Search notes:

/usr/lib/crt1.o

This object file contains the _start entry point which bootstraps execution of a program (and eventually calls main()).
The GNU lib c defines it in sysdeps/x86_64/elf/start.S.

See also

/usr/lib/crtn.o
Compare with the Windows CRT startup code in crt0.c
main()
gcc -nostdlib
Apparently, crt1.o is sometimes also found under /usr/lib/x86_64-linux-gnu.
/usr/lib

Index

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/Linux/fh...', 1758209405, '216.73.216.150', 'Mozilla/5.0 App...', NULL) #2 /home/httpd/vhosts/renenyffenegger.ch/httpsdocs/notes/Linux/fhs/usr/lib/crt1_o(54): insert_webrequest() #3 {main} thrown in /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php on line 78