From: Randy MacLeod <Randy.MacLeod@windriver.com>
To: <openembedded-core@lists.openembedded.org>
Subject: [PATCH 2/5] valgrind: backport rseq work-around
Date: Wed, 29 Dec 2021 17:37:27 -0800 [thread overview]
Message-ID: <20211230013730.129852-3-Randy.MacLeod@windriver.com> (raw)
In-Reply-To: <20211230013730.129852-1-Randy.MacLeod@windriver.com>
Using glibc-2.35-alpha, valgrind ptests mostly all fail with the error:
WARNING: unhandled amd64-linux syscall: 334
You may be able to write your own handler.
With this patch applied qemux86-64 ptest results were:
TOTAL: 728
PASSED: 709
FAILED: 0
SKIPPED: 19
This patch implements the Linux rseq syscall as ENOSYS while
a proper fix is being worked on as desribed in the patch
commit log.
Signed-off-by: Randy MacLeod <Randy.MacLeod@windriver.com>
---
...plement-linux-rseq-syscall-as-ENOSYS.patch | 198 ++++++++++++++++++
.../valgrind/valgrind_3.18.1.bb | 1 +
2 files changed, 199 insertions(+)
create mode 100644 meta/recipes-devtools/valgrind/valgrind/0001-Implement-linux-rseq-syscall-as-ENOSYS.patch
diff --git a/meta/recipes-devtools/valgrind/valgrind/0001-Implement-linux-rseq-syscall-as-ENOSYS.patch b/meta/recipes-devtools/valgrind/valgrind/0001-Implement-linux-rseq-syscall-as-ENOSYS.patch
new file mode 100644
index 0000000000..be1536980c
--- /dev/null
+++ b/meta/recipes-devtools/valgrind/valgrind/0001-Implement-linux-rseq-syscall-as-ENOSYS.patch
@@ -0,0 +1,198 @@
+From 1024237358f01009fe233cb1294f3b8211304eaa Mon Sep 17 00:00:00 2001
+From: Mark Wielaard <mark@klomp.org>
+Date: Fri, 10 Dec 2021 17:41:59 +0100
+Subject: [PATCH] Implement linux rseq syscall as ENOSYS
+
+This implements rseq for amd64, arm, arm64, ppc32, ppc64,
+s390x and x86 linux as ENOSYS (without warning).
+
+glibc will start using rseq to accelerate sched_getcpu, if
+available. This would cause a warning from valgrind every
+time a new thread is started.
+
+Real rseq (restartable sequences) support is pretty hard, so
+for now just explicitly return ENOSYS (just like we do for clone3).
+
+Upstream-Status: Backport [ 1024237358f01009fe233cb1294f3b8211304eaa ]
+
+https://sourceware.org/pipermail/libc-alpha/2021-December/133656.html
+---
+ coregrind/m_syswrap/syswrap-amd64-linux.c | 2 ++
+ coregrind/m_syswrap/syswrap-arm-linux.c | 1 +
+ coregrind/m_syswrap/syswrap-arm64-linux.c | 3 ++-
+ coregrind/m_syswrap/syswrap-ppc32-linux.c | 2 ++
+ coregrind/m_syswrap/syswrap-ppc64-linux.c | 2 ++
+ coregrind/m_syswrap/syswrap-s390x-linux.c | 2 ++
+ coregrind/m_syswrap/syswrap-x86-linux.c | 2 ++
+ include/vki/vki-scnums-arm-linux.h | 1 +
+ include/vki/vki-scnums-arm64-linux.h | 4 +++-
+ include/vki/vki-scnums-ppc32-linux.h | 1 +
+ include/vki/vki-scnums-ppc64-linux.h | 1 +
+ include/vki/vki-scnums-s390x-linux.h | 5 ++++-
+ 12 files changed, 23 insertions(+), 3 deletions(-)
+
+diff --git a/coregrind/m_syswrap/syswrap-amd64-linux.c b/coregrind/m_syswrap/syswrap-amd64-linux.c
+index 5062324a1..18b25f80a 100644
+--- a/coregrind/m_syswrap/syswrap-amd64-linux.c
++++ b/coregrind/m_syswrap/syswrap-amd64-linux.c
+@@ -862,6 +862,8 @@ static SyscallTableEntry syscall_table[] = {
+
+ LINXY(__NR_statx, sys_statx), // 332
+
++ GENX_(__NR_rseq, sys_ni_syscall), // 334
++
+ LINX_(__NR_membarrier, sys_membarrier), // 324
+
+ LINX_(__NR_copy_file_range, sys_copy_file_range), // 326
+diff --git a/coregrind/m_syswrap/syswrap-arm-linux.c b/coregrind/m_syswrap/syswrap-arm-linux.c
+index 556dd844b..d583cef0c 100644
+--- a/coregrind/m_syswrap/syswrap-arm-linux.c
