TODO.md

TODO

• outputiterator conversion

• http://stackoverflow.com/questions/1263710/minimal-linux-distrobution-with-sdl-support-and-no-xwindows

• http://raspberrypi.stackexchange.com/questions/41568/how-to-connect-and-use-ssh-without-a-screen-using-buildroot

  • http://unix.stackexchange.com/questions/205271/sshd-not-starting-after-boot-on-embedded-linux-built-with-buildroot

• wayland

• index filter out my article downvotes, maybe find a way to include them

• http://stackoverflow.com/questions/5906993/what-is-a-normal-in-opengl/36087311#36087311 draw normal diagram with angle, say that glortho is deprecated and point people to shaders

---

• improve IO bound: networking, GPU
• CV. TODO: download texlive full.
• add multiple frequency graph to audio encoding answer
• review korean + jiaozi
• opencl pixel calculation + fast to screen display. Compare to naive SDL. See also OpenGL/TODO.md.
• http://stackoverflow.com/questions/3413470/what-is-stdmove-and-when-should-it-be-used Minimal example.
• http://stackoverflow.com/questions/27604455/is-android-posix-compatible
• http://stackoverflow.com/questions/9339429/what-does-cherry-picking-a-commit-with-git-mean
• add public key to website
  • also mention ctags --extra=+f, which solves the problem completely!
• http://stackoverflow.com/questions/3321514/what-are-intent-filters-in-android minimal example
• Frame examples. TODO: do something interesting with them.
  • http://stackoverflow.com/questions/5710573/need-a-fragments-example
  • http://stackoverflow.com/questions/5159982/how-do-i-add-a-fragment-to-an-activity-with-a-programmatically-created-content-v
• android R. Show android.R. Get several examples working, e.g. layout, string.
  • http://stackoverflow.com/questions/4953077/android-what-is-r-why-is-it-so-cryptic
  • http://stackoverflow.com/questions/6804053/understand-the-r-class-in-android
• http://venturebeat.com/2015/07/24/firefox-is-getting-audio-indicators-to-show-noisy-tabs-and-will-let-you-mute-them/
• https://en.wikipedia.org/wiki/Alfresco_%28software%29 example of open source proprietary
  • http://superuser.com/questions/531735/is-there-a-way-to-indicate-which-firefox-tab-is-making-sounds
• stack overflow
  • http://stackoverflow.com/posts/18431262/revisions add to upstream
  • swig
    • http://stackoverflow.com/questions/1153577/integrate-python-and-c
    • http://stackoverflow.com/questions/4596484/wrapping-a-c-class-in-python-using-swig
    • http://stackoverflow.com/questions/8168517/generating-java-interface-with-swig
  • android
    • http://askubuntu.com/questions/318246/complete-installation-guide-for-android-sdk-adt-bundle-on-ubuntu
      • http://stackoverflow.com/questions/17963508/how-to-install-android-sdk-build-tools-on-the-command-line
    • create project with gradle (default is ant):
      • http://stackoverflow.com/questions/17470831/how-to-use-gradle-to-generate-eclipse-and-intellij-project-files-for-android-pro
    • compile project
      • http://stackoverflow.com/questions/15285331/how-to-compile-apk-from-command-line . Improve info there:
        • debug mode
        • where the files are generated
        • build.xml can also be generated with android create project.
    • install apk. Answer with insufficient permissions:
      • http://stackoverflow.com/questions/7076240/install-an-apk-file-from-command-prompt
      • http://android.stackexchange.com/questions/12961/command-to-install-app-from-phone
    • run with ant http://stackoverflow.com/questions/9026152/how-to-run-an-android-app-on-the-device-with-ant
    • insufficient permissions
      • http://stackoverflow.com/questions/9350666/how-to-usb-connect-android-devices-with-adb-under-ubuntu
      • http://stackoverflow.com/questions/5510284/adb-devices-command-not-working
      • http://android.stackexchange.com/questions/74658/error-insufficient-permissions-for-device-how-to-add-permissions
    • find CLI for android platform installation:
      • http://stackoverflow.com/questions/18068920/android-studio-failed-to-find-target-android-18
      • http://stackoverflow.com/questions/33330964/error-failed-to-find-target-with-hash-string-android-21
      • http://stackoverflow.com/questions/32715418/failed-to-find-target-with-hash-string-android-22
• TODO why noh gvim fails?
• minimize OpenGL offscreen example

Secondary

• what is SQL VACUUM?

• answer the other casperjs js not working question

• query that finds all users with no posts but more than 15 rep

• how linux sleep works?

  • http://stackoverflow.com/questions/175882/whats-the-algorithm-behind-sleep/33639161#33639161

• GDB QEMU SMP

• make segmentation base offset work and answer: http://stackoverflow.com/questions/3819699/what-does-ds40207a-mean-in-assembly, link to http://stackoverflow.com/questions/4119504/real-mode-memory-addressing-explanation/33581044#33581044

• how to run UEFI hello world?

