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Refs #7938.

[SVN r83010]
This commit is contained in:
John Maddock
2013-02-19 16:42:49 +00:00
parent 16c1d684c0
commit 806733e22c
1 changed files with 261 additions and 18 deletions
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271
include/boost/config/platform/vxworks.hpp
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@@ -1,31 +1,274 @@
// (C) Copyright Dustin Spicuzza 2009. // (C) Copyright Dustin Spicuzza 2009.
// Adapted to vxWorks 6.9 by Peter Brockamp 2012.
// Use, modification and distribution are subject to the // Use, modification and distribution are subject to the
// Boost Software License, Version 1.0. (See accompanying file // Boost Software License, Version 1.0. (See accompanying file
// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
// See http://www.boost.org for most recent version. // See http://www.boost.org for most recent version.
// vxWorks specific config options: // Since WRS does not yet properly support boost under vxWorks
// and this file was badly outdated, but I was keen on using it,
// I patched boost myself to make things work. This has been tested
// and adapted by me for vxWorks 6.9 *only*, as I'm lacking access
// to earlier 6.X versions! The only thing I know for sure is that
// very old versions of vxWorks (namely everything below 6.x) are
// absolutely unable to use boost. This is mainly due to the completely
// outdated libraries and ancient compiler (GCC 2.96 or worse). Do
// not even think of getting this to work, a miserable failure will
// be guaranteed!
// Equally, this file has been tested for RTPs (Real Time Processes)
// only, not for DKMs (Downloadable Kernel Modules). These two types
// of executables differ largely in the available functionality of
// the C-library, STL, and so on. A DKM uses a library similar to those
// of vxWorks 5.X - with all its limitations and incompatibilities
// in respect to ANSI C++ and STL. So probably there might be problems
// with the usage of boost from DKMs. WRS or any voluteers are free to
// prove the opposite!
#define BOOST_PLATFORM "vxWorks" // Block out all versions before vxWorks 6.x, as these don't work:
// Include header with the vxWorks version information and query them
#define BOOST_NO_CWCHAR #include <version.h>
#define BOOST_NO_INTRINSIC_WCHAR_T #if !defined(_WRS_VXWORKS_MAJOR) || (_WRS_VXWORKS_MAJOR < 6)
# error "The vxWorks version you're using is so badly outdated,\
#if defined(__GNUC__) && defined(__STRICT_ANSI__) it doesn't work at all with boost, sorry, no chance!"
#define BOOST_NO_INT64_T
#endif #endif
// Handle versions above 5.X but below 6.9
#if (_WRS_VXWORKS_MAJOR == 6) && (_WRS_VXWORKS_MINOR < 9)
// TODO: Starting from what version does vxWorks work with boost?
// We can't reasonably insert a #warning "" as a user hint here,
// as this will show up with every file including some boost header,
// badly bugging the user... So for the time being we just leave it.
#endif
// vxWorks specific config options:
// --------------------------------
#define BOOST_PLATFORM "vxWorks"
// Special behaviour for DKMs:
#ifdef _WRS_KERNEL
// DKMs do not have the <cwchar>-header,
// but apparently they do have an intrinsic wchar_t meanwhile!
# define BOOST_NO_CWCHAR
// Lots of wide-functions and -headers are unavailable for DKMs as well:
# define BOOST_NO_CWCTYPE
# define BOOST_NO_SWPRINTF
# define BOOST_NO_STD_WSTRING
# define BOOST_NO_STD_WSTREAMBUF
#endif
// Generally available headers:
#define BOOST_HAS_UNISTD_H #define BOOST_HAS_UNISTD_H
#define BOOST_HAS_STDINT_H
#define BOOST_HAS_DIRENT_H
#define BOOST_HAS_SLIST
// these allow posix_features to work, since vxWorks doesn't // vxWorks does not have installed an iconv-library by default,
// define them itself // so unfortunately no Unicode support from scratch is available!
