Changeset 9ded977 in mainline

Timestamp:

2010-07-27T16:10:42Z (14 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

3629481

Parents:

142084b2

Message:

add initial support for line debugging information and generating disassembly outputs with source code intermixed (useful for analyzing of stack traces)
currently the disassembly and source is intermixed only in the case of amd64 kernel (other linker scripts strip the debugging sections so far)

Files:

• HelenOS.config (modified) (1 diff)
• boot/Makefile.build (modified) (1 diff)
• kernel/Makefile (modified) (2 diffs)
• kernel/arch/amd64/_link.ld.in (modified) (1 diff)
• uspace/Makefile.common (modified) (1 diff)

HelenOS.config

@@ -543 +543 @@
 ! CONFIG_BAREBONE (n/y)
 
+% Line debugging information
+! [CONFIG_STRIP_BINARIES!=y] CONFIG_LINE_DEBUG (n/y)

boot/Makefile.build

@@ -61 +61 @@
         GCC_CFLAGS += -Werror
         ICC_CFLAGS += -Werror
+endif
+
+ifeq ($(CONFIG_LINE_DEBUG),y)
+        GCC_CFLAGS += -g
+        ICC_CFLAGS += -g
+        SUNCC_CFLAGS += -g
+        CLANG_CFLAGS += -g
 endif
 

kernel/Makefile

@@ -120 +120 @@
 ifeq ($(CONFIG_LTO),y)
         GCC_CFLAGS += -flto
+endif
+
+ifeq ($(CONFIG_LINE_DEBUG),y)
+        GCC_CFLAGS += -g
+        ICC_CFLAGS += -g
+        SUNCC_CFLAGS += -g
+        CLANG_CFLAGS += -g
 endif
 
@@ -401 +408 @@
 
 $(DISASM): $(RAW)
+ifeq ($(CONFIG_LINE_DEBUG),y)
+        $(OBJDUMP) -d -S $< > $@
+else
         $(OBJDUMP) -d $< > $@
+endif
 
 $(RAW): $(LINK) $(ARCH_OBJECTS) $(GENARCH_OBJECTS) $(GENERIC_OBJECTS) $(SYMTAB_OBJECTS)

kernel/arch/amd64/_link.ld.in

@@ -53 +53 @@
         }
         
+#ifdef CONFIG_LINE_DEBUG
+        .comment 0 : { *(.comment); }
+        .debug_abbrev 0 : { *(.debug_abbrev); }
+        .debug_aranges 0 : { *(.debug_aranges); }
+        .debug_info 0 : { *(.debug_info); }
+        .debug_line 0 : { *(.debug_line); }
+        .debug_loc 0 : { *(.debug_loc); }
+        .debug_pubnames 0 : { *(.debug_pubnames); }
+        .debug_pubtypes 0 : { *(.debug_pubtypes); }
+        .debug_ranges 0 : { *(.debug_ranges); }
+        .debug_str 0 : { *(.debug_str); }
+#endif
+        
         /DISCARD/ : {
                 *(*);

uspace/Makefile.common

@@ -172 +172 @@
 ifneq ($(BINARY),)
 %.disasm: $(BINARY)
+ifeq ($(CONFIG_LINE_DEBUG),y)
+        $(OBJDUMP) -d -S $< > $@
+else
         $(OBJDUMP) -d $< > $@
+endif
 
 $(BINARY): $(LINKER_SCRIPT) $(OBJECTS) $(LIBS) $(BASE_LIBS)