public inbox for glibc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug libc/1579] New: Malloc is always called by stack back strace function
@ 2005-10-27 21:59 hjl at lucon dot org
0 siblings, 0 replies; only message in thread
From: hjl at lucon dot org @ 2005-10-27 21:59 UTC (permalink / raw)
To: glibc-bugs
In /usr/include/execinfo.h, there are
/* This function is similar to backtrace_symbols() but it writes the result
immediately to a file and can therefore also be used in situations where
malloc() is not usable anymore. */
extern void backtrace_symbols_fd (void *__const *__array, int __size, int __fd)
__THROW __nonnull ((1));
The problem is stack bcktrace functions in glibc do dlopen (libgcc_s.so.1),
which will call malloc. That is malloc will be always called no matter which
function you use. Even if you build the executable with -shared-libgcc,
dl_open_worker will call dl_map_object_deps which will call malloc.
What dl_open_worker should do when a DSO to be dlopened is already on the
DT_NEEDED list in the executable?
--
Summary: Malloc is always called by stack back strace function
Product: glibc
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: libc
AssignedTo: drepper at redhat dot com
ReportedBy: hjl at lucon dot org
CC: glibc-bugs at sources dot redhat dot com
http://sourceware.org/bugzilla/show_bug.cgi?id=1579
------- You are receiving this mail because: -------
You are on the CC list for the bug, or are watching someone who is.
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2005-10-27 21:59 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2005-10-27 21:59 [Bug libc/1579] New: Malloc is always called by stack back strace function hjl at lucon dot org
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).