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Re:Problem with linking kernel
Posted: Sat Dec 13, 2003 9:48 pm
by Chris Giese
I think you can safely use a dummy __main(), like this:
For _alloca(), either
- link with libgcc.a,
- extract _alloca() from libgcc.a and use it alone,
- write your own _alloca(), or
- compile with -mno-stack-arg-probe
This was also discussed in a thread in alt.os.development:
http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&th=5a1a16f6e245a2ab&seekm=1061906780.216942%40news.liwest.at#link1
Re:Problem with linking kernel
Posted: Sun Dec 14, 2003 4:34 am
by df
I added this info into the FAQ (wiki version)
Re:Problem with linking kernel
Posted: Sun Dec 14, 2003 1:39 pm
by beyondsociety
Code: Select all
I think you can safely use a dummy __main(), like this:
Code:int __main(void) { return 0; }
When I add this code to my kernel.c, ld:segmentation fault (core dumped). What is going wrong?
Re:Problem with linking kernel
Posted: Sun Dec 14, 2003 1:47 pm
by Tim
What executable format are you using? The main reason for Cygwin ld crashing is when you try to use the binary format, which is apparently broken in Cygwin.
Re:Problem with linking kernel
Posted: Sun Dec 14, 2003 1:59 pm
by beyondsociety
Fixed it. I changed the OUTPUT_FORMAT in the linker script from pe-i386 to pei-i386 and that fixed the segmentation fault. I was having problems with objcopy not converting my kernel.exe file, which I noticed that it was not working because of not correctly typing in the correct option for the format.
Everything is working now. Thanks for all the help.