mirror of
https://sourceware.org/git/binutils-gdb.git
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bf470982f9
We've had this off for a long time because the sim code was way too full of warnings for it to be feasible. However, I've cleaned things up significantly from when this was first merged, and we can start to turn this around. Change the macro to enable -Werror by default, and allow ports to opt out. New ports will get it automatically (and we can push back on them if they try to turn it off). Also turn it off for the few ports that still hit warnings for me. All the rest will get the new default, and we'll wait for feedback if/when new issues come up.
457 lines
14 KiB
Plaintext
457 lines
14 KiB
Plaintext
dnl Process this file with autoconf to produce a configure script.
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AC_INIT(Makefile.in)
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sinclude(../common/acinclude.m4)
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SIM_AC_COMMON
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dnl Options available in this module
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SIM_AC_OPTION_ALIGNMENT(NONSTRICT_ALIGNMENT)
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SIM_AC_OPTION_WARNINGS(no)
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SIM_AC_OPTION_RESERVED_BITS(1)
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# DEPRECATED
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#
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# Instead of defining a `subtarget' macro, code should be checking
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# the value of {STATE,CPU}_ARCHITECTURE to identify the architecture
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# in question.
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#
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case "${target}" in
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mips64vr*-*-*) SIM_SUBTARGET="-DTARGET_ENABLE_FR=1" ;;
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mips*tx39*) SIM_SUBTARGET="-DSUBTARGET_R3900=1";;
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mips*-sde-elf*) SIM_SUBTARGET="-DTARGET_ENABLE_FR=1";;
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mips*-mti-elf*) SIM_SUBTARGET="-DTARGET_ENABLE_FR=1";;
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mipsisa32*-*-*) SIM_SUBTARGET="-DTARGET_ENABLE_FR=1";;
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mipsisa64*-*-*) SIM_SUBTARGET="-DTARGET_ENABLE_FR=1";;
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*) SIM_SUBTARGET="";;
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esac
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AC_SUBST(SIM_SUBTARGET)
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#
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# Select the byte order of the target
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#
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mips_endian=
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default_endian=
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case "${target}" in
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mips64el*-*-*) mips_endian=LITTLE ;;
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mips64vr*el-*-*) default_endian=LITTLE ;;
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mips64*-*-*) default_endian=BIG ;;
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mips16*-*-*) default_endian=BIG ;;
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mipsisa32*-*-*) default_endian=BIG ;;
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mipsisa64*-*-*) default_endian=BIG ;;
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mips*-*-*) default_endian=BIG ;;
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*) default_endian=BIG ;;
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esac
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SIM_AC_OPTION_ENDIAN($mips_endian,$default_endian)
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#
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# Select the bitsize of the target
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#
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mips_addr_bitsize=
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case "${target}" in
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mips*-sde-elf*) mips_bitsize=64 ; mips_msb=63 ;;
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mips*-mti-elf*) mips_bitsize=64 ; mips_msb=63 ;;
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mips64*-*-*) mips_bitsize=64 ; mips_msb=63 ;;
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mips16*-*-*) mips_bitsize=64 ; mips_msb=63 ;;
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mipsisa32*-*-*) mips_bitsize=32 ; mips_msb=31 ;;
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mipsisa64*-*-*) mips_bitsize=64 ; mips_msb=63 ;;
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mips*-*-*) mips_bitsize=32 ; mips_msb=31 ;;
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*) mips_bitsize=64 ; mips_msb=63 ;;
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esac
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SIM_AC_OPTION_BITSIZE($mips_bitsize,$mips_msb,$mips_addr_bitsize)
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#
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# Select the floating hardware support of the target
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#
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mips_fpu=HARDWARE_FLOATING_POINT
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mips_fpu_bitsize=
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case "${target}" in
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mips*tx39*) mips_fpu=HARD_FLOATING_POINT ; mips_fpu_bitsize=32 ;;
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mips*-sde-elf*) mips_fpu=HARD_FLOATING_POINT ; mips_fpu_bitsize=64 ;;
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mips*-mti-elf*) mips_fpu=HARD_FLOATING_POINT ; mips_fpu_bitsize=64 ;;
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mips64*-*-*) mips_fpu=HARD_FLOATING_POINT ;;
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mips16*-*-*) mips_fpu=HARD_FLOATING_POINT ;;
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mipsisa32*-*-*) mips_fpu=HARD_FLOATING_POINT ; mips_fpu_bitsize=64 ;;
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mipsisa64*-*-*) mips_fpu=HARD_FLOATING_POINT ; mips_fpu_bitsize=64 ;;
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mips*-*-*) mips_fpu=HARD_FLOATING_POINT ; mips_fpu_bitsize=32 ;;
