build: decrease level of debug information produced by default

Refs: #5279
Change-Id: I537ff2a0a2e411279922823ae46cb7fee6586670

.waf-tools/default-compiler-flags.py

@@ -3,10 +3,12 @@
 import platform
 from waflib import Configure, Logs, Utils
 
+
 def options(opt):
     opt.add_option('--debug', '--with-debug', action='store_true', default=False,
                    help='Compile in debugging mode with minimal optimizations (-Og)')
 
+
 def configure(conf):
     conf.start_msg('Checking C++ compiler version')
 
@@ -48,7 +50,7 @@ def configure(conf):
     else:
         conf.end_msg(ccverstr)
 
-    conf.areCustomCxxflagsPresent = (len(conf.env.CXXFLAGS) > 0)
+    conf.areCustomCxxflagsPresent = len(conf.env.CXXFLAGS) > 0
 
     # General flags are always applied (e.g., selecting C++ language standard)
     generalFlags = conf.flags.getGeneralFlags(conf)
@@ -56,6 +58,7 @@ def configure(conf):
     conf.add_supported_linkflags(generalFlags['LINKFLAGS'])
     conf.env.DEFINES += generalFlags['DEFINES']
 
+
 @Configure.conf
 def check_compiler_flags(conf):
     # Debug or optimized CXXFLAGS and LINKFLAGS are applied only if the
@@ -78,10 +81,11 @@ def check_compiler_flags(conf):
 
     conf.env.DEFINES += extraFlags['DEFINES']
 
+
 @Configure.conf
 def add_supported_cxxflags(self, cxxflags):
     """
-    Check which cxxflags are supported by compiler and add them to env.CXXFLAGS variable
+    Check which cxxflags are supported by the active compiler and add them to env.CXXFLAGS variable.
     """
     if len(cxxflags) == 0:
         return
@@ -97,10 +101,11 @@ def add_supported_cxxflags(self, cxxflags):
     self.end_msg(' '.join(supportedFlags))
     self.env.prepend_value('CXXFLAGS', supportedFlags)
 
+
 @Configure.conf
 def add_supported_linkflags(self, linkflags):
     """
-    Check which linkflags are supported by compiler and add them to env.LINKFLAGS variable
+    Check which linkflags are supported by the active compiler and add them to env.LINKFLAGS variable.
     """
     if len(linkflags) == 0:
         return
@@ -133,10 +138,12 @@ class CompilerFlags(object):
         """Get dict of CXXFLAGS, LINKFLAGS, and DEFINES that are needed only in optimized mode"""
         return {'CXXFLAGS': [], 'LINKFLAGS': [], 'DEFINES': ['NDEBUG']}
 
+
 class GccBasicFlags(CompilerFlags):
     """
-    This class defines basic flags that work for both gcc and clang compilers
+    This class defines common flags that work for both gcc and clang compilers.
     """
+
     def getGeneralFlags(self, conf):
         flags = super(GccBasicFlags, self).getGeneralFlags(conf)
         flags['CXXFLAGS'] += ['-std=c++17']
@@ -147,7 +154,7 @@ class GccBasicFlags(CompilerFlags):
     def getDebugFlags(self, conf):
         flags = super(GccBasicFlags, self).getDebugFlags(conf)
         flags['CXXFLAGS'] += ['-Og',
-                              '-g3',
+                              '-g',
                               '-Wall',
                               '-Wextra',
                               '-Wpedantic',
@@ -165,7 +172,7 @@ class GccBasicFlags(CompilerFlags):
     def getOptimizedFlags(self, conf):
         flags = super(GccBasicFlags, self).getOptimizedFlags(conf)
         flags['CXXFLAGS'] += ['-O2',
-                              '-g',
+                              '-g1',
                               '-Wall',
                               '-Wextra',
                               '-Wpedantic',
@@ -177,6 +184,7 @@ class GccBasicFlags(CompilerFlags):
         flags['LINKFLAGS'] += ['-Wl,-O1']
         return flags
 
+
 class GccFlags(GccBasicFlags):
     def getDebugFlags(self, conf):
         flags = super(GccFlags, self).getDebugFlags(conf)
@@ -196,6 +204,7 @@ class GccFlags(GccBasicFlags):
             flags['CXXFLAGS'] += ['-Wno-psabi'] # Bug #5106
         return flags
 
+
 class ClangFlags(GccBasicFlags):
     def getGeneralFlags(self, conf):
         flags = super(ClangFlags, self).getGeneralFlags(conf)