* Make-common.in (DEP, COMMON_DEP_CFLAGS): Define.
(LIB_OBJS): Add syscall.o.
(gentmap): Pass $(NL_TARGET) to $(CC).
(syscall.o): Add rule for.
(sim_main_headers): Add $(SIM_EXTRA_DEPS).
(sim-bits.o): Depend on $(sim-n-bits_h).
(sim-load.o): Depend on callback.h.
* Make-common.in (cgen-*.o): Update dependencies, mem-ops.h renamed to
cgen-mem.h, sem-ops.h renamed to cgen-ops.h.
* cgen-mem.h, cgen-ops.h: New files.
* aclocal.m4 (--enable-sim-scache): Pass -DWITH_SCACHE=0 for "=no".
* Makefile.in (nltvals.def): Depend on gennltvals.sh.
Rewrite build rule.
* callback.c: #include string.h or strings.h.
#include sys/types.h and sys/stat.h.
(cb_init_syscall_map,cb_init_errno_map,cb_init_open_map): Declare.
(enosys): New function.
(os_get_errno,os_open): Update.
(os_stat,os_fstat): New functions.
(os_init): Initialize syscall_map, errno_map, open_map.
(default_callback): Add entries for os_stat, os_fstat, syscall_map,
errno_map, open_map, signal_map, stat_map.
(cb_read_target_syscall_maps): New function.
(cb_target_to_host_syscall): New function.
(cb_host_to_target_errno): Renamed from host_to_target_errno.
(cb_target_to_host_open): Renamed from target_to_host_open.
(store): New function.
(cb_host_to_target_stat): New function.
* gentmap.c (sys_tdefs): New global.
(gen_targ_vals_h): Output target syscall numbers.
(gen_targ_map_c): Update. Output target syscall translation map.
* gentvals.sh: New first argument `target'. Preface table with
#ifdef NL_TARGET_$target if non-null target passed.
* gennltvals.sh: New file.
* nltvals.def: Regenerated.
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