1/* $NetBSD: elf_machdep.h,v 1.16 2019/12/08 21:46:03 uwe Exp $ */ 2 3#ifndef _POWERPC_ELF_MACHDEP_H_ 4#define _POWERPC_ELF_MACHDEP_H_ 5 6#define ELF32_MACHDEP_ENDIANNESS ELFDATA2MSB 7#define ELF32_MACHDEP_ID_CASES \ 8 case EM_PPC: \ 9 break; 10 11#define ELF64_MACHDEP_ENDIANNESS ELFDATA2MSB 12#define ELF64_MACHDEP_ID_CASES \ 13 case EM_PPC64: \ 14 break; 15 16#define ELF32_MACHDEP_ID EM_PPC 17#define ELF64_MACHDEP_ID EM_PPC64 18 19 20#ifdef _LP64 21#define KERN_ELFSIZE 64 22#define ARCH_ELFSIZE 64 /* MD native binary size */ 23#else 24#define KERN_ELFSIZE 32 25#define ARCH_ELFSIZE 32 /* MD native binary size */ 26#endif 27 28/* Specify the value of _GLOBAL_OFFSET_TABLE_ */ 29#define DT_PPC_GOT DT_LOPROC 30#define DT_PPC64_GLINK (DT_LOPROC + 0) 31#define DT_PPC64_OPD (DT_LOPROC + 1) 32#define DT_PPC64_OPDSZ (DT_LOPROC + 2) 33#define DT_PPC64_TLSOPT (DT_LOPROC + 3) 34 35// A = the addend used to compute the value of relocatable field 36// B = the base address of the shared object 37// G = offset into the global offset table 38// L = section offset or address of the procedure link table entry for the 39// symbol + addend 40// M = similar to G except the address which is stored may be the address of 41// the procedure linkage table entry for the symbol 42// P = the place (section offset or address) of the storage unit being 43// relocated (computed using r_offset) 44// R = the offset of the symbol with the section in which the symbol is defined 45// S = the value of the symbol whose index resides in the relocation entry 46// 47// @dtpmod 48// Computes the load module index of the load module that contains the 49// definition of sym. The addend, if present, is ignored. 50// @dtprel 51// Computes a dtv-relative displacement, the difference between the value of 52// S + A and the base address of the thread-local storage block that contains 53// the definition of the symbol, minus 0x8000. 54// @tprel 55// Computes a tp-relative displacement, the difference between the value of 56// S + A and the value of the thread pointer (r13). 57// @got@tlsgd 58// Allocates two contiguous entries in the GOT to hold a tls_index structure, 59// with values @dtpmod and @dtprel, and computes the offset to the first 60// entry relative to the TOC base (r2). 61// @got@tlsld 62// Allocates two contiguous entries in the GOT to hold a tls_index structure, 63// with values @dtpmod and zero, and computes the offset to the first entry 64// relative to the TOC base (r2). 65// @got@dtprel 66// Allocates an entry in the GOT with value @dtprel, and computes the offset 67// to the entry relative to the TOC base (r2). 68// @got@tprel 69// Allocates an entry in the GOT with value @tprel, and computes the offset 70// to the entry relative to the TOC base (r2). 