[LTP] [PATCH 0/3] Port rt_tgsigqueueinfo01 to musl

[LTP] [PATCH 0/3] Port rt_tgsigqueueinfo01 to musl

[Petr Vorel]

Petr Vorel (3):
  rt_tgsigqueueinfo01: Use siginfo_t portable members
  rt_tgsigqueueinfo01: Convert doc to docparse
  ci/alpine.sh: Update list of incompatible tests

 ci/alpine.sh                                  |  3 +--
 .../rt_tgsigqueueinfo/rt_tgsigqueueinfo01.c   | 22 +++++++------------
 2 files changed, 9 insertions(+), 16 deletions(-)

-- 
2.45.2


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[LTP] [PATCH 1/3] rt_tgsigqueueinfo01: Use siginfo_t portable members

[Petr Vorel]

POSIX API for siginfo_t expect simple struct members (see man
sigaction(2)). Most of the implementations (including glibc, uclibc,
musl, bionic) combine many fields into union due optimisation. To
achieve POSIX API compatibility implementations provide definitions
to access members.

Depending on glibc/uclibc specific internal implementation was wrong.
eea3ba496b attempt to add bionic support. To get musl (or whatever libc)
support do what should have been done from the beginning: use portable
members.

Signed-off-by: Petr Vorel <petr.vorel@gmail.com>
---
 .../rt_tgsigqueueinfo/rt_tgsigqueueinfo01.c        | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/testcases/kernel/syscalls/rt_tgsigqueueinfo/rt_tgsigqueueinfo01.c b/testcases/kernel/syscalls/rt_tgsigqueueinfo/rt_tgsigqueueinfo01.c
index bee6a62713..2f603be945 100644
--- a/testcases/kernel/syscalls/rt_tgsigqueueinfo/rt_tgsigqueueinfo01.c
+++ b/testcases/kernel/syscalls/rt_tgsigqueueinfo/rt_tgsigqueueinfo01.c
@@ -25,12 +25,6 @@
 #include "tst_test.h"
 #include "lapi/syscalls.h"
 
-#ifndef __ANDROID__
-#define SI_SIGVAL si_sigval
-#else
-#define SI_SIGVAL _sigval
-#endif
-
 static char sigval_send[] = "rt_tgsigqueueinfo data";
 static volatile int signum_rcv;
 static char *sigval_rcv;
@@ -39,7 +33,7 @@ static void sigusr1_handler(int signum, siginfo_t *uinfo,
 			    void *p LTP_ATTRIBUTE_UNUSED)
 {
 	signum_rcv = signum;
-	sigval_rcv = uinfo->_sifields._rt.SI_SIGVAL.sival_ptr;
+	sigval_rcv = uinfo->si_ptr;
 }
 
 void *send_rcv_func(void *arg)
@@ -51,7 +45,7 @@ void *send_rcv_func(void *arg)
 
 	uinfo.si_errno = 0;
 	uinfo.si_code = SI_QUEUE;
-	uinfo._sifields._rt.SI_SIGVAL.sival_ptr = sigval_send;
+	uinfo.si_ptr = sigval_send;
 
 	TEST(tst_syscall(__NR_rt_tgsigqueueinfo, getpid(),
 			 syscall(__NR_gettid), SIGUSR1, &uinfo));
@@ -113,7 +107,7 @@ static void verify_signal_parent_thread(void)
 
 	uinfo.si_errno = 0;
 	uinfo.si_code = SI_QUEUE;
-	uinfo._sifields._rt.SI_SIGVAL.sival_ptr = sigval_send;
+	uinfo.si_ptr = sigval_send;
 
 	TEST(tst_syscall(__NR_rt_tgsigqueueinfo, getpid(),
 			 tid, SIGUSR1, &uinfo));
@@ -130,7 +124,7 @@ void *sender_func(void *arg)
 
 	uinfo.si_errno = 0;
 	uinfo.si_code = SI_QUEUE;
-	uinfo._sifields._rt.SI_SIGVAL.sival_ptr = sigval_send;
+	uinfo.si_ptr = sigval_send;
 
 	TEST(tst_syscall(__NR_rt_tgsigqueueinfo, getpid(),
 			 *tid, SIGUSR1, &uinfo));
-- 
2.45.2


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[LTP] [PATCH 2/3] rt_tgsigqueueinfo01: Convert doc to docparse

[Petr Vorel]

