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https://github.com/samba-team/samba.git
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493fe1a431
build_options.c is inefficient in multiple ways: 1) it's generated via one python fp.write() call per line 2) the generated code calls output() for each and every build option This commit addresses (2), modifying write_build_options_header() and write_build_options_footer(). write_build_options_section() could also be collapsed into a single output() call, but this may lead to oversize string literals, so has been left as is. I observe no change in smbd --build-options output. Signed-off-by: David Disseldorp <ddiss@samba.org> Reviewed-by: Andreas Schneider <asn@samba.org> Autobuild-User(master): David Disseldorp <ddiss@samba.org> Autobuild-Date(master): Mon Jan 17 13:17:53 UTC 2022 on sn-devel-184
235 lines
11 KiB
Python
235 lines
11 KiB
Python
# a waf tool to add extension based build patterns for Samba
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import sys
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from waflib import Build
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from wafsamba import samba_version_file
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def write_version_header(task):
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'''print version.h contents'''
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src = task.inputs[0].srcpath(task.env)
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version = samba_version_file(src, task.env.srcdir, env=task.env, is_install=task.generator.bld.is_install)
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string = str(version)
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task.outputs[0].write(string)
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return 0
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def SAMBA_MKVERSION(bld, target, source='VERSION'):
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'''generate the version.h header for Samba'''
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# We only force waf to re-generate this file if we are installing,
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# because only then is information not included in the deps (the
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# git revision) included in the version.
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t = bld.SAMBA_GENERATOR('VERSION',
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rule=write_version_header,
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group='setup',
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source=source,
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target=target,
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always=bld.is_install)
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Build.BuildContext.SAMBA_MKVERSION = SAMBA_MKVERSION
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def write_build_options_header(fp):
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'''write preamble for build_options.c'''
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fp.write("/*\n"
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" Unix SMB/CIFS implementation.\n"
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" Build Options for Samba Suite\n"
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" Copyright (C) Vance Lankhaar <vlankhaar@linux.ca> 2003\n"
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" Copyright (C) Andrew Bartlett <abartlet@samba.org> 2001\n"
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"\n"
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" This program is free software; you can redistribute it and/or modify\n"
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" it under the terms of the GNU General Public License as published by\n"
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" the Free Software Foundation; either version 3 of the License, or\n"
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" (at your option) any later version.\n"
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"\n"
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" This program is distributed in the hope that it will be useful,\n"
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" but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
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" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
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" GNU General Public License for more details.\n"
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"\n"
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" You should have received a copy of the GNU General Public License\n"
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" along with this program; if not, see <http://www.gnu.org/licenses/>.\n"
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"*/\n"
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"\n"
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"#include \"includes.h\"\n"
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"#include \"dynconfig/dynconfig.h\"\n"
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"#include \"lib/cluster_support.h\"\n"
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"\n"
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"static int output(bool screen, const char *format, ...) PRINTF_ATTRIBUTE(2,3);\n"
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"void build_options(bool screen);\n"
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"\n"
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"\n"
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"/****************************************************************************\n"
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"helper function for build_options\n"
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"****************************************************************************/\n"
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"static int output(bool screen, const char *format, ...)\n"
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"{\n"
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" char *ptr = NULL;\n"
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" int ret = 0;\n"
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" va_list ap;\n"
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" \n"
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" va_start(ap, format);\n"
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" ret = vasprintf(&ptr,format,ap);\n"
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" va_end(ap);\n"
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"\n"
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" if (screen) {\n"
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" d_printf(\"%s\", ptr ? ptr : \"\");\n"
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" } else {\n"
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" DEBUG(4,(\"%s\", ptr ? ptr : \"\"));\n"
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" }\n"
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" \n"
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" SAFE_FREE(ptr);\n"
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" return ret;\n"
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"}\n"
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"\n"
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"/****************************************************************************\n"
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"options set at build time for the samba suite\n"
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"****************************************************************************/\n"
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"void build_options(bool screen)\n"
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"{\n"
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" if ((DEBUGLEVEL < 4) && (!screen)) {\n"
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" return;\n"
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" }\n"
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"\n"
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"\n"
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" /* Output various paths to files and directories */\n"
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" output(screen,\"\\nPaths:\\n\"\n"
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" \" SBINDIR: %s\\n\"\n"
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" \" BINDIR: %s\\n\"\n"
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" \" CONFIGFILE: %s\\n\"\n"
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" \" LOGFILEBASE: %s\\n\"\n"
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" \" LMHOSTSFILE: %s\\n\"\n"
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" \" LIBDIR: %s\\n\"\n"
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" \" DATADIR: %s\\n\"\n"
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" \" SAMBA_DATADIR: %s\\n\"\n"
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" \" MODULESDIR: %s\\n\"\n"
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" \" SHLIBEXT: %s\\n\"\n"
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" \" LOCKDIR: %s\\n\"\n"
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" \" STATEDIR: %s\\n\"\n"
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" \" CACHEDIR: %s\\n\"\n"
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" \" PIDDIR: %s\\n\"\n"
