70 lines
2.5 KiB
Plaintext
70 lines
2.5 KiB
Plaintext
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The directory \startup and its subdirectories contain the files
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necessary for building the startup portion of the C runtime library.
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The \startup directory contains the startup source files, the memory
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model independent include files, the batch file and the make file used
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to build the startup object files. The subdirectories of \startup
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contain the memory model dependent include file (version.inc) for the
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startup and are the repositories for the object files that get created
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by the startup batch file.
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The startup object files can be built by invoking startup.bat. This
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batch file assumes that the \startup directory and its subdirectories
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S, M, C, and L exist and that make.exe, the C compiler and the assembler
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are in the execution path. MASM 4.0 or later is required to build the
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startup sources with the makefile invoked by startup.bat. The batch
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file also assumes that the startup sources are in the same directory as
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startup.bat.
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The include files stdio.h and ctype.h are required for building the
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startup source file wild.c but are not included on the \startup directory
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because they exist on the directory containing the standard include files.
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A make variable called CINC controls where the makefile looks for these
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include files. CINC is currently set to look for these include files in
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the \startup directory by the line "CINC=.." in the makefile. The value
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of CINC can be changed appropriately if the includes are placed elsewhere.
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The message "<cEnd - possible invalid use of nogen>" is generated
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when some of the assembly language source files are assembled. This
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message is expected and is totally benign.
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The startup batch file requires arguments as described in the header of
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startup.bat. Invoking startup.bat with no arguments will also give usage
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information.
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The following files are contained in the \startup directory:
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Startup source files:
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chkstk.asm
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chksum.asm
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crt0.asm
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crt0dat.asm
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crt0fp.asm
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crt0msg.asm
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execmsg.asm
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nmsghdr.asm
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setargv.asm
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stdalloc.asm
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stdenvp.asm
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stdargv.asm
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_wild.asm
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wild.c
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Startup include files:
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brkctl.inc
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cmacros.inc
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msdos.inc
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register.h
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Tools:
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dosseg.exe
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Make and batch files:
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startup.bat: invokes make file to build objs and link to null program
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makefile: contains rules for building startup sources
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nulbody.c: null c program
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nulbody.lnk: link script for linking null program
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Documentation:
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readme.doc: information about \startup directory structure
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and contents
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