CVS log for dietlibc/lib/stackgap.c

Up to [DVB] / dietlibc / lib

Request diff between arbitrary revisions

Keyword substitution: kv
Default branch: MAIN

stackgap PIE updates, add forgotten sys/capability.h

  various TLS and pthread fixes (Christian Seiler)

less undefined behavior

find ELF base in PIE fixup code via the _DYNAMIC symbol

don't assume the kernel gives us a well-aligned pointer in the auxvec to
random data

  plumbing to get preliminary PIE support for x86_64

  add implementation of hsearch and friends

  add eventfd, inotify_init1, epoll_init1, accept4, recvmmsg, sendmmsg
  add dup3, fanotify_init, fanotify_mark, signalfd4, timerfd_settime
  add timerfd_gettime

expose auxvec
provide linux/sysinfo.h

Massive ARM changes from Enrico Scholz

remove more compiler warnings
round up tls data size in stackgap

attempt to implement more current thread primitives

some i386 compile fixes

update clone prototype
fix compiler warning on amd64

  change gettimeofday vsyscall to use the vdso
  add WANT_HOSTS_GIVEUP_EARLY in dietfeatures.h

get rid of lots of socket cruft

  add WANT_GNU_STARTUP_BLOAT in dietfeatures.h to support
    program_invocation_short_name and program_invocation_name
  add INT*_MIN, INT*_MAX, UINT*_MAX, etc to stdint.h
  remove const from stdsignal prototype to agree with standard

  add WANT_VALGRIND_SUPPORT in dietfeatures.h.  When #defined, the
    startup code will check if the program is running under valgrind,
    and if it is, the SIMD optimized string routines will switch back to
    a slower version that does not generate valgrind false positives.

add witty comment

use TCB (from TLS) on i386 if available

  first stab at getting TLS to work in actual threads
  use fs: to find current thread on x86_64

some misc build fixes and forgotten files

sometimes auxvec does not point to a PHDR!!?

turns out the random data in the ELF auxvec is a 2.6.29 invention, so we
do need a /dev/urandom fallback

  use randomness passed in ELF auxvec instead of /dev/urandom in startup
    (strace looks cleaner now)
  use ELF auxvec to implement getpagesize
  support thread local storage (w00t!!!!)
and a small cosmetic change to fgetc_unlocked

make it compile again on arm
add qsort patch from Gernot to ameliorate gcc

add stuff for ip

make stackgap compile without WANT_SSP

  do the magic required for -fstack-protector in gcc 4.1.1 to actually
    work (which includes setting up thread local storage), so far on
    i386 and amd64

  update SSP (ProPolice) support (with help from Eduardo Tongson)
  enabled starting with gcc 4.1

  Lots of fixes and patches from Markus Oberhumer.
    libstdc++ compatibility
    ilp64 compatibility
    make diet libc compile with -Werror on 13 platforms
  ppc64 now compiles again

two more needed files for stack protection