1CC(1) General Commands Manual CC(1)
2
6 cc, pcc - C compiler
7
9 cc [ option ] ... file ...
10 pcc [ option ] ... file ...
12
14 Cc is the UNIX C compiler. It accepts several types of arguments:
15 Arguments whose names end with `.c' are taken to be C source programs;
17 they are compiled, and each object program is left on the file whose
18 name is that of the source with `.o' substituted for `.c'. The `.o'
19 file is normally deleted, however, if a single C program is compiled
20 and loaded all at one go.
21 In the same way, arguments whose names end with `.s' are taken to be
23 assembly source programs and are assembled, producing a `.o' file.
24 The following options are interpreted by cc. See ld(1) for load-time
26 options.
27 -c Suppress the loading phase of the compilation, and force an
29 object file to be produced even if only one program is com‐
30 piled.
31 -p Arrange for the compiler to produce code which counts the num‐
33 ber of times each routine is called; also, if loading takes
34 place, replace the standard startup routine by one which auto‐
35 matically calls monitor(3) at the start and arranges to write
36 out a mon.out file at normal termination of execution of the
37 object program. An execution profile can then be generated by
38 use of prof(1).
39 -f In systems without hardware floating-point, use a version of
41 the C compiler which handles floating-point constants and loads
42 the object program with the floating-point interpreter. Do not
43 use if the hardware is present.
44 -O Invoke an object-code optimizer.
46 -S Compile the named C programs, and leave the assembler-language
48 output on corresponding files suffixed `.s'.
49 -P Run only the macro preprocessor and place the result for each
51 `.c' file in a corresponding `.i' file and has no `#' lines in
52 it.
53 -E Run only the macro preprocessor and send the result to the
55 standard output. The output is intended for compiler debug‐
56 ging; it is unacceptable as input to cc.
57 -o output
59 Name the final output file output. If this option is used the
60 file `a.out' will be left undisturbed.
61 -Dname=def
63 -Dname Define the name to the preprocessor, as if by `#define'. If no
64 definition is given, the name is defined as 1.
65 -Uname Remove any initial definition of name.
67 -Idir `#include' files whose names do not begin with `/' are always
69 sought first in the directory of the file argument, then in
70 directories named in -I options, then in directories on a stan‐
71 dard list.
72 -Bstring
74 Find substitute compiler passes in the files named string with
75 the suffixes cpp, c0, c1 and c2. If string is empty, use a
76 standard backup version.
77 -t[p012]
79 Find only the designated compiler passes in the files whose
80 names are constructed by a -B option. In the absence of a -B
81 option, the string is taken to be `/usr/c/'.
82 Other arguments are taken to be either loader option arguments, or C-
84 compatible object programs, typically produced by an earlier cc run, or
85 perhaps libraries of C-compatible routines. These programs, together
86 with the results of any compilations specified, are loaded (in the
87 order given) to produce an executable program with name a.out.
88 The major purpose of the `portable C compiler', pcc, is to serve as a
90 model on which to base other compilers. Pcc does not support options
91 -f, -E, -B, and -t. It provides, in addition to the language of cc,
92 unsigned char type data and initialized bit fields.
93
95 file.c input file
96 file.o object file
97 a.out loaded output
98 /tmp/ctm? temporaries for cc
99 /lib/cpp preprocessor
100 /lib/c[01] compiler for cc
101 /usr/c/oc[012] backup compiler for cc
102 /usr/c/ocpp backup preprocessor
103 /lib/fc[01] floating-point compiler
104 /lib/c2 optional optimizer
105 /lib/crt0.o runtime startoff
106 /lib/mcrt0.o startoff for profiling
107 /lib/fcrt0.o startoff for floating-point interpretation
108 /lib/libc.a standard library, see intro(3)
109 /usr/include standard directory for `#include' files
110 /tmp/pc* temporaries for pcc
111 /usr/lib/ccom compiler for pcc
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114 B. W. Kernighan and D. M. Ritchie, The C Programming Language, Pren‐
115 tice-Hall, 1978
116 D. M. Ritchie, C Reference Manual
117 monitor(3), prof(1), adb(1), ld(1)
118
120 The diagnostics produced by C itself are intended to be self-explana‐
121 tory. Occasional messages may be produced by the assembler or loader.
122 Of these, the most mystifying are from the assembler, as(1), in partic‐
123 ular `m', which means a multiply-defined external symbol (function or
124 data).
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127 Pcc is little tried on the PDP11; specialized code generated for that
128 machine has not been well shaken down. The -O optimizer was designed
129 to work with cc; its use with pcc is suspect.
130 PDP11 CC(1)