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The F_DUPFD_CLOEXEC flag was added in POSIX 2008.09.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
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Similar to glibc commit
https://sourceware.org/git/?p=glibc.git;a=commit;h=6bbfc5c09fc5b5e3d4a0cddbbd4e2e457767dae7
we need to handle Linux kernel change, which removed stat64 family from default syscall set.
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
Signed-off-by: Waldemar Brodkorb <wbrodkorb@conet.de>
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The return type of syscall() is long so __syscall_error, which is jumped
to by syscall handlers to stash an error number into errno, must return
long too otherwhise it returs 4294967295L instead of -1L. For example,
syscall for x86_64 is defined in libc/sysdeps/linux/x86_64/syscall.S as
syscall:
movq %rdi, %rax /* Syscall number -> rax. */
movq %rsi, %rdi /* shift arg1 - arg5. */
movq %rdx, %rsi
movq %rcx, %rdx
movq %r8, %r10
movq %r9, %r8
movq 8(%rsp),%r9 /* arg6 is on the stack. */
syscall /* Do the system call. */
cmpq $-4095, %rax /* Check %rax for error. */
jae __syscall_error /* Branch forward if it failed. */
ret /* Return to caller. */
In libc/sysdeps/linux/x86_64/__syscall_error.c, __syscall_error is
defined as
int __syscall_error(void) attribute_hidden;
int __syscall_error(void)
{
register int err_no __asm__ ("%rcx");
__asm__ ("mov %rax, %rcx\n\t"
"neg %rcx");
__set_errno(err_no);
return -1;
}
So __syscall_error returns -1 as a 32-bit int in a 64-bit register, %rax
(0x00000000ffffffff, whose decimal value is decimal 4294967295) and a
test like this always returns false:
if (syscall(number, ...) == -1)
foo();
Fix the error by making __syscall_error return a long, like syscall().
The problem can be circumvented by the caller by coercing the returned
value to int before comparing it to -1:
if ((int) syscall(number, ...) == -1)
foo();
The same problem probably occurs on other 64-bit systems but so far only
x86_64 was tested, so this change must be considered experimental.
Signed-off-by: Carlos Santos <unixmania@gmail.com>
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Sync with GNU C library and consolidate duplicate non
architecture specific defines.
MAP_UNINITIALIZED is only defined to 0x4000000 and used by
the Linux kernel when CONFIG_MMAP_ALLOW_UNINITIALIZED is enabled.
CONFIG_MMAP_ALLOW_UNINITIALIZED is only available for nommu.
See Documentation/nommu-mmap.txt.
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Sync with GNU C library. Found while trying to compile
linux-rdma to uClibc-ng.
Reported-by: Alexey Brodkin <Alexey.Brodkin@synopsys.com>
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Not perfect, but a starting point.
Some tests of the test suite are failing.
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Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
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Add some definitions and fix some types to make gdb compile
happy.
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This was found by Buildroot autobuilders for m68k.
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Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>
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These files are not used, no regression found while
running the testsuite.
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Sync mostly with GNU libc implementation of setjmp/longjmp.
Just generate PIC compatible code, so no difference for static
builds are made. Add sysdep.h with some handy assembly macros
used inside setjmp.S/__longjmp.S.
This unbreaks dynamic linker support, first test suite run
only shows 10 errors, which doesn't look so bad.
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Only alpha, hppa and sparc need non-default value.
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.globl can be used for every architecture so remove the define.
Sync with GNU C library.
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It's even no longer required for non-ported ppc64
architecture. Sync with GNU C library.
This simplify the macros in include/libc-symbols.h.
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into uClibc
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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The reason truncate64 takes 4 args on some arches is that their ABI
requires 64bit values to be aligned on register pair boundaries.
Since this alignment affects more than just truncate64, rename the
define to properly document its purpose. This also allows us to
expand it to the other impacted syscalls (which will be done in a
follow up commit).
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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This matches a similar change made to glibc.
No functional changes here.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Introduced in c53099f7
Signed-off-by: Steve Bennett <steveb@workware.net.au>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Linux 3.4 added __kernel_long_t and __kernel_ulong_t and various
exported header files were updated to use these new types. Add the
definitions for __kernel_long_t and __kernel_ulong_t to the relevant
kernel_types.h headers.
This change was automated with the following scriptlet
git grep --name-only 'typedef.*__kernel_old_dev_t' \
| xargs sed -i '/typedef.*__kernel_old_dev_t/ a\
typedef long\t\t__kernel_long_t;\
typedef unsigned long\t__kernel_ulong_t;'
Whitespace in arm, avr32, hppa, sparc was then manually fixed up.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
--
Here's a cleaned up patch which should get the whitespace right. I'm a
bit iffy about the sparc changes they make sense to me but it's not a
platform I have access to.