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*) mips_fpu=HARD_FLOATING_POINT ;;
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esac
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SIM_AC_OPTION_FLOAT($mips_fpu,$mips_fpu_bitsize)
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#
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# Select the IGEN architecture
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#
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sim_gen=IGEN
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sim_igen_machine="-M mipsIV"
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sim_m16_machine="-M mips16,mipsIII"
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sim_igen_filter="32,64,f"
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sim_m16_filter="16"
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sim_mach_default="mips8000"
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case "${target}" in
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mips*tx39*) sim_gen=IGEN
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sim_igen_filter="32,f"
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sim_igen_machine="-M r3900"
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;;
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mips64vr43*-*-*) sim_gen=IGEN
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sim_igen_machine="-M mipsIV"
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sim_mach_default="mips8000"
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;;
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mips64vr5*-*-*) sim_gen=IGEN
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sim_igen_machine="-M vr5000"
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sim_mach_default="mips5000"
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;;
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mips64vr41*) sim_gen=M16
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sim_igen_machine="-M vr4100"
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sim_m16_machine="-M vr4100"
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sim_igen_filter="32,64,f"
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sim_m16_filter="16"
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sim_mach_default="mips4100"
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;;
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mips64vr-*-* | mips64vrel-*-*)
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sim_gen=MULTI
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sim_multi_configs="\
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vr4100:mipsIII,mips16,vr4100:32,64:mips4100,mips4111\
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vr4120:mipsIII,mips16,vr4120:32,64:mips4120\
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vr5000:mipsIV:32,64,f:mips4300,mips5000\
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vr5400:mipsIV,vr5400:32,64,f:mips5400\
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vr5500:mipsIV,vr5500:32,64,f:mips5500"
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sim_multi_default=mips5000
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;;
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mips*-sde-elf* | mips*-mti-elf*)
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sim_gen=MULTI
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sim_multi_configs="\
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micromips:micromips64,micromipsdsp:32,64,f:mips_micromips\
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mips64r2:mips64r2,mips3d,mips16,mips16e,mdmx,dsp,dsp2,smartmips:32,64,f:mipsisa64r2"
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sim_multi_default=mipsisa64r2
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;;
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mips64*-*-*) sim_igen_filter="32,64,f"
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sim_gen=IGEN
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;;
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mips16*-*-*) sim_gen=M16
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sim_igen_filter="32,64,f"
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sim_m16_filter="16"
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;;
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mipsisa32r2*-*-*) sim_gen=MULTI
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sim_multi_configs="\
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micromips:micromips32,micromipsdsp:32,f:mips_micromips\
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mips32r2:mips32r2,mips3d,mips16,mips16e,mdmx,dsp,dsp2,smartmips:32,f:mipsisa32r2"
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sim_multi_default=mipsisa32r2
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;;
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mipsisa32*-*-*) sim_gen=M16
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sim_igen_machine="-M mips32,mips16,mips16e,smartmips"
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sim_m16_machine="-M mips16,mips16e,mips32"
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sim_igen_filter="32,f"
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sim_mach_default="mipsisa32"
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;;
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mipsisa64r2*-*-*) sim_gen=M16
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sim_igen_machine="-M mips64r2,mips3d,mips16,mips16e,mdmx,dsp,dsp2"
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sim_m16_machine="-M mips16,mips16e,mips64r2"
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sim_igen_filter="32,64,f"
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sim_mach_default="mipsisa64r2"
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;;
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mipsisa64sb1*-*-*) sim_gen=IGEN
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sim_igen_machine="-M mips64,mips3d,sb1"
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sim_igen_filter="32,64,f"
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sim_mach_default="mips_sb1"
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;;
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mipsisa64*-*-*) sim_gen=M16
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sim_igen_machine="-M mips64,mips3d,mips16,mips16e,mdmx"
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sim_m16_machine="-M mips16,mips16e,mips64"
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sim_igen_filter="32,64,f"
