Age | Commit message (Collapse) | Author |
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Fixed in glibc commit f9cfa295ae3f2556bd8808f0ff693cfe44f4ac25.
Found via Buildroot autobuilder and gdbm package cross-compile.
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man feature_test_macros(7) specifies that _BSD_SOURCE and _SVID_SOURCE have
been deprecated in favor of _DEFAULT_SOURCE since libc 2.20. Specifying
either of the former is now equivalent to specifying just the latter. We add
this macro to conform to this standard, but do not add the compiler warning
to maintain full backwards compatibility with earlier version of glibc and
uclibc.
Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
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Remove a lot of unused 64 Bit header stuff.
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This syncs up <sys/reboot.h> with the GNU C library, see their
commit 1a09dc56. These constants are needed by init systems like
openrc.
Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
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Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
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Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
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As reported by Bering-uClibc project uClibc-ng for x86
generates a segfault on SMP machines when trying to run ntpd.
A small test case is here: https://gist.github.com/ddrown
Use a similar nop instruction as for x86_64 in the code.
Signed-off-by: KP.Kirchdoerfer <kapeka@bering-uclibc.de>
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Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
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For the linux kernel (since 2.6.12) MAKE_THREAD_CPUCLOCK
macro-like computation should be used to get clockid.
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This is a second attempt to fix a compilation failure involving a
missing struct timespec definition in some situation. Previous attempt
was following commit but it had undesirable side effects and was
reverted:
657c4a9d6c fcntl.h: fix a missing `struct timespec` definition
A similar issue was identified and reported in glibc [1], and the fix
was to include the timespec definition if __USE_XOPEN2K8 was defined. To
minimize the possible impact of this new fix, it was decided to not
replace __USE_ATFILE by __USE_XOPEN2K8 as glibc did, but to add an
additional OR condition on __USE_XOPEN2K8.
[1] https://sourceware.org/bugzilla/show_bug.cgi?id=21371
Signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com>
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cleanup unused and unsupported code.
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Binutils emits by default lazy relocations for TLSDESC and
ld.so need to handle that. Fixes problems like:
can't handle reloc type 0x407
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Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
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Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
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Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
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If you enable these wrappers, be sure you don't need long double
precision on your embedded device, as these only enables
long double warpper functions to the existing double math
functions. Required to build some software as lvm2.
Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
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Inner loop was using same counter variable (i) as the outer loop, therefore
making outer loop terminate before it visited all of the ELF program segments.
Surrounding code in this inner loop clearly shows the intention that this loop
should not affect the outer one, therefore leading me to the conclusion that
this should be a bug an not expected code.
This bug was detected due to some other bug in ARC binutils that kept setting
TEXTREL for any PIE application.
Apart from the but, I have also moved the debug message inside of the TEXTREL
condition as mprotect is only really called if TELTREL is set.
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_dl_zalloc callers don't check for allocaton failure. It kind of makes
sense since such early allocations are unlikely to fail, and even if
they do, ldso would segv anyways thus bringing the issue to attention.
However there's a gcc nuance which led to this patch.
It seems gcc at -O2 (for DODEBUG build), does additional coge gen
analysis for pointer dereference from erroneous paths and it "isolates"
such code paths with a intrinsic abort/trap etc.
The ldso code fragment which was triggering this:
| add_ldso(struct dyn_elf *rpnt)
| if (rpnt)
| ...
| else
| rpnt = _dl_zalloc()
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| rpnt->dyn = tpnt <---- potential NULL pointer deref
ARC gcc currently generates an abort() call which doesn't exist in ldso,
causing link errors (with a newer vrsion of binutils).
ARM gcc 6.2.1 behaves similarly, altough instead of abort, it generates
a trap inducing UDF instruction
| 367c: ebfffb79 bl 2468 <_dl_malloc>
| 3680: e51b2068 ldr r2, [fp, #-104] ; 0xffffff98
| 3684: e3500000 cmp r0, #0
| 3688: 0a000006 beq 36a8 <_dl_add_elf_hash_table+0x280>
| ...
| 36a8: e5862000 str r2, [r6]
| 36ac: e7f000f0 udf #
So add an explict dl_exit() in dl_zalloc error case to beat the
compiler.
