Subject: GCC: Mixing C and Assembler?
To: None <port-arm32@netbsd.org>
From: Riaz Randeree <RiazR@cat.co.za>
List: port-arm32
Date: 05/27/1999 10:16:41
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Hello
Please help me
I have 4 questions:
1. I want to have a project consisting of ".c" and ".s" files. Using
APCS32, what registers need to be preserved in the Assembler
functions
called from "C" code? Is it r4-r14, f4-f7?
2. Looking at some kernel ".s" files, ENTRY(xx) is used. Even though I
include /usr/src/sys/arch/arm32/include/asm/h, this macro is not
expanded.
Why?
3. Can I link an object file produced with ARMCC (Norcroft ARM C) with
GCC?
4. What are the pros and cons of using the inline assembly?
Any help will be greatly appreciated.
Riaz Randeree
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<TITLE>GCC: Mixing C and Assembler?</TITLE>
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<P><FONT SIZE=2>Hello</FONT>
</P>
<P><FONT SIZE=2>Please help me</FONT>
<BR><FONT SIZE=2>I have 4 questions:</FONT>
</P>
<P><FONT SIZE=2>1. I want to have a project consisting of ".c" and ".s" files. Using</FONT>
<BR><FONT SIZE=2> APCS32, what registers need to be preserved in the Assembler functions</FONT>
<BR><FONT SIZE=2> called from "C" code? Is it r4-r14, f4-f7? </FONT>
</P>
<P><FONT SIZE=2>2. Looking at some kernel ".s" files, ENTRY(xx) is used. Even though I</FONT>
<BR><FONT SIZE=2> include /usr/src/sys/arch/arm32/include/asm/h, this macro is not expanded.</FONT>
<BR><FONT SIZE=2> Why?</FONT>
</P>
<P><FONT SIZE=2>3. Can I link an object file produced with ARMCC (Norcroft ARM C) with GCC?</FONT>
</P>
<P><FONT SIZE=2>4. What are the pros and cons of using the inline assembly?</FONT>
</P>
<P><FONT SIZE=2>Any help will be greatly appreciated.</FONT>
</P>
<P><FONT SIZE=2>Riaz Randeree</FONT>
</P>
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