1 files changed, 103 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/i386/Makefile b/REORG.TODO/sysdeps/i386/Makefile
new file mode 100644
index 0000000000..e30e1339f0
--- /dev/null
+++ b/REORG.TODO/sysdeps/i386/Makefile
@@ -0,0 +1,103 @@
+# The mpn functions need a #define for asm syntax flavor.
+# Every i386 port in use uses gas syntax (I think).
+asm-CPPFLAGS += -DGAS_SYNTAX
+
+# The i386 `long double' is a distinct type we support.
+long-double-fcts = yes
+
+ifeq ($(subdir),string)
+sysdep_routines += cacheinfo
+endif
+
+ifeq ($(subdir),gmon)
+sysdep_routines += i386-mcount
+endif
+
+ifeq ($(subdir),elf)
+CFLAGS-rtld.c += -Wno-uninitialized -Wno-unused
+CFLAGS-dl-load.c += -Wno-unused
+CFLAGS-dl-reloc.c += -Wno-unused
+endif
+
+ifeq ($(subdir),debug)
+CFLAGS-backtrace.c += -fexceptions
+endif
+
+# Most of the glibc routines don't ever call user defined callbacks
+# nor use any FPU or SSE* and as such don't need bigger %esp alignment
+# than 4 bytes.
+# Lots of routines in math will use FPU, so make math subdir an exception
+# here.
+# In gcc 4.6 (and maybe earlier?) giving -mpreferred-stack-boundary=2 is
+# an error, so don't try to reduce it here like we used to.  We still
+# explicit set -mpreferred-stack-boundary=4 the places where it matters,
+# in case an older compiler defaulted to 2.
+ifeq ($(subdir),math)
+sysdep-CFLAGS += -mpreferred-stack-boundary=4
+else
+ifeq ($(subdir),csu)
+sysdep-CFLAGS += -mpreferred-stack-boundary=4
+gen-as-const-headers += link-defines.sym
+else
+# Likewise, any function which calls user callbacks
+uses-callbacks += -mpreferred-stack-boundary=4
+# Likewise, any stack alignment tests
+stack-align-test-flags += -malign-double -mpreferred-stack-boundary=4
+endif
+endif
+
+# And a couple of other routines
+ifeq ($(subdir),stdlib)
+CFLAGS-exit.c += -mpreferred-stack-boundary=4
+CFLAGS-cxa_finalize.c += -mpreferred-stack-boundary=4
+endif
+ifeq ($(subdir),elf)
+CFLAGS-dl-init.c += -mpreferred-stack-boundary=4
+CFLAGS-dl-fini.c += -mpreferred-stack-boundary=4
+CFLAGS-dl-open.c += -mpreferred-stack-boundary=4
+CFLAGS-dl-close.c += -mpreferred-stack-boundary=4
+CFLAGS-dl-error.c += -mpreferred-stack-boundary=4
+endif
+ifeq ($(subdir),dlfcn)
+CFLAGS-dlopen.c += -mpreferred-stack-boundary=4
+CFLAGS-dlopenold.c += -mpreferred-stack-boundary=4
+CFLAGS-dlclose.c += -mpreferred-stack-boundary=4
+CFLAGS-dlerror.c += -mpreferred-stack-boundary=4
+endif
+
+ifneq (,$(filter -mno-tls-direct-seg-refs,$(CFLAGS)))
+defines += -DNO_TLS_DIRECT_SEG_REFS
+endif
+
+ifeq ($(subdir),elf)
+sysdep-dl-routines += tlsdesc dl-tlsdesc
+
+tests += tst-audit3
+modules-names += tst-auditmod3a tst-auditmod3b
+
+$(objpfx)tst-audit3: $(objpfx)tst-auditmod3a.so
+$(objpfx)tst-audit3.out: $(objpfx)tst-auditmod3b.so
+tst-audit3-ENV = LD_AUDIT=$(objpfx)tst-auditmod3b.so
+endif
+
+ifeq ($(subdir),csu)
+gen-as-const-headers += tlsdesc.sym
+endif
+
+# Make sure no code in ld.so uses mm/xmm/ymm/zmm registers on i386 since
+# the first 3 mm/xmm/ymm/zmm registers are used to pass vector parameters
+# which must be preserved.
+# With SSE disabled, ensure -fpmath is not set to use sse either.
+rtld-CFLAGS += -mno-sse -mno-mmx -mfpmath=387
+ifeq ($(subdir),elf)
+CFLAGS-.os += $(if $(filter $(@F),$(patsubst %,%.os,$(all-rtld-routines))),\
+		   $(rtld-CFLAGS))
+
+tests-special += $(objpfx)tst-ld-sse-use.out
+$(objpfx)tst-ld-sse-use.out: ../sysdeps/i386/tst-ld-sse-use.sh $(objpfx)ld.so
+	@echo "Checking ld.so for SSE register use.  This will take a few seconds..."
+	$(BASH) $< $(objpfx) '$(NM)' '$(OBJDUMP)' '$(READELF)' > $@; \
+	$(evaluate-test)
+else
+CFLAGS-.os += $(if $(filter rtld-%.os,$(@F)), $(rtld-CFLAGS))
+endif