Scott Tsai scottt
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| { | |
| "Assembler" : { | |
| "GNU AS 2.27" : [ | |
| "/usr/src/debug/glibc-2.25-24-g49f97e6/elf/../sysdeps/x86_64/dl-trampoline.h", | |
| "/usr/src/debug/glibc-2.25-24-g49f97e6/elf/../sysdeps/x86_64/dl-tlsdesc.S", | |
| "/usr/src/debug/glibc-2.25-24-g49f97e6/elf/../sysdeps/x86_64/tls_get_addr.S", | |
| "/usr/src/debug/glibc-2.25-24-g49f97e6/io/../sysdeps/unix/syscall-template.S", | |
| "/usr/src/debug/glibc-2.25-24-g49f97e6/io/../sysdeps/unix/syscall-template.S", | |
| "/usr/src/debug/glibc-2.25-24-g49f97e6/io/../sysdeps/unix/syscall-template.S", | |
| "/usr/src/debug/glibc-2.25-24-g49f97e6/io/../sysdeps/unix/syscall-template.S", |
scottt
/ pthread_ex
Created
May 29, 2017 18:03
— forked from anonymous/pthread_ex
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| /* Includes */ | |
| #include <unistd.h> /* Symbolic Constants */ | |
| #include <sys/types.h> /* Primitive System Data Types */ | |
| #include <errno.h> /* Errors */ | |
| #include <stdio.h> /* Input/Output */ | |
| #include <stdlib.h> /* General Utilities */ | |
| #include <pthread.h> /* POSIX Threads */ | |
| #include <string.h> /* String handling */ | |
| /* prototype for thread routine */ |
scottt
/ sigsegv-recover-with-setjmp.c
Last active
February 15, 2018 10:41
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| #include <unistd.h> | |
| #include <assert.h> | |
| #include <signal.h> | |
| #include <stdio.h> | |
| #include <stdlib.h> | |
| #include <setjmp.h> | |
| char *c; | |
| sigjmp_buf jbuf; |
scottt
/ sigsegv-recover.c
Last active
May 10, 2017 15:57
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| #ifndef __x86_64__ | |
| #error "This code only works on x86-64." | |
| #endif | |
| #define _GNU_SOURCE | |
| #include <unistd.h> | |
| #include <assert.h> | |
| #ifndef __x86_64__ | |
| #error "This code only works on x86-64." | |
| #endif |
scottt
/ iterate-linked-list.c
Last active
September 19, 2016 01:30
Explaining the Data Dependency Issue Exposed in "A cache miss is not a cache miss"
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| struct pair { int first, int second }; | |
| /* LOAD() is just a pointer dereference. Written this way to make it stand out. */ | |
| #define LOAD(expr) (*(expr)) | |
| void iterate_linked_list(vector) | |
| { | |
| register void *vector_start = vector->start; | |
| register long index = 0; | |
| register long sum = 0; |
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| dyld: loaded: /Users/user/work/chicken-bibi/chicken-bibi/./bibi.app/Contents/MacOS/bibi | |
| dyld: loaded: /Users/user/work/chicken-bibi/chicken-bibi/bibi.app/Contents/MacOS/../Frameworks/QtWidgets.framework/Versions/5/QtWidgets | |
| dyld: loaded: /Users/user/work/chicken-bibi/chicken-bibi/bibi.app/Contents/MacOS/../Frameworks/QtGui.framework/Versions/5/QtGui | |
| dyld: loaded: /Users/user/work/chicken-bibi/chicken-bibi/bibi.app/Contents/MacOS/../Frameworks/QtCore.framework/Versions/5/QtCore | |
| dyld: loaded: /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL | |
| dyld: loaded: /System/Library/Frameworks/AGL.framework/Versions/A/AGL | |
| dyld: loaded: /usr/lib/libc++.1.dylib | |
| dyld: loaded: /usr/lib/libSystem.B.dylib | |
| dyld: loaded: /System/Library/Frameworks/Carbon.framework/Versions/A/Carbon | |
| dyld: loaded: /System/Library/Frameworks/Cocoa.framework/Versions/A/Cocoa |
scottt
/ bin-true-ld.so-processing-log
Last active
April 6, 2021 06:17
Observe mmap operations performed by the dynamic linker by running "gdb -x observe-maps-on-mmap.py"
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| == malloc() | |
| _dl_init_paths() | |
| Catchpoint 1 (syscalls 'mmap' [9] 'mprotect' [10] 'munmap' [11]) | |
| Breakpoint 2 at 0x1650: file src/true.c, line 59. | |
| Catchpoint 1 (call to syscall mmap), 0x00007ffff7df54da in mmap64 () at ../sysdeps/unix/syscall-template.S:84 | |
| 84 T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS) | |
| Catchpoint 1 (returned from syscall mmap), 0x00007ffff7df54da in mmap64 () at ../sysdeps/unix/syscall-template.S:84 |
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| file s | |
| set disable-randomization on | |
| set disassemble-next-line on | |
| # break on call 'swap@plt' in main | |
| break *0x0804857c | |
| break 'swap@plt' | |
| run | |
| si | |
| disassemble 'swap@plt' | |
| printf "\n\ninfo symbol 0x804a014: " |
scottt
/ yahoo-finance.ipynb
Created
January 14, 2016 14:29
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scottt
/ matplotlib-artist-object-api.ipynb
Last active
November 25, 2015 05:48
Matplotlib Artist Object API
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