csu: Reformat Makefile.

Reflow and sort Makefile.

Code generation changes present due to link order changes.

No regressions on x86_64 and i686.

csu/Makefile

@@ -26,20 +26,36 @@ subdir := csu
 
 include ../Makeconfig
 
-routines = init-first libc-start $(libc-init) sysdep version check_fds \
-	   libc-tls dso_handle
+routines = \
+  $(libc-init) \
+  check_fds \
+  dso_handle \
+  init-first \
+  libc-start \
+  libc-tls \
+  sysdep \
+  version \
+  # routines
 aux	 = errno
 elide-routines.os = libc-tls
 csu-dummies = $(filter-out $(start-installed-name),crt1.o Mcrt1.o)
-extra-objs = start.o \
-	     $(start-installed-name) g$(start-installed-name) $(csu-dummies) \
-	     S$(start-installed-name)
+extra-objs = \
+  $(csu-dummies) \
+  $(start-installed-name) \
+  S$(start-installed-name) \
+  g$(start-installed-name) \
+  start.o \
+  # extra-objs
 omit-deps = $(patsubst %.o,%,$(start-installed-name) g$(start-installed-name) \
 			     b$(start-installed-name) $(csu-dummies) \
 			     S$(start-installed-name) \
 			     r$(start-installed-name) \
 			     gr$(start-installed-name))
-install-lib = $(start-installed-name) g$(start-installed-name) $(csu-dummies)
+install-lib = \
+  $(csu-dummies) \
+  $(start-installed-name) \
+  g$(start-installed-name) \
+  # install-lib
 
 # No tests are allowed in the csu/ subdirectory because the startup
 # code is compiled with special flags.
@@ -67,7 +83,10 @@ CFLAGS-.os += $(call elide-stack-protector,.os,$(filter-out \
 						 $(routines) $(extra-no-ssp)))
 
 ifeq (yes,$(build-shared))
-extra-objs += S$(start-installed-name) gmon-start.os
+extra-objs += \
+  S$(start-installed-name) \
+  gmon-start.os \
+  # extra-objs
 ifneq ($(start-installed-name),$(static-start-installed-name))
 extra-objs += gmon-start.o
 endif
@@ -78,20 +97,38 @@ extra-objs += gmon-start.o
 endif
 
 ifeq (yes,$(enable-static-pie))
-extra-objs += r$(start-installed-name) gr$(start-installed-name)
-install-lib += r$(start-installed-name) gr$(start-installed-name)
+extra-objs += \
+  gr$(start-installed-name) \
+  r$(start-installed-name) \
+  # extra-objs
+install-lib += \
+  gr$(start-installed-name) \
+  r$(start-installed-name) \
+  # install-lib
 endif
 
 ifneq ($(start-installed-name),$(static-start-installed-name))
-extra-objs += $(static-start-installed-name) g$(static-start-installed-name)
+extra-objs += \
+  $(static-start-installed-name) \
+  g$(static-start-installed-name) \
+  # extra-objs
 omit-deps += $(patsubst %.o,%,$(static-start-installed-name) \
 			     g$(static-start-installed-name))
-install-lib += $(static-start-installed-name) g$(static-start-installed-name)
+install-lib += \
+  $(static-start-installed-name) \
+  g$(static-start-installed-name) \
+  # install-lib
 ifeq (yes,$(enable-static-pie))
-extra-objs += r$(static-start-installed-name) gr$(static-start-installed-name)
+extra-objs += \
+  gr$(static-start-installed-name) \
+  r$(static-start-installed-name) \
+  # extra-objs
 omit-deps += $(patsubst %.o,%,r$(static-start-installed-name) \
 			     gr$(static-start-installed-name))
-install-lib += r$(static-start-installed-name) gr$(static-start-installed-name)
+install-lib += \
+  gr$(static-start-installed-name) \
+  r$(static-start-installed-name) \
+  # install-lib
 endif
 endif
 
@@ -104,7 +141,10 @@ gen-as-const-headers += rtld-sizes.sym
 # These are the special initializer/finalizer files.  They are always the
 # first and last file in the link.  crti.o ... crtn.o define the global
 # "functions" _init and _fini to run the .init and .fini sections.
-crtstuff = crti crtn
+crtstuff = \
+  crti \
+  crtn \
+  # crtstuff
 
 install-lib += $(crtstuff:=.o)
 extra-objs += $(crtstuff:=.o)
@@ -114,7 +154,11 @@ multilib-extra-objs = $(addprefix $(multidir)/, $(install-lib))
 extra-objs += $(multilib-extra-objs)
 endif
 
-extra-objs += abi-note.o init.o static-reloc.o
+extra-objs += \
+  abi-note.o \
+  init.o \
+  static-reloc.o \
+  # extra-objs
 ifeq (yes,$(build-shared))
 extra-objs += static-reloc.os
 endif