Search notes:

arch/x86/include/generated/asm/syscalls_64.h

The content of arch/x86/include/generated/asm/syscalls_64.h basically looks like: 
__SYSCALL(0, sys_read)
__SYSCALL(1, sys_write)
__SYSCALL(2, sys_open)
__SYSCALL(3, sys_close)
…
This file is included from arch/x86/entry/syscall_64.c and arch/x86/um/sys_call_table_64.c to provide the values for sys_call_table[].

Different numbering in syscalls_32.h

syscalls_64.h has a different numbering from syscalls_32.h because it was renumbered to optimize it at cachline level.

See also

sys calls

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/ke...', 1788418310, '216.73.217.21', 'Mozilla/5.0 App...', NULL) #2 /home/httpd/vhosts/renenyffenegger.ch/httpsdocs/notes/Linux/kernel/source/arch/x86/include/generated/asm/syscalls_64_h(49): insert_webrequest() #3 {main} thrown in /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php on line 78