re PR target/31868 (Non-Linux DWARF EH x86-64 targets have broken crtend.o)

2007-08-06  H.J. Lu  <hongjiu.lu@intel.com>
	    Daniel Jacobowitz  <dan@codesourcery.com>

	PR target/31868
	* config.gcc (x86_64-*-freebsd*): Add i386/t-crtstuff to
	tmake_file.
	(x86_64-*-netbsd*): Likewise.
	(x86_64-*-linux*): Likewise.
	(x86_64-*-kfreebsd*-gnu): Likewise.
	(x86_64-*-knetbsd*-gnu): Likewise.
	(i[34567]86-*-solaris2.1[0-9]*): Likewise.

	* config/i386/t-linux64 (CRTSTUFF_T_CFLAGS): Removed.

	* config/i386/t-crtstuff (CRTSTUFF_T_CFLAGS): Update comments.
	Add -fno-asynchronous-unwind-tables.

	* config/t-freebsd (CRTSTUFF_T_CFLAGS_S): Add $(CRTSTUFF_T_CFLAGS).
	* config/t-libc-ok (CRTSTUFF_T_CFLAGS_S): Likewise.
	* config/t-lynx (CRTSTUFF_T_CFLAGS_S): Likewise.
	* config/t-netbsd (CRTSTUFF_T_CFLAGS_S): Likewise.
	* config/t-svr4 (CRTSTUFF_T_CFLAGS_S): Likewise.

Co-Authored-By: Daniel Jacobowitz <dan@codesourcery.com>

From-SVN: r127248

7 files changed, 11 insertions, 12 deletions

diff --git a/gcc/config/i386/t-crtstuff b/gcc/config/i386/t-crtstuff
index a202df6..8fe5875 100644
--- a/gcc/config/i386/t-crtstuff
+++ b/gcc/config/i386/t-crtstuff
@@ -1,2 +1,7 @@
 # The pushl in CTOR initialization interferes with frame pointer elimination.
-CRTSTUFF_T_CFLAGS = -fno-omit-frame-pointer
+# crtend*.o cannot be compiled without -fno-asynchronous-unwind-tables,
+# because then __FRAME_END__ might not be the last thing in .eh_frame
+# section.  -fno-asynchronous-unwind-tables is off by default for i386
+# and is on by default for x86-64.  We turn it off for both i386 and
+# x86-64.
+CRTSTUFF_T_CFLAGS = -fno-omit-frame-pointer -fno-asynchronous-unwind-tables
diff --git a/gcc/config/i386/t-linux64 b/gcc/config/i386/t-linux64
index 7aa1b81..0a70cd9 100644
--- a/gcc/config/i386/t-linux64
+++ b/gcc/config/i386/t-linux64
@@ -17,9 +17,3 @@ EXTRA_MULTILIB_PARTS=crtbegin.o crtend.o crtbeginS.o crtendS.o \
 
 softfp_wrap_start := '\#ifdef __x86_64__'
 softfp_wrap_end := '\#endif'
-
-# The pushl in CTOR initialization interferes with frame pointer elimination.
-# crtend*.o cannot be compiled without -fno-asynchronous-unwind-tables,
-# because then __FRAME_END__ might not be the last thing in .eh_frame
-# section.
-CRTSTUFF_T_CFLAGS = -fno-omit-frame-pointer -fno-asynchronous-unwind-tables
diff --git a/gcc/config/t-freebsd b/gcc/config/t-freebsd
index 211dbdf..0680618 100644
--- a/gcc/config/t-freebsd
+++ b/gcc/config/t-freebsd
@@ -1,5 +1,5 @@
 # Compile crtbeginS.o and crtendS.o with pic.
-CRTSTUFF_T_CFLAGS_S = -fPIC
+CRTSTUFF_T_CFLAGS_S = $(CRTSTUFF_T_CFLAGS) -fPIC
 
 # Compile libgcc.a with pic.
 TARGET_LIBGCC2_CFLAGS += -fPIC
diff --git a/gcc/config/t-libc-ok b/gcc/config/t-libc-ok
index 4dae812..561ee0b 100644
--- a/gcc/config/t-libc-ok
+++ b/gcc/config/t-libc-ok
@@ -1 +1 @@
-CRTSTUFF_T_CFLAGS_S=-fPIC
+CRTSTUFF_T_CFLAGS_S = $(CRTSTUFF_T_CFLAGS) -fPIC
diff --git a/gcc/config/t-lynx b/gcc/config/t-lynx
index a14a53c..3a6a5d8 100644
--- a/gcc/config/t-lynx
+++ b/gcc/config/t-lynx
@@ -1,5 +1,5 @@
 # Compile crtbeginS.o and crtendS.o with pic.
-CRTSTUFF_T_CFLAGS_S = -fPIC
+CRTSTUFF_T_CFLAGS_S = $(CRTSTUFF_T_CFLAGS) -fPIC
 
 # Compile libgcc2.a with pic.
 TARGET_LIBGCC2_CFLAGS = -fPIC
diff --git a/gcc/config/t-netbsd b/gcc/config/t-netbsd
index 843e410..34949e1 100644
--- a/gcc/config/t-netbsd
+++ b/gcc/config/t-netbsd
@@ -1,2 +1,2 @@
 # Always build crtstuff with PIC.
-CRTSTUFF_T_CFLAGS = -fPIC
+CRTSTUFF_T_CFLAGS_S = $(CRTSTUFF_T_CFLAGS) -fPIC
diff --git a/gcc/config/t-svr4 b/gcc/config/t-svr4
index 52c9b28..3ea1174 100644
--- a/gcc/config/t-svr4
+++ b/gcc/config/t-svr4
@@ -4,7 +4,7 @@
 # we will be doing that, we just always use -fPIC when compiling the
 # routines in crtstuff.c.  Likewise for libgcc2.c.
 
-CRTSTUFF_T_CFLAGS = -fPIC
+CRTSTUFF_T_CFLAGS_S = $(CRTSTUFF_T_CFLAGS) -fPIC
 TARGET_LIBGCC2_CFLAGS = -fPIC
 
 # See all the declarations.