diff options
Diffstat (limited to 'cortex-m-rt/link.x.in')
| -rw-r--r-- | cortex-m-rt/link.x.in | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/cortex-m-rt/link.x.in b/cortex-m-rt/link.x.in index 9f893d4..551f576 100644 --- a/cortex-m-rt/link.x.in +++ b/cortex-m-rt/link.x.in @@ -68,8 +68,12 @@ SECTIONS { __vector_table = .; - /* Initial Stack Pointer (SP) value */ - LONG(_stack_start); + /* Initial Stack Pointer (SP) value. + * We mask the bottom three bits to force 8-byte alignment. + * Despite having an assert for this later, it's possible that a separate + * linker script could override _stack_start after the assert is checked. + */ + LONG(_stack_start & 0xFFFFFFF8); /* Reset vector */ KEEP(*(.vector_table.reset_vector)); /* this is the `__RESET_VECTOR` symbol */ |