Hello Sebastian,
Thanks for your suggestion. I moved to Ubuntu env on a VM, and I could easily build the library for arm -none-eabi with "--disable-newlib-supplied-syscalls" option.
Now, I am starting to add changes necessary to support tricore architecture. For basic support, my understanding is that following need to be updated:
- "newlib" configure.ac file [to add target option]
- low level code for setjmp and longjmp.
- add configure.in/.ac @ libc/machine/"tricore target folder name"
- update ieee headers, setjmp buffer size header, /sys/config header,
=>As I understand libgloss porting is not necessary as first step. Please correct me if I am wrong...
From community side, I have couple of questions:
- Would somebody in community, be generous enough to peer-review my changed files?
- Once build is successful, Is there any formal procedure required to push the updated code back to git-repo? [this is needed later]
Thanks again!!!
Many Regards,
Varun Kumar
Staff Engineer IFIN ATV SW
Infineon Technologies India Pvt Ltd
Tel.: +91 80 3927 1086
varun.kumar@infineon.com
Part of your life. Part of tomorrow
-----Original Message-----
From: Sebastian Huber [mailto:sebastian.huber@embedded-brains.de]
Sent: Monday, July 11, 2016 11:06 AM
To: Kumar Varun (IFIN ATV MC SW DEV EP); newlib@sourceware.org
Subject: Re: Newlib port for new architecture
Hello Varun,
I would not use a Windows host to do this work. Its probably much times faster if you do this on a Linux machine. I would also use a Git clone of Newlib to do the development.
On 09/07/16 10:39, Varun.Kumar@infineon.com wrote:
Hi,
I am using Cygwin to configure the newlib in windows environment [ I
wanted to check if build for arm is working before I start porting code for tricore arch] I am trying to use pre-built gcc image of arm [SysGCC ] for trial purpose. It is added in path variable, still not getting recognized. Attaching the logfile also.
Any help would be appreciated!!!
===============================================
kumavaru@BLR
/cygdrive/c/Varun/01_Work/23_eLuaPort/newlib/newlib-m68-aout
$ ../newlib-cygwin/configure --target=arm-eabi checking build system
type... i686-pc-cygwin checking host system type... i686-pc-cygwin
checking target system type... arm-unknown-eabi checking for a
BSD-compatible install... /usr/bin/install -c checking whether ln
works... yes checking whether ln -s works... yes checking for a sed
that does not truncate output... /usr/bin/sed checking for gawk...
gawk checking to see if cat works as expected... yes checking for
gcc... no checking for cc... no checking for cl.exe... no
configure: error: in `/cygdrive/c/Varun/01_Work/23_eLuaPort/newlib/newlib-m68-aout':
configure: error: no acceptable C compiler found in $PATH See
`config.log' for more details.
=========================================
It seems you need a native GCC installed. I would really use a Linux machine, just select the C/C++/kernel development packages and everything should be available.
--
Sebastian Huber, embedded brains GmbH
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