https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103167
Bug ID: 103167 Summary: UBSAN error since g:05f40bc4c116ba48843728201bc7290a5e518598 Product: gcc Version: 12.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: libbacktrace Assignee: unassigned at gcc dot gnu.org Reporter: marxin at gcc dot gnu.org CC: ian at gcc dot gnu.org Blocks: 63426 Target Milestone: --- Originally reported here: https://sourceware.org/bugzilla/show_bug.cgi?id=28569 ``` UBSAN error: /home/mliska/Programming/binutils-gdb/libbacktrace/elf.c:3835:29: The following fails when I build binutils with: configure --build=x86_64-linux --disable-gdb --disable-gdbserver --enable-obsolete --target=aarch64-elf CFLAGS="-g -O2 -fsanitize=address,undefined -Wno-error" CXXLAGS="-g -O2 -fsanitize=address,undefined -Wno-error" LDFLAGS="-ldl" Target: aarch64-elf FAIL: symver symver14 Executing on host: sh -c {../as-new /home/mliska/Programming/binutils-gdb/gas/testsuite/gas/symver/symver15.s 2>&1} /dev/null dump.out (timeout = 300) /home/mliska/Programming/binutils-gdb/libbacktrace/elf.c:3835:29: runtime error: left shift of 251 by 24 places cannot be represented in type 'int' ``` Referenced Bugs: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63426 [Bug 63426] [meta-bug] Issues found with -fsanitize=undefined