cwr@pnet01.cts.com (Will Rose) (03/23/91)
I've been trying to install the recently posted profiling code for the
68000 on an 8086. Hitherto, I've always rather liked the MINIX PC ACK
compiler despite its occasional bugs. Even the 64+64K address space has
the benfit (for me) of concentrating the mind, and preventing the addition
of everything but the kitchen sink to the code. In a teaching system, this
is an advantage.
However, what is not an advantage in a teaching system is inadequate
documention, and I have now found that the compiler documentation is
appallingly bad. The rest of the system has source code, the answer
to all such complaints, but the compiler is binary only. It has now
been on sale, essentially unchanged, for three or four years without
so much as a complete list of options; and the reason I've only just
discovered this is since the compiler documentation gives a list of
flags, I hitherto believed that it included all that there were.
(Descriptions of the startup code and of the packed assembler library
files would be nice, but a complete list of options is essential).
Below is a list of options for cc, asld and the various compiler
passes. I found these by experiment, and I haven't tested two-letter
and three-letter combinations since there are too many of them. (The cc
LIB option is an exception which I got from documentation.) Some options
I've got wrong, and some I don't understand; those with question marks
against them are especially suspect.
If anyone has anything to add to this list, please email me and I'll
summarise to the net when I get done with this profiling code.
Thanks - Will
================================================================
Minix PC 1.5.10 ACK Compiler options
cc
-D the flag -Dx=y defines a macro x with value y
-F use a file instead of a pipe for preprocessor output
-I -Idir searches dir for include files
-L disable profiling
-LIB produce a library module
-O ???
-R complain about all non Kernighan & Ritchie code
-S stop after producing an assembly code file
-T -Tdir tells cem to use dir for temporary files
-U undefine a macro
-c compile only, do not link (same as -S)
-i use separate I & D space (64K + 64K)
-o put output on file named by next arg
-p use mrtso.s as header
-v verbose mode - print pass names
-w suppress warning messages
asld
-L a listing is produced on standard output
-T used to specify a directory for the temporary file
-i use separate I & D space (64K + 64K)
-o output goes to file named by next argument
-s a symbol table is produced on standard output
========================================================================
Program Input Output Operation performed
/lib/cpp prog.c prog.i Pre-processing
/lib/cem prog.i prog.k Parsing and semantic analysis
/usr/lib/opt prog.k prog.m Optimization of the intermediate code
/usr/lib/fpp prog.m prog.M Floating point intermediate code
/usr/lib/cg prog.M prog.s Code generation
/usr/lib/asld prog.s a.out Assembly and linking
#
# Test of compiler options
#
/usr/lib/cpp test.c >test.C
/usr/lib/cem -L test.C test.k
/usr/lib/opt test.k >test.m
/usr/lib/cg test.m test.s
/usr/bin/asld /usr/lib/mrtso.s test.s /usr/lib/libc.a /usr/lib/end.s \
-s >symbol.out
ast -X
==============================================================================
Valid options for cpp
option -D # define a macro
option -I # set include file directory
option -M # set minimum identifier length (fixed at 8 ?)
option -P # do not add filename to first line of file
option -U # undefine a macro
Valid options for cem
option -D # ignored
option -I # ignored
option -L # suppress filename and line recording
option -M # set minimum identifier length (fixed at 8 ?)
option -N # do not move the EXP EM-codes to the head of the file (why ?)
option -R # warn of non-K&R code
option -T # set the temporary file directory
option -U # ignored
option -V # ignored
option -n # do not use register variables
option -p # include calls to _procenter, _procexit for profiling
option -w # suppress warning messages
Valid options for opt
option -L # produce a library module
option -n # suppress optimisation (completely ?)
Valid options for fpp
Fpp takes no options
Valid options for cg
option -p # no apparent effect, but cc -O generates -p4 (?)
option -w # suppress warning messages (?)
Valid options for asld
option -D # define a macro
option -I # search a specific library
option -L # produce a listing on standard output
option -T # set the temporary file directory
option -U # undefine a macro
option -i # use separate I&D space
option -o # name output file
option -s # produce a symbol table on standard output
========================================================================
-----------------------------------------------------------------------
"If heaven too had passions | Will Rose
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