4  * SPDX-License-Identifier: Apache-2.0
91  * @brief Function computing a relocation (X in AArch64 ELF).
98  * @return Result of the relocation operation (X in AArch64 ELF)
107 		return sym_base_addr + addend - loc;  in reloc()
109 		return AARCH64_PAGE(sym_base_addr + addend) - AARCH64_PAGE(loc);  in reloc()
125  * @retval -ERANGE Relocation value overflow
131 	int64_t x;  in data_reloc_handler()  local
135 		*(int64_t *)loc = reloc(AARCH64_RELOC_TYPE_ABS, loc, sym_base_addr, rel->r_addend);  in data_reloc_handler()
139 		x = reloc(AARCH64_RELOC_TYPE_ABS, loc, sym_base_addr, rel->r_addend);  in data_reloc_handler()
140 		if (x < 0 || x > UINT32_MAX) {  in data_reloc_handler()
141 			return -ERANGE;  in data_reloc_handler()
143 		*(uint32_t *)loc = (uint32_t)x;  in data_reloc_handler()
147 		x = reloc(AARCH64_RELOC_TYPE_ABS, loc, sym_base_addr, rel->r_addend);  in data_reloc_handler()
148 		if (x < 0 || x > UINT16_MAX) {  in data_reloc_handler()
149 			return -ERANGE;  in data_reloc_handler()
151 		*(uint16_t *)loc = (uint16_t)x;  in data_reloc_handler()
155 		*(int64_t *)loc = reloc(AARCH64_RELOC_TYPE_PREL, loc, sym_base_addr, rel->r_addend);  in data_reloc_handler()
159 		x = reloc(AARCH64_RELOC_TYPE_PREL, loc, sym_base_addr, rel->r_addend);  in data_reloc_handler()
160 		if (x < INT32_MIN || x > INT32_MAX) {  in data_reloc_handler()
161 			return -ERANGE;  in data_reloc_handler()
163 		*(int32_t *)loc = (int32_t)x;  in data_reloc_handler()
167 		x = reloc(AARCH64_RELOC_TYPE_PREL, loc, sym_base_addr, rel->r_addend);  in data_reloc_handler()
168 		if (x < INT16_MIN || x > INT16_MAX) {  in data_reloc_handler()
169 			return -ERANGE;  in data_reloc_handler()
171 		*(int16_t *)loc = (int16_t)x;  in data_reloc_handler()
189  * @retval -ERANGE Relocation value overflow
195 	int64_t x;  in movw_reloc_handler()  local
197 	int lsb = 0; /* LSB of X to be used */  in movw_reloc_handler()
257 	x = reloc(type, loc, sym_base_addr, rel->r_addend);  in movw_reloc_handler()
258 	imm = x >> lsb;  in movw_reloc_handler()
264 		if (x >= 0) {  in movw_reloc_handler()
268 			/* Need to invert immediate value for MOVZ. */  in movw_reloc_handler()
279 		return -ERANGE;  in movw_reloc_handler()
293  * @retval -ERANGE Relocation value overflow
299 	int lsb = 2;    /* LSB of X to be used */  in imm_reloc_handler()
304 	int64_t x;  in imm_reloc_handler()  local
377 	x = reloc(type, loc, sym_base_addr, rel->r_addend);  in imm_reloc_handler()
378 	x >>= lsb;  in imm_reloc_handler()
380 	imm = x & BIT_MASK(len);  in imm_reloc_handler()
401 	/* Mask X sign bit and upper bits. */  in imm_reloc_handler()
402 	x = (int64_t)(x & ~BIT_MASK(len - 1)) >> (len - 1);  in imm_reloc_handler()
404 	/* Incrementing X will either overflow and set it to 0 or  in imm_reloc_handler()
407 	if ((int64_t)x++ > 1) {  in imm_reloc_handler()
408 		return -ERANGE;  in imm_reloc_handler()
422  * https://github.com/ARM-software/abi-aa/blob/main/aaelf64/aaelf64.rst#relocation
430  * @retval -ENOTSUP Unsupported relocation
431  * @retval -ENOEXEC Invalid relocation
438 	elf_word reloc_type = ELF_R_TYPE(rel->r_info);  in arch_elf_relocate()
500 		/* TODO Handle case when address exceeds +/- 128MB */  in arch_elf_relocate()
505 		return -ENOEXEC;  in arch_elf_relocate()
508 	if (overflow_check && ret == -ERANGE) {  in arch_elf_relocate()
509 		LOG_ERR("sym '%s': relocation out of range (%#lx -> %#lx)\n", sym_name, loc,  in arch_elf_relocate()
511 		return -ENOEXEC;  in arch_elf_relocate()