71// 72// #lo(x) = (x & 0xffff) 73// #hi(x) = ((x >> 16) & 0xffff) 74// #ha(x) = (((x >> 16) + ((x & 0x8000) == 0x8000)) & 0xffff) 75// #higher(x) = ((x >> 32) & 0xffff) 76// #highera(x) = 77// (((x >> 32) + ((x & 0xffff8000) == 0xffff8000)) & 0xffff) 78// #highest(x) = ((x >> 48) & 0xffff) 79// #highesta(x) = 80// (((x >> 48) + ((x & 0xffffffff8000) == 0xffffffff8000)) & 0xffff) 81// .TOC. = base TOC base of TOC section for object being relocated 82 83#define R_PPC_NONE 0 84#define R_PPC_ADDR32 1 // S + A 85#define R_PPC_ADDR24 2 // (S + A) >> 2 86#define R_PPC_ADDR16 3 // S + A 87#define R_PPC_ADDR16_LO 4 // #lo(S + A) 88#define R_PPC_ADDR16_HI 5 // #hi(S + A) 89#define R_PPC_ADDR16_HA 6 // #ha(S + A) 90#define R_PPC_ADDR14 7 // (S + A) >> 2 91#define R_PPC_ADDR14_TAKEN 8 // (S + A) >> 2 92#define R_PPC_ADDR14_NTAKEN 9 // (S + A) >> 2 93#define R_PPC_REL24 10 // (S + A - P) >> 2 94#define R_PPC_REL14 11 // (S + A - P) >> 2 95#define R_PPC_REL14_TAKEN 12 // (S + A - P) >> 2 96#define R_PPC_REL14_NTAKEN 13 // (S + A - P) >> 2 97#define R_PPC_GOT16 14 // G + A 98#define R_PPC_GOT16_LO 15 // #lo(G + A) 99#define R_PPC_GOT16_HI 16 // #hi(G + A) 100#define R_PPC_GOT16_HA 17 // #ha(G + A) 101#define R_PPC_PLTREL24 18 // (L + A - P) >> 2 102#define R_PPC_COPY 19 // none 103#define R_PPC_GLOB_DAT 20 // S + A 104#define R_PPC_JMP_SLOT 21 105#define R_PPC_RELATIVE 22 // B + A 106#define R_PPC_LOCAL24PC 23 // (see R_PPC_REL24) 107#define R_PPC_UADDR32 24 // S + A 108#define R_PPC_UADDR16 25 // S + A 109#define R_PPC_REL32 26 // S + A - P 110#define R_PPC_PLT32 27 // L 111#define R_PPC_PLTREL 28 // L - P 112#define R_PPC_PLT16_LO 29 // #lo(L) 113#define R_PPC_PLT16_HI 30 // #hi(L) 114#define R_PPC_PLT16_HA 31 // #ha(L) 115#define R_PPC_SDAREL16 32 // S + A - _SDA_BASE_ 116#define R_PPC_SECTOFF 33 // R + A 117#define R_PPC_SECTOFF_LO 34 // #lo(R + A) 118#define R_PPC_SECTOFF_HI 35 // #lo(R + A) 119#define R_PPC_SECTOFF_HA 36 // #ha(R + A) 120#define R_PPC_ADDR30 37 // (S + A - P) >> 2 121/* PPC64 relocations */ 122#define R_PPC_ADDR64 38 // S + A 123#define R_PPC_ADDR16_HIGHER 39 // #higher(S + A) 124#define R_PPC_ADDR16_HIGHERA 40 // #highera(S + A) 125#define R_PPC_ADDR16_HIGHEST 41 // #highest(S + A) 126#define R_PPC_ADDR16_HIGHESTA 42 // #highesta(S + A) 127#define R_PPC_UADDR64 43 // S + A 128#define R_PPC_REL64 44 // S + A - P 129#define R_PPC_PLT64 45 // L 130#define R_PPC_PLTREL4 46 // L - P 131#define R_PPC_TOC16 47 // S + A - .TOC. 132#define R_PPC_TOC16_LO 48 // #lo(S + A - .TOC.) 133#define R_PPC_TOC16_HI 49 // #lo(S + A - .TOC.) 134#define R_PPC_TOC16_HA 50 // #ha(S + A - .TOC.) 135#define R_PPC_TOC 51 // .TOC. 136#define R_PPC_PLTGOT16 52 // M 137#define R_PPC_PLTGOT16_LO 53 // #lo(M) 138#define R_PPC_PLTGOT16_HI 54 // #lo(M) 139#define R_PPC_PLTGOT16_HA 55 // #ha(M) 140#define R_PPC_ADDR16_DS 56 // (S + A) >> 2 141#define R_PPC_ADDR16_LO_DS 57 // #lo(S + A) >> 2 142#define R_PPC_GOT16_DS 58 // G >> 2 143#define R_PPC_GOT16_LO_DS 59 // #lo(G) >> 2 144#define R_PPC_PLT16_LO_DS 60 // #lo(L) >> 2 145#define R_PPC_SECTOFF16_DS 61 // (R + A) >> 2 146#define R_PPC_SECTOFF16_LO_DS 62 // #lo(R + A) >> 2 147#define R_PPC_TOC16_DS 63 // (S + A - .TOC.) >> 2 148#define R_PPC_TOC16_LO_DS 64 // #lo(S + A - .TOC.) >> 2 149#define R_PPC_PLTGOT16_DS 65 // M >> 2 150#define R_PPC_PLTGOT16_LO_DS 66 // #lo(M) >> 2 151 152/* TLS relocations */ 153#define R_PPC_TLS 67 // none 154 155#define R_PPC_DTPMOD 68 156#define R_PPC_TPREL16 69 // @tprel 157#define R_PPC_TPREL16_LO 70 // #lo(@tprel) 158#define R_PPC_TPREL16_HI 71 // #hi(@tprel) 159#define R_PPC_TPREL16_HA 72 // #ha(@tprel) 160#define R_PPC_TPREL 73 // @tprel 161#define R_PPC_DTPREL16 74 // @got@dtprel 162#define R_PPC_DTPREL16_LO 75 // #lo(@dtprel) 163#define R_PPC_DTPREL16_HI 76 // #hi(@dtprel) 164#define R_PPC_DTPREL16_HA 77 // #ha(@dtprel) 165#define R_PPC_DTPREL 78 // @dtprel 166 167#define R_PPC_GOT_TLSGD16 79 // @got@tlsgd 168#define R_PPC_GOT_TLSGD16_LO 80 // #lo(@got@tlsgd) 169#define R_PPC_GOT_TLSGD16_HI 81 // #hi(@got@tlsgd) 170#define R_PPC_GOT_TLSGD16_HA 82 // #ha(@got@tlsgd) 171#define R_PPC_GOT_TLSLD16 83 // @got@tlsld 172#define R_PPC_GOT_TLSLD16_LO 84 // #lo(@got@tlsld) 173#define R_PPC_GOT_TLSLD16_HI 85 // #hi(@got@tlsld) 174#define R_PPC_GOT_TLSLD16_HA 86 // #ha(@got@tlsld) 175 176#define R_PPC_GOT_TPREL16 87 // @got@tprel 177#define R_PPC_GOT_TPREL16_LO 88 // #lo(@got@tprel) 178#define R_PPC_GOT_TPREL16_HI 89 // #hi(@got@tprel) 179#define R_PPC_GOT_TPREL16_HA 90 // #ha(@got@tprel) 180#define R_PPC_GOT_DTPREL16 91 // @got@dtprel 181#define R_PPC_GOT_DTPREL16_LO 92 // #lo(@got@dtprel) 182#define R_PPC_GOT_DTPREL16_HI 93 // #hi(@got@dtprel) 183#define R_PPC_GOT_DTPREL16_HA 94 // #ha(@got@dtprel) 184#define R_PPC_TLSGD 95 185#define R_PPC_TLSLD 96 186 187/* PPC64 relocations */ 188#define R_PPC_TPREL16_DS 95 // @tprel 189#define R_PPC_TPREL16_LO_DS 96 // #lo(@tprel) 190#define R_PPC_TPREL16_HIGHER 97 // #higher(@tprel) 191#define R_PPC_TPREL16_HIGHERA 98 // #highera(@tprel) 192#define R_PPC_TPREL16_HIGHEST 99 // #highest(@tprel) 193#define R_PPC_TPREL16_HIGHESTA 100 // #highesta(@tprel) 194 195#define R_PPC_DTPREL16_DS 101 // @dtprel 196#define R_PPC_DTPREL16_LO_DS 102 // #lo(@dtprel) 197#define R_PPC_DTPREL16_HIGHER 103 // #higher(@dtprel) 198#define R_PPC_DTPREL16_HIGHERA 104 // #highera(@dtprel) 199#define R_PPC_DTPREL16_HIGHEST 105 // #highest(@dtprel) 200#define R_PPC_DTPREL16_HIGHESTA 106 // #highesta(@dtprel) 201 202/* Indirect-function support */ 203#define R_PPC_IRELATIVE 248 204 205/* Used for the secure-plt PIC code sequences */ 206#define R_PPC_REL16 249 // S + A - P 207#define R_PPC_REL16_LO 250 // #lo(S + A - P) 208#define R_PPC_REL16_HI 251 // #hi(S + A - P) 209#define R_PPC_REL16_HA 252 // #ha(S + A - P) 210 211#define R_TYPE(name) __CONCAT(R_PPC_,name) 212 213#endif /* _POWERPC_ELF_MACHDEP_H_ */ 214