This improves GDB usability when debugging code compiled with
optimization.
Upstream GDB revision f0031b6d3ae9b164b3747986ab898190bd4dcf8c (prior
to GDB's switch to GPLv3), with frame_debug_got_null_frame expanded
inline.
| 2004-12-12 Andrew Cagney <cagney@gnu.org>
|
| * frame.c (get_prev_frame): When unwinding normal frames, check
| that the PC isn't zero.
Sponsored by: ADARA Networks
MFC After: 1 month
X86: fcmov doesn't handle all possible EFLAGS, fall back to a branch
for the others.
Otherwise it will try to use SSE patterns and fail horribly if sse is
disabled.
Fixes PR14035.
This should fix the following assertion failure:
Assertion failed: (Reg >= X86::FP0 && Reg <= X86::FP6 && "Expected FP
register!"), function getFPReg, file
contrib/llvm/lib/Target/X86/X86FloatingPoint.cpp, line 330.
which can show up when compiling contrib/compiler-rt, using -march=i686
through -march=pentium3 (CPU's which do support fcmov, but don't support
SSE2).
MFC after: 1 week
Add a new warning -Wmissing-variable-declarations, to warn about variables
defined without a previous declaration. This is similar to
-Wmissing-prototypes, but for variables instead of functions.
Make sure always-inline functions get inlined. <rdar://problem/12423986>
Without this change, when the estimated cost for inlining a function with
an "alwaysinline" attribute was lower than the inlining threshold, the
getInlineCost function was returning that estimated cost rather than the
special InlineCost::AlwaysInlineCost value. That is fine in the normal
inlining case, but it can fail when the inliner considers the opportunity
cost of inlining into an internal or linkonce-odr function. It may decide
not to inline the always-inline function in that case. The fix here is just
to make getInlineCost always return the special value for always-inline
functions. I ran into this building clang with libc++. Tablegen failed to
link because of an always-inline function that was not inlined. I have been
unable to reduce the testcase down to a reasonable size.
This should fix the link errors that were reported when atf-run was
compiled with clang -stdlib=libc++. In this case, at -O3 optimization,
some calls to basic_ios::clear() were not inlined, even when the
function was marked __always_inline__.
Reported by: Jan Beich <jbeich@tormail.org>
MFC after: 1 week
when building other C++ software with it. Also fix one actual bug in
libsupc++, which was exposed by such a warning. This latter fix is the
only functional change.
MFC after: 1 week
this has many visibility problems fixed, which should help with
compiling certain ports that exercise C++11 mode (i.e. Firefox).
Also, belatedly add the LICENSE.TXT and accompanying CREDITS.TXT files,
which are referred to in all the source files.
MFC after: 1 month
X86: Disable long nops for all cpus prior to pentiumpro/i686.
This is the safest approach for now. If you think long nops matter a
lot for performance, compile with -march=i686 or higher. :)
MFC after: 3 days
This adds two features:
* uid_from_user() and gid_from_group() as the reverse of user_from_uid()
and groups_from_gid().
* pwcache_userdb() and pwcache_groupdb() which allow alternative lookup
functions to be used. For example lookups from passwd and group
databases in a non-standard location.
When creating MCAsmBackend pass the CPU string as well. In X86AsmBackend
store this and use it to not emit long nops when the CPU is geode which
doesnt support them.
Fixes PR11212.
Pull in r164133 from upstream clang trunk:
Follow up on llvm r164132.
This should prevent illegal instructions when building world on Geode
CPUs (e.g. Soekris).
MFC after: 3 days
Prevents a lockup when queried a deliberately constructed combination
of records. [CVE-2012-5166]
For more information: https://kb.isc.org/article/AA-00801
doesn't mean supporting IFT_PFSYNC (which I hope will eventually
die). This means decoding packets with IP protocol of 240 caught
on any normal interface like Ethernet.
The code is based on couple of files from OpenBSD, significantly
modified by myself.
Parser differentiates for four levels of verbosity: no -v, -v,
-vv and -vvv.
We don't yet forward this code upstream, because currently it
strongly relies on if_pfsync.h and even on pfvar.h. I hope that
this can be fixed in future.
