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15.20.9723.000; Thu, 12 Mar 2026 18:52:42 +0000 Content-Type: multipart/alternative; boundary="------------rr0D04eggyQxjhYNsrlaPupv" Message-ID: <026e2eed-609c-4689-b593-a33333957bdc@windriver.com> Date: Thu, 12 Mar 2026 14:52:39 -0400 User-Agent: Mozilla Thunderbird Subject: Re: [OE-core] [PATCH v4 8/8] busybox: fix printf ptest failure with glibc 2.43 To: Hemanth.KumarMD@windriver.com, openembedded-core@lists.openembedded.org Cc: Sundeep.Kokkonda@windriver.com References: <20260312161038.2578649-1-Hemanth.KumarMD@windriver.com> <20260312161038.2578649-8-Hemanth.KumarMD@windriver.com> Content-Language: en-CA From: Randy MacLeod In-Reply-To: <20260312161038.2578649-8-Hemanth.KumarMD@windriver.com> X-ClientProxiedBy: SJ0PR03CA0342.namprd03.prod.outlook.com (2603:10b6:a03:39c::17) To CH3PR11MB8496.namprd11.prod.outlook.com (2603:10b6:610:1ba::22) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH3PR11MB8496:EE_|LV3PR11MB8553:EE_ 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authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603120153 List-Id: X-Webhook-Received: from 45-33-107-173.ip.linodeusercontent.com [45.33.107.173] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Thu, 12 Mar 2026 18:52:51 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/233000 --------------rr0D04eggyQxjhYNsrlaPupv Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by mx0a-0064b401.pphosted.com id 62CAZ29M3563852 Hi Hemanth, On 2026-03-12 12:10 p.m., Hemanth Kumar M D via lists.openembedded.org=20 wrote: > From: Hemanth Kumar M D > > Following ptests were failing on aarch64 after glibc 2.43 upgrade: > - printf_understands_%s_'"x'_"'y"_"'zTAIL" > - printf_handles_positive_numbers_for_%f > > Backport fix from Debian bug #1128825. > > References:https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=3D1128825 > > Signed-off-by: Hemanth Kumar M D > --- > ...printf-ptest-failure-with-glibc-2.43.patch | 114 +++++++++++++++++= + > meta/recipes-core/busybox/busybox_1.37.0.bb | 1 + > 2 files changed, 115 insertions(+) > create mode 100644 meta/recipes-core/busybox/busybox/0001-busybox-fix= -printf-ptest-failure-with-glibc-2.43.patch > > diff --git a/meta/recipes-core/busybox/busybox/0001-busybox-fix-printf-= ptest-failure-with-glibc-2.43.patch b/meta/recipes-core/busybox/busybox/0= 001-busybox-fix-printf-ptest-failure-with-glibc-2.43.patch > new file mode 100644 > index 0000000000..951812532b > --- /dev/null > +++ b/meta/recipes-core/busybox/busybox/0001-busybox-fix-printf-ptest-f= ailure-with-glibc-2.43.patch > @@ -0,0 +1,114 @@ > +busybox: fix printf ptest failure with glibc 2.43 > + > +Following ptests were failing on aarch64 after glibc 2.43 upgrade: > + - printf_understands_%s_'"x'_"'y"_"'zTAIL" > + - printf_handles_positive_numbers_for_%f > + > +Backport fix from Debian bug #1128825. > + > +Upstream-Status: Submitted [https://bugs.debian.org/cgi-bin/bugreport.= cgi?att=3D1;bug=3D1128825;filename=3Dbusybox_glibc-2.43_thp.patch;msg=3D1= 0] This status is fine for now but please submit a follow-up commit to=20 change the Upstream-Status once you have done the work below. This URL isn't what we usually mean by "upstream" since it's Debian not=20 the busybox folks. Also there's no evidence that that patch was submitted to the busybox=20 devs so the "Submitted" status may also be incorrect. It's good to cite your sources=C2=A0 but please review: https://lists.busybox.net/pipermail/busybox/ and git upstream busybox git repo: =C2=A0 =C2=A0git://busybox.net/busybox.git to see if the "true" upstream has a submitted or merged fix. If not, please send them the Debian fix and CC the developer ensuring that you don't change the folks from: https://bugs.debian.org/cgi-bin/bugreport.cgi?att=3D1;bug=3D1128825 Thanks, ../Randy > + > +Signed-off-by: Hemanth Kumar M D > + > +diff --git a/coreutils/printf.c b/coreutils/printf.c > +index 3cd48cfcc..a5d995ab5 100644 > +--- a/coreutils/printf.c > ++++ b/coreutils/printf.c > +@@ -191,6 +191,7 @@ static void print_direc(char *format, unsigned fmt= _length, > + double dv; > + char saved; > + char *have_prec, *have_width; > ++ int saved_errno, ret; > + > + saved =3D format[fmt_length]; > + format[fmt_length] =3D '\0'; > +@@ -205,22 +206,32 @@ static void print_direc(char *format, unsigned f= mt_length, > + > + switch (format[fmt_length - 1]) { > + case 'c': > +- printf(format, *argument); > ++ saved_errno =3D errno; > ++ ret =3D printf(format, *argument); > ++ /* Restore errno if there was no error */ > ++ if (ret >=3D 0) { > ++ errno =3D saved_errno; > ++ } > + break; > + case 'd': > + case 'i': > + llv =3D my_xstrtoll(skip_whitespace(argument)); > + print_long: > ++ saved_errno =3D errno; > + if (!have_width) { > + if (!have_prec) > +- printf(format, llv); > ++ ret =3D printf(format, llv); > + else > +- printf(format, precision, llv); > ++ ret =3D printf(format, precision, llv); > + } else { > + if (!have_prec) > +- printf(format, field_width, llv); > ++ ret =3D printf(format, field_width, llv); > + else > +- printf(format, field_width, precision, llv); > ++ ret =3D printf(format, field_width, precision, llv); > ++ } > ++ /* Restore errno if there was no error */ > ++ if (ret >=3D 0) { > ++ errno =3D saved_errno; > + } > + break; > + case 'o': > +@@ -238,16 +249,21 @@ static void print_direc(char *format, unsigned f= mt_length, > + } else { > + /* Hope compiler will optimize it out by moving call > + * instruction after the ifs... */ > ++ saved_errno =3D errno; > + if (!have_width) { > + if (!have_prec) > +- printf(format, argument, /*unused:*/ argument, argument); > ++ ret =3D printf(format, argument, /*unused:*/ argument, argument)= ; > + else > +- printf(format, precision, argument, /*unused:*/ argument); > ++ ret =3D printf(format, precision, argument, /*unused:*/ argument= ); > + } else { > + if (!have_prec) > +- printf(format, field_width, argument, /*unused:*/ argument); > ++ ret =3D printf(format, field_width, argument, /*unused:*/ argume= nt); > + else > +- printf(format, field_width, precision, argument); > ++ ret =3D printf(format, field_width, precision, argument); > ++ } > ++ /* Restore errno if there was no error */ > ++ if (ret >=3D 0) { > ++ errno =3D saved_errno; > + } > + break; > + } > +@@ -257,16 +273,21 @@ static void print_direc(char *format, unsigned f= mt_length, > + case 'g': > + case 'G': > + dv =3D my_xstrtod(argument); > ++ saved_errno =3D errno; > + if (!have_width) { > + if (!have_prec) > +- printf(format, dv); > ++ ret =3D printf(format, dv); > + else > +- printf(format, precision, dv); > ++ ret =3D printf(format, precision, dv); > + } else { > + if (!have_prec) > +- printf(format, field_width, dv); > ++ ret =3D printf(format, field_width, dv); > + else > +- printf(format, field_width, precision, dv); > ++ ret =3D printf(format, field_width, precision, dv); > ++ } > ++ /* Restore errno if there was no error */ > ++ if (ret >=3D 0) { > ++ errno =3D saved_errno; > + } > + break; > + } /* switch */ > diff --git a/meta/recipes-core/busybox/busybox_1.37.0.bb b/meta/recipes= -core/busybox/busybox_1.37.0.bb > index d3851a27b9..2a38372339 100644 > --- a/meta/recipes-core/busybox/busybox_1.37.0.bb > +++ b/meta/recipes-core/busybox/busybox_1.37.0.bb > @@ -59,6 +59,7 @@ SRC_URI =3D"https://busybox.net/downloads/busybox-${P= V}.tar.bz2;name=3Dtarball \=20 > file://CVE-2025-46394-01.patch \ file://CVE-2025-46394-02.patch \=20 > file://CVE-2025-60876.patch \ +=20 > file://0001-busybox-fix-printf-ptest-failure-with-glibc-2.43.patch \ " > SRC_URI:append:libc-musl =3D" file://musl.cfg" > SRC_URI:append:x86-64 =3D" file://sha_accel.cfg" > > -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- > Links: You receive all messages sent to this group. > View/Reply Online (#232994):https://lists.openembedded.org/g/openembedd= ed-core/message/232994 > Mute This Topic:https://lists.openembedded.org/mt/118281850/3616765 > Group Owner:openembedded-core+owner@lists.openembedded.org > Unsubscribe:https://lists.openembedded.org/g/openembedded-core/unsub [r= andy.macleod@windriver.com] > -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- > --=20 # Randy MacLeod # Wind River Linux --------------rr0D04eggyQxjhYNsrlaPupv Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit
Hi Hemanth,

