[v6] strace-tst-thp.sh: Allow unsupported THP tests

Message ID CAMe9rOoDjgn8oD-GQTc--hi3-NdzWiHfmmcHN5DWtKi+eG2nLQ@mail.gmail.com (mailing list archive)
State Committed
Headers
Series [v6] strace-tst-thp.sh: Allow unsupported THP tests |

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Commit Message

H.J. Lu July 21, 2026, 8:34 a.m. UTC
  Change strace-tst-thp.sh to check the command exit status so that
unsupported THP tests exit with status 77.
  

Comments

H.J. Lu Aug. 3, 2026, 1:48 a.m. UTC | #1
On Tue, Jul 21, 2026 at 4:34 PM H.J. Lu <hjl.tools@gmail.com> wrote:
>
> Change strace-tst-thp.sh to check the command exit status so that
> unsupported THP tests exit with status 77.
>

PING:

https://patchwork.sourceware.org/project/glibc/patch/CAMe9rOoDjgn8oD-GQTc--hi3-NdzWiHfmmcHN5DWtKi+eG2nLQ@mail.gmail.com/
  
Adhemerval Zanella Aug. 10, 2026, 6:52 p.m. UTC | #2
On 21/07/26 05:34, H.J. Lu wrote:
> Change strace-tst-thp.sh to check the command exit status so that
> unsupported THP tests exit with status 77.
> 
> 
> From 664b271b81da6d57eefac7cd7d6b529dfbf5755c Mon Sep 17 00:00:00 2001
> From: "H.J. Lu" <hjl.tools@gmail.com>
> Date: Sat, 4 Jul 2026 11:06:21 +0800
> Subject: [PATCH v6] strace-tst-thp.sh: Allow unsupported THP tests
> 
> Change strace-tst-thp.sh to check the command exit status so that
> unsupported THP tests exit with status 77.
> 
> Signed-off-by: H.J. Lu <hjl.tools@gmail.com>

LGTM, thanks.  Some minor suggestions below, no need to send a new version.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>

> ---
>  sysdeps/unix/sysv/linux/strace-tst-thp.sh | 24 +++++++++++------------
>  1 file changed, 11 insertions(+), 13 deletions(-)
> 
> diff --git a/sysdeps/unix/sysv/linux/strace-tst-thp.sh b/sysdeps/unix/sysv/linux/strace-tst-thp.sh
> index bff7d3e7a0..1c2b7255ac 100644
> --- a/sysdeps/unix/sysv/linux/strace-tst-thp.sh
> +++ b/sysdeps/unix/sysv/linux/strace-tst-thp.sh
> @@ -1,4 +1,4 @@
> -#!/bin/bash
> +#!/bin/sh
>  # Run THP test under strace to verify control of the THP segment load.
>  # Copyright (C) 2026 Free Software Foundation, Inc.
>  # This file is part of the GNU C Library.
> @@ -17,8 +17,6 @@
>  # License along with the GNU C Library; if not, see
>  # <https://www.gnu.org/licenses/>.
>  
> -set -e
> -
>  rtld="$1"
>  test_wrapper_env="$2"
>  run_program_env="$3"
> @@ -39,24 +37,24 @@ esac
>  
>  # Verify strace is not just present, but works in this environment.  If
>  # not, skip the test.
> -/bin/sh -c \
> - "${test_wrapper_env} ${run_program_env} \
> -  strace -X raw -e trace=none -- /bin/true" > /dev/null 2>&1 || exit 77
> +${test_wrapper_env} ${run_program_env} \
> +  strace -X raw -e trace=none -- /bin/true > /dev/null 2>&1 || exit 77
>  
>  # Finally the actual test inside the test environment, using the just
>  # build ld.so and new libraries to run the THP test under strace.
> -if /bin/sh -c \
> -  "timeout -k 4 $((3*$TIMEOUTFACTOR)) ${cmd} --direct 2>&1 \
> -   | grep -E \"madvise\(0x[0-9a-f]+, [0-9]+, 0xe)\""; then
> +output=$(timeout -k 4 $((3*$TIMEOUTFACTOR)) ${cmd} --direct 2>&1)
> +test $? = 77 && exit 77
> +if echo "${output}" | grep -E "madvise\(0x[0-9a-f]+, [0-9]+, 0xe)"; then

I think maybe it would be better to use 'printf '%s\n' "${output}"' to avoid
some shell like dash to avoid interprets backslash escapes (since this is a
strace output and we might have some eventually).