Reviewed by: gnn, delphij
- Set IP_RECVDSTADDR sockopt on the socket only in case if
it is INADDR_ANY bound.
- Supply IP_SENDSRCADDR control message only if we did receive
IP_RECVDSTADDR control message.
This fixes operation of snmpd bound to a specific local IP address.
PR: bin/171279
Prevents a crash when queried for a record whose RDATA exceeds
65535 bytes.
Prevents a crash when validating caused by using "Bad cache" data
before it has been initialized.
ISC_QUEUE handling for recursive clients was updated to address
a race condition that could cause a memory leak. This rarely
occurred with UDP clients, but could be a significant problem
for a server handling a steady rate of TCP queries.
A condition has been corrected where improper handling of
zero-length RDATA could cause undesirable behavior, including
termination of the named process.
For more information: https://kb.isc.org/article/AA-00788
X86: Emitting x87 fsin/fcos for sinf/cosf is not safe without unsafe
fp math.
This should make clang emit calls to libm for sinf/cosf by default.
MFC after: 1 week
reside, and move there ipfw(4) and pf(4).
o Move most modified parts of pf out of contrib.
Actual movements:
sys/contrib/pf/net/*.c -> sys/netpfil/pf/
sys/contrib/pf/net/*.h -> sys/net/
contrib/pf/pfctl/*.c -> sbin/pfctl
contrib/pf/pfctl/*.h -> sbin/pfctl
contrib/pf/pfctl/pfctl.8 -> sbin/pfctl
contrib/pf/pfctl/*.4 -> share/man/man4
contrib/pf/pfctl/*.5 -> share/man/man5
sys/netinet/ipfw -> sys/netpfil/ipfw
The arguable movement is pf/net/*.h -> sys/net. There are
future plans to refactor pf includes, so I decided not to
break things twice.
Not modified bits of pf left in contrib: authpf, ftp-proxy,
tftp-proxy, pflogd.
The ipfw(4) movement is planned to be merged to stable/9,
to make head and stable match.
Discussed with: bz, luigi
- Pacific/Fiji will go into DST from 21 October 2012 till 20 January 2013.
- Fix offset for Pacific/Tokelau.
- Gaza and West Bank had DST from 29 March to 28 September 2012.
- Syria has DST from April till October
- Morocco had DST from April to September 2012 except for 20 July to 20 August.
- Cuba changed to DST from 1 April 2012 only.
- Haiti has DST between 8 March and 1 November in 2012.
Obtained from: ftp://ftp.iana.org/tz/releases/
IP_SENDSRCADDR control with datagram message we reply with. This makes
bsnmpd reply from exactly same address that request was sent to, thus
successfully bypassing stateful firewalls or other kinds of strict checking.
PR: bin/171279
from the control message, actually never worked. This means check_priv()
didn't work for local dgram sockets.
The SCM_CREDS control messages is received only in two cases:
1) If we did setsockopt(LOCAL_CREDS) on our socket, and in this case
the message is struct sockcred.
2) If sender did supplied SCM_CREDS control message in his sendmsg()
syscall. In this case the message is struct cmsgcred.
We can't rely on 2), so we will use 1) for dgram sockets. For stream
sockets it is more reliable to obtain accept-time credentials, since
SCM_CREDS control message is attached only on first read. Thus:
o Do setsockopt(LOCAL_CREDS) on local dgram sockets.
o Split check_priv() into check_priv_stream() and check_priv_dgram(),
and call them from recv_stream() and recv_dgram() respectively.
o Don't provide space for SCM_CREDS control message in recv_stream().
o Provide space for SCM_CREDS control message in recv_dgram(), but there
is no need to initialize anything in it.
o In recv_dgram() do not blindly expect that first message is SCM_CREDS,
instead use correct search cycle through control messages.
encounters a DT_RUNPATH entry, the global dynamic_info[] array is
overrun, causing some other global variable to be overwritten.
In my testcase, this was the section_headers variable, leading to
segfaults or jemalloc assertions when it was freed later on.
Thanks to Koop Mast for providing samples of a few "bad" .so files.
MFC after: 1 week
Merge existing attributes before processing pragmas in friend template
declarations.
Fixes pr13662.
This should help when building Firefox with libc++.
