regarding common segment

[chriselle@aptiphils.com]

To whom it may concern,

Good day!
I am Chriselle de Chavez and I am currently involved in a project using
ccppc and ldppc.
One of my members has some questions regarding your compiler and linker.
Please see message below.
Hoping for your prompt reply.

Thank you.
Maria Chriselle de Chavez (マリア・クリセル・デ・チャヴェズ)
Research & Development Supervisor
APTi-Philippines, Inc.
Phone:  +63-2-807-5521 loc. 6050
Fax:     +63-2-560-2454
e-mail:  chriselle@aptiphils.com

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Questions regarding compiler and linker:
good day,

i am using you compiler (ccppc for powerpc 405gp) gcc driver version
cygnus-2.7.2-960126 and ld linker (ldppc for powerpc405gp) in developing
printer firmware. my romsize is sufficient enough to accomodate the image
generated.

i would like to ask a few questions:

1. what is the common segment? as i have compiled my codes, aside from the
text, bss and data segment, common segment was added.
2. what contitutes the common segment? when does a variable qualify to be
placed in the common segment?
3. does link order affect actual memory configuration?


thank you and good day,
rommel delos santos