From 4cc4b30426c5e5a0ecf912791e3f27312438d10e Mon Sep 17 00:00:00 2001 From: Bernhard Reutner-Fischer Date: Tue, 3 Jun 2008 08:11:56 +0000 Subject: - adds several config-options to allow for turning off certain features like o UCLIBC_HAS_GNU_ERROR o UCLIBC_HAS_BSD_ERR o UCLIBC_HAS_PTY o UCLIBC_HAS_GETPT (1) o UCLIBC_SYSCALL_STUBS o UCLIBC_SYSCALL_STUB_WARNING o UCLIBC_LINUX_SPECIFIC (2) o UCLIBC_BSD_SPECIFIC (3) o UCLIBC_NTP_LEGACY (4) o UCLIBC_SV4_DEPRECATED (5) o UCLIBC_HAVE_REALTIME (6) o UCLIBC_HAVE_ADVANCED_REALTIME (7) o UCLIBC_HAVE_EPOLL (8) o UCLIBC_HAVE_XATTR (9) o UCLIBC_HAVE_PROFILING (10) (1) make non-standard getpt optional and implement standard posix_openpt (2) fstatfs(), inotify_*(), ioperm(), iopl(), madvise(), modify_ldt(), personality() ppoll(), setresuid() (3) mincore(), getdomainname(), setdomainname() (4) ntp_adjtime(), ntp_gettime() aliases (5) ustat() [use statfs(2) in your code instead] (6) All marked as "(REALTIME)" in SUSv3 (7) All marked as "(ADVANCED REALTIME)" in SUSv3 (8) epoll_create(), epoll_ctl(), epoll_wait() (9) all Extended Attributes (10) helpers for gcc's -finstrument-functions - Fixes _dl_exit() - Implements sleep(3) for !UCLIBC_HAVE_REALTIME - Implements usleep(3) for !UCLIBC_HAVE_REALTIME - adds #warning about incorrect posix_fadvise{,64}() - removes unused and unwanted uselib() Net outcome is that an allnoconfig with HAVE_SHARED is now about 88k instead of formerly 130k. --- extra/Configs/Config.in | 282 +++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 277 insertions(+), 5 deletions(-) (limited to 'extra') diff --git a/extra/Configs/Config.in b/extra/Configs/Config.in index 7372f260e..8ac002d41 100644 --- a/extra/Configs/Config.in +++ b/extra/Configs/Config.in @@ -357,7 +357,7 @@ config HAS_NO_THREADS default n config UCLIBC_HAS_THREADS - bool "POSIX Threading Support" + bool "POSIX Threading support" depends on !HAS_NO_THREADS default y help @@ -399,6 +399,15 @@ config LINUXTHREADS_OLD the latest code from glibc, so it may be the only choice for the newer ports (like alpha/amd64/64bit arches and hppa). +config UCLIBC_HAS_SYSLOG + bool "Syslog support" + default y + depends on UCLIBC_HAS_NETWORK_SUPPORT + select UCLIBC_HAS_SOCKET + help + Support sending messages to the system logger. + This requires socket-support. + config UCLIBC_HAS_LFS bool "Large File Support" default y @@ -493,7 +502,7 @@ config UCLIBC_SUSV3_LEGACY help Enable this option if you want to have SuSv3 LEGACY functions in the library, else they are replaced by SuSv3 proposed macros. - Currently applies to bcopy/bzero/bcmp/index/rindex. + Currently applies to bcopy/bzero/bcmp/index/rindex/ftime. WARNING! ABI incompatibility. config UCLIBC_SUSV3_LEGACY_MACROS @@ -538,17 +547,40 @@ config UCLIBC_HAS___PROGNAME If unsure, just answer N. +config UCLIBC_HAS_PTY + bool "Support for pseudo-terminals" + default y + help + This enables support for pseudo-terminals (see man 4 pts + and man 7 pty). + + If unsure, just answer Y. + config UNIX98PTY_ONLY bool "Support only Unix 98 PTYs" default y + depends on UCLIBC_HAS_PTY help If you want to support only Unix 98 PTYs enable this. Some older applications may need this disabled. For most current programs, you can generally answer Y. +config UCLIBC_HAS_GETPT + bool "Support getpt() (glibc-compat)" + default n + depends on UCLIBC_HAS_PTY + help + Some packages may need getpt(). + All of those are non-standard and can be considered + GNU/libc compatibility. + Either use posix_openpt() or just open /dev/ptmx yourself. + + If unsure, just say N. + config ASSUME_DEVPTS