Bug 15451

Summary: pcengines_apu2_defconfig: possibly truncated output in
Product: buildroot Reporter: Jan-Benedict Glaw <jbglaw>
Component: OtherAssignee: unassigned
Status: RESOLVED MOVED    
Severity: normal CC: buildroot, yann.morin.1998
Priority: P5    
Version: unspecified   
Target Milestone: ---   
Hardware: All   
OS: Linux   
Host: Target:
Build:

Description Jan-Benedict Glaw 2023-03-17 18:37:54 UTC 
Linux's ./tools/objtool (of the used kernel version) fails to build:

[build 2023-03-15 16:08:35]   /usr/bin/gcc -O2 -I/var/lib/laminar/run/buildroot-pcengines_apu2_defconfig/1/buildroot/output/host/include -L/var/lib/laminar/run/buildroot-pcengines_apu2_defcon
fig/1/buildroot/output/host/lib -Wl,-rpath,/var/lib/laminar/run/buildroot-pcengines_apu2_defconfig/1/buildroot/output/host/lib -Wp,-MD,/var/lib/laminar/run/buildroot-pcengines_apu2_defconfig/
1/buildroot/output/build/linux-5.16/tools/objtool/.check.o.d -Wp,-MT,/var/lib/laminar/run/buildroot-pcengines_apu2_defconfig/1/buildroot/output/build/linux-5.16/tools/objtool/check.o -Werror 
-Wbad-function-cast -Wdeclaration-after-statement -Wformat-security -Wformat-y2k -Winit-self -Wmissing-declarations -Wmissing-prototypes -Wnested-externs -Wno-system-headers -Wold-style-defin
ition -Wpacked -Wredundant-decls -Wstrict-prototypes -Wswitch-default -Wswitch-enum -Wundef -Wwrite-strings -Wformat -Wno-type-limits -Wstrict-aliasing=3 -Wshadow -Wno-switch-default -Wno-swi
tch-enum -Wno-packed -Wno-nested-externs -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer -std=gnu89 -g -I/var/lib/laminar/run/buildroot-pcengines_apu2_defconfig/1/buil
droot/output/build/linux-5.16/tools/include -I/var/lib/laminar/run/buildroot-pcengines_apu2_defconfig/1/buildroot/output/build/linux-5.16/tools/arch/x86/include/uapi -I/var/lib/laminar/run/bu
ildroot-pcengines_apu2_defconfig/1/buildroot/output/build/linux-5.16/tools/arch/x86/include -I/var/lib/laminar/run/buildroot-pcengines_apu2_defconfig/1/buildroot/output/build/linux-5.16/tools
/objtool/include -I/var/lib/laminar/run/buildroot-pcengines_apu2_defconfig/1/buildroot/output/build/linux-5.16/tools/objtool/arch/x86/include -I/var/lib/laminar/run/buildroot-pcengines_apu2_defconfig/1/buildroot/output/host/include -I/var/lib/laminar/run/buildroot-pcengines_apu2_defconfig/1/buildroot/output/build/linux-5.16/tools/lib -D"BUILD_STR(s)=#s" -c -o /var/lib/laminar/run/buildroot-pcengines_apu2_defconfig/1/buildroot/output/build/linux-5.16/tools/objtool/check.o check.c
[build 2023-03-15 16:08:36] check.c: In function 'validate_call':
[build 2023-03-15 16:08:36] check.c:2836:58: error: '%d' directive output may be truncated writing between 1 and 10 bytes into a region of size 9 [-Werror=format-truncation=]
[build 2023-03-15 16:08:36]  2836 |                 snprintf(pvname, sizeof(pvname), "pv_ops[%d]", idx);
[build 2023-03-15 16:08:36]       |                                                          ^~
[build 2023-03-15 16:08:36] In function 'call_dest_name',
[build 2023-03-15 16:08:36]     inlined from 'call_dest_name' at check.c:2824:27,
[build 2023-03-15 16:08:36]     inlined from 'validate_call' at check.c:2908:3:
[build 2023-03-15 16:08:36] check.c:2836:50: note: directive argument in the range [-268435456, 268435455]
[build 2023-03-15 16:08:36]  2836 |                 snprintf(pvname, sizeof(pvname), "pv_ops[%d]", idx);
[build 2023-03-15 16:08:36]       |                                                  ^~~~~~~~~~~~
[build 2023-03-15 16:08:36] check.c:2836:17: note: 'snprintf' output between 10 and 19 bytes into a destination of size 16
[build 2023-03-15 16:08:36]  2836 |                 snprintf(pvname, sizeof(pvname), "pv_ops[%d]", idx);
[build 2023-03-15 16:08:36]       |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[build 2023-03-15 16:08:36] check.c: In function 'validate_call':
[build 2023-03-15 16:08:36] check.c:2836:58: error: '%d' directive output may be truncated writing between 1 and 10 bytes into a region of size 9 [-Werror=format-truncation=]
