Debug(3) - phpMan

Test2::EventFacet::Trace (3pm) - Debug information for events
__after_morecore_hook (3) - malloc debugging variables
__free_hook (3)      - malloc debugging variables
__malloc_hook (3)    - malloc debugging variables
__malloc_initialize_hook (3) - malloc debugging variables
__memalign_hook (3)  - malloc debugging variables
__realloc_hook (3)   - malloc debugging variables
B::Debug (3pm)       - Walk Perl syntax tree, printing debug info about ops
backtrace (3)        - support for application self-debugging
backtrace_symbols (3) - support for application self-debugging
backtrace_symbols_fd (3) - support for application self-debugging
BIO_debug_callback (3ssl) - BIO callback functions
CPAN::Debug (3pm)    - internal debugging for CPAN.pm
CRYPTO_mem_debug_pop (3ssl) - Memory allocation functions
CRYPTO_mem_debug_push (3ssl) - Memory allocation functions
CRYPTO_set_mem_debug (3ssl) - Memory allocation functions
DB (3pm)             - programmatic interface to the Perl debugging API
dbus-monitor (1)     - debug probe to print message bus messages
debugfs (8)          - ext2/ext3/ext4 file system debugger
debuginfo-install (1) - redirecting to DNF debuginfo-install Plugin
debuginfod-client-config (7) - debuginfod client environment variables, cache...
debuginfod-find (1)  - request debuginfo-related data
Devel::Peek (3pm)    - A data debugging tool for the XS programmer
dnf-debug (8)        - DNF debug Plugin
dnf-debuginfo-install (8) - DNF debuginfo-install Plugin
fwupdate (1)         - debugging utility for UEFI firmware updates
git-check-ignore (1) - Debug gitignore / exclude files
iprdbg (8)           - IBM Power RAID storage adapter debug utility
LWP::Debug (3pm)     - deprecated
Mail::SpamAssassin::Util::DependencyInfo (3pm) - spamassassin debugging helpers
malloc_hook (3)      - malloc debugging variables
OPENSSL_mem_debug_pop (3ssl) - Memory allocation functions
OPENSSL_mem_debug_push (3ssl) - Memory allocation functions
pam_debug (8)        - PAM module to debug the PAM stack
perldebguts (1)      - Guts of Perl debugging
perldebtut (1)       - Perl debugging tutorial
perldebug (1)        - Perl debugging
Pod::Simple::Debug (3pm) - - put Pod::Simple into trace/debug mode
systemd-analyze (1)  - Analyze and debug system manager
systemd-debug-generator (8) - Generator for enabling a runtime debug shell an...
systemd-nspawn (1)   - Spawn a namespace container for debugging, testing and...
xfs_db (8)           - debug an XFS filesystem
xfs_io (8)           - debug the I/O path of an XFS filesystem
XML::Parser::Style::Debug (3pm) - Debug style for XML::Parser
yum-debug-dump (1)   - redirecting to DNF debug Plugin
yum-debug-restore (1) - redirecting to DNF debug Plugin