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* MFC 321762Sepherosa Ziehau2017-08-071-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | hyperv: Add VF bringup scripts and devd rules. How network VF works with hn(4) on Hyper-V in non-transparent mode: - Each network VF has a cooresponding hn(4). - The network VF and the it's cooresponding hn(4) have the same hardware address. - Once the network VF is up, e.g. ifconfig VF up: o All of the transmission should go through the network VF. o Most of the reception goes through the network VF. o Small amount of reception may go through the cooresponding hn(4). This reception will happen, even if the the cooresponding hn(4) is down. The cooresponding hn(4) will change the reception interface to the network VF, so that network layer and application layer will be tricked into thinking that these packets were received by the network VF. o The cooresponding hn(4) pretends the physical link is down. - Once the network VF is down or detached: o All of the transmission should go through the cooresponding hn(4). o All of the reception goes through the cooresponding hn(4). o The cooresponding hn(4) fallbacks to the original physical link detection logic. All these features are mainly used to help live migration, during which the network VF will be detached, while the network communication to the VM must not be cut off. In order to reach this level of live migration transparency, we use failover mode lagg(4) with the network VF and the cooresponding hn(4) attached to it. To ease user configuration for both network VF and non-network VF, the lagg(4) will be created by the following rules, and the configuration of the cooresponding hn(4) will be applied to the lagg(4) automatically. Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D11635 Notes: svn path=/stable/10/; revision=322129
* MFC r320491:Enji Cooper2017-07-311-0/+1
| | | | | | | | | | atf-sh(3): document atf_init_test_cases(3) fully The function was missing from the NAME/SYNOPSIS sections. Add a manpage link to complete the documentation reference. Notes: svn path=/stable/10/; revision=321755
* MFC r314653:Enji Cooper2017-07-2010-15/+14
| | | | | | | | | libexec: normalize paths using SRCTOP-relative paths or :H when possible This simplifies make logic/output Notes: svn path=/stable/10/; revision=321267
* MFC r316552,r319662:Enji Cooper2017-07-181-1/+23
| | | | | | | | | | | | | | | | | | | r316552: atf-c: fix documentation description for atf_utils_wait(3) atf_utils_wait(3) should be used in combination with atf_utils_fork(3), not itself (atf_utils_wait(3)). r319662: Add MLINKS for atf-sh(3) to each of the functions it implements This hopefully will make atf-sh(3) easier to understand for newcomers, without having to go through the atf-sh(3) level of indirection. Notes: svn path=/stable/10/; revision=321141
* MFC r320433:Xin LI2017-07-171-5/+2
| | | | | | | Use strlcpy() instead of strncpy() and nul-terminating. Notes: svn path=/stable/10/; revision=321069
* MFC r320658:Konstantin Belousov2017-07-111-3/+7
| | | | | | | When reporting undefined symbol, note the version, if specified. Notes: svn path=/stable/10/; revision=320888
* MFC r320644:Allan Jude2017-07-042-2/+20
| | | | | | | Add deprecation notices for all rcmd tools Notes: svn path=/stable/10/; revision=320646
* MFC r313494:Konstantin Belousov2017-02-241-8/+12
| | | | | | | Handle protected symbols in rtld. Notes: svn path=/stable/10/; revision=314199
* MFC r289172,r290254:Enji Cooper2017-02-094-12/+4
| | | | | | | | | | | | | | | | | | | r289172: Refactor the test/ Makefiles after recent changes to bsd.test.mk (r289158) and netbsd-tests.test.mk (r289151) - Eliminate explicit OBJTOP/SRCTOP setting - Convert all ad hoc NetBSD test integration over to netbsd-tests.test.mk - Remove unnecessary TESTSDIR setting - Use SRCTOP where possible for clarity r290254: Remove unused variable (SRCDIR) Notes: svn path=/stable/10/; revision=313488
