linux开发调试环境下的内核配置

1、针对常用的linux开发环境，汇总了debug所需的内核配置kgdb:

#CONFIG_STRICT_KERNEL_RWX is not set
#CONFIG_STRICT_MODULE_RWX is not set
CONFIG_FRAME_POINTER=y
CONFIG_KGDB=y
CONFIG_KGDB_SERIAL_CONSOLE=y
CONFIG_KGDB_KDB=y
CONFIG_DEBUG_INFO=y
CONFIG_KDB_KEYBOARD=y
# CONFIG_RANDOMIZE_BASE is not set

2、模块调试，可以打开如下选项：

CONFIG_DEBUG_KERNEL
CONFIG_DEBUG_SLAB
CONFIG_DEBUG_PAGEALLOC
CONFIG_DEBUG_SPINLOCK
CONFIG_DEBUG_SPINLOCK_SLEEP
CONFIG_INIT_DEBUG
CONFIG_DEBUG_INFO
CONFIG_MAGIC_SYSRQ
CONFIG_DEBUG_STACKOVERFLOW
CONFIG_DEBUG_STACK_USAGE
CONFIG_KALLSYMS
CONFIG_IKCONFIG
CONFIG_IKCONFIG_PROC
CONFIG_ACPI_DEBUG
CONFIG_DEBUG_DRIVER
CONFIG_SCSI_CONSTANTS
CONFIG_INPUT_EVBUG
CONFIG_PROFILING

3、ebpf，打开如下选项：

CONFIG_BPF=y
CONFIG_BPF_SYSCALL=y
# [optional, for tc filters]
CONFIG_NET_CLS_BPF=m
# [optional, for tc actions]
CONFIG_NET_ACT_BPF=m
CONFIG_BPF_JIT=y
CONFIG_HAVE_BPF_JIT=y
# [optional, for kprobes]
CONFIG_BPF_EVENTS=y
There are a few optional kernel flags needed for running bcc networking examples on vanilla kernel:
CONFIG_NET_SCH_SFQ=m
CONFIG_NET_ACT_POLICE=m
CONFIG_NET_ACT_GACT=m
CONFIG_DUMMY=m
CONFIG_VXLAN=m

Linux内核调试方法总结

https://my.oschina.net/fgq611/blog/113249#OSC_h3_1

https://www.cnblogs.com/alantu2018/p/8997149.html

Linux journalctl命令使用

https://www.cnblogs.com/sparkdev/p/8795141.html