libc-test: Fix strptime and api/main tests

(From OE-Core rev: 124921683e9a0a1d981eaeea717c5dd7d35abf90)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 97 insertions, 0 deletions

diff --git a/meta/recipes-core/musl/libc-test/0001-Fix-strptime-on-musl.patch b/meta/recipes-core/musl/libc-test/0001-Fix-strptime-on-musl.patch
new file mode 100644
index 0000000000..4c3a2cb21f
--- /dev/null
+++ b/meta/recipes-core/musl/libc-test/0001-Fix-strptime-on-musl.patch
@@ -0,0 +1,53 @@
+From df26c5206c3234fd2df924cff7ef540af1f2077c Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Tue, 19 Aug 2025 23:11:40 -0700
+Subject: [PATCH libc-test] Fix strptime on musl
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+musl parses the digits for %s but does not populate struct tm
+(it's "parse-only" and intentionally has no effect on tm).
+That's why you get a zeroed-out date like 1900-01-00T00:00:00.
+This is current upstream behavior:
+
+case 's': /* Parse only. Effect on tm is unspecified and presently no effect is implemented.. */
+
+musl's strptime only accepts ±hhmm for %z (e.g., -0600).
+It does not accept ±hh or ±hh:mm. So '-06' fails by design.
+It can be seen that upstream only checks 4 digits after the sign.
+
+Upstream-Status: Submitted [https://www.openwall.com/lists/musl/2025/08/20/2]
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ AUTHORS                   | 1 +
+ src/functional/strptime.c | 4 +++-
+ 2 files changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/AUTHORS b/AUTHORS
+index cf2a394..5e78ef7 100644
+--- a/AUTHORS
++++ b/AUTHORS
+@@ -6,3 +6,4 @@ Jens Gustedt
+ Alexander Monakov
+ Julien Ramseier
+ Alyssa Ross
++Khem Raj
+diff --git a/src/functional/strptime.c b/src/functional/strptime.c
+index b5f8977..f76fa68 100644
+--- a/src/functional/strptime.c
++++ b/src/functional/strptime.c
+@@ -109,10 +109,12 @@ int main() {
+ 
+        /* Glibc */
+        checkStrptime("1856-07-10", "%F", &tm4);
++#ifdef __GLIBC__
+        checkStrptime("683078400", "%s", &tm2);
++#endif
+        checkStrptimeTz("+0200", 2, 0);
+        checkStrptimeTz("-0530", -5, -30);
+-       checkStrptimeTz("-06", -6, 0);
++       checkStrptimeTz("-0600", -6, 0);
+ 
+        return t_status;
+ }
diff --git a/meta/recipes-core/musl/libc-test/0001-api-unistd-guard-optional-obsolete-_PC-_SC-constants.patch b/meta/recipes-core/musl/libc-test/0001-api-unistd-guard-optional-obsolete-_PC-_SC-constants.patch
new file mode 100644
index 0000000000..f568595319
--- /dev/null
+++ b/meta/recipes-core/musl/libc-test/0001-api-unistd-guard-optional-obsolete-_PC-_SC-constants.patch
@@ -0,0 +1,44 @@
+From 90515d553d03d1f0bec8a4bdf03d02626d3968bb Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Tue, 19 Aug 2025 23:32:52 -0700
+Subject: [PATCH] api/unistd: guard optional/obsolete *_PC/*_SC constants for
+ musl
+
+musl does not define some POSIX option macros:
+- _SC_XOPEN_UUCP is obsolete and absent on musl
+- _PC_TIMESTAMP_RESOLUTION is optional and may be undefined
+
+Build currently fails when these are referenced unconditionally.
+Wrap the checks in #ifdef so the test compiles on musl without
+claiming support for unavailable names.
+
+Upstream-Status: Submitted [https://www.openwall.com/lists/musl/2025/08/20/3]
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ src/api/unistd.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/src/api/unistd.c b/src/api/unistd.c
+index 522ccdc..0de547b 100644
+--- a/src/api/unistd.c
++++ b/src/api/unistd.c
+@@ -114,7 +114,9 @@ C(_PC_REC_MIN_XFER_SIZE)
+ C(_PC_REC_XFER_ALIGN)
+ C(_PC_SYMLINK_MAX)
+ C(_PC_SYNC_IO)
++#ifdef _PC_TIMESTAMP_RESOLUTION
+ C(_PC_TIMESTAMP_RESOLUTION)
++#endif
+ C(_PC_VDISABLE)
+ C(_SC_2_C_BIND)
+ C(_SC_2_C_DEV)
+@@ -235,7 +237,9 @@ C(_SC_XOPEN_REALTIME_THREADS)
+ C(_SC_XOPEN_SHM)
+ C(_SC_XOPEN_STREAMS)
+ C(_SC_XOPEN_UNIX)
++#ifdef _SC_XOPEN_UUCP
+ C(_SC_XOPEN_UUCP)
++#endif
+ C(_SC_XOPEN_VERSION)
+ C(STDERR_FILENO)
+ C(STDIN_FILENO)