REG_EDX 301 base/debug/stack_trace_posix.cc { " edx: ", context->uc_mcontext.gregs[REG_EDX] }, REG_EDX 112 sandbox/linux/seccomp-bpf/linux_seccomp.h #define SECCOMP_PARM3(_ctx) SECCOMP_REG(_ctx, REG_EDX)