[Bug gprofng/31460] New: heap tracing causes infinite recursion on calloc with multi-threaded applications

[carlsonj at workingcode dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=31460

            Bug ID: 31460
           Summary: heap tracing causes infinite recursion on calloc with
                    multi-threaded applications
           Product: binutils
           Version: 2.43 (HEAD)
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: gprofng
          Assignee: vladimir.mezentsev at oracle dot com
          Reporter: carlsonj at workingcode dot com
  Target Milestone: ---

Created attachment 15391
  --> https://sourceware.org/bugzilla/attachment.cgi?id=15391&action=edit
Demonstrates infinite recursion with "-H on"

When setting "-H on" with "gprofng collect app", starting a new thread triggers
infinite recursion. The crash looks like this in gdb:

#26129 0x00007f81ed538de5 in calloc (size=32, esize=16) at heaptrace.c:447
#26130 0x00007f81e7c9bbaf in ___pthread_setspecific (key=key@entry=38,
value=value@entry=0x7f81e19fcac0) at ./nptl/pthread_setspecific.c:69
#26131 0x00007f81ed40bff7 in __collector_tsd_get_by_key (key_index=<optimized
out>) at tsd.c:138
#26132 0x00007f81ed538de5 in calloc (size=32, esize=16) at heaptrace.c:447
#26133 0x00007f81e7c9bbaf in ___pthread_setspecific (key=key@entry=38,
value=value@entry=0x7f81e19fcad0) at ./nptl/pthread_setspecific.c:69
#26134 0x00007f81ed40bff7 in __collector_tsd_get_by_key (key_index=<optimized
out>) at tsd.c:138
#26135 0x00007f81ed538de5 in calloc (size=32, esize=16) at heaptrace.c:447
#26136 0x00007f81e7c9bbaf in ___pthread_setspecific (key=key@entry=40,
value=value@entry=0x7f81e19fcae0) at ./nptl/pthread_setspecific.c:69
#26137 0x00007f81ed40bff7 in __collector_tsd_get_by_key (key_index=<optimized
out>) at tsd.c:138
#26138 0x00007f81ed428bfc in __collector_ext_unwind_key_init
(isPthread=isPthread@entry=1, stack=stack@entry=0x0) at unwind.c:342
#26139 0x00007f81ed40552a in collector_root (cargs=<optimized out>) at
dispatcher.c:1103
#26140 0x00007f81e7c94ac3 in start_thread (arg=<optimized out>) at
./nptl/pthread_create.c:442
#26141 0x00007f81e7d26850 in clone3 () at
../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Attached is a simple program that demonstrates the problem.

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