android_external_toybox/tests/devmem.test

#!/bin/bash

#testing "name" "command" "result" "infile" "stdin"

echo "xxxxxxxxhello, world!" > foo
testcmd 'read default (4)' '-f foo 0x8' '0x6c6c6568\n' '' ''
testcmd 'read 1' '-f foo 0x8 1' '0x68\n' '' ''
testcmd 'read 2' '-f foo 0x8 2' '0x6568\n' '' ''
testcmd 'read 4' '-f foo 0x8 4' '0x6c6c6568\n' '' ''
testcmd 'read 8' '-f foo 0x8 8' '0x77202c6f6c6c6568\n' '' ''

head -c 32 /dev/zero > foo
NOSPACE=1 testcmd 'write 1' '-f foo 0x8 1 0x12 && od -t x foo' '0000000 00000000 00000000 00000012 00000000\n0000020 00000000 00000000 00000000 00000000\n0000040\n' '' ''
NOSPACE=1 testcmd 'write 2' '-f foo 0x8 2 0x1234 && od -t x foo' '0000000 00000000 00000000 00001234 00000000\n0000020 00000000 00000000 00000000 00000000\n0000040\n' '' ''
NOSPACE=1 testcmd 'write 4' '-f foo 0x8 4 0x12345678 && od -t x foo' '0000000 00000000 00000000 12345678 00000000\n0000020 00000000 00000000 00000000 00000000\n0000040\n' '' ''
NOSPACE=1 testcmd 'write 8' '-f foo 0x8 8 0x12345678abcdef01 && od -t x foo' '0000000 00000000 00000000 abcdef01 12345678\n0000020 00000000 00000000 00000000 00000000\n0000040\n' '' ''

head -c 32 /dev/zero > foo
NOSPACE=1 testcmd 'write 1 multiple' '-f foo 0x8 1 0x12 0x34 && od -t x foo' '0000000 00000000 00000000 00003412 00000000\n0000020 00000000 00000000 00000000 00000000\n0000040\n' '' ''
NOSPACE=1 testcmd 'write 2 multiple' '-f foo 0x8 2 0x1234 0x5678 && od -t x foo' '0000000 00000000 00000000 56781234 00000000\n0000020 00000000 00000000 00000000 00000000\n0000040\n' '' ''
NOSPACE=1 testcmd 'write 4 multiple' '-f foo 0x8 4 0x12345678 0xabcdef01 && od -t x foo' '0000000 00000000 00000000 12345678 abcdef01\n0000020 00000000 00000000 00000000 00000000\n0000040\n' '' ''
NOSPACE=1 testcmd 'write 8 multiple' '-f foo 0x8 8 0x12345678abcdef01 0x1122334455667788 && od -t x foo' '0000000 00000000 00000000 abcdef01 12345678\n0000020 55667788 11223344 00000000 00000000\n0000040\n' '' ''
devmem: add -f FILE, arbitrary amounts of data. -f lets people use /dev/port for x86 i/o ports (rather than needing a separate x86-only command), or /dev/nvram, or /dev/cpu//msr, or /sys/bus/pci/devices/::.* ... you get the idea. It also means we can write some tests. (Though of course, the tests don't tell us whether this actually works with, /dev/foo, or whether you actually need to lseek()+write() rather than mmap().) Also support arbitrary numbers of writes (with address auto-increment). 2024-07-25 11:07:09 -07:00			`#!/bin/bash`

			`#testing "name" "command" "result" "infile" "stdin"`

			`echo "xxxxxxxxhello, world!" > foo`
			`testcmd 'read default (4)' '-f foo 0x8' '0x6c6c6568\n' '' ''`
			`testcmd 'read 1' '-f foo 0x8 1' '0x68\n' '' ''`
			`testcmd 'read 2' '-f foo 0x8 2' '0x6568\n' '' ''`
			`testcmd 'read 4' '-f foo 0x8 4' '0x6c6c6568\n' '' ''`
			`testcmd 'read 8' '-f foo 0x8 8' '0x77202c6f6c6c6568\n' '' ''`

			`head -c 32 /dev/zero > foo`
devmem.test: ignore whitespace. Yet again, I am victim of my own bad habit of only testing on my Debian desktop... It turns out that [current] Debian od uses a single space between fields, macOS od uses a tab between fields, and toybox od uses 4 spaces between fields. (Given that POSIX just says "one or more <blank> characters", I assume this isn't a new problem.) Sidestep this with NOSPACE=1 for all the od-using tests. 2024-08-01 11:28:05 -07:00			`NOSPACE=1 testcmd 'write 1' '-f foo 0x8 1 0x12 && od -t x foo' '0000000 00000000 00000000 00000012 00000000\n0000020 00000000 00000000 00000000 00000000\n0000040\n' '' ''`
			`NOSPACE=1 testcmd 'write 2' '-f foo 0x8 2 0x1234 && od -t x foo' '0000000 00000000 00000000 00001234 00000000\n0000020 00000000 00000000 00000000 00000000\n0000040\n' '' ''`
			`NOSPACE=1 testcmd 'write 4' '-f foo 0x8 4 0x12345678 && od -t x foo' '0000000 00000000 00000000 12345678 00000000\n0000020 00000000 00000000 00000000 00000000\n0000040\n' '' ''`
			`NOSPACE=1 testcmd 'write 8' '-f foo 0x8 8 0x12345678abcdef01 && od -t x foo' '0000000 00000000 00000000 abcdef01 12345678\n0000020 00000000 00000000 00000000 00000000\n0000040\n' '' ''`
devmem: add -f FILE, arbitrary amounts of data. -f lets people use /dev/port for x86 i/o ports (rather than needing a separate x86-only command), or /dev/nvram, or /dev/cpu//msr, or /sys/bus/pci/devices/::.* ... you get the idea. It also means we can write some tests. (Though of course, the tests don't tell us whether this actually works with, /dev/foo, or whether you actually need to lseek()+write() rather than mmap().) Also support arbitrary numbers of writes (with address auto-increment). 2024-07-25 11:07:09 -07:00
			`head -c 32 /dev/zero > foo`
devmem.test: ignore whitespace. Yet again, I am victim of my own bad habit of only testing on my Debian desktop... It turns out that [current] Debian od uses a single space between fields, macOS od uses a tab between fields, and toybox od uses 4 spaces between fields. (Given that POSIX just says "one or more <blank> characters", I assume this isn't a new problem.) Sidestep this with NOSPACE=1 for all the od-using tests. 2024-08-01 11:28:05 -07:00			`NOSPACE=1 testcmd 'write 1 multiple' '-f foo 0x8 1 0x12 0x34 && od -t x foo' '0000000 00000000 00000000 00003412 00000000\n0000020 00000000 00000000 00000000 00000000\n0000040\n' '' ''`
			`NOSPACE=1 testcmd 'write 2 multiple' '-f foo 0x8 2 0x1234 0x5678 && od -t x foo' '0000000 00000000 00000000 56781234 00000000\n0000020 00000000 00000000 00000000 00000000\n0000040\n' '' ''`
			`NOSPACE=1 testcmd 'write 4 multiple' '-f foo 0x8 4 0x12345678 0xabcdef01 && od -t x foo' '0000000 00000000 00000000 12345678 abcdef01\n0000020 00000000 00000000 00000000 00000000\n0000040\n' '' ''`
			`NOSPACE=1 testcmd 'write 8 multiple' '-f foo 0x8 8 0x12345678abcdef01 0x1122334455667788 && od -t x foo' '0000000 00000000 00000000 abcdef01 12345678\n0000020 55667788 11223344 00000000 00000000\n0000040\n' '' ''`