>    if test ${strace_expected} = yes; then
> -    exit 0
> +    status=0
>    else
> -    exit 1
> +    status=1
>    fi
>  else
>    if test ${strace_expected} = no; then
> -    exit 0
> +    status=0
>    else
> -    exit 1
> +    status=1
>    fi
>  fi
> +exit ${status}
> -- 
> 2.55.0
>
  
H.J. Lu Aug. 11, 2026, 4:18 a.m. UTC | #3
On Tue, Aug 11, 2026 at 2:52 AM Adhemerval Zanella Netto
<adhemerval.zanella@linaro.org> wrote:
>
>
>
> On 21/07/26 05:34, H.J. Lu wrote:
> > Change strace-tst-thp.sh to check the command exit status so that
> > unsupported THP tests exit with status 77.
> >
> >
> > From 664b271b81da6d57eefac7cd7d6b529dfbf5755c Mon Sep 17 00:00:00 2001
> > From: "H.J. Lu" <hjl.tools@gmail.com>
> > Date: Sat, 4 Jul 2026 11:06:21 +0800
> > Subject: [PATCH v6] strace-tst-thp.sh: Allow unsupported THP tests
> >
> > Change strace-tst-thp.sh to check the command exit status so that
> > unsupported THP tests exit with status 77.
> >
> > Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
>
> LGTM, thanks.  Some minor suggestions below, no need to send a new version.
>
> Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
>
> > ---
> >  sysdeps/unix/sysv/linux/strace-tst-thp.sh | 24 +++++++++++------------
> >  1 file changed, 11 insertions(+), 13 deletions(-)
> >
> > diff --git a/sysdeps/unix/sysv/linux/strace-tst-thp.sh b/sysdeps/unix/sysv/linux/strace-tst-thp.sh
> > index bff7d3e7a0..1c2b7255ac 100644
> > --- a/sysdeps/unix/sysv/linux/strace-tst-thp.sh
> > +++ b/sysdeps/unix/sysv/linux/strace-tst-thp.sh
> > @@ -1,4 +1,4 @@
> > -#!/bin/bash
> > +#!/bin/sh
> >  # Run THP test under strace to verify control of the THP segment load.
> >  # Copyright (C) 2026 Free Software Foundation, Inc.
> >  # This file is part of the GNU C Library.
> > @@ -17,8 +17,6 @@
> >  # License along with the GNU C Library; if not, see
> >  # <https://www.gnu.org/licenses/>.
> >
> > -set -e
> > -
> >  rtld="$1"
> >  test_wrapper_env="$2"
> >  run_program_env="$3"
> > @@ -39,24 +37,24 @@ esac
> >
> >  # Verify strace is not just present, but works in this environment.  If
> >  # not, skip the test.
> > -/bin/sh -c \
> > - "${test_wrapper_env} ${run_program_env} \
> > -  strace -X raw -e trace=none -- /bin/true" > /dev/null 2>&1 || exit 77
> > +${test_wrapper_env} ${run_program_env} \
> > +  strace -X raw -e trace=none -- /bin/true > /dev/null 2>&1 || exit 77
> >
> >  # Finally the actual test inside the test environment, using the just
> >  # build ld.so and new libraries to run the THP test under strace.
> > -if /bin/sh -c \
> > -  "timeout -k 4 $((3*$TIMEOUTFACTOR)) ${cmd} --direct 2>&1 \
> > -   | grep -E \"madvise\(0x[0-9a-f]+, [0-9]+, 0xe)\""; then
> > +output=$(timeout -k 4 $((3*$TIMEOUTFACTOR)) ${cmd} --direct 2>&1)
> > +test $? = 77 && exit 77
> > +if echo "${output}" | grep -E "madvise\(0x[0-9a-f]+, [0-9]+, 0xe)"; then
>
> I think maybe it would be better to use 'printf '%s\n' "${output}"' to avoid
> some shell like dash to avoid interprets backslash escapes (since this is a
> strace output and we might have some eventually).

