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[RFC,12/22] riscv: s64ilp32: Add ELF32 support

Message ID	20230518131013.3366406-13-guoren@kernel.org
State	New
Headers	Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; From: guoren@kernel.org To: arnd@arndb.de, guoren@kernel.org, palmer@rivosinc.com, tglx@linutronix.de, peterz@infradead.org, luto@kernel.org, conor.dooley@microchip.com, heiko@sntech.de, jszhang@kernel.org, chenhuacai@kernel.org, apatel@ventanamicro.com, atishp@atishpatra.org, mark.rutland@arm.com, bjorn@kernel.org, paul.walmsley@sifive.com, catalin.marinas@arm.com, will@kernel.org, rppt@kernel.org, anup@brainfault.org, shihua@iscas.ac.cn, jiawei@iscas.ac.cn, liweiwei@iscas.ac.cn, luxufan@iscas.ac.cn, chunyu@iscas.ac.cn, tsu.yubo@gmail.com, wefu@redhat.com, wangjunqiang@iscas.ac.cn, kito.cheng@sifive.com, andy.chiu@sifive.com, vincent.chen@sifive.com, greentime.hu@sifive.com, corbet@lwn.net, wuwei2016@iscas.ac.cn, jrtc27@jrtc27.com Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Guo Ren <guoren@linux.alibaba.com>, Guo Ren <guoren@kerenl.org> Subject: [RFC PATCH 12/22] riscv: s64ilp32: Add ELF32 support Date: Thu, 18 May 2023 09:10:03 -0400 Message-Id: <20230518131013.3366406-13-guoren@kernel.org> In-Reply-To: <20230518131013.3366406-1-guoren@kernel.org> References: <20230518131013.3366406-1-guoren@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk
Series	riscv: s64ilp32: Running 32-bit Linux kernel on 64-bit supervisor mode \| [RFC,00/22] riscv: s64ilp32: Running 32-bit Linux kernel on 64-bit supervisor mode [RFC,01/22] riscv: vdso: Unify vdso32 & compat_vdso into vdso/Makefile [RFC,02/22] riscv: vdso: Remove compat_vdso/ [RFC,03/22] riscv: vdso: Add time-related vDSO common flow for vdso32 [RFC,04/22] clocksource: riscv: s64ilp32: Use __riscv_xlen instead of CONFIG_32BIT [RFC,05/22] riscv: s64ilp32: Introduce xlen_t [RFC,06/22] irqchip: riscv: s64ilp32: Use __riscv_xlen instead of CONFIG_32BIT [RFC,07/22] riscv: s64ilp32: Add sbi support [RFC,08/22] riscv: s64ilp32: Add asid support [RFC,09/22] riscv: s64ilp32: Introduce PTR_L and PTR_S [RFC,10/22] riscv: s64ilp32: Enable user space runtime environment [RFC,11/22] riscv: s64ilp32: Add ebpf jit support [RFC,12/22] riscv: s64ilp32: Add ELF32 support [RFC,13/22] riscv: s64ilp32: Add ARCH RV64 ILP32 compiling framework [RFC,14/22] riscv: s64ilp32: Add MMU_SV39 mode support for 32BIT [RFC,15/22] riscv: s64ilp32: Enable native atomic64 [RFC,16/22] riscv: s64ilp32: Add TImode (128 int) support [RFC,17/22] riscv: s64ilp32: Implement cmpxchg_double [RFC,18/22] riscv: s64ilp32: Disable KVM [RFC,19/22] riscv: Cleanup rv32_defconfig [RFC,20/22] riscv: s64ilp32: Add rv64ilp32_defconfig [RFC,21/22] riscv: s64ilp32: Correct the rv64ilp32 stackframe layout [RFC,22/22] riscv: s64ilp32: Temporary workaround solution to gcc problem

Commit Message

Guo Ren May 18, 2023, 1:10 p.m. UTC

  From: Guo Ren <guoren@linux.alibaba.com>

Use abi_len to distinct ELF32 and ELF64 because s64ilp32 is xlen=64 and
abi_len=32 (__SIZEOF_POINTER__=4). And s64ilp32 is an ELF32 based the
same as s32ilp32.

Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Signed-off-by: Guo Ren <guoren@kerenl.org>
---
 arch/riscv/include/uapi/asm/elf.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff mbox series

Patch

diff --git a/arch/riscv/include/uapi/asm/elf.h b/arch/riscv/include/uapi/asm/elf.h
index d696d6610231..962e8ec8fe05 100644
--- a/arch/riscv/include/uapi/asm/elf.h
+++ b/arch/riscv/include/uapi/asm/elf.h
@@ -24,7 +24,7 @@  typedef __u64 elf_fpreg_t;
 typedef union __riscv_fp_state elf_fpregset_t;
 #define ELF_NFPREG (sizeof(struct __riscv_d_ext_state) / sizeof(elf_fpreg_t))
 
-#if __riscv_xlen == 64
+#if __SIZEOF_POINTER__ == 8
 #define ELF_RISCV_R_SYM(r_info)		ELF64_R_SYM(r_info)
 #define ELF_RISCV_R_TYPE(r_info)	ELF64_R_TYPE(r_info)
 #else