Rich Felker
3d54adbe47
printf("%#x",0) should print 0 not 0x0
2011-07-04 01:01:58 -04:00
Rich Felker
2f0c415ceb
iconv was not returning -1 on most failure
...
this broke most uses of iconv in real-world programs, especially
glib's iconv wrappers.
2011-07-03 19:26:12 -04:00
Rich Felker
58483f0afd
0.7.12 release notes
2011-07-03 16:41:20 -04:00
Rich Felker
2fdea17c3d
fix dlopen UB due to longjmp/volatile rules violation
2011-07-01 22:40:00 -04:00
Rich Felker
e936e4612f
res_search symbol, aliased to res_query for now (better than nothing)
2011-06-30 23:12:07 -04:00
Rich Felker
191ebcac31
simple rpath support (no token expansion yet) for dynamic linker
2011-06-30 23:02:27 -04:00
Rich Felker
17be829104
fill in junk in stropts.h
...
STREAMS are utterly useless as far as I can tell, but some software
was apparently broken by the presence of stropts.h but lack of macros
it's supposed to define...
2011-06-30 20:23:24 -04:00
Rich Felker
daaef3552d
fix error in previous ld80 fpclassify commit
2011-06-30 16:37:51 -04:00
Rich Felker
f6fd351c70
catch invalid ld80 bit patterns and treat them as nan
...
this should not be necessary - the invalid bit patterns cannot be
created except through type punning. however, some broken gnu software
is passing them to printf and triggering dangerous stack-smashing, so
let's catch them anyway...
2011-06-30 16:31:43 -04:00
Rich Felker
e5cb55fedd
fix logic in __fwriting
2011-06-30 13:27:08 -04:00
Rich Felker
a0b56b947a
add and consolidate nasty stdio_ext junk
...
hopefully this resolves the rest of the issues with hideously
nonportable hacks in programs that use gnulib.
2011-06-30 12:44:48 -04:00
Rich Felker
7640497f5f
implement the nonstandard GNU function fpurge
...
this is a really ugly and backwards function, but its presence will
prevent lots of broken gnulib software from trying to define its own
version of fpurge and thereby failing to build or worse.
2011-06-30 11:42:33 -04:00
Rich Felker
fb62ae74d0
fix buffer overrun in getgrent code when there are no group members
2011-06-30 08:11:06 -04:00
Rich Felker
f9ed11f3e1
posix_memalign should fail if size is not a multiple of sizeof(void *)
2011-06-29 19:26:30 -04:00
Rich Felker
47e72e10d5
avoid errors in ucontext.h when no feature test macros are defined
2011-06-29 17:13:01 -04:00
Rich Felker
f7dff1852b
locking support for random() prng
...
these interfaces are required to be thread-safe even though they are
not state-free. the random number sequence is shared across all
threads.
2011-06-29 15:29:52 -04:00
Rich Felker
af3d5405b8
work around linux bug in mprotect
...
per POSIX: The mprotect() function shall change the access protections
to be that specified by prot for those whole pages containing any part
of the address space of the process starting at address addr and
continuing for len bytes.
on the other hand, linux mprotect fails with EINVAL if the base
address and/or length is not page-aligned, so we have to align them
before making the syscall.
2011-06-29 00:42:42 -04:00
Rich Felker
9f17413c75
textrel support, cheap and ugly
2011-06-29 00:29:08 -04:00
Rich Felker
2cee45762a
release notes for 0.7.11
2011-06-28 22:06:58 -04:00
Rich Felker
6717e62ac0
reclaim the memory wasted by dynamic linking for use by malloc
2011-06-28 19:40:14 -04:00
Rich Felker
e411827960
use type directives for fenv asm functions
2011-06-28 14:41:41 -04:00
Rich Felker
bf30100ad7
use load address from elf header if possible
...
this is mostly useless for shared libs (though it could help for
prelink-like purposes); the intended use case is for adding support
for calling the dynamic linker directly to run a program, as in:
./libc.so ./a.out foo
this usage is not yet supported.
2011-06-28 14:20:41 -04:00
Rich Felker
c7debe13ee
make dynamic linker relocate the main program image last, after all libs
...
prior to this change, copy relocations for initialized pointer
variables would not reflect the relocated contents of the pointer.
2011-06-28 14:13:51 -04:00
Rich Felker
8d54681f15
fix a few bugs from last dynamic linking build system commit
...
some cruft was left and DESTDIR was not being used correctly.
