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* MFC r314556-r314558brooks2017-03-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | r314556: Correct MDSRCS use in <arch>/string/Makefile.inc. - Remove .c files which duplicate entries in MISRCS. - Use the same, less merge conflict prone style in all cases. - Use MDSRCS for mips (.c and .S files both ended up in SRCS). - Remove pointless sparc64 Makefile.inc. - Remove uninformative foreign VCS ID entries. Reviewed by: emaste, imp, jhb MFC after: 1 week Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D9841 r314557: Correct an misunderstanding of MDSRCS. MDSRCS it intended to allow assembly versions of funtions with C implementations listed in MISRCS. The selection of the correct machdep_ldis?.c for a given architecture does not follow this pattern and the file should be added to SRCS directly. Reviewed by: emaste, imp, jhb MFC after: 1 week Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D9841 r314558: Garbage collect unused gdtoa related files on mips. Reviewed by: emase, imp, jhb MFC after: 1 week Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D9841
* MFC r304928:kib2016-09-032-62/+1
| | | | | | | | | | | | | Do not obliterate errno value in the main thread during ptrace(2) call on x86. MFC r304931: Follow ABI when calling __error from the ptrace(2) wrapper. MFC r305012: Rewrite ptrace(2) wrappers in C. MFC r305022: Restore the requirement of setting errno to zero before calling ptrace(2).
* Replace use of the pipe(2) system call with pipe2(2) with a zero flagsbrooks2016-06-222-47/+1
| | | | | | | | | | | | | | | | value. This eliminates the need for machine dependant assembly wrappers for pipe(2). It also make passing an invalid address to pipe(2) return EFAULT rather than triggering a segfault. Document this behavior (which was already true for pipe2(2), but undocumented). Reviewed by: andrew Approved by: re (gjb) Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D6815
* libc: make some more use of the nitems() macro.pfg2016-04-161-2/+2
| | | | | | | | We have an nitems() macro in the <sys/param.h> header that is convenient to re-use as it makes things easier to read. Given that it is available already without adding additional headers and other parts of libc already use it, extend a bit more its use.
* libc: stop exporting cerroremaste2016-03-301-1/+0
| | | | | | | | | | i386 stopped exporting .cerror in r240152, and likewise for amd64 in r240178. It is not used by other libraries on any platform, so apply the same change to the remaining architectures. Reviewed by: jhibbits, jilles Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D5774
* libc: stop exporting curbrk and minbrk in the private namespaceemaste2016-03-241-2/+0
| | | | | | | | | They are not used anywhere else in the base system and are an internal implementation detail that does not need to be exposed. Reviewed by: kib Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D5728
* Make unions in PowerPC libc endian-safe.nwhitehorn2016-02-262-2/+22
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* Add include for declaration of _set_tp(). Eliminates -Wmissing-prototypes ↵rodrigc2015-09-201-0/+1
| | | | warnings.
* The lseek(2), mmap(2), truncate(2), ftruncate(2), pread(2), andkib2015-04-181-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | pwrite(2) syscalls are wrapped to provide compatibility with pre-7.x kernels which required padding before the off_t parameter. The fcntl(2) contains compatibility code to handle kernels before the struct flock was changed during the 8.x CURRENT development. The shims were reasonable to allow easier revert to the older kernel at that time. Now, two or three major releases later, shims do not serve any purpose. Such old kernels cannot handle current libc, so revert the compatibility code. Make padded syscalls support conditional under the COMPAT6 config option. For COMPAT32, the syscalls were under COMPAT6 already. Remove WITHOUT_SYSCALL_COMPAT build option, which only purpose was to (partially) disable the removed shims. Reviewed by: jhb, imp (previous versions) Discussed with: peter Sponsored by: The FreeBSD Foundation MFC after: 1 week
* Fix powerpc setjmp FPR saving/restoring.jhibbits2015-04-083-108/+108
| | | | X-MFC-With: r279784
* libc: Eliminate duplicate copies of __vdso_gettc.cemaste2015-04-022-49/+1
| | | | | Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D2152
* Save and restore non-volatile floating-point registers during longjmp().nwhitehorn2015-03-083-0/+126
| | | | | | | | | | | This should also save and restore non-volatile Altivec registers, but that needs to wait on solving two problems: 1. Adding the nonvolatile vector registers means we need 5 more than _JBLEN entries in jmp_buf on 32-bit targets (64-bit is OK). 2. Need to figure out how to determine if saving/restoring vector regs is supported on the current CPU from userland. MFC after: 1 month
* Remove duplicate copies of trivial getcontextx.cemaste2015-01-122-78/+4
| | | | | | | | | | Only i386 and amd64 provide a non-trivial __getcontextx(). Use a common trivial implementation in gen/ for other architectures, rather than copying the file to each MD subdirectory. Reviewed by: kib Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D1472
* Avoid use of register variables. Clang 3.5 treats this as undefined behavior,jhibbits2015-01-061-2/+1
| | | | | | and bad things happen. MFC after: 1 week
* Ensure that every ENTRY(foo) has a matching END(foo).bapt2014-10-0111-0/+14
| | | | | | | It allows to build with newer binutils Differential Revision: https://reviews.freebsd.org/D877 Reviewed by: jhibbits
* Convert from WITHOUT_SYSCALL_COMPAT to MK_SYSCALL_COMPAT.imp2014-04-051-1/+1
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* Replace use of ${.CURDIR} by ${LIBC_SRCTOP} and define ${LIBC_SRCTOP}marcel2014-03-041-1/+1
| | | | | | | | | | | if not already defined. This allows building libc from outside of lib/libc using a reach-over makefile. A typical use-case is to build a standard ILP32 version and a COMPAT32 version in a single iteration by building the COMPAT32 version using a reach-over makefile. Obtained from: Juniper Networks, Inc.
