From: "Eric Geisler" <egeisler AT ichips DOT intel DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: ld:  Physical (instead of linear) start address for section?
Date: 8 Jun 1998 23:23:55 GMT
Organization: Intel Corporation
Lines: 25
Message-ID: <01bd9330$544da590$33cdb88f@pvlpii-1>
NNTP-Posting-Host: pvlpii-1.pdx.intel.com
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Precedence: bulk

Hi,

I would like to have my code compiled with DJGPP 2.01 start at a specific
physical address, but it seems that ld only speaks in linear addresses.  Is
there any method for using physical addresses in ld?  I'm writing a linker
script like this:

SECTIONS {
   .text 0x100000 : {

     cpu.o(.text)
     *(.text)
   }
   .data : { *(.data) }
   .bss  : { *(.bss)  *(COMMON) }
}

0x100000 is the linear start address that I would like to specify as a
physical address.  The DPMI functions (like djgpp_map_physical_memory) make
converting from linear to physical addresses straightforward in C.

Thanks in advance for any insights.
Eric
egeisler AT ichips DOT intel DOT com