* MFC r311473:Enji Cooper2017-02-042-3/+13
| | | | | | | | | Conditionalize all code that uses tcpd.h behind `LIBWRAP` guard This will allow the code to stand by itself without libwrap Notes: svn path=/stable/10/; revision=313226
* MFC r311886:Konstantin Belousov2017-01-241-23/+28
| | | | | | | | | Fix acquisition of nested write compat rtld locks. PR: 215826 Notes: svn path=/stable/10/; revision=312701
* MFC r310025:Bryan Drewery2017-01-241-2/+2
| | | | | | | Take write lock for rtld_bind before modifying obj_list in dl_iterate_phdr(). Notes: svn path=/stable/10/; revision=312700
* MFC r311984:Konstantin Belousov2017-01-191-8/+20
| | | | | | | | For the main binary, postpone enforcing relro read-only protection until copy relocations are done. Notes: svn path=/stable/10/; revision=312402
* MFC r311879:Konstantin Belousov2017-01-171-4/+4
| | | | | | | Use ANSI C definitions, update comment. Notes: svn path=/stable/10/; revision=312340
* MFC r310609: Don't use high precision clock for expiration as only secondXin LI2017-01-091-7/+7
| | | | | | | portion is used. Notes: svn path=/stable/10/; revision=311751
* MFC r310608: Avoid use after free.Xin LI2017-01-091-4/+6
| | | | Notes: svn path=/stable/10/; revision=311747
* MFC r310155:Konstantin Belousov2016-12-191-1/+1
| | | | | | | Fix typo. Notes: svn path=/stable/10/; revision=310238
* MFC 308456: Pass the correct flag to find_symdef() from _rtld_bind().John Baldwin2016-12-012-3/+3
| | | | | | | | | | | When symbol versioning was added to rtld, the boolean 'in_plt' argument to find_symdef() was converted to a bitmask of flags. The first flag added was 'SYMLOOK_IN_PLT' which replaced the 'in_plt' bool. This happened to still work by accident as SYMLOOK_IN_PLT had the value of 1 which is the same as 'true', so there should be no functional change. Notes: svn path=/stable/10/; revision=309371
* MFC r308689:Konstantin Belousov2016-11-2318-4/+142
| | | | | | | | | | | | | Pass CPUID[1] %edx (cpu_feature), %ecx (cpu_feature2) and CPUID[7].%ebx (cpu_stdext_feature), %ecx (cpu_stdext_feature2) to the ifunc resolvers on x86. MFC r308925: Adjust r308689 to make rtld compilable with either in-tree or (hopefully) stock gcc 4.2.1 on i386 and other arches. Notes: svn path=/stable/10/; revision=309061
* MFC r308688:Konstantin Belousov2016-11-221-1/+1
| | | | | | | Assert that there is no unresolved symbols during rtld linking. Notes: svn path=/stable/10/; revision=308967
* MFC r308687:Konstantin Belousov2016-11-221-1/+1
| | | | | | | Update hint to utilize user variable. Notes: svn path=/stable/10/; revision=308966
* MFstable/11 r307721:Enji Cooper2016-10-212-2/+2
| | | | | | | | | MFC r306029: Use SRCTOP instead of the longhand version for defining the path to contrib/atf Notes: svn path=/stable/10/; revision=307722
* MFC r304012:Konstantin Belousov2016-08-191-0/+4
| | | | | | | Fill phdr and phsize for rtld object. Notes: svn path=/stable/10/; revision=304455
* MFC r304011:Konstantin Belousov2016-08-191-10/+6
| | | | | | | Remove all remaining uses of TAILQ_FOREACH_FROM() from rtld-elf. Notes: svn path=/stable/10/; revision=304454
* MFC r302908:Bryan Drewery2016-07-221-1/+1
| | | | | | | | Fix dlsym(RTLD_NEXT) handling to only return the next library in last library cases. Notes: svn path=/stable/10/; revision=303169
* MFC r300691:Konstantin Belousov2016-06-081-7/+28
| | | | | | | Fix issues found by Coverity in the rtld-elf.c:gethints(). Notes: svn path=/stable/10/; revision=301581
* MFC r299585Don Lewis2016-05-201-3/+3
| | | | | | | | | | | | Declare line[] in the outermost scope of retrieve() instead of declaring it in an inner scope and then using it via a pointer in the outer scope. Reported by: Coverity CID: 605895 Notes: svn path=/stable/10/; revision=300273
* MFC r296319:Konstantin Belousov2016-03-163-19/+42
