- devel - example.com

Unwinding info for cancellable syscalls
by Max Filippov 14 Sep '15

14 Sep '15

Hello, I've noticed that several NPTL tst-cancelx* tests fail on ARM, because functions invoking cancellable syscalls are compiled without -fasynchronous-unwind-tables making it impossible for the libgcc DWARF unwinder to unwind stack past the syscall and call the cleanup routine. They work on x86_64, because x86_64 gcc has -fasynchronous-unwind-tables enabled by default, and on xtensa because it uses custom unwinding code. I haven't checked, but AFAIU it should fail on other architectures that use DWARF unwinder. Can anybody confirm that? I guess that at least all functions that invoke cancellable syscalls need to be built with -fasynchronous-unwind-tables in their CFLAGS. I've tried that with couple of functions and it fixes corresponding tests. And that's what glibc does in nptl/Makefile. Does that sound right for uClibc? -- Thanks. -- Max

2 1

uClibc-ng - small C library for embedded systems branch 1.0 updated. v1.0.6-3-g5a167e3
by wbx＠helium.waldemar-brodkorb.de 11 Sep '15

11 Sep '15

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "uClibc-ng - small C library for embedded systems". The branch, 1.0 has been updated via 5a167e319ca2bee566d330d1c901d76dc53deea7 (commit) from 090e6baca19f4209a23fb05d9928f51a67c3d5af (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit 5a167e319ca2bee566d330d1c901d76dc53deea7 Author: Waldemar Brodkorb <wbx(a)uclibc-ng.org> Date: Fri Sep 11 13:34:14 2015 +0200 Revert "tgmath.h: disable builtins" This reverts commit d1671548b968103f4df1b80659e60ae1fc5a67b3. You get following errors while compiling freeswitch: awgn.c: In function 'awgn_init_dbov': awgn.c:110:5: error: void value not ignored as it ought to be s->rms = pow(10.0, level/20.0)*32768.0; Reverting this commit allows to build the code. ----------------------------------------------------------------------- Summary of changes: include/tgmath.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/tgmath.h b/include/tgmath.h index ce20d42..1dc3595 100644 --- a/include/tgmath.h +++ b/include/tgmath.h @@ -47,7 +47,7 @@ /* 1 if 'type' is a floating type, 0 if 'type' is an integer type. Allows for _Bool. Expands to an integer constant expression. */ -# if 0 /* __GNUC_PREREQ (3, 1) */ +# if __GNUC_PREREQ (3, 1) # define __floating_type(type) \ (__builtin_classify_type ((type) 0) == 8 \ || (__builtin_classify_type ((type) 0) == 9 \ hooks/post-receive -- uClibc-ng - small C library for embedded systems

1 0

uClibc-ng - small C library for embedded systems branch master updated. e346b11a82b8f4851306b25e31a25b2dad532ea8
by wbx＠helium.waldemar-brodkorb.de 11 Sep '15

11 Sep '15

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "uClibc-ng - small C library for embedded systems". The branch, master has been updated via e346b11a82b8f4851306b25e31a25b2dad532ea8 (commit) from aaab37cb397b77fa83eccd338da7b5ebab2dc49d (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit e346b11a82b8f4851306b25e31a25b2dad532ea8 Author: Waldemar Brodkorb <wbx(a)uclibc-ng.org> Date: Fri Sep 11 13:34:14 2015 +0200 Revert "tgmath.h: disable builtins" This reverts commit d1671548b968103f4df1b80659e60ae1fc5a67b3. You get following errors while compiling freeswitch: awgn.c: In function 'awgn_init_dbov': awgn.c:110:5: error: void value not ignored as it ought to be s->rms = pow(10.0, level/20.0)*32768.0; Reverting this commit allows to build the code. ----------------------------------------------------------------------- Summary of changes: include/tgmath.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/tgmath.h b/include/tgmath.h index ce20d42..1dc3595 100644 --- a/include/tgmath.h +++ b/include/tgmath.h @@ -47,7 +47,7 @@ /* 1 if 'type' is a floating type, 0 if 'type' is an integer type. Allows for _Bool. Expands to an integer constant expression. */ -# if 0 /* __GNUC_PREREQ (3, 1) */ +# if __GNUC_PREREQ (3, 1) # define __floating_type(type) \ (__builtin_classify_type ((type) 0) == 8 \ || (__builtin_classify_type ((type) 0) == 9 \ hooks/post-receive -- uClibc-ng - small C library for embedded systems

