diff options
Diffstat (limited to 'Documentation/arch/arm64/kasan-offsets.sh')
| -rw-r--r-- | Documentation/arch/arm64/kasan-offsets.sh | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/Documentation/arch/arm64/kasan-offsets.sh b/Documentation/arch/arm64/kasan-offsets.sh new file mode 100644 index 000000000000..2dc5f9e18039 --- /dev/null +++ b/Documentation/arch/arm64/kasan-offsets.sh @@ -0,0 +1,26 @@ +#!/bin/sh + +# Print out the KASAN_SHADOW_OFFSETS required to place the KASAN SHADOW +# start address at the top of the linear region + +print_kasan_offset () { + printf "%02d\t" $1 + printf "0x%08x00000000\n" $(( (0xffffffff & (-1 << ($1 - 1 - 32))) \ + - (1 << (64 - 32 - $2)) )) +} + +echo KASAN_SHADOW_SCALE_SHIFT = 3 +printf "VABITS\tKASAN_SHADOW_OFFSET\n" +print_kasan_offset 48 3 +print_kasan_offset 47 3 +print_kasan_offset 42 3 +print_kasan_offset 39 3 +print_kasan_offset 36 3 +echo +echo KASAN_SHADOW_SCALE_SHIFT = 4 +printf "VABITS\tKASAN_SHADOW_OFFSET\n" +print_kasan_offset 48 4 +print_kasan_offset 47 4 +print_kasan_offset 42 4 +print_kasan_offset 39 4 +print_kasan_offset 36 4 |