| | | | | | | | | | Fix handling of DT_TEXTREL for an object with more than one read-only segment. PR: 207631 Notes: svn path=/stable/10/; revision=296939
* MFC r295079:Enji Cooper2016-03-121-1/+2
| | | | | | | | | | Fix the type for hw.ncpu, so sysctlbyname doesn't consistently fail on 64-bit architectures where sizeof(int) != sizeof(size_t). PR: 206758 Notes: svn path=/stable/10/; revision=296756
* MFC r257811 (by markj):Konstantin Belousov2016-03-129-93/+173
| | | | | | | | | | | | | | | | | | Include rtld itself when iterating over loaded ELF objects in dl_iterate_phdr(3). MFC r294373: Do not call callbacks for dl_iterate_phdr(3) with the rtld bind and phdr locks locked. MFC r294470 (by kan): Fix initlist_add_object invocation parameters. MFC r294936 (by kan): Do not unlock rtld_phdr_lock over callback invocations. Notes: svn path=/stable/10/; revision=296727
* MFC r292705: rtld: remove old XXX comment missed in r35529Ed Maste2016-01-071-1/+0
| | | | Notes: svn path=/stable/10/; revision=293317
* MFC r291348:Bryan Drewery2015-12-043-3/+3
| | | | | | | Use LIBEXECDIR for /usr/libexec. Notes: svn path=/stable/10/; revision=291819
* MFC r289324:Konstantin Belousov2015-10-281-3/+21
| | | | | | | | Allow PT_NOTES segments to be located anywhere in the executable image. Notes: svn path=/stable/10/; revision=290099
* Disable SSE in libthrEric van Gyzen2015-10-262-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clang emits SSE instructions on amd64 in the common path of pthread_mutex_unlock. If the thread does not otherwise use SSE, this usage incurs a context-switch of the FPU/SSE state, which reduces the performance of multiple real-world applications by a non-trivial amount (3-5% in one application). Instead of this change, I experimented with eagerly switching the FPU state at context-switch time. This did not help. Most of the cost seems to be in the read/write of memory--as kib@ stated--and not in the #NM handling. I tested on machines with and without XSAVEOPT. One counter-argument to this change is that most applications already use SIMD, and the number of applications and amount of SIMD usage are only increasing. This is absolutely true. I agree that--in general and in principle--this change is in the wrong direction. However, there are applications that do not use enough SSE to offset the extra context-switch cost. SSE does not provide a clear benefit in the current libthr code with the current compiler, but it does provide a clear loss in some cases. Therefore, disabling SSE in libthr is a non-loss for most, and a gain for some. I refrained from disabling SSE in libc--as was suggested--because I can't make the above argument for libc. It provides a wide variety of code; each case should be analyzed separately. https://lists.freebsd.org/pipermail/freebsd-current/2015-March/055193.html Suggestions from: dim, jmg, rpaulo Sponsored by: Dell Inc. Notes: svn path=/stable/10/; revision=290014
* MFC r287369:Andrew Turner2015-09-081-1/+1
| | | | | | | | | | | | | | | | | | | | | | Ensure we use calculate_first_tls_offset, even if the main program doesn't have TLS program header. This is needed on architectures with Variant I tls, that is arm, arm64, mips, and powerpc. These place the thread control block at the start of the buffer and, without this, this data may be trashed. This appears to not be an issue on mips or powerpc as they include a second adjustment to move the thread local data, however this is on arm64 (with a future change to fix placing this data), and should be on arm. I am unable to trigger this on arm, even after changing the code to move the data around to make it more likely to be hit. This is most likely because my tests didn't use the variable in offset 0. Reviewed by: kib MFC after: 1 week Sponsored by: ABT Systems Ltd Notes: svn path=/stable/10/; revision=287560
* MFC r282551: Remove historical GNUC testEd Maste2015-08-312-8/+0