1 0

uClibc-ng - small C library for embedded systems branch master updated. aaab37cb397b77fa83eccd338da7b5ebab2dc49d
by wbx＠helium.waldemar-brodkorb.de 30 Aug '15

30 Aug '15

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "uClibc-ng - small C library for embedded systems". The branch, master has been updated via aaab37cb397b77fa83eccd338da7b5ebab2dc49d (commit) from ad2f07f5bef8a891ddc54c5d9e98d2aca0deffde (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit aaab37cb397b77fa83eccd338da7b5ebab2dc49d Author: Waldemar Brodkorb <wbx(a)openadk.org> Date: Sun Aug 30 06:50:59 2015 +0200 tst-mkostemps: fix test case on read-only root filesystem Better use /tmp as embedded systems might have a read-only root. Fix two wrong asserts. ----------------------------------------------------------------------- Summary of changes: test/misc/tst-mkostemps.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/test/misc/tst-mkostemps.c b/test/misc/tst-mkostemps.c index 2f45bfd..272e747 100644 --- a/test/misc/tst-mkostemps.c +++ b/test/misc/tst-mkostemps.c @@ -33,7 +33,7 @@ main (int argc, char *argv[]) struct stat sb_f2; /* mkstemp test */ - sprintf(name, "%s-uClibc-test.XXXXXX", __FILE__); + sprintf(name, "/tmp/%s-uClibc-test.XXXXXX", __FILE__); fd = mkstemp(name); @@ -49,7 +49,7 @@ main (int argc, char *argv[]) unlink (name); /* mkstemps test */ - sprintf(name_suffix, "%s-uClibc-test.XXXXXX.txt", __FILE__); + sprintf(name_suffix, "/tmp/%s-uClibc-test.XXXXXX.txt", __FILE__); fd = mkstemps(name_suffix, 4); @@ -65,7 +65,7 @@ main (int argc, char *argv[]) unlink (name_suffix); /* mkostemp test */ - sprintf(name, "%s-uClibc-test.XXXXXX", __FILE__); + sprintf(name, "/tmp/%s-uClibc-test.XXXXXX", __FILE__); fd = mkostemp(name, flags); @@ -82,14 +82,14 @@ main (int argc, char *argv[]) unlink (name); /* mkostemps test */ - sprintf(name_suffix, "%s-uClibc-test.XXXXXX.txt", __FILE__); + sprintf(name_suffix, "/tmp/%s-uClibc-test.XXXXXX.txt", __FILE__); fd = mkostemps(name_suffix, 4, flags); fstat(fd, &sb_f1); assert ((sb_f1.st_mode & S_IFMT) == S_IFREG) - stat(name, &sb_f2); + stat(name_suffix, &sb_f2); assert ((sb_f2.st_mode & S_IFMT) == S_IFREG) assert (sb_f1.st_ino == sb_f2.st_ino) @@ -99,14 +99,14 @@ main (int argc, char *argv[]) unlink (name_suffix); /* suffixlen = 0 */ - sprintf(name_suffix, "%s-uClibc-test.XXXXXX", __FILE__); + sprintf(name_suffix, "/tmp/%s-uClibc-test.XXXXXX", __FILE__); fd = mkostemps(name_suffix, 0, flags); fstat(fd, &sb_f1); assert ((sb_f1.st_mode & S_IFMT) == S_IFREG) - stat(name, &sb_f2); + stat(name_suffix, &sb_f2); assert ((sb_f2.st_mode & S_IFMT) == S_IFREG) assert (sb_f1.st_ino == sb_f2.st_ino) @@ -126,7 +126,7 @@ main (int argc, char *argv[]) assert(errno == EINVAL); /* suffixlen < 0 */ - sprintf(name_suffix, "%s-uClibc-test.XXXXXX.txt", __FILE__); + sprintf(name_suffix, "/tmp/%s-uClibc-test.XXXXXX.txt", __FILE__); fd = mkostemps(name_suffix, -1, flags); @@ -134,7 +134,7 @@ main (int argc, char *argv[]) assert(errno == EINVAL); /* Missing one X */ - sprintf(name_suffix, "%s-uClibc-test.XXXXX.txt", __FILE__); + sprintf(name_suffix, "/tmp/%s-uClibc-test.XXXXX.txt", __FILE__); fd = mkostemps(name_suffix, 4, flags); @@ -142,7 +142,7 @@ main (int argc, char *argv[]) assert(errno == EINVAL); /* wrong suffixlen */ - sprintf(name_suffix, "%s-uClibc-test.XXXXXX.txt", __FILE__); + sprintf(name_suffix, "/tmp/%s-uClibc-test.XXXXXX.txt", __FILE__); fd = mkostemps(name_suffix, 2, flags); hooks/post-receive -- uClibc-ng - small C library for embedded systems

