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gcc -g

gcc -g creates information suitable for debbuging a program with gdb.

Because a program should not be altered in any way when debugging information is added, the creators of gcc don't want have a specially defined macro when compiling with -g.

Some options

Some -g related options are:

-g: Generate default debug info (DWARF)
-g3: Include info for macros.
-ggdb: Add specific GDB information.
-gdwarf[234]: DWARF 2, 3 or 4 info
-gstrict-dwarf: No extensions from later DWARF.
-gbtf: Add BTF (which is the default format for eBPF) info.
-gctf

Fatal error: Uncaught PDOException: SQLSTATE[HY000]: General error: 8 attempt to write a readonly database in /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php:78 Stack trace: #0 /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php(78): PDOStatement->execute(Array) #1 /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php(30): insert_webrequest_('/notes/developm...', 1759398266, '216.73.216.42', 'Mozilla/5.0 App...', NULL) #2 /home/httpd/vhosts/renenyffenegger.ch/httpsdocs/notes/development/languages/C-C-plus-plus/GCC/options/g/index(57): insert_webrequest() #3 {main} thrown in /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php on line 78

gcc -g

Some options

See also