tree 98764f33bf01c367d496c54c8676abbc2f39745b
parent 377f0b9138e132029fdb8c96682a76044c4ffa03
author Kalesh Singh <kaleshsingh@google.com> 1706775276 -0800
committer Kalesh Singh <kaleshsingh@google.com> 1707271156 -0800

bionic: linker_phdr: Introduce kPageSize

kPageSize is needed to determine whether the loader needs to
extend VMAs to avoid gaps in the memory map when loading the ELF.

While at it, use kPageSize to generically deduce the PMD size and
replace the hardcoded 2MB PMD size.

Bug: 316403210
Test: atest -c linker-unit-tests [Later patch]
Test: m && launch_cvd
Change-Id: Ie770320e629c38149dc75dae1deb1e429dd1acf2
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>