1 // SPDX-License-Identifier: GPL-2.0-or-later
32 	unsigned long r_sym = ELF64_R_SYM (rela->r_info);  in process_reloc_for_got()
33 	unsigned long r_type = ELF64_R_TYPE (rela->r_info);  in process_reloc_for_got()
34 	Elf64_Sxword r_addend = rela->r_addend;  in process_reloc_for_got()
35 	struct got_entry *g;  in process_reloc_for_got()  local
40 	for (g = chains + r_sym; g ; g = g->next)  in process_reloc_for_got()
41 		if (g->r_addend == r_addend) {  in process_reloc_for_got()
42 			if (g->got_offset == 0) {  in process_reloc_for_got()
43 				g->got_offset = *poffset;  in process_reloc_for_got()
44 				*poffset += 8;  in process_reloc_for_got()
49 	g = kmalloc (sizeof (*g), GFP_KERNEL);  in process_reloc_for_got()
50 	g->next = chains[r_sym].next;  in process_reloc_for_got()
51 	g->r_addend = r_addend;  in process_reloc_for_got()
52 	g->got_offset = *poffset;  in process_reloc_for_got()
53 	*poffset += 8;  in process_reloc_for_got()
54 	chains[r_sym].next = g;  in process_reloc_for_got()
58 	   42 valid relocation types, and a 32-bit field.  Co-opt the  in process_reloc_for_got()
60 	rela->r_info |= g->got_offset << 8;  in process_reloc_for_got()
72 	esechdrs = sechdrs + hdr->e_shnum;  in module_frob_arch_sections()
79 		if (s->sh_type == SHT_SYMTAB)  in module_frob_arch_sections()
81 		else if (!strcmp(".got", secstrings + s->sh_name)) {  in module_frob_arch_sections()
83 			me->arch.gotsecindex = s - sechdrs;  in module_frob_arch_sections()
87 		printk(KERN_ERR "module %s: no symbol table\n", me->name);  in module_frob_arch_sections()
88 		return -ENOEXEC;  in module_frob_arch_sections()
91 		printk(KERN_ERR "module %s: no got section\n", me->name);  in module_frob_arch_sections()
92 		return -ENOEXEC;  in module_frob_arch_sections()
95 	nsyms = symtab->sh_size / sizeof(Elf64_Sym);  in module_frob_arch_sections()
100 		       me->name);  in module_frob_arch_sections()
101 		return -ENOMEM;  in module_frob_arch_sections()
104 	got->sh_size = 0;  in module_frob_arch_sections()
105 	got->sh_addralign = 8;  in module_frob_arch_sections()
106 	got->sh_type = SHT_NOBITS;  in module_frob_arch_sections()
111 		if (s->sh_type == SHT_RELA) {  in module_frob_arch_sections()
112 			nrela = s->sh_size / sizeof(Elf64_Rela);  in module_frob_arch_sections()
113 			rela = (void *)hdr + s->sh_offset;  in module_frob_arch_sections()
116 						      &got->sh_size);  in module_frob_arch_sections()
121 		struct got_entry *g, *n;  in module_frob_arch_sections()  local
122 		for (g = chains[i].next; g ; g = n) {  in module_frob_arch_sections()
123 			n = g->next;  in module_frob_arch_sections()
124 			kfree(g);  in module_frob_arch_sections()
151 	gp = (u64)me->core_layout.base + me->core_layout.size - 0x8000;  in apply_relocate_add()
152 	got = sechdrs[me->arch.gotsecindex].sh_addr;  in apply_relocate_add()
157 		unsigned long r_got_offset = r_type >> 8;  in apply_relocate_add()
167 		value = sym->st_value + rela[i].r_addend;  in apply_relocate_add()
181 			value -= gp;  in apply_relocate_add()
188 			lo = hi - gp;  in apply_relocate_add()
197 			value = gp - (u64)location;  in apply_relocate_add()
199 			hi = (int)(value - lo);  in apply_relocate_add()
209 			if (sym->st_shndx == SHN_UNDEF)  in apply_relocate_add()
211 			if ((sym->st_other & STO_ALPHA_STD_GPLOAD) ==  in apply_relocate_add()
214 				value += 8;  in apply_relocate_add()
217 			value -= (u64)location + 4;  in apply_relocate_add()
230 			value -= (u64)location;  in apply_relocate_add()
236 			value -= (u64)location;  in apply_relocate_add()
240 			value = (long)(value - gp + 0x8000) >> 16;  in apply_relocate_add()
246 			value -= gp;  in apply_relocate_add()
250 			value -= gp;  in apply_relocate_add()
257 			       me->name, r_type);  in apply_relocate_add()
258 			return -ENOEXEC;  in apply_relocate_add()
260 			if (ELF64_ST_TYPE (sym->st_info) == STT_SECTION)  in apply_relocate_add()
263 			         me->name, r_type, sym->st_shndx);  in apply_relocate_add()
267 			         me->name, r_type, strtab + sym->st_name);  in apply_relocate_add()
268 			return -ENOEXEC;  in apply_relocate_add()