changelog

ecos为实时嵌入式操作系统

	CYGSEM_LIBC_TIME_TIME_WORKING, CYGFUN_LIBC_TIME_POSIX,
	CYGNUM_LIBC_TIME_CLOCK_TRACE_LEVEL, CYGIMP_LIBC_TIME_ASCTIME_INLINE,
	CYGIMP_LIBC_TIME_CTIME_INLINE, CYGIMP_LIBC_TIME_DIFFTIME_INLINE,
	CYGIMP_LIBC_TIME_GMTIME_INLINE, CYGIMP_LIBC_TIME_LOCALTIME_INLINE,
	CYGIMP_LIBC_TIME_MKTIME_INLINE, CYGIMP_LIBC_TIME_ASCTIME_R_INLINE,
	CYGIMP_LIBC_TIME_CTIME_R_INLINE, CYGIMP_LIBC_TIME_GMTIME_R_INLINE,
	and CYGIMP_LIBC_TIME_LOCALTIME_R_INLINE

	* time/asctime.cxx, time/asctime_r.cxx, time/clock.cxx, time/ctime.cxx,
	  time/ctime_r.cxx, time/difftime.cxx, time/gmtime.cxx,
	  time/gmtime_r.cxx, time/localtime.cxx, time/localtime_r.cxx,
	  time/mktime.cxx, time/strftime.cxx, time/time.cxx, time/timeutil.cxx,
	  include/time.inl:
	New files to implement the new time functions. Many of them simply
	provide the outline definitions, but the real body of the function
	comes from time.inl

	* src/PKGconf.mak:
	Build new .cxx files

	* src/clibincl/stdlibsupp.hxx:
	Remove _div and _ldiv prototypes since they're no longer needed

	* src/clibincl/timesupp.hxx:
	Delete as its now obsolete

	* src/time/clock.cxx:
	Use new CYGSEM_LIBC_TIME_CLOCK_WORKING option to control whether it
	just returns (clock_t)-1 or not.
	Much reformatting and tidying
	Change real imlpementation from _clock to __clock
	Use CYGBLD_ATTRIB_WEAK_ALIAS now

	* tests/stdlib/div.c, tests/stdlib/ldiv.c:
	Add some extra tests for handling of negative numbers
	Reformat and tidy a bit, including removing the test for CYGPKG_LIBC
	since its now always defined if the test is to be compiled

	* tests/time/clock.c:
	Remove duplication CYG_TEST_INFO line
	Check if unimplemented using "(clock_t)-1" and not just "-1"

1999-03-04  Jonathan Larmour  <[e-mail]>

	* src/stdlib/system.cxx: 
	Make sure system() is a weak alias for __system()

	* include/pkgconf/libc.h: Rework CDL description for 
	CYGDAT_LIBC_STDIO_DEFAULT_CONSOLE and change its default to
	"/dev/haldiag"

	* src/stdio/common/stream.cxx:
	Check that dev is valid when passed to stream constructor

	* src/stdio/common/stdiosupp.cxx:
	Tidy

	* src/support/mainthread.cxx: Make this depend on
	CYGSEM_LIBC_STARTUP_MAIN_THREAD rather than just CYGPKG_KERNEL

1999-03-04  Gary Thomas  <[e-mail]>

	Merged in changes from 'ecos-new_devs-19990216-branch'
	
	(1999-02-24  Jonathan Larmour  <[e-mail]>)

	* src/stdio/common/stream.cxx:
	Add "fix me" comments and remove a couple of commented out lines

	* src/stdio/common/vsnprintf.cxx:
	* src/stdio/common/vsscanf.cxx:
	Revert to using pointer to string for private data, not just string.
	This preserves the state across multiple calls	

	(1999-02-24  Gary Thomas  <[e-mail]>)

	* src/stdio/common/vsscanf.cxx: 
	* src/stdio/common/vsnprintf.cxx: 
	* src/stdio/common/stream.cxx: 
	* src/stdio/common/stdiosupp.cxx: 
	* src/stdio/common/fopen.cxx: 
	* src/clibincl/stream.inl: 
	* src/clibincl/stream.hxx: 
	* src/clibincl/stdiosupp.hxx: 
	* include/pkgconf/libc.h: Changes for new I/O system.

