On 02/17/2015 05:40 PM, Jakub Jelinek wrote:
On Tue, Feb 17, 2015 at 04:21:06PM +0000, Joseph Myers wrote:
On Tue, 17 Feb 2015, Jakub Jelinek wrote:
Third attempt failed with:
../../../libgcc/config/nvptx/realloc.c:24:20: fatal error: stdlib.h: No such
file or directory
compilation terminated.
../../../libgcc/static-object.mk:17: recipe for target 'realloc.o' failed
make[2]: *** [realloc.o] Error 1
make[2]: *** Waiting for unfinished jobs....
make[2]: Leaving directory '/usr/src/gcc/objnvptx/nvptx-none/libgcc'
I have nvptx-newlib symlinked into the gcc tree as newlib, so I expected it
would be built in-tree, is that not the case (at least wiki/Offloading
mentions that). Or is it just that libgcc can't really have dependencies on
newlib headers as newlib is built after libgcc?
I've committed this patch to fix this last issue (the header dependence,
that is; I don't know about the in-tree build).
Thanks, sure, libgcc now builds fine, the in-tree build fails:
configure:4261: checking for C compiler default output file name
configure:4283: /usr/src/gcc/objnvptx/./gcc/xgcc -B/usr/src/gcc/objnvptx/./gcc/
-nostdinc -B/usr/src/gcc/objnvptx/nvptx-none/newlib/ -isystem
/usr/src/gcc/objnvptx/nvptx-none/newlib/targ-include -isystem
/usr/src/gcc/newlib/libc/include -B/usr/local/nvptx-none/bin/
-B/usr/local/nvptx-none/lib/ -isystem /usr/local/nvptx-none/include -isystem
/usr/local/nvptx-none/sys-include -g -O2 conftest.c >&5
error opening libc.a
collect2: error: ld returned 1 exit status
very early during in-tree newlib configure.
Not a fix for your problem, but there's a similar issue when trying to
get at the libgcc for the nvptx accel compiler after it's been
installed. The libgcc Makefile puts it in the wrong place -
gcc/nvptx-none/accel/nvptx-none instead of gcc/host/accel/nvptx-none.
The patch below corrects that and removes an intelmicemul special case
which I believe has the same effect - Ilya, could you test this?
Bernd
Index: libgcc/Makefile.in
===================================================================
--- libgcc/Makefile.in (revision 445788)
+++ libgcc/Makefile.in (working copy)
@@ -45,6 +45,7 @@ fixed_point = @fixed_point@
with_aix_soname = @with_aix_soname@
host_noncanonical = @host_noncanonical@
+real_host_noncanonical = @real_host_noncanonical@
target_noncanonical = @target_noncanonical@
# List of extra object files that should be compiled for this target machine.
@@ -185,7 +186,7 @@ STRIP = @STRIP@
STRIP_FOR_TARGET = $(STRIP)
# Directory in which the compiler finds libraries etc.
-libsubdir = $(libdir)/gcc/$(host_noncanonical)/$(version)@accel_dir_suffix@
+libsubdir = $(libdir)/gcc/$(real_host_noncanonical)/$(version)@accel_dir_suffix@
# Used to install the shared libgcc.
slibdir = @slibdir@
# Maybe used for DLLs on Windows targets.
Index: libgcc/configure.ac
===================================================================
--- libgcc/configure.ac (revision 445788)
+++ libgcc/configure.ac (working copy)
@@ -398,16 +398,14 @@ esac
# Used for constructing correct paths for offload compilers.
accel_dir_suffix=
+real_host_noncanonical=${host_noncanonical}
+echo "eaaf: $enable_as_accelerator_for"
if test x"$enable_as_accelerator_for" != x; then
accel_dir_suffix=/accel/${target_noncanonical}
- case "${target_noncanonical}" in
- *-intelmicemul-*)
- # In this case we expect offload compiler to be built as native, so we
- # need to change install directory for driver to be able to find libgcc.
- host_noncanonical=${enable_as_accelerator_for} ;;
- esac
+ real_host_noncanonical=${enable_as_accelerator_for}
fi
AC_SUBST(accel_dir_suffix)
+AC_SUBST(real_host_noncanonical)
if test x"$enable_offload_targets" != x; then
extra_parts="${extra_parts} crtoffloadbegin.o crtoffloadend.o"
Index: libgcc/configure
===================================================================
--- libgcc/configure (revision 445788)
+++ libgcc/configure (working copy)
@@ -566,6 +566,7 @@ sfp_machine_header
set_use_emutls
set_have_cc_tls
vis_hide
+real_host_noncanonical
accel_dir_suffix
force_explicit_eh_registry
fixed_point
@@ -4482,17 +4483,15 @@ esac
# Used for constructing correct paths for offload compilers.
accel_dir_suffix=
+real_host_noncanonical=${host_noncanonical}
+echo "eaaf: $enable_as_accelerator_for"
if test x"$enable_as_accelerator_for" != x; then
accel_dir_suffix=/accel/${target_noncanonical}
- case "${target_noncanonical}" in
- *-intelmicemul-*)
- # In this case we expect offload compiler to be built as native, so we
- # need to change install directory for driver to be able to find libgcc.
- host_noncanonical=${enable_as_accelerator_for} ;;
- esac
+ real_host_noncanonical=${enable_as_accelerator_for}
fi
+
if test x"$enable_offload_targets" != x; then
extra_parts="${extra_parts} crtoffloadbegin.o crtoffloadend.o"
fi
