diff options
Diffstat (limited to 'bfd/bfd.c')
| -rw-r--r-- | bfd/bfd.c | 26 |
1 files changed, 18 insertions, 8 deletions
@@ -177,12 +177,15 @@ CODE_FRAGMENT .#define BFD_ARCHIVE_FULL_PATH 0x100000 . .#define BFD_CLOSED_BY_CACHE 0x200000 + +. {* Compress sections in this BFD with SHF_COMPRESSED zstd. *} +.#define BFD_COMPRESS_ZSTD 0x400000 . . {* Flags bits to be saved in bfd_preserve_save. *} .#define BFD_FLAGS_SAVED \ . (BFD_IN_MEMORY | BFD_COMPRESS | BFD_DECOMPRESS | BFD_LINKER_CREATED \ . | BFD_PLUGIN | BFD_COMPRESS_GABI | BFD_CONVERT_ELF_COMMON \ -. | BFD_USE_ELF_STT_COMMON) +. | BFD_USE_ELF_STT_COMMON | BFD_COMPRESS_ZSTD) . . {* Flags bits which are for BFD use only. *} .#define BFD_FLAGS_FOR_BFD_USE_MASK \ @@ -2500,6 +2503,9 @@ bfd_update_compression_header (bfd *abfd, bfd_byte *contents, { const struct elf_backend_data *bed = get_elf_backend_data (abfd); struct bfd_elf_section_data * esd = elf_section_data (sec); + const unsigned int ch_type = abfd->flags & BFD_COMPRESS_ZSTD + ? ELFCOMPRESS_ZSTD + : ELFCOMPRESS_ZLIB; /* Set the SHF_COMPRESSED bit. */ elf_section_flags (sec) |= SHF_COMPRESSED; @@ -2507,7 +2513,7 @@ bfd_update_compression_header (bfd *abfd, bfd_byte *contents, if (bed->s->elfclass == ELFCLASS32) { Elf32_External_Chdr *echdr = (Elf32_External_Chdr *) contents; - bfd_put_32 (abfd, ELFCOMPRESS_ZLIB, &echdr->ch_type); + bfd_put_32 (abfd, ch_type, &echdr->ch_type); bfd_put_32 (abfd, sec->size, &echdr->ch_size); bfd_put_32 (abfd, 1u << sec->alignment_power, &echdr->ch_addralign); @@ -2518,7 +2524,7 @@ bfd_update_compression_header (bfd *abfd, bfd_byte *contents, else { Elf64_External_Chdr *echdr = (Elf64_External_Chdr *) contents; - bfd_put_32 (abfd, ELFCOMPRESS_ZLIB, &echdr->ch_type); + bfd_put_32 (abfd, ch_type, &echdr->ch_type); bfd_put_32 (abfd, 0, &echdr->ch_reserved); bfd_put_64 (abfd, sec->size, &echdr->ch_size); bfd_put_64 (abfd, UINT64_C (1) << sec->alignment_power, @@ -2553,14 +2559,15 @@ bfd_update_compression_header (bfd *abfd, bfd_byte *contents, SYNOPSIS bool bfd_check_compression_header (bfd *abfd, bfd_byte *contents, asection *sec, + unsigned int *ch_type, bfd_size_type *uncompressed_size, unsigned int *uncompressed_alignment_power); DESCRIPTION - Check the compression header at CONTENTS of SEC in ABFD and - store the uncompressed size in UNCOMPRESSED_SIZE and the - uncompressed data alignment in UNCOMPRESSED_ALIGNMENT_POWER - if the compression header is valid. + Check the compression header at CONTENTS of SEC in ABFD and store the + ch_type in CH_TYPE, uncompressed size in UNCOMPRESSED_SIZE, and the + uncompressed data alignment in UNCOMPRESSED_ALIGNMENT_POWER if the + compression header is valid. RETURNS Return TRUE if the compression header is valid. @@ -2569,6 +2576,7 @@ RETURNS bool bfd_check_compression_header (bfd *abfd, bfd_byte *contents, asection *sec, + unsigned int *ch_type, bfd_size_type *uncompressed_size, unsigned int *uncompressed_alignment_power) { @@ -2591,7 +2599,9 @@ 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); } - if (chdr.ch_type == ELFCOMPRESS_ZLIB + *ch_type = chdr.ch_type; + if ((chdr.ch_type == ELFCOMPRESS_ZLIB + || chdr.ch_type == ELFCOMPRESS_ZSTD) && chdr.ch_addralign == (chdr.ch_addralign & -chdr.ch_addralign)) { *uncompressed_size = chdr.ch_size; |