refactor(aarch64): rename start.s to exceptions.s

[mkroening]

The file contains nothing related to the kernel's entry point. Instead, it is all about exceptions.

Extracted from #2546.

[github-actions]

Benchmark Results

Details

Benchmark	Current: bc510f7	Previous: 2e23902	Performance Ratio
startup_benchmark Build Time	80.64 s	80.34 s	1.00 ❗
startup_benchmark File Size	0.79 MB	0.80 MB	1.00 ❗
Startup Time - 1 core	0.72 s (±0.02 s)	0.75 s (±0.02 s)	0.96 ❗
Startup Time - 2 cores	0.76 s (±0.03 s)	0.74 s (±0.02 s)	1.03
Startup Time - 4 cores	0.74 s (±0.02 s)	0.74 s (±0.02 s)	1.00
multithreaded_benchmark Build Time	83.16 s	82.11 s	1.01 ❗
multithreaded_benchmark File Size	0.90 MB	0.86 MB	1.05 ❗
Multithreaded Pi Efficiency - 2 Threads	89.45 % (±7.23 %)	85.89 % (±6.61 %)	1.04
Multithreaded Pi Efficiency - 4 Threads	43.89 % (±3.73 %)	43.43 % (±2.56 %)	1.01
Multithreaded Pi Efficiency - 8 Threads	25.83 % (±1.59 %)	25.76 % (±1.53 %)	1.00
micro_benchmarks Build Time	83.93 s	80.40 s	1.04 ❗
micro_benchmarks File Size	0.90 MB	0.86 MB	1.05 ❗
Scheduling time - 1 thread	63.88 ticks (±2.30 ticks)	62.65 ticks (±4.06 ticks)	1.02
Scheduling time - 2 threads	35.28 ticks (±4.21 ticks)	34.08 ticks (±4.10 ticks)	1.04
Micro - Time for syscall (getpid)	3.89 ticks (±0.66 ticks)	3.45 ticks (±0.58 ticks)	1.13
Memcpy speed - (built_in) block size 4096	86338.60 MByte/s (±59539.63 MByte/s)	82448.38 MByte/s (±56997.13 MByte/s)	1.05
Memcpy speed - (built_in) block size 1048576	30677.18 MByte/s (±24701.77 MByte/s)	30585.98 MByte/s (±24707.84 MByte/s)	1.00
Memcpy speed - (built_in) block size 16777216	29320.80 MByte/s (±24105.89 MByte/s)	26340.06 MByte/s (±21720.96 MByte/s)	1.11
Memset speed - (built_in) block size 4096	86388.78 MByte/s (±59575.07 MByte/s)	82292.76 MByte/s (±56891.50 MByte/s)	1.05
Memset speed - (built_in) block size 1048576	31404.83 MByte/s (±25112.79 MByte/s)	31323.85 MByte/s (±25145.86 MByte/s)	1.00
Memset speed - (built_in) block size 16777216	30074.21 MByte/s (±24532.24 MByte/s)	27104.68 MByte/s (±22209.94 MByte/s)	1.11
Memcpy speed - (rust) block size 4096	74268.70 MByte/s (±51793.68 MByte/s)	74097.96 MByte/s (±51811.44 MByte/s)	1.00
Memcpy speed - (rust) block size 1048576	30386.21 MByte/s (±24552.57 MByte/s)	30361.60 MByte/s (±24602.37 MByte/s)	1.00
Memcpy speed - (rust) block size 16777216	29366.04 MByte/s (±24132.19 MByte/s)	27625.34 MByte/s (±22806.88 MByte/s)	1.06
Memset speed - (rust) block size 4096	74982.78 MByte/s (±52263.65 MByte/s)	74373.47 MByte/s (±51976.48 MByte/s)	1.01
Memset speed - (rust) block size 1048576	31113.07 MByte/s (±24966.96 MByte/s)	31110.89 MByte/s (±25033.24 MByte/s)	1.00
Memset speed - (rust) block size 16777216	30107.90 MByte/s (±24546.91 MByte/s)	28386.93 MByte/s (±23265.03 MByte/s)	1.06
alloc_benchmarks Build Time	77.56 s	74.76 s	1.04 ❗
alloc_benchmarks File Size	0.87 MB	0.87 MB	1.00 ❗
Allocations - Allocation success	91.31 %	91.31 %	1
Allocations - Deallocation success	100.00 %	100.00 %	1
Allocations - Pre-fail Allocations	61.44 %	61.44 %	1
Allocations - Average Allocation time	4305.30 Ticks (±127.32 Ticks)	5860.58 Ticks (±98.43 Ticks)	0.73 ❗
Allocations - Average Allocation time (no fail)	5061.90 Ticks (±116.26 Ticks)	6554.81 Ticks (±92.86 Ticks)	0.77 ❗
Allocations - Average Deallocation time	891.79 Ticks (±141.63 Ticks)	1805.01 Ticks (±250.35 Ticks)	0.49 ❗
mutex_benchmark Build Time	79.25 s	79.82 s	0.99 ❗
mutex_benchmark File Size	0.90 MB	0.86 MB	1.05 ❗
Mutex Stress Test Average Time per Iteration - 1 Threads	12.28 ns (±0.45 ns)	12.10 ns (±0.41 ns)	1.01
Mutex Stress Test Average Time per Iteration - 2 Threads	41.06 ns (±2.72 ns)	40.26 ns (±1.68 ns)	1.02

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