Defined in 4 files as a macro:
- libexec/rtld-elf/powerpc/rtld_machdep.h, line 68 (as a macro)
- libexec/rtld-elf/powerpc64/rtld_machdep.h, line 60 (as a macro)
- libexec/rtld-elf/riscv/rtld_machdep.h, line 85 (as a macro)
- sys/mips/include/tls.h, line 43 (as a macro)