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2016-03-31arm: simplify handling of Thumb related optionsThomas Petazzoni
Currently, the Thumb support on ARM has three related Config.in options, which are not trivial for users to understand, and are in fact not needed: - The USE_BX option is not needed: knowing whether BX is available or not is easy. If you have an ARM > v4 or ARMv4T, then BX is available, otherwise it's not. This is the logic used in glibc. - The USE_LDREXSTREX option is not needed: whenever Thumb2 is available, ldrex/strex are available, so we can simply rely on __thumb2__ to determine whether ldrex/strex should be used, without requiring a Config.in option. - Once USE_BX and USE_LDREXSTREX are removed, the only thing left that COMPILE_IN_THUMB does is to set -mthumb. This makes the option unnecessary, as on ARM at least, the user is already supposed to pass -march=<foo> or other compiler options tuning the library for a specific ARM variant. There is no reason to do otherwise for Thumb, which allows to get rid of the COMPILE_IN_THUMB option. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2016-02-29arm: fix __JMP_BUF_SP definitionMax Filippov
__JMP_BUF_SP is the index of a stack pointer slot in the __jmp_buf. According to ARM __sigsetjmp code it does not depend on configuration parameter __UCLIBC_HAS_FPU__. Make its definition unconditional. __JMP_BUF_SP is used in the unwind_stop through the _JMPBUF_CFA_UNWINDS_ADJ macro, this change fixes cleanup routines call on thread cancellation in configurations with hard FP. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2015-12-07add definitions for O_PATHWaldemar Brodkorb
Only alpha, hppa and sparc need non-default value.
2015-12-05remove __UCLIBC_ASM_GLOBAL_DIRECTIVE__Waldemar Brodkorb
.globl can be used for every architecture so remove the define. Sync with GNU C library.
2015-12-05remove __UCLIBC_HAVE_ASM_GLOBAL_DOT_NAME__Waldemar Brodkorb
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.
2015-04-24merge uClibc changesWaldemar Brodkorb
2015-04-22arm: Add BX and BXC macrosBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-04-22arm: Fix POP_RET for armv4t && interworkingBernhard Reutner-Fischer
It seems the condition was reversed which lead to e.g. arm-920t being confused Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-04-15merge uClibc masterWaldemar Brodkorb
2015-04-14arm: thumb1: Fix conflicting types for _v3Bernhard Reutner-Fischer
In file included from ./include/sys/syscall.h:33:0, from libc/sysdeps/linux/common/sync_file_range.c:10: libc/sysdeps/linux/common/sync_file_range.c: In function '__sync_file_range_nocancel': ./include/bits/syscalls.h:144:16: error: conflicting types for '_v3' register int _v3 __asm__ ("v3") = _v3tmp; ^ ./libc/sysdeps/linux/arm/sysdep.h:281:7: note: in expansion of macro 'LOAD_ARGS_7' LOAD_ARGS_##nr (args) \ ^ ./libc/sysdeps/linux/arm/sysdep.h:324:2: note: in expansion of macro 'INTERNAL_SYSCALL_RAW' INTERNAL_SYSCALL_RAW(SYS_ify(name), err, nr, args) ^ ./libc/sysdeps/linux/arm/sysdep.h:256:40: note: in expansion of macro 'INTERNAL_SYSCALL' ({ unsigned int _inline_sys_result = INTERNAL_SYSCALL (name, , nr, args); \ ^ libc/sysdeps/linux/common/sync_file_range.c:32:9: note: in expansion of macro 'INLINE_SYSCALL' return INLINE_SYSCALL(sync_file_range, 7, fd, 0, ^ In file included from ./libpthread/nptl/sysdeps/unix/sysv/linux/arm/sysdep-cancel.h:18:0, from ./include/cancel.h:58, from libc/sysdeps/linux/common/sync_file_range.c:15: ./libc/sysdeps/linux/arm/sysdep.h:280:21: note: previous definition of '_v3' was here register int *_v3 __asm__ ("v3") = _sys_buf; \ ... Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-03-29merge uClibc git masterWaldemar Brodkorb
2015-03-22nptl/arm: Move aeabi_read_tp to uclibc_nonshared.aKhem Raj
Otherwise it creates wrong references from shared libs Signed-off-by: Khem Raj <raj.khem@gmail.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-03-08fix regression for ARM thumb modeWaldemar Brodkorb
Sync with GNU libc, see here why r7 is not usable for thumb mode: https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/arm/sysdep.h;h=37eac192b1e2e7f53f112b16450b9ce57054e27f;hb=HEAD Remove old OABI support. Fixes build breakage for ARM noMMU builds. Still no runtime testing.