1999-03-03  Jonathan Larmour  <[e-mail]>

	* tests/stdlib/atexit.c: Forgot to config atexit test for
	CYGFUN_LIBC_ATEXIT option

	* include/pkgconf/libc.h:
	Require CYGVAR_KERNEL_THREADS_DATA for CYGSEM_LIBC_PER_THREAD_STRTOK
	This fixes PR 19362
	Require CYGPKG_KERNEL for thread safe streams
	Also don't need "requires CYGPKG_KERNEL" for per-thread rand and errno
	if we already require a finer granularity kernel option

1999-02-25  Jonathan Larmour  <[e-mail]>

	* include/pkgconf/libc.h: Fix CYGNUM_LIBC_MAIN_STACK_SIZE by changing
	CYGPKG_LIBC_STARTUP_MAIN_THREAD -> CYGSEM_LIBC_STARTUP_MAIN_THREAD
	Fix for PR 19304

1999-02-23  Jonathan Larmour  <[e-mail]>

	* src/stdlib/system.cxx: Add to implement trivial system() call
	* include/stdlib.h: Add system() prototype
	* src/PKGconf.mak: Build system.cxx

	* tests/ctype/ctype.c, tests/i18n/setlocale.c, tests/setjmp/setjmp.c,
	  tests/signal/signal1.c, tests/signal/signal2.c,
	  tests/stdio/sprintf1.c, tests/stdio/sprintf2.c, tests/stdio/sscanf.c,
	  tests/stdio/stdiooutput.c, tests/stdlib/atexit.c,
	  tests/stdlib/atoi.c, tests/stdlib/atol.c, tests/stdlib/bsearch.c,
	  tests/stdlib/div.c, tests/stdlib/getenv.c, tests/stdlib/labs.c,
	  tests/stdlib/ldiv.c, tests/stdlib/malloc1.c, tests/stdlib/malloc2.c,
	  tests/stdlib/malloc3.c, tests/stdlib/qsort.c, tests/stdlib/rand1.c,
	  tests/stdlib/rand2.c, tests/stdlib/rand3.c, tests/stdlib/realloc.c,
	  tests/stdlib/srand.c, tests/stdlib/strtol.c, tests/stdlib/strtoul.c,
	  tests/string/memchr.c, tests/string/memcmp1.c,
	  tests/string/memcmp2.c, tests/string/memcpy1.c,
	  tests/string/memcpy2.c, tests/string/memmove1.c,
	  tests/string/memmove2.c, tests/string/memset.c,
	  tests/string/strcat1.c, tests/string/strcat2.c,
	  tests/string/strchr.c, tests/string/strcmp1.c,
	  tests/string/strcmp2.c, tests/string/strcoll1.c,
	  tests/string/strcpy1.c, tests/string/strcpy2.c,
	  tests/string/strcspn.c, tests/string/strlen.c,
	  tests/string/strncat1.c, tests/string/strncat2.c,
	  tests/string/strncpy1.c, tests/string/strncpy2.c,
	  tests/string/strpbrk.c, tests/string/strrchr.c,
	  tests/string/strspn.c, tests/string/strstr.c, tests/string/strtok.c,
	  tests/string/strxfrm1.c, tests/string/strxfrm2.c, tests/time/clock.c:
	Use CYG_TEST_NA() macro for non-applicable test configurations

1999-02-20  Jonathan Larmour  <[e-mail]>

	* include/signal.h:
	* include/signal.inl:
	* src/signal/raise.cxx:
	* src/signal/siginit.cxx:
	* src/signal/signal.cxx:
	* tests/signal/signal1.c
	* tests/signal/signal2.c:
	New files to implement ISO standard signals

	* src/PKGconf.mak (TESTS): 
	* tests/PKGconf.mak (TESTS): 
	Update to build new files above
	
	* include/stdlib.h: 
	* src/clibincl/stdlibsupp.hxx:
	Comment and QA changes (including giving better names to some types)

	* include/libc.h:
	Add new configuration options for signals
	Add new CYGSEM_LIBC_STARTUP_MAIN_THREAD option
	Add a note to CYGNUM_LIBC_MAIN_STACK_SIZE option that it may be
	overriden by HAL
	Add new CYGFUN_LIBC_ATEXIT option and move ...ATEXIT_HANDLERS under
	it
	Add new CYGSEM_LIBC_EXIT_CALLS_FFLUSH option
	Require CYGSEM_LIBC_STARTUP_MAIN_THREAD for "Invoke default static
	constructors" option

