Add support for the AMDGCN architecture to BFD.
This is the bare minimum to get
$ ./configure --target=amdgcn-hsa-amdhsa --disable-gas
$ make all-binutils
working later in this series.
The specific AMDGCN models added here are a bit arbitrary, based on
what we intend to initially support in GDB. This list will need to be
updated in the future anyway. The complete up-to-date list of existing
AMDGPU models can be found here:
https://llvm.org/docs/AMDGPUUsage.html#processors
The ELF format for this architecture is documented here:
https://llvm.org/docs/AMDGPUUsage.html#elf-code-object
The flags for the "HSA" OS ABI are properly versioned and documented on
that page. But the NONE, PAL and MESA3D OS ABIs are not well documented
nor versioned. Taking a peek at the LLVM source code, we see that they
encode their flags the same way as HSA v3. For example, for PAL:
https://github.com/llvm/llvm-project/blob/
c8b614cd74a92d85936aed5ac7c642af75ffdc29/llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUTargetStreamer.cpp#L601
So at least, we know that all AMDGPU objects (of which AMDGCN objects
are a subset of) at the time of writing encode the specific GPU model in
the EF_AMDGPU_MACH field of e_flags.
bfd/ChangeLog:
* Makefile.am (ALL_MACHINES, ALL_MACHINES_CFILES):
Add cpu-amdgcn.c.
(BFD64_BACKENDS): Add elf64-amdgcn.lo.
(BFD64_BACKENDS_CFILES): Add elf64-amdgcn.c.
* Makefile.in: Re-generate.
* cpu-amdgcn.c: New.
* elf64-amdgcn.c: New.
* archures.c (bfd_architecture): Add bfd_arch_amdgcn and related
mach defines.
(bfd_amdgcn_arch): New.
(bfd_archures_list): Add bfd_amdgcn_arch.
* bfd-in2.h: Re-generate.
* config.bfd: Handle amdgcn* target.
* configure.ac: Handle amdgcn_elf64_le_vec.
* configure: Re-generate.
* elf-bfd.h (elf_target_id): Add AMDGCN_ELF_DATA.
* targets.c (amdgcn_elf64_le_vec): New.
(_bfd_target_vector): Add amdgcn_elf64_le_vec.
include/ChangeLog:
* elf/amdgpu.h: New.
* elf/common.h (ELFOSABI_AMDGPU_HSA): Add.
Change-Id: I969f7b14960797e88891c308749a6e341eece5b2
+2022-03-16 Simon Marchi <simon.marchi@efficios.com>
+
+ * Makefile.am (ALL_MACHINES, ALL_MACHINES_CFILES):
+ Add cpu-amdgcn.c.
+ (BFD64_BACKENDS): Add elf64-amdgcn.lo.
+ (BFD64_BACKENDS_CFILES): Add elf64-amdgcn.c.
+ * Makefile.in: Re-generate.
+ * cpu-amdgcn.c: New.
+ * elf64-amdgcn.c: New.
+ * archures.c (bfd_architecture): Add bfd_arch_amdgcn and related
+ mach defines.
+ (bfd_amdgcn_arch): New.
+ (bfd_archures_list): Add bfd_amdgcn_arch.
+ * bfd-in2.h: Re-generate.
+ * config.bfd: Handle amdgcn* target.
+ * configure.ac: Handle amdgcn_elf64_le_vec.
+ * configure: Re-generate.
+ * elf-bfd.h (elf_target_id): Add AMDGCN_ELF_DATA.
+ * targets.c (amdgcn_elf64_le_vec): New.
+ (_bfd_target_vector): Add amdgcn_elf64_le_vec.
