Merge branch 'wip/ppc-lynx178' into 'master'

ppc-lynx: add light runtime support

See merge request eng/toolchain/bb-runtimes!144

Makefile

@@ -128,6 +128,11 @@ ifeq ($(TARGET),$(filter $(TARGET),ppc-pikeos5))
     TARGETS=ppc-pikeos5
 endif
 
+ifeq ($(TARGET),$(filter $(TARGET),ppc-lynx178))
+    TGT=powerpc-xcoff-lynxos178
+    TARGETS=ppc-lynx178
+endif
+
 ifeq ($(TARGETS), none)
   ifeq ($(TARGET),)
     $(error Error: TARGET is not defined)

build_rts.py

@@ -109,6 +109,8 @@
 
 from freertos import ArmV7AFP_FreeRTOS
 
+from lynx import PPCLynx
+
 import argparse
 import os
 import subprocess
@@ -326,6 +328,9 @@ def build_configs(target):
         t = Aarch64QNX()
     elif target == "arm-qnx":
         t = ARMQNX()
+    # LynxOS
+    elif target == "ppc-lynx178":
+        t = PPCLynx()
     else:
         print("Error: undefined target %s" % target)
         sys.exit(2)

gen_rts_sources.py

@@ -48,7 +48,16 @@ def main():
     )
     parser.add_argument(
         "--source-profile",
-        choices=["bb", "deos", "freertos", "linux", "pikeos", "vx7r2cert", "qnx"],
+        choices=[
+            "bb",
+            "deos",
+            "freertos",
+            "linux",
+            "lynx",
+            "pikeos",
+            "vx7r2cert",
+            "qnx",
+        ],
         default="bb",
         help="platform specific source selections",
     )

linux/__init__.py

@@ -4,7 +4,7 @@
 class Linux(DFBBTarget):
     def __init__(self):
         super().__init__()
-        self.add_gnat_sources("src/s-macres__native.adb")
+        self.add_gnat_sources("src/s-macres__libc.adb")
         self.add_gnarl_sources("linux/adaint.c")
 
     def has_libc(self, profile):

lynx/__init__.py

@@ -0,0 +1,50 @@
+from support.bsp_sources.target import Target
+from support.bsp_sources.archsupport import ArchSupport
+
+
+class Lynx(Target):
+    def __init__(self):
+        super().__init__()
+        self.add_gnat_sources("src/s-macres__libc.adb", "lynx/stdio_symbols.c")
+
+    def has_libc(self, profile):
+        return True
+
+    @property
+    def has_single_precision_fpu(self):
+        return True
+
+    @property
+    def has_double_precision_fpu(self):
+        return True
+
+    @property
+    def is_os_target(self):
+        return True
+
+    @property
+    def has_command_line_arguments(self):
+        return True
+
+    @property
+    def is_legacy_format(self):
+        return True
+
+
+class PPCLynx(Lynx):
+    def __init__(self):
+        super().__init__()
+
+    @property
+    def target(self):
+        return "ppc-lynx178"
+
+    @property
+    def name(self):
+        return "lynx"
+
+    @property
+    def system_ads(self):
+        return {
+            "light": "system-lynxos178-ppc.ads",
+        }

lynx/stdio_symbols.c

@@ -0,0 +1,55 @@
+/****************************************************************************
+ *                                                                          *
+ *                        GNAT RUN-TIME COMPONENTS                          *
+ *                                                                          *
+ *                         S T D I O   S Y M B O L S                        *
+ *                                                                          *
+ *                          C Implementation File                           *
+ *                                                                          *
+ *          Copyright (C) 2024-2024, Free Software Foundation, Inc.         *
+ *                                                                          *
+ * GNAT is free software;  you can  redistribute it  and/or modify it under *
+ * terms of the  GNU General Public License as published  by the Free Soft- *
+ * ware  Foundation;  either version 3,  or (at your option) any later ver- *
+ * sion.  GNAT is distributed in the hope that it will be useful, but WITH- *
+ * OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY *
+ * or FITNESS FOR A PARTICULAR PURPOSE.                                     *
+ *                                                                          *
+ * As a special exception under Section 7 of GPL version 3, you are granted *
+ * additional permissions described in the GCC Runtime Library Exception,   *
+ * version 3.1, as published by the Free Software Foundation.               *
+ *                                                                          *
+ * You should have received a copy of the GNU General Public License and    *
+ * a copy of the GCC Runtime Library Exception along with this program;     *
+ * see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    *
+ * <http://www.gnu.org/licenses/>.                                          *
+ *                                                                          *
+ * GNAT was originally developed  by the GNAT team at  New York University. *
+ * Extensive contributions were provided by Ada Core Technologies Inc.      *
+ *                                                                          *
+ ****************************************************************************/
+
+#include <stdio.h>
+
+/*
+ * stdin, stdout and stderr are C defines and must be exposed for
+ * a-textio__ppclynx178.adb.
+ */
+
+FILE *
+__gnat_constant_stdin (void)
+{
+  return stdin;
+}
+
+FILE *
+__gnat_constant_stdout (void)
+{
+  return stdout;
+}
+
+FILE *
+__gnat_constant_stderr (void)
+{
+  return stderr;
+}

qnx/__init__.py

@@ -4,7 +4,7 @@
 class QNX(Target):
     def __init__(self):
         super(QNX, self).__init__()
-        self.add_gnat_sources("src/s-macres__qnx.adb")
+        self.add_gnat_sources("src/s-macres__libc.adb")
 
     @property
     def has_command_line_arguments(self):