Date: Thu, 5 Feb 2004 09:04:49 GMT From: Hong MingJian <superhaar@263.sina.com> To: freebsd-hackers@freebsd.org Subject: KERNBASE Message-ID: <200402050904.i1594njk001524@bsdbox>
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Hello: I'm a newbie to the kernel and trying to understand parts of kernel by reading its source codes. I'm reading sys/i386/i386/locore.s. There is a macro definition in the file sys/i386/i386/locore.s: #define R(foo) ((foo)-KERNBASE) But in the /sys/conf/ldscript.i386, . = kernbase + 0x00100000 + SIZEOF_HEADERS; And the kernel is loaded in the physical address 0x00100000, so I think the macro in the locore.s should be: #define R(foo) ((foo)-KERNBASE-SIZEOF_HEADERS) Why not?
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