Any Issues Preventing 4.9.1?

[Joel Sherrill]

Daron Chabot wrote:
> Joel Sherrill wrote:
>   
>> Hi,
>>
>> I just wanted to double check that no one
>> was holding a patch or problem that we wanted
>> to try to address for 4.9.1.
>>
>> Thanks.
>>
>>   
>>     
> I'm doing some testing with 4.9.0 and have found two issues. No
> show-stoppers but I thought I'd post my findings.
>
> 1) rtems_bsdnet_synchronize_ntp() is broken in 4.9.0. The problem lies
> in rtems_bsdnet_ntp.c, CVS version 1.10.6.1. However, I see that things
> are fixed with version 1.14 of that file (the "port" problem).
>
>   
Last minute "fix" that wasn't one. :(
> 2) Stripping info from binary files produces unusable executables with
> gcc-4.3.2 and binutils-2.18: "bsp-post-link" defined in
> make/custom/pc386.cfg is the culprit. In particular, the
> --remove-section=.rodata option to the $(OBJCOPY) cmd.
>
> Using Qemu, try a simple demonstration (use appropriate paths):
>
> chabotd at opi2043-001--> qemu -no-kqemu -no-reboot -m 128 -boot n -tftp
> /opt/rtems/i386-rtems/pc386/lib/rtems-4.9/tests -bootp /hello.exe
> -serial stdio
>
> Works fine, right ?
>
> Now, run the command defined by "bsp-post-link" on the executable hello.exe:
>
> chabotd at opi2043-001--> cp
> /opt/rtems/i386-rtems/pc386/lib/rtems-4.9/tests/hello.exe /tmp/hello.exe
> chabotd at opi2043-001--> cd /tmp
> chabotd at opi2043-001--> i386-rtems-objcopy -O elf32-i386
> --remove-section=.rodata --remove-section=.comment
> --remove-section=.note --strip-unneeded hello.exe hello.nxe
>
>   
I haven't had a chance to try this but I believe you.  Please file a PR
and a diff if you don't mind.
> And, now try Qemu using "rtems.nxe":
>
> chabotd at opi2043-001--> qemu -no-kqemu -no-reboot -m 128 -boot n -tftp
> /tmp -bootp /hello.nxe -serial stdio
> qemu: fatal: triple fault
> EAX=00000000 EBX=00000000 ECX=00121b7d EDX=00000000
> ESI=0011e5c4 EDI=00000004 EBP=00000008 ESP=00121b08
> EIP=0000004c EFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0
> ES =0010 00000000 ffffffff 00cf9300
> CS =0008 00000000 ffffffff 00cf9e00
> SS =0010 00000000 ffffffff 00cf9300
> DS =0010 00000000 ffffffff 00cf9300
> FS =0010 00000000 ffffffff 00cf9300
> GS =0010 00000000 ffffffff 00cf9300
> LDT=0000 00000000 0000ffff 00008000
> TR =0000 00000000 0000ffff 00008000
> GDT=     0011bc70 00000017
> IDT=     0011bc90 000007ff
> CR0=00050033 CR2=00000000 CR3=00000000 CR4=00000000
> CCS=00000000 CCD=00000000 CCO=ADDB
> FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80
> FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
> FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
> FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
> FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
> XMM00=00000000000000000000000000000000
> XMM01=00000000000000000000000000000000XMM02=00000000000000000000000000000000 
>
> XMM03=00000000000000000000000000000000XMM04=00000000000000000000000000000000 
>
> XMM05=00000000000000000000000000000000XMM06=00000000000000000000000000000000 
>
> XMM07=00000000000000000000000000000000
> Aborted
>
> As I implied, omitting the "--remove-section=.rodata" from the
> $(OBJCOPY) command *will* produce a functional, stripped executable.
> Plus, it only costs 48 bytes :-)
>
> Perhaps someone with more experience can weigh in...
>
>
> -- dc
>
>
>   


-- 
Joel Sherrill, Ph.D.             Director of Research & Development
joel.sherrill at OARcorp.com        On-Line Applications Research
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