From 6e7c73dd85bcb70f16a76d1d487664f1da4c345a Mon Sep 17 00:00:00 2001 From: Christopher Faylor Date: Wed, 29 May 2002 20:06:28 +0000 Subject: [PATCH] * peXXigen.c (pe_print_idata): Fix seg faults on printing import tables with auto-imported symbols. --- bfd/ChangeLog | 5 ++ bfd/peXXigen.c | 143 +++++++++++++++++++++++++++++---------------------------- 2 files changed, 77 insertions(+), 71 deletions(-) diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 551fafb..9051ee8 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,8 @@ +2002-05-29 Ralf Habacker + + * peXXigen.c (pe_print_idata): Fix seg faults on printing import tables + with auto-imported symbols. + 2002-05-29 Adam Nemet * elf32-arm.h (bfd_elf32_arm_get_bfd_for_interworking): Don't add glue diff --git a/bfd/peXXigen.c b/bfd/peXXigen.c index 22f2e3f..1573f62 100644 --- a/bfd/peXXigen.c +++ b/bfd/peXXigen.c @@ -1142,6 +1142,7 @@ pe_print_idata (abfd, vfile) adj = section->vma - extra->ImageBase; + /* print all image import descriptors */ for (i = 0; i < datasize; i += onaline) { bfd_vma hint_addr; @@ -1181,19 +1182,79 @@ pe_print_idata (abfd, vfile) if (hint_addr != 0) { + bfd_byte *ft_data; + asection *ft_section; + bfd_vma ft_addr; + bfd_size_type ft_datasize; + int ft_idx; + int differ = 0; + int ft_allocated = 0; + fprintf (file, _("\tvma: Hint/Ord Member-Name\n")); idx = hint_addr - adj; + ft_addr = first_thunk + extra->ImageBase; + ft_data = data; + ft_idx = first_thunk - adj; + ft_allocated = 0; + + if (first_thunk != hint_addr) + { + /* Find the section which contains the first thunk. */ + for (ft_section = abfd->sections; + ft_section != NULL; + ft_section = ft_section->next) + { + ft_datasize = bfd_section_size (abfd, ft_section); + if (ft_addr >= ft_section->vma + && ft_addr < ft_section->vma + ft_datasize) + break; + } + + if (ft_section == NULL) + { + fprintf (file, + _("\nThere is a first thunk, but the section containing it could not be found\n")); + continue; + } + + /* Now check to see if this section is the same as our current + section. If it is not then we will have to load its data in. */ + if (ft_section == section) + { + ft_data = data; + ft_idx = first_thunk - adj; + } + else + { + ft_idx = first_thunk - (ft_section->vma - extra->ImageBase); + ft_data = (bfd_byte *) bfd_malloc (datasize); + if (ft_data == NULL) + continue; + + /* Read datasize bfd_bytes starting at offset ft_idx. */ + if (! bfd_get_section_contents (abfd, ft_section, (PTR) ft_data, (bfd_vma) ft_idx, datasize)) + { + free (ft_data); + continue; + } + + ft_idx = 0; + ft_allocated = 1; + } + } + /* print HintName vector entries */ for (j = 0; j < datasize; j += 4) { unsigned long member = bfd_get_32 (abfd, data + idx + j); + /* print single IMAGE_IMPORT_BY_NAME vector */ if (member == 0) break; if (member & 0x80000000) fprintf (file, "\t%04lx\t %4lu", member, - member & 0x7fffffff); + member & 0x7fffffff); else { int ordinal; @@ -1204,73 +1265,15 @@ pe_print_idata (abfd, vfile) fprintf (file, "\t%04lx\t %4d %s", member, ordinal, member_name); } - + /* If the time stamp is not zero, the import address - table holds actual addresses. */ - if (time_stamp != 0 - && first_thunk != 0 - && first_thunk != hint_addr) + table holds actual addresses. */ + if (time_stamp != 0 && first_thunk != 0 && first_thunk != hint_addr) fprintf (file, "\t%04lx", - (long) bfd_get_32 (abfd, data + first_thunk - adj + j)); + (long) bfd_get_32 (abfd, ft_data + ft_idx + j)); fprintf (file, "\n"); } - } - - if (hint_addr != first_thunk && time_stamp == 0) - { - bfd_byte *ft_data; - asection *ft_section; - bfd_vma ft_addr; - bfd_size_type ft_datasize; - int ft_idx; - int differ = 0; - int ft_allocated = 0; - - ft_addr = first_thunk + extra->ImageBase; - - /* Find the section which contains the first thunk. */ - for (ft_section = abfd->sections; - ft_section != NULL; - ft_section = ft_section->next) - { - ft_datasize = bfd_section_size (abfd, ft_section); - if (ft_addr >= ft_section->vma - && ft_addr < ft_section->vma + ft_datasize) - break; - } - - if (ft_section == NULL) - { - fprintf (file, - _("\nThere is a first thunk, but the section containing it could not be found\n")); - continue; - } - - /* Now check to see if this section is the same as our current - section. If it is not then we will have to load its data in. */ - if (ft_section == section) - { - ft_data = data; - ft_idx = first_thunk - adj; - } - else - { - ft_idx = first_thunk - (ft_section->vma - extra->ImageBase); - ft_data = (bfd_byte *) bfd_malloc (datasize); - if (ft_data == NULL) - continue; - - /* Read datasize bfd_bytes starting at offset ft_idx. */ - if (! bfd_get_section_contents (abfd, ft_section, (PTR) ft_data, (bfd_vma) ft_idx, datasize)) - { - free (ft_data); - continue; - } - - ft_idx = 0; - ft_allocated = 1; - } for (j = 0; j < datasize; j += 4) { @@ -1299,14 +1302,13 @@ pe_print_idata (abfd, vfile) if (iat_member == 0) fprintf (file, _("\t>>> Ran out of IAT members!\n")); - else + + else if (hint_member != 0) { - ordinal = bfd_get_16 (abfd, data + iat_member - adj); - member_name = (char *) data + iat_member - adj + 2; + ordinal = bfd_get_16 (abfd, data + hint_member - adj); + member_name = (char *) data + hint_member - adj + 2; fprintf (file, "\t%04lx\t %4d %s\n", - (unsigned long) iat_member, - ordinal, - member_name); + (unsigned long) iat_member, ordinal, member_name); } } @@ -1315,8 +1317,7 @@ pe_print_idata (abfd, vfile) } if (differ == 0) - fprintf (file, - _("\tThe Import Address Table is identical\n")); + fprintf (file, _("\tThe Import Address Table is identical\n")); if (ft_allocated) free (ft_data); -- 2.7.4