bool "Assume that /dev/pts is a devpts or devfs file system" default y + depends on UCLIBC_HAS_PTY help Enable this if /dev/pts is on a devpts or devfs filesystem. Both these filesystems automatically manage permissions on the /dev/pts @@ -649,6 +681,8 @@ config UCLIBC_GRP_BUFFER_SIZE The value can be found using sysconf() with the _SC_GETGR_R_SIZE_MAX parameter. +comment "Support various families of functions" + config UCLIBC_LINUX_MODULE_24 bool "Linux kernel module functions" default y @@ -659,13 +693,250 @@ config UCLIBC_LINUX_MODULE_24 Say N if you do not use kernel modules. +config UCLIBC_LINUX_SPECIFIC + bool "Linux specific functions" + default y + help + fstatfs(), inotify_*(), ioperm(), iopl(), madvise(), modify_ldt(), + personality(), ppoll(), setresuid() + +config UCLIBC_HAS_GNU_ERROR + bool "Support GNU extensions for error-reporting" + default y + help + Support for the GNU-specific error(), error_at_line(), + void (* error_print_progname)(), error_message_count + functions and variables. Some GNU packages + utilize these for extra useful output, but in general + are not required. + + If unsure, just answer N. + +config UCLIBC_BSD_SPECIFIC + bool "BSD specific functions" + default y + help + mincore(), getdomainname(), setdomainname() + + If unsure, say N. + +config UCLIBC_HAS_BSD_ERR + bool "BSD err functions" + default y + help + These functions are non-standard BSD extensions. + err(), errx(), warn(), warnx(), verr(), verrx(), vwarn(), vwarnx() + + If unsure, say N. + +config UCLIBC_HAS_OBSOLETE_BSD_SIGNAL + bool "BSD obsolete signal functions" + default n + help + These functions are provided as a compatibility interface for + programs that make use of the historical System V signal API. + This API is obsolete: + new applications should use the POSIX signal API (sigaction(2), + sigprocmask(2), etc.). + Affected functions: + + sigset(), sighold(), sigrelse(), sigignore() + + If unsure, say N. + +config UCLIBC_HAS_OBSOLETE_SYSV_SIGNAL + bool "SYSV obsolete signal functions" + default n + help + Use of sysv_signal() should be avoided; use sigaction(2) instead. + + If unsure, say N. + +config UCLIBC_NTP_LEGACY + bool "ntp_*() aliases" + default n + help + Provide legacy aliases for ntp functions: + ntp_adjtime(), ntp_gettime() + + It is safe to say N here. + +config UCLIBC_SV4_DEPRECATED + bool "Enable SVr4 deprecated functions" + default n + help + These functions are DEPRECATED in System V release 4. + Say N unless you desparately need one of the functions below: + + ustat() [use statfs(2) in your code instead] + +config UCLIBC_HAS_REALTIME + bool "Realtime-related family of SUSv functions" + default y + # glitch in mq_{send,receive} currently forces this on + select UCLIBC_HAS_ADVANCED_REALTIME + help + These functions are part of the Timers option and need not + be available on all implementations. + Includes AIO, message-queue, scheduler, semaphore functions: + + aio.h + mqueue.h + sched.h + semaphore.h + + aio_cancel() + aio_error() + aio_fsync() + aio_read() + lio_listio() + aio_return() + aio_suspend() + aio_write() + clock_getres(), clock_gettime(), clock_settime() + fdatasync() + mlockall(), munlockall() + mlock(), munlock() + mq_close() + mq_getattr() + mq_notify() + mq_open() + mq_receive() + mq_send() + mq_setattr() + mq_unlink() + nanosleep() + sched_getparam() + sched_get_priority_max(), sched_get_priority_min() + sched_getscheduler() + sched_rr_get_interval() + sched_setparam() + sched_setscheduler() + sem_close() + sem_destroy() + sem_getvalue() + sem_init() + sem_open() + sem_post() + sem_trywait(), sem_wait() + sem_unlink() + sigqueue() + sigtimedwait(), sigwaitinfo() + timer_create() + timer_delete() + timer_getoverrun(), timer_gettime(), timer_settime() + +config