| | | | | | | | | | The requirement is for a GCC-compatible compiler and not necessarily GCC itself. However, we currently expect any compiler used for building the whole of FreeBSD to be GCC-compatible and many things will break if not; there's no longer a need to have an explicit test for this in rtld. Notes: svn path=/stable/10/; revision=287331
* MFC 284709:Warren Block2015-06-301-11/+13
| | | | | | | | Call /etc/crontab the "system crontab", not "root's crontab". While here, fix some other wording issues Notes: svn path=/stable/10/; revision=284970
* MFH (r277695): allow tracing dlfunc() / dlsym() eventsDag-Erling Smørgrav2015-06-301-4/+13
| | | | Notes: svn path=/stable/10/; revision=284954
* MFC r282245:Konstantin Belousov2015-05-061-14/+0
| | | | | | | | | | Remove the #ifdef DEBUG code, which is not compilable on 64bit architectures. PR: 199767 Notes: svn path=/stable/10/; revision=282523
* MFC r282109:Konstantin Belousov2015-05-041-36/+45
| | | | | | | Always do token substitution, do not require -z origin to do it. Notes: svn path=/stable/10/; revision=282412
* MFC r281107: MIPS rtld: report missing symbol rather than segfaultingEd Maste2015-04-281-1/+1
| | | | | | | | This is only an interim fix; MIPS should be using the MI code instead, which does not have this issue. Notes: svn path=/stable/10/; revision=282142
* MFC r281005: Make die available as rtld_die for use by MD relocation codeEd Maste2015-04-282-19/+19
| | | | | | | Sponsored by: The FreeBSD Foundation Notes: svn path=/stable/10/; revision=282118
* MFC r281549:Konstantin Belousov2015-04-222-17/+31
| | | | | | | Implement support for -z global linker option. Notes: svn path=/stable/10/; revision=281849
* MFC r268182: Initialize page sizes early for ia64.Peter Wemm2015-04-132-0/+9
| | | | Notes: svn path=/stable/10/; revision=281486
* MFC r280816:Konstantin Belousov2015-04-1212-16/+43
| | | | | | | Change default visibility for rtld to hidden, on x86. Notes: svn path=/stable/10/; revision=281453
* MFC r264346 (by alc):Konstantin Belousov2015-04-124-25/+67
| | | | | | | | Pass MAP_ALIGNED_SUPER to allocate the whole dso region if its text is large enough for the superpage mapping. Notes: svn path=/stable/10/; revision=281452
* MFC: r279364Jung-uk Kim2015-03-061-8/+7
| | | | | | | Use realpath(3) to properly expand $ORIGIN to its absolute path. Notes: svn path=/stable/10/; revision=279713
* MFC r278192:Enji Cooper2015-03-011-6/+24
| | | | | | | | | | | | | | | | | | | Add the following options to enable/disable several features in the base system WITHOUT_BOOTPARAMD - bootparamd WITHOUT_BOOTPD - bootpd WITHOUT_FINGER - finger, fingerd WITHOUT_FTP - ftp, ftpd WITHOUT_INETD - inetd WITHOUT_RBOOTD - rbootd WITHOUT_TCP_WRAPPERS - tcpd, et al WITHOUT_TFTP - tftp, tftp-server WITHOUT_TIMED - timed Sponsored by: EMC / Isilon Storage Division Notes: svn path=/stable/10/; revision=279505
* MFC 275412:John Baldwin2015-02-231-0/+2
| | | | | | | | | | | | | | | | The runtime linker needs to include a path to itself in the link map it exports to the debugger. It currently has two choices: it can use a compiled-in path (/libexec/ld-elf.so.1) or it can use the path stored in the interpreter path in the binary being executed. The runtime linker currently prefers the second. However, this is usually wrong for compat32 binaries since the binary specifies the path of rtld on a 32-bit system (/libexec/ld-elf.so.1) instead of the actual path (/libexec/ld-elf32.so.1). For now, always assume the compiled in path (/libexec/ld-elf32.so.1) as the rtld path and ignore the path in the binary for the 32-bit runtime linker. Notes: svn path=/stable/10/; revision=279218
* MFC r277676:Enji Cooper2015-02-131-1/+4
| | | | | | | | | | | r277676: Add MK_TALK knob for building the talk and talkd Sponsored by: EMC / Isilon Storage Division Notes: svn path=/stable/10/; revision=278710
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