Prepare for radical source tree reorganization. zack/build-layout-experiment

All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).

1 files changed, 51 insertions, 0 deletions

diff --git a/REORG.TODO/sysdeps/powerpc/ifunc-sel.h b/REORG.TODO/sysdeps/powerpc/ifunc-sel.h
new file mode 100644
index 0000000000..bdb00bf2c6
--- /dev/null
+++ b/REORG.TODO/sysdeps/powerpc/ifunc-sel.h
@@ -0,0 +1,51 @@
+/* Used by the elf ifunc tests.  */
+#ifndef ELF_IFUNC_SEL_H
+#define ELF_IFUNC_SEL_H 1
+
+extern int global;
+
+static inline void *
+inhibit_stack_protector
+ifunc_sel (int (*f1) (void), int (*f2) (void), int (*f3) (void))
+{
+  register void *ret __asm__ ("r3");
+  __asm__ ("mflr 12\n\t"
+	   "bcl 20,31,1f\n"
+	   "1:\tmflr 11\n\t"
+	   "mtlr 12\n\t"
+	   "addis 12,11,global-1b@ha\n\t"
+	   "lwz 12,global-1b@l(12)\n\t"
+	   "addis %0,11,%2-1b@ha\n\t"
+	   "addi %0,%0,%2-1b@l\n\t"
+	   "cmpwi 12,1\n\t"
+	   "beq 2f\n\t"
+	   "addis %0,11,%3-1b@ha\n\t"
+	   "addi %0,%0,%3-1b@l\n\t"
+	   "cmpwi 12,-1\n\t"
+	   "beq 2f\n\t"
+	   "addis %0,11,%4-1b@ha\n\t"
+	   "addi %0,%0,%4-1b@l\n\t"
+	   "2:"
+	   : "=r" (ret)
+	   : "i" (&global), "i" (f1), "i" (f2), "i" (f3)
+	   : "11", "12", "cr0");
+  return ret;
+}
+
+static inline void *
+inhibit_stack_protector
+ifunc_one (int (*f1) (void))
+{
+  register void *ret __asm__ ("r3");
+  __asm__ ("mflr 12\n\t"
+	   "bcl 20,31,1f\n"
+	   "1:\tmflr %0\n\t"
+	   "mtlr 12\n\t"
+	   "addis %0,%0,%1-1b@ha\n\t"
+	   "addi %0,%0,%1-1b@l"
+	   : "=r" (ret)
+	   : "i" (f1)
+	   : "12");
+  return ret;
+}
+#endif