No debugging symbols in gdb even when compiling with -g flag

Question

I am trying to compile my program with debugging symbols for use in gdb. I have added the -g flag to my makefile but I still get "Reading symbols from ...(no debugging symbols found)" when I load the program in gdb. What is wrong??

Here is a stripped down example of my makefile which should have the relevant bits:

CPP = g++
CFLAGS = -c -g -Wall

$(BIN): $(OBJ)
 $(CPP) $(LDFLAGS) $(OBJ) -o $(BIN) $(LIBS)

<test.o>: <test.cpp>
 $(CPP) $(CFLAGS) <test.cpp> -o <test.o>

If you'd like to see the whole thing you can go here instead, though I don't think it's necessary:

http://pastebin.com/vGNjy0ga

Miscellaneous notes.. I'm compiling with MinGW on Windows and I have SFML and OpenGL as dependencies.

And no, the -s flag is nowhere to be found in my makefile.

Answer 1

I dont have much experience with Mingw but try replacing -g with -ggdb. This may solve your problem. According to gcc man page

Produce debugging information for use by GDB. This means to use the most expressive format available (DWARF 2, stabs, or the native format if neither of those are supported), including GDB extensions if at all possible.

Answer 2

I think you need -g when linking the object into a binary code.

CPP = g++
CFLAGS = -g -Wall

$(BIN): $(OBJ)
 $(CPP) $(CFLAGS) $(OBJ) -o $(BIN) $(LDFLAGS) $(LIBS)

<test.o>: <test.cpp>
 $(CPP) $(CFLAGS) -c <test.cpp> -o <test.o>