Note that this error propagagtion analysis stops if the function in
consideration (_dl_zalloc) is NOT inlined. Hence the reason it only
shows up for DODEBUG builds which builds ldso at -O2 which is more
aggressive about inlining.
If this patch is not considered worth applying then the workaround
suggested by Claudiu is to to build ldso with
-fno-isolate-erroneous-paths-dereference
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
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This reverts commit 657c4a9d6c2e649d86307f46ce9d5e44192f6e7a.
This breaks a lot of package cross-compilation as lvm, ruby,
ipsec-tools. :(
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Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
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the --discard-* toggles take away the symbols which comes in the way
when staring at objdumps for debugging low level issues
So don't discard symbols for DODEBUG builds
before
-----
3388: j_s.d [blink]
338a: add_s sp,sp,0x18
338c: b.d 332c <_dl_add_elf_hash_table+0x50>
3390: mov_s r2,0
3392: nop_s
3394: push_s blink <--- function not called out
3396: st.aw r13,[sp,-20]
339a: std r14r15,[sp,4]
339e: std r16r17,[sp,12]
after
-----
3388: j_s.d [blink]
338a: add_s sp,sp,0x18
338c: b.d 332c <_dl_add_elf_hash_table+0x50>
3390: mov_s r2,0
3392: nop_s
00003394 <add_ldso.isra.9>:
3394: push_s blink
3396: st.aw r13,[sp,-20]
339a: std r14r15,[sp,4]
339e: std r16r17,[sp,12]
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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Either toolchain defaults or buildsystems should provide the
architecture specific CFLAGS and LDFLAGS.
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The included RPC implementation is ipv4 only.
Other C library projects have either deprecated the internal
RPC implementation (GNU C Library) or never implemented such
functionality (musl C Library). The latest rpcbind release (0.2.4)
checks for libtirpc and does not allow to be build with uClibc-ng
RPC without patching. The common use case for RPC nowadays is to
use rpcbind together with nfs-utils to provide NFS server or client
support to a system.
The included RPC implementation does create issues with duplicate
symbol failures when statically compiling with RPC enabled.
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The header is not in sync with GNU libc and Linux kernel and
therefore produces compile errors with qemu-user (2.8.0).
Reported-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
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This follows the recommendations outlined in Network Operations Division
Cryptographic Requirements published on wikileaks on March 2017.
We discard more bytes of the first keystream to reduce possibility of
non-random bytes.
This is similar to a change in FreeBSD:
https://svnweb.freebsd.org/base?view=revision&revision=315225
Signed-off-by: Loganaden Velvindron <logan@hackers.mu>
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... before falling back to ld.so installation path (it is not the same -
gcc uses /lib/ld-uClibc-x86-64.so.0 for uClibc) or default /lib:/usr/lib.
This matches glibc behavior (see trusted-dirs.h generated during glibc
build).
Signed-off-by: Alexey Neyman <stilor@att.net>
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... where install does not have a -D option.
Signed-off-by: Alexey Neyman <stilor@att.net>
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If a source file is compiled with:
#define _XOPEN_SOURCE 700
#define _POSIX_C_SOURCE 200112L
Then including fcntl.h results in the following error:
In file included from fcntl.h:37:0,
from test.c:4:
sys/stat.h:371:54: error: array type has incomplete element type ‘struct timespec’
extern int futimens (int __fd, const struct timespec __times[2]) __THROW;
To fix that, we force the definition of struct timespec in fcntl.h when
__USE_XOPEN2K8 is defined. This mimics the behavior of glibc which
contains the following line in its io/fcntl.h header (included by
fcntlh.h):
#ifdef __USE_XOPEN2K8
# include <bits/types/struct_timespec.h>
#endif
This bug was spotted during the compilation of BoringSSL against uClibc.
Signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com>
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Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
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As reported by Buildroot developers these files causing static
linking issues. The original contribution with the ARM unwind-resume
rework and GNU libc sync was made before the combined libc change.
But the patch was applied later, after the libc change and
it seems the test coverage for static linking didn't catch it in
the regression testing. Remove the files.
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
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Patch fetched from GNU libc mailinglist.
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The new code get's used by MIPS64 N64 and fails.
Make the new code aarch64 specific.
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