diff options
Diffstat (limited to 'bfd/coff64-rs6000.c')
| -rw-r--r-- | bfd/coff64-rs6000.c | 150 |
1 files changed, 110 insertions, 40 deletions
diff --git a/bfd/coff64-rs6000.c b/bfd/coff64-rs6000.c index d66a70e..288f620 100644 --- a/bfd/coff64-rs6000.c +++ b/bfd/coff64-rs6000.c @@ -144,8 +144,7 @@ static bfd_vma xcoff64_loader_symbol_offset static bfd_vma xcoff64_loader_reloc_offset PARAMS ((bfd *, struct internal_ldhdr *)); static boolean xcoff64_generate_rtinit - PARAMS((bfd *, const char *, const char *)); - + PARAMS((bfd *, const char *, const char *, boolean)); /* coffcode.h needs these to be defined */ /* Internalcoff.h and coffcode.h modify themselves based on these flags. */ @@ -171,8 +170,9 @@ static boolean xcoff64_generate_rtinit #define coff_bfd_is_local_label_name _bfd_xcoff_is_local_label_name #define coff_bfd_reloc_type_lookup xcoff64_reloc_type_lookup #ifdef AIX_CORE -extern const bfd_target * rs6000coff_core_p (); -extern boolean rs6000coff_core_file_matches_executable_p (); +extern const bfd_target * rs6000coff_core_p PARAMS ((bfd *abfd)); +extern boolean rs6000coff_core_file_matches_executable_p + PARAMS((bfd *cbfd, bfd *ebfd)); extern char *rs6000coff_core_file_failing_command PARAMS ((bfd *abfd)); extern int rs6000coff_core_file_failing_signal PARAMS ((bfd *abfd)); #define CORE_FILE_P rs6000coff_core_p @@ -2098,15 +2098,16 @@ xcoff64_loader_reloc_offset (abfd, ldhdr) } static boolean -xcoff64_generate_rtinit (abfd, init, fini) +xcoff64_generate_rtinit (abfd, init, fini, rtld) bfd *abfd; const char *init; const char *fini; + boolean rtld; { bfd_byte filehdr_ext[FILHSZ]; - bfd_byte scnhdr_ext[SCNHSZ]; - bfd_byte syment_ext[SYMESZ * 8]; - bfd_byte reloc_ext[RELSZ * 2]; + bfd_byte scnhdr_ext[SCNHSZ * 3]; + bfd_byte syment_ext[SYMESZ * 10]; + bfd_byte reloc_ext[RELSZ * 3]; bfd_byte *data_buffer; bfd_size_type data_buffer_size; bfd_byte *string_table, *st_tmp; @@ -2114,16 +2115,20 @@ xcoff64_generate_rtinit (abfd, init, fini) bfd_vma val; size_t initsz, finisz; struct internal_filehdr filehdr; - struct internal_scnhdr scnhdr; + struct internal_scnhdr text_scnhdr; + struct internal_scnhdr data_scnhdr; + struct internal_scnhdr bss_scnhdr; struct internal_syment syment; union internal_auxent auxent; struct internal_reloc reloc; + char *text_name = ".text"; char *data_name = ".data"; + char *bss_name = ".bss"; char *rtinit_name = "__rtinit"; + char *rtld_name = "__rtld"; - if (! bfd_xcoff_rtinit_size (abfd) - || (init == NULL && fini == NULL)) + if (! bfd_xcoff_rtinit_size (abfd)) return false; initsz = (init == NULL ? 0 : 1 + strlen (init)); @@ -2133,26 +2138,54 @@ xcoff64_generate_rtinit (abfd, init, fini) memset (filehdr_ext, 0, FILHSZ); memset (&filehdr, 0, sizeof (struct internal_filehdr)); filehdr.f_magic = bfd_xcoff_magic_number (abfd); - filehdr.f_nscns = 1; + filehdr.f_nscns = 3; filehdr.f_timdat = 0; filehdr.f_nsyms = 0; /* at least 6, no more than 8 */ filehdr.f_symptr = 0; /* set below */ filehdr.f_opthdr = 0; filehdr.f_flags = 0; - /* section header */ - memset (scnhdr_ext, 0, SCNHSZ); - memset (&scnhdr, 0, sizeof (struct internal_scnhdr)); - memcpy (scnhdr.s_name, data_name, strlen (data_name)); - scnhdr.s_paddr = 0; - scnhdr.s_vaddr = 0; - scnhdr.s_size = 0; /* set below */ - scnhdr.s_scnptr = FILHSZ + SCNHSZ; - scnhdr.s_relptr = 0; /* set below */ - scnhdr.s_lnnoptr = 0; - scnhdr.s_nreloc = 0; /* either 1 or 2 */ - scnhdr.s_nlnno = 0; - scnhdr.s_flags = STYP_DATA; + /* section headers */ + memset (scnhdr_ext, 0, 3 * SCNHSZ); + + /* text */ + memset (&text_scnhdr, 0, sizeof (struct internal_scnhdr)); + memcpy (text_scnhdr.s_name, text_name, strlen (text_name)); + text_scnhdr.s_paddr = 0; + text_scnhdr.s_vaddr = 0; + text_scnhdr.s_size = 0; + text_scnhdr.s_scnptr = 0; + text_scnhdr.s_relptr = 0; + text_scnhdr.s_lnnoptr = 0; + text_scnhdr.s_nreloc = 0; + text_scnhdr.s_nlnno = 0; + text_scnhdr.s_flags = STYP_TEXT; + + /* data */ + memset (&data_scnhdr, 0, sizeof (struct internal_scnhdr)); + memcpy (data_scnhdr.s_name, data_name, strlen (data_name)); + data_scnhdr.s_paddr = 0; + data_scnhdr.s_vaddr = 0; + data_scnhdr.s_size = 0; /* set below */ + data_scnhdr.s_scnptr = FILHSZ + 3 * SCNHSZ; + data_scnhdr.s_relptr = 0; /* set below */ + data_scnhdr.s_lnnoptr = 0; + data_scnhdr.s_nreloc = 0; /* either 1 or 2 */ + data_scnhdr.s_nlnno = 0; + data_scnhdr.s_flags = STYP_DATA; + + /* bss */ + memset (&bss_scnhdr, 0, sizeof (struct internal_scnhdr)); + memcpy (bss_scnhdr.s_name, bss_name, strlen (bss_name)); + bss_scnhdr.s_paddr = 0; /* set below */ + bss_scnhdr.s_vaddr = 0; /* set below */ + bss_scnhdr.s_size = 0; /* set below */ + bss_scnhdr.s_scnptr = 0; + bss_scnhdr.s_relptr = 0; + bss_scnhdr.s_lnnoptr = 0; + bss_scnhdr.s_nreloc = 0; + bss_scnhdr.s_nlnno = 0; + bss_scnhdr.s_flags = STYP_BSS; /* .data 0x0000 0x00000000 : rtl @@ -2209,7 +2242,8 @@ xcoff64_generate_rtinit (abfd, init, fini) val = 0x10; bfd_put_32 (abfd, val, &data_buffer[0x10]); - scnhdr.s_size = data_buffer_size; + data_scnhdr.s_size = data_buffer_size; + bss_scnhdr.s_paddr = bss_scnhdr.s_vaddr = data_scnhdr.s_size; /* string table */ string_table_size = 4; @@ -2217,6 +2251,8 @@ xcoff64_generate_rtinit (abfd, init, fini) string_table_size += strlen (rtinit_name) + 1; string_table_size += initsz; string_table_size += finisz; + if (true == rtld) + string_table_size += strlen (rtld_name) + 1; string_table = (bfd_byte *)bfd_malloc (string_table_size); memset (string_table, 0, string_table_size); @@ -2228,9 +2264,10 @@ xcoff64_generate_rtinit (abfd, init, fini) 0. .data csect 2. __rtinit 4. init function - 6. fini function */ - memset (syment_ext, 0, 8 * SYMESZ); - memset (reloc_ext, 0, 2 * RELSZ); + 6. fini function + 8. __rtld */ + memset (syment_ext, 0, 10 * SYMESZ); + memset (reloc_ext, 0, 3 * RELSZ); /* .data csect */ memset (&syment, 0, sizeof (struct internal_syment)); @@ -2240,7 +2277,7 @@ xcoff64_generate_rtinit (abfd, init, fini) memcpy (st_tmp, data_name, strlen (data_name)); st_tmp += strlen (data_name) + 1; - syment.n_scnum = 1; + syment.n_scnum = 2; syment.n_sclass = C_HIDEXT; syment.n_numaux = 1; auxent.x_csect.x_scnlen.l = data_buffer_size; @@ -2260,7 +2297,7 @@ xcoff64_generate_rtinit (abfd, init, fini) memcpy (st_tmp, rtinit_name, strlen (rtinit_name)); st_tmp += strlen (rtinit_name) + 1; - syment.n_scnum = 1; + syment.n_scnum = 2; syment.n_sclass = C_EXT; syment.n_numaux = 1; auxent.x_csect.x_smtyp = XTY_LD; @@ -2298,7 +2335,7 @@ xcoff64_generate_rtinit (abfd, init, fini) bfd_coff_swap_reloc_out (abfd, &reloc, &reloc_ext[0]); filehdr.f_nsyms += 2; - scnhdr.s_nreloc += 1; + data_scnhdr.s_nreloc += 1; } /* finit */ @@ -2326,21 +2363,55 @@ xcoff64_generate_rtinit (abfd, init, fini) reloc.r_type = R_POS; reloc.r_size = 63; bfd_coff_swap_reloc_out (abfd, &reloc, - &reloc_ext[scnhdr.s_nreloc * RELSZ]); + &reloc_ext[data_scnhdr.s_nreloc * RELSZ]); filehdr.f_nsyms += 2; - scnhdr.s_nreloc += 1; + data_scnhdr.s_nreloc += 1; } - scnhdr.s_relptr = scnhdr.s_scnptr + data_buffer_size; - filehdr.f_symptr = scnhdr.s_relptr + scnhdr.s_nreloc * RELSZ; + if (rtld) + { + memset (&syment, 0, sizeof (struct internal_syment)); + memset (&auxent, 0, sizeof (union internal_auxent)); + + syment._n._n_n._n_offset = st_tmp - string_table; + memcpy (st_tmp, rtld_name, strlen (rtld_name)); + st_tmp += strlen (rtld_name) + 1; + + syment.n_sclass = C_EXT; + syment.n_numaux = 1; + bfd_coff_swap_sym_out (abfd, &syment, + &syment_ext[filehdr.f_nsyms * SYMESZ]); + bfd_coff_swap_aux_out (abfd, &auxent, syment.n_type, syment.n_sclass, 0, + syment.n_numaux, + &syment_ext[(filehdr.f_nsyms + 1) * SYMESZ]); + + /* reloc */ + memset (&reloc, 0, sizeof (struct internal_reloc)); + reloc.r_vaddr = 0x0000; + reloc.r_symndx = filehdr.f_nsyms; + reloc.r_type = R_POS; + reloc.r_size = 63; + bfd_coff_swap_reloc_out (abfd, &reloc, + &reloc_ext[data_scnhdr.s_nreloc * RELSZ]); + + filehdr.f_nsyms += 2; + data_scnhdr.s_nreloc += 1; + + bss_scnhdr.s_size = 0; + } + + data_scnhdr.s_relptr = data_scnhdr.s_scnptr + data_buffer_size; + filehdr.f_symptr = data_scnhdr.s_relptr + data_scnhdr.s_nreloc * RELSZ; bfd_coff_swap_filehdr_out (abfd, &filehdr, filehdr_ext); bfd_bwrite (filehdr_ext, FILHSZ, abfd); - bfd_coff_swap_scnhdr_out (abfd, &scnhdr, scnhdr_ext); - bfd_bwrite (scnhdr_ext, SCNHSZ, abfd); + bfd_coff_swap_scnhdr_out (abfd, &text_scnhdr, &scnhdr_ext[SCNHSZ * 0]); + bfd_coff_swap_scnhdr_out (abfd, &data_scnhdr, &scnhdr_ext[SCNHSZ * 1]); + bfd_coff_swap_scnhdr_out (abfd, &bss_scnhdr, &scnhdr_ext[SCNHSZ * 2]); + bfd_bwrite (scnhdr_ext, 3 * SCNHSZ, abfd); bfd_bwrite (data_buffer, data_buffer_size, abfd); - bfd_bwrite (reloc_ext, scnhdr.s_nreloc * RELSZ, abfd); + bfd_bwrite (reloc_ext, data_scnhdr.s_nreloc * RELSZ, abfd); bfd_bwrite (syment_ext, filehdr.f_nsyms * SYMESZ, abfd); bfd_bwrite (string_table, string_table_size, abfd); @@ -2478,7 +2549,6 @@ static const struct xcoff_backend_data_rec bfd_xcoff_backend_data = /* rtinit */ 88, /* _xcoff_rtinit_size */ xcoff64_generate_rtinit, /* _xcoff_generate_rtinit */ - }; /* The transfer vector that leads the outside world to all of the above. */ |