diff options
| author | Antonello Dettori <dettori.an@gmail.com> | 2016-06-16 13:40:24 +0200 |
|---|---|---|
| committer | Aaron Durbin <adurbin@chromium.org> | 2016-06-17 20:04:27 +0200 |
| commit | 3bded7db7e925e177570d95dfc7b5cb08118b101 (patch) | |
| tree | b112d8e702a207ba8c71821386c99964c558dbbd /util/cbfstool | |
| parent | d72cc4111b81497356b0cb5d4c305ae9e460a9b5 (diff) | |
elfwriter: Fix multi-phdrs ELFs parsing
Allow to write multiple phdrs, one for each non-consecutive section
of the ELF.
Previously it only worked for ELFs contaning a single
program header.
Change-Id: If6f95e999373a0cab4414b811e8ced4c93c67c30
Signed-off-by: Antonello Dettori <dev@dettori.io>
Reviewed-on: https://review.coreboot.org/15215
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Diffstat (limited to 'util/cbfstool')
| -rw-r--r-- | util/cbfstool/elfheaders.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/util/cbfstool/elfheaders.c b/util/cbfstool/elfheaders.c index e068d38144..8942eea03c 100644 --- a/util/cbfstool/elfheaders.c +++ b/util/cbfstool/elfheaders.c @@ -958,6 +958,7 @@ static void write_phdrs(struct elf_writer *ew, struct buffer *phdrs) Elf64_Half i; Elf64_Phdr phdr; size_t num_written = 0; + size_t num_needs_write = 0; for (i = 0; i < ew->num_secs; i++) { struct elf_writer_section *sec = &ew->sections[i]; @@ -967,7 +968,7 @@ static void write_phdrs(struct elf_writer *ew, struct buffer *phdrs) if (!section_consecutive(ew, i)) { /* Write out previously set phdr. */ - if (num_written != 0) { + if (num_needs_write != num_written) { phdr_write(ew, phdrs, &phdr); num_written++; } @@ -983,6 +984,8 @@ static void write_phdrs(struct elf_writer *ew, struct buffer *phdrs) if (sec->shdr.sh_flags & SHF_WRITE) phdr.p_flags |= PF_W; phdr.p_align = sec->shdr.sh_addralign; + num_needs_write++; + } else { /* Accumulate file size and memsize. The assumption * is that each section is either NOBITS or full @@ -998,8 +1001,11 @@ static void write_phdrs(struct elf_writer *ew, struct buffer *phdrs) } /* Write out the last phdr. */ - if (num_written != ew->ehdr.e_phnum) + if (num_needs_write != num_written) { phdr_write(ew, phdrs, &phdr); + num_written++; + } + assert(num_written == ew->ehdr.e_phnum); } static void fixup_symbol_table(struct elf_writer *ew) |