	* src/stdlib/atexit.cxx:
	Support above CYGFUN_LIBC_ATEXIT and QA changes

	* src/stdlib/exit.cxx:
	Support for above new libc.h options, and some QA changes

	* src/support/cstartup.cxx:
	Add support for new CYGSEM_LIBC_STARTUP_MAIN_THREAD option

	* src/support/mainthread.cxx:
	Override main stack size if the HAL has a minimum

	* src/string/strncpy.cxx:
	Use improved algorithm for aligned copies - imported from newlib
	QA changes

	* src/stdlib/abort.cxx:
	Support raise(SIGABRT), and some QA
	
	* include/errno.h: 
	Add const attribute

	* tests/stdlib/abs.c:
	QA improvements

1999-02-04  Jesper Skov  <[e-mail]>

	* src/support/cstartup.cxx: Only define cyg_libc_main_thread when
	the kernel is around.

1999-02-01  Jesper Skov  <[e-mail]>

	* tests/time/clock.c: Joined the two test/NOP checks into
	one. 
	Increased tolerance in attempt to fix PRs 18737,18787,18846.
	Fixed typo.

1999-01-28  Jonathan Larmour  <[e-mail]>

	* src/string/strtok.cxx: 
	* src/stdlib/rand.cxx: 
	Include <pkgconf/kernel.h> if we use kernel header files

1999-01-25  Jonathan Larmour  <[e-mail]>

	* tests/stdio/sscanf.c (test): 
	CYGSEM_LIBC_STDIO_PRINTF_FLOATING_POINT should be
	CYGSEM_LIBC_STDIO_SCANF_FLOATING_POINT
	Fix for PR 18786

	* src/string/strtok.cxx: 
	* src/stdio/common/stdiofiles.cxx:
	* src/errno/errno.cxx: 
	* src/stdlib/rand.cxx: 
	Give mutex protection objects a libc constructor priority

	* src/support/invokemain.cxx:
	Add prototype for cyg_hal_invoke_constructors()

	* src/support/mainthread.cxx:
	Give cyg_libc_dummy_constructor_obj a libc constructor priority,
	and make its class have a public constructor

	* src/stdio/common/stderr.cxx: 
	* src/stdio/common/stdout.cxx: 
	* src/stdio/common/stdin.cxx: 
	Give cyg_libc_stdio_stdin/out/err static objects a libc constructor
	priority
	
	* src/clibincl/streambuf.hxx (class Cyg_StdioStreamBuffer): 
	* src/clibincl/stream.hxx (class Cyg_StdioStream): 
	Remove private copy constructor. Needed to make prioritised
	static constructors work. Fix for PR 18898

1999-01-22  Jonathan Larmour  <[e-mail]>

	* src/errno/errno.cxx: 
	Include pkgconf/kernel.h otherwise it fails with per-thread errno
	enabled

	* include/pkgconf/libc.h: 
	Enable per-thread errno by default since that is what POSIX would
	want

	* tests/time/clock.c (test): 
	Placate compiler by initializing clock_first/second/third anyway,
	even though they won't be in practice. This is only a test program
	so adding an extra instruction doesn't matter.

	* src/i18n/locale.cxx (_setlocale): 
	Placate compiler, since it is dumb, by nesting, not serializing, if's
	This is an idempotent change, but screws up the formatting :-(.

	* src/string/strpbrk.cxx (_strpbrk): 
	Change while loop to do loop to placate compiler. It'll even save an
	instruction too (wow!)
	
1999-01-22  John Dallaway  <[e-mail]>

	* include/pkgconf/libc.h: 
	Add closing curly brace to CYGPKG_LIBC_STRING_STRTOK definition

1999-01-21  Jonathan Larmour  <[e-mail]>

	* include/errno.h: 
	Tidy up and add to header description 
	Change cyg_get_errno_p() to cyg_libc_get_errno_p()
	Remove ifdef CYGPKG_LIBC

