Understanding Linker Map File (MS Visual Studio 2005)

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I'm trying to understand the first section of the Map file produced by the MS Visual Studio 2005 linker. I know it has something to do with memory sections, but can someone help me decipher it?

Timestamp is 4b4f8d2b (Thu Jan 14 14:31:23 2010)

开发者_运维问答Preferred load address is 00400000

Start         Length     Name                   Class
0001:00000000 0028b752H .text                   CODE
0002:00000000 000001b4H .idata$5                DATA
0002:000001b4 00000004H .CRT$XCA                DATA
0002:000001b8 00000004H .CRT$XCAA               DATA
0002:000001bc 00000004H .CRT$XCC                DATA
0002:000001c0 00000004H .CRT$XCZ                DATA
0002:000001c4 00000004H .CRT$XIA                DATA
0002:000001c8 00000004H .CRT$XIAA               DATA
0002:000001cc 00000004H .CRT$XIC                DATA
0002:000001d0 00000004H .CRT$XIZ                DATA
0002:000001d8 00025288H .rdata                  DATA
0002:00025460 00000004H .rdata$sxdata           DATA
0002:00025464 00000004H .rtc$IAA                DATA
0002:00025468 00000004H .rtc$IZZ                DATA
0002:0002546c 00000004H .rtc$TAA                DATA
0002:00025470 00000004H .rtc$TZZ                DATA
0002:00025478 0000007cH .xdata$x                DATA
0002:000254f4 00000028H .idata$2                DATA
0002:0002551c 00000014H .idata$3                DATA
0002:00025530 000001b4H .idata$4                DATA
0002:000256e4 00000542H .idata$6                DATA
0002:00025c26 00000000H .edata                  DATA
0003:00000000 000f070cH .data                   DATA
0003:000f0720 001f1280H .bss                    DATA

Here is a good reference. I've been looking for this myself, as MSDN apparently provides no information whatsoever about them.

Those are just the object sections that need to be merged into image sections. Read up on PE and COFF if you're not sure what that means.