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-rw-r--r--REORG.TODO/sysdeps/tile/tilegx/Makefile35
1 files changed, 35 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/tile/tilegx/Makefile b/REORG.TODO/sysdeps/tile/tilegx/Makefile
new file mode 100644
index 0000000000..4281dd98fc
--- /dev/null
+++ b/REORG.TODO/sysdeps/tile/tilegx/Makefile
@@ -0,0 +1,35 @@
+include $(common-objpfx)cflags-mcmodel-large.mk
+
+# Check for gcc to support the command-line switch, and for
+# binutils to support the hwN_plt() assembly operators and relocations.
+$(common-objpfx)cflags-mcmodel-large.mk: $(common-objpfx)config.make
+	mcmodel=no; \
+	(echo 'int main() { return getuid(); }' | \
+	 $(CC) -o /dev/null -xc - -mcmodel=large -fpic) && mcmodel=yes; \
+	echo "cflags-mcmodel-large = $$mcmodel" > $@
+
+ifeq (yes,$(cflags-mcmodel-large))
+
+ifeq ($(subdir),csu)
+# elf-init.c is in libc_nonshared.o (the end of the shared object) but
+# must reach the _init symbol at the very start of the shared object.
+CFLAGS-elf-init.c += -mcmodel=large
+
+# __gmon_start__ is at the very start of the shared object when linked
+# with profiling, but calls to libc.so via the PLT at the very end.
+CFLAGS-gmon-start.c += -mcmodel=large
+endif
+
+else
+
+# Don't try to compile assembly code with hwN_plt() directives if the
+# toolchain doesn't support -mcmodel=large.
+ifeq ($(subdir),csu)
+CPPFLAGS-start.S += -DNO_PLT_PCREL
+CPPFLAGS-crti.S += -DNO_PLT_PCREL
+endif
+ifeq ($(subdir),nptl)
+CPPFLAGS-pt-crti.S += -DNO_PLT_PCREL
+endif
+
+endif