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Re: [avr-gcc-list] GCC Functions

From: Joerg Wunsch
Subject: Re: [avr-gcc-list] GCC Functions
Date: Thu, 29 Nov 2001 15:49:11 +0100 (MET)

Kujala Matti <address@hidden> wrote:

>> > #avr-gcc -O0 -Wall -mmcu=at90s2313 -c demo2c.c -o demo1.o
>> > #avr-gcc -o demo1.elf demo1.o
>> > #avr-objcopy -O ihex demo1.elf demo1.hex

> When you are compiling in the first way, are you not supposed to 
> explicitly link crt1.o if you want it put into the program?

Yes, you are not supposed to ever handle crtX.o manually when using
avr-gcc.  Only if you decide to handle the entire linkage step
manually by explicitly calling avr-ld, this will pass any and all
responsibilites to you.

Again, you can easily watch all this by calling avr-gcc with the -v
flag: it'll tell you about which backend command it's calling, and
which arguments to call them with.

J"org Wunsch                                           Unix support engineer
address@hidden        http://www.interface-systems.de/~j/

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