1fpc(1) Free Pascal Compiler fpc(1)
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6 fpc - Free Pascal Compiler (FPC) binary
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10 fpc [options] [sourcefile]
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14 This binary is the main binary of the Free Pascal Compiler (FPC) which
15 is a Turbo Pascal and Delphi (7.0) compatible standalone (non GCC fron‐
16 tend) multitarget Pascal compiler.
17 The compiler uses LD(1) and can use AS(1) (see parameter -Aas), but
19 also has its own binary object writer.
20 The current main targets are Go32V2 (Dos DJGPP extender), Freebsd,
22 Linux, MacOS, MacOSX, MorphOS, Netware, OS/2 and Win32. The other tar‐
23 gets (M68K compilers for Atari and Amiga) are either based on older
24 versions of the compiler or are still in development.
25 This manpage is meant for quick-reference only. FPC comes with a great
27 (2000+ pages) manual, which is updated constantly, while this man page
28 can be out of date.
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32 Starting with release 1.0, a new versioning system has been imple‐
33 mented. If the last number is even (1.0, 1.0.2), it is stable, and if
34 the last number is odd it is a daily changing development ver‐
35 sion.(1.0.5, 1.1) just like the linux kernel.
36 Version 0.99.5 however is a stable release. It was made before the
38 even/odd version naming system was introduced.
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42 The compilation proces is started by typing fpc followed by a source‐
43 file name (normally with .pas or .pp extension). Before processing the
44 actual processing of the source file, fpc.cfg(5) the configuration file
45 of the compiler is read which contains the location of the RTL, other
46 packages (FCL, FreeVision), and optionally default values for some
47 switches. See the separate manpage of fpc.cfg(5) for more information.
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51 General options
52 -h if you specify this option, the compiler outputs a list of all
55 options, and exits after that.
56 -? idem as -h, but waiting after every screenfull for the enter
58 key.
59 -i This option tells the compiler to print the copyright informa‐
61 tion.
62 You can give it an option, as -ixxx where "xxx" can be one of
64 the following:
65 D Returns the compiler date.
67 V Returns the compiler version.
69 SO Returns the compiler OS.
71 SP Returns the compiler processor.
73 TO Returns the target OS.
75 TP Returns the target Processor.
77 -l This option tells the compiler to print the FPC logo on standard
79 output. It also gives you the FPC version number.
80 -n Tells the compiler not to read the configuration file fpc.cfg(5)
82 Options for getting feedback
85 -vxxx Be verbose. "xxx" is a combination of the following:
87 e Tells the compiler to show only errors. This option is on
89 by default.
90 i Tells the compiler to show some general information.
92 w Tells the compiler to issue warnings.
94 n Tells the compiler to issue notes.
96 h Tells the compiler to issue hints.
98 l Tells the compiler to show the line numbers as it pro‐
100 cesses a file. Numbers are shown per 100.
101 u Tells the compiler to print the names of the files it
103 opens.
104 t Tells the compiler to print the names of the files it
106 tries to open.
107 p Tells the compiler to print the names of procedures and
109 functions as it is processing them.
110 c Tells the compiler to warn you when it processes a condi‐
112 tional.
113 m Tells the compiler to write which macros are defined.
115 d Tells the compiler to write other debugging info.
117 a Tells the compiler to write all possible info. (this is
119 the same as specifying all options)
120 0 Tells the compiler to write no messages. This is useful
122 when you want to override the default setting in the con‐
123 figuration file.
124 b Tells the compiler to show all procedure declarations if
126 an overloaded function error occurs.
127 x Tells the compiler to output some executable info (for
129 Win32 platform only).
130 r Rhide/GCC compatibility mode: formats the error differ‐
132 ently, so they are understood by RHIDE.
133 Options concerning files and directories
135 -exxx tells the compiler that xxx is the directory where it can find
137 the executables as (the assembler) and ld (the linker).
138 -FD same as -e.
140 -Fexxx This option tells the compiler to write errors, etc. to the file
142 xxx
143 -FExxx set the executable/unit output path to xxx
145 -Fixxx adds xxx to the path where the compiler searches for its include
147 files.
148 -Flxxx Adds xxx to the library searching path, and is passe to the
150 linker.
151 -FLxxx ( Linux only) Tells the compiler to use xxx as the dynamic
153 linker. Default this is /lib/ld-linux.so.2, or lib/ld-
154 linux.so.1, depending on which one is found.
155 -Foxxx Adds xxx to the object file path. This path is used when looking
157 for files that need to be linked in.