	* include/sys/file_if.h:
	Remove - move contents to stdio.h

	* include/stdio.h:
	Tidy up header description
	Move FILE typedef here from sys/file_if.h
	SEEK_SET, SEEK_CUR, SEEK_END defined to 0, 1, 2 respectively
	for backwards compatibility with old UNIX
	Change definitions of stdin/out/err to be addresses of FILE
	globals - even though they're actually Cyg_StdioStream it'll work

	* include/pkgconf/libc.h:
	Make CYGPRI_LIBC_WEAK et al macros depend on new ones in infra
	Reorganise trace options under the individual components they are
	associated with.
	Reorganise thread-safety options under the individual components
	they are associated with.
	Add new CYGSEM_LIBC_INVOKE_DEFAULT_STATIC_CONSTRUCTORS option
	Misc. reformatting
	Remove dependency on pkgconf/kernel.h - Configuration Tool will
	generate check macros anyway.
	Remove CYGPKG_LIBC_TRACE, CYGFUN_LIBC_strtok, CYGPKG_LIBC_RAND
	options
	Tidy up description header

	* src/clibincl/clibdata.hxx:
	* src/clibincl/clibdata.inl:
	* src/support/clibdata.cxx:
	Remove and instead rely on each component to initialise its own data

	* src/clibincl/stdiofiles.hxx, src/clibincl/stdiofiles.inl:
	New files to contain global file list and lock (if applicable).
	Implemented as class with member access functions

	* src/errno/errno.cxx:
	Reorganise with self-contained per-thread data, if applicable
	Remove ifdef CYGPKG_LIBC
	Tidy up description header
	Rename cyg_get_errno_p() to cyg_libc_get_errno_p()

	* src/stdio/common/fclose.cxx:
	* src/stdio/common/fflush.cxx:
	* src/stdio/common/fopen.cxx:
	* src/stdio/common/freopen.cxx:
	Remove ifdef CYGPKG_LIBC
	Use new global file access method from stdiofiles.hxx
	Tidy up description header
	Use new CYGBLD_ATTRIB_WEAK_ALIAS
	Access errno "normally" rather than clibdata way

	* src/stdio/common/stdin.cxx:
	* src/stdio/common/stdout.cxx
	* src/stdio/common/stderr.cxx:
	New files. Implement Cyg_StdioStream objects for each stream. In
	separate self-contained files so using one doesn't bring in the
	others

	* src/stdio/common/stdiofiles.cxx:
	New file. Implements global files array and lock

	* src/stdlib/_exit.cxx:
	Tidy up description header
	Remove ifdef CYGPKG_LIBC
	Use infra CYGBLD* macros

	* src/stdlib/malloc.cxx:
	Tidy up description header
	Remove ifdef CYGPKG_LIBC
	Add pkgconf/kernel.h now that pkgconf/libc.h doesn't have it
	Use infra CYGBLD* macros
	Make pool visible externally with weak attribute and new name
	cyg_libc_malloc_memorypool

	* src/stdlib/rand.cxx:
	* src/stdlib/strtok.cxx:
	Reorganise with self-contained per-thread data, if applicable
	Remove ifdef CYGPKG_LIBC
	Tidy up description header
	Use infra CYGBLD* macros

	* src/support/cstartup.cxx:
	Split into smaller files to make selective linking work better,
	fix i386 port problem and make GDB happy

	* src/support/environ.cxx:
	* src/support/invokemain.cxx:
	* src/support/main.cxx:
	* src/support/mainthread.cxx:
	New files from bits of the old cstartup.cxx
	Add support for CYGSEM_HAL_STOP_CONSTRUCTORS_ON_FLAG

	* src/PKGconf.mak:
	Update to reflect file additions/deletion

	* tests/stdlib/rand1.c:
	* tests/stdlib/rand2.c:
	* tests/stdlib/rand3.c:
	* tests/stdlib/srand.c:
	Make conform to coding standards
	Remove ifdef CYGPKG_LIBC_RAND
	Tidy up description header

	* tests/string/strtok.c:
	Make conform to coding standards
	Remove ifdef CYGFUN_LIBC_strtok
	Tidy up description header

1999-01-15  Mark Galassi  <[e-mail]>

	* tests/stdlib/getenv.c (main): added tests for the case in which
	the user does not supply environ and in which the user supplies a
	NULL environ.

1999-01-15  Jesper Skov  <[e-mail]>

	* src/support/cstartup.cxx: Added workaround for weak aliasing
	problem in i386 gcc.