-# Generate the header. target[0] is the full path of the output
-# header to generate. 'source' is a dummy variable, since we get the
-# list of ISAs from env['ALL_ISA_LIST'].
-def gen_switch_hdr(target, source, env):
- fname = str(target[0])
- basename = os.path.basename(fname)
- f = open(fname, 'w')
- f.write('#include "arch/isa_specific.hh"\n')
- cond = '#if'
- for isa in env['ALL_ISA_LIST']:
- f.write('%s THE_ISA == %s_ISA\n#include "arch/%s/%s"\n'
- % (cond, isa.upper(), isa, basename))
- cond = '#elif'
- f.write('#else\n#error "THE_ISA not set"\n#endif\n')
- f.close()
- return 0
-
-# String to print when generating header
-def gen_switch_hdr_string(target, source, env):
- return "Generating ISA switch header " + str(target[0])
-
-# Build SCons Action object. 'varlist' specifies env vars that this
-# action depends on; when env['ALL_ISA_LIST'] changes these actions
-# should get re-executed.
-switch_hdr_action = Action(gen_switch_hdr, gen_switch_hdr_string,
- varlist=['ALL_ISA_LIST'])
-
-# Instantiate actions for each header
-for hdr in isa_switch_hdrs:
- env.Command(hdr, [], switch_hdr_action)