This is a note to let you know that I've just added the patch titled
tools/nolibc: ensure fast64 integer types have 64 bits
to the 6.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
tools-nolibc-ensure-fast64-integer-types-have-64-bit.patch
and it can be found in the queue-6.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 2204f8a878e0a62374cf3ce592f3a5610ba383a0
Author: Thomas Weißschuh <linux@xxxxxxxxxxxxxx>
Date: Tue May 30 11:18:00 2023 +0200
tools/nolibc: ensure fast64 integer types have 64 bits
[ Upstream commit f9bf5944d37b75b8238349d4fb5b7a97bbecfc9d ]
On 32bit platforms size_t is not enough to represent [u]int_fast64_t.
Fixes: 3e9fd4e9a1d5 ("tools/nolibc: add integer types and integer limit macros")
Signed-off-by: Thomas Weißschuh <linux@xxxxxxxxxxxxxx>
Signed-off-by: Willy Tarreau <w@xxxxxx>
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/tools/include/nolibc/stdint.h b/tools/include/nolibc/stdint.h
index c1ce4f5e06034..661d942862c0b 100644
--- a/tools/include/nolibc/stdint.h
+++ b/tools/include/nolibc/stdint.h
@@ -36,8 +36,8 @@ typedef ssize_t int_fast16_t;
typedef size_t uint_fast16_t;
typedef ssize_t int_fast32_t;
typedef size_t uint_fast32_t;
-typedef ssize_t int_fast64_t;
-typedef size_t uint_fast64_t;
+typedef int64_t int_fast64_t;
+typedef uint64_t uint_fast64_t;
typedef int64_t intmax_t;
typedef uint64_t uintmax_t;
@@ -84,16 +84,16 @@ typedef uint64_t uintmax_t;
#define INT_FAST8_MIN INT8_MIN
#define INT_FAST16_MIN INTPTR_MIN
#define INT_FAST32_MIN INTPTR_MIN
-#define INT_FAST64_MIN INTPTR_MIN
+#define INT_FAST64_MIN INT64_MIN
#define INT_FAST8_MAX INT8_MAX
#define INT_FAST16_MAX INTPTR_MAX
#define INT_FAST32_MAX INTPTR_MAX
-#define INT_FAST64_MAX INTPTR_MAX
+#define INT_FAST64_MAX INT64_MAX
#define UINT_FAST8_MAX UINT8_MAX
#define UINT_FAST16_MAX SIZE_MAX
#define UINT_FAST32_MAX SIZE_MAX
-#define UINT_FAST64_MAX SIZE_MAX
+#define UINT_FAST64_MAX UINT64_MAX
#endif /* _NOLIBC_STDINT_H */
diff --git a/tools/testing/selftests/nolibc/nolibc-test.c b/tools/testing/selftests/nolibc/nolibc-test.c
index 21bacc928bf7b..d37d036876ea9 100644
--- a/tools/testing/selftests/nolibc/nolibc-test.c
+++ b/tools/testing/selftests/nolibc/nolibc-test.c
@@ -639,9 +639,9 @@ int run_stdlib(int min, int max)
CASE_TEST(limit_int_fast32_min); EXPECT_EQ(1, INT_FAST32_MIN, (int_fast32_t) INTPTR_MIN); break;
CASE_TEST(limit_int_fast32_max); EXPECT_EQ(1, INT_FAST32_MAX, (int_fast32_t) INTPTR_MAX); break;
CASE_TEST(limit_uint_fast32_max); EXPECT_EQ(1, UINT_FAST32_MAX, (uint_fast32_t) UINTPTR_MAX); break;
- CASE_TEST(limit_int_fast64_min); EXPECT_EQ(1, INT_FAST64_MIN, (int_fast64_t) INTPTR_MIN); break;
- CASE_TEST(limit_int_fast64_max); EXPECT_EQ(1, INT_FAST64_MAX, (int_fast64_t) INTPTR_MAX); break;
- CASE_TEST(limit_uint_fast64_max); EXPECT_EQ(1, UINT_FAST64_MAX, (uint_fast64_t) UINTPTR_MAX); break;
+ CASE_TEST(limit_int_fast64_min); EXPECT_EQ(1, INT_FAST64_MIN, (int_fast64_t) INT64_MIN); break;
+ CASE_TEST(limit_int_fast64_max); EXPECT_EQ(1, INT_FAST64_MAX, (int_fast64_t) INT64_MAX); break;
+ CASE_TEST(limit_uint_fast64_max); EXPECT_EQ(1, UINT_FAST64_MAX, (uint_fast64_t) UINT64_MAX); break;
#if __SIZEOF_LONG__ == 8
CASE_TEST(limit_intptr_min); EXPECT_EQ(1, INTPTR_MIN, (intptr_t) 0x8000000000000000LL); break;
CASE_TEST(limit_intptr_max); EXPECT_EQ(1, INTPTR_MAX, (intptr_t) 0x7fffffffffffffffLL); break;
