[coreboot] Problem with objcopy: cannot generate coreboot.strip
Jeffrey C. Jacobs
jacobs at itd.nrl.navy.mil
Thu Jul 16 14:55:21 CEST 2009
I was wondering if anyone could help me with a couple problems I'm
having building Coreboot at the moment. Foremost, since I upgraded to
SVN revision 4426, I've been unable to generate the stripped form of my
BIOS in this or a previously working very old edition (circa revision
2539 when things were still LinuxBIOS). What happens is the build is
dying at the objcopy step which is meant to strip the coreboot binary
before appending the boot loader binary. Specifically, here is what I
see from the generation of the CRT0 file to the end:
--------
gcc -m32 -nostdlib -nostartfiles -static -o linuxbios -T ldscript.ld crt0.o
/usr/bin/ld: warning: dot moved backwards before `.text'
/usr/bin/ld: warning: dot moved backwards before `.id'
/usr/bin/ld: warning: dot moved backwards before `.text'
/usr/bin/ld: warning: dot moved backwards before `.id'
/usr/bin/ld: warning: dot moved backwards before `.text'
/usr/bin/ld: warning: dot moved backwards before `.id'
nm -n linuxbios | sort > linuxbios.map
objcopy --gap-fill 0xff -R .note.gnu.build-id -O binary linuxbios
linuxbios.strip
objcopy: linuxbios.strip: Bad value
objcopy: linuxbios.strip: Bad value
make[1]: *** [linuxbios.strip] Error 1
make[1]: Leaving directory
`/home/jacobs/LinuxBIOS-v2-GRUB-PTR/targets/arcom/apollo/apollo/image'
make: *** [image/linuxbios.rom] Error 1
--------
Clearly, the objcopy is failing with some generic error of "Bad Value".
So, I ran a strace on this command which I've edited for space and
appended to this message below.
Secondly, I'm having a problem with the latest romcc. First of all, I
cannot pass simple_test26 (I'll spare you the verbose error message here
except to say that the final error is "too few registers". I changed
the first line in romcc/tests/simple_test26.c from defining COUNT as 23
to 15 and that seems to work; I take it my platform only has 15 free
registers; any more than that and I get the same error. Secondly, I
can't seem to build simple_test87. There is no
romcc/tests/simple_test87.c file and so when I try to compile romcc, I
get the following message:
make: *** No rule to make target `tests/simple_test87.c', needed by
`tests/simple_test87.S-O2-mmmx'. Stop.
Anyway, so those are the issues I'm seeing with the latest Coreboot. Am
I alone in this? Can anyone help me here? I'm ignoring the problems
with the romcc tests since I'm guessing that's okay as long as the
register count is no more than 15. But the problem with objcopy is very
mysterious so any and all help would be greatly appreciated. Thanks in
advance.
Jeffrey.
----Transcript of strace performed on `objcopy ... coreboot.strip`----
execve("/usr/bin/objcopy", ["objcopy", "--gap-fill", "0xff", "-O",
"binary", "coreboot", "coreboot.strip"], [/* 187 vars */]) = 0
brk(0) = 0x9999000
access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or
directory)
open("/etc/ld.so.cache", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=53996, ...}) = 0
mmap2(NULL, 53996, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7fde000
close(3) = 0
open("/usr/lib/libbfd-2.17.50.0.6-9.el5.so", O_RDONLY) = 3
read(3,
"\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\240\3760\0004\0\0\0"...,
512) = 512
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb7fdd000
fstat64(3, {st_mode=S_IFREG|0755, st_size=597048, ...}) = 0
mmap2(0x2fc000, 615280, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE,
3, 0) = 0x2fc000
mmap2(0x388000, 28672, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x8b) = 0x388000
mmap2(0x38f000, 13168, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x38f000
close(3) = 0
open("/lib/libc.so.6", O_RDONLY) = 3
read(3,
"\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\320\277\34\0004\0\0\0"...,
512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=1606808, ...}) = 0
mmap2(0x1b6000, 1324452, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE,
3, 0) = 0x1b6000
mmap2(0x2f4000, 12288, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x13e) = 0x2f4000