+
2022-03-01 Torbjörn Svensson <torbjorn.svensson@st.com>
Fred Eisele <fredrick.eisele@gmail.com>
ALL_MACHINES = \
cpu-aarch64.lo \
cpu-alpha.lo \
+ cpu-amdgcn.lo \
cpu-arc.lo \
cpu-arm.lo \
cpu-avr.lo \
ALL_MACHINES_CFILES = \
cpu-aarch64.c \
cpu-alpha.c \
+ cpu-amdgcn.c \
cpu-arc.c \
cpu-arm.c \
cpu-avr.c \
elf32-score.lo \
elf32-score7.lo \
elf64-alpha.lo \
+ elf64-amdgcn.lo \
elf64-gen.lo \
elf64-hppa.lo \
elf64-ia64.lo \
elf32-score.c \
elf32-score7.c \
elf64-alpha.c \
+ elf64-amdgcn.c \
elf64-gen.c \
elf64-hppa.c \
elf64-ia64-vms.c \
ALL_MACHINES = \
cpu-aarch64.lo \
cpu-alpha.lo \
+ cpu-amdgcn.lo \
cpu-arc.lo \
cpu-arm.lo \
cpu-avr.lo \
ALL_MACHINES_CFILES = \
cpu-aarch64.c \
cpu-alpha.c \
+ cpu-amdgcn.c \
cpu-arc.c \
cpu-arm.c \
cpu-avr.c \
elf32-score.lo \
elf32-score7.lo \
elf64-alpha.lo \
+ elf64-amdgcn.lo \
elf64-gen.lo \
elf64-hppa.lo \
elf64-ia64.lo \
elf32-score.c \
elf32-score7.c \
elf64-alpha.c \
+ elf64-amdgcn.c \
elf64-gen.c \
elf64-hppa.c \
elf64-ia64-vms.c \
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/corefile.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-aarch64.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-alpha.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-amdgcn.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-arc.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-arm.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-avr.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf64-aarch64.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf64-alpha.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf64-amdgcn.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf64-bpf.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf64-gen.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf64-hppa.Plo@am__quote@
. bfd_arch_loongarch, {* LoongArch *}
.#define bfd_mach_loongarch32 1
.#define bfd_mach_loongarch64 2
+. bfd_arch_amdgcn, {* AMDGCN *}
+.#define bfd_mach_amdgcn_unknown 0x000
+.#define bfd_mach_amdgcn_gfx900 0x02c
+.#define bfd_mach_amdgcn_gfx904 0x02e
+.#define bfd_mach_amdgcn_gfx906 0x02f
+.#define bfd_mach_amdgcn_gfx908 0x030
+.#define bfd_mach_amdgcn_gfx90a 0x03f
+.#define bfd_mach_amdgcn_gfx1010 0x033
+.#define bfd_mach_amdgcn_gfx1011 0x034
+.#define bfd_mach_amdgcn_gfx1012 0x035
+.#define bfd_mach_amdgcn_gfx1030 0x036
+.#define bfd_mach_amdgcn_gfx1031 0x037
+.#define bfd_mach_amdgcn_gfx1032 0x038
. bfd_arch_last
. };
*/
extern const bfd_arch_info_type bfd_aarch64_arch;
extern const bfd_arch_info_type bfd_alpha_arch;
+extern const bfd_arch_info_type bfd_amdgcn_arch;
extern const bfd_arch_info_type bfd_arc_arch;
extern const bfd_arch_info_type bfd_arm_arch;
extern const bfd_arch_info_type bfd_avr_arch;
#else
&bfd_aarch64_arch,
&bfd_alpha_arch,
+ &bfd_amdgcn_arch,
&bfd_arc_arch,
&bfd_arm_arch,
&bfd_avr_arch,
bfd_arch_loongarch, /* LoongArch */
#define bfd_mach_loongarch32 1
#define bfd_mach_loongarch64 2
+ bfd_arch_amdgcn, /* AMDGCN */
+#define bfd_mach_amdgcn_unknown 0x000
+#define bfd_mach_amdgcn_gfx900 0x02c
+#define bfd_mach_amdgcn_gfx904 0x02e
+#define bfd_mach_amdgcn_gfx906 0x02f
+#define bfd_mach_amdgcn_gfx908 0x030
+#define bfd_mach_amdgcn_gfx90a 0x03f
+#define bfd_mach_amdgcn_gfx1010 0x033
+#define bfd_mach_amdgcn_gfx1011 0x034
