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Thu, 16 May 2024 11:20:29 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id 0A/3I/3rRWZbZwAAD6G6ig (envelope-from ); Thu, 16 May 2024 11:20:29 +0000 From: Petr Vorel To: ltp@lists.linux.it Date: Thu, 16 May 2024 13:20:16 +0200 Message-ID: <20240516112016.309145-2-pvorel@suse.cz> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240516112016.309145-1-pvorel@suse.cz> References: <20240516112016.309145-1-pvorel@suse.cz> MIME-Version: 1.0 X-Spam-Level: X-Spamd-Result: default: False [-3.01 / 50.00]; BAYES_HAM(-3.00)[100.00%]; NEURAL_HAM_LONG(-1.00)[-1.000]; MID_CONTAINS_FROM(1.00)[]; R_MISSING_CHARSET(0.50)[]; NEURAL_HAM_SHORT(-0.20)[-1.000]; R_DKIM_ALLOW(-0.20)[suse.cz:s=susede2_rsa,suse.cz:s=susede2_ed25519]; MIME_GOOD(-0.10)[text/plain]; MX_GOOD(-0.01)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; ARC_NA(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; MIME_TRACE(0.00)[0:+]; RBL_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:104:10:150:64:97:from]; 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These info were omitted when converted from GitHub asciidoc wiki format. Fixes: 4a72aada8 ("New LTP documentation") Signed-off-by: Petr Vorel --- doc/developers/api_c_tests.rst | 7 +++++ doc/developers/ltp_library.rst | 47 ++++++++++++++++++++++++++++++++-- 2 files changed, 52 insertions(+), 2 deletions(-) diff --git a/doc/developers/api_c_tests.rst b/doc/developers/api_c_tests.rst index ec53ab33c..c7e1a5997 100644 --- a/doc/developers/api_c_tests.rst +++ b/doc/developers/api_c_tests.rst @@ -12,6 +12,13 @@ Core LTP API .. kernel-doc:: ../../include/tst_res_flags.h .. kernel-doc:: ../../include/tst_test.h +LAPI headers +------------ + +Use our LAPI headers (``include "lapi/foo.h"``) to keep compatibility with old +distributions. LAPI header should always include original header. For more info +see :doc:`../developers/ltp_library`. + Option parsing -------------- diff --git a/doc/developers/ltp_library.rst b/doc/developers/ltp_library.rst index 723781feb..15dde8e7b 100644 --- a/doc/developers/ltp_library.rst +++ b/doc/developers/ltp_library.rst @@ -9,8 +9,51 @@ General Rules When we extend library API, we need to apply the same general rules that we use when writing tests, plus: -#. LTP library tests must go inside :master:`lib/newlib_tests` directory -#. LTP documentation has to be updated according to API changes +#. LTP library tests must go inside :master:`lib/newlib_tests` directory. +#. LTP documentation has to be updated according to API changes. +#. Environment variables should be listed in :doc:`../users/setup_tests`. + +C API +----- + +LAPI headers +~~~~~~~~~~~~ + +Use our LAPI headers (``include "lapi/foo.h"``) to keep compatibility with old +distributions. LAPI header should always include original header. Older linux +headers were problematic, therefore we preferred to use libc headers. There are +still some bugs when combining certain glibc headers with linux headers, see +https://sourceware.org/glibc/wiki/Synchronizing_Headers. + +Rules checked with ``make check`` +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +LTP-001: Sources have ``tst_`` prefix +""""""""""""""""""""""""""""""""""""" + +API source code is in headers in ``include/{empty}*.h``, +``include/lapi/{empty}*.h`` (backward compatibility for old kernel and libc) +and C sources in ``lib/{empty}*.c``. Files have ``tst_`` prefix. + +LTP-002: TST_RET and TST_ERR are not modified +""""""""""""""""""""""""""""""""""""""""""""" + +The test author is guaranteed that the test API will not modify these +variables. This prevents silent errors where the return value and +errno are overwritten before the test has chance to check them. + +The macros which are clearly intended to update these variables. That +is ``TEST`` and those in 'tst_test_macros.h'. Are of course allowed to +update these variables. + +LTP-003: Externally visible library symbols have the ``tst_`` prefix +"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" + +Functions, types and variables in the public test API should have the +``tst_`` prefix. With some exceptions for symbols already prefixed with +``safe_`` or ``ltp_``. + +Static (private) symbols should not have the prefix. Shell API ---------