https://sourceware.org/bugzilla/show_bug.cgi?id=31460
--- Comment #9 from Sourceware Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Vladimir Mezentsev <vmeze...@sourceware.org>: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=99c3fe52d237eae546d7de484d0cfbd615ac192c commit 99c3fe52d237eae546d7de484d0cfbd615ac192c Author: Vladimir Mezentsev <vladimir.mezent...@oracle.com> Date: Sat Mar 23 18:31:03 2024 -0700 gprofng: fix infinite recursion on calloc with multi-threaded applications libcollector uses pthread_getspecific() and pthread_setspecific() to access thread local memory. libcollector uses this memory to check that interposed functions (like malloc, calloc or free) don't have recursion. The first time we call calloc(), we call pthread_setspecific() to create a thread-specific value. On Ubuntu machine, pthread_setspecific() calls calloc(), and we cannot intercept such recursion. gcc supports thread-local storage. For example, static __thread int reentrance = 0; I rewrote code using this instead of pthread_setspecific(). gprofng/ChangeLog 2024-03-23 Vladimir Mezentsev <vladimir.mezent...@oracle.com> PR gprofng/31460 * libcollector/heaptrace.c: Use the __thread variable to check for * reentry. Clean up code. -- You are receiving this mail because: You are on the CC list for the bug.
