diff options
Diffstat (limited to 'dyngen.c')
| -rw-r--r-- | dyngen.c | 86 |
1 files changed, 43 insertions, 43 deletions
@@ -375,7 +375,7 @@ int elf_must_swap(struct elfhdr *h) return (h->e_ident[EI_DATA] == ELFDATA2MSB) != (swaptest.b[0] == 0); } - + void elf_swap_ehdr(struct elfhdr *h) { swab16s(&h->e_type); /* Object file type */ @@ -483,11 +483,11 @@ int load_object(const char *filename) ElfW(Sym) *sym; char *shstr; ELF_RELOC *rel; - + fd = open(filename, O_RDONLY); if (fd < 0) error("can't open file '%s'", filename); - + /* Read ELF header. */ if (read(fd, &ehdr, sizeof (ehdr)) != sizeof (ehdr)) error("unable to read file header"); @@ -524,7 +524,7 @@ int load_object(const char *filename) /* read all section data */ sdata = malloc(sizeof(void *) * ehdr.e_shnum); memset(sdata, 0, sizeof(void *) * ehdr.e_shnum); - + for(i = 0;i < ehdr.e_shnum; i++) { sec = &shdr[i]; if (sec->sh_type != SHT_NOBITS) @@ -569,7 +569,7 @@ int load_object(const char *filename) symtab = (ElfW(Sym) *)sdata[symtab_sec - shdr]; strtab = (char *)sdata[symtab_sec->sh_link]; - + nb_syms = symtab_sec->sh_size / sizeof(ElfW(Sym)); if (do_swap) { for(i = 0, sym = symtab; i < nb_syms; i++, sym++) { @@ -609,7 +609,7 @@ void sym_ent_name(struct external_syment *ext_sym, EXE_SYM *sym) { char *q; int c, i, len; - + if (ext_sym->e.e.e_zeroes != 0) { q = sym->st_name; for(i = 0; i < 8; i++) { @@ -643,7 +643,7 @@ char *name_for_dotdata(struct coff_rel *rel) if (sym->st_syment->e_scnum == data_shndx && text_data >= sym->st_value && text_data < sym->st_value + sym->st_size) { - + return sym->st_name; } @@ -709,7 +709,7 @@ int load_object(const char *filename) ); if (fd < 0) error("can't open file '%s'", filename); - + /* Read COFF header. */ if (read(fd, &fhdr, sizeof (fhdr)) != sizeof (fhdr)) error("unable to read file header"); @@ -726,7 +726,7 @@ int load_object(const char *filename) /* read all section data */ sdata = malloc(sizeof(void *) * fhdr.f_nscns); memset(sdata, 0, sizeof(void *) * fhdr.f_nscns); - + const char *p; for(i = 0;i < fhdr.f_nscns; i++) { sec = &shdr[i]; @@ -747,7 +747,7 @@ int load_object(const char *filename) if (!data_sec) error("could not find .data section"); coff_data_shndx = data_sec - shdr; - + coff_symtab = load_data(fd, fhdr.f_symptr, fhdr.f_nsyms*SYMESZ); for (i = 0, ext_sym = coff_symtab; i < nb_syms; i++, ext_sym++) { for(i=0;i<8;i++) @@ -758,7 +758,7 @@ int load_object(const char *filename) n_strtab = load_data(fd, (fhdr.f_symptr + fhdr.f_nsyms*SYMESZ), STRTAB_SIZE); strtab = load_data(fd, (fhdr.f_symptr + fhdr.f_nsyms*SYMESZ), *n_strtab); - + nb_syms = fhdr.f_nsyms; for (i = 0, ext_sym = coff_symtab; i < nb_syms; i++, ext_sym++) { @@ -805,12 +805,12 @@ int load_object(const char *filename) } else { sym->st_size = 0; } - + sym->st_type = ext_sym->e_type; sym->st_shndx = ext_sym->e_scnum; } - + /* find text relocations, if any */ sec = &shdr[coff_text_shndx]; coff_relocs = load_data(fd, sec->s_relptr, sec->s_nreloc*RELSZ); @@ -870,7 +870,7 @@ static char *get_sym_name(EXE_SYM *sym) if ( sym->n_type & N_STAB ) /* Debug symbols are ignored */ return "debug"; - + if(!name) return name; if(name[0]=='_') @@ -953,23 +953,23 @@ static const char * find_reloc_name_in_sec_ptr(int address, struct section * sec { unsigned int tocindex, symindex, size; const char *name = 0; - + /* Sanity check */ if(!( address >= sec_hdr->addr && address < (sec_hdr->addr + sec_hdr->size) ) ) return (char*)0; - + if( sec_hdr->flags & S_SYMBOL_STUBS ){ size = sec_hdr->reserved2; if(size == 0) error("size = 0"); - + } else if( sec_hdr->flags & S_LAZY_SYMBOL_POINTERS || sec_hdr->flags & S_NON_LAZY_SYMBOL_POINTERS) size = sizeof(unsigned long); else return 0; - + /* Compute our index in toc */ tocindex = (address - sec_hdr->addr)/size; symindex = tocdylib[sec_hdr->reserved1 + tocindex]; @@ -1015,7 +1015,7 @@ static const char * get_reloc_name(EXE_RELOC * rel, int * sslide) /* Intruction contains an offset to the symbols pointed to, in the rel->r_symbolnum section */ sectoffset = *(uint32_t *)(text + rel->r_address) & 0xffff; - + if(sectnum==0xffffff) return 0; @@ -1041,7 +1041,7 @@ static const char * get_reloc_name(EXE_RELOC * rel, int * sslide) if(rel->r_pcrel) sectoffset += rel->r_address; - + if (rel->r_type == PPC_RELOC_BR24) name = (char *)find_reloc_name_in_sec_ptr((int)sectoffset, §ion_hdr[sectnum-1]); @@ -1080,11 +1080,11 @@ int load_object(const char *filename) unsigned