BootInfo: Add tls_align #241
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311: Fix thread pointer calculation, rework TaskTLS r=mkroening a=mkroening Closes hermit-os/hermit-rs#170. 🎉 Replaces #305. Depends on: * hermit-os/loader#46 * hermit-os/uhyve#241 The cause of the issue is the calculation of the thread pointer: ```python # Current calculation (wrong) thread_ptr = tls_block_ptr + round(tls_len, 32) # Correct calculation thread_ptr = tls_block_ptr + round(tls_len, tls_align) # round(tls_len, tls_align) is called tls_offset ``` This is fixed in the first two commits of this PR. The later commits completely rework the `TaskTLS` struct. I did this to better understand the problem. The old comments were partly outdated and wrong. Also the code was not very rusty. I replaced manual memory allocations with `Box`es and restructured and recommented the code. Co-authored-by: Martin Kröning <mkroening@posteo.net>
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Dec 4, 2021
311: Fix thread pointer calculation, rework TaskTLS r=mkroening a=mkroening Closes hermit-os/hermit-rs#170. 🎉 Replaces #305. Depends on: * hermit-os/loader#46 * hermit-os/uhyve#241 The cause of the issue is the calculation of the thread pointer: ```python # Current calculation (wrong) thread_ptr = tls_block_ptr + round(tls_len, 32) # Correct calculation thread_ptr = tls_block_ptr + round(tls_len, tls_align) # round(tls_len, tls_align) is called tls_offset ``` This is fixed in the first two commits of this PR. The later commits completely rework the `TaskTLS` struct. I did this to better understand the problem. The old comments were partly outdated and wrong. Also the code was not very rusty. I replaced manual memory allocations with `Box`es and restructured and recommented the code. Co-authored-by: Martin Kröning <mkroening@posteo.net>
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