1 0

uClibc-ng - small C library for embedded systems branch 1.0 updated. v1.0.6-2-g090e6ba
by wbx＠helium.waldemar-brodkorb.de 30 Aug '15

30 Aug '15

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "uClibc-ng - small C library for embedded systems". The branch, 1.0 has been updated via 090e6baca19f4209a23fb05d9928f51a67c3d5af (commit) from d63ef2748f18c0f20ea866cb197fa3068f180ec7 (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit 090e6baca19f4209a23fb05d9928f51a67c3d5af Author: Waldemar Brodkorb <wbx(a)openadk.org> Date: Sun Aug 30 06:50:59 2015 +0200 tst-mkostemps: fix test case on read-only root filesystem Better use /tmp as embedded systems might have a read-only root. Fix two wrong asserts. ----------------------------------------------------------------------- Summary of changes: test/misc/tst-mkostemps.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/test/misc/tst-mkostemps.c b/test/misc/tst-mkostemps.c index 2f45bfd..272e747 100644 --- a/test/misc/tst-mkostemps.c +++ b/test/misc/tst-mkostemps.c @@ -33,7 +33,7 @@ main (int argc, char *argv[]) struct stat sb_f2; /* mkstemp test */ - sprintf(name, "%s-uClibc-test.XXXXXX", __FILE__); + sprintf(name, "/tmp/%s-uClibc-test.XXXXXX", __FILE__); fd = mkstemp(name); @@ -49,7 +49,7 @@ main (int argc, char *argv[]) unlink (name); /* mkstemps test */ - sprintf(name_suffix, "%s-uClibc-test.XXXXXX.txt", __FILE__); + sprintf(name_suffix, "/tmp/%s-uClibc-test.XXXXXX.txt", __FILE__); fd = mkstemps(name_suffix, 4); @@ -65,7 +65,7 @@ main (int argc, char *argv[]) unlink (name_suffix); /* mkostemp test */ - sprintf(name, "%s-uClibc-test.XXXXXX", __FILE__); + sprintf(name, "/tmp/%s-uClibc-test.XXXXXX", __FILE__); fd = mkostemp(name, flags); @@ -82,14 +82,14 @@ main (int argc, char *argv[]) unlink (name); /* mkostemps test */ - sprintf(name_suffix, "%s-uClibc-test.XXXXXX.txt", __FILE__); + sprintf(name_suffix, "/tmp/%s-uClibc-test.XXXXXX.txt", __FILE__); fd = mkostemps(name_suffix, 4, flags); fstat(fd, &sb_f1); assert ((sb_f1.st_mode & S_IFMT) == S_IFREG) - stat(name, &sb_f2); + stat(name_suffix, &sb_f2); assert ((sb_f2.st_mode & S_IFMT) == S_IFREG) assert (sb_f1.st_ino == sb_f2.st_ino) @@ -99,14 +99,14 @@ main (int argc, char *argv[]) unlink (name_suffix); /* suffixlen = 0 */ - sprintf(name_suffix, "%s-uClibc-test.XXXXXX", __FILE__); + sprintf(name_suffix, "/tmp/%s-uClibc-test.XXXXXX", __FILE__); fd = mkostemps(name_suffix, 0, flags); fstat(fd, &sb_f1); assert ((sb_f1.st_mode & S_IFMT) == S_IFREG) - stat(name, &sb_f2); + stat(name_suffix, &sb_f2); assert ((sb_f2.st_mode & S_IFMT) == S_IFREG) assert (sb_f1.st_ino == sb_f2.st_ino) @@ -126,7 +126,7 @@ main (int argc, char *argv[]) assert(errno == EINVAL); /* suffixlen < 0 */ - sprintf(name_suffix, "%s-uClibc-test.XXXXXX.txt", __FILE__); + sprintf(name_suffix, "/tmp/%s-uClibc-test.XXXXXX.txt", __FILE__); fd = mkostemps(name_suffix, -1, flags); @@ -134,7 +134,7 @@ main (int argc, char *argv[]) assert(errno == EINVAL); /* Missing one X */ - sprintf(name_suffix, "%s-uClibc-test.XXXXX.txt", __FILE__); + sprintf(name_suffix, "/tmp/%s-uClibc-test.XXXXX.txt", __FILE__); fd = mkostemps(name_suffix, 4, flags); @@ -142,7 +142,7 @@ main (int argc, char *argv[]) assert(errno == EINVAL); /* wrong suffixlen */ - sprintf(name_suffix, "%s-uClibc-test.XXXXXX.txt", __FILE__); + sprintf(name_suffix, "/tmp/%s-uClibc-test.XXXXXX.txt", __FILE__); fd = mkostemps(name_suffix, 2, flags); hooks/post-receive -- uClibc-ng - small C library for embedded systems

