search for: __kprobe

On Wed, Nov 20, 2013 at 04:22:21AM +0000, Masami Hiramatsu wrote: > Use NOKPROBE_SYMBOL macro to protect functions from kprobes > instead of __kprobes annotation in trap.c. > This also applies __always_inline annotation for some cases, > because NOKPROBE_SYMBOL() will inhibit inlining by referring > the symbol address. NOKPROBE_SYMBOL seems to add a reference from some variable to the function? With LTO we can optimize away unused fun...

On Wed, Nov 20, 2013 at 04:22:21AM +0000, Masami Hiramatsu wrote: > Use NOKPROBE_SYMBOL macro to protect functions from kprobes > instead of __kprobes annotation in trap.c. > This also applies __always_inline annotation for some cases, > because NOKPROBE_SYMBOL() will inhibit inlining by referring > the symbol address. NOKPROBE_SYMBOL seems to add a reference from some variable to the function? With LTO we can optimize away unused fun...

...to catch up the kernel update. To solve this issue, I've introduced NOKPROBE_SYMBOL() macro for making kprobe blacklist at build time. Since the NOKPROBE_SYMBOL() macros can be placed right after the function is defined (as like as EXPORT_SYMBOL), it is easy to maintain. This series replaces __kprobes with NOKPROBE_SYMBOL() macro or apply __always_inline annotation for some cases, because NOKPROBE_SYMBOL() will inhibit inlining by referring the symbol address. :( At this point, I replaced all __kprobes under kernel/ and arch/x86. For future work, I'd like to replace all the __kprobes annot...

...to catch up the kernel update. To solve this issue, I've introduced NOKPROBE_SYMBOL() macro for making kprobe blacklist at build time. Since the NOKPROBE_SYMBOL() macros can be placed right after the function is defined (as like as EXPORT_SYMBOL), it is easy to maintain. This series replaces __kprobes with NOKPROBE_SYMBOL() macro or apply __always_inline annotation for some cases, because NOKPROBE_SYMBOL() will inhibit inlining by referring the symbol address. :( At this point, I replaced all __kprobes under kernel/ and arch/x86. For future work, I'd like to replace all the __kprobes annot...

...on and is hard to catch up the kernel update. To solve this issue, I've tried to implement new NOKPROBE_SYMBOL() macro for making kprobe blacklist at build time. Since the NOKPROBE_SYMBOL() macros can be placed right after the function is defined, it is easy to maintain. This series replaces __kprobes with NOKPROBE_SYMBOL() macro or apply __always_inline annotation for some cases, because NOKPROBE_SYMBOL() will inhibit inlining by referring the symbol address. :( In this series, I replaced all __kprobes under kernel/ and arch/x86. For future work, I'd like to replace all the __kprobes anno...

...on and is hard to catch up the kernel update. To solve this issue, I've tried to implement new NOKPROBE_SYMBOL() macro for making kprobe blacklist at build time. Since the NOKPROBE_SYMBOL() macros can be placed right after the function is defined, it is easy to maintain. This series replaces __kprobes with NOKPROBE_SYMBOL() macro or apply __always_inline annotation for some cases, because NOKPROBE_SYMBOL() will inhibit inlining by referring the symbol address. :( In this series, I replaced all __kprobes under kernel/ and arch/x86. For future work, I'd like to replace all the __kprobes anno...