RE: objcopy problems
"Jaysen Roper" <[email protected]> Wed, 13 Aug 2008 13:21:31 +0100
| Newsgroups | gmane.comp.hardware.motorola.microcontrollers.coldfire |
|---|---|
| Message-ID | <002c01c8fd3f$1ed176b0$5c746410$@com> |
Ed, I think your linker def file is still specifying OUTPUT_FORMAT("coff-m68k") so its not picking up the lib differences in pluto6.a etc..
----------------------
And when I check the differences between "before and after" objcopy conversion I see that some debug info has gone. The resulting code does run on the target, but alas still no source level debug.
The following is (with OUTPUT_FORMAT==COFF in the linker def)
C:\Games\heber\demo>m68k-elf-objdump -x demo.elf
demo.elf: file format coff-m68k <<----- because of the linker def file
demo.elf
architecture: m68k:68020, flags 0x00000136:
EXEC_P, HAS_LINENO, HAS_SYMS, HAS_LOCALS, D_PAGED
start address 0x60000400
m68k-elf-objcopy --debugging -O ieee -R .id -R .system demo.elf demo.695
demo.elf: .stab: stab entry 1 is corrupt, strx = 0x17000000, type = 9
debug_record_line: no current unit
Last stabs entries before error:
n_type n_desc n_value string
211 0 00000000
3 0 00000000 idram.c
CATCH 0 00000000 idram.c
153 0 00000000 idram.c
SCOPE 0 00000000 idram.c
243 0 00000000 idram.c
29 0 00000000 dram.c
DSLINE 0 00000000 dram.c
SSYM 0 00000000 dram.c
123 0 00000000 dram.c
155 0 00000000 dram.c
175 0 00000000 dram.c
233 0 00000000 dram.c
GSYM 0 18000000 ram.c
NSYMS 0 19000000 ram.c
SLINE 0 1a000000 ram.c
C:\Games\heber\demo>m68k-elf-objdump -x demo.695
demo.695: file format ieee
demo.695
architecture: m68k:68020, flags 0x00000010:
HAS_SYMS <<------ Line numbers and local syms have gone after objdump
start address 0x60000400
------------------------------------------
If I specify OUTPUT_FORMAT("elf32-m68k") in the linker def file, then I get what I expected, Pluto libs need rebuilding with --march=xxx switch.
m68k-elf-ld -L/heber/pluto6/libs/peripherals/pluto6/81-16631-11 -L/heber/pluto6/libs/hardware/pluto6/81-16616-22 -L/hebe
r/pluto6/libs/customperipherals/pluto6/81-17315-5 -L/heber/pluto6/libs/interface/pluto6/81-17292-9 -L"C:\Program Files\C
odeSourcery\Sourcery G++ Lite\lib\gcc\m68k-elf\4.2.3\m5206e" -L"C:\Program Files\CodeSourcery\Sourcery G++ Lite\m68k-elf
\lib\m5206e" -Map demo.map -odemo.elf --script=pluto6.ld game.o config.o devices.o demo.o sysram.o idram.o fpga.o -lpe
ripherals -lcustomperipherals -linterface -lpluto6 -lg -lc -lgcc -lm -liberty -lstdc++
m68k-elf-ld: failed to merge target specific data of file /heber/pluto6/libs/hardware/pluto6/81-16616-16/vectors.o
m68k-elf-ld: m68k:68020 architecture of input file `/heber/pluto6/libs/peripherals/pluto6/81-16631-11\libperipherals.a(s
tepper.o)' is incompatible with m68k:isa-a:nodiv output
m68k-elf-ld: m68k:68020 architecture of input file `/heber/pluto6/libs/peripherals/pluto6/81-16631-11\libperipherals.a(t
imer.o)' is incompatible with m68k:isa-a:nodiv output
m68k-elf-ld: m68k:68020 architecture of input file `/heber/pluto6/libs/peripherals/pluto6/81-16631-11\libperipherals.a(e
2rom.o)' is incompatible with m68k:isa-a:nodiv output
m68k-elf-ld: m68k:68020 architecture of input file `/heber/pluto6/libs/peripherals/pluto6/81-16631-11\libperipherals.a(s
tepfnc.o)' is incompatible with m68k:isa-a:nodiv output
m68k-elf-ld: m68k:68020 architecture of input file `/heber/pluto6/libs/customperipherals/pluto6/81-17315-5\libcustomperi
pherals.a(rm161680.o)' is incompatible with m68k:isa-a:nodiv output
m68k-elf-ld: m68k:68020 architecture of input file `/heber/pluto6/libs/interface/pluto6/81-17292-9\libinterface.a(audioh
sfdrv.o)' is incompatible with m68k:isa-a:nodiv output
m68k-elf-ld: m68k:68020 architecture of input file `/heber/pluto6/libs/interface/pluto6/81-17292-9\libinterface.a(fat32.