158 -Frxxx tells the compiler that xxx contains the compiler messages.
160 Default the compiler has built-in messages. Specifying this
161 option will override the default messages. (useful if you want
162 to use a language other than the default language).
163 -Fuxxx Adds xxx to the unit path. By default, the compiler only
165 searches for units in the current directory and the directory
166 where the compiler itself resides. This option tells the com‐
167 piler also to look in the directory xxx
168 -FUxxx Tells the compiler to write units in directory xxx instead of
170 the current directory.
171 -Ixxx Add xxx to the include file search path. This path is used when
173 looking for include files.
174 for more information on these options, see also the programmers manual.
177 -a Tells the compiler not to delete the assembler file. This also
179 counts for the (possibly) generated batch script.
180 -al Tells the compiler to include the sourcecode lines in the assem‐
182 bler file as comments.
183 -an Tells the compiler to include node information in the generated
185 assembler file. This is mainly for use by the compiler develop‐
186 ers.
187 -ap Tells the compiler to use pipes to communicate with the assem‐
189 bler.
190 -ar Tells the compiler to include register allocation/deallocation
192 information.
193 -at Tells the compiler to include temparary register alloca‐
195 tion/deallocation information.
196 -Axxx specifies what kind of assembler should be generated . Here xxx
198 is one of the following :
199 AS A unix .o (object) file, using GNU AS
201 coff coff object file (go32) using internal writer.
203 default
205 Use the default writer for the current platform.
206 elf elf object file (linux, 32-bit only) using internal
208 writer.
209 nasmcoff
211 a coff file using the nasm assembler.
212 nasmelf
214 a ELF32 file (LINUX only) using the nasm assembler.
215 nasmobj
217 a obj file using the nasm assembler.
218 masm An obj file using the Microsoft masm assembler.
220 pecoff pecoff object file (win32) using internal writer.
222 tasm An obj file using the Borland tasm assembler.
224 wasm An obj file using the Watcom assembler.
226 -Ccxxx set the default calling convention to XXX.
228 -CD Create dynamic library.
230 -Ce Compile using emulated floating point instructions.
233 -Cfxxx Set the used floating point instruction set to xxx.
235 -Cg Generate PIC code.
237 -Chxxx Reserves xxx bytes heap. xxx should be between 1024 and
239 67107840.
240 -Ci Generate Input/Output checking code.
242 -Cn Omit the linking stage.
244 -Co Generate Integer overflow checking code.
246 -CR Verify object call validity (method calls mustbe valid).
248 -Cr Generate Range checking code.
250 -Csxxx Set stack size to xxx bytes.
252 -Ct generate stack checking code.
254 -CX Create a smartlinked library.
256 -dxxx Define the symbol name xxx This can be used to condition‐
258 ally compile parts of your code.
259 -E Same as -Cn.
262 -g Generate debugging information for debugging with GDB
264 -gg idem as -g.
266 -gd generate debugging info for dbx.
268 -gh use the heaptrc unit (see the units part of the FPC man‐
270 ual).
271 -gl use the lineinfo unit for line information (see the units
273 part of the FPC manual).
274 -gv Generate information for debugging with valgrind.
276 -gw Generate DWARF debugging information.
278 -Oxxx optimize the compiler's output; xxx can have one of the
280 following values :
281 g optimize for size, try to generate smaller code.
283 G optimize for time, try to generate faster code
285 (default).
286 r keep certain variables in registers (experimental,
288 use with caution).
289 u uncertain optimizations
291 1 Level 1 optimizations (quick optimizations).
293 2 Level 2 optimizations (-O1 plus some slower opti‐
295 mizations).
296 3 Level 3 optimizations (-O2 plus -Ou).
298 pn Specify processor : n can be one of
300 1 optimize for 386/486
302 2 optimize for Pentium/PentiumMMX (tm)
304 3 optimizations for PentiumPro / P-II / Cyrix
306 6x86 / K6 (tm)
307 The exact effect of these effects can be found in the
309 programmers part of the manual.
310 -oxxx Tells the compiler to use xxx as the name of the output
312 file (executable). Only with programs.
313 -pg Generate profiler code for gprof.
315 -s Tells the compiler not to call the assembler and linker.
317 Instead, the compiler writes a script, PPAS.BAT under
318 DOS, or ppas.sh under Linux, which can then be executed
319 to produce an executable.
320 -sh Tells the compiler to generate a script that can be used
322 to assemble and link on the host system, not on the tar‐
323 get system. Use this when cross-compiling.
