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5.1.4 Options controlling the kind of output.

for more information on these options, see also Programmers guide

-a
Tells the compiler not to delete the assembler les it generates (not when using the internal assembler). This also counts for the (possibly) generated batch script.
-al
Tells the compiler to include the sourcecode lines in the assembler le as comments.
-an
Tells the compiler to write node information in the assember le (nodes are the way the compiler represents statements or parts thereof internally). This is primarily intended for debugging the code generated by the compiler.
-ap
use pipes instead of creating temporary assembler les. This may speed up the compiler on os/2 and linux. Only with assemblers (such as gnu if the internal assembler is used.
-ar
tells the compiler to list register allocation and release info in the assembler le. This is primarily intended for debugging the code generated by the compiler.
-at
tells the compiler to list information about temporary allocations and deallocations in the assembler le.
-Axxx
species what kind of assembler should be generated . Here xxx is one of the following :
default
use the built-in default.
as
assemble using gnu as.
nasmco
co (Go32v2) le using Nasm.
nasmelf
elf32 (Linux) le using Nasm.
nasmwin32
Windows 32-bit le using Nasm.
nasmwdosx
Windows 32-bit/DOSX le using Nasm.
nasmobj
object le using Nasm.
masm
object le using Masm (Microsoft).
tasm
object le using Tasm (Borland).
elf
elf32 (Linux) using internal writer.
co
co object le (Go32v2) using the internal binary object writer.
peco
peco object le (Win32) using the internal binary object writer.
-B
tells the compiler to re-compile all used units, even if the unit sources didn't change since the last compilation.
-b
tells the compiler to generate browser info. This information can be used by an Integrated Development Environment (IDE) to provide information on classes, objects, procedures, types and variables in a unit.
-bl
is the same as -b but also generates information about local variables, types and procedures.
-Cc
set the default calling convention used by the compiler.
-CD
Create a dynamic library. This is used to transform units into dynamically linkable libraries on linux.
-Ce
Emulate oating point operations.
-CfXXX
set the used oating point processor.
-Cg
enable generation of PIC code.
-Chxxx
Reserves xxx bytes heap. xxx should be between 1024 and 67107840.
-Ci
Generate Input/Output checking code. In case some input/output code of your program returns an error status, the program will exit with a run-time error. Which error is generated depends on the I/O error.
-Cn
Omit the linking stage.
-Co
Generate Integer overow checking code. In case of integer errors, a run-time error will be generated by your program.
-CpXXX
set the processor type to XXX
-Cr
Generate Range checking code. In case your program acesses an array element with an invalid index, or if it increases an enumerated type beyond it's scope, a run-time error will be generated.
-CR
Generate checks when calling methods to verify if the virtual method table for that object is valid.
-Csxxx
Set stack size to xxx.
-Ct
generate stack checking code. In case your program performs a faulty stack operation, a run-rime error will be generated.
-CX
Create a smartlinked unit when writing a unit. smartlinking will only link in the code parts that are actually needed by the program. All unused code is left out. This can lead to substantially smaller binaries.
-dxxx
Dene the symbol name xxx. This can be used to conditionally compile parts of your code.
-D
generate a DEF le (for OS/2)
-Dd
set the description of the executable/library (Windows)
-Dv
set the version of the executable/library (Windows)
-E Same as -Cn.
-g
Generate debugging information for debugging with gdb
-gc
generate checks for pointers. This must be used with the -gh command-line option. When this options is enabled, it will verify that all pointer accesses are within the heap.
-gd
generate debugging info for dbx.
-gg
idem as -g.
-gh
use the heaptrc unit (see Unit reference). (produces a report about heap usage after the program exits)
-gl
use the lineinfo unit (see Unit reference). (produces le name/line number information if the program exits due to an error.)
-gv
emit info for valgrind.
-gw
emit dwarf debugging info.
-kxxx
pass xxx to the linker.
-Oxxx
optimize the compiler's output; xxx can have one of the following values :
a
specify alignment of structures.
g
optimize for size, try to generate smaller code.
G
optimize for time, try to generate faster code (default).
r
keep certain variables in registers (experimental, use with caution).
u
Uncertain optimizations
1
Level 1 optimizations (quick optimizations).
2
Level 2 optimizations (-O1 plus some slower optimizations).
3
Level 3 optimizations (-O2 plus -Ou).
Pn
(Intel only) Specify processor: n can be one of
1
optimize for 386/486
2
optimize for Pentium/PentiumMMX (tm)
3
optimizations for PentiumPro/PII/Cyrix 6x86/K6 (tm)

The exact eect of these optimizations can be found in the Programmers guide.

-oxxx
Tells the compiler to use xxx as the name of the output le (executable). Only with programs.
-pg
Generate proler code for gprof. This will dene the symbol FPC_PROFILE, which can be used in conditional denes.
-s
Tells the compiler not to call the assembler and linker. Instead, the compiler writes a script, PPAS.BAT under dos, or ppas.sh under linux, which can then be executed to produce an executable. This can be used to speed up the compiling process or to debug the compiler's output. This option can take some extra parameter, mainly used for cross-compilation. It can have one of the following values:
h
Generate script to link on host. The generated script can be run on the compilation platform (host platform).
t
Generate script to link on target platform. The generated script can be run on the target platform. (where the binary must be run)
r
Skip register allocation phase (optimizations will be disabled).
-Txxx
Species the target operating system. xxx can be one of the following:
-uxxx
Undene the symbol xxx. This is the opposite of the -d option.
-Ur
Generate release unit les. These les will not be recompiled, even when the sources are available. This is useful when making release distributions. This also overrides the -B option for release mode units.
-W
set some Windows or os/2 attributes of the generated binary. It can be one or more of the following
Bhhh
set preferred base address to hhh (a hexadecimal address)
C
Generate a console application (+) or a gui application (-).
D
Force use of Def le for exports.
F
Generate a FS application (+) or a console application (-).
G
Generate a GUI application (+) or a console application (-).
N
Do not generate relocation section.
R
Generate a relocation section.
T
Generate a TOOL application (+) or a console application (-).
-Xx
executable options. This tells the compiler what kind of executable should be generated. the parameter x can be one of the following:

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