Magic tests containing "search" or "regex" directives were incorrectly
compiled by "mkmagic" and were effectively ignored. This caused troff
files (for example) to be detected as simply "ASCII text" instead of
as "troff or preprocessor input, ASCII text".
PR: bin/170415
Approved by: consensus on developers@
MFC after: 3 days
r238211:
Support TARGET_ARCH=armv6 and TARGET_ARCH=armv6eb
This adds a new TARGET_ARCH for building on ARM
processors that support the ARMv6K multiprocessor
extensions. In particular, these processors have
better support for TLS and mutex operations.
This mostly touches a lot of Makefiles to extend
existing patterns for inferring CPUARCH from ARCH.
It also configures:
* GCC to default to arm1176jz-s
* GCC to predefine __FreeBSD_ARCH_armv6__
* gas to default to ARM_ARCH_V6K
* uname -p to return 'armv6'
* make so that MACHINE_ARCH defaults to 'armv6'
It also changes a number of headers to use
the compiler __ARM_ARCH_XXX__ macros to configure
processor-specific support routines.
Submitted by: Tim Kientzle <kientzle@freebsd.org>
folding to 64 bits, while SHA1 code is big endian. Therefore, a bswap32
is required before using the value.
Without this change, the implementation does not conform to test vector
found in RFC 2289.
PR: bin/170519
Submitted by: Arthur Mesh <arthurmesh gmail com> (with changes)
MFC after: 1 week
This is mostly a no-op other than for ARM where it adds missing
__aeabi_mem* and __aeabi_*divmod functions. Even on ARM these will remain
unused until the rest of the ARM EABI code is merged.
unused -g, -emit-llvm or -w arguments when doing linking. E.g. invoking
"clang -g foo.o -o foo" will now be silent.
Reported by: Jakub Lach <jakub_lach@mailplus.pl>
MFC after: 1 week
in BIND9
High numbers of queries with DNSSEC validation enabled can cause an
assertion failure in named, caused by using a "bad cache" data structure
before it has been initialized.
CVE: CVE-2012-3817
Posting date: 24 July, 2012
including the include directive.
Fix minor build issue corrected by converting yypush_buffer_state and
yypop_buffer_state to yy_set_buffer_state and a hard-coded 100-deep
stack. It was easier to fix it here than to import that support into
our flex.
The new tools and test hardness remain unsupported at the moment.
desired, one can turn off the generation of post-ELF standard dtags by
overriding it with --disable-new-dtags after the default switch.
Immediate effect of the change is that -rpath path is now stored both
in DT_RPATH and DT_RUNPATH tags, which is the right way to provide
rpath for dynamic linker supporting DT_RUNPATH per specification.
Reviewed by: kan
MFC after: 1 month
When marking virtual functions as used for a class' vtable, mark all functions
which will appear in the vtable as used, not just those ones which were
declared within the class itself. Fixes an issue reported as comment#3 in
PR12763 -- we sometimes assert in codegen if we try to emit a reference to a
function declaration which we've not marked as referenced. This also matches
gcc's observed behavior.
This should fix clang assertions when building certain components of the
LibreOffice port.
MFC after: 3 days
adding appropriate table entries, the assembler had to be adjusted as
these are the first non-SSE instructions to use a 3-byte opcode (and a
mandatory prefix to boot).
MFC after: 1 month
instructions. I reimplemented this from scratch based on the Intel
manuals and the existing support for handling the fxsave and fxrstor
instructions. This will let us use these instructions natively with GCC
rather than hardcoding the opcodes in hex.
Reviewed by: kib
MFC after: 1 month
usage on hosts using ZFS. The new line displays the total amount of RAM
used by the ARC along with the size of MFU, MRU, anonymous (in flight),
headers, and other (miscellaneous) sub-categories. The line is not
displayed on systems that are not using ZFS.
Reviewed by: avg, fs@
MFC after: 3 days
The GCC4.3 branch contains some optimization fixes
that were not considered regressions and therefore
were never backported. We are bringing a couple of
them that are under GPLv2 since they were made
before the license switch upstream.
While here, add the GCC revision numbers in the
log.
Discussed with: jkim
MFC after: 1 week
