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;;; ede-proj-shared.el --- EDE Generic Project shared library support -*- lexical-binding: t; -*-
;; Copyright (C) 1998-2025 Free Software Foundation, Inc.
;; Author: Eric M. Ludlam <zappo@gnu.org>
;; Keywords: project, make
;; This file is part of GNU Emacs.
;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;;
;; Handle shared object libraries in and EDE Project file.
;; Tries to deal with libtool and non-libtool situations.
(require 'ede/pmake)
(require 'ede/proj-obj)
(require 'ede/proj-prog)
;;; THIS NEEDS WORK. SEE ede-proj-obj.
;;; Code:
(defclass ede-proj-target-makefile-shared-object
(ede-proj-target-makefile-program)
((availablecompilers :initform '(ede-gcc-libtool-shared-compiler
;;ede-gcc-shared-compiler
ede-g++-libtool-shared-compiler
;;ede-g++-shared-compiler
))
(availablelinkers :initform '(ede-cc-linker-libtool
ede-g++-linker-libtool
;; Add more linker thingies here.
))
(ldflags :custom (repeat (string :tag "Libtool flag"))
:documentation
"Additional flags to add when linking this shared library.
Use ldlibs to add addition libraries.")
)
"This target generates a shared library.")
(defvar ede-gcc-shared-compiler
(clone ede-gcc-compiler
"ede-c-shared-compiler"
:name "gcc -shared"
:variables '(("CC_SHARED" . "gcc")
("C_SHARED_COMPILE" .
"$(CC_SHARED) -shared $(DEFS) $(INCLUDES) $(CPPFLAGS) $(CFLAGS)"))
; :linkvariables '(("C_SHARED_LINK" .
; "$(CC_SHARED) -shared $(CFLAGS) $(LDFLAGS) -L. -o $@ $^")
; )
; :commands '("$(C_SHARED_LINK) %s")
;; @TODO - additive modification of autoconf.
:autoconf '("AC_PROG_LIBTOOL")
)
"Compiler for C sourcecode.")
(defvar ede-gcc-libtool-shared-compiler
(clone ede-gcc-shared-compiler
"ede-c-shared-compiler-libtool"
:name "libtool"
:variables '(("LIBTOOL" . "libtool")
("LTCOMPILE" . "$(LIBTOOL) --mode=compile $(CC) $(DEFS) $(INCLUDES) $(CPPFLAGS) $(CFLAGS)")
("LTLINK" . "$(LIBTOOL) --mode=link $(CC) $(CFLAGS) $(LDFLAGS) -L. -o $@")
)
:rules (list (ede-makefile-rule
:target "%.o"
:dependencies "%.c"
:rules '("@echo '$(LTCOMPILE) -o $@ $<'; \\"
"$(LTCOMPILE) -o $@ $<"
)
))
:autoconf '("AC_PROG_LIBTOOL")
)
"Compiler for C sourcecode.")
(defvar ede-cc-linker-libtool
(clone ede-cc-linker
"ede-cc-linker-libtool"
:name "cc shared"
;; Only use this linker when c++ exists.
:sourcetype '(ede-source-c++)
:variables '(
("LIBTOOL" . "libtool")
("LTLINK" . "$(LIBTOOL) --tag=CPP --mode=link $(CPP) $(CFLAGS) $(LDFLAGS) -L. -o $@")
)
:commands '("$(LTLINK) -o $@ $^")
:autoconf '("AC_PROG_LIBTOOL")
:objectextention ".la")
"Linker needed for c++ programs.")
(defvar ede-g++-shared-compiler
(clone ede-g++-compiler
"ede-c++-shared-compiler"
:name "gcc -shared"
:variables '(("CXX_SHARED" . "g++")
("CXX_SHARED_COMPILE" .
"$(CXX_SHARED) -shared $(DEFS) $(INCLUDES) $(CPPFLAGS) $(CFLAGS)"))
;; @TODO - additive modification of autoconf.
:autoconf '("AC_PROG_LIBTOOL")
)
"Compiler for C sourcecode.")
