Sophia Wisdom sophiawisdom
sophiawisdom
/ daemon.c
Created
February 17, 2020 07:09
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| #include <mach/mach_init.h> | |
| #include <mach/thread_act.h> | |
| #include <mach/task.h> | |
| #include <mach/port.h> | |
| #include <libproc.h> | |
| #include <sys/wait.h> | |
| #include <unistd.h> | |
| #include <stdio.h> | |
| #include <stdlib.h> | |
| #include <mach/mach_vm.h> |
sophiawisdom
/ sigsegv crash
Created
February 17, 2020 07:09
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| Process: Python [97984] | |
| Path: /Library/Frameworks/Python.framework/Versions/3.6/Resources/Python.app/Contents/MacOS/Python | |
| Identifier: Python | |
| Version: 3.6.1 (3.6.1) | |
| Code Type: X86-64 (Native) | |
| Parent Process: zsh [97671] | |
| Responsible: Python [97984] | |
| User ID: 502 | |
| Date/Time: 2020-02-16 23:08:47.880 -0800 |
sophiawisdom
/ output
Last active
April 25, 2020 16:40
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| sophiawisdom@Sophias-MacBook-Pro tweaks % ./test_release | |
| namesCount before is 10 | |
| namesCount after is 10 | |
| sophiawisdom@Sophias-MacBook-Pro tweaks % |
sophiawisdom
/ output
Last active
April 25, 2020 17:14
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| namesCount before is 10 | |
| There are 2 refs for mach_thread_self and 2 refs for task_self_trap() | |
| There are 1002 refs for mach_thread_self and 1002 refs for task_self_trap() | |
| namesCount after is 10 | |
| new thread started | |
| numKRefs for new thread is 2 | |
| sophiawisdom@Sophias-MacBook-Pro tweaks % |
sophiawisdom
/ 1: call_one_function.c
Last active
April 26, 2020 16:49
thread_set_state does not set gs register
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| #include <mach/mach_init.h> | |
| #include <mach/thread_act.h> | |
| #include <mach/task.h> | |
| #include <mach/port.h> | |
| #include <mach-o/dyld_images.h> | |
| #include <mach/mach_vm.h> | |
| #include <dlfcn.h> | |
| #include <stdio.h> | |
| #include <stdlib.h> |
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| #include <stdlib.h> | |
| #include <stdio.h> | |
| #include <sys/time.h> | |
| #include <limits.h> | |
| int compar(const void *a, const void *b) { | |
| unsigned int val_a = *(unsigned int *)a; | |
| unsigned int val_b = *(unsigned int *)b; | |
| if (val_a < val_b) { | |
| return -1; |
sophiawisdom
/ vectorized linear search for AVX2.c
Created
June 8, 2020 21:28
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| int vectorizedLinearSearch(unsigned int *array, int size, unsigned int searchNum) { | |
| assert(((size >> 3) << 3) == size); // divisible by 8 for __m256i | |
| __m256i searchVector = _mm256_set1_epi32(searchNum); // broadcast searchNum | |
| for (int i = 0; i < size; i+=8) { | |
| __m256i searchValue = _mm256_loadu_si256(&array[i]); | |
| // Would be better if we could compare just a single 32 bit value, but just duplicating | |
| // the 32 bit value is fine also. | |
| __m256i eqMask = _mm256_cmpeq_epi32(searchVector, searchValue); | |
| unsigned int intMask = _mm256_movemask_ps(eqMask); | |
| if (_mm_popcnt_u32(intMask) != 0) { |
sophiawisdom
/ simple.py
Last active
June 16, 2020 19:03
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| from twisted.internet import asyncioreactor | |
| # may need to be installed before other twisted imports? | |
| asyncioreactor.install() | |
| from twisted.internet import reactor | |
| from twisted.web.resource import Resource | |
| from twisted.internet.defer import ensureDeferred | |
| from twisted.web.server import Site, NOT_DONE_YET |
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| ffprobe version N-100563-g66deab3 Copyright (c) 2007-2021 the FFmpeg developers | |
| built with Apple clang version 12.0.0 (clang-1200.0.32.28) | |
| configuration: | |
| libavutil 56. 63.100 / 56. 63.100 | |
| libavcodec 58.115.102 / 58.115.102 | |
| libavformat 58. 65.101 / 58. 65.101 | |
| libavdevice 58. 11.103 / 58. 11.103 | |
| libavfilter 7. 95.100 / 7. 95.100 | |
| libswscale 5. 8.100 / 5. 8.100 | |
| libswresample 3. 8.100 / 3. 8.100 |
sophiawisdom
/ tweaks console dialog
Created
August 20, 2021 10:36
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| Need a more recent version of /usr/lib/system/introspection/libdispatch.dylib -- missing suppport for the queue_item_complete hook function. | |
| Location is /var/root/Library/Developer/Xcode/DerivedData/mods-hiqpvfikerrvwrbgoskpjqwmglif/Build/Products/Debug/daemon | |
| Input PID to pause: 36907 | |
| Injecting into PID 36907 | |
| Magic number is -17958193 | |
| got a command of type 25 | |
| got a command of type 25 | |
| got a command of type 25 | |
| got a command of type 25 |
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