++++ b/coregrind/m_syswrap/syswrap-arm-linux.c
+@@ -1024,6 +1024,7 @@ static SyscallTableEntry syscall_main_table[] = {
+ LINX_(__NR_pwritev2, sys_pwritev2), // 393
+
+ LINXY(__NR_statx, sys_statx), // 397
++ GENX_(__NR_rseq, sys_ni_syscall), // 398
+
+ LINXY(__NR_clock_gettime64, sys_clock_gettime64), // 403
+ LINX_(__NR_clock_settime64, sys_clock_settime64), // 404
+diff --git a/coregrind/m_syswrap/syswrap-arm64-linux.c b/coregrind/m_syswrap/syswrap-arm64-linux.c
+index b87107727..2066a38ea 100644
+--- a/coregrind/m_syswrap/syswrap-arm64-linux.c
++++ b/coregrind/m_syswrap/syswrap-arm64-linux.c
+@@ -823,8 +823,9 @@ static SyscallTableEntry syscall_main_table[] = {
+ // (__NR_pkey_mprotect, sys_ni_syscall), // 288
+ // (__NR_pkey_alloc, sys_ni_syscall), // 289
+ // (__NR_pkey_free, sys_ni_syscall), // 290
++ LINXY(__NR_statx, sys_statx), // 291
+
+- LINXY(__NR_statx, sys_statx), // 397
++ GENX_(__NR_rseq, sys_ni_syscall), // 293
+
+ LINXY(__NR_io_uring_setup, sys_io_uring_setup), // 425
+ LINXY(__NR_io_uring_enter, sys_io_uring_enter), // 426
+diff --git a/coregrind/m_syswrap/syswrap-ppc32-linux.c b/coregrind/m_syswrap/syswrap-ppc32-linux.c
+index 6263ab845..637b2504e 100644
+--- a/coregrind/m_syswrap/syswrap-ppc32-linux.c
++++ b/coregrind/m_syswrap/syswrap-ppc32-linux.c
+@@ -1028,6 +1028,8 @@ static SyscallTableEntry syscall_table[] = {
+
+ LINXY(__NR_statx, sys_statx), // 383
+
++ GENX_(__NR_rseq, sys_ni_syscall), // 387
++
+ LINXY(__NR_clock_gettime64, sys_clock_gettime64), // 403
+ LINX_(__NR_clock_settime64, sys_clock_settime64), // 404
+
+diff --git a/coregrind/m_syswrap/syswrap-ppc64-linux.c b/coregrind/m_syswrap/syswrap-ppc64-linux.c
+index a26b41c32..93956d3cc 100644
+--- a/coregrind/m_syswrap/syswrap-ppc64-linux.c
++++ b/coregrind/m_syswrap/syswrap-ppc64-linux.c
+@@ -1019,6 +1019,8 @@ static SyscallTableEntry syscall_table[] = {
+
+ LINXY(__NR_statx, sys_statx), // 383
+
++ GENX_(__NR_rseq, sys_ni_syscall), // 387
++
+ LINXY(__NR_io_uring_setup, sys_io_uring_setup), // 425
+ LINXY(__NR_io_uring_enter, sys_io_uring_enter), // 426
+ LINXY(__NR_io_uring_register, sys_io_uring_register), // 427
+diff --git a/coregrind/m_syswrap/syswrap-s390x-linux.c b/coregrind/m_syswrap/syswrap-s390x-linux.c
+index 5c9209859..73f9684c4 100644
+--- a/coregrind/m_syswrap/syswrap-s390x-linux.c
++++ b/coregrind/m_syswrap/syswrap-s390x-linux.c
+@@ -860,6 +860,8 @@ static SyscallTableEntry syscall_table[] = {
+
+ LINXY(__NR_statx, sys_statx), // 379
+
++ GENX_(__NR_rseq, sys_ni_syscall), // 381
++
+ LINXY(__NR_io_uring_setup, sys_io_uring_setup), // 425
+ LINXY(__NR_io_uring_enter, sys_io_uring_enter), // 426
+ LINXY(__NR_io_uring_register, sys_io_uring_register), // 427
+diff --git a/coregrind/m_syswrap/syswrap-x86-linux.c b/coregrind/m_syswrap/syswrap-x86-linux.c
+index 1d8f45d33..8662ff501 100644
+--- a/coregrind/m_syswrap/syswrap-x86-linux.c
++++ b/coregrind/m_syswrap/syswrap-x86-linux.c
+@@ -1619,6 +1619,8 @@ static SyscallTableEntry syscall_table[] = {
+ /* Explicitly not supported on i386 yet. */
+ GENX_(__NR_arch_prctl, sys_ni_syscall), // 384
+
++ GENX_(__NR_rseq, sys_ni_syscall), // 386
++
+ LINXY(__NR_clock_gettime64, sys_clock_gettime64), // 403
+ LINX_(__NR_clock_settime64, sys_clock_settime64), // 404
+
+diff --git a/include/vki/vki-scnums-arm-linux.h b/include/vki/vki-scnums-arm-linux.h
+index ff560e19d..485db8b26 100644
+--- a/include/vki/vki-scnums-arm-linux.h
++++ b/include/vki/vki-scnums-arm-linux.h
+@@ -432,6 +432,7 @@
+ #define __NR_pkey_alloc 395