int i, j; EXE_SYM *sym; struct nlist *syment; - + fd = open(filename, O_RDONLY); if (fd < 0) error("can't open file '%s'", filename); - + /* Read Mach header. */ if (read(fd, &mach_hdr, sizeof (mach_hdr)) != sizeof (mach_hdr)) error("unable to read file header"); @@ -1093,13 +1093,13 @@ int load_object(const char *filename) if (!check_mach_header(mach_hdr)) { error("bad Mach header"); } - + if (mach_hdr.cputype != CPU_TYPE_POWERPC) error("Unsupported CPU"); - + if (mach_hdr.filetype != MH_OBJECT) error("Unsupported Mach Object"); - + /* read segment headers */ for(i=0, j=sizeof(mach_hdr); i<mach_hdr.ncmds ; i++) { @@ -1143,7 +1143,7 @@ int load_object(const char *filename) /* read all section data */ sdata = (uint8_t **)malloc(sizeof(void *) * segment->nsects); memset(sdata, 0, sizeof(void *) * segment->nsects); - + /* Load the data in section data */ for(i = 0; i < segment->nsects; i++) { sdata[i] = load_data(fd, section_hdr[i].offset, section_hdr[i].size); @@ -1159,10 +1159,10 @@ int load_object(const char *filename) /* Make sure dysym was loaded */ if(!(int)dysymtabcmd) error("could not find __DYSYMTAB segment"); - + /* read the table of content of the indirect sym */ tocdylib = load_data( fd, dysymtabcmd->indirectsymoff, dysymtabcmd->nindirectsyms * sizeof(uint32_t) ); - + /* Make sure symtab was loaded */ if(!(int)symtabcmd) error("could not find __SYMTAB segment"); @@ -1178,12 +1178,12 @@ int load_object(const char *filename) struct nlist *sym_follow, *sym_next = 0; unsigned int j; memset(sym, 0, sizeof(*sym)); - + if ( syment->n_type & N_STAB ) /* Debug symbols are skipped */ continue; - + memcpy(sym, syment, sizeof(*syment)); - + /* Find the following symbol in order to get the current symbol size */ for(j = 0, sym_follow = symtab_std; j < nb_syms; j++, sym_follow++) { if ( sym_follow->n_sect != 1 || sym_follow->n_type & N_STAB || !(sym_follow->n_value > sym->st_value)) @@ -1286,9 +1286,9 @@ int arm_emit_ldr_info(const char *name, unsigned long start_offset, uint8_t data_allocated[1024]; unsigned int data_index; int type; - + memset(data_allocated, 0, sizeof(data_allocated)); - + p = p_start; min_offset = p_end - p_start; spare = 0x7fffffff; @@ -1478,7 +1478,7 @@ void gen_code(const char *name, host_ulong offset, host_ulong size, } copy_size = len; } -#endif +#endif #elif defined(HOST_PPC) { uint8_t *p; @@ -1510,7 +1510,7 @@ void gen_code(const char *name, host_ulong offset, host_ulong size, #endif if (get32((uint32_t *)p) != 0x6bfa8001) error("ret expected at the end of %s", name); - copy_size = p - p_start; + copy_size = p - p_start; } #elif defined(HOST_IA64) { @@ -1611,14 +1611,14 @@ void gen_code(const char *name, host_ulong offset, host_ulong size, } else { error("No save at the beginning of %s", name); } - + /* Skip a preceeding nop, if present. */ if (p > p_start) { skip_insn = get32((uint32_t *)(p - 0x4)); if (skip_insn == 0x01000000) p -= 4; } - + copy_size = p - p_start; } #elif defined(HOST_ARM) @@ -1700,7 +1700,7 @@ void gen_code(const char *name, host_ulong offset, host_ulong size, } } } - + nb_args = 0; while (nb_args < MAX_ARGS && args_present[nb_args]) nb_args++; @@ -1784,7 +1784,7 @@ void gen_code(const char *name, host_ulong offset, host_ulong size, if (strstart(sym_name, "__op_label", &p)) { uint8_t *ptr; unsigned long offset; - + /* test if the variable refers to a label inside the code we are generating */ #ifdef CONFIG_FORMAT_COFF @@ -1828,7 +1828,7 @@ void gen_code(const char *name, host_ulong offset, host_ulong size, } } } -#endif +#endif if (val >= start_offset && val <= start_offset + copy_size) { n = strtol(p, NULL, 10); fprintf(outfile, " label_offsets[%d] = %ld + (gen_code_ptr - gen_code_buf);\n", n, (long)(val - start_offset)); @@ -1973,7 +1973,7 @@ void gen_code(const char *name, host_ulong offset, host_ulong size, n, reloc_offset); continue; } - + get_reloc_expr(relname, sizeof(relname), sym_name); type = ELF32_R_TYPE(rel->r_info); addend = rel->r_addend; @@ -2652,7 +2652,7 @@ int gen_file(FILE *outfile, int out_type) gen_code(name, sym->st_value, sym->st_size, outfile, 0); } } - + } else { /* generate big code generation switch */ @@ -2695,7 +2695,7 @@ fprintf(outfile, eliminating the neeed to jump around the pool. We currently generate: - + [ For this example we assume merging would move op1_pool out of range. In practice we should be able to combine many ops before the offset limits are reached. ] |