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Appears to build fine (several .configs tried)
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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.
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mremap, instead of __USE_MISC according to glibc. Missing prototype was spotted out by Peter Mazinger
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gcc version checking in every pt-machine.h header ... while __extern_always_inline should work fine, i think what is intended is __extern_inline ... should double check later
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(selectable by #defining SYSLOG_NAMES_CONST)
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However, retesting on m68k showed up a problem that had appeared in
uClibc since the last time I tried. Specifically, revision 15785 did:
-#define HEAP_GRANULARITY (sizeof (HEAP_GRANULARITY_TYPE))
+#define HEAP_GRANULARITY (__alignof__ (HEAP_GRANULARITY_TYPE))
-#define MALLOC_ALIGNMENT (sizeof (double))
+#define MALLOC_ALIGNMENT (__alignof__ (double))
The problem is that
(a) MALLOC_HEADER_SIZE == MALLOC_ALIGNMENT
(b) the header contains a size value of type size_t
(c) sizeof (size_t) is 4 on m68k, but...
(d) __alignof__ (double) is only 2 (the largest alignment used on m68k)
So we only allocate 2 bytes for the 4-byte header, and the least
significant 2 bytes of the size are in the user's area rather than
the header. The patch below fixes that problem by redefining
MALLOC_HEADER_SIZE to:
MAX (MALLOC_ALIGNMENT, sizeof (size_t))
(but without the help of the MAX macro ;)). However, we really would
like to have word alignment on Coldfire. It makes a big performance
difference, and because we have to allocate a 4-byte header anyway,
what wastage there is will be confined to the end of the allocated block.
Any wastage will also be limited to 2 bytes per allocation compared to
the current alignment.
I've therefore used the __aligned__ type attribute to create a double
type that has at least sizeof (size_t) bytes of alignment. I've
introduced a new __attribute_aligned__ macro for this. It might seem
silly protecting against old or non-GNU compilers here, but the extra
alignment is only an optimisation, and having the macro is more in the
spirit of the other attribute code.
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Only affects gcc <2.7 or non-gcc compilers that bailed earlier due to missing int64_t
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applications stop using _syscall#() and use syscall() instead. Cleanup
internal handling of syscall includes to use the correct header file.
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are NOT suitable for user-space. The libc ones are the ones that
application code must use. If a problem is found with the libc
ones, then the libc syscall macros should be fixed.
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consider versioned stat/mknod in uClibc
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sys/syscall.h uses the IS_IN_libc define before including any header that
includes libc-internal.h (where IS_IN_libc is defined). This patch makes
sys/syscall.h include features.h to get the IS_IN_libc define where
appropriate.
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