diff options
| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
| commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
| tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/arm64/kasan-offsets.sh | |
| parent | Initial commit. (diff) | |
| download | linux-upstream/5.10.209.tar.xz linux-upstream/5.10.209.zip | |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
| -rw-r--r-- | Documentation/arm64/kasan-offsets.sh | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/Documentation/arm64/kasan-offsets.sh b/Documentation/arm64/kasan-offsets.sh new file mode 100644 index 000000000..2b7a021db --- /dev/null +++ b/Documentation/arm64/kasan-offsets.sh @@ -0,0 +1,27 @@ +#!/bin/sh + +# Print out the KASAN_SHADOW_OFFSETS required to place the KASAN SHADOW +# start address at the mid-point of the kernel VA space + +print_kasan_offset () { + printf "%02d\t" $1 + printf "0x%08x00000000\n" $(( (0xffffffff & (-1 << ($1 - 1 - 32))) \ + + (1 << ($1 - 32 - $2)) \ + - (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 |