drcachesim function tracing uses malloc which is disallowed for static linkage
drcachesim wants to support embedded static linkage use, and thus avoids malloc at runtime. When -record_heap is used it violates that:
$ bin64/drrun -t drcachesim -simulator_type func_view -record_heap -offline -- suite/tests/bin/simple_app
<Application /home/bruening/dr/git/build_x64_dbg_tests/suite/tests/bin/simple_app (71659) DynamoRIO usage error : malloc invoked mid-run when disallowed by DR_DISALLOW_UNSAFE_STATIC>
#0 report_dynamorio_problem (dcontext=0x0, dumpcore_flag=16, exception_addr=0x0, report_ebp=0x0, fmt=0x7ffff7eb6f57 "Usage error: %s (%s, line %d)")
at /home/bruening/dr/git/src/core/utils.c:2140
#1 0x00007ffff7c5c033 in external_error (file=0x7ffff7f14da8 "/home/bruening/dr/git/src/core/unix/module.c", line=685,
msg=0x7ffff7f15320 "malloc invoked mid-run when disallowed by DR_DISALLOW_UNSAFE_STATIC") at /home/bruening/dr/git/src/core/utils.c:201
#2 0x00007ffff7e6941d in redirect_malloc_initonly (size=136) at /home/bruening/dr/git/src/core/unix/module.c:685
#3 0x00007fffb3c3c49e in _libelf_allocate_elf () at libelf_allocate.c:46
#4 0x00007fffb3c3e098 in _libelf_memory (image=0x7ffff70e2000 "\177ELF\002\001\001\003", sz=1820104, reporterror=1) at libelf_memory.c:52
#5 0x00007fffb3c1bbc7 in drsym_obj_mod_init_pre (map_base=0x7ffff70e2000 "\177ELF\002\001\001\003", map_size=1820104)
at /home/bruening/dr/git/src/ext/drsyms/drsyms_elf.c:225
#6 0x00007fffb3c15a17 in load_module (modpath=0x7fff33c3e370 "/lib/x86_64-linux-gnu/libc-2.29.so")
at /home/bruening/dr/git/src/ext/drsyms/drsyms_unix_common.c:140
#7 0x00007fffb3c1650d in drsym_unix_load (modpath=0x7fff33c3e370 "/lib/x86_64-linux-gnu/libc-2.29.so")
at /home/bruening/dr/git/src/ext/drsyms/drsyms_unix_common.c:449
#8 0x00007fffb3c150eb in lookup_or_load (modpath=0x7fff33c3e370 "/lib/x86_64-linux-gnu/libc-2.29.so")
at /home/bruening/dr/git/src/ext/drsyms/drsyms_unix_frontend.c:76
#9 0x00007fffb3c15227 in drsym_lookup_symbol_local (modpath=0x7fff33c3e370 "/lib/x86_64-linux-gnu/libc-2.29.so", symbol=0x7fffb3bc50e8 "tc_malloc",
modoffs=0x7fff33c02708, flags=1) at /home/bruening/dr/git/src/ext/drsyms/drsyms_unix_frontend.c:121
#10 0x00007fffb3c1551d in drsym_lookup_symbol (modpath=0x7fff33c3e370 "/lib/x86_64-linux-gnu/libc-2.29.so", symbol=0x7fffb3bc50e8 "tc_malloc",
modoffs=0x7fff33c02708, flags=1) at /home/bruening/dr/git/src/ext/drsyms/drsyms_unix_frontend.c:256
#11 0x00007fffb3b9d417 in get_pc_by_symbol (mod=0x7fff33bc3ce8, symbol=0x7fffb3bc50e8 "tc_malloc")
at /home/bruening/dr/git/src/clients/drcachesim/tracer/func_trace.cpp:161
#12 0x00007fffb3b9d5ba in instru_funcs_module_load (drcontext=0x7fff33bb3e40, mod=0x7fff33bc3ce8, loaded=true)
at /home/bruening/dr/git/src/clients/drcachesim/tracer/func_trace.cpp:191
#13 0x00007fffb3c74289 in drmgr_modload_event (drcontext=0x7fff33bb3e40, info=0x7fff33bc3ce8, loaded=1 '\001')
at /home/bruening/dr/git/src/ext/drmgr/drmgr.c:1666
#14 0x00007ffff7d64dd1 in instrument_module_load (data=0x7fff33bc3ce8, previously_loaded=true) at /home/bruening/dr/git/src/core/lib/instrument.c:2074
#15 0x00007ffff7d64cde in instrument_module_load_trigger (pc=0x7ffff732a490 "H\213\025\311\331\022") at /home/bruening/dr/git/src/core/lib/instrument.c:2048
#16 0x00007ffff7d1b720 in check_thread_vm_area (dcontext=0x7fff33bb3e40, pc=0x7ffff732a490 "H\213\025\311\331\022", tag=0x7ffff732a490 "H\213\025\311\331\022",
vmlist=0x7fff33c02db0, flags=0x7fff33c02da8, stop=0x7fff33c02df8, xfer=false) at /home/bruening/dr/git/src/core/vmareas.c:7466
#17 0x00007ffff7dda87b in check_new_page_start (dcontext=0x7fff33bb3e40, bb=0x7fff33c02d70) at /home/bruening/dr/git/src/core/arch/interp.c:720
#18 0x00007ffff7deaee2 in init_interp_build_bb (dcontext=0x7fff33bb3e40, bb=0x7fff33c02d70, start=0x7ffff732a490 "H\213\025\311\331\022", initial_flags=0,
for_trace=false, unmangled_ilist=0x0) at /home/bruening/dr/git/src/core/arch/interp.c:5041
#19 0x00007ffff7deb2d6 in build_basic_block_fragment (dcontext=0x7fff33bb3e40, start=0x7ffff732a490 "H\213\025\311\331\022", initial_flags=0, link=true,
visible=true, for_trace=false, unmangled_ilist=0x0) at /home/bruening/dr/git/src/core/arch/interp.c:5116
#20 0x00007ffff7c447e7 in d_r_dispatch (dcontext=0x7fff33bb3e40) at /home/bruening/dr/git/src/core/dispatch.c:214$ nm ext/lib64/debug/libdrsyms.so | grep ' U ' | grep alloc
U calloc@@GLIBC_2.2.5
U dr_global_alloc
U malloc@@GLIBC_2.2.5
U realloc@@GLIBC_2.2.5One way to solve would be to replace malloc in our copy of libelftc and rebuild it, using ld -wrap or the pre-processor or maybe a patch. It will work w/ standalone, and the recent static lib change will re-route DR allocs back to malloc.