• PIT 32-bit

• http://stackoverflow.com/questions/15275059/whats-the-purpose-of-x86-cr0-wp-bit

• http://stackoverflow.com/questions/14361248/whats-the-difference-of-section-and-segment-in-elf-file-format

• http://stackoverflow.com/questions/11247098/how-to-put-2-sections-in-1-segment-using-ld-scripts?rq=1

  http://stackoverflow.com/questions/7863200/why-data-and-stack-segments-are-executable?rq=1

  http://stackoverflow.com/questions/11884630/segments-within-a-executable-c-program?rq=1

  http://stackoverflow.com/questions/7863200/why-data-and-stack-segments-are-executable?rq=1

• contact archiv.org, tell them to add article issues

• https://reverseengineering.stackexchange.com/questions/5/how-are-x86-cpu-instructions-encoded

• lea 8 and 16 bit

  http://stackoverflow.com/questions/2716142/80x86-16-bit-asm-lea-cx-cx8cx-causes-error-on-nasm-compiling-com-file

  http://stackoverflow.com/questions/8290865/asm-compile-issue

  http://stackoverflow.com/questions/8290987/asm-error-message-rax-edx-4-is-not-a-valid-base-index-expression

• http://stackoverflow.com/questions/2030366/what-do-the-brackets-mean-in-x86-asm answer with general form s:[a + b*c + d]

  http://stackoverflow.com/questions/10362511/basic-use-of-immediates-square-brackets-in-x86-assembly-and-yasm?lq=1

• list functions GDB python walk

  • gdb python my tree walk improvement on stack overflow answer

• http://superuser.com/questions/130955/how-to-install-grub-into-an-img-file

  http://unix.stackexchange.com/questions/163791/place-grub-on-virtual-disk

  http://askubuntu.com/questions/180023/can-i-install-grub-on-an-usb-and-make-it-a-rescue-disk

  http://askubuntu.com/questions/152535/why-cant-i-install-grub-on-my-usb-drive

  https://wiki.archlinux.org/index.php/GRUB#Install_to_external_USB_stick

  • http://askubuntu.com/questions/10571/how-to-install-grub-on-usb-flash-drive reply comment there

• implement nslookup with posix

  http://stackoverflow.com/questions/2157592/how-does-getaddrinfo-do-dns-lookup which system call?

• http://stackoverflow.com/questions/8878716/what-is-the-difference-between-hardware-and-software-breakpoints

  • create hardware breakpoints manually
  • example of hardware and software breakpoints (ptrace and hardware in assembly)
  • cpuinfo that enables hardware

• libcc1 example

• https://breaz.io/

• PR gas doc .data vs .section

• Answer with minimal examples:

  http://stackoverflow.com/questions/4690300/how-to-make-an-bootable-isonot-cd-or-flash-drive-for-testing-your-own-boot-loa?rq=1

  http://stackoverflow.com/questions/14432260/where-is-the-os-stored-on-disk-and-how-does-the-boot-loader-locate-it?rq=1

  http://stackoverflow.com/questions/24692797/how-does-a-bootstrap-program-do-dual-booting-of-os?rq=1

  http://stackoverflow.com/questions/2058690/what-is-significance-of-memory-at-00007c00-to-booting-sequence?rq=1

  http://stackoverflow.com/questions/3743134/where-is-there-good-information-about-low-level-pc-booting?rq=1

Kernel

• http://unix.stackexchange.com/questions/145557/how-does-stack-allocation-work-in-linux

  mm/fault.c:
      do_page_fault
      __do_page_fault
  mm/mmap.c:
      expand_stack.c
      expand_downwards
      acct_stack_growth
  
          if (actual_size > READ_ONCE(rlim[RLIMIT_STACK].rlim_cur))
              return -ENOMEM;
  

http://superuser.com/questions/294681/how-does-a-computer-restart-itself

Pings

Friday:

• https://sourceware.org/ml/gdb-patches/2015-07/threads.html#00932 Testsuite docs: explain ptrace_scope and core_pattern requirements

  Add latest prelink.

GCC

• http://stackoverflow.com/questions/10483544/stopping-at-the-first-machine-code-instruction-in-gdb

  Use actual kernel RIP as starting point.

