diff options
| author | Mark Corbin <mark@dibsco.co.uk> | 2024-09-17 01:51:07 +1000 |
|---|---|---|
| committer | Alistair Francis <alistair.francis@wdc.com> | 2024-10-02 15:11:52 +1000 |
| commit | 8951b87da45a8434d3c276d7c30028df85487270 (patch) | |
| tree | 70f2a7fc38ae6087a71ab45453b2978b326d2745 /bsd-user | |
| parent | 83726b77983df7b3ed11023b9fd36b82e710c2aa (diff) | |
bsd-user: Add RISC-V ELF definitions and hardware capability detection
Introduced RISC-V specific ELF definitions and hardware capability
detection.
Additionally, a function to retrieve hardware capabilities
('get_elf_hwcap') is implemented, which returns the common bits set in
each CPU's ISA strings.
Signed-off-by: Mark Corbin <mark@dibsco.co.uk>
Signed-off-by: Ajeet Singh <itachis@FreeBSD.org>
Co-authored-by: Kyle Evans <kevans@FreeBSD.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240916155119.14610-6-itachis@FreeBSD.org>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Diffstat (limited to 'bsd-user')
| -rw-r--r-- | bsd-user/riscv/target_arch_elf.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/bsd-user/riscv/target_arch_elf.h b/bsd-user/riscv/target_arch_elf.h new file mode 100644 index 0000000000..4eb915e61e --- /dev/null +++ b/bsd-user/riscv/target_arch_elf.h @@ -0,0 +1,42 @@ +/* + * RISC-V ELF definitions + * + * Copyright (c) 2019 Mark Corbin + * + * 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 2 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 TARGET_ARCH_ELF_H +#define TARGET_ARCH_ELF_H + +#define elf_check_arch(x) ((x) == EM_RISCV) +#define ELF_START_MMAP 0x80000000 +#define ELF_ET_DYN_LOAD_ADDR 0x100000 +#define ELF_CLASS ELFCLASS64 + +#define ELF_DATA ELFDATA2LSB +#define ELF_ARCH EM_RISCV + +#define ELF_HWCAP get_elf_hwcap() +static uint32_t get_elf_hwcap(void) +{ + RISCVCPU *cpu = RISCV_CPU(thread_cpu); + + return cpu->env.misa_ext_mask; +} + +#define USE_ELF_CORE_DUMP +#define ELF_EXEC_PAGESIZE 4096 + +#endif /* TARGET_ARCH_ELF_H */ |