refactor: clean up arch-specific imports

[mkroening]

This PR cleans up imports from the arch module. This unifies the way arch-specific items are imported and makes things less confusing. Unfortunately, this creates a lot of churn, but I think this is overdue.

This potentially impacts projects that use the kernel's Rust API:

• load_application and jump_to_user_land are now exported at hermit::common_os instead of hermit::arch.
• DEFAULT_STACK_SIZE is now exported at hermit::config instead of hermit.

[github-actions]

Benchmark Results

Details

Benchmark	Current: c49e3f8	Previous: a1f61b1	Performance Ratio
startup_benchmark Build Time	81.34 s	78.48 s	1.04 ❗
startup_benchmark File Size	0.76 MB	0.76 MB	1.00 ❗
Startup Time - 1 core	0.74 s (±0.02 s)	0.74 s (±0.03 s)	1.01
Startup Time - 2 cores	0.75 s (±0.02 s)	0.74 s (±0.02 s)	1.01
Startup Time - 4 cores	0.75 s (±0.02 s)	0.75 s (±0.02 s)	1.00
multithreaded_benchmark Build Time	76.63 s	80.13 s	0.96 ❗
multithreaded_benchmark File Size	0.82 MB	0.82 MB	1.00 ❗
Multithreaded Pi Efficiency - 2 Threads	85.46 % (±7.17 %)	89.16 % (±6.61 %)	0.96
Multithreaded Pi Efficiency - 4 Threads	43.14 % (±2.61 %)	43.73 % (±3.07 %)	0.99
Multithreaded Pi Efficiency - 8 Threads	25.22 % (±1.65 %)	25.43 % (±1.47 %)	0.99
micro_benchmarks Build Time	88.08 s	87.54 s	1.01 ❗
micro_benchmarks File Size	0.82 MB	0.82 MB	1.00 ❗
Scheduling time - 1 thread	64.06 ticks (±2.61 ticks)	63.88 ticks (±3.26 ticks)	1.00
Scheduling time - 2 threads	35.65 ticks (±2.61 ticks)	35.42 ticks (±2.66 ticks)	1.01
Micro - Time for syscall (getpid)	2.78 ticks (±0.21 ticks)	2.75 ticks (±0.16 ticks)	1.01
Memcpy speed - (built_in) block size 4096	81298.74 MByte/s (±56185.22 MByte/s)	83476.99 MByte/s (±57740.79 MByte/s)	0.97
Memcpy speed - (built_in) block size 1048576	30971.58 MByte/s (±25218.65 MByte/s)	31152.85 MByte/s (±25279.17 MByte/s)	0.99
Memcpy speed - (built_in) block size 16777216	26950.57 MByte/s (±22279.56 MByte/s)	27725.51 MByte/s (±22925.84 MByte/s)	0.97
Memset speed - (built_in) block size 4096	81437.62 MByte/s (±56288.66 MByte/s)	83217.71 MByte/s (±57563.67 MByte/s)	0.98
Memset speed - (built_in) block size 1048576	31740.70 MByte/s (±25650.93 MByte/s)	31876.80 MByte/s (±25692.46 MByte/s)	1.00
Memset speed - (built_in) block size 16777216	27728.81 MByte/s (±22774.29 MByte/s)	28494.61 MByte/s (±23394.70 MByte/s)	0.97
Memcpy speed - (rust) block size 4096	73776.72 MByte/s (±51393.97 MByte/s)	73364.36 MByte/s (±51262.13 MByte/s)	1.01
Memcpy speed - (rust) block size 1048576	30997.96 MByte/s (±25222.13 MByte/s)	30937.29 MByte/s (±25120.05 MByte/s)	1.00
Memcpy speed - (rust) block size 16777216	26695.77 MByte/s (±22013.24 MByte/s)	27877.21 MByte/s (±23028.92 MByte/s)	0.96
Memset speed - (rust) block size 4096	74463.60 MByte/s (±51863.93 MByte/s)	73552.60 MByte/s (±51389.43 MByte/s)	1.01
Memset speed - (rust) block size 1048576	31737.92 MByte/s (±25643.68 MByte/s)	31673.17 MByte/s (±25534.80 MByte/s)	1.00
Memset speed - (rust) block size 16777216	27467.23 MByte/s (±22508.22 MByte/s)	28652.43 MByte/s (±23502.32 MByte/s)	0.96
alloc_benchmarks Build Time	86.31 s	81.48 s	1.06 ❗
alloc_benchmarks File Size	0.84 MB	0.84 MB	1.00 ❗
Allocations - Allocation success	91.32 %	91.32 %	1
Allocations - Deallocation success	100.00 %	100.00 %	1
Allocations - Pre-fail Allocations	61.46 %	61.46 %	1
Allocations - Average Allocation time	5126.61 Ticks (±889.82 Ticks)	3790.46 Ticks (±895.05 Ticks)	1.35 ❗
Allocations - Average Allocation time (no fail)	5901.12 Ticks (±865.72 Ticks)	4704.79 Ticks (±884.27 Ticks)	1.25
Allocations - Average Deallocation time	1453.28 Ticks (±440.21 Ticks)	1125.38 Ticks (±370.72 Ticks)	1.29
mutex_benchmark Build Time	85.97 s	104.96 s	0.82 ❗
mutex_benchmark File Size	0.82 MB	0.82 MB	1.00 ❗
Mutex Stress Test Average Time per Iteration - 1 Threads	12.38 ns (±0.49 ns)	12.00 ns (±0.40 ns)	1.03
Mutex Stress Test Average Time per Iteration - 2 Threads	18.32 ns (±1.21 ns)	16.88 ns (±0.68 ns)	1.09 ❗

This comment was automatically generated by workflow using github-action-benchmark.