diff options
| author | Furquan Shaikh <furquan@google.com> | 2015-05-29 12:46:18 -0700 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2015-06-30 08:09:58 +0200 |
| commit | f7a5b56297f0d06fe4312d6c1f12823852a95e6b (patch) | |
| tree | 3dd4be082f412accdfb3a09f7d049ffd075812ff /util/cbfstool | |
| parent | 41e2499734b37d5f38a17416a3512c2c9042e79c (diff) | |
cbfstool: Handle elf with different virtual and physical address
Adds support in cbfstool to adjust the entry field based on the
virtual and physical address in program header.
BUG=chrome-os-partner:40713
BRANCH=None
TEST=Verified correct entry point address. Trusty loads and boots correctly.
Change-Id: I215b0bea689626deec65e15fb3280e369d816406
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 32a740f0b628c124d3251cc416e2fc133bb15c57
Original-Change-Id: Ia999b5c55887c86ef1e43794ceaef2d867957f4d
Original-Signed-off-by: Furquan Shaikh <furquan@google.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/274087
Original-Trybot-Ready: Furquan Shaikh <furquan@chromium.org>
Original-Tested-by: Furquan Shaikh <furquan@chromium.org>
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Commit-Queue: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/10690
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'util/cbfstool')
| -rw-r--r-- | util/cbfstool/cbfs-mkstage.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/util/cbfstool/cbfs-mkstage.c b/util/cbfstool/cbfs-mkstage.c index f94d0da299..3e62525d48 100644 --- a/util/cbfstool/cbfs-mkstage.c +++ b/util/cbfstool/cbfs-mkstage.c @@ -102,6 +102,7 @@ int parse_elf_to_stage(const struct buffer *input, struct buffer *output, Elf64_Phdr *phdr; Elf64_Ehdr *ehdr; Elf64_Shdr *shdr_ignored; + Elf64_Addr virt_to_phys; char *buffer; struct buffer outheader; int ret = -1; @@ -143,6 +144,7 @@ int parse_elf_to_stage(const struct buffer *input, struct buffer *output, data_start = ~0; data_end = 0; mem_end = 0; + virt_to_phys = 0; for (i = 0; i < headers; i++) { unsigned int start, mend, rend; @@ -169,6 +171,9 @@ int parse_elf_to_stage(const struct buffer *input, struct buffer *output, if (mend > mem_end) mem_end = mend; + + if (virt_to_phys == 0) + virt_to_phys = phdr[i].p_paddr - phdr[i].p_vaddr; } if (data_start < *location) { @@ -262,7 +267,10 @@ int parse_elf_to_stage(const struct buffer *input, struct buffer *output, * Maybe we should just change the spec. */ xdr_le.put32(&outheader, algo); - xdr_le.put64(&outheader, ehdr->e_entry); + /* Coreboot expects entry point to be physical address. Thus, adjust the + * entry point accordingly. + */ + xdr_le.put64(&outheader, ehdr->e_entry + virt_to_phys); xdr_le.put64(&outheader, data_start); xdr_le.put32(&outheader, outlen); xdr_le.put32(&outheader, mem_end - data_start); |