[RFC PATCH 10/15] selftests/rseq: Fix ppc32 offsets by using long rather than off_t
From: Mathieu Desnoyers
Date: Mon Jan 24 2022 - 12:13:57 EST
The semantic of off_t is for file offsets. We mean to use it as an
offset from a pointer. We really expect it to fit in a single register,
and not use a 64-bit type on 32-bit architectures.
Fix runtime issues on ppc32 where the offset is always 0 due to
inconsistency between the argument type (off_t -> 64-bit) and type
expected by the inline assembler (32-bit).
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx>
---
tools/testing/selftests/rseq/basic_percpu_ops_test.c | 2 +-
tools/testing/selftests/rseq/param_test.c | 2 +-
tools/testing/selftests/rseq/rseq-arm.h | 2 +-
tools/testing/selftests/rseq/rseq-arm64.h | 2 +-
tools/testing/selftests/rseq/rseq-mips.h | 2 +-
tools/testing/selftests/rseq/rseq-ppc.h | 2 +-
tools/testing/selftests/rseq/rseq-s390.h | 2 +-
tools/testing/selftests/rseq/rseq-skip.h | 2 +-
tools/testing/selftests/rseq/rseq-x86.h | 6 +++---
9 files changed, 11 insertions(+), 11 deletions(-)
diff --git a/tools/testing/selftests/rseq/basic_percpu_ops_test.c b/tools/testing/selftests/rseq/basic_percpu_ops_test.c
index b953a52ff706..517756afc2a4 100644
--- a/tools/testing/selftests/rseq/basic_percpu_ops_test.c
+++ b/tools/testing/selftests/rseq/basic_percpu_ops_test.c
@@ -167,7 +167,7 @@ struct percpu_list_node *this_cpu_list_pop(struct percpu_list *list,
for (;;) {
struct percpu_list_node *head;
intptr_t *targetptr, expectnot, *load;
- off_t offset;
+ long offset;
int ret, cpu;
cpu = rseq_cpu_start();
diff --git a/tools/testing/selftests/rseq/param_test.c b/tools/testing/selftests/rseq/param_test.c
index cc2cfc1da938..335c290b39e7 100644
--- a/tools/testing/selftests/rseq/param_test.c
+++ b/tools/testing/selftests/rseq/param_test.c
@@ -549,7 +549,7 @@ struct percpu_list_node *this_cpu_list_pop(struct percpu_list *list,
for (;;) {
struct percpu_list_node *head;
intptr_t *targetptr, expectnot, *load;
- off_t offset;
+ long offset;
int ret;
cpu = rseq_cpu_start();
diff --git a/tools/testing/selftests/rseq/rseq-arm.h b/tools/testing/selftests/rseq/rseq-arm.h
index 5f567b3b40f2..ae476af70152 100644
--- a/tools/testing/selftests/rseq/rseq-arm.h
+++ b/tools/testing/selftests/rseq/rseq-arm.h
@@ -217,7 +217,7 @@ int rseq_cmpeqv_storev(intptr_t *v, intptr_t expect, intptr_t newv, int cpu)
static inline __attribute__((always_inline))
int rseq_cmpnev_storeoffp_load(intptr_t *v, intptr_t expectnot,
- off_t voffp, intptr_t *load, int cpu)
+ long voffp, intptr_t *load, int cpu)
{
RSEQ_INJECT_C(9)
diff --git a/tools/testing/selftests/rseq/rseq-arm64.h b/tools/testing/selftests/rseq/rseq-arm64.h
index d0f2b7feee94..7806817062c2 100644
--- a/tools/testing/selftests/rseq/rseq-arm64.h
+++ b/tools/testing/selftests/rseq/rseq-arm64.h
@@ -259,7 +259,7 @@ int rseq_cmpeqv_storev(intptr_t *v, intptr_t expect, intptr_t newv, int cpu)
static inline __attribute__((always_inline))
int rseq_cmpnev_storeoffp_load(intptr_t *v, intptr_t expectnot,
- off_t voffp, intptr_t *load, int cpu)
+ long voffp, intptr_t *load, int cpu)
{
RSEQ_INJECT_C(9)
diff --git a/tools/testing/selftests/rseq/rseq-mips.h b/tools/testing/selftests/rseq/rseq-mips.h