Signed-off-by: Petr Vorel <petr.vorel@gmail.com>
---
 .../syscalls/rt_tgsigqueueinfo/rt_tgsigqueueinfo01.c      | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/testcases/kernel/syscalls/rt_tgsigqueueinfo/rt_tgsigqueueinfo01.c b/testcases/kernel/syscalls/rt_tgsigqueueinfo/rt_tgsigqueueinfo01.c
index 2f603be945..9e45f35f78 100644
--- a/testcases/kernel/syscalls/rt_tgsigqueueinfo/rt_tgsigqueueinfo01.c
+++ b/testcases/kernel/syscalls/rt_tgsigqueueinfo/rt_tgsigqueueinfo01.c
@@ -1,17 +1,17 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * Copyright (c) 2019 Linaro Limited. All rights reserved.
+ * Copyright (c) Linux Test Project, 2019-2024
  * Author: Sumit Garg <sumit.garg@linaro.org>
  */
 
-/*
- * Test rt_tgsigqueueinfo
- *
- * This tests the rt_tgsigqueueinfo() syscall. It sends the signal and data
+/*\
+ * Basic test for rt_tgsigqueueinfo(2) syscall. It sends the signal and data
  * to the single thread specified by the combination of tgid, a thread group
  * ID, and tid, a thread in that thread group.
  *
  * Also this implement 3 tests differing on the basis of signal sender:
+ *
  * - Sender and receiver is the same thread.
  * - Sender is parent of the thread.
  * - Sender is different thread.
-- 
2.45.2


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[LTP] [PATCH 3/3] ci/alpine.sh: Update list of incompatible tests

[Petr Vorel]

rt_tgsigqueueinfo01.c has been ported in previous commit.

Signed-off-by: Petr Vorel <petr.vorel@gmail.com>
---
 ci/alpine.sh | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/ci/alpine.sh b/ci/alpine.sh
index d2495c3895..2803cf9ffc 100755
--- a/ci/alpine.sh
+++ b/ci/alpine.sh
@@ -1,6 +1,6 @@
 #!/bin/sh -eux
 # SPDX-License-Identifier: GPL-2.0-or-later
-# Copyright (c) 2019-2022 Petr Vorel <petr.vorel@gmail.com>
+# Copyright (c) 2019-2024 Petr Vorel <petr.vorel@gmail.com>
 
 apk update
 
@@ -34,7 +34,6 @@ echo "WARNING: remove unsupported tests (until they're fixed)"
 cd $(dirname $0)/..
 rm -rfv \
 	testcases/kernel/syscalls/fmtmsg/fmtmsg01.c \
-	testcases/kernel/syscalls/rt_tgsigqueueinfo/rt_tgsigqueueinfo01.c \
 	testcases/kernel/syscalls/timer_create/timer_create01.c \
 	testcases/kernel/syscalls/timer_create/timer_create03.c
 
-- 
2.45.2


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Re: [LTP] [PATCH 1/3] rt_tgsigqueueinfo01: Use siginfo_t portable members

[Cyril Hrubis]

Hi!
Looks good to me, for the whole patchset:

Reviewed-by: Cyril Hrubis <chrubis@suse.cz>

-- 
Cyril Hrubis
chrubis@suse.cz

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Re: [LTP] [PATCH 1/3] rt_tgsigqueueinfo01: Use siginfo_t portable members

[Jan Stancek]

On Fri, Nov 15, 2024 at 12:48 AM Petr Vorel <petr.vorel@gmail.com> wrote:
>
> POSIX API for siginfo_t expect simple struct members (see man
> sigaction(2)). Most of the implementations (including glibc, uclibc,
> musl, bionic) combine many fields into union due optimisation. To
> achieve POSIX API compatibility implementations provide definitions
> to access members.
>
> Depending on glibc/uclibc specific internal implementation was wrong.
> eea3ba496b attempt to add bionic support. To get musl (or whatever libc)
> support do what should have been done from the beginning: use portable
> members.
>
> Signed-off-by: Petr Vorel <petr.vorel@gmail.com>

Acked-by: Jan Stancek <jstancek@redhat.com>


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Re: [LTP] [PATCH 1/3] rt_tgsigqueueinfo01: Use siginfo_t portable members

[Petr Vorel]

Hi Cyril, Jan,

> Hi!
> Looks good to me, for the whole patchset:
merged. Thanks for your review!

Kind regards,
Petr

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