UCLIBC_HAS_ADVANCED_REALTIME + bool "Advanced realtime-related family of SUSv functions" + default y + depends on UCLIBC_HAS_REALTIME + help + These functions are part of the Timers option and need not + be available on all implementations. + + clock_getcpuclockid() + clock_nanosleep() + mq_timedreceive() + mq_timedsend() + posix_fadvise() + posix_fallocate() + posix_madvise() + posix_memalign() + posix_mem_offset() + posix_spawnattr_destroy(), posix_spawnattr_init() + posix_spawnattr_getflags(), posix_spawnattr_setflags() + posix_spawnattr_getpgroup(), posix_spawnattr_setpgroup() + posix_spawnattr_getschedparam(), posix_spawnattr_setschedparam() + posix_spawnattr_getschedpolicy(), posix_spawnattr_setschedpolicy() + posix_spawnattr_getsigdefault(), posix_spawnattr_setsigdefault() + posix_spawnattr_getsigmask(), posix_spawnattr_setsigmask() + posix_spawn_file_actions_addclose() + posix_spawn_file_actions_adddup2() + posix_spawn_file_actions_addopen() + posix_spawn_file_actions_destroy() + posix_spawn_file_actions_init() + posix_spawn() + posix_spawnp() + posix_typed_mem_get_info() + pthread_mutex_timedlock() + sem_timedwait() + +#config UCLIBC_HAS_TERMIOS +# bool "termios functions" +# default y +# help +# Get and set terminal attributes, line control, get and set baud +# rate. +# termios(), tcgetattr(), tcsetattr(), tcsendbreak(), tcdrain(), +# tcflush(), tcflow(), cfmakeraw(), cfgetospeed(), cfgetispeed(), +# cfsetispeed(), cfsetospeed(), cfsetspeed() +# +# If unsure, say Y. + +config UCLIBC_HAS_EPOLL + bool "epoll" + default y + help + epoll_create(), epoll_ctl(), epoll_wait() functions. + +config UCLIBC_HAS_XATTR + bool "Extended Attributes" + default y + help + Extended Attributes support. + + setxattr() + lsetxattr() + fsetxattr() + getxattr() + lgetxattr() + fgetxattr() + listxattr() + llistxattr() + flistxattr() + removexattr() + lremovexattr() + fremovexattr() + + Say N unless you need support for extended attributes and the + filesystems do actually support them. + +config UCLIBC_HAS_PROFILING + bool "Profiling support" + default y + help + gcc's -finstrument-functions needs these. + + Most people can safely answer N. endmenu -menu "Networking Support" +menuconfig UCLIBC_HAS_NETWORK_SUPPORT + bool "Networking Support" + default y + help + Say N here if you do not need network support. + +if UCLIBC_HAS_NETWORK_SUPPORT +config UCLIBC_HAS_SOCKET + bool "Socket support" + default y + help + If you want to include support for sockets then answer Y. + +config UCLIBC_HAS_IPV4 + bool "IP version 4 support" + default y + select UCLIBC_HAS_SOCKET + help + If you want to include support for the Internet Protocol + (IP version 4) then answer Y. + + Most people will say Y. config UCLIBC_HAS_IPV6 - bool "IP version 6 Support" + bool "IP version 6 support" default n + select UCLIBC_HAS_SOCKET help If you want to include support for the next version of the Internet Protocol (IP version 6) then answer Y. @@ -703,6 +974,7 @@ config UCLIBC_HAS_REENTRANT_RPC config UCLIBC_USE_NETLINK bool "Use netlink to query interfaces" default n + depends on UCLIBC_HAS_SOCKET help In newer versions of Linux (2.4.17+), support was added for querying network device information via netlink rather than the old style @@ -722,7 +994,7 @@ config UCLIBC_HAS_BSD_RES_CLOSE Most people will say N. -endmenu +endif menu "String and Stdio Support" -- cgit v1.2.3