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Re: Makefile or IDE?

From chris <chris-nospam@tridac.net>
Newsgroups comp.arch.embedded
Subject Re: Makefile or IDE?
Date 2021-12-21 16:45 +0000
Organization Aioe.org NNTP Server
Message-ID <spt0b6$8lp$1@gioia.aioe.org> (permalink)
References <soabn8$b4e$1@dont-email.me> <spihat$ohr$1@gioia.aioe.org> <aac8bc2e-7eed-4a97-b1e9-fecf235d9dean@googlegroups.com>

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On 12/21/21 01:18, StateMachineCOM wrote:
> Would anyone point me to a good Makefile template for building a simple embedded project with GNU-ARM?

I'm sure they must exist but perhaps most generate their own. Look
at how others have done it, but the key is to keep it simple to
start. Define a root path for sources and subdirs. same for tools
and libraries. Then some simple rules to relate compiler to srcs
and objects. You only need to understand the make basics to get
started. The syntax is arcane and it can seem opaque in error
message terms, but you just have to persevere until you have
something working.

Here's a snippet from a makefile here nothing clever, but try
to abstract as much as possible to aid reuse. Like to keep it
neat and tidy, as this aids understanding and you only need
to do that once.

# Local Project Directories

ROOT     = /export/nfs/sas8x600/system/projects/ntp-tests
PRJROOT = $(ROOT)/ntp-client

SRCDIR  = $(PRJROOT)/src
INCDIR  = $(PRJROOT)/inc
OBJDIR  = $(PRJROOT)/obj
BINDIR  = $(PRJROOT)/bin
LIBDIR  = $(PRJROOT)/lib

# Library & Test Rig

PRJLIB  = ntplib.a
PRJBIN  = ntpbin

# Subsystem libraries and includes

SYSINC = $(ROOT)/sysinc
SYSLIB = $(ROOT)/syslib

# Tools

GCCROOT = /usr/local

GCCINC  = $(GCCROOT)/include
GCCBIN  = $(GCCROOT)/bin
GCCLIB  = $(GCCROOT)/lib
GCCRTL  = $(GCCLIB)/gcc/sparc-sun-solaris2.10/4.6.1

GCCOBJS = $(GCCRTL)/crt1.o $(GCCRTL)/crti.o  $(GCCRTL)/crtbegin.o 
$(GCCRTL)/crtend.o  $(GCCRTL)/crtn.o

CC 	    = $(GCCBIN)/gcc
CFLAGS 	= -c -O2 -ansi -Wall

AS      = as
ASFLAGS =

LD	    = ld
LDFLAGS = -L/usr/local/lib/gcc/sparc-sun-solaris2.10/4.6.1 
-R/usr/local/lib -lc -lsocket -s

AR	    = ar
ARFLAGS = crvs

INCLUDES =  -I$(INCDIR) -I$(SYSINC)

#
# Dependency Search Paths
#
vpath   %.h 	$(INCDIR)
vpath   %.c	$(SRCDIR)
vpath	%.o	$(OBJDIR)

#
# Rules
#
.SUFFIXES:
.SUFFIXES:	.c .o

.c.o:
	$(CC) $(CFLAGS) $(INCLUDES) -c $(SRCDIR)/$< -o $(OBJDIR)/$@

# Network Function Library
#
LIBINCS = network.h
LIBSRCS = network.c
LIBOBJS = network.o

# Executable Test Harness

SRCS =  main.c network.c
OBJS =  main.o network.o

# Default Target: Build Library and Test Harness
#
default: $(LIBOBJS) $(OBJS) $(SRCS)
	$(AR) $(ARFLAGS) $(LIBDIR)/$(PRJLIB) $(addprefix $(OBJDIR)/, $(LIBOBJS))
	$(LD) $(LDFLAGS) $(OBJDIR)/main.o  $(GCCOBJS) $(LIBDIR)/$(PRJLIB) -o 
$(SRCDIR)/$(PRJBIN)
	cp $(LIBDIR)/$(PRJLIB) $(SYSLIB)/$(PRJLIB)
	cp $(addprefix $(INCDIR)/, $(LIBINCS)) $(SYSINC)

# Start Over...
#
clean:
	rm -f $(BINDIR)/$(PRJBIN) $(OBJDIR)/*.o $(LIBDIR)/$(PRJLIB) 
$(SYSLIB)/$(PRJLIB) $(addprefix $(SYSINC)/, $(LIBINCS))


This wasn't for an embedded project, but  nothing clever or obscure
and could probably be improved, so pull it to bits if you like...

