Re: [PATCH v5 17/24] powerpc/vdso: Enable the vdsocheck tool

---
  arch/powerpc/Kconfig              |  1 +
  arch/powerpc/kernel/vdso/Makefile |  4 ++--
  lib/vdso/check/vdsocheck.rs       | 27 +++++++++++++++++++++++++++
  3 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 2580e27e4328..f19e225cfc5c 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig

@@ -330,6 +330,7 @@ config PPC
  	select SYSCTL_EXCEPTION_TRACE
  	select THREAD_INFO_IN_TASK
  	select TRACE_IRQFLAGS_SUPPORT
+	select VDSO_CHECK
  	select VDSO_DATASTORE
  	select VDSO_GETRANDOM
  	#

diff --git a/arch/powerpc/kernel/vdso/Makefile b/arch/powerpc/kernel/vdso/Makefile
index 368759f81708..ca20b91b4373 100644
--- a/arch/powerpc/kernel/vdso/Makefile
+++ b/arch/powerpc/kernel/vdso/Makefile

@@ -81,9 +81,9 @@ targets += vdso64.lds
  CPPFLAGS_vdso64.lds += -P -C
  
  # link rule for the .so file, .lds has to be first
-$(obj)/vdso32.so.dbg: $(obj)/vdso32.lds $(obj-vdso32) $(obj)/vgettimeofday-32.o $(obj)/vgetrandom-32.o $(obj)/crtsavres-32.o FORCE
+$(obj)/vdso32.so.dbg: $(obj)/vdso32.lds $(obj-vdso32) $(obj)/vgettimeofday-32.o $(obj)/vgetrandom-32.o $(obj)/crtsavres-32.o $(vdsocheck) FORCE
  	$(call if_changed,vdso32ld_and_check)
-$(obj)/vdso64.so.dbg: $(obj)/vdso64.lds $(obj-vdso64) $(obj)/vgettimeofday-64.o $(obj)/vgetrandom-64.o FORCE
+$(obj)/vdso64.so.dbg: $(obj)/vdso64.lds $(obj-vdso64) $(obj)/vgettimeofday-64.o $(obj)/vgetrandom-64.o $(vdsocheck) FORCE
  	$(call if_changed,vdso64ld_and_check)
  
  # assembly rules for the .S files

diff --git a/lib/vdso/check/vdsocheck.rs b/lib/vdso/check/vdsocheck.rs
index e45a1fbc6829..429bdcd65818 100644
--- a/lib/vdso/check/vdsocheck.rs
+++ b/lib/vdso/check/vdsocheck.rs

@@ -69,6 +69,33 @@ fn allowed_relocations_for_machine(machine: u16) -> Option<AllowedRelocations<'s
              ..Default::default()
          }
          .into(),
+        bindings::EM_PPC => AllowedRelocations {
+            in_object_file: &[
+                bindings::R_PPC_REL24,
+                bindings::R_PPC_REL14,
+                bindings::R_PPC_REL32,
+                bindings::R_PPC_REL16,
+                bindings::R_PPC_REL16_LO,
+                bindings::R_PPC_REL16_HI,
+                bindings::R_PPC_REL16_HA,
+            ],
+            ..Default::default()
+        }
+        .into(),
+        bindings::EM_PPC64 => AllowedRelocations {
+            in_object_file: &[
+                bindings::R_PPC64_REL24,
+                bindings::R_PPC64_REL14,
+                bindings::R_PPC64_REL32,
+                bindings::R_PPC64_REL64,
+                bindings::R_PPC64_REL16,
+                bindings::R_PPC64_REL16_LO,
+                bindings::R_PPC64_REL16_HI,
+                bindings::R_PPC64_REL16_HA,
+            ],
+            ..Default::default()
+        }
+        .into(),
          _ => None,
      }
  }