1 0

gettext 0.9.14 undefined reference to `posix_spawn_file_actions_addclose', `posix_spawnp', `posix_spawn_file_actions_adddup2', `posix_spawn_file_actions_addopen'
by Alex Potapenko 27 Aug '15

27 Aug '15

Hi, I'm in the process of building a mipsel feed for Optware-ng using uClibc-ng 1.0.6 and gcc-4.9.3 toolchain built using Buildroot. The first issue I stumbled upon was when I tried to build gettext 0.9.14: libtool: link: /home/alex/optware/buildroot-mipsel-ng/toolchain/buildroot-mipsel-linux-2.6.36-uclibc-ng-4.9.3/bin/mipsel-buildroot-linux-uclibc-gcc -std=gnu99 -g -O2 -Wl,--dynamic-linker=/opt/lib/ld-uClibc.so.0 -Wl,-rpath -Wl,/opt/lib -Wl,-rpath-link -Wl,/home/alex/optware/buildroot-mipsel-ng/staging/opt/lib -o .libs/msgcmp msgcmp-msgcmp.o msgcmp-msgl-fsearch.o -L/home/alex/optware/buildroot-mipsel-ng/staging/opt/lib ./.libs/libgettextsrc.so /home/alex/optware/buildroot-mipsel-ng/builds/gettext/gettext-tools/gnulib-lib/.libs/libgettextlib.so -lncurses /home/alex/optware/buildroot-mipsel-ng/builds/gettext/gettext-tools/intl/.libs/libintl.so -lc -liconv -lm -Wl,-rpath -Wl,/opt/lib /home/alex/optware/buildroot-mipsel-ng/builds/gettext/gettext-tools/gnulib-lib/.libs/libgettextlib.so: undefined reference to `posix_spawn_file_actions_addclose' /home/alex/optware/buildroot-mipsel-ng/builds/gettext/gettext-tools/gnulib-lib/.libs/libgettextlib.so: undefined reference to `posix_spawnp' /home/alex/optware/buildroot-mipsel-ng/builds/gettext/gettext-tools/gnulib-lib/.libs/libgettextlib.so: undefined reference to `posix_spawn_file_actions_adddup2' /home/alex/optware/buildroot-mipsel-ng/builds/gettext/gettext-tools/gnulib-lib/.libs/libgettextlib.so: undefined reference to `posix_spawn_file_actions_addopen' collect2: error: ld returned 1 exit status The same gettext version builds fine against uclibc-0.9.33.2 with this patch: https://github.com/alllexx88/Optware-ng/blob/master/sources/gettext/uClibc-… I take it, those symbols are there in the headers, but not yet implemented un uclibc-ng. I can't see from the first glance any configure switch to disable the use of those symbols, will look further into the sourcecode a bit later, maybe there's a simple workaround to not use them. -- Best regards, Alex Potapenko

2 1

Buildroot uClibc 0.9.33.2 and uClibc-ng 1.0.6 compatibility?
by Alex Potapenko 27 Aug '15