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sim_mach_default="mipsisa64"
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;;
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mips*lsi*) sim_gen=M16
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sim_igen_machine="-M mipsIII,mips16"
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sim_m16_machine="-M mips16,mipsIII"
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sim_igen_filter="32,f"
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sim_m16_filter="16"
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sim_mach_default="mips4000"
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;;
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mips*-*-*) sim_gen=IGEN
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sim_igen_filter="32,f"
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;;
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esac
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# The MULTI generator can combine several simulation engines into one.
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# executable. A configuration which uses the MULTI should set two
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# variables: ${sim_multi_configs} and ${sim_multi_default}.
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#
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# ${sim_multi_configs} is the list of engines to build. Each
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# space-separated entry has the form NAME:MACHINE:FILTER:BFDMACHS,
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# where:
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#
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# - NAME is a C-compatible prefix for the engine,
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# - MACHINE is a -M argument,
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# - FILTER is a -F argument, and
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# - BFDMACHS is a comma-separated list of bfd machines that the
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# simulator can run.
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#
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# Each entry will have a separate simulation engine whose prefix is
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# m32<NAME>. If the machine list includes "mips16", there will also
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# be a mips16 engine, prefix m16<NAME>. The mips16 engine will be
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# generated using the same machine list as the 32-bit version,
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# but the filter will be "16" instead of FILTER.
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#
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# The simulator compares the bfd mach against BFDMACHS to decide
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# which engine to use. Entries in BFDMACHS should be bfd_mach
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# values with "bfd_mach_" removed. ${sim_multi_default} says
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# which entry should be the default.
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if test ${sim_gen} = MULTI; then
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# Simple sanity check.
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if test -z "${sim_multi_configs}" || test -z "${sim_multi_default}"; then
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AC_MSG_ERROR(Error in configure.ac: MULTI simulator not set up correctly)
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fi
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# Start in a known state.
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rm -f multi-include.h multi-run.c
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sim_multi_flags=
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sim_multi_src=
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sim_multi_obj=
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sim_multi_igen_configs=
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sim_seen_default=no
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cat << __EOF__ > multi-run.c
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/* Main entry point for MULTI simulators.
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Copyright (C) 2003-2021 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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--
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This file was generated by sim/mips/configure. */
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#include "sim-main.h"
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#include "multi-include.h"
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#include "elf-bfd.h"
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#include "elf/mips.h"
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#define SD sd
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#define CPU cpu
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void
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sim_engine_run (SIM_DESC sd,
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int next_cpu_nr,
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int nr_cpus,
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int signal) /* ignore */
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{
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int mach;
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if (STATE_ARCHITECTURE (sd) == NULL)
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mach = bfd_mach_${sim_multi_default};
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else if (elf_elfheader (STATE_PROG_BFD (sd))->e_flags
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& EF_MIPS_ARCH_ASE_MICROMIPS)
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mach = bfd_mach_mips_micromips;
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else
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mach = STATE_ARCHITECTURE (SD)->mach;
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switch (mach)
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{
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__EOF__
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for fc in ${sim_multi_configs}; do
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# Split up the entry. ${c} contains the first three elements.
