diff options
| author | Tiezhu Yang <yangtiezhu@loongson.cn> | 2021-03-08 14:48:18 +0800 |
|---|---|---|
| committer | Thomas Bogendoerfer <tsbogend@alpha.franken.de> | 2021-03-10 15:30:14 +0100 |
| commit | 043d7f9713b765f26b4341528d96931eb5446653 (patch) | |
| tree | dfc9a27a67001da1901cf4000715b8e7b098ff41 /arch/mips/configs/loongson3_defconfig | |
| parent | c024e8f665c92ccbdd389643f3dd9342297810ee (diff) | |
MIPS: Enable some missed configs in loongson3_defconfig to support bpftrace
bpftrace is a high-level tracing language for Linux enhanced Berkeley
Packet Filter (eBPF) available in recent Linux kernels (4.x). bpftrace
uses LLVM as a backend to compile scripts to BPF-bytecode and makes use
of BCC for interacting with the Linux BPF system, as well as existing
Linux tracing capabilities: kernel dynamic tracing (kprobes), user-level
dynamic tracing (uprobes), and tracepoints.
According to Linux Kernel Requirements in bpftrace/INSTALL.md [1], the
kernel needs to be built with the following options:
CONFIG_BPF=y
CONFIG_BPF_SYSCALL=y
CONFIG_BPF_JIT=y
CONFIG_HAVE_EBPF_JIT=y
CONFIG_BPF_EVENTS=y
CONFIG_FTRACE_SYSCALLS=y
CONFIG_FUNCTION_TRACER=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_DYNAMIC_FTRACE=y
CONFIG_HAVE_KPROBES=y
CONFIG_KPROBES=y
CONFIG_KPROBE_EVENTS=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_UPROBES=y
CONFIG_UPROBE_EVENTS=y
CONFIG_DEBUG_FS=y
So enable some missed configs in loongson3_defconfig to make sure
the above configs are set after make loongson3_defconfig.
[1] https://github.com/iovisor/bpftrace/blob/master/INSTALL.md
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Diffstat (limited to 'arch/mips/configs/loongson3_defconfig')
| -rw-r--r-- | arch/mips/configs/loongson3_defconfig | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/mips/configs/loongson3_defconfig b/arch/mips/configs/loongson3_defconfig index e9081dd3ab20..77f6a3551f46 100644 --- a/arch/mips/configs/loongson3_defconfig +++ b/arch/mips/configs/loongson3_defconfig @@ -26,6 +26,7 @@ CONFIG_SCHED_AUTOGROUP=y CONFIG_SYSFS_DEPRECATED=y CONFIG_RELAY=y CONFIG_BLK_DEV_INITRD=y +CONFIG_BPF_SYSCALL=y CONFIG_EMBEDDED=y CONFIG_PERF_EVENTS=y CONFIG_MACH_LOONGSON64=y @@ -39,6 +40,7 @@ CONFIG_MIPS32_O32=y CONFIG_MIPS32_N32=y CONFIG_VIRTUALIZATION=y CONFIG_KVM=m +CONFIG_KPROBES=y CONFIG_MODULES=y CONFIG_MODULE_FORCE_LOAD=y CONFIG_MODULE_UNLOAD=y @@ -128,6 +130,7 @@ CONFIG_L2TP=m CONFIG_BRIDGE=m CONFIG_VSOCKETS=m CONFIG_VIRTIO_VSOCKETS=m +CONFIG_BPF_JIT=y CONFIG_CFG80211=m CONFIG_CFG80211_WEXT=y CONFIG_MAC80211=m @@ -404,8 +407,10 @@ CONFIG_CRYPTO_DEFLATE=m CONFIG_PRINTK_TIME=y CONFIG_STRIP_ASM_SYMS=y CONFIG_MAGIC_SYSRQ=y +CONFIG_DEBUG_FS=y # CONFIG_SCHED_DEBUG is not set # CONFIG_DEBUG_PREEMPT is not set -# CONFIG_FTRACE is not set +CONFIG_FUNCTION_TRACER=y +CONFIG_FTRACE_SYSCALLS=y CONFIG_CMDLINE_BOOL=y CONFIG_CMDLINE="ieee754=relaxed" |