27 Aug '15

Dear all, I'm developer of Optware-ng <https://github.com/alllexx88/Optware-ng>, an attempt to "revive" the obsolete Optware. All three feeds currently use Buildroot 2015-02 toolchains, two of them (arm and mipsel) use uClibc 0.9.33.2 as the libc. These uClibc targets (especially mipsel) have some hard-to-debug issues that are quite possible due to uClibc-0.9.33.2 bugs (glibc target has no such problems), so I'm thinking to switch to uClibc-ng using the latest Buildroot. The question is whether Buildroot-2015-02's uClibc 0.9.33.2 and uClibc-ng 1.0.6 are compatible? Can I simply compile new toolchain and re-package the libc, or do I need to recompile the entire repos from scratch? -- Best regards, Alex Potapenko

2 1

Re: [uclibc-ng-devel] [RFC PATCH] nptl_db/db_info: fix the incorrect initial size for dtvp
by Max Filippov 27 Aug '15

27 Aug '15

Waldemar, On Mon, Jul 20, 2015 at 4:33 PM, Junling Zheng <zhengjunling(a)huawei.com> wrote: > When debugging a program on ARMv7 with thread-local storage declared using > "__thread", attempting to print a thread-local variable will result in the > following message: > > Cannot find thread-local storage for Thread <snip> (LWP <snip>), executable > file /tmp/tls: capability not available > > This can be traced back to uclibc libpthread/nptl_db/td_thr_tls_get_addr.c > which gdb uses to look up the address of the TLS. The function returns > TD_NOCAPAB due to a mismatch in size between the DTV pointer and the size > recorded in the db description. The problem lies in libpthread/nptl_db/db_info.c > which initializes the db with the sizeof the union dtv. Instead it should > be the sizeof a pointer to union dtv. > > Fixed the initial size for dtvp to sizeof a pointer, instead of sizeof > the union. > > Refer to: > http://sourceware.org/ml/libc-alpha/2006-10/msg00088.html > https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=416b630981788c1f08e7… > > Signed-off-by: Junling Zheng <zhengjunling(a)huawei.com> > --- > libpthread/nptl_db/db_info.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/libpthread/nptl_db/db_info.c b/libpthread/nptl_db/db_info.c > index a57a053..159a027 100644 > --- a/libpthread/nptl_db/db_info.c > +++ b/libpthread/nptl_db/db_info.c > @@ -60,7 +60,7 @@ extern bool __nptl_initial_report_events; > i.e. at the very end of the area covered by TLS_PRE_TCB_SIZE. */ > DESC (_thread_db_pthread_dtvp, > TLS_PRE_TCB_SIZE + offsetof (tcbhead_t, dtv) > - - (TLS_TCB_SIZE == 0 ? sizeof (tcbhead_t) : 0), union dtv) > + - (TLS_TCB_SIZE == 0 ? sizeof (tcbhead_t) : 0), union dtv *) > #endif > Please apply this patch to the uClibc-ng as well, it fixes inspection of TLS variables in gdb for many architectures. -- Thanks. -- Max

2 1

uClibc-ng - small C library for embedded systems branch master updated. ad2f07f5bef8a891ddc54c5d9e98d2aca0deffde
by wbx＠helium.waldemar-brodkorb.de 27 Aug '15