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# Note: outer sqaure brackets are m4 quotes.
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c=`echo ${fc} | sed ['s/:[^:]*$//']`
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bfdmachs=`echo ${fc} | sed 's/.*://'`
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name=`echo ${c} | sed 's/:.*//'`
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machine=`echo ${c} | sed 's/.*:\(.*\):.*/\1/'`
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filter=`echo ${c} | sed 's/.*://'`
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# Build the following lists:
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#
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# sim_multi_flags: all -M and -F flags used by the simulator
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# sim_multi_src: all makefile-generated source files
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# sim_multi_obj: the objects for ${sim_multi_src}
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# sim_multi_igen_configs: igen configuration strings.
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#
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# Each entry in ${sim_multi_igen_configs} is a prefix (m32
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# or m16) followed by the NAME, MACHINE and FILTER part of
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# the ${sim_multi_configs} entry.
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sim_multi_flags="${sim_multi_flags} -F ${filter} -M ${machine}"
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# Check whether special handling is needed.
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case ${c} in
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*:*mips16*:*)
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# Run igen twice, once for normal mode and once for mips16.
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ws="m32 m16"
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# The top-level function for the mips16 simulator is
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# in a file m16${name}_run.c, generated by the
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# tmp-run-multi Makefile rule.
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sim_multi_src="${sim_multi_src} m16${name}_run.c"
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sim_multi_obj="${sim_multi_obj} m16${name}_run.o"
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sim_multi_flags="${sim_multi_flags} -F 16"
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;;
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*:*micromips32*:*)
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# Run igen thrice, once for micromips32, once for micromips16,
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# and once for m32.
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ws="micromips_m32 micromips16 micromips32"
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# The top-level function for the micromips simulator is
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# in a file micromips${name}_run.c, generated by the
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# tmp-run-multi Makefile rule.
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sim_multi_src="${sim_multi_src} micromips${name}_run.c"
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sim_multi_obj="${sim_multi_obj} micromips${name}_run.o"
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sim_multi_flags="${sim_multi_flags} -F 16,32"
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;;
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*:*micromips64*:*)
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# Run igen thrice, once for micromips64, once for micromips16,
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# and once for m64.
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ws="micromips_m64 micromips16 micromips64"
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# The top-level function for the micromips simulator is
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# in a file micromips${name}_run.c, generated by the
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# tmp-run-multi Makefile rule.
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sim_multi_src="${sim_multi_src} micromips${name}_run.c"
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sim_multi_obj="${sim_multi_obj} micromips${name}_run.o"
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sim_multi_flags="${sim_multi_flags} -F 16,32,64"
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;;
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*)
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ws=m32
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;;
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esac
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# Now add the list of igen-generated files to ${sim_multi_src}
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# and ${sim_multi_obj}.
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for w in ${ws}; do
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for base in engine icache idecode model semantics support; do
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sim_multi_src="${sim_multi_src} ${w}${name}_${base}.c"
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sim_multi_src="${sim_multi_src} ${w}${name}_${base}.h"
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sim_multi_obj="${sim_multi_obj} ${w}${name}_${base}.o"
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done
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sim_multi_igen_configs="${sim_multi_igen_configs} ${w}${c}"
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done
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# Add an include for the engine.h file. This file declares the
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# top-level foo_engine_run() function.
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echo "#include \"${w}${name}_engine.h\"" >> multi-include.h
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# Add case statements for this engine to sim_engine_run().
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for mach in `echo ${bfdmachs} | sed 's/,/ /g'`; do
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echo " case bfd_mach_${mach}:" >> multi-run.c
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if test ${mach} = ${sim_multi_default}; then
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echo " default:" >> multi-run.c
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sim_seen_default=yes
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fi
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done
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echo " ${w}${name}_engine_run (sd, next_cpu_nr, nr_cpus, signal);" \
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>> multi-run.c
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echo " break;" >> multi-run.c
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done
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# Check whether we added a 'default:' label.