On 2026-03-12 12:10 p.m., Hemanth Kumar M D via lists.openembedded.org wrote:
From: Hemanth Kumar M D <Hemanth.KumarMD@windriver.com>

Following ptests were failing on aarch64 after glibc 2.43 upgrade:
  - printf_understands_%s_'"x'_"'y"_"'zTAIL"
  - printf_handles_positive_numbers_for_%f

Backport fix from Debian bug #1128825.

References: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1128825

Signed-off-by: Hemanth Kumar M D <Hemanth.KumarMD@windriver.com>
---
 ...printf-ptest-failure-with-glibc-2.43.patch | 114 ++++++++++++++++++
 meta/recipes-core/busybox/busybox_1.37.0.bb   |   1 +
 2 files changed, 115 insertions(+)
 create mode 100644 meta/recipes-core/busybox/busybox/0001-busybox-fix-printf-ptest-failure-with-glibc-2.43.patch

diff --git a/meta/recipes-core/busybox/busybox/0001-busybox-fix-printf-ptest-failure-with-glibc-2.43.patch b/meta/recipes-core/busybox/busybox/0001-busybox-fix-printf-ptest-failure-with-glibc-2.43.patch
new file mode 100644
index 0000000000..951812532b
--- /dev/null
+++ b/meta/recipes-core/busybox/busybox/0001-busybox-fix-printf-ptest-failure-with-glibc-2.43.patch
@@ -0,0 +1,114 @@
+busybox: fix printf ptest failure with glibc 2.43
+
+Following ptests were failing on aarch64 after glibc 2.43 upgrade:
+  - printf_understands_%s_'"x'_"'y"_"'zTAIL"
+  - printf_handles_positive_numbers_for_%f
+
+Backport fix from Debian bug #1128825.
+
+Upstream-Status: Submitted [https://bugs.debian.org/cgi-bin/bugreport.cgi?att=1;bug=1128825;filename=busybox_glibc-2.43_thp.patch;msg=10]
This status is fine for now but please submit a follow-up commit to change the Upstream-Status
once you have done the work below.

This URL isn't what we usually mean by "upstream" since it's Debian not the busybox folks.
Also there's no evidence that that patch was submitted to the busybox devs so the "Submitted"
status may also be incorrect.

It's good to cite your sources  but please review:
   https://lists.busybox.net/pipermail/busybox/
and git upstream busybox git repo:
   git://busybox.net/busybox.git

to see if the "true" upstream has a submitted or merged fix.

If not, please send them the Debian fix and CC the developer
ensuring that you don't change the folks from:

