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2017-04-01ldso: don't discard sysmbols for DODEBUG buildsVineet Gupta
the --discard-* toggles take away the symbols which comes in the way when staring at objdumps for debugging low level issues So don't discard symbols for DODEBUG builds before ----- 3388: j_s.d [blink] 338a: add_s sp,sp,0x18 338c: b.d 332c <_dl_add_elf_hash_table+0x50> 3390: mov_s r2,0 3392: nop_s 3394: push_s blink <--- function not called out 3396: st.aw r13,[sp,-20] 339a: std r14r15,[sp,4] 339e: std r16r17,[sp,12] after ----- 3388: j_s.d [blink] 338a: add_s sp,sp,0x18 338c: b.d 332c <_dl_add_elf_hash_table+0x50> 3390: mov_s r2,0 3392: nop_s 00003394 <add_ldso.isra.9>: 3394: push_s blink 3396: st.aw r13,[sp,-20] 339a: std r14r15,[sp,4] 339e: std r16r17,[sp,12] Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2017-03-17Search the configured multilibAlexey Neyman
... before falling back to ld.so installation path (it is not the same - gcc uses /lib/ld-uClibc-x86-64.so.0 for uClibc) or default /lib:/usr/lib. This matches glibc behavior (see trusted-dirs.h generated during glibc build). Signed-off-by: Alexey Neyman <stilor@att.net>
2016-08-25mips: add NaN supportWaldemar Brodkorb
2016-05-28ldso: Force disable -mlong-calls when compiling ldso for ARCAlexey Brodkin
Even though by default for ARC uClibc gets compiled with disabled long-calls user may provide UCLIBC_EXTRA_CFLAGS with "-mlong-calls". With this option uClibc will be successfully compiled but later it will fail in runtime because dynamic loader cannot deal with relocations at least very early on its start. In particular it will be seen as call to non-relocated symbol _dl_parse_dynamic_info() which ends-up as a segfault like this: ------------------------>8-------------------- potentially unexpected fatal signal 11. Path: /bin/test CPU: 0 PID: 63 Comm: test Not tainted 4.5.2 #7 task: 9f13f180 ti: 9f166000 task.ti: 9f166000 [ECR ]: 0x00040000 => Insn could not be fetched [EFA ]: 0x0000283c [BLINK ]: 0x2000407c [ERET ]: 0x283c @No matching VMA found [STAT32]: 0x8008009e : IE U BTA: 0x0000283c SP: 0x5fef5ccc FP: 0x00000000 LPS: 0x20004080 LPE: 0x20004064 LPC: 0x00000000 r00: 0x20006684 r01: 0x5fef5db0 r02: 0x00000000 r03: 0x20000000 r04: 0x80808080 r05: 0x2f2f2f2f r06: 0x41464d00 r07: 0x00000080 r08: 0x000000dd r09: 0x00000000 r10: 0x00000073 r11: 0x80808080 r12: 0x2000407c r13: 0x20000000 r14: 0x5fef5e74 r15: 0x000ceb3c r16: 0x5fef5e7c r17: 0x5fef5d44 r18: 0x000ceb0c r19: 0xffffffff r20: 0x000ceb1c r21: 0x00000000 r22: 0x00000000 r23: 0x000d08a5 r24: 0x00000000 r25: 0x80808080 Segmentation fault ------------------------>8-------------------- Solution to this issue is simple we make sure dynamic loader never gets compiled with "-mlong-calls" by forcing "-mno-long-calls" on it. Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Anton Kolesov <akolesov@synopsys.com> Cc: linux-snps-arc@lists.infradead.org
2016-02-21arm: allow to build with DODEBUG=yWaldemar Brodkorb
Avoids following linking error: /usr/lib/gcc/arm-openadk-linux-uclibceabihf/5.3.0/libgcc.a(unwind-arm.o): In function `unwind_phase2': ../w-gcc-5.3.0-1/gcc-5.3.0/libgcc/unwind-arm-common.inc:289: undefined reference to `abort' /usr/lib/gcc/arm-openadk-linux-uclibceabihf/5.3.0/libgcc.a(unwind-arm.o): In function `unwind_phase2_forced': ../w-gcc-5.3.0-1/gcc-5.3.0/libgcc/unwind-arm-common.inc:346: undefined reference to `memcpy' collect2: error: ld returned 1 exit status
2015-11-23xtensa: remove ldso workaround by real pointer checkWaldemar Brodkorb
An abort() is only generated when gcc does not implement a trap handler for the target architecture. This fixes the abort() generation. Latest gcc git master also contains a trap handler for xtensa. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Walemar Brodkorb <wbx@uclibc-ng.org>
2015-08-22ldso: install backward compatibility symlink by defaultWaldemar Brodkorb
Simplify the switch from uClibc to uClibc-ng suggested by Alexey Brodkin <Alexey.Brodkin@synopsys.com>. Gcc always uses .0 ld.so link, so install it by default.
