Using and Porting GNU CC for version 2.95 by Richard M. Stallman

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Published by Free Software Foundation .

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The Physical Object
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Open LibraryOL8682780M
ISBN 101882114388
ISBN 109781882114382

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An excellent book on addressing the excellent GNU C compiler. As the previous edition, the author give us enough detial information on porting Gnu CC for different platform. I like the porting part of this book since it is the unique book in this field. For using GNU CC, yeah, you had better ask Richard Stallman, since he know more than others /5(2).

Using and Porting GNU CC: for version Paperback – July 1, by Richard Stallman (Author)/5(2). Using and Porting GNU CC for Version on *FREE* shipping on qualifying offers.

Book by. Using and Porting the GNU Compiler Collection (GCC) This manual documents how to run, install and port the GNU compiler, as well as its new features and incompatibilities, and how to report bugs.

It corresponds to GCC version GAS is also needed to compile `libgcc2' in order to build `gcclib' (see above); `' expects to be able to find it operational in `gnu_cc:[]'.

To use GNU CC on VMS, you need the VMS driver programs `', `', and `'. They are distributed with the VMS binaries (`gcc-vms') rather than the GNU CC sources. below). A copy of the license is included in the section entitled “GNU Free Documentation License”.

(a) The FSF’s Front-Cover Text is: A GNU Manual (b) The FSF’s Back-Cover Text is: You have freedom to copy and modify this GNU Manual, like GNU software.

Copies published by the Free Software Foundation raise funds for GNU development. Series: Using and Porting the GNU Compiler Collection (Book 1) Paperback: pages; Publisher: Iuniverse Inc (August 1, ) Language: English; ISBN ; ISBN ; Product Dimensions: x x inches Shipping Weight: ounces; Customer Reviews: Be the first to write a reviewAuthor: Richard Stallman.

\GCC" is a common shorthand term for the GNU Compiler Collection. This is both the most general name for the compiler, and the name used when the emphasis is on compiling C programs (as the abbreviation formerly stood for \GNU C Compiler").

When referring to C++compilation, it is usual to call the compiler \G++". Since there is. If you want to install libraries to use with the cross-compiler, such as a standard C library, put them in the directory `/usr/local/target/lib'; installation of GNU CC copies all the files in that subdirectory into the proper place for GNU CC to find them and link with them.

Here's an example of copying some libraries from a target machine. The first prefix is the `GNU_CC_INCLUDE:' logical name: this is where GNU C header files are traditionally stored. If you wish to store header files in non-standard locations, then you can assign the logical `GNU_CC_INCLUDE' to be a search list, where each element of the list is suitable for use with a rooted logical.

Using and Porting the GNU Compiler Collection (GCC) - free book at E-Books Directory. You can download the book or read it online. It Using and Porting GNU CC book made freely available by its author and publisher.

Using and Porting the GNU Compiler Collection (GCC). Installing GNU CC on VMS. The VMS version of GNU CC is distributed in a backup saveset containing both source code and precompiled binaries.

To install the `gcc' command so you can use the compiler easily, in the same manner as you use the VMS C compiler, you must install the VMS CLD file for GNU CC as follows. Define the VMS logical names `GNU_CC' and `GNU_CC_INCLUDE' to point to the.

Using and Porting the GNU Compiler Collection (GCC): C Extensions: 4. Extensions to the C Language Family. GNU C provides several language features not found in ANSI standard C.

(The `-pedantic' option directs GNU CC to print a warning message if any of these features is used.) To test for the availability of these features in.

Using and Porting GNU CC - Standard Names Go to the first, previous, next, last section, table Using and Porting GNU CC book contents. Standard Pattern Names For Generation Here is a table of the instruction names that are meaningful in the RTL generation pass of the compiler.

The Configuration File. The configuration file `xm-machine.h' contains macro definitions that describe the machine and system on which the compiler is running, unlike the definitions in `machine.h', which describe the machine for which the compiler is producing of the values in `xm-machine.h' are actually the same on all machines that GNU CC runs on, so large parts of all.

GNU CC Command Options. When you invoke GNU CC, it normally does preprocessing, compilation, assembly and linking. The "overall options" allow you to stop this process at an intermediate stage. For example, the `-c' option says not to run the linker.

Then the. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public License applies to most of the Free Software Foundation's software and to any other program whose authors commit to using it.

Machine Modes. A machine mode describes a size of data object and the representation used for it. In the C code, machine modes are represented by an enumeration type, enum machine_mode, defined in `'.Each RTL expression has room for a machine mode and so do certain kinds of tree expressions (declarations and types, to be precise).

Node:Invoking G++, Next:C Dialect Options, Previous:Overall Options, Up:Invoking GCC Compiling C++ Programs. C++ source files conventionally use one of the, ; preprocessed C++ files use the recognizes files with these names and compiles them as C++ programs even if you call the compiler the same way as for compiling C programs (usually.

On SCO systems, when compiling GCC with the system's compiler, do not use `-O'.Some versions of the system's compiler miscompile GCC with `-O'. Sometimes on a Sun 4 you may observe a crash in the program genflags or genoutput while building GCC.

This is said to be due to a bug in can probably get around it by running genflags or genoutput manually and then retrying the make.

In this manual, we only discuss the options for the C, Objective-C, and C++ compilers and those of the GNU CC core. Consult the documentation of the other front ends for the options to use when compiling programs written in other languages.

G++ is a compiler, not merely a preprocessor. G++ builds object code directly from your C++ program source. Various optimizations or reloading could cause operands 0 and 1 to be in different registers; GNU CC knows no reason not to do so.

