mt-sde (CFLAGS_FOR_TARGET): Replace -fno-optimize-sibling-calls with -minterlink-mips16.

config/
	* mt-sde (CFLAGS_FOR_TARGET): Replace -fno-optimize-sibling-calls
	with -minterlink-mips16.
	(CXXFLAGS_FOR_TARGET): Likewise.

gcc/
	* config/mips/t-sde (TARGET_LIBGCC2_CFLAGS): Delete.

From-SVN: r128644

4 files changed, 20 insertions, 18 deletions

diff --git a/config/ChangeLog b/config/ChangeLog
index 868e0e86..f3d9fe9 100644
--- a/config/ChangeLog
+++ b/config/ChangeLog
@@ -1,3 +1,9 @@
+2007-09-21  Richard Sandiford  <rsandifo@nildram.co.uk>
+
+	* mt-sde (CFLAGS_FOR_TARGET): Replace -fno-optimize-sibling-calls
+	with -minterlink-mips16.
+	(CXXFLAGS_FOR_TARGET): Likewise.
+
 2007-09-20  Richard Sandiford  <rsandifo@nildram.co.uk>
 
 	* mt-mips-elfoabi: New file.
diff --git a/config/mt-sde b/config/mt-sde
index fbdc081..775e50d 100644
--- a/config/mt-sde
+++ b/config/mt-sde
@@ -1,10 +1,10 @@
-# We default to building libraries optimised for size.  We switch off
-# sibling-call optimization to permit interlinking of MIPS16 and
-# non-MIPS16 functions.  The -mcode-xonly option allows MIPS16 libraries
-# to run on Harvard-style split I/D memories, so long as they have the
-# D-to-I redirect for PC-relative loads.  -mno-gpopt has two purposes:
-# it allows libraries to be used in situations where $gp != our _gp,
-# and it allows them to be built with -G8 while retaining link compability
-# with -G0 and -G4.
-CFLAGS_FOR_TARGET = -Os -fno-optimize-sibling-calls -mcode-xonly -mno-gpopt
-CXXFLAGS_FOR_TARGET = -Os -fno-optimize-sibling-calls -mcode-xonly -mno-gpopt
+# We default to building libraries optimised for size.  We use
+# -minterlink-mips16 so that the non-MIPS16 libraries can still be
+# linked against partly-MIPS16 code.  The -mcode-xonly option allows
+# MIPS16 libraries to run on Harvard-style split I/D memories, so long
+# as they have the D-to-I redirect for PC-relative loads.  -mno-gpopt
+# has two purposes: it allows libraries to be used in situations where
+# $gp != our _gp, and it allows them to be built with -G8 while
+# retaining link compability with -G0 and -G4.
+CFLAGS_FOR_TARGET = -Os -minterlink-mips16 -mcode-xonly -mno-gpopt
+CXXFLAGS_FOR_TARGET = -Os -minterlink-mips16 -mcode-xonly -mno-gpopt
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 1c05e34..d6eeb98 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2007-09-21  Richard Sandiford  <rsandifo@nildram.co.uk>
+
+	* config/mips/t-sde (TARGET_LIBGCC2_CFLAGS): Delete.
+
 2007-09-20  Nigel Stephens  <nigel@mips.com>
 	    Chao-ying Fu  <fu@mips.com>
 
diff --git a/gcc/config/mips/t-sde b/gcc/config/mips/t-sde
index e019cbb..a6d4290 100644
--- a/gcc/config/mips/t-sde
+++ b/gcc/config/mips/t-sde
@@ -10,14 +10,6 @@ $(T)crtn.o: $(srcdir)/config/mips/crtn.asm $(GCC_PASSES)
 	$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(MULTILIB_CFLAGS) $(INCLUDES) \
 	-c -o $(T)crtn.o -x assembler-with-cpp $(srcdir)/config/mips/crtn.asm
 
-# We must build libgcc2.a with -G 0, in case the user wants to link
-# without the $gp register. Use -fno-optimize-sibling-calls in case
-# we have a mixed mips16/non-mips16 environment where a plain "jump"
-# instuction won't work across the divide (no jx instruction).
-# Compile libraries with -mcode-xonly, so that they are link-compatible
-# with both -mcode-readable=pcrel and -mcode-readable=yes.
-TARGET_LIBGCC2_CFLAGS = -G 0 -fno-optimize-sibling-calls -mcode-xonly
-
 MULTILIB_OPTIONS = EL/EB mips32/mips32r2/mips64 mips16 msoft-float/mfp64 mcode-readable=no
 MULTILIB_DIRNAMES = el eb mips32 mips32r2 mips64 mips16 sof f64 spram
 MULTILIB_MATCHES = EL=mel EB=meb