+#define bfd_mach_amdgcn_gfx1012 0x035
+#define bfd_mach_amdgcn_gfx1030 0x036
+#define bfd_mach_amdgcn_gfx1031 0x037
+#define bfd_mach_amdgcn_gfx1032 0x038
bfd_arch_last
};
am33_2.0*) targ_archs=bfd_mn10300_arch ;;
arc*) targ_archs=bfd_arc_arch ;;
arm*) targ_archs=bfd_arm_arch ;;
+amdgcn*) targ_archs=bfd_amdgcn_arch ;;
bfin*) targ_archs=bfd_bfin_arch ;;
c30*) targ_archs=bfd_tic30_arch ;;
c4x*) targ_archs=bfd_tic4x_arch ;;
targ_defvec=alpha_ecoff_le_vec
want64=true
;;
+ amdgcn-*-*)
+ targ_defvec=amdgcn_elf64_le_vec
+ want64=true
+ ;;
ia64*-*-freebsd* | ia64*-*-netbsd* | ia64*-*-linux-* | ia64*-*-elf* | ia64*-*-kfreebsd*-gnu)
targ_defvec=ia64_elf64_le_vec
targ_selvecs="ia64_elf64_be_vec ia64_pei_vec"
alpha_vms_vec) tb="$tb vms-alpha.lo vms-misc.lo vms-lib.lo"; target_size=64 ;;
alpha_vms_lib_txt_vec) tb="$tb vms-lib.lo vms-misc.lo" ;;
am33_elf32_linux_vec) tb="$tb elf32-am33lin.lo elf32.lo $elf" ;;
+ amdgcn_elf64_le_vec) tb="$tb elf64-amdgcn.lo elf64.lo $elf"; target_size=64 ;;
aout0_be_vec) tb="$tb aout0.lo aout32.lo" ;;
aout64_vec) tb="$tb demo64.lo aout64.lo"; target_size=64 ;;
aout_vec) tb="$tb host-aout.lo aout32.lo" ;;
alpha_vms_vec) tb="$tb vms-alpha.lo vms-misc.lo vms-lib.lo"; target_size=64 ;;
alpha_vms_lib_txt_vec) tb="$tb vms-lib.lo vms-misc.lo" ;;
am33_elf32_linux_vec) tb="$tb elf32-am33lin.lo elf32.lo $elf" ;;
+ amdgcn_elf64_le_vec) tb="$tb elf64-amdgcn.lo elf64.lo $elf"; target_size=64 ;;
aout0_be_vec) tb="$tb aout0.lo aout32.lo" ;;
aout64_vec) tb="$tb demo64.lo aout64.lo"; target_size=64 ;;
aout_vec) tb="$tb host-aout.lo aout32.lo" ;;
--- /dev/null
+/* BFD support for the AMDGCN GPU architecture.
+
+ Copyright (C) 2019-2022 Free Software Foundation, Inc.
+
+ 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. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "sysdep.h"
+#include "bfd.h"
+#include "libbfd.h"
+
+#define N(MACHINE, PRINTABLE_NAME, DEFAULT, NEXT) \
+ { \
+ 32, /* 32 bits in a word */ \
+ 64, /* 64 bits in an address */ \
+ 8, /* 8 bits in a byte */ \
+ bfd_arch_amdgcn, \
+ MACHINE, \
+ "amdgcn", \
+ PRINTABLE_NAME, \
+ 3, /* section align power */ \
+ DEFAULT, \
+ bfd_default_compatible, \
+ bfd_default_scan, \
+ bfd_arch_default_fill, \
+ NEXT, \
+ 0 \
+ }
+
+#define NN(index) (&arch_info_struct[index])
+
+static const bfd_arch_info_type arch_info_struct[] =
+{
+ N (bfd_mach_amdgcn_gfx904, "amdgcn:gfx904", false, NN (1)),
+ N (bfd_mach_amdgcn_gfx906, "amdgcn:gfx906", false, NN (2)),
+ N (bfd_mach_amdgcn_gfx908, "amdgcn:gfx908", false, NN (3)),
+ N (bfd_mach_amdgcn_gfx90a, "amdgcn:gfx90a", false, NN (4)),
+ N (bfd_mach_amdgcn_gfx1010, "amdgcn:gfx1010", false, NN (5)),
+ N (bfd_mach_amdgcn_gfx1011, "amdgcn:gfx1011", false, NN (6)),
+ N (bfd_mach_amdgcn_gfx1012, "amdgcn:gfx1012", false, NN (7)),
+ N (bfd_mach_amdgcn_gfx1030, "amdgcn:gfx1030", false, NN (8)),
+ N (bfd_mach_amdgcn_gfx1031, "amdgcn:gfx1031", false, NN (9)),
+ N (bfd_mach_amdgcn_gfx1032, "amdgcn:gfx1032", false, NULL)
+};
+
+const bfd_arch_info_type bfd_amdgcn_arch =
+ N (bfd_mach_amdgcn_gfx900, "amdgcn:gfx900", true, NN (0));
{
AARCH64_ELF_DATA = 1,
ALPHA_ELF_DATA,
+ AMDGCN_ELF_DATA,
ARC_ELF_DATA,
ARM_ELF_DATA,
AVR_ELF_DATA,
--- /dev/null
+/* AMDGCN ELF support for BFD.
+
+ Copyright (C) 2019-2022 Free Software Foundation, Inc.
