Commit Graph

11 Commits

Author SHA1 Message Date
Rich Felker 839cc4e6da const-qualify the address argument to dladdr
this agrees with implementation practice on glibc and BSD systems, and
is the const-correct way to do things; it eliminates warnings from
passing pointers to const. the prototype without const came from
seemingly erroneous man pages.
2014-01-06 22:03:38 -05:00
Rich Felker 780cbbe63a implement minimal dlinfo function 2013-06-29 12:46:46 -04:00
Rich Felker 55ddbc3e5d add RTLD_NODELETE flag for dlopen
this is a trivial no-op, because dlclose never deletes libraries. thus
we might as well have it in the header in case some application wants
it, since we're already providing it anyway.
2013-01-23 22:18:45 -05:00
Rich Felker 4d07e5521e add support for RTLD_NOLOAD to dlopen
based on patch by Pierre Carrier <pierre@gcarrier.fr> that just added
the flag constant, but with minimal additional code so that it
actually works as documented. this is a nonstandard option but some
major software (reportedly, Firefox) uses it and it was easy to add
anyway.
2013-01-23 22:07:45 -05:00
Rich Felker c1a9658bd1 default features: make musl usable without feature test macros
the old behavior of exposing nothing except plain ISO C can be
obtained by defining __STRICT_ANSI__ or using a compiler option (such
as -std=c99) that predefines it. the new default featureset is POSIX
with XSI plus _BSD_SOURCE. any explicit feature test macros will
inhibit the default.

installation docs have also been updated to reflect this change.
2012-09-07 23:13:55 -04:00
Rich Felker ac5d085691 dladdr should be available under _BSD_SOURCE as well as _GNU_SOURCE 2012-09-06 22:58:34 -04:00
Rich Felker 400c5e5c83 use restrict everywhere it's required by c99 and/or posix 2008
to deal with the fact that the public headers may be used with pre-c99
compilers, __restrict is used in place of restrict, and defined
appropriately for any supported compiler. we also avoid the form
[restrict] since older versions of gcc rejected it due to a bug in the
original c99 standard, and instead use the form *restrict.
2012-09-06 22:44:55 -04:00
Rich Felker f419bcb9dc dladdr support for dynamic linker (nonstandard extension)
based on patches submitted by boris brezillon. this commit also fixes
the issue whereby the main application and libc don't have the address
ranges of their mappings stored, which was theoretically a problem for
RTLD_NEXT support in dlsym; it didn't actually matter because libc
never calls dlsym, and it seemed to be doing the right thing (by
chance) for symbols in the main program as well.
2012-08-26 21:09:26 -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 0b44a0315b initial check-in, version 0.5.0 2011-02-12 00:22:29 -05:00