-@c Copyright (C) 2002, 2003 Free Software Foundation, Inc.
+@c Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
@c This is part of the GCC manual.
@c For copying conditions, see the file gcc.texi.
* Configure Terms:: Configuration terminology and history.
* Top Level:: The top level source directory.
* gcc Directory:: The @file{gcc} subdirectory.
-* Test Suites:: The GCC test suites.
+* Testsuites:: The GCC testsuites.
@end menu
@include configterms.texi
@item gcc
The main sources of GCC itself (except for runtime libraries),
including optimizers, support for different target architectures,
-language front ends, and test suites. @xref{gcc Directory, , The
+language front ends, and testsuites. @xref{gcc Directory, , The
@file{gcc} Subdirectory}, for details.
@item include
Headers for the @code{libiberty} library.
+@item libada
+The Ada runtime library.
+
+@item libbanshee
+The @code{libbanshee} library, used for Andersen-style points-to analysis.
+
@item libf2c
+The Fortran 77 runtime library.
+
+@item libgfortran
The Fortran runtime library.
@item libffi
@item libjava
The Java runtime library.
+@item libmudflap
+The @code{libmudflap} library, used for instrumenting pointer and array
+dereferencing operations.
+
@item libobjc
The Objective-C runtime library.
The @file{gcc} directory contains many files that are part of the C
sources of GCC, other files used as part of the configuration and
build process, and subdirectories including documentation and a
-test suite. The files that are sources of GCC are documented in a
+testsuite. The files that are sources of GCC are documented in a
separate chapter. @xref{Passes, , Passes and Files of the Compiler}.
@menu
which messages should not be extracted.
@item testsuite
-The GCC test suites (except for those for runtime libraries).
-@xref{Test Suites}.
+The GCC testsuites (except for those for runtime libraries).
+@xref{Testsuites}.
@end table
@node Configuration
the top level one) used?
@item The file @file{config.gcc} is used to handle configuration
-specific to the particular target machine. The file
-@file{config.build} is used to handle configuration specific to the
+specific to the particular target machine. The file
+@file{config.build} is used to handle configuration specific to the
particular build machine. The file @file{config.host} is used to handle
configuration specific to the particular host machine. (In general,
these should only be used for features that cannot reasonably be tested in
@file{config} to be installed on some systems.
GCC installs its own version of @code{<float.h>}, from @file{ginclude/float.h}.
-This is done to cope with command-line options that change the
+This is done to cope with command-line options that change the
representation of floating point numbers.
GCC also installs its own version of @code{<limits.h>}; this is generated
A mention of the language in the list of supported languages in
@file{gcc/doc/install.texi}.
@item
+A mention of the name under which the language's runtime library is
+recognized by @option{--enable-shared=@var{package}} in the
+documentation of that option in @file{gcc/doc/install.texi}.
+@item
+A mention of any special prerequisites for building the front end in
+the documentation of prerequisites in @file{gcc/doc/install.texi}.
+@item
Details of contributors to that front end in
@file{gcc/doc/contrib.texi}. If the details are in that front end's
own manual then there should be a link to that manual's list in
Entries in @code{default_compilers} in @file{gcc.c} for source file
suffixes for that language.
@item
-Preferably test suites, which may be under @file{gcc/testsuite} or
+Preferably testsuites, which may be under @file{gcc/testsuite} or
runtime library directories. FIXME: document somewhere how to write
-test suite harnesses.
+testsuite harnesses.
@item
Probably a runtime library for the language, outside the @file{gcc}
directory. FIXME: document this further.
Build an @command{etags} @file{TAGS} file in the language subdirectory
in the source tree.
@item info
-Build info documentation for the front end, in the source directory.
+Build info documentation for the front end, in the build directory.
This target is only called by @samp{make bootstrap} if a suitable
version of @command{makeinfo} is available, so does not need to check
-for this, and should fail if an error occurs. This hook is a
-double-colon hook.
+for this, and should fail if an error occurs.
@item dvi
Build DVI documentation for the front end, in the build directory.
This should be done using @code{$(TEXI2DVI)}, with appropriate
@option{-I} arguments pointing to directories of included files.
This hook is a double-colon hook.
-@item generated-manpages
+@item man
Build generated man pages for the front end from Texinfo manuals
-(@pxref{Man Page Generation}), in the source directory. This target
+(@pxref{Man Page Generation}), in the build directory. This target
is only called if the necessary tools are available, but should ignore
errors so as not to stop the build if errors occur; man pages are
optional and the tools involved may be installed in a broken way.
-This hook is a double-colon hook.
@item install-normal
FIXME: what is this target for?
@item install-common
@item install-man
Install man pages for the front end. This target should ignore
errors.
