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more optimizations for embedded systems: 

when LOADABLE_MODULES is off, don't export symbols from the main binary
  when LOADABLE_MODULES is off, and the compiler/linker support it, strip out code not used in the final binary


git-svn-id: http://svn.digium.com/svn/asterisk/trunk@41166 f38db490-d61c-443f-a65b-d21fe96a405b
This commit is contained in:
kpfleming 2006-08-26 16:45:35 +00:00
parent cdffda3e50
commit da5141501b
5 changed files with 329 additions and 151 deletions
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4
Makefile.moddir_rules
View File

@ -15,6 +15,10 @@ ifneq ($(findstring MALLOC_DEBUG,$(MENUSELECT_CFLAGS)),)
CFLAGS+=-include $(ASTTOPDIR)/include/asterisk/astmm.h
endif
ifeq ($(findstring LOADABLE_MODULES,$(MENUSELECT_CFLAGS)),)
CFLAGS+=${GC_CFLAGS}
endif
ifneq ($(findstring STATIC_BUILD,$(MENUSELECT_CFLAGS)),)
STATIC_BUILD=-static
endif

428
configure vendored
View File

@ -1,5 +1,5 @@
#! /bin/sh
# From configure.ac Revision: 41119 .
# From configure.ac Revision: 41133 .
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.60.
#
@ -795,6 +795,8 @@ ALLOCA
EGREP
LIBOBJS
POW_LIB
GC_CFLAGS
GC_LDFLAGS
GSM_INTERNAL
KDEINIT
KDEDIR
@ -13611,146 +13613,6 @@ echo "${ECHO_T}no" >&6; }
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
{ echo "$as_me:$LINENO: checking checking for res_ninit" >&5
echo $ECHO_N "checking checking for res_ninit... $ECHO_C" >&6; }
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
#include <resolv.h>
int
main ()
{
int foo = res_ninit(NULL);
;
return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (ac_try="$ac_link"
case "(($ac_try" in
*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
*) ac_try_echo=$ac_try;;
esac
eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
(eval "$ac_link") 2>conftest.er1
ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
cat conftest.err >&5
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); } &&
{ ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
{ (case "(($ac_try" in
*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
*) ac_try_echo=$ac_try;;
esac
eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
(eval "$ac_try") 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; } &&
{ ac_try='test -s conftest$ac_exeext'
{ (case "(($ac_try" in
*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
*) ac_try_echo=$ac_try;;
esac
eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
(eval "$ac_try") 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
{ echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6; }
cat >>confdefs.h <<\_ACEOF
#define HAVE_RES_NINIT 1
_ACEOF
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
{ echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6; }
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
{ echo "$as_me:$LINENO: checking checking for RTLD_NOLOAD" >&5
echo $ECHO_N "checking checking for RTLD_NOLOAD... $ECHO_C" >&6; }
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
#include <dlfcn.h>
int
main ()
{
int foo = RTLD_NOLOAD;
;
return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (ac_try="$ac_link"
case "(($ac_try" in
*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
*) ac_try_echo=$ac_try;;
esac
eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
(eval "$ac_link") 2>conftest.er1
ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
cat conftest.err >&5
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); } &&
{ ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
{ (case "(($ac_try" in
*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
*) ac_try_echo=$ac_try;;
esac
eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
(eval "$ac_try") 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; } &&
{ ac_try='test -s conftest$ac_exeext'
{ (case "(($ac_try" in
*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
*) ac_try_echo=$ac_try;;
esac
eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
(eval "$ac_try") 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
{ echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6; }
cat >>confdefs.h <<\_ACEOF
#define HAVE_RTLD_NOLOAD 1
_ACEOF
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
{ echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6; }
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
@ -14100,6 +13962,284 @@ fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
{ echo "$as_me:$LINENO: checking checking for -ffunction-sections support" >&5
echo $ECHO_N "checking checking for -ffunction-sections support... $ECHO_C" >&6; }
saved_CFLAGS="${CFLAGS}"
CFLAGS="${CFLAGS} -ffunction-sections"
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
int
main ()
{
int x = 1;
;
return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (ac_try="$ac_compile"
case "(($ac_try" in
*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
*) ac_try_echo=$ac_try;;
esac
eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
(eval "$ac_compile") 2>conftest.er1
ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
cat conftest.err >&5
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); } &&
{ ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
{ (case "(($ac_try" in
*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
*) ac_try_echo=$ac_try;;
esac
eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
(eval "$ac_try") 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; } &&
{ ac_try='test -s conftest.$ac_objext'
{ (case "(($ac_try" in
*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
*) ac_try_echo=$ac_try;;
esac
eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
(eval "$ac_try") 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
{ echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6; }
saved_LDFLAGS="${LDFLAGS}"