* Get rid of the CONCAT macro.andreast2013-11-231-9/+9
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* Revert r253748,253749avg2013-07-281-0/+1
| | | | | | This WIP should not have been committed yet. Pointyhat to: avg
* remove needless inclusion of machine/cpu.h in userlandavg2013-07-281-1/+0
| | | | MFC after: 21 days
* The getcontext() from the __fillcontextx() call in thekib2013-05-281-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | check_deferred_signal() returns twice, since handle_signal() emulates the return from the normal signal handler by sigreturn(2)ing the passed context. Second return is performed on the destroyed stack frame, because __fillcontextx() has already returned. This causes undefined and bad behaviour, usually the victim thread gets SIGSEGV. Avoid nested frame and the need to return from it by doing direct call to getcontext() in the check_deferred_signal() and using a new private libc helper __fillcontextx2() to complement the context with the extended CPU state if the deferred signal is still present. The __fillcontextx() is now unused, but is kept to allow older libthr.so to be used with the new libc. Mark __fillcontextx() as returning twice [1]. Reported by: pgj Pointy hat to: kib Discussed with: dim Tested by: pgj, dim Suggested by: jilles [1] MFC after: 1 week
* Rework the __vdso_* symbols attributes to only make the symbols weak,kib2013-01-302-0/+50
| | | | | | | | | | but use normal references instead of weak. This makes the statically linked binaries to use fast gettimeofday(2) by forcing the linker to resolve references and providing the neccessary functions. Reported by: bde Tested by: marius (sparc64) MFC after: 2 weeks
* Doh... Don't add __eabi to an old version tag (i.e. FBSD_1.0). Add it to themarcel2012-05-251-1/+4
| | | | | | current one (= FBSD_1.3). Pointed out by: kib
* Allow building for the PowerPC EABI by providing a dummy __eabi()marcel2012-05-243-1/+35
| | | | | | | function. The purpose of the __eabi() function is to set up the runtime and is called first thing by main(). The runtime is already set up for us prior to caling main, so there's nothing to do for us in the EABI case.
* Do not restore the register holding the TLS pointer when doing variousnwhitehorn2012-04-113-3/+0
| | | | | | | | | | usermode context switches (long jumps and ucontext operations). If these are used across threads, multiple threads can end up with the same TLS base. Madness will then result. This makes behavior on PPC match that on x86 systems and on Linux. MFC after: 10 days
* Replace the assembler macro WEAK_ALIAS with a new macro WEAK_REFERENCE whichandreast2012-02-052-17/+17
| | | | | | | | | has the same API as __weak_reference(). Give 'x' in SYS.h a more meaningful name. Tested on 32- and 64-bit PowerMac. Reviewed by: bde
* Make the sys/ucontext.h self-contained by changing the return typekib2012-02-011-1/+1
| | | | | | | of __getcontextx_size(3) from size_t to int. PR: ports/164654 MFC after: 1 month
* Add API for obtaining extended machine context states that cannot bekib2012-01-212-1/+70
| | | | | | | | | | | fit into existing mcontext_t. On i386 and amd64 do return the extended FPU states using getcontextx(3). For other architectures, getcontextx(3) returns the same information as getcontext(2). Tested by: pho MFC after: 1 month
* Two other places where we can use WEAK_ALIAS.andreast2012-01-081-2/+1
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* Use the macro WEAK_ALIAS. Tested on 32 and 64-bit.andreast2012-01-061-10/+5
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* Replace a proliferation of buggy MD implementations of modf() with adas2011-10-213-109/+1
| | | | | | | working MI one. The MI one only needs to be overridden on machines with non-IEEE754 arithmetic. (The last supported one was the VAX.) It can also be overridden if someone comes up with a faster one that actually passes the regression tests -- but this is harder than it sounds.
