Added command line hooking option

compiler, linker, assembler and binary command lines can now be modified
using the hooks mechanism. Also, '--any_placement=first_fit' linker option
is now used only on LPC4088 using this mechanism, in order to preserve
compatibility with the other targets.

workspace_tools/hooks.py

@@ -11,7 +11,7 @@ _hooks = {}
 _running_hooks = {}
 
 # Available hook types
-_hook_types = ["binary"]
+_hook_types = ["binary", "compile", "link", "assemble"]
 
 # Available hook steps
 _hook_steps = ["pre", "replace", "post"]
@@ -59,10 +59,12 @@ def hook_tool(function):
 class Hook:
     def __init__(self, target, toolchain):
         _hooks.clear()
+        self._cmdline_hooks = {}
         self.toolchain = toolchain
         target.init_hooks(self, toolchain.__class__.__name__)
 
-    def hook_add(self, hook_type, hook_step, function):
+    # Hook various functions directly
+    def _hook_add(self, hook_type, hook_step, function):
         if not hook_type in _hook_types or not hook_step in _hook_steps:
             return False
         if not hook_type in _hooks:
@@ -70,8 +72,54 @@ class Hook:
         _hooks[hook_type][hook_step] = function
         return True
 
+    def hook_add_compiler(self, hook_step, function):
+        return self._hook_add("compile", hook_step, function)
+
+    def hook_add_linker(self, hook_step, function):
+        return self._hook_add("link", hook_step, function)
+
+    def hook_add_assembler(self, hook_step, function):
+        return self._hook_add("assemble", hook_step, function)
+
     def hook_add_binary(self, hook_step, function):
-        return self.hook_add("binary", hook_step, function)
+        return self._hook_add("binary", hook_step, function)
+
+    # Hook command lines
+    def _hook_cmdline(self, hook_type, function):
+        if not hook_type in _hook_types:
+            return False
+        self._cmdline_hooks[hook_type] = function
+        return True
+
+    def hook_cmdline_compiler(self, function):
+        return self._hook_cmdline("compile", function)
+
+    def hook_cmdline_linker(self, function):
+        return self._hook_cmdline("link", function)
+
+    def hook_cmdline_assembler(self, function):
+        return self._hook_cmdline("assemble", function)
+
+    def hook_cmdline_binary(self, function):
+        return self._hook_cmdline("binary", function)
+
+    # Return the command line after applying the hook
+    def _get_cmdline(self, hook_type, cmdline):
+        if self._cmdline_hooks.has_key(hook_type):
+            cmdline = self._cmdline_hooks[hook_type](self.toolchain.__class__.__name__, cmdline)
+        return cmdline
+
+    def get_cmdline_compiler(self, cmdline):
+        return self._get_cmdline("compile", cmdline)
+
+    def get_cmdline_linker(self, cmdline):
+        return self._get_cmdline("link", cmdline)
+
+    def get_cmdline_assembler(self, cmdline):
+        return self._get_cmdline("assemble", cmdline)
+
+    def get_cmdline_binary(self, cmdline):
+        return self._get_cmdline("binary", cmdline)
 
 ################################################################################
 

workspace_tools/targets.py

@@ -175,6 +175,11 @@ class LPC4088(Target):
     def init_hooks(self, hook, toolchain_name):
         if toolchain_name in ['ARM_STD', 'ARM_MICRO']:
             hook.hook_add_binary("post", self.binary_hook)
+            hook.hook_cmdline_linker(self.cmdline_hook)
+
+    @staticmethod
+    def cmdline_hook(toolchain, cmdline):
+        return cmdline + ["--any_placement=first_fit"]
     
     @staticmethod
     def binary_hook(t_self, elf, binf):

workspace_tools/toolchains/__init__.py

@@ -403,7 +403,7 @@ class mbedToolchain:
                 command.extend(self.cc_extra(base))
             
             self.debug(command)
-            _, stderr, rc = run_cmd(command, dirname(object))
+            _, stderr, rc = run_cmd(self.hook.get_cmdline_compiler(command), dirname(object))
             
