riscv64: minor ASLR bits changes.
Improve the comment, and increase the "minimum maximum" to 24 --- we
only support 64-bit, and 64-bit never has less than 24 bits.
Bug: https://github.com/google/android-riscv64/issues/1
Test: treehugger
Change-Id: I478c7649aa19258352c908a449cabe12da94952c
diff --git a/init/security.cpp b/init/security.cpp
index 6e616be..445286a 100644
--- a/init/security.cpp
+++ b/init/security.cpp
@@ -117,10 +117,10 @@
return {};
}
#elif defined(__riscv)
- // TODO: sv48 and sv57 were both added to the kernel this year, so we
- // probably just need some kernel fixes to enable higher ASLR randomization,
- // but for now 24 is the maximum that the kernel supports.
- if (SetMmapRndBitsMin(24, 18, false)) {
+ // TODO: sv48 and sv57 have both been added to the kernel, but the kernel
+ // still doesn't support more than 24 bits.
+ // https://github.com/google/android-riscv64/issues/1
+ if (SetMmapRndBitsMin(24, 24, false)) {
return {};
}
#elif defined(__x86_64__)