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Need armcc cmd line Option for not to generate.comment section at compile time

Note: This was originally posted on 5th February 2012 at http://forums.arm.com

Hi,

With --no_debug option, armcc is not removing .comment section. may i know whether we have any explicit option to remove .comment section during compile time.

Compiling source tmp.c with --no_debug option.



D:\Builds\temp>armcc -o tmp.o -c tmp.c --no_debug
"tmp.c", line 6: Warning:  #1-D: last line of file ends without a newline
  }
   ^
tmp.c: 1 warning, 0 errors

Dumping .comment section of tmp.o

 

D:\Builds\temp>objdump --full-contents --section=.comment tmp.o

tmp.o:  file format elf32-little

Contents of section .comment:
 0000 41524d2f 5468756d 6220432f 432b2b20  ARM/Thumb C/C++
 0010 436f6d70 696c6572 2c205256 4354322e  Compiler, RVCT2.
 0020 32205b42 75696c64 20353933 5d006172  2 [Build 593].ar
 0030 6d636320 2d2d6661 73746c69 63656e73  mcc --fastlicens
 0040 65202d2d 73697465 6c696365 6e736520  e --sitelicense
 0050 2d63202d 6f746d70 2e6f2074 6d702e63  -c -otmp.o tmp.c
 0060 00                          .

Thanks in Advance..!!!

-Pavan.

Pavan Kumar R over 12 years ago

Note: This was originally posted on 12th February 2012 at http://forums.arm.com

Or as you have RVCT, you can use fromelf.

I think Strip tool doesn't support the ARM obj files .Also confirmed by running it.

And From ELF is not removing comment section from relocatable obj files.

Any ways i don't want to extend my Build Time.. as there more than 10k files.. using strip/ fromelf on all them.. i think performance degrades. so looking for option at compile time.

Thank,
Pavan.
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Christophe Beausoleil over 12 years ago

Note: This was originally posted on 22nd February 2012 at http://forums.arm.com

Hi Pavan,

I am probably wrong, but have you ever tried --remove_unneeded_entities armcc's option ?

Best regards

Christophe
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Peter Harris over 12 years ago

Note: This was originally posted on 6th February 2012 at http://forums.arm.com

This is what utilities like strip are there for - just post-process the compiler output.

http://sourceware.org/binutils/docs/binutils/strip.html

Cheers,
Iso
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Peter Harris over 12 years ago

Note: This was originally posted on 12th February 2012 at http://forums.arm.com

[color=#222222][size=2]I think Strip tool doesn't support the ARM obj files .Also confirmed by running it.
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[size=2]I guess you've run your native version of strip, which will be compiled for x86, so that's not likely to work. You'll need to get hold of a cross-compiled version. I use the Linaro GCC compiler - [/size]http://www.linaro.org/downloads/ - see the "linaro-toolchain-binaries" part.[size=2]
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[color=#222222][size=2]
[/size][/color]
[color=#222222][size=2]
so looking for option at compile time.
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[color=#222222][size=2]
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[color=#222222][size=2]I'm not sure there is one.[/size][/color]
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Martin Weidmann over 12 years ago

Note: This was originally posted on 6th February 2012 at http://forums.arm.com

Or as you have RVCT, you can use fromelf.
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