Remember to cover the basics, that is, what you expected to happen and what in fact did happen. You don't know how to make a good report? See
https://orgmode.org/manual/Feedback.html#Feedback Your bug report will be posted to the Org mailing list. ------------------------------------------------------------------------ It follows a possible org chunk that reproduce the phantom newlines that are created while trying to move a headline from a state where there are no newlines between the headers. * Linux system programming ** What is a product Standard ? :posix:sus: <<lsb>> *** Unix characteristics **** Portability One *** Standard Makefile Targets ** Headers How to find the include paths used by the gcc compiler ? ... ** Keyboard A scancode is the lowest identification number for a key, evtest - Input device event monitor and query tool *** Extra keyboard keys Many ** Time *** Check current time-date-timezone n ** References/Example_code *** TLPI book's code (The Linux Programming Interface) **** DONE TOsDO Socket stream example CLOSED: [2017-01-11 Τετ 06:29] Sockets $ gcc -g -o us_xfr_cl us_xfr_cl.c -L../lib -I../lib/ ../lib/error_functions.o $ gcc -g -o us_xfr_sv us_xfr_sv.c -L../lib -I../lib/ ../lib/error_functions.o http://man7.org/tlpi/ ** Utilities *** strace strace traces and logs all system calls issued by a program along with their return codes. In this way, you can watch how a program interacts with the system, which is useful for tracking down behavioural issues. ss strace -c foo_obj // generate stats of syscalls *** pmap $ foo & [pid] $ pmap pid *** objdump objdump is a program for displaying various information about object files. For instance, it can be used as a disassembler to view an executable in assembly form. It is part of the GNU Binutils for fine-grained control over executables and other binary data. $ objdump -f foo_obj // see information related to the overall file header , like file format $ objdump -h foo_ob // Dumping the section headers from the ELF executable // If the ELF executable contains debug symbols will contain // section with names beginning with .debug_ - these are // ldthe DWARF debugging sections 26 .debug_aranges 00000020 00000000 00000000 00001037 CONTENTS, READONLY, DEBUGGING 27 .debug_pubnames 00000028 00000000 00000000 00001057 CONTENTS, READONLY, DEBUGGING 28 .debug_info 000000cc 00000000 00000000 0000107f CONTENTS, READONLY, DEBUGGING 29 .debug_abbrev 0000008a 00000000 00000000 0000114b CONTENTS, READONLY, DEBUGGING 30 .debug_line 0000006b 00000000 00000000 000011d5 CONTENTS, READONLY, DEBUGGING 31 .debug_frame 00000044 00000000 00000000 00001240 CONTENTS, READONLY, DEBUGGING 32 .debug_str 000000ae 00000000 00000000 00001284 CONTENTS, READONLY, DEBUGGING 33 .debug_loc 00000058 00000000 00000000 00001332 CONTENTS, READONLY, DEBUGGING The first number seen for each section here is its size, and the last is the offset where it begins in the ELF file. The debugger uses this information to read the section from the executable $ objdump --dwarf=info foo_obj // display the DWARF debug_info section //This is why DWARF encodes a full mapping between lines in the C source code //and machine code addresses in the executable. This information is contained in //the .debug_line section and can be extracted in a readable form as follows: $ objdump --dwarf=decodedline foo_obj // display http://eli.thegreenplace.net/2011/02/07/how-debuggers-work-part-3-debugging-information/ Emacs : GNU Emacs 27.1 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.24, cairo version 1.16.0) of 2021-03-28, modified by Debian Package: Org mode version 9.6-pre ( @ /home/chomwitt/.config/emacs/elpa/org-9.6pre0.20221110.85807/) current state: ============== (setq org-src-mode-hook '(org-src-babel-configure-edit-buffer org-src-mode-configure-edit-buffer) org-link-shell-confirm-function 'yes-or-no-p org-metadown-hook '(org-babel-pop-to-session-maybe) org-persist-before-write-hook '(org-element--cache-persist-before-write) org-mode-hook '(#[0 "\300\301\302\303\304$\207" [add-hook change-major-mode-hook org-fold-show-all append local] 5] #[0 "\300\301\302\303\304$\207" [add-hook change-major-mode-hook org-babel-show-result-all append local] 5] org-babel-result-hide-spec org-babel-hide-all-hashes) org-archive-hook '(org-attach-archive-delete-maybe) org-persist-before-read-hook '(org-element--cache-persist-before-read) org-confirm-elisp-link-function 'yes-or-no-p org-startup-with-inline-images t org-agenda-before-write-hook '(org-agenda-add-entry-text) org-metaup-hook '(org-babel-load-in-session-maybe) org-persist-after-read-hook '(org-element--cache-persist-after-read) org-bibtex-headline-format-function #[257 "\300\236A\207" [:title] 3 "\n\n(fn ENTRY)"] org-babel-pre-tangle-hook '(save-buffer) org-tab-first-hook '(org-babel-hide-result-toggle-maybe org-babel-header-arg-expand) org-cycle-tab-first-hook '(org-babel-hide-result-toggle-maybe org-babel-header-arg-expand) org-agenda-loop-over-headlines-in-active-region nil org-fold-core-isearch-open-function 'org-fold--isearch-reveal org-occur-hook '(org-first-headline-recenter) org-cycle-hook '(org-cycle-hide-archived-subtrees org-cycle-show-empty-lines org-cycle-optimize-window-after-visibility-change org-cycle-display-inline-images) org-speed-command-hook '(org-speed-command-activate org-babel-speed-command-activate) org-export-before-parsing-hook '(org-attach-expand-links) org-confirm-shell-link-function 'yes-or-no-p org-link-parameters '(("attachment" :follow org-attach-follow :complete org-attach-complete-link) ("id" :follow org-id-open) ("eww" :follow org-eww-open :store org-eww-store-link) ("rmail" :follow org-rmail-open :store org-rmail-store-link) ("mhe" :follow org-mhe-open :store org-mhe-store-link) ("irc" :follow org-irc-visit :store org-irc-store-link :export org-irc-export) ("info" :follow org-info-open :export org-info-export :store org-info-store-link :insert-description org-info-description-as-command) ("gnus" :follow org-gnus-open :store org-gnus-store-link) ("docview" :follow org-docview-open :export org-docview-export :store org-docview-store-link) ("bibtex" :follow org-bibtex-open :store org-bibtex-store-link) ("bbdb" :follow org-bbdb-open :export org-bbdb-export :complete org-bbdb-complete-link :store org-bbdb-store-link) ("w3m" :store org-w3m-store-link) ("doi" :follow org-link-doi-open :export org-link-doi-export) ("file+sys") ("file+emacs") ("shell" :follow org-link--open-shell) ("news" :follow #[514 "\301\300\302Q\"\207" ["news" browse-url ":"] 6 "\n\n(fn URL ARG)"]) ("mailto" :follow #[514 "\301\300\302Q\"\207" ["mailto" browse-url ":"] 6 "\n\n(fn URL ARG)"]) ("https" :follow #[514 "\301\300\302Q\"\207" ["https" browse-url ":"] 6 "\n\n(fn URL ARG)"]) ("http" :follow #[514 "\301\300\302Q\"\207" ["http" browse-url ":"] 6 "\n\n(fn URL ARG)"]) ("ftp" :follow #[514 "\301\300\302Q\"\207" ["ftp" browse-url ":"] 6 "\n\n(fn URL ARG)"]) ("help" :follow org-link--open-help :store org-link--store-help) ("file" :complete org-link-complete-file) ("elisp" :follow org-link--open-elisp)) org-link-elisp-confirm-function 'yes-or-no-p )