[build 2023-03-15 16:08:36]  2836 |                 snprintf(pvname, sizeof(pvname), "pv_ops[%d]", idx);
[build 2023-03-15 16:08:36]       |                                                          ^~
[build 2023-03-15 16:08:36] In function 'call_dest_name',
[build 2023-03-15 16:08:36]     inlined from 'call_dest_name' at check.c:2824:27,
[build 2023-03-15 16:08:36]     inlined from 'validate_call' at check.c:2920:3:
[build 2023-03-15 16:08:36] check.c:2836:50: note: directive argument in the range [-268435456, 268435455]
[build 2023-03-15 16:08:36]  2836 |                 snprintf(pvname, sizeof(pvname), "pv_ops[%d]", idx);
[build 2023-03-15 16:08:36]       |                                                  ^~~~~~~~~~~~
[build 2023-03-15 16:08:36] check.c:2836:17: note: 'snprintf' output between 10 and 19 bytes into a destination of size 16
[build 2023-03-15 16:08:36]  2836 |                 snprintf(pvname, sizeof(pvname), "pv_ops[%d]", idx);
[build 2023-03-15 16:08:36]       |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[build 2023-03-15 16:08:36] check.c: In function 'validate_call':
[build 2023-03-15 16:08:36] check.c:2836:58: error: '%d' directive output may be truncated writing between 1 and 10 bytes into a region of size 9 [-Werror=format-truncation=]
[build 2023-03-15 16:08:36]  2836 |                 snprintf(pvname, sizeof(pvname), "pv_ops[%d]", idx);
[build 2023-03-15 16:08:36]       |                                                          ^~
[build 2023-03-15 16:08:36] In function 'call_dest_name',
[build 2023-03-15 16:08:36]     inlined from 'call_dest_name' at check.c:2824:27,
[build 2023-03-15 16:08:36]     inlined from 'validate_call' at check.c:2914:3:
[build 2023-03-15 16:08:36] check.c:2836:50: note: directive argument in the range [-268435456, 268435455]
[build 2023-03-15 16:08:36]  2836 |                 snprintf(pvname, sizeof(pvname), "pv_ops[%d]", idx);
[build 2023-03-15 16:08:36]       |                                                  ^~~~~~~~~~~~
[build 2023-03-15 16:08:36] check.c:2836:17: note: 'snprintf' output between 10 and 19 bytes into a destination of size 16
[build 2023-03-15 16:08:36]  2836 |                 snprintf(pvname, sizeof(pvname), "pv_ops[%d]", idx);
[build 2023-03-15 16:08:36]       |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[build 2023-03-15 16:08:38] cc1: all warnings being treated as errors
[build 2023-03-15 16:08:38] make[4]: *** [/var/lib/laminar/run/buildroot-pcengines_apu2_defconfig/1/buildroot/output/build/linux-5.16/tools/build/Makefile.build:97: /var/lib/laminar/run/buildroot-pcengines_apu2_defconfig/1/buildroot/output/build/linux-5.16/tools/objtool/check.o] Error 1
[build 2023-03-15 16:08:38] make[3]: *** [Makefile:56: /var/lib/laminar/run/buildroot-pcengines_apu2_defconfig/1/buildroot/output/build/linux-5.16/tools/objtool/objtool-in.o] Error 2
[build 2023-03-15 16:08:38] make[2]: *** [Makefile:69: objtool] Error 2
[build 2023-03-15 16:08:38] make[1]: *** [Makefile:1349: tools/objtool] Error 2
[build 2023-03-15 16:08:38] make[1]: Leaving directory '/var/lib/laminar/run/buildroot-pcengines_apu2_defconfig/1/buildroot/output/build/linux-5.16'
[build 2023-03-15 16:08:38] make: *** [package/pkg-generic.mk:293: /var/lib/laminar/run/buildroot-pcengines_apu2_defconfig/1/buildroot/output/build/linux-5.16/.stamp_built] Error 2


I guess that g:82880283d7fcd0a1d20964a56d6d1a5cc0df0713 (upstream Linux tree) would be a proper fix.

Full build log at http://toolchain.lug-owl.de/laminar/log/buildroot-pcengines_apu2_defconfig/1

(This is the last ticket. All other configurations were built successfully!)
Comment 1 Yann E. MORIN 2024-06-15 15:07:18 UTC 
Thank you for your report.

The issue tracker for the Buildroot project has been moved to
the Gitlab.com issue tracker:
    https://gitlab.com/buildroot.org/buildroot/-/issues

We are taking this opportunity to close old issues in this old
tracker. If you believe your issue is still relevant, please
open one in the new issue tracker.

Thank you!