+
+ 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. If not, see <http://www.gnu.org/licenses/>. */
+
+/* This file handles ELF files that are of the AMDGCN architecture. The
+ format is documented here:
+
+ https://llvm.org/docs/AMDGPUUsage.html#elf-code-object */
+
+#include "sysdep.h"
+#include "bfd.h"
+#include "libbfd.h"
+#include "elf-bfd.h"
+#include "elf/amdgpu.h"
+
+#include <string.h>
+
+static bool
+elf64_amdgcn_object_p (bfd *abfd)
+{
+ Elf_Internal_Ehdr *hdr = elf_elfheader (abfd);
+ unsigned int mach;
+ unsigned char osabi;
+ unsigned char osabi_version;
+
+ BFD_ASSERT (hdr->e_machine == EM_AMDGPU);
+
+ osabi = hdr->e_ident[EI_OSABI];
+ osabi_version = hdr->e_ident[EI_ABIVERSION];
+
+ /* Objects with OS ABI HSA version 2 encoded the GPU model differently (in a
+ note), but they are deprecated, so we don't need to support them. Reject
+ them specifically.
+
+ At the time of writing, all AMDGCN objects encode the specific GPU
+ model in the EF_AMDGPU_MACH field of e_flags. */
+ if (osabi == ELFOSABI_AMDGPU_HSA
+ && osabi_version < ELFABIVERSION_AMDGPU_HSA_V3)
+ return false;
+
+ mach = elf_elfheader (abfd)->e_flags & EF_AMDGPU_MACH;
+
+ /* Avoid matching non-AMDGCN AMDGPU objects (e.g. r600). */
+ if (mach < EF_AMDGPU_MACH_AMDGCN_MIN)
+ return false;
+
+ bfd_default_set_arch_mach (abfd, bfd_arch_amdgcn, mach);
+ return true;
+}
+
+
+#define TARGET_LITTLE_SYM amdgcn_elf64_le_vec
+#define TARGET_LITTLE_NAME "elf64-amdgcn"
+#define ELF_ARCH bfd_arch_amdgcn
+#define ELF_TARGET_ID AMDGCN_ELF_DATA
+#define ELF_MACHINE_CODE EM_AMDGPU
+#define ELF_MAXPAGESIZE 0x10000 /* 64KB */
+#define ELF_COMMONPAGESIZE 0x1000 /* 4KB */
+
+#define bfd_elf64_bfd_reloc_type_lookup bfd_default_reloc_type_lookup
+#define bfd_elf64_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
+
+#define elf_backend_object_p elf64_amdgcn_object_p
+
+#include "elf64-target.h"
extern const bfd_target alpha_vms_vec;
extern const bfd_target alpha_vms_lib_txt_vec;
extern const bfd_target am33_elf32_linux_vec;
+extern const bfd_target amdgcn_elf64_le_vec;
extern const bfd_target aout_vec;
extern const bfd_target arc_elf32_be_vec;
extern const bfd_target arc_elf32_le_vec;
&aarch64_pei_vec,
#endif
+#ifdef BFD64
+ &amdgcn_elf64_le_vec,
+#endif
+
#ifdef BFD64
&alpha_ecoff_le_vec,
&alpha_elf64_vec,
+2022-03-16 Simon Marchi <simon.marchi@efficios.com>
+
+ * elf/amdgpu.h: New.
+ * elf/common.h (ELFOSABI_AMDGPU_HSA): Add.
+
2022-03-11 Vladimir Mezentsev <vladimir.mezentsev@oracle.com>
* collectorAPI.h: New file.
--- /dev/null
+/* AMDGPU ELF support for BFD.
+
+ Copyright (C) 2019-2021 Free Software Foundation, Inc.
+
+ 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. If not, see <http://www.gnu.org/licenses/>. */
+
+#ifndef _ELF_AMDGPU_H
+#define _ELF_AMDGPU_H
+
+/* e_ident[EI_ABIVERSION] values, when e_ident[EI_OSABI] is
+ ELFOSABI_AMDGPU_HSA. */
+
+#define ELFABIVERSION_AMDGPU_HSA_V2 0
+#define ELFABIVERSION_AMDGPU_HSA_V3 1
+#define ELFABIVERSION_AMDGPU_HSA_V4 2
+#define ELFABIVERSION_AMDGPU_HSA_V5 3
+
+/* Processor selection mask for EF_AMDGPU_MACH_* values. */
+
+#define EF_AMDGPU_MACH 0x0ff
+#define EF_AMDGPU_MACH_AMDGCN_MIN 0x020
+
+#endif /* _ELF_AMDGPU_H */
#define ELFOSABI_OPENVOS 18 /* Stratus Technologies OpenVOS */
#define ELFOSABI_C6000_ELFABI 64 /* Bare-metal TMS320C6000 */
+#define ELFOSABI_AMDGPU_HSA 64 /* AMD HSA Runtime */
#define ELFOSABI_C6000_LINUX 65 /* Linux TMS320C6000 */
#define ELFOSABI_ARM_FDPIC 65 /* ARM FDPIC */
#define ELFOSABI_ARM 97 /* ARM */
projects / binutils-gdb.git / commitdiff