mirror of git://gcc.gnu.org/git/gcc.git
configure.ac (HAVE_AS_CFI_PSEUDO_OP): New test.
* configure.ac (HAVE_AS_CFI_PSEUDO_OP): New test. * configure: Regenerate. * fficonfig.h.in: Regenerate. * src/m68k/sysv.S (CFI_STARTPROC,CFI_ENDPROC, CFI_OFFSET,CFI_DEF_CFA): New macros. (ffi_call_SYSV): Add callframe annotation. From-SVN: r124600
This commit is contained in:
Roman Zippel
Roman Zippel
parent
b5296e520d
commit
e6fbf387cf
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@ -1,3 +1,12 @@
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2007-05-10 Roman Zippel <zippel@linux-m68k.org>
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* configure.ac (HAVE_AS_CFI_PSEUDO_OP): New test.
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* configure: Regenerate.
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* fficonfig.h.in: Regenerate.
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* src/m68k/sysv.S (CFI_STARTPROC,CFI_ENDPROC,
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CFI_OFFSET,CFI_DEF_CFA): New macros.
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(ffi_call_SYSV): Add callframe annotation.
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2007-05-10 Roman Zippel <zippel@linux-m68k.org>
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* src/m68k/ffi.c (ffi_prep_args,ffi_prep_cif_machdep): Fix
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@ -7444,6 +7444,70 @@ presetting ac_cv_c_bigendian=no (or yes) will help" >&2;}
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esac
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echo "$as_me:$LINENO: checking assembler .cfi pseudo-op support" >&5
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echo $ECHO_N "checking assembler .cfi pseudo-op support... $ECHO_C" >&6
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if test "${libffi_cv_as_cfi_pseudo_op+set}" = set; then
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echo $ECHO_N "(cached) $ECHO_C" >&6
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else
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libffi_cv_as_cfi_pseudo_op=unknown
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cat >conftest.$ac_ext <<_ACEOF
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/* confdefs.h. */
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_ACEOF
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cat confdefs.h >>conftest.$ac_ext
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cat >>conftest.$ac_ext <<_ACEOF
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/* end confdefs.h. */
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asm (".cfi_startproc\n\t.cfi_endproc");
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int
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main ()
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{
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;
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return 0;
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}
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_ACEOF
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rm -f conftest.$ac_objext
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if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
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(eval $ac_compile) 2>conftest.er1
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ac_status=$?
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grep -v '^ *+' conftest.er1 >conftest.err
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rm -f conftest.er1
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cat conftest.err >&5
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); } &&
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{ ac_try='test -z "$ac_c_werror_flag"
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|| test ! -s conftest.err'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; } &&
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{ ac_try='test -s conftest.$ac_objext'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; }; then
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libffi_cv_as_cfi_pseudo_op=yes
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else
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echo "$as_me: failed program was:" >&5
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sed 's/^/| /' conftest.$ac_ext >&5
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libffi_cv_as_cfi_pseudo_op=no
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fi
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rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
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fi
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echo "$as_me:$LINENO: result: $libffi_cv_as_cfi_pseudo_op" >&5
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echo "${ECHO_T}$libffi_cv_as_cfi_pseudo_op" >&6
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if test "x$libffi_cv_as_cfi_pseudo_op" = xyes; then
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cat >>confdefs.h <<\_ACEOF
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#define HAVE_AS_CFI_PSEUDO_OP 1
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_ACEOF
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fi
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if test x$TARGET = xSPARC; then
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echo "$as_me:$LINENO: checking assembler and linker support unaligned pc related relocs" >&5
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echo $ECHO_N "checking assembler and linker support unaligned pc related relocs... $ECHO_C" >&6
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@ -201,6 +201,18 @@ AC_SUBST(HAVE_LONG_DOUBLE)
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AC_C_BIGENDIAN
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AC_CACHE_CHECK([assembler .cfi pseudo-op support],
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libffi_cv_as_cfi_pseudo_op, [
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libffi_cv_as_cfi_pseudo_op=unknown
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AC_TRY_COMPILE([asm (".cfi_startproc\n\t.cfi_endproc");],,
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[libffi_cv_as_cfi_pseudo_op=yes],
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[libffi_cv_as_cfi_pseudo_op=no])
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])
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if test "x$libffi_cv_as_cfi_pseudo_op" = xyes; then
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AC_DEFINE(HAVE_AS_CFI_PSEUDO_OP, 1,
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[Define if your assembler supports .cfi_* directives.])
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fi
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if test x$TARGET = xSPARC; then
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AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
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libffi_cv_as_sparc_ua_pcrel, [
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@ -27,6 +27,9 @@
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*/
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#undef HAVE_ALLOCA_H
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/* Define if your assembler supports .cfi_* directives. */
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#undef HAVE_AS_CFI_PSEUDO_OP
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/* Define if your assembler supports .register. */
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#undef HAVE_AS_REGISTER_PSEUDO_OP
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@ -8,6 +8,18 @@
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#include <fficonfig.h>
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#include <ffi.h>
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#ifdef HAVE_AS_CFI_PSEUDO_OP
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#define CFI_STARTPROC() .cfi_startproc
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#define CFI_OFFSET(reg,off) .cfi_offset reg,off
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#define CFI_DEF_CFA(reg,off) .cfi_def_cfa reg,off
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#define CFI_ENDPROC() .cfi_endproc
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#else
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#define CFI_STARTPROC()
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#define CFI_OFFSET(reg,off)
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#define CFI_DEF_CFA(reg,off)
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#define CFI_ENDPROC()
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#endif
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.text
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.globl ffi_call_SYSV
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@ -15,8 +27,12 @@
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.align 4
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ffi_call_SYSV:
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CFI_STARTPROC()
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link %fp,#0
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CFI_OFFSET(14,-8)
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CFI_DEF_CFA(14,8)
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move.l %d2,-(%sp)
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CFI_OFFSET(2,-12)
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| Make room for all of the new args.
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sub.l 12(%fp),%sp
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@ -103,4 +119,5 @@ epilogue:
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move.l (%sp)+,%d2
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unlk %fp
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rts
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CFI_ENDPROC()
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.size ffi_call_SYSV,.-ffi_call_SYSV
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