{simple,shoddy,smart} minsize-oriented linker
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import os.path
import subprocess
import sys
from .parse import *
from .shared import eprintf
def cc_relink_objs(verbose, cc_bin, arch, inputs, output, cflags):
archflag = '-m64' if arch == "x86_64" else '-m32'
cctyp, ccver = get_cc_version(cc_bin)
assert cctyp == "gcc", "A GCC compiler is needed for relinking objects!"
relink_arg = "-flinker-output=rel" if ccver < (9,0) else "-flinker-output=nolto-rel"
args = [cc_bin, archflag, '-nostartfiles', '-nostdlib', \
'-r', relink_arg, '-o', output] + cflags + inputs
if verbose: eprintf("cc: %s" % repr(args))
subprocess.check_call(args, stdout=subprocess.DEVNULL)
def nasm_assemble_elfhdr(verbose, nasm_bin, arch, rtdir, intbl, output, asflags):
if rtdir[-1] != '/': rtdir = rtdir + '/'
archflag = 'elf64' if arch == "x86_64" else 'elf32'
args = [nasm_bin, '-I', rtdir, '-f', archflag] + asflags + [intbl, '-o', output]
if verbose: eprintf("nasm: %s" % repr(args))
subprocess.check_call(args, stdout=subprocess.DEVNULL)
def ld_link_final(verbose, cc_bin, arch, lddir, inobjs, output, ldflags, debug):
archflag = '-m64' if arch == "x86_64" else '-m32'
args = [cc_bin, archflag, '-L', lddir, '-T', '%s/link_%s.ld'%(lddir,arch), '-no-pie']
if not debug:
args.append('-Wl,--oformat=binary')
#args = [*args, '-T', lddir+'/link.ld', '-Wl,--oformat=binary']
args += ['-nostartfiles', '-nostdlib', '-o', output, *inobjs, *ldflags]
if verbose: eprintf("ld: %s" % repr(args))
subprocess.check_call(args, stdout=subprocess.DEVNULL)