Chris

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Thread

Makefile or IDE? pozz <pozzugno@gmail.com> - 2021-12-02 12:46 +0100
  Re: Makefile or IDE? Grant Edwards <invalid@invalid.invalid> - 2021-12-02 15:22 +0000
    Re: Makefile or IDE? pozz <pozzugno@gmail.com> - 2021-12-02 17:34 +0100
      Re: Makefile or IDE? Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2021-12-03 13:15 +0200
  Re: Makefile or IDE? Don Y <blockedofcourse@foo.invalid> - 2021-12-02 09:48 -0700
  Re: Makefile or IDE? Stefan Reuther <stefan.news@arcor.de> - 2021-12-02 17:34 +0100
    Re: Makefile or IDE? pozz <pozzugno@gmail.com> - 2021-12-03 11:49 +0100
      Re: Makefile or IDE? Stefan Reuther <stefan.news@arcor.de> - 2021-12-03 18:27 +0100
    Re: Makefile or IDE? George Neuner <gneuner2@comcast.net> - 2021-12-04 14:37 -0500
  Re: Makefile or IDE? Theo <theom+news@chiark.greenend.org.uk> - 2021-12-03 20:51 +0000
    Re: Makefile or IDE? Grant Edwards <invalid@invalid.invalid> - 2021-12-03 21:28 +0000
      Re: Makefile or IDE? George Neuner <gneuner2@comcast.net> - 2021-12-04 14:53 -0500
        Re: Makefile or IDE? David Brown <david.brown@hesbynett.no> - 2021-12-04 22:17 +0100
          Re: Makefile or IDE? Stefan Reuther <stefan.news@arcor.de> - 2021-12-05 11:02 +0100
            Re: Makefile or IDE? David Brown <david.brown@hesbynett.no> - 2021-12-05 13:16 +0100
        Re: Makefile or IDE? Grant Edwards <invalid@invalid.invalid> - 2021-12-06 13:52 +0000
          Re: Makefile or IDE? chris <chris-nospam@tridac.net> - 2021-12-17 17:19 +0000
  Re: Makefile or IDE? pozz <pozzugno@gmail.com> - 2021-12-03 23:48 +0100
    Re: Makefile or IDE? Stefan Reuther <stefan.news@arcor.de> - 2021-12-04 10:31 +0100
      Re: Makefile or IDE? pozz <pozzugno@gmail.com> - 2021-12-04 16:23 +0100
        Re: Makefile or IDE? David Brown <david.brown@hesbynett.no> - 2021-12-04 17:41 +0100
          Re: Makefile or IDE? Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2021-12-04 18:49 +0200
            Re: Makefile or IDE? David Brown <david.brown@hesbynett.no> - 2021-12-04 18:23 +0100
              Re: Makefile or IDE? Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2021-12-04 21:25 +0200
                Re: Makefile or IDE? David Brown <david.brown@hesbynett.no> - 2021-12-04 22:20 +0100
                Re: Makefile or IDE? Grant Edwards <invalid@invalid.invalid> - 2021-12-06 13:51 +0000
                Re: Makefile or IDE? David Brown <david.brown@hesbynett.no> - 2021-12-06 16:33 +0100
                Re: Makefile or IDE? Grant Edwards <invalid@invalid.invalid> - 2021-12-06 16:02 +0000
          Re: Makefile or IDE? pozz <pozzugno@gmail.com> - 2021-12-09 11:54 +0100
            Re: Makefile or IDE? Hans-Bernhard Bröker <HBBroeker@t-online.de> - 2021-12-10 18:35 +0100
              Re: Makefile or IDE? David Brown <david.brown@hesbynett.no> - 2021-12-10 19:44 +0100
                Re: Makefile or IDE? pozz <pozzugno@gmail.com> - 2021-12-11 16:18 +0100
                Re: Makefile or IDE? David Brown <david.brown@hesbynett.no> - 2021-12-11 17:06 +0100
                Re: Makefile or IDE? Grant Edwards <invalid@invalid.invalid> - 2021-12-11 16:57 +0000
                Re: Makefile or IDE? Hans-Bernhard Bröker <HBBroeker@t-online.de> - 2021-12-11 18:53 +0100
                Re: Makefile or IDE? David Brown <david.brown@hesbynett.no> - 2021-12-12 14:15 +0100
              Re: Makefile or IDE? Stefan Reuther <stefan.news@arcor.de> - 2021-12-11 10:01 +0100
                Re: Makefile or IDE? Hans-Bernhard Bröker <HBBroeker@t-online.de> - 2021-12-11 18:47 +0100
                Re: Makefile or IDE? Stefan Reuther <stefan.news@arcor.de> - 2021-12-12 11:27 +0100
        Re: Makefile or IDE? Stefan Reuther <stefan.news@arcor.de> - 2021-12-05 11:11 +0100
          Re: Makefile or IDE? David Brown <david.brown@hesbynett.no> - 2021-12-05 13:21 +0100
  Re: Makefile or IDE? Dave Nadler <drn@nadler.com> - 2021-12-06 15:45 -0500
  Re: Makefile or IDE? pozz <pozzugno@gmail.com> - 2021-12-09 10:43 +0100
  Re: Makefile or IDE? Johann Klammer <klammerj@NOSPAM.a1.net> - 2021-12-10 09:30 +0100
  Re: Makefile or IDE? chris <chris-nospam@tridac.net> - 2021-12-17 17:27 +0000
    Re: Makefile or IDE? StateMachineCOM <statemachineguru@gmail.com> - 2021-12-20 17:18 -0800
      Re: Makefile or IDE? chris <chris-nospam@tridac.net> - 2021-12-21 16:45 +0000
      Re: Makefile or IDE? Jim Jackson <jj@franjam.org.uk> - 2021-12-21 17:40 +0000
        Re: Makefile or IDE? StateMachineCOM <statemachineguru@gmail.com> - 2021-12-21 10:55 -0800

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