I changed it to

if printf "%s\n" "${output}" | grep -E "madvise\(0x[0-9a-f]+, [0-9]+,
0xe)"; then

and checked it in.

Thanks.

> >    if test ${strace_expected} = yes; then
> > -    exit 0
> > +    status=0
> >    else
> > -    exit 1
> > +    status=1
> >    fi
> >  else
> >    if test ${strace_expected} = no; then
> > -    exit 0
> > +    status=0
> >    else
> > -    exit 1
> > +    status=1
> >    fi
> >  fi
> > +exit ${status}
> > --
> > 2.55.0
> >
>
  

Patch

From 664b271b81da6d57eefac7cd7d6b529dfbf5755c Mon Sep 17 00:00:00 2001
From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Sat, 4 Jul 2026 11:06:21 +0800
Subject: [PATCH v6] strace-tst-thp.sh: Allow unsupported THP tests

Change strace-tst-thp.sh to check the command exit status so that
unsupported THP tests exit with status 77.

Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
---
 sysdeps/unix/sysv/linux/strace-tst-thp.sh | 24 +++++++++++------------
 1 file changed, 11 insertions(+), 13 deletions(-)

diff --git a/sysdeps/unix/sysv/linux/strace-tst-thp.sh b/sysdeps/unix/sysv/linux/strace-tst-thp.sh
index bff7d3e7a0..1c2b7255ac 100644
--- a/sysdeps/unix/sysv/linux/strace-tst-thp.sh
+++ b/sysdeps/unix/sysv/linux/strace-tst-thp.sh
@@ -1,4 +1,4 @@ 
-#!/bin/bash
+#!/bin/sh
 # Run THP test under strace to verify control of the THP segment load.
 # Copyright (C) 2026 Free Software Foundation, Inc.
 # This file is part of the GNU C Library.
@@ -17,8 +17,6 @@ 
 # License along with the GNU C Library; if not, see
 # <https://www.gnu.org/licenses/>.
 
-set -e
-
 rtld="$1"
 test_wrapper_env="$2"
 run_program_env="$3"
@@ -39,24 +37,24 @@  esac
 
 # Verify strace is not just present, but works in this environment.  If
 # not, skip the test.
-/bin/sh -c \
- "${test_wrapper_env} ${run_program_env} \
-  strace -X raw -e trace=none -- /bin/true" > /dev/null 2>&1 || exit 77
+${test_wrapper_env} ${run_program_env} \
+  strace -X raw -e trace=none -- /bin/true > /dev/null 2>&1 || exit 77
 
 # Finally the actual test inside the test environment, using the just
 # build ld.so and new libraries to run the THP test under strace.
-if /bin/sh -c \
-  "timeout -k 4 $((3*$TIMEOUTFACTOR)) ${cmd} --direct 2>&1 \
-   | grep -E \"madvise\(0x[0-9a-f]+, [0-9]+, 0xe)\""; then
+output=$(timeout -k 4 $((3*$TIMEOUTFACTOR)) ${cmd} --direct 2>&1)
+test $? = 77 && exit 77
+if echo "${output}" | grep -E "madvise\(0x[0-9a-f]+, [0-9]+, 0xe)"; then
   if test ${strace_expected} = yes; then
-    exit 0
+    status=0
   else
-    exit 1
+    status=1
   fi
 else
   if test ${strace_expected} = no; then
-    exit 0
+    status=0
   else
-    exit 1
+    status=1
   fi
 fi
+exit ${status}
-- 
2.55.0