o)' is incompatible with m68k:isa-a:nodiv output
m68k-elf-ld: m68k:68020 architecture of input file `/heber/pluto6/libs/hardware/pluto6/81-16616-22\libpluto6.a(entry.o)'
is incompatible with m68k:isa-a:nodiv output
m68k-elf-ld: m68k:68020 architecture of input file `/heber/pluto6/libs/hardware/pluto6/81-16616-22\libpluto6.a(wrapper.o
)' is incompatible with m68k:isa-a:nodiv output
m68k-elf-ld: m68k:68020 architecture of input file `/heber/pluto6/libs/hardware/pluto6/81-16616-22\libpluto6.a(fpuart0.o
)' is incompatible with m68k:isa-a:nodiv output
m68k-elf-ld: m68k:68020 architecture of input file `/heber/pluto6/libs/hardware/pluto6/81-16616-22\libpluto6.a(fpuart1.o
)' is incompatible with m68k:isa-a:nodiv output
m68k-elf-ld: m68k:68020 architecture of input file `/heber/pluto6/libs/hardware/pluto6/81-16616-22\libpluto6.a(duart0.o)
' is incompatible with m68k:isa-a:nodiv output
m68k-elf-ld: m68k:68020 architecture of input file `/heber/pluto6/libs/hardware/pluto6/81-16616-22\libpluto6.a(mbusdev.o
)' is incompatible with m68k:isa-a:nodiv output
m68k-elf-ld: m68k:68020 architecture of input file `/heber/pluto6/libs/hardware/pluto6/81-16616-22\libpluto6.a(atadrv.o)
' is incompatible with m68k:isa-a:nodiv output
m68k-elf-ld: m68k:68020 architecture of input file `/heber/pluto6/libs/hardware/pluto6/81-16616-22\libpluto6.a(serialmod
.o)' is incompatible with m68k:isa-a:nodiv output
m68k-elf-ld: m68k:68020 architecture of input file `/heber/pluto6/libs/hardware/pluto6/81-16616-22\libpluto6.a(lamps.o)'
is incompatible with m68k:isa-a:nodiv output
m68k-elf-ld: m68k:68020 architecture of input file `/heber/pluto6/libs/hardware/pluto6/81-16616-22\libpluto6.a(outputdev
.o)' is incompatible with m68k:isa-a:nodiv output
m68k-elf-ld: m68k:68020 architecture of input file `/heber/pluto6/libs/hardware/pluto6/81-16616-22\libpluto6.a(mxidev.o)
' is incompatible with m68k:isa-a:nodiv output
m68k-elf-ld: m68k:68020 architecture of input file `/heber/pluto6/libs/hardware/pluto6/81-16616-22\libpluto6.a(pic18.o)'
is incompatible with m68k:isa-a:nodiv output
m68k-elf-ld: m68k:68020 architecture of input file `/heber/pluto6/libs/hardware/pluto6/81-16616-22\libpluto6.a(except.o)
' is incompatible with m68k:isa-a:nodiv output
m68k-elf-ld: m68k:68020 architecture of input file `/heber/pluto6/libs/hardware/pluto6/81-16616-22\libpluto6.a(serialfnc
.o)' is incompatible with m68k:isa-a:nodiv output
m68k-elf-ld: m68k:68020 architecture of input file `/heber/pluto6/libs/hardware/pluto6/81-16616-22\libpluto6.a(vfd1.o)'
is incompatible with m68k:isa-a:nodiv output
m68k-elf-ld: m68k:68020 architecture of input file `/heber/pluto6/libs/hardware/pluto6/81-16616-22\libpluto6.a(devmgr.o)
' is incompatible with m68k:isa-a:nodiv output
m68k-elf-ld: m68k:68020 architecture of input file `/heber/pluto6/libs/hardware/pluto6/81-16616-22\libpluto6.a(dmamod.o)
' is incompatible with m68k:isa-a:nodiv output
m68k-elf-ld: m68k:68020 architecture of input file `/heber/pluto6/libs/hardware/pluto6/81-16616-22\libpluto6.a(main.o)'
is incompatible with m68k:isa-a:nodiv output
m68k-elf-ld: m68k:68020 architecture of input file `/heber/pluto6/libs/hardware/pluto6/81-16616-22\libpluto6.a(fpuart.o)
' is incompatible with m68k:isa-a:nodiv output
m68k-elf-ld: m68k:68020 architecture of input file `/heber/pluto6/libs/hardware/pluto6/81-16616-22\libpluto6.a(calypso32
.o)' is incompatible with m68k:isa-a:nodiv output
m68k-elf-ld: m68k:68020 architecture of input file `/heber/pluto6/libs/hardware/pluto6/81-16616-22\libpluto6.a(duart.o)'
is incompatible with m68k:isa-a:nodiv output
m68k-elf-ld: m68k:68020 architecture of input file `/heber/pluto6/libs/hardware/pluto6/81-16616-22\libpluto6.a(constant.