+@item srcextra
+Copies its dependencies into the source directory. This generally should
+be used for generated files such as @file{gcc/c-parse.c} which are not
+present in CVS, but should be included in any release tarballs. This
+target will be executed during a bootstrap if
+@samp{--enable-generated-files-in-srcdir} was specified as a
+@file{configure} option.
+@item srcinfo
+@itemx srcman
+Copies its dependencies into the source directory. These targets will be
+executed during a bootstrap if @samp{--enable-generated-files-in-srcdir}
+was specified as a @file{configure} option.
@item uninstall
Uninstall files installed by installing the compiler. This is
currently documented not to be supported, so the hook need not do
gengtype.c to generate the garbage collection tables and routines for
this language. This excludes the files that are common to all front
ends. @xref{Type Information}.
+@item need_gmp
+If defined to @samp{yes}, this frontend requires the GMP library.
+Enables configure tests for GMP, which set @code{GMPLIBS} and
+@code{GMPINC} appropriately.
@end table
An entry for the target architecture in @file{readings.html} on the
GCC web site, with any relevant links.
@item
+Details of the properties of the back end and target architecture in
+@file{backends.html} on the GCC web site.
+@item
A news item about the contribution of support for that target
architecture, in @file{index.html} on the GCC web site.
@item
a maintainer when support is added.
@end itemize
-@node Test Suites
-@section Test Suites
+@node Testsuites
+@section Testsuites
-GCC contains several test suites to help maintain compiler quality.
-Most of the runtime libraries and language front ends in GCC have test
-suites. Currently only the C language test suites are documented
+GCC contains several testsuites to help maintain compiler quality.
+Most of the runtime libraries and language front ends in GCC have
+testsuites. Currently only the C language testsuites are documented
here; FIXME: document the others.
@menu
-* Test Idioms:: Idioms used in test suite code.
-* Ada Tests:: The Ada language test suites.
-* C Tests:: The C language test suites.
-* libgcj Tests:: The Java library test suites.
+* Test Idioms:: Idioms used in testsuite code.
+* Ada Tests:: The Ada language testsuites.
+* C Tests:: The C language testsuites.
+* libgcj Tests:: The Java library testsuites.
* gcov Testing:: Support for testing gcov.
* profopt Testing:: Support for testing profile-directed optimizations.
* compat Testing:: Support for testing binary compatibility.
@end menu
@node Test Idioms
-@subsection Idioms Used in Test Suite Code
-
-In the @file{gcc.c-torture} test suites, test cases are commonly named
-after the date on which they were added. This allows people to tell
-at a glance whether a test failure is because of a recently found bug
-that has not yet been fixed, or whether it may be a regression. In
-other test suites, more descriptive names are used. In general C test
-cases have a trailing @file{-@var{n}.c}, starting with @file{-1.c}, in
-case other test cases with similar names are added later.
-
-Test cases should use @code{abort ()} to indicate failure and
-@code{exit (0)} for success; on some targets these may be redefined to
-indicate failure and success in other ways.
-
-In the @file{gcc.dg} test suite, it is often necessary to test that an
+@subsection Idioms Used in Testsuite Code
+
+In general C testcases have a trailing @file{-@var{n}.c}, starting
+with @file{-1.c}, in case other testcases with similar names are added
+later. If the test is a test of some well-defined feature, it should
+have a name referring to that feature such as
+@file{@var{feature}-1.c}. If it does not test a well-defined feature
+but just happens to exercise a bug somewhere in the compiler, and a
+bug report has been filed for this bug in the GCC bug database,
+@file{pr@var{bug-number}-1.c} is the appropriate form of name.
+Otherwise (for miscellaneous bugs not filed in the GCC bug database),
+and previously more generally, test cases are named after the date on
+which they were added. This allows people to tell at a glance whether
+a test failure is because of a recently found bug that has not yet
+been fixed, or whether it may be a regression, but does not give any
+other information about the bug or where discussion of it may be
+found. Some other language testsuites follow similar conventions.
+
+In the @file{gcc.dg} testsuite, it is often necessary to test that an
error is indeed a hard error and not just a warning---for example,
where it is a constraint violation in the C standard, which must
become an error with @option{-pedantic-errors}. The following idiom,
appropriate code to avoid causing failures on unsupported systems;
unfortunately, the mechanisms for this differ by directory.
-FIXME: discuss non-C test suites here.
+FIXME: discuss non-C testsuites here.