* Fix typos - remove duplicate "the".brucec2011-02-211-1/+1
| | | | | | PR: bin/154928 Submitted by: Eitan Adler <lists at eitanadler.com> MFC after: 3 days
* Mark assembler sources from libc as working with non-executable stack.kib2011-01-1412-1/+22
| | | | Reviewed and tested by: nwhitehorn
* The NetBSD Foundation has granted permission to remove clause 3 and 4 fromjoel2010-03-025-35/+0
| | | | | | their software. Obtained from: NetBSD
* Mark uname(), getdomainname() and setdomainname() with COMPAT_FREEBSD4.ed2008-11-091-2/+1
| | | | | | | | | | | | | | | | | | | | | Looking at our source code history, it seems the uname(), getdomainname() and setdomainname() system calls got deprecated somewhere after FreeBSD 1.1, but they have never been phased out properly. Because we don't have a COMPAT_FREEBSD1, just use COMPAT_FREEBSD4. Also fix the Linuxolator to build without the setdomainname() routine by just making it call userland_sysctl on kern.domainname. Also replace the setdomainname()'s implementation to use this approach, because we're duplicating code with sysctl_domainname(). I wasn't able to keep these three routines working in our COMPAT_FREEBSD32, because that would require yet another keyword for syscalls.master (COMPAT4+NOPROTO). Because this routine is probably unused already, this won't be a problem in practice. If it turns out to be a problem, we'll just restore this functionality. Reviewed by: rdivacky, kib
* Fix some ifdef logic in the libc syncicache() bit that I somehow missed in thenwhitehorn2008-09-241-1/+3
| | | | last commit. Now it really can use a runtime-set cacheline size.
* Allow the cacheline size on PowerPC to be set at runtime. This is essential fornwhitehorn2008-09-241-16/+16
| | | | | supporting 64-bit CPUs, which often have 128-byte cache lines instead of the standard 32.
* Add support files for compiling with soft-float. This has beenmarcel2008-04-273-0/+448
| | | | | copied from ARM and modified to warrant the duplication. Oh, and to make it work for PowerPC :-)
* Let PowerPC world optionally build with -msoft-float. For FPU-less PowerPCraj2008-02-246-0/+12
| | | | | | | | | variations (e500 currently), this provides a gcc-level FPU emulation and is an alternative approach to the recently introduced kernel-level emulation (FPU_EMU). Approved by: cognet (mentor) MFp4: e500
* Fix build from errors exposed with recent version_gen.awk commit.grehan2007-10-181-2/+1
| | | | | Not quite sure if this is 100% correct: awaiting review. But quieten tinderbox in the meantime.
* Classify mmap, lseek, pread, pwrite, truncate, ftruncate as pseudopeter2007-07-041-4/+5
| | | | | | | | | | syscalls, unless WITHOUT_SYSCALL_COMPAT is defined. The default case will have the .c wrappers still. If you define WITHOUT_SYSCALL_COMPAT, the .c wrappers will go away and libc will make direct syscalls. After 7-stable starts, the direct syscall method will be default. Approved by: re (kensmith)
* Fix bogon in previous commit: <machine/cpu.h> is still needed.marcel2007-06-101-0/+1
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* The definition of CACHELINESIZE moved from <machine/cpu.h> tomarcel2007-06-101-1/+1
| | | | <machine/md_var.h>.
* Some libc symbol map cleanups.deischen2007-05-311-4/+0
| | | | | | | | | | | | | | | | | | | | | net: endhostdnsent is named _endhostdnsent and is private to netdb family of functions. posix1e: acl_size.c has been never compiled in, so there's no "acl_size". rpc: "getnetid" is a static function. stdtime: "gtime" is #ifdef'ed out in the source. some symbols are specific only to some architectures, e.g., ___tls_get_addr is only defined on i386. __htonl, __htons, __ntohl and __ntohs are no longer functions, they are now (internal) defines in <machine/endian.h>. Submitted by: ru
* I guess powerpc needs vfork(), add it to the symbol list.deischen2007-05-141-0/+1
| | | | Submitted by: marius
* Remove .mcount from gmon's Symbol map and add it to the appropriatedeischen2007-05-131-0/+1
| | | | | | | arch. It can be named differently depending on the arch (.mcount, _mcount). Submitted by: marius
* Use C comments since we now preprocess these files with CPP.deischen2007-04-291-9/+11
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* The distinction between quiet and signaling NaN formats isdas2007-01-031-0/+21
| | | | | machine-dependent; these files tell the latest version of gdtoa what to do.
* Instead of re-implementing hton[ls] and friends for each arch, add a new MIcognet2006-11-065-158/+0
| | | | | | | file, net/ntoh.c, which just implement them using the inline functions from <sys/endian.h>. Suggested by: bde
* Whitespace fix.marcel2006-09-021-1/+1
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