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2011-06-11ARM: detect BX availibility at build timeYann E. MORIN
The "use BX" option is now a suggestion that BX be used if available. Use a macro to detect if BX is available at build time. If so, and the user requested it be used, then use it. Otherwise, error out. Macro courtesy Khem RAJ: http://lists.uclibc.org/pipermail/uclibc/2009-April/042301.html Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> Cc: Khem Raj <raj.khem@gmail.com> Cc: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> Cc: Carmelo AMOROSO <carmelo.amoroso@st.com> Signed-off-by: Khem Raj <raj.khem@gmail.com>
2011-06-11ARM: #include <bits/arm_asm.h> where __USE_BX__ is usedYann E. MORIN
The check for __USE_BX__ will be available in bits/arm_asm.h, so the latter must be included wherever the former is used. Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> Cc: Khem Raj <raj.khem@gmail.com> Cc: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> Cc: Carmelo AMOROSO <carmelo.amoroso@st.com> Signed-off-by: Khem Raj <raj.khem@gmail.com>
2011-06-11ARM: transform the EABI/OABI choice into a booleanYann E. MORIN
The CONFIG_ARM_OABI option is never used. Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> Cc: Khem Raj <raj.khem@gmail.com> Cc: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> Cc: Carmelo AMOROSO <carmelo.amoroso@st.com> Signed-off-by: Khem Raj <raj.khem@gmail.com>
2011-06-11ARM: remove sub-arch/variants selection from menuconfigYann E. MORIN
Rely on the compiler to be correctly set up to generate appropriate code for the target variant. This exposes the Thumb option, as it is no longer auto-selected. The "Use BX" no longer depends on supported CPU to be selected, so it now defaults to 'n' as it shall work by default on CPUs that do not have BX. Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> Cc: Khem Raj <raj.khem@gmail.com> Cc: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> Cc: Carmelo AMOROSO <carmelo.amoroso@st.com> Signed-off-by: Khem Raj <raj.khem@gmail.com>
2011-06-11ARM: introduce blind options to select & force THUMB modeYann E. MORIN
Add three new blind options to set use of Thumb mode: - COMPILE_IN_THUMB_MODE - if set, CFLAGS will contain -mthumb - if unset, the compiler's default is used - HAS_THUMB - CPUS with Thumb instruction set can select this - use of BX depends on this - FORCE_THUMB - CPUs that are Thumb-only must select this - this selects: HAS_THUMB, COMPILE_IN_THUMB_MODE and USE_BX Also, remove leading space in Rules.mak. Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> Cc: Khem Raj <raj.khem@gmail.com> Cc: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> Cc: Carmelo AMOROSO <carmelo.amoroso@st.com> Signed-off-by: Khem Raj <raj.khem@gmail.com>
2011-06-11ARM: reorder "Use BX" optionYann E. MORIN
"Use BX" is not available on all CPUs, so the option depends on a correct CPU to be chosen . It is weird that e BX" then appears _above_ the CPU selection, not below. Move the "Use BX" after the CPU selection. Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> Cc: Khem Raj <raj.khem@gmail.com> Cc: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> Cc: Carmelo AMOROSO <carmelo.amoroso@st.com> Signed-off-by: Khem Raj <raj.khem@gmail.com>
2011-06-10Fix __libc_epoll_pwait compile failure on x86Phil Blundell
This prevents "memory input 7 is not directly addressable" errors. | libc/sysdeps/linux/common/epoll.c: In function '__libc_epoll_pwait': | libc/sysdeps/linux/common/epoll.c:71:80: error: memory input 7 is not directly addressable | libc/sysdeps/linux/common/epoll.c:75:86: error: memory input 7 is not directly addressable | make: *** [libc/sysdeps/linux/common/epoll.o] Error 1 | make: *** Waiting for unfinished jobs.... Signed-off-by: Phil Blundell <pb@pbcl.net> Signed-off-by: Jason Woodward <jason.woodward@timesys.com> Signed-off-by: Khem Raj <raj.khem@gmail.com>
2011-06-10nptl/Makefile.in: Fix the build break caused by UCLIBC_CTOR_DTOR enablingKhem Raj
Extra / somehow does not match the target and complains that $(top_builddir)libpthread/nptl/sysdeps/pthread/crti.o has no rules to build Signed-off-by: Khem Raj <raj.khem@gmail.com>
2011-05-31buildsys: fix pregen target (!NPTL with LOCALE)Carmelo Amoroso
