Merge pull request #5797 from hosse005/master

ARMC5+6: Specify CPU for ARM scatter file preprocessor

Author: cmonr

tools/export/makefile/__init__.py

@@ -228,9 +228,10 @@ def prepare_sys_lib(libname):
 
     def generate(self):
         if self.resources.linker_script:
+            sct_file = self.resources.linker_script
             new_script = self.toolchain.correct_scatter_shebang(
-                self.resources.linker_script)
-            if new_script is not self.resources.linker_script:
+                sct_file, join(self.resources.file_basepath[sct_file], "BUILD"))
+            if new_script is not sct_file:
                 self.resources.linker_script = new_script
                 self.generated_files.append(new_script)
         return super(Arm, self).generate()

tools/export/uvision/__init__.py

@@ -217,12 +217,14 @@ def generate(self):
             # UVFile tuples defined above
             'project_files': sorted(list(self.format_src(srcs).iteritems()),
                                     key=lambda (group, _): group.lower()),
-            'linker_script':self.toolchain.correct_scatter_shebang(
-                self.resources.linker_script),
             'include_paths': '; '.join(self.resources.inc_dirs).encode('utf-8'),
             'device': DeviceUvision(self.target),
         }
-        self.generated_files.append(ctx['linker_script'])
+        sct_file = self.resources.linker_script
+        ctx['linker_script'] = self.toolchain.correct_scatter_shebang(
+            sct_file, self.resources.file_basepath[sct_file])
+        if ctx['linker_script'] != sct_file:
+            self.generated_files.append(ctx['linker_script'])
         core = ctx['device'].core
         ctx['cputype'] = core.rstrip("FD")
         if core.endswith("FD"):

tools/toolchains/arm.py

@@ -16,8 +16,8 @@
 """
 import re
 from copy import copy
-from os.path import join, dirname, splitext, basename, exists
-from os import makedirs, write
+from os.path import join, dirname, splitext, basename, exists, relpath
+from os import makedirs, write, curdir
 from tempfile import mkstemp
 
 from tools.toolchains import mbedToolchain, TOOLCHAIN_PATHS
@@ -81,6 +81,8 @@ def __init__(self, target, notify=None, macros=None,
         self.ar = join(ARM_BIN, "armar")
         self.elf2bin = join(ARM_BIN, "fromelf")
 
+        self.SHEBANG += " --cpu=%s" % cpu
+
     def parse_dependencies(self, dep_path):
         dependencies = []
         for line in open(dep_path).readlines():
@@ -182,7 +184,7 @@ def compile_c(self, source, object, includes):
     def compile_cpp(self, source, object, includes):
         return self.compile(self.cppc, source, object, includes)
 
-    def correct_scatter_shebang(self, scatter_file):
+    def correct_scatter_shebang(self, scatter_file, base_path=curdir):
         """Correct the shebang at the top of a scatter file.
 
         Positional arguments:
@@ -196,16 +198,19 @@ def correct_scatter_shebang(self, scatter_file):
         """
         with open(scatter_file, "rb") as input:
             lines = input.readlines()
-            if  (lines[0].startswith(self.SHEBANG) or
-                 not lines[0].startswith("#!")):
+            if (lines[0].startswith(self.SHEBANG) or
+                not lines[0].startswith("#!")):
                 return scatter_file
             else:
                 new_scatter = join(self.build_dir, ".link_script.sct")
+                self.SHEBANG += " -I %s" % relpath(dirname(scatter_file),
+                                                   base_path)
                 if self.need_update(new_scatter, [scatter_file]):
                     with open(new_scatter, "wb") as out:
                         out.write(self.SHEBANG)
                         out.write("\n")
                         out.write("".join(lines[1:]))
+
                 return new_scatter
 
     @hook_tool
@@ -310,15 +315,19 @@ def __init__(self, target, *args, **kwargs):
         if target.core.lower().endswith("fd"):
             self.flags['common'].append("-mcpu=%s" % target.core.lower()[:-2])
             self.flags['ld'].append("--cpu=%s" % target.core.lower()[:-2])
+            self.SHEBANG += " -mcpu=%s" % target.core.lower()[:-2]
         elif target.core.lower().endswith("f"):
             self.flags['common'].append("-mcpu=%s" % target.core.lower()[:-1])
             self.flags['ld'].append("--cpu=%s" % target.core.lower()[:-1])
+            self.SHEBANG += " -mcpu=%s" % target.core.lower()[:-1]
         elif target.core.lower().endswith("ns"):
             self.flags['common'].append("-mcpu=%s" % target.core.lower()[:-3])
             self.flags['ld'].append("--cpu=%s" % target.core.lower()[:-3])
+            self.SHEBANG += " -mcpu=%s" % target.core.lower()[:-3]
         else:
             self.flags['common'].append("-mcpu=%s" % target.core.lower())
             self.flags['ld'].append("--cpu=%s" % target.core.lower())
+            self.SHEBANG += " -mcpu=%s" % target.core.lower()
 
         if target.core == "Cortex-M4F":
             self.flags['common'].append("-mfpu=fpv4-sp-d16")
@@ -356,7 +365,6 @@ def __init__(self, target, *args, **kwargs):
         self.ar = [join(TOOLCHAIN_PATHS["ARMC6"], "armar")]
         self.elf2bin = join(TOOLCHAIN_PATHS["ARMC6"], "fromelf")
 
-
     def parse_dependencies(self, dep_path):
         return mbedToolchain.parse_dependencies(self, dep_path)