The section header address is a VMA whereas the address found in
the program header is a physical one. With this change it is
possible to load and start a vx7 intel generic based image.
$ readelf -l /tmp/vx7
Elf file type is EXEC (Executable file)
Entry point 0x408000
There are 2 program headers, starting at offset 52
Program Headers:
Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align
LOAD 0x001000 0x00408000 0x00408000 0x04000 0x04000 RWE 0x1000
LOAD 0x005000 0xe040c000 0x0040c000 0x583a84 0x5ccc70 RWE 0x1000
Section to Segment mapping:
Segment Sections...
00 .text.locore .data.locore
01 .text .eh_frame .wrs_build_vars .data .tls_data .tls_vars .bss
$ readelf -S /tmp/vx7
There are 13 section headers, starting at offset 0x588af8:
Section Headers:
[Nr] Name Type Addr Off Size ES Flg Lk Inf Al
[ 0] NULL 00000000 000000 000000 00 0 0 0
[ 1] .text.locore PROGBITS 00408000 001000 00011e 00 AX 0 0 16
[ 2] .data.locore PROGBITS 00409000 002000 003000 00 WA 0 0
4096
[ 3] .text PROGBITS e040c000 005000 4802a0 00 WAX 0 0 32
[ 4] .eh_frame PROGBITS e088c2a0 4852a0 0a1ed0 00 A 0 0 4
[ 5] .wrs_build_vars PROGBITS e092e170 527170 000190 00 Ax 0 0 1
[ 6] .data PROGBITS e092f000 528000 060a70 00 WA 0 0
4096
[ 7] .tls_data PROGBITS e098fa70 588a70 000004 00 A 0 0 4
[ 8] .tls_vars PROGBITS e098fa78 588a78 00000c 00 WA 0 0 4
[ 9] .bss NOBITS e098faa0 588a84 0491d0 00 WA 0 0 32
[10] .shstrtab STRTAB 00000000 588a84 000074 00 0 0 1
[11] .symtab SYMTAB 00000000 588d00 056ee0 10 12 9758
4
[12] .strtab STRTAB 00000000 5dfbe0 05f48a 00 0 0 1
Key to Flags:
W (write), A (alloc), X (execute), M (merge), S (strings)
I (info), L (link order), G (group), T (TLS), E (exclude), x (unknown)
O (extra OS processing required) o (OS specific), p (processor specific)
Signed-off-by: Christian Gmeiner <christian.gmei...@gmail.com>
---
cmd/elf.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/cmd/elf.c b/cmd/elf.c
index 5190cc6..445daa0 100644
--- a/cmd/elf.c
+++ b/cmd/elf.c
@@ -376,7 +376,7 @@ int do_bootvx(cmd_tbl_t *cmdtp, int flag, int argc, char *
const argv[])
* binary image.
*/
if (valid_elf_image(addr))
- addr = load_elf_image_shdr(addr);
+ addr = load_elf_image_phdr(addr);
else
puts("## Not an ELF image, assuming binary\n");
--
2.7.4
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