#define _POSIX_TIMERS 1 // Thus, instead it is suggested to switch to ICU, as this seems
#define _POSIX_THREADS 1 // to be the most complete and portable option...
#define BOOST_LOCALE_WITH_ICU
// vxworks doesn't work with asio serial ports // Generally available functionality:
#define BOOST_HAS_THREADS
#define BOOST_HAS_NANOSLEEP
#define BOOST_HAS_CLOCK_GETTIME
#define BOOST_HAS_MACRO_USE_FACET
// Generally unavailable functionality, delivered by boost's test function:
//#define BOOST_NO_DEDUCED_TYPENAME // Commented this out, boost's test gives an errorneous result!
#define BOOST_NO_CXX11_EXTERN_TEMPLATE
#define BOOST_NO_CXX11_VARIADIC_MACROS
// Generally available threading API's:
#define BOOST_HAS_PTHREADS
#define BOOST_HAS_SCHED_YIELD
#define BOOST_HAS_SIGACTION
// Functionality available for RTPs only:
#ifdef __RTP__
//# define BOOST_HAS_GETTIMEOFDAY
# define BOOST_HAS_PTHREAD_MUTEXATTR_SETTYPE
# define BOOST_HAS_LOG1P
# define BOOST_HAS_EXPM1
#endif
// Functionality available for DKMs only:
#ifdef _WRS_KERNEL
// Luckily, at the moment there seems to be none!
#endif
// These #defines allow posix_features to work, since vxWorks doesn't
// #define them itself for DKMs (for RTPs on the contrary it does):
#ifdef _WRS_KERNEL
# ifndef _POSIX_TIMERS
# define _POSIX_TIMERS 1
# endif
# ifndef _POSIX_THREADS
# define _POSIX_THREADS 1
# endif
#endif
// vxWorks doesn't work with asio serial ports:
#define BOOST_ASIO_DISABLE_SERIAL_PORT #define BOOST_ASIO_DISABLE_SERIAL_PORT
// TODO: The problem here seems to bee that vxWorks uses its own, very specific
// ways to handle serial ports, incompatible with POSIX or anything...
// Maybe a specific implementation would be possible, but until the
// straight need arises... This implementation would presumably consist
// of some vxWorks specific ioctl-calls, etc. Any voluteers?
// boilerplate code: // vxWorks-around: <time.h> #defines CLOCKS_PER_SEC as sysClkRateGet() but
// miserably fails to #include the required <sysLib.h> to make
// sysClkRateGet() available! So we manually include it here.
#ifdef __RTP__
# include <sysLib.h>
#endif
// vxWorks-around: In <stdint.h> the macros INT32_C(), UINT32_C(), INT64_C() and
// UINT64_C() are defined errorneously, yielding not a signed/
// unsigned long/long long type, but a signed/unsigned int/long
// type. Eventually this leads to compile errors in ratio_fwd.hpp,
// when trying to define several constants which do not fit into a
// long type! We correct them here by redefining.
#include <cstdint>
// Some macro-magic to do the job
#define VX_JOIN(X, Y) VX_DO_JOIN(X, Y)
#define VX_DO_JOIN(X, Y) VX_DO_JOIN2(X, Y)
#define VX_DO_JOIN2(X, Y) X##Y
// Correctly setup the macros
#undef INT32_C
#undef UINT32_C
#undef INT64_C
#undef UINT64_C
#define INT32_C(x) VX_JOIN(x, L)
#define UINT32_C(x) VX_JOIN(x, UL)
#define INT64_C(x) VX_JOIN(x, LL)
#define UINT64_C(x) VX_JOIN(x, ULL)
// #include Libraries required for the following function adaption
#include <ioLib.h>
#include <tickLib.h>
// Use C-linkage for the following helper functions
extern "C" {
// vxWorks-around: The required functions getrlimit() and getrlimit() are missing.
// But we have the similar functions getprlimit() and setprlimit(),
// which may serve the purpose.