o)' is incompatible with m68k:isa-a:nodiv output
m68k-elf-ld: m68k:68020 architecture of input file `/heber/pluto6/libs/hardware/pluto6/81-16616-22\libpluto6.a(timermod.
o)' is incompatible with m68k:isa-a:nodiv output
m68k-elf-ld: m68k:68020 architecture of input file `/heber/pluto6/libs/hardware/pluto6/81-16616-22\libpluto6.a(pluto6.o)
' is incompatible with m68k:isa-a:nodiv output
cs-make: *** [demo.elf] Error 1
---------------------------------------
I downloaded codesourcery this week, and the libs today from the heber site.
lhdw= /heber/pluto6/libs/hardware/$(target)/81-16616-22
lper= /heber/pluto6/libs/peripherals/$(target)/81-16631-11
lcper= /heber/pluto6/libs/customperipherals/$(target)/81-17315-5
lint= /heber/pluto6/libs/interface/$(target)/81-17292-9
ihdw= /heber/pluto6/libs/hardware/$(target)/81-16616-22
iper= /heber/pluto6/libs/peripherals/$(target)/81-16631-11
icper= /heber/pluto6/libs/customperipherals/$(target)/81-17315-5
iint= /heber/pluto6/libs/interface/$(target)/81-17292-9
m68k-elf-gcc ver. 4.2.3
m68k-elf-ld ver. 2.18.50.20080215
m68k-elf-objcopy ver. 2.18.50.20080215
all from Sourcery G++ Lite 4.2-125
----
Is this getting big? Should we move to email?
Jayse
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Edwin Langley
Sent: 13 August 2008 11:29
To: Jaysen Roper
Subject: RE: [ColdFire] objcopy problems
Oh yes, sorry I forgot that bit. After a short while puzzling over which
library file these system call functions are in, I came to the same
conclusion you did Jaysen. Then I decided none of these functions are
called in the code anywhere (I assume none of your code does either
otherwise you'd have implemented them to make them do something)
Since they aren't really needed I just added some stubs to demo.c say,
like this:
void isatty()
{
}
void sbrk()
{
}
void write()
{
}
..... etc for each missing symbol.
That will sort those linker errors.
Ed Langley
Software Engineer
-----Original Message-----
From: [email protected] [mailto:[email protected]]
On Behalf Of Jaysen Roper
Sent: 13 August 2008 10:09
To: Edwin Langley
Subject: RE: [ColdFire] objcopy problems
Nearly there Ed,
These are the linker errors now, Ive look em all up and its because newlib
doesn't implement these because they are so different between targets and
developers need to do their own to suit the target.
I presume you have these already implemented for pluto6? If so can I have
them via Lee please.
Thanks
Jaysen
C:\Program Files\CodeSourcery\Sourcery G++
Lite\m68k-elf\lib\m5206e\libg.a(lib_a-sbrkr.o): In function `_sbrk_r':
sbrkr.c:(.text+0x10): undefined reference to `sbrk'
C:\Program Files\CodeSourcery\Sourcery G++
Lite\m68k-elf\lib\m5206e\libg.a(lib_a-writer.o): In function `_write_r':
writer.c:(.text+0x18): undefined reference to `write'
C:\Program Files\CodeSourcery\Sourcery G++
Lite\m68k-elf\lib\m5206e\libg.a(lib_a-closer.o): In function `_close_r':
closer.c:(.text+0x10): undefined reference to `close'
C:\Program Files\CodeSourcery\Sourcery G++
Lite\m68k-elf\lib\m5206e\libg.a(lib_a-fstatr.o): In function `_fstat_r':
fstatr.c:(.text+0x14): undefined reference to `fstat'
C:\Program Files\CodeSourcery\Sourcery G++
Lite\m68k-elf\lib\m5206e\libg.a(lib_a-isattyr.o): In function `_isatty_r':
isattyr.c:(.text+0x10): undefined reference to `isatty'
C:\Program Files\CodeSourcery\Sourcery G++
Lite\m68k-elf\lib\m5206e\libg.a(lib_a-lseekr.o): In function `_lseek_r':
lseekr.c:(.text+0x18): undefined reference to `lseek'
C:\Program Files\CodeSourcery\Sourcery G++
Lite\m68k-elf\lib\m5206e\libg.a(lib_a-readr.o): In function `_read_r':
readr.c:(.text+0x18): undefined reference to `read'
cs-make: *** [demo.elf] Error 1
-----Original Message-----
From: [email protected] [mailto:[email protected]]
On Behalf Of Edwin Langley
Sent: 12 August 2008 16:40
To: Jaysen Roper
Subject: RE: [ColdFire] objcopy problems
Hi Jaysen
I have reproduced the problems just as you describe them in this thread.