I can break this up per arch or per maintainer if requested.
libc/sysdeps/linux/alpha/bits/kernel_types.h | 2 ++
libc/sysdeps/linux/arm/bits/kernel_types.h | 2 ++
libc/sysdeps/linux/avr32/bits/kernel_types.h | 2 ++
libc/sysdeps/linux/bfin/bits/kernel_types.h | 2 ++
libc/sysdeps/linux/c6x/bits/kernel_types.h | 2 ++
libc/sysdeps/linux/cris/bits/kernel_types.h | 2 ++
libc/sysdeps/linux/e1/bits/kernel_types.h | 2 ++
libc/sysdeps/linux/h8300/bits/kernel_types.h | 2 ++
libc/sysdeps/linux/hppa/bits/kernel_types.h | 2 ++
libc/sysdeps/linux/i386/bits/kernel_types.h | 2 ++
libc/sysdeps/linux/ia64/bits/kernel_types.h | 2 ++
libc/sysdeps/linux/m68k/bits/kernel_types.h | 2 ++
libc/sysdeps/linux/microblaze/bits/kernel_types.h | 2 ++
libc/sysdeps/linux/mips/bits/kernel_types.h | 4 ++++
libc/sysdeps/linux/nios2/bits/kernel_types.h | 2 ++
libc/sysdeps/linux/powerpc/bits/kernel_types.h | 4 ++++
libc/sysdeps/linux/sh/bits/kernel_types.h | 2 ++
libc/sysdeps/linux/sh64/bits/kernel_types.h | 2 ++
libc/sysdeps/linux/sparc/bits/kernel_types.h | 4 ++++
libc/sysdeps/linux/v850/bits/kernel_types.h | 2 ++
libc/sysdeps/linux/x86_64/bits/kernel_types.h | 2 ++
libc/sysdeps/linux/xtensa/bits/kernel_types.h | 2 ++
22 files changed, 50 insertions(+)
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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__vfork is hidden.
__GI_vfork is strong (not weak as it was).
vfork is weak.
e1 can use the generic version.
Note: libc_hidden_def(x) has different meaning in .c and .S files.
Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Remove all others, only avr32 needs to be kept.
Define __UCLIBC_ARCH_HAS_6_ARGS__ where needed.
Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Make sure we use the new jmpbuf-*.h headers
While there, adapt the offset on microblaze and the _JMPBUF_UNWINDS macro on bfin,
it seems, these were changed in the meantime.
Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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A microblaze-specific sys/user.h is needed for (e.g.) strace,
so use this version from glibc.
Signed-off-by: Steve Bennett <steveb@workware.net.au>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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microblaze can either be with mmu or without
If with, use elf rather than flat, and support shared libs
Signed-off-by: Ryan Flux <ryan.flux@emsolutions.com.au>
Signed-off-by: Steve Bennett <steveb@workware.net.au>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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The linker does not set up the Small Data Area symbols,
_SDA_BASE_ and _SDA2_BASE_ so don't try to resolve them
Signed-off-by: Ryan Flux <ryan.flux@emsolutions.com.au>
Signed-off-by: Steve Bennett <steveb@workware.net.au>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Steve Bennett <steveb@workware.net.au>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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This avoids warnings about type-punned pointers
Signed-off-by: Steve Bennett <steveb@workware.net.au>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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These are split across objects so setting size does not (and never did)
work since the expression cannot be computed at assembly time.
This avoids errors from recent (> 2.21) gas.
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Removing them generally was not a good idea
This reverts commit 233c504cd940d9802226b6a3a092368b86978f5e.
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sed -i -e '/\.size[[:space:]]/d' $(grep -l "\.size" libc/sysdeps/linux/*/crt*.[sSc])
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Do not include Makefile.commonarch directly from within arch specific
Makefile, as it is already done in parent Maefile.in.
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
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Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
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Fix Microblaze config and makefiles.
Signed-off-by: Steven J. Magnani <steve@digidescorp.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Header files needed to build linuxthreads.old for microblaze.
Signed-off-by: Steven J. Magnani <steve@digidescorp.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Other header files for uClibc compilation.
Signed-off-by: Steven J. Magnani <steve@digidescorp.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Sync kernel header definitions with those used in recent mainline kernels.
Signed-off-by: Steven J. Magnani <steve@digidescorp.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Software floating point for microblaze.
Signed-off-by: Steven J. Magnani <steve@digidescorp.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Fix the microblaze vfork() and clone() implementations.
Add support for clone2().
Signed-off-by: Steven J. Magnani <steve@digidescorp.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Fix the microblaze syscall interface.
Recent mainline kernels no longer carry userland code to invoke syscalls
and microblaze can use the uClibc generic code.
Signed-off-by: Steven J. Magnani <steve@digidescorp.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Rework crt bootstrap to work with the new __uClibc_main(),
and hardwire crt init/fini code since the awk approach to generating it on
the fly doesn't work for microblaze. The output from the gcc 4.1.2 compiler
is scrambled so that the tags expected by the awk script to bracket the
init/fini entry and exit code no longer do.
Signed-off-by: Steven J. Magnani <steve@digidescorp.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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