+ #define __NR_pkey_free 396
+ #define __NR_statx 397
++#define __NR_rseq 398
+
+
+
+diff --git a/include/vki/vki-scnums-arm64-linux.h b/include/vki/vki-scnums-arm64-linux.h
+index 9aa3b2b5f..acdfb39c6 100644
+--- a/include/vki/vki-scnums-arm64-linux.h
++++ b/include/vki/vki-scnums-arm64-linux.h
+@@ -323,9 +323,11 @@
+ #define __NR_pkey_alloc 289
+ #define __NR_pkey_free 290
+ #define __NR_statx 291
++#define __NR_io_pgetevents 291
++#define __NR_rseq 293
+
+ #undef __NR_syscalls
+-#define __NR_syscalls 292
++#define __NR_syscalls 294
+
+ ///*
+ // * All syscalls below here should go away really,
+diff --git a/include/vki/vki-scnums-ppc32-linux.h b/include/vki/vki-scnums-ppc32-linux.h
+index 6987ad941..08fa77df0 100644
+--- a/include/vki/vki-scnums-ppc32-linux.h
++++ b/include/vki/vki-scnums-ppc32-linux.h
+@@ -415,6 +415,7 @@
+ #define __NR_pkey_alloc 384
+ #define __NR_pkey_free 385
+ #define __NR_pkey_mprotect 386
++#define __NR_rseq 387
+
+ #endif /* __VKI_SCNUMS_PPC32_LINUX_H */
+
+diff --git a/include/vki/vki-scnums-ppc64-linux.h b/include/vki/vki-scnums-ppc64-linux.h
+index 6827964fd..a76fa6d32 100644
+--- a/include/vki/vki-scnums-ppc64-linux.h
++++ b/include/vki/vki-scnums-ppc64-linux.h
+@@ -407,6 +407,7 @@
+ #define __NR_pkey_alloc 384
+ #define __NR_pkey_free 385
+ #define __NR_pkey_mprotect 386
++#define __NR_rseq 387
+
+ #endif /* __VKI_SCNUMS_PPC64_LINUX_H */
+
+diff --git a/include/vki/vki-scnums-s390x-linux.h b/include/vki/vki-scnums-s390x-linux.h
+index 6487e20c9..869c04584 100644
+--- a/include/vki/vki-scnums-s390x-linux.h
++++ b/include/vki/vki-scnums-s390x-linux.h
+@@ -342,8 +342,11 @@
+ #define __NR_s390_guarded_storage 378
+ #define __NR_statx 379
+ #define __NR_s390_sthyi 380
++#define __NR_kexec_file_load 381
++#define __NR_io_pgetevents 382
++#define __NR_rseq 383
+
+-#define NR_syscalls 381
++#define NR_syscalls 384
+
+ /*
+ * There are some system calls that are not present on 64 bit, some
+--
+2.30.2
+
diff --git a/meta/recipes-devtools/valgrind/valgrind_3.18.1.bb b/meta/recipes-devtools/valgrind/valgrind_3.18.1.bb
index d8f82a4100..7837034f92 100644
--- a/meta/recipes-devtools/valgrind/valgrind_3.18.1.bb
+++ b/meta/recipes-devtools/valgrind/valgrind_3.18.1.bb
@@ -42,6 +42,7 @@ SRC_URI = "https://sourceware.org/pub/valgrind/valgrind-${PV}.tar.bz2 \
file://s390x_vec_op_t.patch \
file://0001-none-tests-fdleak_cmsg.stderr.exp-adjust-tmp-paths.patch \
file://0001-memcheck-tests-Fix-timerfd-syscall-test.patch \
+ file://0001-Implement-linux-rseq-syscall-as-ENOSYS.patch \
"
SRC_URI[sha256sum] = "00859aa13a772eddf7822225f4b46ee0d39afbe071d32778da4d99984081f7f5"
UPSTREAM_CHECK_REGEX = "valgrind-(?P<pver>\d+(\.\d+)+)\.tar"
--
2.31.1
next prev parent reply other threads:[~2021-12-30 1:37 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-30 1:37 [PATCH 0/5] valgrind: ptests Randy MacLeod
2021-12-30 1:37 ` [PATCH 1/5] valgrind: Add util-linux-taskset ptest dependency Randy MacLeod
2021-12-30 1:37 ` Randy MacLeod [this message]
2021-12-30 1:37 ` [PATCH 3/5] valgrind: remove duplicate and skipped tests from remove-for-aarch64 Randy MacLeod
2021-12-30 1:37 ` [PATCH 4/5] valgrind: skip boost_thread for aarch64 ptests Randy MacLeod
2021-12-30 1:37 ` [PATCH 5/5] valgrind: make run-ptest better Randy MacLeod
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20211230013730.129852-3-Randy.MacLeod@windriver.com \
--to=randy.macleod@windriver.com \
--cc=openembedded-core@lists.openembedded.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.