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if test ${sim_seen_default} = no; then
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AC_MSG_ERROR(Error in configure.ac: \${sim_multi_configs} doesn't have an entry for \${sim_multi_default})
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fi
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cat << __EOF__ >> multi-run.c
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}
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}
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int
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mips_mach_multi (SIM_DESC sd)
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{
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if (STATE_ARCHITECTURE (sd) == NULL)
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return bfd_mach_${sim_multi_default};
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switch (STATE_ARCHITECTURE (SD)->mach)
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{
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__EOF__
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# Add case statements for this engine to mips_mach_multi().
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for fc in ${sim_multi_configs}; do
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# Split up the entry. ${c} contains the first three elements.
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# Note: outer sqaure brackets are m4 quotes.
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c=`echo ${fc} | sed ['s/:[^:]*$//']`
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bfdmachs=`echo ${fc} | sed 's/.*://'`
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for mach in `echo ${bfdmachs} | sed 's/,/ /g'`; do
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echo " case bfd_mach_${mach}:" >> multi-run.c
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done
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done
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cat << __EOF__ >> multi-run.c
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return (STATE_ARCHITECTURE (SD)->mach);
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default:
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return bfd_mach_${sim_multi_default};
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}
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}
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__EOF__
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SIM_SUBTARGET="$SIM_SUBTARGET -DMIPS_MACH_MULTI"
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else
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# For clean-extra
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sim_multi_src=doesnt-exist.c
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if test x"${sim_mach_default}" = x""; then
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AC_MSG_ERROR(Error in configure.ac: \${sim_mach_default} not defined)
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fi
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SIM_SUBTARGET="$SIM_SUBTARGET -DMIPS_MACH_DEFAULT=bfd_mach_${sim_mach_default}"
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fi
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sim_igen_flags="-F ${sim_igen_filter} ${sim_igen_machine} ${sim_igen_smp}"
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sim_m16_flags=" -F ${sim_m16_filter} ${sim_m16_machine} ${sim_igen_smp}"
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sim_micromips16_flags=" -F ${sim_micromips16_filter} ${sim_micromips16_machine} ${sim_igen_smp}"
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sim_micromips_flags=" -F ${sim_micromips_filter} ${sim_micromips_machine} ${sim_igen_smp}"
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AC_SUBST(sim_igen_flags)
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AC_SUBST(sim_m16_flags)
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AC_SUBST(sim_micromips_flags)
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AC_SUBST(sim_micromips16_flags)
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AC_SUBST(sim_gen)
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AC_SUBST(sim_multi_flags)
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AC_SUBST(sim_multi_igen_configs)
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AC_SUBST(sim_multi_src)
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AC_SUBST(sim_multi_obj)
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#
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# Add simulated hardware devices
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#
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hw_enabled=no
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case "${target}" in
|
|
mips*tx39*)
|
|
hw_enabled=yes
|
|
hw_extra_devices="tx3904cpu tx3904irc tx3904tmr tx3904sio"
|
|
;;
|
|
*)
|
|
;;
|
|
esac
|
|
SIM_AC_OPTION_HARDWARE($hw_enabled,$hw_devices,$hw_extra_devices)
|
|
|
|
|
|
# Choose simulator engine
|
|
case "${target}" in
|
|
*) mips_igen_engine="engine.o"
|
|
;;
|
|
esac
|
|
AC_SUBST(mips_igen_engine)
|
|
|
|
|
|
AC_PATH_X
|
|
mips_extra_libs=""
|
|
AC_SUBST(mips_extra_libs)
|
|
|
|
AC_CHECK_LIB(m, fabs)
|
|
AC_CHECK_FUNCS(aint anint sqrt)
|
|
|
|
SIM_AC_OUTPUT
|