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Kernel/aarch64: Make REGISTER_STATE_SIZE a multiple of 16 bytes

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This ensure that the stack pointer also stays 16 byte aligned. This
fixes a baremetal issue when getting an exception.
This commit is contained in:
Timon Kruiper 2023-05-15 20:29:59 +02:00 • committed by Andrew Kaster
parent 65ed5419ae
commit 55e8ffd122
1 changed files with 7 additions and 1 deletions
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8
Kernel/Arch/aarch64/vector_table.S
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@ -6,7 +6,13 @@
.section .text.vector_table
#define REGISTER_STATE_SIZE 264
// NOTE: This size must be a multiple of 16 bytes, to ensure that the stack pointer
// stays 16 byte aligned.
#define REGISTER_STATE_SIZE 272
#if REGISTER_STATE_SIZE % 16 != 0
# error "REGISTER_STATE_SIZE is not a multiple of 16 bytes!"
#endif
#define SPSR_EL1_SLOT (31 * 8)
#define ELR_EL1_SLOT (32 * 8)
#define SP_EL0_SLOT (33 * 8)