On Sun, Apr 21, 2024 at 12:42 PM Jiri Olsa <jolsa@xxxxxxxxxx> 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@xxxxxxxxxx> > --- > 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@xxxxxxxxxx> > 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 >
