tree 529781fc08b1af1e805c0455fc5b97ee9289b69e
parent 8abc34988165be7aaca736d8f016c9025e4f40c4
author Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com> 1519897067 +0100
committer Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com> 1519900131 +0100

aria: check arm arch version for asm

rev and rev16 are only supported from v6 (all profiles) and up.

arm-none-eabi-gcc picks a lower architecture version by default, which means
before this commit it would fail to build (assembler error) unless you
manually specified -march=armv6-m -mthumb or similar, which broke all.sh.

Source for version-checking macros:
- GCC/Clang: use the -E -dM - </dev/null trick
- armcc5: http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0472k/chr1359125007083.html
- armclang 6: http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0774g/chr1383660321827.html

Tested with the following script:

 #!/bin/sh

set -eu

ARMCLANG="env ARM_TOOL_VARIANT=ult $ARMC6_BIN_DIR/armclang"

build() {
    echo "$@"
    "$@" -Iinclude -c library/aria.c

}

build arm-none-eabi-gcc
build arm-none-eabi-gcc -march=armv5

build clang --target=arm-none-eabi
build clang --target=arm-none-eabi -march=armv5

build armcc
build armcc --gnu
build armcc --cpu=5T
build armcc --cpu=5T --gnu

build $ARMCLANG --target=arm-arm-none-eabi

check_asm() {
    rm -f aria.o
    build "$@"
    arm-none-eabi-objdump -d aria.o | grep rev16
}

check_asm arm-none-eabi-gcc -march=armv6-m -mthumb
check_asm arm-none-eabi-gcc -march=armv7-m -mthumb
check_asm arm-none-eabi-gcc -march=armv8-m.base -mthumb

check_asm arm-none-eabi-gcc -march=armv7-a -mthumb
check_asm arm-none-eabi-gcc -march=armv8-a -mthumb
check_asm arm-none-eabi-gcc -march=armv7-a -marm
check_asm arm-none-eabi-gcc -march=armv8-a -marm

check_asm clang --target=arm-none-eabi -march=armv6-m
check_asm clang --target=arm-none-eabi -march=armv7-a
check_asm clang --target=arm-none-eabi -march=armv7-m
check_asm clang --target=arm-none-eabi -march=armv7-r
check_asm clang --target=arm-none-eabi -march=armv8-a

check_asm armcc -O0 --cpu=6-M
check_asm armcc -O0 --cpu=7-M
check_asm armcc -O0 --cpu=6
check_asm armcc -O0 --cpu=7-A

check_asm $ARMCLANG --target=arm-arm-none-eabi -march=armv6-m
check_asm $ARMCLANG --target=arm-arm-none-eabi -march=armv7-a
check_asm $ARMCLANG --target=arm-arm-none-eabi -march=armv7-m
check_asm $ARMCLANG --target=arm-arm-none-eabi -march=armv7-r
check_asm $ARMCLANG --target=arm-arm-none-eabi -march=armv8-a
check_asm $ARMCLANG --target=arm-arm-none-eabi -march=armv8-m.base