62 lines
2.4 KiB
Diff
62 lines
2.4 KiB
Diff
#
|
|
# Red Hat BZ:
|
|
# https://bugzilla.redhat.com/show_bug.cgi?id=911307
|
|
#
|
|
# Sourceware BZ: None.
|
|
#
|
|
# Upstreamm submission: Not yet completed.
|
|
#
|
|
# ChangeLog
|
|
#
|
|
# 2013-02-27 Carlos O'Donell <carlos@redhat.com>
|
|
#
|
|
# * elf/Makefile (CFLAGS-.o): Add -fno-tree-loop-distribute-patterns.
|
|
# (CFLAGS-.os): Likewise.
|
|
# (CFLAGS-.op): Likewise.
|
|
# (CFLAGS-.ob): Likewise.
|
|
# (CFLAGS-.oS): Likewise.
|
|
# * string/Makefile (CFLAGS-.o): Likewise.
|
|
# (CFLAGS-.os): Likewise.
|
|
# (CFLAGS-.op): Likewise.
|
|
# (CFLAGS-.ob): Likewise.
|
|
# (CFLAGS-.oS): Likewise.
|
|
#
|
|
diff -urN glibc-2.17-c758a686/string/Makefile tmp/glibc-2.17-c758a686/string/Makefile
|
|
--- glibc-2.17-c758a686/string/Makefile 2013-02-27 18:07:34.618968703 -0500
|
|
+++ tmp/glibc-2.17-c758a686/string/Makefile 2013-02-27 18:08:16.075796160 -0500
|
|
@@ -72,6 +72,14 @@ CFLAGS-stratcliff.c = -fno-builtin
|
|
CFLAGS-test-ffs.c = -fno-builtin
|
|
CFLAGS-tst-inlcall.c = -fno-builtin
|
|
|
|
+# Disable any optimization which might result in function calls to the very
|
|
+# same functions we are trying to compile, thus creating an infinite loop.
|
|
+CFLAGS-.o += -fno-tree-loop-distribute-patterns
|
|
+CFLAGS-.os += -fno-tree-loop-distribute-patterns
|
|
+CFLAGS-.op += -fno-tree-loop-distribute-patterns
|
|
+CFLAGS-.ob += -fno-tree-loop-distribute-patterns
|
|
+CFLAGS-.oS += -fno-tree-loop-distribute-patterns
|
|
+
|
|
ifeq ($(run-built-tests),yes)
|
|
tests: $(objpfx)tst-svc-cmp.out
|
|
$(objpfx)tst-svc-cmp.out: tst-svc.expect $(objpfx)tst-svc.out
|
|
diff -urN glibc-2.17-c758a686/elf/Makefile tmp/glibc-2.17-c758a686/elf/Makefile
|
|
--- glibc-2.17-c758a686/elf/Makefile 2013-02-27 18:07:13.812055613 -0500
|
|
+++ tmp/glibc-2.17-c758a686/elf/Makefile 2013-02-27 18:08:16.075796160 -0500
|
|
@@ -432,6 +432,16 @@
|
|
CPPFLAGS-.os += $(if $(filter $(@F),$(patsubst %,%.os,$(all-rtld-routines))),\
|
|
-DNOT_IN_libc=1 -DIS_IN_rtld=1 -DIN_LIB=rtld)
|
|
|
|
+# Disable any optimization which might result in function calls during early
|
|
+# dynamic loader startup. We disable -ftree-loop-distribute-patterns which
|
|
+# might convert code into calls to functions like memcpy or memset when the PLT
|
|
+# is not yet setup.
|
|
+CFLAGS-.o += -fno-tree-loop-distribute-patterns
|
|
+CFLAGS-.os += -fno-tree-loop-distribute-patterns
|
|
+CFLAGS-.op += -fno-tree-loop-distribute-patterns
|
|
+CFLAGS-.ob += -fno-tree-loop-distribute-patterns
|
|
+CFLAGS-.oS += -fno-tree-loop-distribute-patterns
|
|
+
|
|
test-modules = $(addprefix $(objpfx),$(addsuffix .so,$(strip $(modules-names))))
|
|
generated += $(addsuffix .so,$(strip $(modules-names)))
|
|
|