2015-02-12unbreak support for ARM no MMU caseWaldemar Brodkorb
As suggested on the uCLibc mailing list: http://lists.uclibc.org/pipermail/uclibc/2014-November/048702.html http://lists.uclibc.org/pipermail/uclibc/2014-November/048703.html http://lists.uclibc.org/pipermail/uclibc/2014-November/048704.html
2014-12-06arm: add RESET_PID in the clone implWang Yufen
Called getpid() When creating a new process with clone(), getpid() returns the father_process's value. It should be child_process's value. The reason is missing a RESET_PID in the arm clone impl. Signed-off-by: Wang Yufen <wangyufen@huawei.com> Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
2014-08-25fcntl.h: Define F_SETPIPE_SZ and F_GETPIPE_SZKhem Raj
Signed-off-by: Khem Raj <raj.khem@gmail.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-06-12arm: move check for BX to its own headerYann E. MORIN
As Will noticed, the header this check is currently done in is asm-only, and is not meant to be included from C code. This breaks compilation when compiled for a Thumb2-aware CPU. Move the BX check to its own header, and revert 7a246fd. Reported-by: Will Newton <will.newton@gmail.com> Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr> Cc: Will Newton <will.newton@gmail.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-06-12arm/clone.S: Add missing IT instruction for Thumb2.Will Newton
The conditional load needs to be made part of an IT block on Thumb2 cores. Signed-off-by: Will Newton <will.newton@linaro.org> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-01-15libc: add guard for arm thumb2 asmBernhard Reutner-Fischer
Fixes gen_lowlevelrobustlock on thumb2 Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-12-20libc/sysdeps: commonize ret_ERRVALBaruch Siach
* Add a common ret_ERRVAL definition * Remove ret_ERRVAL from architectures using the common 'ret' * Add 'undef' to architectures that need a different return instruction * Add '#include <common/sysdep.h>' to cris and ia64 that were missing it Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-04-01linux: posix_fadvise: use new SYSCALL_ALIGN_64BITMike Frysinger
Now that we have a new SYSCALL_ALIGN_64BIT define for tracking the 64bit register shift behavior, use it. This allows us to delete duplicated arm/xtensa files, as well as drop a few arch ifdefs from common code. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2013-04-01libc: rename TRUNCATE64_HAS_4_ARGS to SYSCALL_ALIGN_64BITMike Frysinger
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>
2013-03-14libc: switch several users to unlikely()Bernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-02-11libc/{arm, i386}/Makefile.arch: Don't build 64-bit code if LFS is disabledMarkos Chandras
Fixes the following compilation error: _lfs_64.h: # error Do not include this header in files not built when LFS is disabled Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-01-10buildsys: use kbuild styleBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-01-10libc: add {get,set,swap,make}context user context manipulation functionsFlorian Fainelli
Add the obsolescent SUSv3 family of user context manipulating functions for arm, i386, mips, x86_64. Signed-off-by: Timon ter Braak <timonterbraak@gmail.com> Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> Signed-off-by: Natanael Copa <ncopa@alpinelinux.org> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-12-11arm: clone: restore stack pointer just after return from syscallFilippo Arcidiacono
If the syscall returns with an error the stack pointer and r4 register are not restored because the instruction 'ldmnefd sp!, {r4}' is executed after branching to '__error' label. This bug has been spotted out by running './utstest clone 5' from LTP built with -fstack-protector-all compiler flag as log below: root@cortex-a9:/usr/tests/ltp/testcases/bin# ./utstest clone 5 stack smashing detected: ./utstest terminated() Regression introduced by commit e58798e107d652644629a1daaa95d76430808d53 Signed-off-by: Filippo Arcidiacono <filippo.arcidiacono@st.com> Signed-off-by: Giuseppe Di Giore <giuseppe.di-giore@st.com> Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2012-11-18Replace FSF snail mail address with URLsMike Frysinger
This matches a similar change made to glibc. No functional changes here. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-10-02libc/sysdeps: add __kernel_long and __kernel_ulongChris Packham