mmap2(0x2f7000, 9636, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x2f7000
close(3) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb7fdc000
set_thread_area({entry_number:-1 -> 6, base_addr:0xb7fdc6c0,
limit:1048575, seg_32bit:1, contents:0, read_exec_only:0,
limit_in_pages:1, seg_not_present:0, useable:1}) = 0
mprotect(0x2f4000, 8192, PROT_READ) = 0
mprotect(0x1b2000, 4096, PROT_READ) = 0
munmap(0xb7fde000, 53996) = 0
brk(0) = 0x9999000
brk(0x99ba000) = 0x99ba000
stat64("coreboot", {st_mode=S_IFREG|0755, st_size=94174, ...}) = 0
open("coreboot", O_RDONLY|O_LARGEFILE) = 3
fstat64(3, {st_mode=S_IFREG|0755, st_size=94174, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb7feb000
_llseek(3, 0, [0], SEEK_SET) = 0
read(3,
"\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\2\0\3\0\1\0\0\0\260&\0\0004\0\0\0"...,
4096) = 4096
_llseek(3, 4096, [4096], SEEK_SET) = 0
_llseek(3, 4096, [4096], SEEK_SET) = 0
_llseek(3, 4096, [4096], SEEK_SET) = 0
_llseek(3, 4096, [4096], SEEK_SET) = 0
_llseek(3, 4096, [4096], SEEK_SET) = 0
_llseek(3, 4096, [4096], SEEK_SET) = 0
_llseek(3, 4096, [4096], SEEK_SET) = 0
_llseek(3, 4096, [4096], SEEK_SET) = 0
_llseek(3, 4096, [4096], SEEK_SET) = 0
_llseek(3, 69632, [69632], SEEK_SET) = 0
read(3, "\0.symtab\0.strtab\0.shstrtab\0.ram\0"..., 4096) = 4096
_llseek(3, 73728, [73728], SEEK_SET) = 0
_llseek(3, 73728, [73728], SEEK_SET) = 0
_llseek(3, 0, [0], SEEK_SET) = 0
read(3,
"\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\2\0\3\0\1\0\0\0\260&\0\0004\0\0\0"...,
4096) = 4096
_llseek(3, 69632, [69632], SEEK_SET) = 0
read(3, "\0.symtab\0.strtab\0.shstrtab\0.ram\0"..., 4096) = 4096
stat64("coreboot.strip", 0xbfc24900) = -1 ENOENT (No such file or
directory)
open("coreboot.strip", O_RDWR|O_CREAT|O_TRUNC|O_LARGEFILE, 0666) = 4
_llseek(3, 73728, [73728], SEEK_SET) = 0
read(3,
"]\5\0\0\250\6\0\0\0\0\0\0\0\0\2\0c\5\0\0\257\6\0\0\0\0\0\0\0\0\2\0"...,
8192) = 8192
read(3, "]\21\0\0\265 \0\0\0\0\0\0\0\0\2\0c\21\0\0\304
\0\0\0\0\0\0\0\0\2\0"..., 4096) = 4096
read(3, "36\0L1038\0L1766\0L1039\0L1767\0L1044"..., 4096) = 4096
read(3, "1712\0L1717\0L1713\0L1714\0L1715\0L17"..., 4096) = 4062
brk(0x99e4000) = 0x99e4000
_llseek(3, 8192, [8192], SEEK_SET) = 0
read(3,
"\30\371\1\0\177\373\366\377\372.\17\1\0257A\0\0\352\20@\4\20\0\270\30\5\0\216\330\216\300\216"...,
45056) = 45056
read(3, "(B|\304c\273u:Q\216\2621\0211
2Xl\305\\\"S\326i\207^\304\370\260ZFi"..., 4096) = 4096
fstat64(4, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb7fea000
_llseek(4, 4294905856, [4294905856], SEEK_SET) = 0
read(4, "", 2384) = 0
_llseek(4, 2384, [4294908240], SEEK_CUR) = 0
write(4,
"\30\371\1\0\177\373\366\377\372.\17\1\0257A\0\0\352\20@\4\20\0\270\30\5\0\216\330\216\300\216"...,
45056) = 45056
brk(0x99d9000) = 0x99d9000
read(3, "\275\302$\0\0\353'f\272\375\3\354\17\266\370\203\347
\205\377t\361f\272\370\3\211\350\356f\272\375"..., 8192) = 8192
read(3,
"\17n\307\203\3779~\17\203\307'f\17n\307f\17\333\5\200#\0\0f\272\375\3\354\17\266\370\203"...,
4096) = 4096
write(2, "objcopy: coreboot.strip: Bad val"..., 35) = 35
write(4, "(B|\304c\273u:Q\216\2621\0211
2Xl\305\\\"S\326i\207^\304\370\260ZFi"..., 2917) = 2917
_llseek(4, 0, [0], SEEK_SET) = 0
read(4,
"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
4096) = 4096
_llseek(4, -1298, [2798], SEEK_CUR) = 0
write(4,
"\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377"...,
8192) = 8192
write(4,
"\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377"...,
4096) = 4096
----Repeat 1,048,558 times (including the one above)----
write(2, "objcopy: coreboot.strip: Bad val"..., 35) = 35
write(4,
"\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377"...,
3682) = 3682
close(4) = 0
munmap(0xb7fea000, 4096) = 0
stat64("coreboot.strip", {st_mode=S_IFREG|0644, st_size=4294956213,
...}) = 0
umask(0) = 022
umask(022) = 0
chmod("coreboot.strip", 0755) = 0
close(3) = 0
munmap(0xb7feb000, 4096) = 0
brk(0x99ca000) = 0x99ca000
lstat64("coreboot.strip", {st_mode=S_IFREG|0755, st_size=4294956213,
...}) = 0
unlink("coreboot.strip") = 0
exit_group(1) = ?
--------
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