Here are some work arounds to produce an ieee format output file with
debug information, using our .a library files as provided in the dev kit.
> I've tried a full rebuild with the new ELF toolchain but get
architecture
> problems with our libraries at ld stage.
> The example below is a single example, every .o file in our library (3rd
> party, no src) produces this error.
>
> m68k-elf-ld: m68k:68020 architecture of input file
> `/heber/pluto6/libs/gnu/pluto6\libdbug.a(dbug-outbyte.o)' is
incompatible
> with m68k:isa-a:nodiv output
You are on the right track here, a full rebuild is necessary with a newer
ELF toolchain. I'm afraid I didn't get the architecture errors you
describe at link time. I used the Codesourcery toolchain which we are
using for Pluto 8, the download was called
freescale-coldfire-4.1-32-m68k-elf.exe. Please ensure you are using at
least a similar toolchain version from Codesourcery (they update it often
and don't seem to offer previous releases for download, at least for free,
which is fair enough). Also ensure the library .a files are as provided in
the dev kit. Try downloading the latest libraries from www.heber.co.uk if
necessary.
To Rebuild the demo project with the ELF toolchain some changes were
required to the commands and the target name in the makefile. Also some
extra sections were needed in the linker script:
.data : AT (ADDR(.shbss) + SIZEOF(.shbss))
{
vars_start = .;
*(.data)
- vars_end = .;
+/* vars_end = .; */
} > ram
+ .rodata : AT (ADDR(.shbss) + SIZEOF(.shbss) + SIZEOF(.data))
+ {
+ *(.rodata)
+ *(.rodata.str1.1)
+ vars_end = .;
+ } > ram
+ .eh_frame :
+ {
+ *(.eh_frame)
+ } > ram
Try this on the unaltered demo project in the dev kit.
Once an ELF file is built the objcopy command still produces the errors
you mentioned:
> C:\Games\heber\demo>m68k-elf-objcopy --debugging -O ieee -R .id -R
...system > demo.elf demo.iee
> demo.cof: .stab: stab entry 1 is corrupt, strx = 0xd3000000, type = 8
> demo.cof: .stab: stab entry 3 is corrupt, strx = 0x0, type = 37
> demo.cof: .stab: stab entry 4 is corrupt, strx = 0x0, type = 84
> demo.cof: .stab: stab entry 5 is corrupt, strx = 0x0, type = 110
> ....
These stab entries are coming from the lib .a files provided with the old
COFF toolchain (libgcc.a, libstdc++.a etc) which are still being
explicitly linked in by the makefile. So change the makefile to use the
libs which come with the new toolchain:
-lstd= ../../libs/gnu/$(target)
+lstd= C:\m68k-codesourcery\lib\gcc\m68k-elf\4.1.1\m5206e
+lstd2= C:\m68k-codesourcery\m68k-elf\lib\m5206e
(Add -L$(lstd2) to the linker command)
-gnu= -lc -ldbug -lgcc -lg -lm -liberty -lstdc++
+gnu= -lg -lc -lgcc -lm -liberty -lstdc++
After that I ran the objcopy command with the --debugging switch and it
worked fine.
If you need anymore detail let Lee know downstairs in support and I'll
pass it along.
Cheers
Ed Langley
Software Engineer
Heber Ltd.
Registered Office: Belvedere Mill, Chalford, Stroud. GL6 8NT, UK.
Registered England and Wales: 1744505
Tel: +44 (0) 1453 88 6000
www.heber.co.uk
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Heber Ltd.
Registered Office: Belvedere Mill, Chalford, Stroud. GL6 8NT, UK.
Registered England and Wales: 1744505
Tel: +44 (0) 1453 88 6000
www.heber.co.uk
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