index 6df54273825d..0d1d9255da70 100644
--- a/tools/testing/selftests/rseq/rseq-mips.h
+++ b/tools/testing/selftests/rseq/rseq-mips.h
@@ -222,7 +222,7 @@ int rseq_cmpeqv_storev(intptr_t *v, intptr_t expect, intptr_t newv, int cpu)
static inline __attribute__((always_inline))
int rseq_cmpnev_storeoffp_load(intptr_t *v, intptr_t expectnot,
- off_t voffp, intptr_t *load, int cpu)
+ long voffp, intptr_t *load, int cpu)
{
RSEQ_INJECT_C(9)
diff --git a/tools/testing/selftests/rseq/rseq-ppc.h b/tools/testing/selftests/rseq/rseq-ppc.h
index 87befda47ba4..aa18c0eabf40 100644
--- a/tools/testing/selftests/rseq/rseq-ppc.h
+++ b/tools/testing/selftests/rseq/rseq-ppc.h
@@ -270,7 +270,7 @@ int rseq_cmpeqv_storev(intptr_t *v, intptr_t expect, intptr_t newv, int cpu)
static inline __attribute__((always_inline))
int rseq_cmpnev_storeoffp_load(intptr_t *v, intptr_t expectnot,
- off_t voffp, intptr_t *load, int cpu)
+ long voffp, intptr_t *load, int cpu)
{
RSEQ_INJECT_C(9)
diff --git a/tools/testing/selftests/rseq/rseq-s390.h b/tools/testing/selftests/rseq/rseq-s390.h
index 9927021f8bd0..0f523b3ecdef 100644
--- a/tools/testing/selftests/rseq/rseq-s390.h
+++ b/tools/testing/selftests/rseq/rseq-s390.h
@@ -198,7 +198,7 @@ int rseq_cmpeqv_storev(intptr_t *v, intptr_t expect, intptr_t newv, int cpu)
*/
static inline __attribute__((always_inline))
int rseq_cmpnev_storeoffp_load(intptr_t *v, intptr_t expectnot,
- off_t voffp, intptr_t *load, int cpu)
+ long voffp, intptr_t *load, int cpu)
{
RSEQ_INJECT_C(9)
diff --git a/tools/testing/selftests/rseq/rseq-skip.h b/tools/testing/selftests/rseq/rseq-skip.h
index 72750b5905a9..7b53dac1fcdd 100644
--- a/tools/testing/selftests/rseq/rseq-skip.h
+++ b/tools/testing/selftests/rseq/rseq-skip.h
@@ -13,7 +13,7 @@ int rseq_cmpeqv_storev(intptr_t *v, intptr_t expect, intptr_t newv, int cpu)
static inline __attribute__((always_inline))
int rseq_cmpnev_storeoffp_load(intptr_t *v, intptr_t expectnot,
- off_t voffp, intptr_t *load, int cpu)
+ long voffp, intptr_t *load, int cpu)
{
return -1;
}
diff --git a/tools/testing/selftests/rseq/rseq-x86.h b/tools/testing/selftests/rseq/rseq-x86.h
index 1d9fa0516e53..0ee6c041d4be 100644
--- a/tools/testing/selftests/rseq/rseq-x86.h
+++ b/tools/testing/selftests/rseq/rseq-x86.h
@@ -172,7 +172,7 @@ int rseq_cmpeqv_storev(intptr_t *v, intptr_t expect, intptr_t newv, int cpu)
*/
static inline __attribute__((always_inline))
int rseq_cmpnev_storeoffp_load(intptr_t *v, intptr_t expectnot,
- off_t voffp, intptr_t *load, int cpu)
+ long voffp, intptr_t *load, int cpu)
{
RSEQ_INJECT_C(9)
@@ -286,7 +286,7 @@ int rseq_addv(intptr_t *v, intptr_t count, int cpu)
* *pval += inc;
*/
static inline __attribute__((always_inline))
-int rseq_offset_deref_addv(intptr_t *ptr, off_t off, intptr_t inc, int cpu)
+int rseq_offset_deref_addv(intptr_t *ptr, long off, intptr_t inc, int cpu)
{
RSEQ_INJECT_C(9)
@@ -750,7 +750,7 @@ int rseq_cmpeqv_storev(intptr_t *v, intptr_t expect, intptr_t newv, int cpu)
*/
static inline __attribute__((always_inline))
int rseq_cmpnev_storeoffp_load(intptr_t *v, intptr_t expectnot,
- off_t voffp, intptr_t *load, int cpu)
+ long voffp, intptr_t *load, int cpu)
{
RSEQ_INJECT_C(9)
--
2.17.1