2011-06-28 08:27:38 -04:00
Rich Felker
f9c9d8c333
minor updates to INSTALL documentation
2011-06-27 22:34:47 -04:00
Rich Felker
207c45d7ab
cleanup shared library build system to be more $HOME-local-install friendly
...
the path for the dynamic linker is now configurable, and failure to
install the symlink for it will not stop the build.
2011-06-27 21:38:11 -04:00
Rich Felker
230f1813ad
further fixup dlfcn.h
2011-06-27 01:02:28 -04:00
Rich Felker
87a30ce50d
match LSB/glibc constants for dynamic loader
2011-06-27 01:01:19 -04:00
Rich Felker
9e17b71fa6
fix stale pointer issue in dynamic linker with dlopen
2011-06-26 22:39:34 -04:00
Rich Felker
06933cc724
don't leave the lock held on dlopen failure..
2011-06-26 22:09:32 -04:00
Rich Felker
97507bde47
add RTLD_DEFAULT support
2011-06-26 21:50:01 -04:00
Rich Felker
0e4dae3d77
in dlopen: don't use null pointer
...
deps can be null if a library has no dependencies (such as libc itself)
2011-06-26 21:36:44 -04:00
Rich Felker
92ab5d8d15
fix resolving symbols in objects loaded in RTLD_LOCAL mode
...
basically we temporarily make the library and all its dependencies
part of the global namespace but only for the duration of performing
relocations, then return them to their former state.
2011-06-26 21:21:04 -04:00
Rich Felker
59ab43f5f8
experimental dlopen/dlsym and dynlink changes needed to support them
2011-06-26 19:23:28 -04:00
Rich Felker
bc30aea457
type directives for x86_64 math asm
2011-06-26 17:41:34 -04:00
Rich Felker
6b3d5e508f
error handling in dynamic linking
...
some of the code is not yet used, and is in preparation for dlopen
which needs to be able to handle failure loading libraries without
terminating the program.
2011-06-26 17:39:17 -04:00
Rich Felker
6e53a6eca4
fix useless use of potentially-uninitialized mode variable in sem_open
2011-06-26 16:34:05 -04:00
Rich Felker
5d0965cb56
eliminate OOB array hacks in malloc
2011-06-26 16:12:43 -04:00
Rich Felker
e22c2d3ee6
use .type directives for math asm (needed for dynamic linking to work)
2011-06-26 15:52:37 -04:00
Rich Felker
32de61e81a
fix some symbol resolution issues in dynamic linker
...
1. search was wrongly beginning with lib itself rather than dso head
2. inconsistent resolution of function pointers for functions in plt
2011-06-25 22:36:21 -04:00
Rich Felker
1a3ff4f909
fix dynamic linker issue in musl-gcc wrapper
2011-06-25 18:57:17 -04:00
Rich Felker
6250c0be4b
wordexp cannot use we_offs unless WRDE_DOOFFS flag is set
...
previously, a potentially-indeterminate value from we_offs was being
used, resulting in wrong we_wordc and subsequent crashes in the
caller.
2011-06-25 18:54:33 -04:00
Rich Felker
febbd12d00
XSI search.h API implementation by Szabolcs Nagy
2011-06-25 18:18:57 -04:00
Rich Felker
49388f3b7b
handle library paths better (ignore empty path components, etc.)
2011-06-25 17:49:16 -04:00
Rich Felker
e8b8f3c90e
move all limits that don't vary out of bits/limits.h, into main limits.h
2011-06-25 15:38:00 -04:00
Rich Felker
59633c736d
fix possible (questionable) strict aliasing violations and ptr arith
2011-06-25 12:26:08 -04:00
Rich Felker
4d95a58524
const correctness in mq_notify
...
why did gcc allow this invalid assignment to compile in the first place?
2011-06-25 09:23:36 -04:00
Rich Felker
568b8075a4
proper path searching for dynamic linker
...
first, use $LD_LIBRARY_PATH unless suid. if that fails, read path from
/etc/ld-musl-$ARCH.path and fallback to a builtin default.
2011-06-25 01:56:34 -04:00
Rich Felker
f937031800
optimize opendir using O_CLOEXEC
2011-06-25 01:38:25 -04:00
Rich Felker
e8dbf00a78
discard dso descriptors after performing relocations
...
eventually (once dlopen exists) this behavior will be conditional on
dlopen/dlsym not being reachable.
2011-06-25 00:47:28 -04:00