(defvar ede-g++-libtool-shared-compiler
(clone ede-g++-shared-compiler
"ede-c++-shared-compiler-libtool"
:name "libtool"
:variables '(("CXX" "g++")
("LIBTOOL" . "libtool")
("LTCOMPILE" . "$(LIBTOOL) --tag=CXX --mode=compile $(CXX) $(DEFS) $(INCLUDES) $(CPPFLAGS) $(CFLAGS)")
)
:rules (list (ede-makefile-rule
:target "%.o"
:dependencies "%.cpp"
:rules '("@echo '$(LTCOMPILE) -o $@ $<'; \\"
"$(LTCOMPILE) -o $@ $<"
)
))
:autoconf '("AC_PROG_LIBTOOL")
)
"Compiler for C sourcecode.")
(defvar ede-g++-linker-libtool
(clone ede-g++-linker
"ede-g++-linker-libtool"
:name "g++"
;; Only use this linker when c++ exists.
:sourcetype '(ede-source-c++)
:variables '(
("LIBTOOL" . "libtool")
("LTLINK" . "$(LIBTOOL) --tag=CXX --mode=link $(CXX) $(CFLAGS) $(LDFLAGS) -L. -o $@")
)
:commands '("$(LTLINK) -o $@ $^")
:autoconf '("AC_PROG_LIBTOOL")
:objectextention ".la")
"Linker needed for c++ programs.")
;;; @TODO - C++ versions of the above.
(when nil
(insert;; These C to O rules create dependencies
"%.o: %.c\n"
"\t@echo '$(COMPILE) -c $<'; \\\n"
"\t$(COMPILE)"
(if (oref this automatic-dependencies)
" -Wp,-MD,.deps/$(*F).P"
"")
" -c $<\n\n")
(if have-libtool
(insert;; These C to shared o rules create pic code.
"%.lo: %.c\n"
"\t@echo '$(LTCOMPILE) -c $<'; \\\n"
"\t$(LTCOMPILE) -Wp,-MD,.deps/$(*F).p -c $<\n"
"\t@-sed -e 's/^\\([^:]*\\)\\.o:/\\1.lo \\1.o:/' \\\n"
"\t < .deps/$(*F).p > .deps/$(*F).P\n"
"\t@-rm -f .deps/$(*F).p\n\n"))
)
(cl-defmethod ede-proj-configure-add-missing
((_this ede-proj-target-makefile-shared-object))
"Query if any files needed by THIS provided by automake are missing.
Results in --add-missing being passed to automake."
(not (and (ede-expand-filename (ede-toplevel) "ltconfig")
(ede-expand-filename (ede-toplevel) "ltmain.sh"))))
(cl-defmethod ede-proj-makefile-insert-automake-pre-variables
((this ede-proj-target-makefile-shared-object))
"Insert bin_PROGRAMS variables needed by target THIS.
We aren't actually inserting SOURCE details, but this is used by the
Makefile.am generator, so use it to add this important bin program."
(ede-pmake-insert-variable-shared "lib_LTLIBRARIES"
(insert (concat "lib" (ede-name this) ".la"))))
(cl-defmethod ede-proj-makefile-insert-automake-post-variables
((_this ede-proj-target-makefile-shared-object))
"Insert bin_PROGRAMS variables needed by target THIS.
We need to override -program which has an LDADD element."
nil)
(cl-defmethod ede-proj-makefile-target-name ((this ede-proj-target-makefile-shared-object))
"Return the name of the main target for THIS target."
;; We need some platform gunk to make the .so change to .sl, or .a,
;; depending on the platform we are going to compile against.
(concat "lib" (ede-name this) ".la"))
(cl-defmethod ede-proj-makefile-sourcevar ((this ede-proj-target-makefile-shared-object))
"Return the variable name for THIS's sources."
(if (eq (oref (ede-target-parent this) makefile-type) 'Makefile.am)
(concat "lib" (oref this name) "_la_SOURCES")
(cl-call-next-method)))
(provide 'ede/proj-shared)
;;; ede/proj-shared.el ends here
|
