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[avr-gcc-list] Put text string after interrupt vectors


From: Lars Noschinski
Subject: [avr-gcc-list] Put text string after interrupt vectors
Date: Mon, 15 Aug 2005 12:32:04 +0200
User-agent: mutt-ng devel (Linux)

Hello!

I'm rewriting an assembler program to C, which had a signature string at 0x20
in the flash memory. I tried to reproduce this with

const char signature[] __attribute__ ((section (".signature"))) = "signature";

and the linker option --section-start=.signature=0x0020, but this
doesn't work, because it overlaps with the .text section:

/usr/lib/gcc/avr/3.4.3/../../../../avr/bin/ld: section .text [00000000
-> 0000009f] overlaps section .signature [00000020 -> 00000040]

Is there a way to tell gcc (or ld) to put the signature at 0x20? If not,
is there at least a way to guarantee, that the signature is "anywhere
near the beginning" of the flash memory?

- Lars

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