LDFLAGS="${LDFLAGS} -Wl,--gc-sections"
{ echo "$as_me:$LINENO: checking checking for --gc-sections support" >&5
echo $ECHO_N "checking checking for --gc-sections support... $ECHO_C" >&6; }
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
int
main ()
{
int x = 1;
;
return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (ac_try="$ac_link"
case "(($ac_try" in
*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
*) ac_try_echo=$ac_try;;
esac
eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
(eval "$ac_link") 2>conftest.er1
ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
cat conftest.err >&5
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); } &&
{ ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
{ (case "(($ac_try" in
*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
*) ac_try_echo=$ac_try;;
esac
eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
(eval "$ac_try") 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; } &&
{ ac_try='test -s conftest$ac_exeext'
{ (case "(($ac_try" in
*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
*) ac_try_echo=$ac_try;;
esac
eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
(eval "$ac_try") 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
{ echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6; }
GC_CFLAGS="-ffunction-sections"
GC_LDFLAGS="-Wl,--gc-sections"
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
{ echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6; }
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
LDFLAGS="${saved_LDFLAGS}"
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
{ echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6; }
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
CFLAGS="${saved_CFLAGS}"
{ echo "$as_me:$LINENO: checking checking for res_ninit" >&5
echo $ECHO_N "checking checking for res_ninit... $ECHO_C" >&6; }
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
#include <resolv.h>
int
main ()
{
int foo = res_ninit(NULL);
;
return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (ac_try="$ac_link"
case "(($ac_try" in
*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
*) ac_try_echo=$ac_try;;
esac
eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
(eval "$ac_link") 2>conftest.er1
ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
cat conftest.err >&5
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); } &&
{ ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
{ (case "(($ac_try" in
*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
*) ac_try_echo=$ac_try;;
esac
eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
(eval "$ac_try") 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; } &&
{ ac_try='test -s conftest$ac_exeext'
{ (case "(($ac_try" in
*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
*) ac_try_echo=$ac_try;;
esac
eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
(eval "$ac_try") 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
{ echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6; }
cat >>confdefs.h <<\_ACEOF
#define HAVE_RES_NINIT 1
_ACEOF
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
{ echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6; }
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
{ echo "$as_me:$LINENO: checking checking for RTLD_NOLOAD" >&5
echo $ECHO_N "checking checking for RTLD_NOLOAD... $ECHO_C" >&6; }
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
#include <dlfcn.h>
int
main ()
{
int foo = RTLD_NOLOAD;
;
return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (ac_try="$ac_link"
case "(($ac_try" in
*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
*) ac_try_echo=$ac_try;;
esac
eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
(eval "$ac_link") 2>conftest.er1
ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
cat conftest.err >&5
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); } &&
{ ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
{ (case "(($ac_try" in
*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
*) ac_try_echo=$ac_try;;
esac
eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
(eval "$ac_try") 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; } &&
{ ac_try='test -s conftest$ac_exeext'
{ (case "(($ac_try" in
*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
*) ac_try_echo=$ac_try;;
esac
eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
(eval "$ac_try") 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
{ echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6; }
cat >>confdefs.h <<\_ACEOF
#define HAVE_RTLD_NOLOAD 1
_ACEOF
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
{ echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6; }
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
if test "${ac_cv_header_libkern_OSAtomic_h+set}" = set; then
{ echo "$as_me:$LINENO: checking for libkern/OSAtomic.h" >&5
echo $ECHO_N "checking for libkern/OSAtomic.h... $ECHO_C" >&6; }
@ -30337,7 +30477,7 @@ ALLOCA!$ALLOCA$ac_delim
EGREP!$EGREP$ac_delim
LIBOBJS!$LIBOBJS$ac_delim
POW_LIB!$POW_LIB$ac_delim
GSM_INTERNAL!$GSM_INTERNAL$ac_delim
GC_CFLAGS!$GC_CFLAGS$ac_delim
_ACEOF
if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 97; then
@ -30379,6 +30519,8 @@ _ACEOF
ac_delim='%!_!# '
for ac_last_try in false false false false false :; do
cat >conf$$subs.sed <<_ACEOF
GC_LDFLAGS!$GC_LDFLAGS$ac_delim
GSM_INTERNAL!$GSM_INTERNAL$ac_delim
KDEINIT!$KDEINIT$ac_delim
KDEDIR!$KDEDIR$ac_delim
NETSNMP_CONFIG!$NETSNMP_CONFIG$ac_delim
@ -30398,7 +30540,7 @@ CURL_LIB!$CURL_LIB$ac_delim
LTLIBOBJS!$LTLIBOBJS$ac_delim
_ACEOF
if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 17; then
if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 19; then
break
elif $ac_last_try; then
{ { echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5