             # Parse output for Warnings and Errors
             self.parse_output(stderr)

workspace_tools/toolchains/arm.py

@@ -81,7 +81,7 @@ class ARM(mbedToolchain):
         # Preprocess first, then assemble
         tempfile = object + '.E.s'
         self.default_cmd(self.asm + ['-D%s' % s for s in self.get_symbols() + self.macros] + ["-I%s" % i for i in includes] + ["-E", "-o", tempfile, source])
-        self.default_cmd(self.asm + ["-o", object, tempfile])
+        self.default_cmd(self.hook.get_cmdline_assembler(self.asm + ["-o", object, tempfile]))
     
     def parse_dependencies(self, dep_path):
         dependencies = []
@@ -114,15 +114,15 @@ class ARM(mbedToolchain):
         self.default_cmd([self.ar, '-r', lib_path] + objects)
     
     def link(self, output, objects, libraries, lib_dirs, mem_map):
-        args = ["-o", output, "--userlibpath", ",".join(lib_dirs), "--info=totals", "--list=.link_totals.txt", "--any_placement=first_fit"]
+        args = ["-o", output, "--userlibpath", ",".join(lib_dirs), "--info=totals", "--list=.link_totals.txt"]
         if mem_map:
             args.extend(["--scatter", mem_map])
         
-        self.default_cmd(self.ld + args + objects + libraries + self.sys_libs)
+        self.default_cmd(self.hook.get_cmdline_linker(self.ld + args + objects + libraries + self.sys_libs))
     
     @hook_tool
     def binary(self, elf, bin):
-        self.default_cmd([self.elf2bin, '--bin', '-o', bin, elf])
+        self.default_cmd(self.hook.get_cmdline_binary([self.elf2bin, '--bin', '-o', bin, elf]))
 
 
 class ARM_STD(ARM):

workspace_tools/toolchains/gcc.py

@@ -79,7 +79,7 @@ class GCC(mbedToolchain):
         self.elf2bin = join(tool_path, "arm-none-eabi-objcopy")
     
     def assemble(self, source, object, includes):
-        self.default_cmd(self.asm + ['-D%s' % s for s in self.get_symbols() + self.macros] + ["-I%s" % i for i in includes] + ["-o", object, source])
+        self.default_cmd(self.hook.get_cmdline_assembler(self.asm + ['-D%s' % s for s in self.get_symbols() + self.macros] + ["-I%s" % i for i in includes] + ["-o", object, source]))
     
     def parse_dependencies(self, dep_path):
         dependencies = []
@@ -155,11 +155,11 @@ class GCC(mbedToolchain):
         if self.CIRCULAR_DEPENDENCIES:
             libs.extend(libs)
         
-        self.default_cmd(self.ld + ["-T%s" % mem_map, "-o", output] +
-            objects + ["-L%s" % L for L in lib_dirs] + libs)
+        self.default_cmd(self.hook.get_cmdline_linker(self.ld + ["-T%s" % mem_map, "-o", output] +
+            objects + ["-L%s" % L for L in lib_dirs] + libs))
     
     def binary(self, elf, bin):
-        self.default_cmd([self.elf2bin, "-O", "binary", elf, bin])
+        self.default_cmd(self.hook.get_cmdline_binary([self.elf2bin, "-O", "binary", elf, bin]))
 
 
 class GCC_ARM(GCC):

workspace_tools/toolchains/iar.py

@@ -91,7 +91,7 @@ class IAR(mbedToolchain):
                 if (path and not path.isspace())]
     
     def assemble(self, source, object, includes):
-        self.default_cmd(self.asm + ['-D%s' % s for s in self.get_symbols() + self.macros] + ["-I%s" % i for i in includes] + ["-o", object, source])
+        self.default_cmd(self.hook.get_cmdline_assembler(self.asm + ['-D%s' % s for s in self.get_symbols() + self.macros] + ["-I%s" % i for i in includes] + ["-o", object, source]))
     
     def archive(self, objects, lib_path):
         if exists(lib_path):
@@ -100,7 +100,7 @@ class IAR(mbedToolchain):
     
     def link(self, output, objects, libraries, lib_dirs, mem_map):
         args = [self.ld, "-o", output, "--config", mem_map]
-        self.default_cmd(args + objects + libraries)
+        self.default_cmd(self.hook.get_cmdline_linker(args + objects + libraries))
     
     def binary(self, elf, bin):
-        self.default_cmd([self.elf2bin, '--bin', elf, bin])
+        self.default_cmd(self.hook.get_cmdline_binary([self.elf2bin, '--bin', elf, bin]))