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" \" SMB_PASSWD_FILE: %s\\n\"\n"
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" \" PRIVATE_DIR: %s\\n\"\n"
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" \" BINDDNS_DIR: %s\\n\",\n"
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" get_dyn_SBINDIR(),\n"
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" get_dyn_BINDIR(),\n"
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" get_dyn_CONFIGFILE(),\n"
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" get_dyn_LOGFILEBASE(),\n"
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" get_dyn_LMHOSTSFILE(),\n"
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" get_dyn_LIBDIR(),\n"
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" get_dyn_DATADIR(),\n"
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" get_dyn_SAMBA_DATADIR(),\n"
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" get_dyn_MODULESDIR(),\n"
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" get_dyn_SHLIBEXT(),\n"
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" get_dyn_LOCKDIR(),\n"
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" get_dyn_STATEDIR(),\n"
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" get_dyn_CACHEDIR(),\n"
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" get_dyn_PIDDIR(),\n"
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" get_dyn_SMB_PASSWD_FILE(),\n"
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" get_dyn_PRIVATE_DIR(),\n"
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" get_dyn_BINDDNS_DIR());\n"
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"\n")
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def write_build_options_footer(fp):
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fp.write(" /* Output the sizes of the various cluster features */\n"
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" output(screen, \"\\n%s\", cluster_support_features());\n"
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"\n"
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" /* Output the sizes of the various types */\n"
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" output(screen, \"\\nType sizes:\\n\"\n"
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" \" sizeof(char): %lu\\n\"\n"
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" \" sizeof(int): %lu\\n\"\n"
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" \" sizeof(long): %lu\\n\"\n"
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" \" sizeof(long long): %lu\\n\"\n"
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" \" sizeof(uint8_t): %lu\\n\"\n"
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" \" sizeof(uint16_t): %lu\\n\"\n"
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" \" sizeof(uint32_t): %lu\\n\"\n"
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" \" sizeof(short): %lu\\n\"\n"
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" \" sizeof(void*): %lu\\n\"\n"
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" \" sizeof(size_t): %lu\\n\"\n"
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" \" sizeof(off_t): %lu\\n\"\n"
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" \" sizeof(ino_t): %lu\\n\"\n"
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" \" sizeof(dev_t): %lu\\n\",\n"
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" (unsigned long)sizeof(char),\n"
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" (unsigned long)sizeof(int),\n"
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" (unsigned long)sizeof(long),\n"
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" (unsigned long)sizeof(long long),\n"
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" (unsigned long)sizeof(uint8_t),\n"
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" (unsigned long)sizeof(uint16_t),\n"
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" (unsigned long)sizeof(uint32_t),\n"
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" (unsigned long)sizeof(short),\n"
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" (unsigned long)sizeof(void*),\n"
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" (unsigned long)sizeof(size_t),\n"
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" (unsigned long)sizeof(off_t),\n"
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" (unsigned long)sizeof(ino_t),\n"
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" (unsigned long)sizeof(dev_t));\n"
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"\n"
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" output(screen, \"\\nBuiltin modules:\\n\"\n"
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" \" %s\\n\", STRING_STATIC_MODULES);\n"
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"}\n")
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def write_build_options_section(fp, keys, section):
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fp.write("\n\t/* Show %s */\n" % section)
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fp.write(" output(screen, \"\\n%s:\\n\");\n\n" % section)
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for k in sorted(keys):
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fp.write("#ifdef %s\n" % k)
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fp.write(" output(screen, \" %s\\n\");\n" % k)
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fp.write("#endif\n")
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fp.write("\n")
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def write_build_options(task):
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tbl = task.env
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keys_option_with = []
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keys_option_utmp = []
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keys_option_have = []
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keys_header_sys = []
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keys_header_other = []
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keys_misc = []
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if sys.hexversion>0x300000f:
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trans_table = bytes.maketrans(b'.-()', b'____')
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else:
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import string
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trans_table = string.maketrans('.-()', '____')
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for key in tbl:
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if key.startswith("HAVE_UT_UT_") or key.find("UTMP") >= 0:
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keys_option_utmp.append(key)
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elif key.startswith("WITH_"):
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keys_option_with.append(key)
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elif key.startswith("HAVE_SYS_"):
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keys_header_sys.append(key)
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elif key.startswith("HAVE_"):
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if key.endswith("_H"):
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keys_header_other.append(key)
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else:
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keys_option_have.append(key)
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elif key.startswith("static_init_"):
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l = key.split("(")
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keys_misc.append(l[0])
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else:
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keys_misc.append(key.translate(trans_table))
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tgt = task.outputs[0].bldpath(task.env)
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f = open(tgt, 'w')
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write_build_options_header(f)
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write_build_options_section(f, keys_header_sys, "System Headers")
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write_build_options_section(f, keys_header_other, "Headers")
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write_build_options_section(f, keys_option_utmp, "UTMP Options")
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write_build_options_section(f, keys_option_have, "HAVE_* Defines")
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write_build_options_section(f, keys_option_with, "--with Options")
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write_build_options_section(f, keys_misc, "Build Options")
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write_build_options_footer(f)
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f.close()
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return 0
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def SAMBA_BLDOPTIONS(bld, target):
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'''generate the bld_options.c for Samba'''
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t = bld.SAMBA_GENERATOR(target,
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rule=write_build_options,
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dep_vars=['defines'],
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target=target)
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Build.BuildContext.SAMBA_BLDOPTIONS = SAMBA_BLDOPTIONS
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