324 -sr Skip register allocation stage in compiler (use with -ar)
326 -st Tells the compiler to generate a script that can be used
328 to assemble and link on the target system, not on the
329 host system. Use this when cross-compiling.
330 -Txxx Specifies the target operating system. xxx can be one of
332 the following:
333 EMX OS/2 and DOS via the EMX extender.
335 FREEBSD
337 FreeBSD
338 GO32V2 DOS and version 2 of the DJ DELORIE extender.
340 LINUX Linux.
342 NETBSD Netbsd.
344 NETWARE
346 Novell Netware module (clib)
347 NETLIBC
349 Novell Netware module (libc)
350 OPENBSD
352 OpenBSD
353 OS2 OS/2 (native mode)
355 SunOS Solaris SunOS
357 WATCOM WatCOM dos extender
359 WDOSX WDosX Dos extender
361 WIN32 Windows 32 bit.
363 -uxxx undefine the symbol xxx if it is defined. This is the
365 opposite of the -d option.
366 -Xx Executable options. These tell the compiler what kind of
368 executable should be generated. the parameter x can be
369 one of the following:
370 c (Linux only, obsolete) Link with the C library.
372 You should only use this when you start to port
373 Free Pascal to another operating system.
374 D Link with dynamic libraries (defines the
376 FPC_LINK_DYNAMIC symbol)
377 d Don't use the standard library path. Use this when
379 cross-compiling, to avoid linking with the host OS
380 libraries.
381 Pxxx Prepend the names of binutils (as, ld) with xxx.
383 For use when cross-compiling.
384 rxxx Set the library search path to xxx.
386 s Strip the symbols from the executable.
388 S Link with static libraries (defines the
390 FPC_LINK_STATIC symbol)
391 t Link statically (passes -static to the linker)
393 X Link smart. Using this option sets the
395 FPC_LINK_SMART symbol.
396 Options concerning the sources (language options) for more
399 information on these options, see also in the Programmers Manual
400 -Mmode Specify the language mode. mode can be one of the fol‐
402 lowing:
403 delphi Delphi-compatibility mode. This loads the objpas
405 unit, and switches on ansistring mode ( -Sh ).
406 fpc Default mode.
408 gpc GNU pascal mode (does nothing at the moment)
410 macpas MAC pascal mode. This loads the macpas unit and
412 switches on some Mac extensions (mainly macros)
413 objfpc Object Pascal mode. This loads the objpas unit.
415 tp Turbo Pascal mode.
417 -Rxxx Specifies what assembler you use in your "asm" assembler
419 code blocks. Here xxx is one of the following:
420 att Asm blocks contain AT&T assembler.
422 intel Asm blocks contain Intel assembler.
424 direct Asm blocks should be copied as-is in the assembler
426 file.
427 -S2 Switch on Delphi 2 extensions.
429 -Sa Generate code for assertions.
431 -Sc Support C-style operators, i.e. *=, +=, /= and -=.
433 -Sd Tries to be Delphi compatible
435 -Se The compiler stops after the first error. Normally, the
437 compiler tries to continue compiling after an error,
438 until 50 errors are reached, or a fatal error is reached,
439 and then it stops. With this switch, the compiler will
440 stop after the first error.
441 -Sg Support the label and goto commands.
443 -Sh use ansistrings by default.
445 -SIxxx Specify the kind of interfaces. xxx can be one of the
447 following:
448 COM use COM interfaces. (all interfaces descend from
450 IUnknown)
451 CORBA use CORBA interfaces. (no inheritance is supposed)
453 -Si Support C++ style INLINE.
455 -Sm Support C-style macros.
457 -So Try to be Borland TP 7.0 compatible (no function over‐
459 loading etc.).
460 -Sp Try to be GPC (GNU Pascal Compiler) compatible.
462 -Ss The name of constructors must be "init", and the name of
464 destructors should be "done".
465 -St Allow the "static" keyword in objects.
467 -Un Do not check the unit name. Normally, the unit name is
469 the same as the filename. This option allows both to be
470 different.
471 -Ur Create a release unit. This sets a special flag in the
473 unit, causing the compiler not to look for sources.
474 -Us Compile a system unit. This option causes the compiler to
476 define only some very basic types.
477
480 fpc.cfg(5) ppdep(1) ppudump(1) ppumove(1) ptop(1) h2pas(1) ld(1)
481 as(1)
482Free Pascal 22 feb 2002 fpc(1)