src/pre-crt0.c

   1 /* This file is loaded before crt0.o on machines where we do not
   2    remap part of the data space into text space in unexec.
   3    On these machines, there is no problem with standard crt0.o's
   4    that make environ an initialized variable.  However, we do
   5    need to make sure the label data_start exists anyway.  */
   6
   7 /* Create a label to appear at the beginning of data space.
   8    Its value is nonzero so that it cannot be put into bss.  */
   9
  10 int data_start = 1;