2015-08-19Revert "ldso: install backward compatibility symlink by default"Waldemar Brodkorb
This reverts commit f52fb21a7af0aa4e983b3e6c2ddd1b6a526b5169. Totally wrong patch.
2015-08-15ldso: install backward compatibility symlink by defaultWaldemar Brodkorb
Simplify the switch from uClibc to uClibc-ng suggested by Alexey Brodkin <Alexey.Brodkin@synopsys.com>. Gcc always uses .0 ld.so link, so install it by default.
2015-04-15merge uClibc masterWaldemar Brodkorb
2015-04-14prelink: handle _begin in a gold-agnostic wayBernhard Reutner-Fischer
The nostartfiles is redundant but better be safe Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-04-13still required for xtensaWaldemar Brodkorb
2015-04-13Revert "gcc 4.9.x produces some calls to abort()"Waldemar Brodkorb
This reverts commit 69ba9dcaa13bb8bbdc8630265d73298c39945416.
2015-04-13buildsys: Do not build crt upon pregenBernhard Reutner-Fischer
No need to build crt when just generating headers Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-03-31buildsys: Do not build crt upon pregenBernhard Reutner-Fischer
No need to build crt when just generating headers Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2015-02-20gcc 4.9.x produces some calls to abort()Waldemar Brodkorb
For sh4/xtensa architectures there is an optimization bug, which does not allow to compile ld.so with gcc 4.9.2. Disable this optimization for sh4/xtensa and ld.so compile.
2014-09-16buildsys: fix IS_IN_lib*Bernhard Reutner-Fischer
define NOT_IN_libc / IS_IN_libxxx appropriately to fix pthread_once Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2014-07-22ARC: ldso: Dont force frame pointer as it useless for unwinding on ARCVineet Gupta
Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-03-07buildsys: Add missing $(SYMBOL_PREFIX) to symbol namesMarkos Chandras
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-01-14buildsys: cache build flags in varsMike Frysinger
Running `make clean` atm takes like 20 seconds because every subdir re-evaluates all the toolchain flags. Add some helpers to automate the process of setting up variables to cache the result of tests, as well as the checking of an already set flag. Now `make clean` takes like 2 seconds on my system. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-04-06Merge remote-tracking branch 'origin/master' into prelinkCarmelo Amoroso
* origin/master: (137 commits) utils/ldd: Check for returned pointer from strrchr not the value it holds cris: add provide arch-specific vfork implementation lutimes.c, stubs.c: fix compiling lutimes, if __NR_utimensat is not defined bump version to 0.9.32-rc3-git release 0.9.32-rc3 memalign: include sys/param.h for MAX arm/bits/atomic.h: Include common/bit/atomic.h for thumb1 wctype.h: fix libc_hidden_proto for iswupper and add it for iswspace add libc_hidden_proto for wcs[n]casecmp_l really fix missing __libc_drand48_data Revert "missing prototype of __libc_drand48_data fixed" missing prototype of __libc_drand48_data fixed time.c, time.h: remove unused hidden strftime/strptime nanosleep.c: remove duplicated libc_hidden_proto ctype.c, ctype.h: remove commented parts that were banned for removal after 0.9.31 _wctype.c, wctype.h: remove unused isw* and wctype_l hidden functions time.c, wchar.h: remove unused hidden wcsftime str[n]casecmp.c: fix hidden usage remove unused hidden functions frv/memset.S: add missing libc_hidden_def ... Conflicts: ldso/ldso/ldso.c Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2011-03-05Add Makefile support for DSBT ELF.Bernd Schmidt bernds_cb1@t-online.de
This adds support for a new binary format, DSBT ELF, to the Makefiles. Every shared library is assigned a DSBT index, and the link.so macro is adjusted to ensure the correct linker argument is passed. Configuration and ldso support will follow in separate commits. Signed-off-by: Bernd Schmidt <bernds@codesourcery.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2010-09-17ldso: Add runtime prelink supportFilippo Arcidiacono
