From 452439e4c22ae6cb0c3f9055a572ba862c78271a Mon Sep 17 00:00:00 2001
From: Joel Severin <joel.severin@icemanor.se>
Date: Sun, 12 May 2024 19:26:03 +0200
Subject: [PATCH] Add dummy ELF constants for Wasm

The kernel needs ELF to build, but Wasm currently only support for the
.wasm file format. Some dummy ELF constants are added as a workaround.
---
 arch/wasm/include/uapi/asm/elf.h | 80 ++++++++++++++++++++++++++++++++
 1 file changed, 80 insertions(+)
 create mode 100644 arch/wasm/include/uapi/asm/elf.h

diff --git a/arch/wasm/include/uapi/asm/elf.h b/arch/wasm/include/uapi/asm/elf.h
new file mode 100644
index 000000000..853cd3786
--- /dev/null
+++ b/arch/wasm/include/uapi/asm/elf.h
@@ -0,0 +1,80 @@
+/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
+
+#ifndef _UAPI_ASM_WASM_ELF_H
+#define _UAPI_ASM_WASM_ELF_H
+
+#include <asm/ptrace.h>
+
+/* ELF register definitions */
+typedef unsigned long elf_greg_t;
+typedef struct user_regs_struct elf_gregset_t;
+#define ELF_NGREG (sizeof(elf_gregset_t) / sizeof(elf_greg_t))
+
+/* We don't support f without d, or q.  */
+typedef __u64 elf_fpreg_t;
+typedef union __wasm_fp_state elf_fpregset_t;
+#define ELF_NFPREG (sizeof(struct __wasm_d_ext_state) / sizeof(elf_fpreg_t))
+
+//#define ELF_WASM_R_SYM(r_info)		ELF32_R_SYM(r_info)
+//#define ELF_WASM_R_TYPE(r_info)	ELF32_R_TYPE(r_info)
+
+/* Relocation types used by the dynamic linker */
+#define R_WASM_NONE		0
+#define R_WASM_32		1
+#define R_WASM_64		2
+#define R_WASM_RELATIVE	3
+#define R_WASM_COPY		4
+#define R_WASM_JUMP_SLOT	5
+#define R_WASM_TLS_DTPMOD32	6
+#define R_WASM_TLS_DTPMOD64	7
+#define R_WASM_TLS_DTPREL32	8
+#define R_WASM_TLS_DTPREL64	9
+#define R_WASM_TLS_TPREL32	10
+#define R_WASM_TLS_TPREL64	11
+
+/* Relocation types not used by the dynamic linker */
+#define R_WASM_BRANCH		16
+#define R_WASM_JAL		17
+#define R_WASM_CALL		18
+#define R_WASM_CALL_PLT	19
+#define R_WASM_GOT_HI20	20
+#define R_WASM_TLS_GOT_HI20	21
+#define R_WASM_TLS_GD_HI20	22
+#define R_WASM_PCREL_HI20	23
+#define R_WASM_PCREL_LO12_I	24
+#define R_WASM_PCREL_LO12_S	25
+#define R_WASM_HI20		26
+#define R_WASM_LO12_I		27
+#define R_WASM_LO12_S		28
+#define R_WASM_TPREL_HI20	29
+#define R_WASM_TPREL_LO12_I	30
+#define R_WASM_TPREL_LO12_S	31
+#define R_WASM_TPREL_ADD	32
+#define R_WASM_ADD8		33
+#define R_WASM_ADD16		34
+#define R_WASM_ADD32		35
+#define R_WASM_ADD64		36
+#define R_WASM_SUB8		37
+#define R_WASM_SUB16		38
+#define R_WASM_SUB32		39
+#define R_WASM_SUB64		40
+#define R_WASM_GNU_VTINHERIT	41
+#define R_WASM_GNU_VTENTRY	42
+#define R_WASM_ALIGN		43
+#define R_WASM_RVC_BRANCH	44
+#define R_WASM_RVC_JUMP	45
+#define R_WASM_LUI		46
+#define R_WASM_GPREL_I		47
+#define R_WASM_GPREL_S		48
+#define R_WASM_TPREL_I		49
+#define R_WASM_TPREL_S		50
+#define R_WASM_RELAX		51
+#define R_WASM_SUB6		52
+#define R_WASM_SET6		53
+#define R_WASM_SET8		54
+#define R_WASM_SET16		55
+#define R_WASM_SET32		56
+#define R_WASM_32_PCREL	57
+
+
+#endif /* _UAPI_ASM_WASM_ELF_H */
-- 
2.25.1