27 Aug '15

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "uClibc-ng - small C library for embedded systems". The branch, master has been updated via ad2f07f5bef8a891ddc54c5d9e98d2aca0deffde (commit) via 5db59b479613593b31945e933790edd1ba831c5a (commit) via bcc1b625ed008c80ac51c817e6b524c8f18518cf (commit) via e2c5b08690895002470e30ab5cb26a897acdb2cf (commit) from 58eeb61bd059255436972c0039bcd4b68ef47247 (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit ad2f07f5bef8a891ddc54c5d9e98d2aca0deffde Author: Waldemar Brodkorb <wbx(a)uclibc-ng.org> Date: Sat Aug 22 20:40:42 2015 +0200 ldso: install backward compatibility symlink by default Simplify the switch from uClibc to uClibc-ng suggested by Alexey Brodkin <Alexey.Brodkin(a)synopsys.com>. Gcc always uses .0 ld.so link, so install it by default. commit 5db59b479613593b31945e933790edd1ba831c5a Author: Waldemar Brodkorb <wbx(a)uclibc-ng.org> Date: Sat Aug 22 20:41:31 2015 +0200 quieten compile warnings Sync with glibc, quietens gcc warnings. commit bcc1b625ed008c80ac51c817e6b524c8f18518cf Author: Romain Naour <romain.naour(a)openwide.fr> Date: Sat Aug 22 21:08:36 2015 +0200 add tests for mkostemps() Signed-off-by: Romain Naour <romain.naour(a)openwide.fr> commit e2c5b08690895002470e30ab5cb26a897acdb2cf Author: Junling Zheng <zhengjunling(a)huawei.com> Date: Mon Jul 20 13:33:57 2015 +0000 nptl_db/db_info: fix the incorrect initial size for dtvp When debugging a program on ARMv7 with thread-local storage declared using "__thread", attempting to print a thread-local variable will result in the following message: Cannot find thread-local storage for Thread <snip> (LWP <snip>), executable file /tmp/tls: capability not available This can be traced back to uclibc libpthread/nptl_db/td_thr_tls_get_addr.c which gdb uses to look up the address of the TLS. The function returns TD_NOCAPAB due to a mismatch in size between the DTV pointer and the size recorded in the db description. The problem lies in libpthread/nptl_db/db_info.c which initializes the db with the sizeof the union dtv. Instead it should be the sizeof a pointer to union dtv. Fixed the initial size for dtvp to sizeof a pointer, instead of sizeof the union. Refer to: http://sourceware.org/ml/libc-alpha/2006-10/msg00088.html https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=416b630981788c1f08e7… Signed-off-by: Junling Zheng <zhengjunling(a)huawei.com> ----------------------------------------------------------------------- Summary of changes: ldso/ldso/Makefile.in | 2 + libpthread/nptl/sysdeps/pthread/bits/libc-lock.h | 2 +- libpthread/nptl/sysdeps/pthread/bits/stdio-lock.h | 2 +- libpthread/nptl_db/db_info.c | 2 +- test/misc/tst-mkostemps.c | 159 +++++++++++++++++++++ 5 files changed, 164 insertions(+), 3 deletions(-) create mode 100644 test/misc/tst-mkostemps.c diff --git a/ldso/ldso/Makefile.in b/ldso/ldso/Makefile.in index 424131c..ffbb5cc 100644 --- a/ldso/ldso/Makefile.in +++ b/ldso/ldso/Makefile.in @@ -74,6 +74,8 @@ $(ldso): $(ldso:.$(ABI_VERSION)=) $(ldso:.$(ABI_VERSION)=): | $(top_builddir)lib $(ldso:.$(ABI_VERSION)=): $($(UCLIBC_LDSO_NAME)_OUT)/$(UCLIBC_LDSO_NAME)_so.a $(call link.so,$(ldso_FULL_NAME),$(ABI_VERSION)) + # link for backward compatibility + (cd $(top_builddir)lib; ln -sf $(UCLIBC_LDSO_NAME).so.$(ABI_VERSION) $(UCLIBC_LDSO_NAME).so.0 ) $($(UCLIBC_LDSO_NAME)_OUT)/$(UCLIBC_LDSO_NAME)_so.a: $(ldso-y) $(Q)$(RM) $@ diff --git a/libpthread/nptl/sysdeps/pthread/bits/libc-lock.h b/libpthread/nptl/sysdeps/pthread/bits/libc-lock.h index 4df507b..633021a 100644 --- a/libpthread/nptl/sysdeps/pthread/bits/libc-lock.h +++ b/libpthread/nptl/sysdeps/pthread/bits/libc-lock.h @@ -171,7 +171,7 @@ typedef pthread_key_t __libc_key_t; /* Initialize the named lock variable, leaving it in a consistent, unlocked state. */ #if defined _LIBC && (!defined NOT_IN_libc || defined IS_IN_libpthread) -# define __libc_lock_init(NAME) ((NAME) = LLL_LOCK_INITIALIZER, 0) +# define __libc_lock_init(NAME) ((void)((NAME) = LLL_LOCK_INITIALIZER)) #else # define __libc_lock_init(NAME) \ __libc_maybe_call (__pthread_mutex_init, (&(NAME), NULL), 0) diff --git a/libpthread/nptl/sysdeps/pthread/bits/stdio-lock.h b/libpthread/nptl/sysdeps/pthread/bits/stdio-lock.h index 5ad5d95..ae39b87 100644 --- a/libpthread/nptl/sysdeps/pthread/bits/stdio-lock.h +++ b/libpthread/nptl/sysdeps/pthread/bits/stdio-lock.h @@ -31,7 +31,7 @@ typedef struct { int lock; int cnt; void *owner; } _IO_lock_t; #define _IO_lock_initializer { LLL_LOCK_INITIALIZER, 0, NULL } #define _IO_lock_init(_name) \ - ((_name) = (_IO_lock_t) _IO_lock_initializer , 0) + ((void) ((_name) = (_IO_lock_t) _IO_lock_initializer)) #define _IO_lock_fini(_name) \ ((void) 0) diff --git a/libpthread/nptl_db/db_info.c b/libpthread/nptl_db/db_info.c index a57a053..159a027 100644 --- a/libpthread/nptl_db/db_info.c +++ b/libpthread/nptl_db/db_info.c @@ -60,7 +60,7 @@ extern bool __nptl_initial_report_events; i.e. at the very end of the area covered by TLS_PRE_TCB_SIZE. */ DESC (_thread_db_pthread_dtvp, TLS_PRE_TCB_SIZE + offsetof (tcbhead_t, dtv) - - (TLS_TCB_SIZE == 0 ? sizeof (tcbhead_t) : 0), union dtv) + - (TLS_TCB_SIZE == 0 ? sizeof (tcbhead_t) : 0), union dtv *) #endif diff --git a/test/misc/tst-mkostemps.c b/test/misc/tst-mkostemps.c new file mode 100644 index 0000000..2f45bfd --- /dev/null +++ b/test/misc/tst-mkostemps.c @@ -0,0 +1,159 @@ +/* + * Test application for mkstemp/mkstemps/mkostemp/mkostemps + * Copyright (C) 2015 by Romain Naour <romain.naour(a)openwide.fr> + * + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <sys/stat.h> +#include <unistd.h> +#include <fcntl.h> +#include <errno.h> + +#define assert(x) \ + if (!(x)) \ + { \ + fputs ("test failed: " #x "\n", stderr); \ + retval = 1; \ + goto the_end; \ + } + +int +main (int argc, char *argv[]) +{ + char name[256]; + char name_suffix[256]; + FILE *fp = NULL; + int retval = 0; + int fd; + int flags = O_RDONLY | O_CLOEXEC; + struct stat sb_f1; + struct stat sb_f2; + + /* mkstemp test */ + sprintf(name, "%s-uClibc-test.XXXXXX", __FILE__); + + fd = mkstemp(name); + + fstat(fd, &sb_f1); + assert ((sb_f1.st_mode & S_IFMT) == S_IFREG) + + stat(name, &sb_f2); + assert ((sb_f2.st_mode & S_IFMT) == S_IFREG) + + assert (sb_f1.st_ino == sb_f2.st_ino) + + close(fd); + unlink (name); + + /* mkstemps test */ + sprintf(name_suffix, "%s-uClibc-test.XXXXXX.txt", __FILE__); + + fd = mkstemps(name_suffix, 4); + + fstat(fd, &sb_f1); + assert ((sb_f1.st_mode & S_IFMT) == S_IFREG) + + stat(name_suffix, &sb_f2); + assert ((sb_f2.st_mode & S_IFMT) == S_IFREG) + + assert (sb_f1.st_ino == sb_f2.st_ino) + + close(fd); + unlink (name_suffix); + + /* mkostemp test */ + sprintf(name, "%s-uClibc-test.XXXXXX", __FILE__); + + fd = mkostemp(name, flags); + + fstat(fd, &sb_f1); + assert ((sb_f1.st_mode & S_IFMT) == S_IFREG) + + stat(name, &sb_f2); + assert ((sb_f2.st_mode & S_IFMT) == S_IFREG) + + assert (sb_f1.st_ino == sb_f2.st_ino) + assert (sb_f1.st_mode == sb_f2.st_mode) + + close(fd); + unlink (name); + + /* mkostemps test */ + sprintf(name_suffix, "%s-uClibc-test.XXXXXX.txt", __FILE__); + + fd = mkostemps(name_suffix, 4, flags); + + fstat(fd, &sb_f1); + assert ((sb_f1.st_mode & S_IFMT) == S_IFREG) + + stat(name, &sb_f2); + assert ((sb_f2.st_mode & S_IFMT) == S_IFREG) + + assert (sb_f1.st_ino == sb_f2.st_ino) + assert (sb_f1.st_mode == sb_f2.st_mode) + + close(fd); + unlink (name_suffix); + + /* suffixlen = 0 */ + sprintf(name_suffix, "%s-uClibc-test.XXXXXX", __FILE__); + + fd = mkostemps(name_suffix, 0, flags); + + fstat(fd, &sb_f1); + assert ((sb_f1.st_mode & S_IFMT) == S_IFREG) + + stat(name, &sb_f2); + assert ((sb_f2.st_mode & S_IFMT) == S_IFREG) + + assert (sb_f1.st_ino == sb_f2.st_ino) + assert (sb_f1.st_mode == sb_f2.st_mode) + + close(fd); + unlink (name_suffix); + + /* stress tests */ + + /* template len < 6 */ + sprintf(name, "XXXXX"); + + fd = mkstemp(name); + + assert(fd == -1); + assert(errno == EINVAL); + + /* suffixlen < 0 */ + sprintf(name_suffix, "%s-uClibc-test.XXXXXX.txt", __FILE__); + + fd = mkostemps(name_suffix, -1, flags); + + assert(fd == -1); + assert(errno == EINVAL); + + /* Missing one X */ + sprintf(name_suffix, "%s-uClibc-test.XXXXX.txt", __FILE__); + + fd = mkostemps(name_suffix, 4, flags); + + assert(fd == -1); + assert(errno == EINVAL); + + /* wrong suffixlen */ + sprintf(name_suffix, "%s-uClibc-test.XXXXXX.txt", __FILE__); + + fd = mkostemps(name_suffix, 2, flags); + + assert(fd == -1); + assert(errno == EINVAL); + +the_end: + if (fp != NULL) + assert (fclose (fp) == 0); + unlink (name); + unlink (name_suffix); + + return retval; +} hooks/post-receive -- uClibc-ng - small C library for embedded systems

