| Message ID | 20240421194206.1010934-2-jolsa@kernel.org (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | uprobe: uretprobe speed up | expand |
On 04/21, Jiri Olsa wrote: > > arch/x86/entry/syscalls/syscall_64.tbl | 1 + > include/linux/syscalls.h | 2 ++ > include/uapi/asm-generic/unistd.h | 5 ++++- > kernel/sys_ni.c | 2 ++ > 4 files changed, 9 insertions(+), 1 deletion(-) Reviewed-by: Oleg Nesterov <oleg@redhat.com>
On Sun, Apr 21, 2024 at 12:42 PM Jiri Olsa <jolsa@kernel.org> wrote: > > Wiring up uretprobe system call, which comes in following changes. > We need to do the wiring before, because the uretprobe implementation > needs the syscall number. > > Note at the moment uretprobe syscall is supported only for native > 64-bit process. > > Signed-off-by: Jiri Olsa <jolsa@kernel.org> > --- > arch/x86/entry/syscalls/syscall_64.tbl | 1 + > include/linux/syscalls.h | 2 ++ > include/uapi/asm-generic/unistd.h | 5 ++++- > kernel/sys_ni.c | 2 ++ > 4 files changed, 9 insertions(+), 1 deletion(-) > LGTM Acked-by: Andrii Nakryiko <andrii@kernel.org> > diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl > index 7e8d46f4147f..af0a33ab06ee 100644 > --- a/arch/x86/entry/syscalls/syscall_64.tbl > +++ b/arch/x86/entry/syscalls/syscall_64.tbl > @@ -383,6 +383,7 @@ > 459 common lsm_get_self_attr sys_lsm_get_self_attr > 460 common lsm_set_self_attr sys_lsm_set_self_attr > 461 common lsm_list_modules sys_lsm_list_modules > +462 64 uretprobe sys_uretprobe > > # > # Due to a historical design error, certain syscalls are numbered differently > diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h > index e619ac10cd23..5318e0e76799 100644 > --- a/include/linux/syscalls.h > +++ b/include/linux/syscalls.h > @@ -972,6 +972,8 @@ asmlinkage long sys_lsm_list_modules(u64 *ids, u32 *size, u32 flags); > /* x86 */ > asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on); > > +asmlinkage long sys_uretprobe(void); > + > /* pciconfig: alpha, arm, arm64, ia64, sparc */ > asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn, > unsigned long off, unsigned long len, > diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h > index 75f00965ab15..8a747cd1d735 100644 > --- a/include/uapi/asm-generic/unistd.h > +++ b/include/uapi/asm-generic/unistd.h > @@ -842,8 +842,11 @@ __SYSCALL(__NR_lsm_set_self_attr, sys_lsm_set_self_attr) > #define __NR_lsm_list_modules 461 > __SYSCALL(__NR_lsm_list_modules, sys_lsm_list_modules) > > +#define __NR_uretprobe 462 > +__SYSCALL(__NR_uretprobe, sys_uretprobe) > + > #undef __NR_syscalls > -#define __NR_syscalls 462 > +#define __NR_syscalls 463 > > /* > * 32 bit systems traditionally used different > diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c > index faad00cce269..be6195e0d078 100644 > --- a/kernel/sys_ni.c > +++ b/kernel/sys_ni.c > @@ -391,3 +391,5 @@ COND_SYSCALL(setuid16); > > /* restartable sequence */ > COND_SYSCALL(rseq); > + > +COND_SYSCALL(uretprobe); > -- > 2.44.0 >
diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl index 7e8d46f4147f..af0a33ab06ee 100644 --- a/arch/x86/entry/syscalls/syscall_64.tbl +++ b/arch/x86/entry/syscalls/syscall_64.tbl @@ -383,6 +383,7 @@ 459 common lsm_get_self_attr sys_lsm_get_self_attr 460 common lsm_set_self_attr sys_lsm_set_self_attr 461 common lsm_list_modules sys_lsm_list_modules +462 64 uretprobe sys_uretprobe # # Due to a historical design error, certain syscalls are numbered differently diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index e619ac10cd23..5318e0e76799 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -972,6 +972,8 @@ asmlinkage long sys_lsm_list_modules(u64 *ids, u32 *size, u32 flags); /* x86 */ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on); +asmlinkage long sys_uretprobe(void); + /* pciconfig: alpha, arm, arm64, ia64, sparc */ asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn, unsigned long off, unsigned long len, diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h index 75f00965ab15..8a747cd1d735 100644 --- a/include/uapi/asm-generic/unistd.h +++ b/include/uapi/asm-generic/unistd.h @@ -842,8 +842,11 @@ __SYSCALL(__NR_lsm_set_self_attr, sys_lsm_set_self_attr) #define __NR_lsm_list_modules 461 __SYSCALL(__NR_lsm_list_modules, sys_lsm_list_modules) +#define __NR_uretprobe 462 +__SYSCALL(__NR_uretprobe, sys_uretprobe) + #undef __NR_syscalls -#define __NR_syscalls 462 +#define __NR_syscalls 463 /* * 32 bit systems traditionally used different diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c index faad00cce269..be6195e0d078 100644 --- a/kernel/sys_ni.c +++ b/kernel/sys_ni.c @@ -391,3 +391,5 @@ COND_SYSCALL(setuid16); /* restartable sequence */ COND_SYSCALL(rseq); + +COND_SYSCALL(uretprobe);
Wiring up uretprobe system call, which comes in following changes. We need to do the wiring before, because the uretprobe implementation needs the syscall number. Note at the moment uretprobe syscall is supported only for native 64-bit process. Signed-off-by: Jiri Olsa <jolsa@kernel.org> --- arch/x86/entry/syscalls/syscall_64.tbl | 1 + include/linux/syscalls.h | 2 ++ include/uapi/asm-generic/unistd.h | 5 ++++- kernel/sys_ni.c | 2 ++ 4 files changed, 9 insertions(+), 1 deletion(-)