASM_APP_OFF ""
/* Avoid the default in ../../gcc.c, which adds "-pthread", which is not
supported for gcn. */
#define GOMP_SELF_SPECS ""
#ifdef HAVE_GCN_XNACK_FIJI
#define X_FIJI
#else
#define X_FIJI "!march=*:;march=fiji:;"
#endif
#ifdef HAVE_GCN_XNACK_GFX900
#define X_900
#else
#define X_900 "march=gfx900:;"
#endif
#ifdef HAVE_GCN_XNACK_GFX906
#define X_906
#else
#define X_906 "march=gfx906:;"
#endif
#ifdef HAVE_GCN_XNACK_GFX908
#define X_908
#else
#define X_908 "march=gfx908:;"
#endif
/* These targets can't have SRAM-ECC, even if a broken assembler allows it. */
#define S_FIJI "!march=*:;march=fiji:;"
#define S_900 "march=gfx900:;"
#define S_906 "march=gfx906:;"
#ifdef HAVE_GCN_SRAM_ECC_GFX908
#define S_908
#else
#define S_908 "march=gfx908:;"
#endif
#ifdef HAVE_GCN_ASM_V3_SYNTAX
#define SRAMOPT "!msram-ecc=off:-mattr=+sram-ecc;:-mattr=-sram-ecc"
#endif
#ifdef HAVE_GCN_ASM_V4_SYNTAX
/* In HSACOv4 no attribute setting means the binary supports "any" hardware
configuration. The name of the attribute also changed. */
#define SRAMOPT "msram-ecc=on:-mattr=+sramecc;msram-ecc=off:-mattr=-sramecc"
#endif
#if !defined(SRAMOPT) && !defined(IN_LIBGCC2)
#error "No assembler syntax configured"
#endif
#ifdef HAVE_GCN_ASM_V4_SYNTAX
/* FIJI cards don't seem to support drivers new enough to allow HSACOv4. */
#define HSACO3_SELECT_OPT \
"%{!march=*|march=fiji:--amdhsa-code-object-version=3} "
#else
#define HSACO3_SELECT_OPT
#endif
/* These targets can't have SRAM-ECC, even if a broken assembler allows it. */
#define DRIVER_SELF_SPECS \
"%{march=fiji|march=gfx900|march=gfx906:%{!msram-ecc=*:-msram-ecc=off}}"
/* Use LLVM assembler and linker options. */
#define ASM_SPEC "-triple=amdgcn--amdhsa " \
"%:last_arg(%{march=*:-mcpu=%*}) " \
HSACO3_SELECT_OPT \
"%{" X_FIJI X_900 X_906 X_908 \
"mxnack:-mattr=+xnack;:-mattr=-xnack} " \
"%{" S_FIJI S_900 S_906 S_908 SRAMOPT "} " \
"-filetype=obj"
#define LINK_SPEC "--pie --export-dynamic"
#define LIB_SPEC "-lc"
/* Provides a _start symbol to keep the linker happy. */
#define STARTFILE_SPEC "crt0.o%s"
#define ENDFILE_SPEC ""
#define STANDARD_STARTFILE_PREFIX_2 ""
/* The LLVM assembler rejects multiple -mcpu options, so we must drop
all but the last. */
extern const char *last_arg_spec_function (int argc, const char **argv);
#define EXTRA_SPEC_FUNCTIONS \
{ "last_arg", last_arg_spec_function },
#undef LOCAL_INCLUDE_DIR
/* FIXME: Review debug info settings.
* In particular, EH_FRAME_THROUGH_COLLECT2 is probably the wrong
* thing but stuff fails to build without it.
* (Debug info is not a big deal until we get a debugger.) */
#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
#define DWARF2_DEBUGGING_INFO 1
#define DWARF2_ASM_LINE_DEBUG_INFO 1
#define EH_FRAME_THROUGH_COLLECT2 1
#define DBX_REGISTER_NUMBER(REGNO) gcn_dwarf_register_number (REGNO)
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