Fangrui Song daba24ee7b [ELF] << >>: make RHS less than 64
The left/right shift linker script operators may trigger UB.
E.g. in linkerscript/end-overflow-check.test, the initial REGION1__PADDED_SR_SHIFT is
uint64_t(-3), cause the following expression to trigger an out-of-range shift in
a ubsan build of lld.

    REGION1__PADDED_SR_SIZE = MAX(1 << REGION1__PADDED_SR_SHIFT, 32);

Protect such UBs by making RHS less than 64.
2023-06-15 10:34:33 -07:00
..
2021-08-04 08:58:50 -07:00