#ifdef TARGET_DEFS_ONLY #define EM_TCC_TARGET EM_AARCH64 #define R_DATA_32 R_AARCH64_ABS32 #define R_DATA_PTR R_AARCH64_ABS64 #define R_JMP_SLOT R_AARCH64_JUMP_SLOT #define R_GLOB_DAT R_AARCH64_GLOB_DAT #define R_COPY R_AARCH64_COPY #define R_NUM R_AARCH64_NUM #define ELF_START_ADDR 0x00400000 #define ELF_PAGE_SIZE 0x1000 #define HAVE_SECTION_RELOC #define PCRELATIVE_DLLPLT 1 #else /* !TARGET_DEFS_ONLY */ #include "tcc.h" ST_DATA struct reloc_info relocs_info[R_NUM] = { INIT_RELOC_INFO (R_AARCH64_ABS32, 0, NO_GOTPLT_ENTRY, 0) INIT_RELOC_INFO (R_AARCH64_ABS64, 0, NO_GOTPLT_ENTRY, 0) INIT_RELOC_INFO (R_AARCH64_MOVW_UABS_G0_NC, 0, NO_GOTPLT_ENTRY, 0) INIT_RELOC_INFO (R_AARCH64_MOVW_UABS_G1_NC, 0, NO_GOTPLT_ENTRY, 0) INIT_RELOC_INFO (R_AARCH64_MOVW_UABS_G2_NC, 0, NO_GOTPLT_ENTRY, 0) INIT_RELOC_INFO (R_AARCH64_MOVW_UABS_G3, 0, NO_GOTPLT_ENTRY, 0) INIT_RELOC_INFO (R_AARCH64_ADR_PREL_PG_HI21, 0, NO_GOTPLT_ENTRY, 0) INIT_RELOC_INFO (R_AARCH64_ADD_ABS_LO12_NC, 0, NO_GOTPLT_ENTRY, 0) INIT_RELOC_INFO (R_AARCH64_JUMP26, 1, AUTO_GOTPLT_ENTRY, 1) INIT_RELOC_INFO (R_AARCH64_CALL26, 1, AUTO_GOTPLT_ENTRY, 1) INIT_RELOC_INFO (R_AARCH64_ADR_GOT_PAGE, 0, ALWAYS_GOTPLT_ENTRY, 0) INIT_RELOC_INFO (R_AARCH64_LD64_GOT_LO12_NC, 0, ALWAYS_GOTPLT_ENTRY, 0) INIT_RELOC_INFO (R_AARCH64_GLOB_DAT, 0, NO_GOTPLT_ENTRY, 0) INIT_RELOC_INFO (R_AARCH64_JUMP_SLOT, 1, NO_GOTPLT_ENTRY, 0) }; void relocate_init(Section *sr) {} void relocate(TCCState *s1, ElfW_Rel *rel, int type, char *ptr, addr_t addr, addr_t val) { int sym_index = ELFW(R_SYM)(rel->r_info); #ifdef DEBUG_RELOC ElfW(Sym) *sym = &((ElfW(Sym) *)symtab_section->data)[sym_index]; #endif switch(type) { case R_AARCH64_ABS64: write64le(ptr, val); return; case R_AARCH64_ABS32: write32le(ptr, val); return; case R_AARCH64_MOVW_UABS_G0_NC: write32le(ptr, ((read32le(ptr) & 0xffe0001f) | (val & 0xffff) << 5)); return; case R_AARCH64_MOVW_UABS_G1_NC: write32le(ptr, ((read32le(ptr) & 0xffe0001f) | (val >> 16 & 0xffff) << 5)); return; case R_AARCH64_MOVW_UABS_G2_NC: write32le(ptr, ((read32le(ptr) & 0xffe0001f) | (val >> 32 & 0xffff) << 5)); return; case R_AARCH64_MOVW_UABS_G3: write32le(ptr, ((read32le(ptr) & 0xffe0001f) | (val >> 48 & 0xffff) << 5)); return; case R_AARCH64_ADR_PREL_PG_HI21: { uint64_t off = (val >> 12) - (addr >> 12); if ((off + ((uint64_t)1 << 20)) >> 21) tcc_error("R_AARCH64_ADR_PREL_PG_HI21 relocation failed"); write32le(ptr, ((read32le(ptr) & 0x9f00001f) | (off & 0x1ffffc) << 3 | (off & 3) << 29)); return; } case R_AARCH64_ADD_ABS_LO12_NC: write32le(ptr, ((read32le(ptr) & 0xffc003ff) | (val & 0xfff) << 10)); return; case R_AARCH64_JUMP26: case R_AARCH64_CALL26: #ifdef DEBUG_RELOC printf ("reloc %d @ 0x%lx: val=0x%lx name=%s\n", type, addr, val, (char *) symtab_section->link->data + sym->st_name); #endif if (((val - addr) + ((uint64_t)1 << 27)) & ~(uint64_t)0xffffffc) tcc_error("R_AARCH64_(JUMP|CALL)26 relocation failed" " (val=%lx, addr=%lx)", val, addr); write32le(ptr, (0x14000000 | (uint32_t)(type == R_AARCH64_CALL26) << 31 | ((val - addr) >> 2 & 0x3ffffff))); return; case R_AARCH64_ADR_GOT_PAGE: { uint64_t off = (((s1->got->sh_addr + s1->sym_attrs[sym_index].got_offset) >> 12) - (addr >> 12)); if ((off + ((uint64_t)1 << 20)) >> 21) tcc_error("R_AARCH64_ADR_GOT_PAGE relocation failed"); write32le(ptr, ((read32le(ptr) & 0x9f00001f) | (off & 0x1ffffc) << 3 | (off & 3) << 29)); return; } case R_AARCH64_LD64_GOT_LO12_NC: write32le(ptr, ((read32le(ptr) & 0xfff803ff) | ((s1->got->sh_addr + s1->sym_attrs[sym_index].got_offset) & 0xff8) << 7)); return; case R_AARCH64_COPY: return; case R_AARCH64_GLOB_DAT: case R_AARCH64_JUMP_SLOT: /* They don't need addend */ #ifdef DEBUG_RELOC printf ("reloc %d @ 0x%lx: val=0x%lx name=%s\n", type, addr, val - rel->r_addend, (char *) symtab_section->link->data + sym->st_name); #endif write64le(ptr, val - rel->r_addend); return; default: fprintf(stderr, "FIXME: handle reloc type %x at %x [%p] to %x\n", type, (unsigned)addr, ptr, (unsigned)val); return; } } #endif /* !TARGET_DEFS_ONLY */