For example, the compiler might find a copy of the value of foo in one register and use it for operand 1, but generate the output operand 0 in a different register (copying it afterward to foo's own address).Of course, since the register for operand 1 is not even. Using and Porting the GNU Compiler Collection (GCC): Interface So this change is practical only if you are switching to GCC as the sole C compiler for the system.

We may implement register argument passing on certain machines once we have a complete GNU. GNU CC aims towards being usable as a conforming freestanding implementation, or as the compiler for a conforming hosted implementation.

By default, it will act as the compiler for a hosted implementation, defining __STDC_HOSTED__ as 1 and presuming that when the names of ISO C functions are used, they have the semantics defined in the standard. Using and Porting the GNU Compiler Collection (GCC) - Index Go to the first, previous, next, last section, table of contents.


Contributors to GNU CC; Funding Free Software; Protect Your Freedom--Fight "Look And Feel" Compile C, C++, or Objective C; GNU CC Command Options.

Option Summary. Go to the previous section. Index. `!' in constraint `#' in constraint # in template #pragma; #pragma implementation, implied; #pragma, reason for not using `%' in constraint `%' in template `&' in constraint * `*' in constraint * in template `+' in constraint-lgcc, use with -nostdlib-nostdlib and unresolved references `/i' in RTL dump `/s' in RTL dump `/u' in RTL dump `/v' in RTL dump.

Using "general_operand" would be valid, since the reload pass would copy any non-register operands through registers, but this would make GNU CC do extra work, it would prevent invariant operands (such as constant) from being removed from loops, and it would prevent the register allocator from doing the best possible job.

That directs GNU CC to use an alternate strategy: to allocate the entire argument block and then store the arguments into it. On some machines, the definition #define PUSH_ROUNDING(BYTES) (BYTES) will suffice. But on other machines, instructions that appear to push one byte actually push two bytes in an attempt to maintain alignment.

Then the. The bug in the Pyramid C compiler does not seem to affect GNU CC version 1. There may be similar problems on System V Release on systems. On the Intel Paragon (an i machine), if you are using operating system versionyou will get warnings or errors about redefinition of va_arg when you build GNU CC.

GNU CC will test for both slash and the character you specify when parsing filenames. In addition, configuration files for system V define bcopy, bzero and bcmp as aliases.

Some files define alloca as a macro when compiled with GNU CC, in order to take advantage of the benefit of GNU CC's built-in alloca. Go to the previous, next section. This flag also enables use of the full SPARC v8 instruction set.

These options are deprecated and will be deleted in GNU CC They have been replaced with `-mcpu=xxx'. -mcpu=cpu_type Set the instruction set, register set, and instruction scheduling parameters for machine type cpu_type.

Using and Porting the GNU Compiler Collection (GCC): C Dialect Options For the C compiler, it disables recognition of C++ style `//' comments as well as the inline keyword. The alternate keywords __asm__, You may want to use the `-fno-gnu-keywords'.

Ulrich Drepper for his work on the C++ runtime libraries, glibc, testing of GCC using glibc, ISO C99 support, CFG dumping support, etc. Richard Earnshaw for his ongoing work with the ARM. David Edelsohn for his direction via the steering committee, ongoing work with the RS/PowerPC port, and help cleaning up Haifa loop changes.

Produce debugging information in DWARF version 1 format (if that is supported), using GNU extensions understood only by the GNU debugger (GDB). The use of these extensions is likely to make other debuggers crash or refuse to read the program. -gdwarf-2 Produce debugging information in DWARF version 2 format (if that is supported).

This allows you to use them in header files without being concerned about a possible macro of the same name. For example, you may use __noreturn__ instead of noreturn.

noreturn A few standard library functions, such as abort and exit, cannot return. GNU CC knows this automatically. Some programs define their own functions that never return. You can use a different order for a machine if doing so is more convenient or required for compatibility reasons.

Except in cases where required by standard or by a debugger, there is no reason why the stack layout used by GCC need agree with that used by other compilers for a machine. In that case, GNU CC will use only the instructions in the common subset of both architectures plus some special AIX common-mode calls, and will not use the MQ register.

GNU CC assumes a generic processor model for scheduling purposes. Specifying `-mcpu=rios1', `-mcpu=rios2', `-mcpu=rsc', or `-mcpu=power' also disables the `new-mnemonics' option. GNU CC cannot understand what the asm statement may do, and therefore cannot generate the appropriate code, so it will reject it.

However, if you specify the function attribute no_check_memory_usage (see section Declaring Attributes of Functions), GNU CC will disable memory checking within a function; you may use asm statements inside.

Using and Porting the GNU Compiler Collection (GCC): Other Builtins: Other built-in functions provided by GNU CC. GNU CC provides a large number of built-in functions other than the ones mentioned above. Some of these are for internal use in the processing of exceptions or variable-length argument lists and will not be documented here.

When configured as a native compiler, GNU CC tries the directories thus specified when searching for special linker files, if it can't find them using GCC_EXEC_PREFIX. Linking using GNU CC also uses these directories when searching for ordinary libraries for the `-l' option (but directories specified with ` .Using and Porting the GNU Compiler Collection (GCC) Compile C, C++, Objective C, or Fortran; GCC Command Options.

Option Summary; Options Controlling the Kind of Output.Using and Porting the GNU Compiler Collection (GCC): Environment Variables Environment Variables Affecting GCC GNU CC will attempt to figure out an appropriate prefix to use based on the pathname it was invoked with.

If GCC cannot find the subprogram using the specified prefix, it tries looking in the usual places for the subprogram.

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