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      1 # Out-of-line LSE atomics for AArch64 architecture.
      2 # Copyright (C) 2019-2024 Free Software Foundation, Inc.
      3 # Contributed by Linaro Ltd.
      4 #
      5 # This file is part of GCC.
      6 #
      7 # GCC is free software; you can redistribute it and/or modify it
      8 # under the terms of the GNU General Public License as published by
      9 # the Free Software Foundation; either version 3, or (at your option)
     10 # any later version.
     11 #
     12 # GCC is distributed in the hope that it will be useful, but
     13 # WITHOUT ANY WARRANTY; without even the implied warranty of
     14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     15 # General Public License for more details.
     16 #
     17 # You should have received a copy of the GNU General Public License
     18 # along with GCC; see the file COPYING3.  If not see
     19 # <http://www.gnu.org/licenses/>.
     20 
     21 # Compare-and-swap has 5 sizes and 5 memory models.
     22 S0 := $(foreach s, 1 2 4 8 16, $(addsuffix _$(s), cas))
     23 O0 := $(foreach m, 1 2 3 4 5, $(addsuffix _$(m)$(objext), $(S0)))
     24 
     25 # Swap, Load-and-operate have 4 sizes and 5 memory models
     26 S1 := $(foreach s, 1 2 4 8, $(addsuffix _$(s), swp ldadd ldclr ldeor ldset))
     27 O1 := $(foreach m, 1 2 3 4 5, $(addsuffix _$(m)$(objext), $(S1)))
     28 
     29 LSE_OBJS := $(O0) $(O1)
     30 
     31 libgcc-objects += $(LSE_OBJS) lse-init$(objext)
     32 
     33 empty      =
     34 space      = $(empty) $(empty)
     35 PAT_SPLIT  = $(subst _,$(space),$(*F))
     36 PAT_BASE   = $(word 1,$(PAT_SPLIT))
     37 PAT_N      = $(word 2,$(PAT_SPLIT))
     38 PAT_M      = $(word 3,$(PAT_SPLIT))
     39 
     40 lse-init$(objext): $(srcdir)/config/aarch64/lse-init.c
     41 	$(gcc_compile) -c $<
     42 
     43 $(LSE_OBJS): $(srcdir)/config/aarch64/lse.S
     44 	$(gcc_compile) -DL_$(PAT_BASE) -DSIZE=$(PAT_N) -DMODEL=$(PAT_M) -c $<
     45