Added runtime prelink support to be able to run a prelinked application; at process startup only the conflicts will be relocated. This speed up the startup time. Signed-off-by: Filippo Arcidiacono <filippo.arcidiacono@st.com> Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2010-04-22nptl: proper soname handlingNatanael Copa
Since sublevel releases are not ABI compatible we need to adjust the soname to include the sublevel version. This makes it possible to install ABI incompatible versions of the library side by side so clean upgrades are possible. Signed-off-by: Natanael Copa <natanael.copa@gmail.com> Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
2010-03-25prettify make cleanBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2009-10-09check_ld some more flagsBernhard Reutner-Fischer
gold does not currently implement these. Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2009-09-26ldso/: tls support for dynamic linkerAustin Foxley
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
2009-08-17support building out-of-treeBernhard Reutner-Fischer
Handle O= Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2008-11-07- less verbose make cleanBernhard Reutner-Fischer
2008-06-17- move stripping into do_ar resp compile-m for the sake of simplicityBernhard Reutner-Fischer
2008-06-04- strip the targets and not prerequisitesBernhard Reutner-Fischer
- tidy up PTHREADS_DEBUG_SUPPORT by using per-target STRIP_FLAGS for the few This fixes the spurious rebuilds bernd and vda were seeing with libpthreads.
2008-05-30- fix dependencies of ldso.cBernhard Reutner-Fischer
Previously a touch ldso/ldso/dl-debug.c && make ldso/ldso/ldso.oS did nothing
2007-10-13- use the compiler-driver instead of the linkerBernhard Reutner-Fischer
- adjust setting flags accordingly to use (hardcoded, see below) -Wl, Potential improvements: *) --warn-unresolved-symbols should perhaps be used for all libs *) eventually rename LDFLAGS to CC_LDFLAGS *) probe for compiler driver's notion of flag to use for passing in linker flags (i.e. don't hardcode "-Wl,")
2007-03-19#1273 if EXTRAVERSION is set, make sure we respect itMike Frysinger
2006-03-02clean out arch subdirs as wellMike Frysinger
2006-02-18just let user decide CFLAGS instead of assuming stuff for himMike Frysinger
2006-02-18these defines are created for use in features.h so no point in duplicating ↵Mike Frysinger
work in the build system
2006-02-18make sure ldso is rebuilt if source files are updatedMike Frysinger
2006-01-22Enable _GNU_SOURCE build wide, trying to get consistent interfaces, else IMA ↵Peter S. Mazinger
is a useless attempt
2006-01-13fix up ability to rename ldsoMike Frysinger
2005-12-14 remove .oS tooMike Frysinger
2005-11-28Added .oS asm targets and make ldso build w/ -DSHARED (needed by nptl)Peter S. Mazinger
2005-11-22Depedencies corrected (less make oldconfig/headers), rerunning make remakes ↵Peter S. Mazinger
only headers
2005-11-22remove headers_done since it broke buildroot againMike Frysinger
2005-11-21Do not create any files (dl-progname.h) in ldso anymorePeter S. Mazinger
2005-11-21Do not create header links, use -I to find them. Moved dl-progname.h to ↵Peter S. Mazinger
ldso/ldso, that will exist if top_srcdir != top_builddir.
2005-11-20fix up ifdef checks so dl_iterate_phdr is defined in all the proper objectsMike Frysinger
2005-11-18make -j2 works herePeter S. Mazinger
2005-11-18Add info to CFLAGS about lib we are buildingPeter S. Mazinger
2005-11-17Include all lib*/Makefile.in in top_srcdir/Makefile.in, allows adding ↵Peter S. Mazinger
foreign objects to a lib
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