@node Ada Tests
-@subsection Ada Language Test Suites
+@subsection Ada Language Testsuites
-The Ada test suite includes executable tests from the ACATS 2.5 test
-suite, publicly available at @uref{http://www.adaic.org/compilers/acats/2.5}
+The Ada testsuite includes executable tests from the ACATS 2.5
+testsuite, publicly available at
+@uref{http://www.adaic.org/compilers/acats/2.5}
-These tests are integrated in the GCC test suite in the
+These tests are integrated in the GCC testsuite in the
@file{gcc/testsuite/ada/acats} directory, and
enabled automatically when running @code{make check}, assuming
the Ada language has been enabled when configuring GCC.
-You can also run the Ada test suite independently, using
+You can also run the Ada testsuite independently, using
@code{make check-ada}, or run a subset of the tests by specifying which
chapter to run, e.g:
a @code{make install}.
@node C Tests
-@subsection C Language Test Suites
+@subsection C Language Testsuites
-GCC contains the following C language test suites, in the
+GCC contains the following C language testsuites, in the
@file{gcc/testsuite} directory:
@table @file
@item gcc.dg
-This contains tests of particular features of the C compiler, using the
+This contains tests of particular features of the C compiler, using the
more modern @samp{dg} harness. Correctness tests for various compiler
features should go here if possible.
-Magic comments determine whether the file
-is preprocessed, compiled, linked or run. In these tests, error and warning
-message texts are compared against expected texts or regular expressions
+Magic comments determine whether the file
+is preprocessed, compiled, linked or run. In these tests, error and warning
+message texts are compared against expected texts or regular expressions
given in comments. These tests are run with the options @samp{-ansi -pedantic}
unless other options are given in the test. Except as noted below they
are not run with multiple optimization options.
This contains particular code fragments which have historically broken easily.
These tests are run with multiple optimization options, so tests for features
which only break at some optimization levels belong here. This also contains
-tests to check that certain optimizations occur. It might be worthwhile to
+tests to check that certain optimizations occur. It might be worthwhile to
separate the correctness tests cleanly from the code quality tests, but
it hasn't been done yet.
This directory should probably not be used for new tests.
@item gcc.c-torture/compile
-This test suite contains test cases that should compile, but do not
+This testsuite contains test cases that should compile, but do not
need to link or run. These test cases are compiled with several
different combinations of optimization options. All warnings are
disabled for these test cases, so this directory is not suitable if
should not contain platform dependencies. FIXME: discuss how defines
such as @code{NO_LABEL_VALUES} and @code{STACK_SIZE} are used.
@item gcc.c-torture/execute
-This test suite contains test cases that should compile, link and run;
+This testsuite contains test cases that should compile, link and run;
otherwise the same comments as for @file{gcc.c-torture/compile} apply.
@item gcc.c-torture/execute/ieee
This contains tests which are specific to IEEE floating point.
test cases and magic comments more.
@node libgcj Tests
-@subsection The Java library test suites.
+@subsection The Java library testsuites.
Runtime tests are executed via @samp{make check} in the
@file{@var{target}/libjava/testsuite} directory in the build
tree. Additional runtime tests can be checked into this testsuite.
Regression testing of the core packages in libgcj is also covered by the
-Mauve test suite. The @uref{http://sources.redhat.com/mauve/,,Mauve Project}
+Mauve testsuite. The @uref{http://sources.redhat.com/mauve/,,Mauve Project}
develops tests for the Java Class Libraries. These tests are run as part
of libgcj testing by placing the Mauve tree within the libjava testsuite
sources at @file{libjava/testsuite/libjava.mauve/mauve}, or by specifying
bugs in libgcj that had caused Mauve test failures.
The @uref{http://oss.software.ibm.com/developerworks/opensource/jacks/,,
-Jacks} project provides a test suite for Java compilers that can be used
-to test changes that affect the GCJ front end. This test suite is run as
+Jacks} project provides a testsuite for Java compilers that can be used
+to test changes that affect the GCJ front end. This testsuite is run as
part of Java testing by placing the Jacks tree within the the libjava
testsuite sources at @file{libjava/testsuite/libjava.jacks/jacks}.
@table @code
@item tool
-tool being tested, e.g., gcc
+tool being tested, e.g., @command{gcc}
@item profile_option
options used to generate profile data
@subsection Support for testing binary compatibility
The file @file{compat.exp} provides language-independent support for
-binary compatibility testing. It supports testing interoperability
-of two compilers that follow the same ABI, or of multiple sets of
-compiler options that should not affect binary compatibility.
-It is intended to be used for test suites that complement ABI test
-suites.
+binary compatibility testing. It supports testing interoperability of
+two compilers that follow the same ABI, or of multiple sets of
+compiler options that should not affect binary compatibility. It is
+intended to be used for testsuites that complement ABI testsuites.
A test supported by this framework has three parts, each in a
separate source file: a main program and two pieces that interact
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