[PATCH] cgcc: add Xtensa support

[Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>]

Add support for the Xtensa architecture.

Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
---

This should be used with the Zephyr RTOS on Xtensa as implemented in 
https://github.com/zephyrproject-rtos/zephyr/pull/43776

  cgcc | 7 +++++++
  1 file changed, 7 insertions(+)

diff --git a/cgcc b/cgcc
index 9c78ee63..733cadfa 100755
--- a/cgcc
+++ b/cgcc
@@ -292,6 +292,9 @@ sub add_specs {
      } elsif ($spec eq 'aarch64') {
  	return (' --arch=aarch64' .
  		&float_types (1, 1, 36, [24,8], [53,11], [113,15]));
+    } elsif ($spec eq 'xtensa') {
+	return (' --arch=xtensa' .
+		&float_types (1, 1, 21, [24,8], [53,11], [53,11]));
      } elsif ($spec eq 'host_os_specs') {
  	my $os = `uname -s`;
  	chomp $os;
@@ -319,6 +322,8 @@ sub add_specs {
  	    return &add_specs ('x86_64') . ' -mx32';
  	} elsif ($gccmachine =~ '^x86_64-') {
  	    return &add_specs ('x86_64');
+	} elsif ($gccmachine =~ '^xtensa-') {
+	    return &add_specs ('xtensa');
  	}

  	# fall back to uname -m to determine the specifics.
@@ -348,6 +353,8 @@ sub add_specs {
  	    return &add_specs ('arm');
  	} elsif ($arch =~ /^(aarch64)$/i) {
  	    return &add_specs ('aarch64');
+	} elsif ($arch =~ /^(xtensa)$/i) {
+	    return &add_specs ('xtensa');
  	}
      } else {
  	die "$0: invalid specs: $spec\n";
-- 
2.30.2