• http://stackoverflow.com/questions/4060565/how-to-script-gdb-with-python-example-add-breakpoints-run-what-breakpoint-d

  http://stackoverflow.com/questions/14698086/gdb-python-scripting-any-samples-iterating-through-c-c-struct-fields

  http://stackoverflow.com/questions/764382/how-to-print-the-next-n-executed-lines-automatically-in-gdb?lq=1

  http://stackoverflow.com/questions/763891/print-complete-control-flow-through-gdb-including-values-of-variables?lq=1

  http://stackoverflow.com/questions/6517423/do-specific-action-when-certain-breakpoint-hits-in-gdb

  http://stackoverflow.com/questions/13935443/gdb-scripting-execute-commands-at-selected-breakpoint?lq=1

  http://stackoverflow.com/questions/17893554/printing-current-line-of-source-at-breakpoint-in-gdb

  http://stackoverflow.com/questions/30013252/get-all-global-variables-local-variables-in-gdbs-python-interface

  http://stackoverflow.com/questions/30443227/in-the-gdb-debugger-is-it-possible-to-get-the-function-to-source-file-mapping

  http://stackoverflow.com/questions/14031930/break-on-instruction-with-specific-opcode-in-gdb

  Function calls

  • http://stackoverflow.com/questions/311840/tool-to-trace-local-function-calls-in-linux?lq=1

  • http://stackoverflow.com/questions/9549693/gdb-list-of-all-function-calls-made-in-an-application

  • http://stackoverflow.com/questions/311948/make-gdb-print-control-flow-of-functions-as-they-are-called

  http://stackoverflow.com/questions/5480868/how-to-call-assembly-in-gdb

  http://stackoverflow.com/questions/17522307/getting-the-addresses-of-all-currently-used-variables-with-gdb?rq=1 consider .so variables

• arithmetic simplifications: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=30475

  TODO find a "x + 10 > x" SO question I've seen once

  i = time % 10; if (i == 11)

• Builtin function stuff

  • http://stackoverflow.com/questions/21106801/why-is-memcmp-so-much-faster-than-a-for-loop-check http://stackoverflow.com/questions/20734934/why-is-strcmp-so-much-faster-than-my-function

  • http://stackoverflow.com/questions/2049412/do-math-functions-of-constant-expressions-get-pre-calculated-at-compile-time

  • http://stackoverflow.com/questions/30340787/undefined-reference-to-pow-when-the-exponent-is-changed?lq=1

  • http://stackoverflow.com/questions/9920789/literal-constant-vs-variable-in-math-library

  • gcc memcmp http://stackoverflow.com/questions/855895/intrinsic-memcmp/6334452#6334452

  • http://stackoverflow.com/questions/2284860/how-does-c-compute-sin-and-other-math-functions

• http://stackoverflow.com/questions/14067547/how-switch-case-statement-implemented-or-works-internally

• http://stackoverflow.com/questions/8841865/how-does-gcc-optimize-a-simple-loop answer with intermediate optimization pass steps

• GCC read source of -fomit-frame-pointer and answer http://stackoverflow.com/questions/14666665/trying-to-understand-gcc-option-fomit-frame-pointer

• how malloc works

  http://stackoverflow.com/questions/1119134/how-do-malloc-and-free-work

  http://www.quora.com/How-do-the-brk-and-mmap-system-calls-work-in-the-Linux-kernel interpreting glibc

• GDB multi-thread

• movabs instruction encoding

  • http://reverseengineering.stackexchange.com/questions/2627/what-is-the-meaning-of-movabs-in-gas-x86-att-syntax
  • http://stackoverflow.com/questions/19415184/load-from-a-64-bit-address-into-other-register-than-rax
  • http://stackoverflow.com/questions/4182210/x86-64-assembly

GDB

• packet reply is too long kernel debugging https://sourceware.org/bugzilla/show_bug.cgi?id=13984#add_comment

• don't run https://sourceware.org/bugzilla/show_bug.cgi?id=18704

C++

http://comments.gmane.org/gmane.comp.gcc.help/38052

Java

• java remove from list

Some day

• Ask why ignoring can lead to errors. Link to http://stackoverflow.com/questions/1654923/in-the-13-years-that-java-has-been-around-are-there-any-specific-examples-of-ba in the process

• http://stackoverflow.com/questions/313584/what-is-the-concept-of-erasure-in-generics-in-java, http://stackoverflow.com/questions/339699/java-generics-type-erasure-when-and-what-happens?lq=1

C

Java

• weak reference
• JMM http://zeroturnaround.com/rebellabs/concurrency-torture-testing-your-code-within-the-java-memory-model/

Hardware

• http://stackoverflow.com/questions/3928995/how-do-cache-lines-work
• http://en.wikipedia.org/wiki/Branch_predictor

Eclipse

• Eclim redo with count
• multiple shortcuts per action
• EGit issue: turn off blame should be the same as turn it on!
• debug go to breakpoint after the first one
• Vrapper very magic search
• add word under cursor to dictionary

Vim

Git

• automatically set upstream on new branches to be the same as to the current branch
• understand autosetuprebase

Misc

• Krusader: focus second item (not the ..) by default if one exists. Amazing when there is a single directory inside a directory.
• Guake rename tab not working