35
configure.ac
View File

@ -251,6 +251,35 @@ AC_DEFINE([HAVE_GCC_ATOMICS], 1, [Define to 1 if your GCC C compiler provides at
AC_MSG_RESULT(no)
)
AST_GCC_ATTRIBUTE(pure)
AST_GCC_ATTRIBUTE(malloc)
AST_GCC_ATTRIBUTE(const)
AST_GCC_ATTRIBUTE(unused)
AST_GCC_ATTRIBUTE(always_inline)
AC_MSG_CHECKING(checking for -ffunction-sections support)
saved_CFLAGS="${CFLAGS}"
CFLAGS="${CFLAGS} -ffunction-sections"
AC_COMPILE_IFELSE(
AC_LANG_PROGRAM([], [int x = 1;]),
AC_MSG_RESULT(yes)
[saved_LDFLAGS="${LDFLAGS}"]
[LDFLAGS="${LDFLAGS} -Wl,--gc-sections"]
AC_MSG_CHECKING(checking for --gc-sections support)
AC_LINK_IFELSE(
AC_LANG_PROGRAM([], [int x = 1;]),
AC_MSG_RESULT(yes)
[GC_CFLAGS="-ffunction-sections"]
[[GC_LDFLAGS="-Wl,--gc-sections"]],
AC_MSG_RESULT(no)
)
[LDFLAGS="${saved_LDFLAGS}"],
AC_MSG_RESULT(no)
)
CFLAGS="${saved_CFLAGS}"
AC_SUBST(GC_CFLAGS)
AC_SUBST(GC_LDFLAGS)
AC_MSG_CHECKING(checking for res_ninit)
AC_LINK_IFELSE(
AC_LANG_PROGRAM([#include <resolv.h>],
@ -269,12 +298,6 @@ AC_LINK_IFELSE(
AC_MSG_RESULT(no)
)
AST_GCC_ATTRIBUTE(pure)
AST_GCC_ATTRIBUTE(malloc)
AST_GCC_ATTRIBUTE(const)
AST_GCC_ATTRIBUTE(unused)
AST_GCC_ATTRIBUTE(always_inline)
AC_CHECK_HEADER([libkern/OSAtomic.h],
[AC_DEFINE_UNQUOTED([HAVE_OSX_ATOMICS], 1, [Define to 1 if OSX atomic operations are supported.])])

10
main/Makefile
View File

@ -62,7 +62,9 @@ endif
ifneq ($(findstring darwin,$(OSARCH)),)
AST_LIBS+=-lresolv
ASTLINK=-Wl,-dynamic
ifneq ($(findstring LOADABLE_MODULES,$(MENUSELECT_CFLAGS)),)
ASTLINK=-Wl,-dynamic
endif
# Mac on Intel CoreDuo does not need poll compatibility layer
ifneq ($(PROC),i386)
OBJS+=poll.o
@ -70,7 +72,11 @@ ifneq ($(findstring darwin,$(OSARCH)),)
endif
else
# These are used for all but Darwin
ASTLINK=-Wl,-E
ifneq ($(findstring LOADABLE_MODULES,$(MENUSELECT_CFLAGS)),)
ASTLINK+=-Wl,--export-dynamic
else
ASTLINK+=${GC_LDFLAGS}
endif
ifneq ($(findstring BSD,$(OSARCH)),)
LDFLAGS+=-L/usr/local/lib
endif

3
makeopts.in
View File

@ -32,6 +32,9 @@ PROC=@HOST_CPU@
OSARCH=@HOST_OS@
OSREV=@PBX_OSREV@
GC_CFLAGS=@GC_CFLAGS@
GC_LDFLAGS=@GC_LDFLAGS@
prefix = @prefix@
exec_prefix = @exec_prefix@