When NPTL is not enabled, and LOCALE support is used, compilation fails with the following error: ------------------------------------------------------------------------- MKDIR include/bits GEN include/bits/sysnum.h make[1]: *** No rule to make target `../..//include/bits/uClibc_ctype.h', needed by `../../extra/locale/gen_wc8bit.c'. Stop. make: *** [pregen] Error 2 ------------------------------------------------------------------------- The problem is that "headers" is not listed as prerequisite of pregen. These have been changed multiple times recently: o Austin: order headers before pregen-headers 1f5c73c9f8a98b1d2a35cea868a585c97ab0e436 o Khem: pregen: Fix the parallel build problem in pregen target 046035ecde92262d96eff2192ba3cda716f04909 o Khem: pregen-headers: Add new target which depends on headers. ef18cfe8ebab25f5ef92e81956f50e2dc57df602 o Carmelo: build: Fix infinite loop when no threading support is enabled ff5e4de7088fe8d34812c2a1e604bf04be713606 In all of these commits headers was actually as prerequisite In commit 9381d622e2411a35a5fd73a5a573eb269e2dd9c9 [nptl: fix buildsys] by Bernhard, headers was removed, causing the problem reported above. Signed-off-by: Filippo Arcidiacono <filippo.arcidiacono@st.com> Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2011-05-31libubacktrace: Fix ASNEEDED emissionBernhard Reutner-Fischer
In master the variable is called SHARED_LIBNAME and not SHARED_MAJORNAME. Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-05-31NPTL: Fix CTOR_DTORBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-05-27libc: make common longjmp usable with NPTLFilippo Arcidiacono
Call _longjmp_unwind conditionally under NPTL config option, making longjmp usable with NPTL. Signed-off-by: Filippo Arcidiacono <filippo.arcidiacono@st.com> Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2011-05-27sh: use the common implementation for longjmpFilippo Arcidiacono
Signed-off-by: Filippo Arcidiacono <filippo.arcidiacono@st.com> Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2011-05-27sh: fix build in !NPTL caseFilippo Arcidiacono
Fix build issue due to missing symbols in !NPTL case: - vfork - _longjmp_unwind Signed-off-by: Filippo Arcidiacono <filippo.arcidiacono@st.com> Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2011-05-27Correct a bug when remapping textrel segments on nommuAlan Davis
From: Alan Davis <adavis@ti.com> On C6X, when trying to execute a program that has a textrel DSO, it fails to load. The telltale line in the LD_DEBUG output is: _dl_get_ready_to_run:779: file=''; needed by './a.out' The corresponding DT_NEEDED entry has 'libc.so.0', but here the filename is empty. This is what is happening in _dl_elf_shared_library(): First, map all segments according to their permissions. Text gets initially mapped read-only. Then, parse the dynamic information. The dynamic table is in RW but some of the tags may point to RO. For example, DT_NEEDED points to a string in .dynstr which is in RO. These pointers get computed according to the loadmap from the original mapping. Then, in response to a DT_TEXTREL tag, the RO segment gets remapped, thereby invaliding anything that points to it, in particular certain dynamic tags such as DT_NEEDED. The following patch re-parses the dynamic info after the remapping so as to re-compute any invalid pointers. Signed-off-by: Alan Davis <adavis@ti.com> Signed-off-by: Bernd Schmidt <bernds@codesourcery.com>
2011-05-13unwind.h: Move to libc/sysdeps from nptl sysdepsKhem Raj
Signed-off-by: Khem Raj <raj.khem@gmail.com>
2011-05-13epoll: redo cancellation to match masterBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-05-13epoll.c: add cancellation to epoll_[p]wait()Peter S. Mazinger
While there, fix epoll_pwait syscall, it takes 6 arguments Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-05-12libm: fix building out-of-treeBernhard Reutner-Fischer
Thanks to Thierry Reding for noticing! Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-05-12wordexp: fix mishandled return value of pipe callBernhard Reutner-Fischer
and use pipe2 if available while at it. Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-05-12linux_specific: handle accept4 and pipe2Bernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-05-12NPTL: needs madvise internallyBernhard Reutner-Fischer
This fixes 8d09a50a044638fde2ed3e1a1c4d3c7c5a3cce5c since NPTL also uses madvise internally. Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-05-12socket: fix stubsBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-05-11commentary typo fixBernhard Reutner-Fischer
s/decriptor/descriptor/ Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-05-11epoll: unify epoll.hBernhard Reutner-Fischer
2011-05-11commentary typo fixBernhard Reutner-Fischer
use cancellation (with two 'l') uniformly. Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-05-11Implement epoll_create1 and epoll_pwait system calls.Thierry Reding
Note: TODO: This lacks cancellation support. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-05-11buildsys: document UCLIBC_EXTRA_CPPFLAGSBernhard Reutner-Fischer
Rename EXTRA_CPPFLAGS to UCLIBC_EXTRA_CPPFLAGS and make them override previous flags (by appending - not prepending - them to the other flags).
