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This patch is a uClibc equivalent of
<http://sourceware.org/ml/libc-ports/2008-11/msg00006.html>, to
compute all syscall arguments on ARM in temporary variables before
loading them into register variables. The principle is as for that
glibc patch; the problem I actually observed was a GCC internal
compiler error building ld.so for Thumb-2.
Signed-off-by: Joseph Myers <joseph@codesourcery.com>
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Declare common NCS (non-constant syscall) variants and convert the existing
ports over to this.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Unify all the common syscall defines in syscalls-common.h and scrub all
the duplicated code from relevant ports. This should also make converting
existing ports to INLINE_SYSCALL() much easier as they don't have to get
lost in all the unrelated noise, as well as creating new ports.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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The test here is a constant expression and will compile out.
For platforms that don't need the shift the code gets slightly smaller
and simpler, for those that do the result is unchanged.
Signed-off-by: Ron Lee <ron@debian.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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This cuts down on a lot of noise from gcc-4.4
Signed-off-by: Ron Lee <ron@debian.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Make sure each arch has the same complete list to make comparing between
them easier.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Many Thumb-2 instructions cannot use sp or pc as operands, and the
assembler now diagnoses these. setjmp had one such instruction, movs;
this patch changes it to mov.
Signed-off-by: Joseph Myers <joseph@codesourcery.com>
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The ARM EABI has a document CLIBABI specifying various __aeabi_*
functions and variables to be provided for the use of portable objects
that can be linked with different EABI-conforming C libraries.
__aeabi_stdin, __aeabi_stdout and __aeabi_stderr were missing in
uClibc; this patch (originally from Nathan Froyd and for glibc) adds
them.
Signed-off-by: Joseph Myers <joseph@codesourcery.com>
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ustat: same, + remove superfluous "conversion"
which does nothing at best, loses high dev bits at worst
i386/bits/kernel_stat.h: update to reflect reality (wider dev_t)
h8300/bits/kernel_stat.h: same
arm/bits/kernel_stat.h: cosmetics to match kernel header to the letter
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and google says only uclibc has it, no users at all.
text data bss dec hex filename
- 229374 1367 11280 242021 3b165 lib/libuClibc-0.9.30-svn.so
+ 229347 1367 11280 241994 3b14a lib/libuClibc-0.9.30-svn.so
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Run tested on i386.
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"Bounds Checking Projects... This project has been abandoned"
for four years at least.
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__libc_accept __libc_close __libc_connect __libc_creat __libc_creat64
__libc_fsync __libc_lseek __libc_lseek64 __libc_msync __libc_nanosleep
__libc_open __libc_open64 __libc_pause __libc_read __libc_readv
__libc_recv __libc_recvfrom __libc_recvmsg
__libc_send __libc_sendmsg __libc_sendto
__libc_tcdrain __libc_wait __libc_waitpid __libc_write __libc_writev
They were removed from glibc 1 May 2004:
http://sources.redhat.com/ml/libc-hacker/2004-05/msg00001.html
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fix _NSIG for it.
better document what's going on in sigaction().
seems to not induce any actual code changes (sans mips).
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This patch fixes position-independent executables (PIEs) for Thumb-2. In
Thumb assembly, instructions reading pc give a value 4 greater than the
address of the instruction, rather than 8 greater as in ARM mode, so the
offset to the GOT needs to have the right offset. (The Thumb-1 code
already gets this right; it's the code shared by ARM and Thumb-2 that
needs fixing.)
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Appears to build fine (several .configs tried)
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(75_all_uClibc-arm-ftruncate64.patch from gentoo)
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Tested successfully on i386..
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Repair C89 compliance and severe whitespace-defects while at it.
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in string.h and strings.h. This caught unguarded string ops in
libc/inet/ethers.c __ether_line_w() function.
I will wait for fallout reports for a week or so,
then continue converting more libc_hidden_proto's.
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- synch F_LINUX_SPECIFIC_BASE related fcntls for all arches
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Poschwatta
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The attached patch adds support for compiling arm uClibc as pure Thumb code.
This is needed because some recent ARM codes do not implement traditional ARM
mode. Specifically:
* Cortex-M1 - An extremely minimal FPGA based core that only implements
Thumb-1 (aka ARMv6-M).
* Cortex-M3 - A Thumb-2 only ARMv7-M core.
Most of uClibc already builds in Thumb mode, all that is left are a handful of
assembly bits.
Tested on arm-uclinuxeabi.
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a problem where the linker was trying to use the wrong symbol name for the
init function.
Define SYMBOL_PREFIX as _ in Rules.mak for h8300, bfin, i960,
microblaze, and v850. Add -D__UCLIBC_UNDERSCORES__ in CFLAGS for targets
which define SYMBOL_PREFIX as _. Remove defines and undefs from
uClibc_arch_features.h of each target.
Add $(SYMBOL_PREFIX) to __uClibc_init when passed by ld option -init.
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doing double negatives
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common directory where SHMLBA = __getpagesize()
This patch fixes the issue.
Khem Raj
MontaVista Software Inc.
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http://www.opengroup.org/onlinepubs/009695399/functions/posix_fadvise.html
states it returns error code instead of setting errno.
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Linux kernel versions as reported by Joseph S. Myers on the mailing list. More information available at <http://www.uclibc.org/lists/uclibc/2007-May/017971.html> .
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says "virtual memory exhausted" trying to build hello world.)
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Import INTERNAL_SYSCALL macro for i386 from glibc.
Use above macro in posix_fadvise implementation if an arch defines it.
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