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| author | Carlos O'Donell <carlos@systemhalted.org> | 2015-01-21 01:51:10 -0500 |
|---|---|---|
| committer | Carlos O'Donell <carlos@systemhalted.org> | 2015-01-21 01:51:10 -0500 |
| commit | ccdb048df457d581f6ac7ede8b0c7a593a891dfa (patch) | |
| tree | 9f87447c45093fb2ded95c982e68c9e6e886129c /dlfcn/Makefile | |
| parent | 042e1521c794a945edc43b5bfa7e69ad70420524 (diff) | |
| download | glibc-ccdb048df457d581f6ac7ede8b0c7a593a891dfa.zip glibc-ccdb048df457d581f6ac7ede8b0c7a593a891dfa.tar.gz glibc-ccdb048df457d581f6ac7ede8b0c7a593a891dfa.tar.bz2 | |
Fix recursive dlopen.
The ability to recursively call dlopen is useful for malloc
implementations that wish to load other dynamic modules that
implement reentrant/AS-safe functions to use in their own
implementation.
Given that a user malloc implementation may be called by an
ongoing dlopen to allocate memory the user malloc
implementation interrupts dlopen and if it calls dlopen again
that's a reentrant call.
This patch fixes the issues with the ld.so.cache mapping
and the _r_debug assertion which prevent this from working
as expected.
See:
https://sourceware.org/ml/libc-alpha/2014-12/msg00446.html
Diffstat (limited to 'dlfcn/Makefile')
| -rw-r--r-- | dlfcn/Makefile | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/dlfcn/Makefile b/dlfcn/Makefile index fce4aae..363278a 100644 --- a/dlfcn/Makefile +++ b/dlfcn/Makefile @@ -36,13 +36,13 @@ endif ifeq (yes,$(build-shared)) tests = glrefmain failtest tst-dladdr default errmsg1 tstcxaatexit \ bug-dlopen1 bug-dlsym1 tst-dlinfo bug-atexit1 bug-atexit2 \ - bug-atexit3 tstatexit bug-dl-leaf + bug-atexit3 tstatexit bug-dl-leaf tst-rec-dlopen endif modules-names = glreflib1 glreflib2 glreflib3 failtestmod defaultmod1 \ defaultmod2 errmsg1mod modatexit modcxaatexit \ bug-dlsym1-lib1 bug-dlsym1-lib2 bug-atexit1-lib \ bug-atexit2-lib bug-atexit3-lib bug-dl-leaf-lib \ - bug-dl-leaf-lib-cb + bug-dl-leaf-lib-cb moddummy1 moddummy2 failtestmod.so-no-z-defs = yes glreflib2.so-no-z-defs = yes @@ -139,3 +139,6 @@ $(objpfx)bug-dl-leaf: $(objpfx)bug-dl-leaf-lib.so $(objpfx)bug-dl-leaf.out: $(objpfx)bug-dl-leaf-lib-cb.so $(objpfx)bug-dl-leaf-lib.so: $(libdl) $(objpfx)bug-dl-leaf-lib-cb.so: $(objpfx)bug-dl-leaf-lib.so + +$(objpfx)tst-rec-dlopen: $(libdl) +$(objpfx)tst-rec-dlopen.out: $(objpfx)moddummy1.so $(objpfx)moddummy2.so |