From: "Joseph S. Myers" <jos...@codesourcery.com>
Date: Thu, 3 Nov 2011 01:21:35 +0000 (UTC)
> What is new is that you can now put tests in libgcc/configure.ac
> such as the "Check 32bit or 64bit for x86." one, and select t-*
> files based on those tests - whereas in the gcc/ directory there is
> no possibility at all for the choice of t-* files to depend on the
> multilib.
That works for me, I'm bootstrapping the following:
--------------------
[PATCH] Fix multilib build of libgcc on Linux/sparc.
* configure.ac: Set host_address on sparc too.
* configure: Regenerate.
* config.host: Add sparc/t-linux64 and sparc/t-softmul conditionally
based upon host_address.
* config/sparc/t-linux64: Set CRTSTUFF_T_CFLAGS unconditionally.
---
libgcc/ChangeLog | 8 ++++++++
libgcc/config.host | 17 ++++++++++++++---
libgcc/config/sparc/t-linux64 | 3 +--
libgcc/configure | 7 ++++---
libgcc/configure.ac | 7 ++++---
5 files changed, 31 insertions(+), 11 deletions(-)
diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index 1bbe29a..3944193 100644
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,3 +1,11 @@
+2011-11-02 David S. Miller <da...@davemloft.net>
+
+ * configure.ac: Set host_address on sparc too.
+ * configure: Regenerate.
+ * config.host: Add sparc/t-linux64 and sparc/t-softmul conditionally
+ based upon host_address.
+ * config/sparc/t-linux64: Set CRTSTUFF_T_CFLAGS unconditionally.
+
2011-11-02 Rainer Orth <r...@cebitec.uni-bielefeld.de>
* gthr-single.h, gthr.h: New files.
diff --git a/libgcc/config.host b/libgcc/config.host
index 05f084b..647c6a1 100644
--- a/libgcc/config.host
+++ b/libgcc/config.host
@@ -1008,7 +1008,10 @@ sparc-*-elf*)
extra_parts="$extra_parts crti.o crtn.o crtfastmath.o"
;;
sparc-*-linux*) # SPARC's running GNU/Linux, libc6
- tmake_file="${tmake_file} t-crtfm sparc/t-linux64"
+ tmake_file="${tmake_file} t-crtfm"
+ if test "${host_address}" = 64; then
+ tmake_file="$tmake_file sparc/t-linux64"
+ fi
case ${host} in
*-leon*)
tmake_file="${tmake_file} t-fdpbit"
@@ -1021,7 +1024,9 @@ sparc-*-linux*) # SPARC's running GNU/Linux,
libc6
*-leon[3-9]*)
;;
*)
- tmake_file="$tmake_file sparc/t-softmul"
+ if test "${host_address}" = 32; then
+ tmake_file="$tmake_file sparc/t-softmul"
+ fi
;;
esac
extra_parts="$extra_parts crtfastmath.o"
@@ -1052,7 +1057,13 @@ sparc64-*-freebsd*|ultrasparc-*-freebsd*)
;;
sparc64-*-linux*) # 64-bit SPARC's running GNU/Linux
extra_parts="$extra_parts crtfastmath.o"
- tmake_file="${tmake_file} t-crtfm sparc/t-linux sparc/t-linux64"
+ tmake_file="${tmake_file} t-crtfm sparc/t-linux"
+ if test "${host_address}" = 64; then
+ tmake_file="${tmake_file} sparc/t-linux64"
+ fi
+ if test "${host_address}" = 32; then
+ tmake_file="${tmake_file} sparc/t-softmul"
+ fi
md_unwind_header=sparc/linux-unwind.h
;;
sparc64-*-netbsd*)
diff --git a/libgcc/config/sparc/t-linux64 b/libgcc/config/sparc/t-linux64
index ca4a892..6583fe2 100644
--- a/libgcc/config/sparc/t-linux64
+++ b/libgcc/config/sparc/t-linux64
@@ -1,2 +1 @@
-CRTSTUFF_T_CFLAGS = `if test x$$($(CC) -print-multi-os-directory) \
- = x../lib64; then echo -mcmodel=medany; fi`
+CRTSTUFF_T_CFLAGS = -mcmodel=medany
diff --git a/libgcc/configure b/libgcc/configure
index 0d91645..0f18037 100644
--- a/libgcc/configure
+++ b/libgcc/configure
@@ -4609,11 +4609,12 @@ fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libgcc_cv_cfi" >&5
$as_echo "$libgcc_cv_cfi" >&6; }
-# Check 32bit or 64bit for x86.
+# Check 32bit or 64bit for x86 and sparc.
case ${host} in
-i?86*-*-* | x86_64*-*-*)
+i?86*-*-* | x86_64*-*-* | sparc*-*-*)
cat > conftest.c <<EOF
-#ifdef __x86_64__
+#if defined(__x86_64__) || \
+ (defined(__sparc__) && defined(__arch64__))
host_address=64
#else
host_address=32
diff --git a/libgcc/configure.ac b/libgcc/configure.ac
index a505257..5250be3 100644
--- a/libgcc/configure.ac
+++ b/libgcc/configure.ac
@@ -255,11 +255,12 @@ AC_CACHE_CHECK([whether assembler supports CFI
directives], [libgcc_cv_cfi],
[libgcc_cv_cfi=yes],
[libgcc_cv_cfi=no])])
-# Check 32bit or 64bit for x86.
+# Check 32bit or 64bit for x86 and sparc.
case ${host} in
-i?86*-*-* | x86_64*-*-*)
+i?86*-*-* | x86_64*-*-* | sparc*-*-*)
cat > conftest.c <<EOF
-#ifdef __x86_64__
+#if defined(__x86_64__) || \
+ (defined(__sparc__) && defined(__arch64__))
host_address=64
#else
host_address=32
--
1.7.6.401.g6a319