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>
2012-06-15vfork: make all archs consistentPeter S. Mazinger
__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>
2012-06-15*64.[cS]: use _lfs_64.h instead of features.h and remove LFS guardPeter S. Mazinger
_lfs_64.h makes the compile fail, if LFS is not enabled, no need for the guard. Reorganize to include only the minimal necessary headers. Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-06-15posix_fadvise: make posix_fadvise[64] similar on all archsPeter S. Mazinger
Remove all versions, that can be covered by the common one. Drop incorrectly implemented fallback support, if __NR_fadvise64_64 is not available. To support 64 bit ppc, move ppc support into common. Cleanup including headers. Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-06-15arm: avoid 2 compiler warningsPeter S. Mazinger
Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-06-15mmap.c: provide a common mmap.c that is good for most of archsPeter S. Mazinger
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>
2012-06-15remove libc_hidden_proto(ioperm) from all headers except armPeter S. Mazinger
While there, guard everywhere ioperm and iopl prototypes with __UCLIBC_LINUX_SPECIFIC__ Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-06-15cleanup bits/setjmp.h of stuff moved to jmpbuf-offsets.h and jmpbuf-unwind.hPeter S. Mazinger
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>
2012-06-15make use of jmpbuf-offsets.h and jmpbuf-unwind.hPeter S. Mazinger
Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-06-15jmpbuf-unwind.h: add NTPL related sectionPeter S. Mazinger
Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-06-15add jmpbuf-offsets.h and jmpbuf-unwind.h for all archs (LT related)Peter S. Mazinger
Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-06-15arm: consistency check OABI v. EABIPeter S. Mazinger
added check in toolchain and config Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-06-15signal.h: provide prototype for __libc_sigaction and remove all othersPeter S. Mazinger
Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-04-26arm: use PATH_MEM in ioperm()Bernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-03-26Revert "Fix redefinition of ioperm and iopl in stubs.c and ↵Mike Frysinger
arm/{ioperm.c,iopl.c}" This reverts commit 3bcd031f97d61a8f732d865a0f4248aed2d191ab. The arm code is supposed to provide its own userspace ioperm/iopl functions. They've never had system calls for these funcs. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-03-26Fix redefinition of ioperm and iopl in stubs.c and arm/{ioperm.c,iopl.c}Jason Woodward
This fixes the following link failure: LD libuClibc-0.9.33.so libc/libc_so.a(stubs.os): In function `sync_file_range': stubs.c:(.text+0x0): multiple definition of `ioperm' libc/libc_so.a(ioperm.os):ioperm.c:(.text+0x260): first defined here libc/libc_so.a(stubs.os): In function `sync_file_range': stubs.c:(.text+0x0): multiple definition of `iopl' libc/libc_so.a(iopl.os):iopl.c:(.text+0x0): first defined here collect2: ld returned 1 exit status make[1]: *** [lib/libc.so] Error 1 Signed-off-by: Jason Woodward <jason.woodward@timesys.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-02-13arm: Do not use 'sed -r' to calculate IS_EABIKhem Raj
-r is not available on BSD sed so to keep compatibility avoid using it. Signed-off-by: Khem Raj <raj.khem@gmail.com>
2012-01-29tmpnam, tempnam are obsolete in SUSV4Bernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-01-28*: if !HAS_THREADS strong alias sigactionBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-01-28buildsys: fixup sigaction handlingBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-01-27libc_arm: avoid multiple version of __aeabi_unwind_cpp_pr dummy codeCarmelo Amoroso
Do not pollute libraries with its own implementation of __aeabi_unwind_cpp_pr1 code. Just add it to uclibc_nonshared.a archive and share it. This fixes build issue with static linking of application due to multiple symbol definition in libgcc_eh-a and libpthread.a or librt.a Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2012-01-26*: silence some warningsBernhard Reutner-Fischer
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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