uClibc-alpine/libpthread, branch master

nptl_db: handle SUSv4-OB

2012-01-29T16:51:18+00:00

pthread_getconcurrency / pthread_setconcurrency is OBSOLETE in SUSv4
so disable pthread debug support too

Signed-off-by: Bernhard Reutner-Fischer

buildsys: fixup sigaction handling

2012-01-28T20:28:27+00:00

Signed-off-by: Bernhard Reutner-Fischer

libc_arm: avoid multiple version of __aeabi_unwind_cpp_pr dummy code

2012-01-27T09:05:09+00:00

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

nptl: .gitignore generated pt-crt{i,n}.S

2012-01-18T07:18:13+00:00

Signed-off-by: Bernhard Reutner-Fischer

libc: build abort with unwind-info for backtrace

2012-01-15T11:27:41+00:00

If backtrace support is turned on, build raise() and abort() with
unwind info (fixup 4c9b7f3c21ff21c199e54bfad2fdf3445fa4573d).

Signed-off-by: Bernhard Reutner-Fischer

linuxthreads/signals: do not restore handler for invalid signal

2012-01-15T00:36:07+00:00

Invalid signals have no handlers so when trying to restore the old
handler to a bad signal a SIGSEGV occurs. This is because the library
tries to store the old handler to an invalid memory area where it things
the bad signal lives.

URL: https://bugs.busybox.net/show_bug.cgi?id=4640
Signed-off-by: Markos Chandras 
Signed-off-by: Mike Frysinger

libc: allow to backtrace out of abort call

2012-01-13T11:22:59+00:00

Build raise and abort function with dwarf2 info by using
-fasynchronous-unwind-tables to make backtrace() working across a
call to abort.

A scenario where it could be useful is within a signal handler that
wants to dump a backtrace when catching some signal (i.e SIGABRT).
Without having abort & raise built with DWARF2 information, it is not
possible for the libgcc stack unwinder to walk through the call stack
out of the abort/raise function.

Impacts in terms of size are really limited

Current
   text    data     bss     dec     hex filename
    164       0       0     164      a4 ./libpthread/nptl/sysdeps/unix/sysv/linux/raise.os
    164       0       0     164      a4 ./libpthread/nptl/sysdeps/unix/sysv/linux/raise.oS
    220      24       4     248      f8 ./libc/stdlib/abort.os

With (-fasynchronous-unwind-tables)

   text    data     bss     dec     hex filename
    216       0       0     216      d8 ./libpthread/nptl/sysdeps/unix/sysv/linux/raise.os
    216       0       0     216      d8 ./libpthread/nptl/sysdeps/unix/sysv/linux/raise.oS
    280      24       4     308     134 ./libc/stdlib/abort.os

Signed-off-by: Carmelo Amoroso 
Acked-by: Bernhard Reutner-Fischer

nptl: add missing pt-tempname.c

2011-11-24T18:22:59+00:00

fix bd3c1a2495cbcb51b606f8e4892fcd127f91e645 forgotten file.

Signed-off-by: Bernhard Reutner-Fischer

nptl: sem_open: use open64 if LFS

2011-11-18T07:24:19+00:00

Signed-off-by: Bernhard Reutner-Fischer

misc: hide __gen_tempname

2011-11-17T13:46:07+00:00

fix signed vs. unsigned comparison warnings while at it

Signed-off-by: Bernhard Reutner-Fischer