   https://bugs.debian.org/cgi-bin/bugreport.cgi?att=1;bug=1128825


Thanks,

../Randy


+
+Signed-off-by: Hemanth Kumar M D <Hemanth.KumarMD@windriver.com>
+
+diff --git a/coreutils/printf.c b/coreutils/printf.c
+index 3cd48cfcc..a5d995ab5 100644
+--- a/coreutils/printf.c
++++ b/coreutils/printf.c
+@@ -191,6 +191,7 @@ static void print_direc(char *format, unsigned fmt_length,
+ 	double dv;
+ 	char saved;
+ 	char *have_prec, *have_width;
++	int saved_errno, ret;
+ 
+ 	saved = format[fmt_length];
+ 	format[fmt_length] = '\0';
+@@ -205,22 +206,32 @@ static void print_direc(char *format, unsigned fmt_length,
+ 
+ 	switch (format[fmt_length - 1]) {
+ 	case 'c':
+-		printf(format, *argument);
++		saved_errno = errno;
++		ret = printf(format, *argument);
++		/* Restore errno if there was no error */
++		if (ret >= 0) {
++			errno = saved_errno;
++		}
+ 		break;
+ 	case 'd':
+ 	case 'i':
+ 		llv = my_xstrtoll(skip_whitespace(argument));
+  print_long:
++		saved_errno = errno;
+ 		if (!have_width) {
+ 			if (!have_prec)
+-				printf(format, llv);
++				ret = printf(format, llv);
+ 			else
+-				printf(format, precision, llv);
++				ret = printf(format, precision, llv);
+ 		} else {
+ 			if (!have_prec)
+-				printf(format, field_width, llv);
++				ret = printf(format, field_width, llv);
+ 			else
+-				printf(format, field_width, precision, llv);
++				ret = printf(format, field_width, precision, llv);
++		}
++		/* Restore errno if there was no error */
++		if (ret >= 0) {
++			errno = saved_errno;
+ 		}
+ 		break;
+ 	case 'o':
+@@ -238,16 +249,21 @@ static void print_direc(char *format, unsigned fmt_length,
+ 		} else {
+ 			/* Hope compiler will optimize it out by moving call
+ 			 * instruction after the ifs... */
++			saved_errno = errno;
+ 			if (!have_width) {
+ 				if (!have_prec)
+-					printf(format, argument, /*unused:*/ argument, argument);
++					ret = printf(format, argument, /*unused:*/ argument, argument);
+ 				else
+-					printf(format, precision, argument, /*unused:*/ argument);
++					ret = printf(format, precision, argument, /*unused:*/ argument);
+ 			} else {
+ 				if (!have_prec)
+-					printf(format, field_width, argument, /*unused:*/ argument);
++					ret = printf(format, field_width, argument, /*unused:*/ argument);
+ 				else
+-					printf(format, field_width, precision, argument);
++					ret = printf(format, field_width, precision, argument);
++			}
++			/* Restore errno if there was no error */
++			if (ret >= 0) {
++				errno = saved_errno;
+ 			}
+ 			break;
+ 		}
+@@ -257,16 +273,21 @@ static void print_direc(char *format, unsigned fmt_length,
+ 	case 'g':
+ 	case 'G':
+ 		dv = my_xstrtod(argument);
++		saved_errno = errno;
+ 		if (!have_width) {
+ 			if (!have_prec)
+-				printf(format, dv);
++				ret = printf(format, dv);
+ 			else
+-				printf(format, precision, dv);
++				ret = printf(format, precision, dv);
+ 		} else {
+ 			if (!have_prec)
+-				printf(format, field_width, dv);
++				ret = printf(format, field_width, dv);
+ 			else
+-				printf(format, field_width, precision, dv);
++				ret = printf(format, field_width, precision, dv);
++		}
++		/* Restore errno if there was no error */
++		if (ret >= 0) {
++			errno = saved_errno;
+ 		}
+ 		break;
+ 	} /* switch */
diff --git a/meta/recipes-core/busybox/busybox_1.37.0.bb b/meta/recipes-core/busybox/busybox_1.37.0.bb
index d3851a27b9..2a38372339 100644
--- a/meta/recipes-core/busybox/busybox_1.37.0.bb
+++ b/meta/recipes-core/busybox/busybox_1.37.0.bb
@@ -59,6 +59,7 @@ SRC_URI = "https://busybox.net/downloads/busybox-${PV}.tar.bz2;name=tarball \
            file://CVE-2025-46394-01.patch \
            file://CVE-2025-46394-02.patch \
            file://CVE-2025-60876.patch \
+           file://0001-busybox-fix-printf-ptest-failure-with-glibc-2.43.patch \ 
            "
 SRC_URI:append:libc-musl = " file://musl.cfg"
 SRC_URI:append:x86-64 = " file://sha_accel.cfg"


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-- 
# Randy MacLeod
# Wind River Linux
--------------rr0D04eggyQxjhYNsrlaPupv--