diff options
Diffstat (limited to 'bfd/bfd.c')
| -rw-r--r-- | bfd/bfd.c | 30 |
1 files changed, 21 insertions, 9 deletions
@@ -1998,8 +1998,16 @@ bfd_update_compression_header (bfd *abfd, bfd_byte *contents, } } else - /* Clear the SHF_COMPRESSED bit. */ - elf_section_flags (sec) &= ~SHF_COMPRESSED; + { + /* Clear the SHF_COMPRESSED bit. */ + elf_section_flags (sec) &= ~SHF_COMPRESSED; + + /* Write the zlib header. It should be "ZLIB" followed by + the uncompressed section size, 8 bytes in big-endian + order. */ + memcpy (contents, "ZLIB", 4); + bfd_putb64 (sec->size, contents + 4); + } } } else @@ -2013,11 +2021,12 @@ bfd_update_compression_header (bfd *abfd, bfd_byte *contents, SYNOPSIS bfd_boolean bfd_check_compression_header (bfd *abfd, bfd_byte *contents, asection *sec, - bfd_size_type uncompressed_size); + bfd_size_type *uncompressed_size); DESCRIPTION - Check the compression header at CONTENTS of SEC in ABFD with - the uncompressed size UNCOMPRESSED_SIZE. + Check the compression header at CONTENTS of SEC in ABFD and + store the uncompressed size in UNCOMPRESSED_SIZE if the + compression header is valid. RETURNS Return TRUE if the compression header is valid. @@ -2026,7 +2035,7 @@ RETURNS bfd_boolean bfd_check_compression_header (bfd *abfd, bfd_byte *contents, asection *sec, - bfd_size_type uncompressed_size) + bfd_size_type *uncompressed_size) { if (bfd_get_flavour (abfd) == bfd_target_elf_flavour && (elf_section_flags (sec) & SHF_COMPRESSED) != 0) @@ -2047,9 +2056,12 @@ bfd_check_compression_header (bfd *abfd, bfd_byte *contents, chdr.ch_size = bfd_get_64 (abfd, &echdr->ch_size); chdr.ch_addralign = bfd_get_64 (abfd, &echdr->ch_addralign); } - return (chdr.ch_type == ELFCOMPRESS_ZLIB - && chdr.ch_size == uncompressed_size - && chdr.ch_addralign == 1U << sec->alignment_power); + if (chdr.ch_type == ELFCOMPRESS_ZLIB + && chdr.ch_addralign == 1U << sec->alignment_power) + { + *uncompressed_size = chdr.ch_size; + return TRUE; + } } return FALSE; |