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From: | Martin Str|mberg <ams AT speedy DOT ludd DOT luth DOT se> |
Subject: | Re: Alignment problem in GCC 2.95.2 |
Newsgroups: | comp.os.msdos.djgpp |
References: | <D26a9.201$yu2 DOT 7412 AT castor DOT casema DOT net> |
User-Agent: | tin/1.4.4-20000803 ("Vet for the Insane") (UNIX) (NetBSD/1.5_BETA (alpha)) |
Message-ID: | <1030288855.880883@queeg.ludd.luth.se> |
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Date: | 25 Aug 2002 15:20:55 GMT |
Lines: | 38 |
NNTP-Posting-Date: | 25 Aug 2002 15:20:55 GMT |
NNTP-Posting-Host: | queeg.ludd.luth.se |
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To: | djgpp AT delorie DOT com |
DJ-Gateway: | from newsgroup comp.os.msdos.djgpp |
Reply-To: | djgpp AT delorie DOT com |
Kernel Panic <rzhevskiy AT mail DOT ru> wrote: : I'm using GCC 2.95.2 (DJGPP) and having a problem with alignment.. Compiling : the following line: : kernel_info_page_t kernel_info_page __attribute__((aligned(PAGE_SIZE))) : (it's beginning of a structure) I get a message like: : global.c:31: warning: alignment of `struct kernel_info_page_t : kernel_info_page' is greater than maximum object file alignment. Using 4. : I haven't found any other way to set the alignment than with ugly assembler : macros. Can I see those macros? I'm interested myself in such aligning. > This compiled correctly on FreeBSD (with the same GCC version! : Though I don't understand how it's possible..).. FreeBSD is perhaps using something other than COFF? : Any suggestions?.. BTW, how does GCC know what file format it's actually I wrote my own linker script that aligns the .bss section to 4096 and make sure my structures that need this alignment comes first. On the other hand I also have some more structures that need this alignment and their number isn't known until the program is running. So I need to align the end of .bss too. Thus perhaps I should just ditch my first alignment and put everything at the end. : going to be?.. Compiled in default, perhaps. Right, MartinS
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