// Problem: The vxWorks-documentation regarding these functions
// doesn't deserve its name! It isn't documented what the first two
// parameters idtype and id mean, so we must fall back to an educated
// guess - null, argh... :-/
// TODO: getprlimit() and setprlimit() do exist for RTPs only, for whatever reason.
// Thus for DKMs there would have to be another implementation.
#ifdef __RTP__
inline int getrlimit(int resource, struct rlimit *rlp){
return getprlimit(0, 0, resource, rlp);
}
inline int setrlimit(int resource, const struct rlimit *rlp){
return setprlimit(0, 0, resource, const_cast<struct rlimit*>(rlp));
}
#endif
// vxWorks has ftruncate() only, so we do simulate truncate():
inline int truncate(const char *p, off_t l){
int fd = open(p, O_WRONLY);
if (fd == -1){
errno = EACCES;
return -1;
}
if (ftruncate(fd, l) == -1){
close(fd);
errno = EACCES;
return -1;
}
return close(fd);
}
// Fake symlink handling by dummy functions:
inline int symlink(const char*, const char*){
// vxWorks has no symlinks -> always return an error!
errno = EACCES;
return -1;
}
inline ssize_t readlink(const char*, char*, size_t){
// vxWorks has no symlinks -> always return an error!
errno = EACCES;
return -1;
}
// vxWorks does provide neither struct tms nor function times()!
// We implement an empty dummy-function, simply setting the user
// and system time to the half of thew actual system ticks-value
// and the child user and system time to 0.
// Rather ugly but at least it suppresses compiler errors...
// Unfortunately, this of course *does* have an severe impact on
// dependant libraries, actually this is chrono only! Here it will
// not be possible to correctly use user and system times! But
// as vxWorks is lacking the ability to calculate user and system
// process times there seems to be no other possible solution.
struct tms{
clock_t tms_utime; // User CPU time
clock_t tms_stime; // System CPU time
clock_t tms_cutime; // User CPU time of terminated child processes
clock_t tms_cstime; // System CPU time of terminated child processes
};
inline clock_t times(struct tms *t){
clock_t ticks = static_cast<clock_t>(tickGet());
t->tms_utime = ticks/2U;
t->tms_stime = ticks/2U;
t->tms_cutime = 0;
t->tms_cstime = 0;
return ticks;
}
} // extern "C"
// Put the selfmade functions into the std-namespace, just in case
namespace std {
# ifdef __RTP__
using ::getrlimit;
using ::setrlimit;
# endif
using ::truncate;
using ::symlink;
using ::readlink;
using ::times;
}
// Some more macro-magic:
// vxWorks-around: Some functions are not present or broken in vxWorks
// but may be patched to life via helper macros...
// Include signal.h which contains a typo to be corrected here
#include <signal.h>
#define getpagesize() sysconf(_SC_PAGESIZE) // getpagesize is deprecated anyway!
#ifndef S_ISSOCK
# define S_ISSOCK(mode) ((mode & S_IFMT) == S_IFSOCK) // Is file a socket?
#endif
#define lstat(p, b) stat(p, b) // lstat() == stat(), as vxWorks has no symlinks!
#ifndef FPE_FLTINV
# define FPE_FLTINV (FPE_FLTSUB+1) // vxWorks has no FPE_FLTINV, so define one as a dummy
#endif
#if !defined(BUS_ADRALN) && defined(BUS_ADRALNR)
# define BUS_ADRALN BUS_ADRALNR // Correct a supposed typo in vxWorks' <signal.h>?
#endif
//typedef int locale_t; // locale_t is a POSIX-extension, currently unpresent in vxWorks!
// #include boilerplate code:
#include <boost/config/posix_features.hpp> #include <boost/config/posix_features.hpp>
// vxWorks lies about XSI conformance, there is no nl_types.h:
#undef BOOST_HAS_NL_TYPES_H
// vxWorks blatantly lies about implementing gettimeofday:
// Though it even declares a prototype in sys/time.h, linking it fails!
#undef BOOST_HAS_GETTIMEOFDAY