diff options
Diffstat (limited to 'bfd/merge.c')
-rw-r--r-- | bfd/merge.c | 53 |
1 files changed, 43 insertions, 10 deletions
diff --git a/bfd/merge.c b/bfd/merge.c index 5f45ba6..174ec90 100644 --- a/bfd/merge.c +++ b/bfd/merge.c @@ -25,6 +25,7 @@ #include "sysdep.h" #include "bfd.h" +#include "elf-bfd.h" #include "libbfd.h" #include "hashtab.h" #include "libiberty.h" @@ -283,7 +284,8 @@ sec_merge_add (struct sec_merge_hash *tab, const char *str, } static bfd_boolean -sec_merge_emit (bfd *abfd, struct sec_merge_hash_entry *entry) +sec_merge_emit (bfd *abfd, struct sec_merge_hash_entry *entry, + unsigned char *contents, file_ptr offset) { struct sec_merge_sec_info *secinfo = entry->secinfo; asection *sec = secinfo->sec; @@ -306,7 +308,12 @@ sec_merge_emit (bfd *abfd, struct sec_merge_hash_entry *entry) len = -off & (entry->alignment - 1); if (len != 0) { - if (bfd_bwrite (pad, len, abfd) != len) + if (contents) + { + memcpy (contents + offset, pad, len); + offset += len; + } + else if (bfd_bwrite (pad, len, abfd) != len) goto err; off += len; } @@ -314,7 +321,12 @@ sec_merge_emit (bfd *abfd, struct sec_merge_hash_entry *entry) str = entry->root.string; len = entry->len; - if (bfd_bwrite (str, len, abfd) != len) + if (contents) + { + memcpy (contents + offset, str, len); + offset += len; + } + else if (bfd_bwrite (str, len, abfd) != len) goto err; off += len; @@ -322,9 +334,13 @@ sec_merge_emit (bfd *abfd, struct sec_merge_hash_entry *entry) /* Trailing alignment needed? */ off = sec->size - off; - if (off != 0 - && bfd_bwrite (pad, off, abfd) != off) - goto err; + if (off != 0) + { + if (contents) + memcpy (contents + offset, pad, off); + else if (bfd_bwrite (pad, off, abfd) != off) + goto err; + } if (pad != NULL) free (pad); @@ -785,6 +801,8 @@ _bfd_write_merged_section (bfd *output_bfd, asection *sec, void *psecinfo) { struct sec_merge_sec_info *secinfo; file_ptr pos; + unsigned char *contents; + Elf_Internal_Shdr *hdr; secinfo = (struct sec_merge_sec_info *) psecinfo; @@ -795,11 +813,26 @@ _bfd_write_merged_section (bfd *output_bfd, asection *sec, void *psecinfo) return TRUE; /* FIXME: octets_per_byte. */ - pos = sec->output_section->filepos + sec->output_offset; - if (bfd_seek (output_bfd, pos, SEEK_SET) != 0) - return FALSE; + hdr = &elf_section_data (sec->output_section)->this_hdr; + if (hdr->sh_offset == (file_ptr) -1) + { + /* We must compress this section. Write output to the + buffer. */ + contents = hdr->contents; + if ((sec->output_section->flags & SEC_ELF_COMPRESS) == 0 + || contents == NULL) + abort (); + } + else + { + contents = NULL; + pos = sec->output_section->filepos + sec->output_offset; + if (bfd_seek (output_bfd, pos, SEEK_SET) != 0) + return FALSE; + } - if (! sec_merge_emit (output_bfd, secinfo->first_str)) + if (! sec_merge_emit (output_bfd, secinfo->first_str, contents, + sec->output_offset)) return FALSE; return TRUE; |