diff options
Diffstat (limited to 'bfd/compress.c')
| -rw-r--r-- | bfd/compress.c | 51 |
1 files changed, 47 insertions, 4 deletions
diff --git a/bfd/compress.c b/bfd/compress.c index 770ea57..dfde50e 100644 --- a/bfd/compress.c +++ b/bfd/compress.c @@ -72,7 +72,8 @@ decompress_contents (bfd_byte *compressed_buffer, static bfd_size_type bfd_compress_section_contents (bfd *abfd, sec_ptr sec, bfd_byte *uncompressed_buffer, - bfd_size_type uncompressed_size) + bfd_size_type uncompressed_size, + bfd_boolean write_compress) { uLong compressed_size; bfd_byte *buffer; @@ -176,8 +177,11 @@ bfd_compress_section_contents (bfd *abfd, sec_ptr sec, compressed_size += header_size; /* PR binutils/18087: If compression didn't make the section smaller, - just keep it uncompressed. */ - if (compressed_size < uncompressed_size) + just keep it uncompressed. We always generate .zdebug_* section + when linking since section names have been finalized and they + can't be changed easily. */ + if ((write_compress && compression_header_size == 0) + || compressed_size < uncompressed_size) { bfd_update_compression_header (abfd, buffer, sec); @@ -543,9 +547,48 @@ bfd_init_section_compress_status (bfd *abfd, sec_ptr sec) { uncompressed_size = bfd_compress_section_contents (abfd, sec, uncompressed_buffer, - uncompressed_size); + uncompressed_size, + FALSE); ret = uncompressed_size != 0; } return ret; } + +/* +FUNCTION + bfd_compress_section + +SYNOPSIS + bfd_boolean bfd_compress_section + (bfd *abfd, asection *section, bfd_byte *uncompressed_buffer); + +DESCRIPTION + If open for write, compress section, update section size with + compressed size and set compress_status to COMPRESS_SECTION_DONE. + + Return @code{FALSE} if compression fail. Otherwise, return + @code{TRUE}. +*/ + +bfd_boolean +bfd_compress_section (bfd *abfd, sec_ptr sec, bfd_byte *uncompressed_buffer) +{ + bfd_size_type uncompressed_size = sec->size; + + /* Error if not opened for write. */ + if (abfd->direction != write_direction + || uncompressed_size == 0 + || uncompressed_buffer == NULL + || sec->contents != NULL + || sec->compressed_size != 0 + || sec->compress_status != COMPRESS_SECTION_NONE) + { + bfd_set_error (bfd_error_invalid_operation); + return FALSE; + } + + /* Compress it. */ + return bfd_compress_section_contents (abfd, sec, uncompressed_buffer, + uncompressed_size, TRUE) != 0; +} |