1 0

uClibc-ng - small C library for embedded systems branch 1.0 updated. v1.0.6-1-gd63ef27
by wbx＠helium.waldemar-brodkorb.de 27 Aug '15

27 Aug '15

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "uClibc-ng - small C library for embedded systems". The branch, 1.0 has been updated via d63ef2748f18c0f20ea866cb197fa3068f180ec7 (commit) from bb1be3426bfe3f98e00ba5d172bd779df084845e (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit d63ef2748f18c0f20ea866cb197fa3068f180ec7 Author: Junling Zheng <zhengjunling(a)huawei.com> Date: Mon Jul 20 13:33:57 2015 +0000 nptl_db/db_info: fix the incorrect initial size for dtvp When debugging a program on ARMv7 with thread-local storage declared using "__thread", attempting to print a thread-local variable will result in the following message: Cannot find thread-local storage for Thread <snip> (LWP <snip>), executable file /tmp/tls: capability not available This can be traced back to uclibc libpthread/nptl_db/td_thr_tls_get_addr.c which gdb uses to look up the address of the TLS. The function returns TD_NOCAPAB due to a mismatch in size between the DTV pointer and the size recorded in the db description. The problem lies in libpthread/nptl_db/db_info.c which initializes the db with the sizeof the union dtv. Instead it should be the sizeof a pointer to union dtv. Fixed the initial size for dtvp to sizeof a pointer, instead of sizeof the union. Refer to: http://sourceware.org/ml/libc-alpha/2006-10/msg00088.html https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=416b630981788c1f08e7… Signed-off-by: Junling Zheng <zhengjunling(a)huawei.com> ----------------------------------------------------------------------- Summary of changes: libpthread/nptl_db/db_info.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libpthread/nptl_db/db_info.c b/libpthread/nptl_db/db_info.c index a57a053..159a027 100644 --- a/libpthread/nptl_db/db_info.c +++ b/libpthread/nptl_db/db_info.c @@ -60,7 +60,7 @@ extern bool __nptl_initial_report_events; i.e. at the very end of the area covered by TLS_PRE_TCB_SIZE. */ DESC (_thread_db_pthread_dtvp, TLS_PRE_TCB_SIZE + offsetof (tcbhead_t, dtv) - - (TLS_TCB_SIZE == 0 ? sizeof (tcbhead_t) : 0), union dtv) + - (TLS_TCB_SIZE == 0 ? sizeof (tcbhead_t) : 0), union dtv *) #endif hooks/post-receive -- uClibc-ng - small C library for embedded systems

1 0