2011-05-11lll: avoid shadow warningsBernhard Reutner-Fischer
use __ret uniformly to avoid shadow warnings as seen on x86_64. Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-05-11x86_64: add TODO for R_X86_64_RELATIVEBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-05-11libubacktrace: mv unwind.h to includeBernhard Reutner-Fischer
Fixes compilation if NPTL is off. I hope this doesn't break ARM EABI but cannot check ATM. Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-05-11Revert "libubacktrace: fix config-symbol handling"Bernhard Reutner-Fischer
This reverts commit 7a080cd149c7b25d415d76506510d55b34819fc2. This symbol is in fact different (as it is set no 'n').
2011-05-11add pipe2()Bernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-05-11socketcalls: add stubsBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-05-11accept4: Implement cancellationBernhard Reutner-Fischer
.. and add proper prototype, move it into it's own obj and other such cleanups. Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-05-11Implement accept4 system call.Thierry Reding
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-05-11libubacktrace: fix config-symbol handlingBernhard Reutner-Fischer
Config symbals that are not set are empty, not 'n'.
2011-05-11buildsys: Turn on strict aliasing for everyoneBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-05-10ldso: commentary typo fixBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-05-10getcwd: Fix memory-leak in error pathBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-05-10__uc_malloc: Fix memory-leak in error pathBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-05-10libdl: fix local symbol's address handling in dladdrFilippo Arcidiacono
Fix dladdr to correctly handle local function's address so backtrace_symbols print only the function address for these function, instead of showing the name of nearest one. Indeed the dladdr walk through the hash table to find the nearest symbol, that doesn't contain local symbols. Signed-off-by: Filippo Arcidiacono <filippo.arcidiacono@st.com> Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2011-05-10*/crtn.S: Remove .size directive for _init and _finiBernhard Reutner-Fischer
These are split across objects so setting size does not (and never did) work since the expression cannot be computed at assembly time. This avoids errors from recent (> 2.21) gas. Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-05-07posix_fadvise64: fix x86 implementationTimo Teräs
Commit 73d59554144f429b1cf0d4d7fa7de42bdf59ad92 completely broke the x86 implementation of posix_fadvise64. It moved the first the assembly code retn instruction gets missing depending on the Technically the file has two implementaions for posix_fadvise64, one when __NR_fadvise64_64 is available, and second one if only __NR_fadvise64 is there. Fix the #ifdef's to be proper for that. Signed-off-by: Timo Teräs <timo.teras@iki.fi> Signed-off-by: Khem Raj <raj.khem@gmail.com>
2011-05-05i386: fix .size of _init/_finiBernhard Reutner-Fischer
binutils-2.21 barf on .size that do not evaluate to const, so use the section size and not a function that is not visible here. Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-05-05x86_64: fix .size of _init/_finiBernhard Reutner-Fischer
binutils-2.21 barf on .size that do not evaluate to const, so use the section size and not a function that is not visible here. Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-05-05Revert "*/crt?.S: remove .size directives"Bernhard Reutner-Fischer
Removing them generally was not a good idea This reverts commit 233c504cd940d9802226b6a3a092368b86978f5e.
2011-05-04*/crt?.S: remove .size directivesBernhard Reutner-Fischer
sed -i -e '/\.size[[:space:]]/d' $(grep -l "\.size" libc/sysdeps/linux/*/crt*.[sSc]) Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-05-04libubacktrace: fix backtrace support on arm-eabi, which needs libgcc_eh ↵Henning Heinold
linked too Signed-off-by: Henning Heinold <heinold@inf.fu-berlin.de> Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2011-05-03getaddrinfo.c: fix incorrect check for ERANGE from gethostbyaddr_rDenys Vlasenko
Also, freeaddrinfo(NULL) is ok, no need to check parameted for NULL before calling it. Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
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