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DPDK build failed with clang on Ubuntu26.04

DPDK/core Bug 1974 [email protected] 1 participant 2 messages Jul 30 – Aug 11

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http://bugs.dpdk.org/show_bug.cgi?id=1974

            Bug ID: 1974
           Summary: [dpdk24.11.7-rc1] DPDK build failed with clang on
                    Ubuntu26.04
           Product: DPDK
           Version: 24.11
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: core
          Assignee: [email protected]
          Reporter: [email protected]

Target Milestone: ---

[Environment]
DPDK version:
commit e06a047b5b00c97462ddc8208d7f152c6766b378 (HEAD, tag: v24.11.7-rc1,
origin/24.11)
OS: Ubuntu26.04/7.0.0-14-generic
Compiler: clang version 21.1.8

[Test Setup]

# build cmd: 
CC=clang meson --werror -Dlibdir=lib -Dexamples=all --default-library=static
x86_64-native-linuxapp-clang
ninja -C x86_64-native-linuxapp-clang/

[Output]
ninja: Entering directory `x86_64-native-linuxapp-clang/' [2926/3392] Compiling C object app/dpdk-test-bbdev.p/test-bbdev_test_bbdev.c.o
FAILED: app/dpdk-test-bbdev.p/test-bbdev_test_bbdev.c.o
clang -Iapp/dpdk-test-bbdev.p -Iapp -I../app -Ilib/bbdev -I../lib/bbdev -I. -I.. -Iconfig -I../config -Ilib/eal/include -I../lib/eal/include -Ilib/eal/linux/include -I../lib/eal/linux/include -Ilib/eal/x86/include -I../lib/eal/x86/include -I../kernel/linux -Ilib/eal/common -I../lib/eal/common -Ilib/eal -I../lib/eal -Ilib/kvargs -I../lib/kvargs -Ilib/log -I../lib/log -Ilib/metrics -I../lib/metrics -Ilib/telemetry -I../lib/telemetry -Ilib/mbuf -I../lib/mbuf -Ilib/mempool -I../lib/mempool -Ilib/ring -I../lib/ring -Idrivers/bus/vdev -I../drivers/bus/vdev -Idrivers/baseband/fpga_lte_fec -I../drivers/baseband/fpga_lte_fec -Ilib/pci -I../lib/pci -Idrivers/bus/pci -I../drivers/bus/pci -I../drivers/bus/pci/linux -Idrivers/baseband/fpga_5gnr_fec -I../drivers/baseband/fpga_5gnr_fec -Idrivers/baseband/acc -I../drivers/baseband/acc -Idrivers/baseband/la12xx -I../drivers/baseband/la12xx -fdiagnostics-color=always -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wextra -Werror -std=c11 -O3 -include rte_config.h -Wcast-qual -Wdeprecated -Wformat -Wformat-nonliteral -Wformat-security -Wmissing-declarations -Wmissing-prototypes -Wnested-externs -Wold-style-definition -Wpointer-arith -Wsign-compare -Wstrict-prototypes -Wundef -Wwrite-strings -Wno-missing-field-initializers -D_GNU_SOURCE -march=native -mrtm -DALLOW_EXPERIMENTAL_API -MD -MQ app/dpdk-test-bbdev.p/test-bbdev_test_bbdev.c.o -MF app/dpdk-test-bbdev.p/test-bbdev_test_bbdev.c.o.d -o app/dpdk-test-bbdev.p/test-bbdev_test_bbdev.c.o -c ../app/test-bbdev/test_bbdev.c ../app/test-bbdev/test_bbdev.c:819:4: error: format specifies type 'unsigned char' but the argument has type 'uint16_t' (aka 'unsigned short') [-Werror,-Wformat]

  816 |         TEST_ASSERT(dev1->data->dev_id < RTE_BBDEV_MAX_DEVS,
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  817 |                         "Failed test rte_bbdev_allocate: "
      |                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  818 |                         "invalid dev_id %" PRIu8 ", max number of
devices %d ",
      |                        
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  819 |                         dev1->data->dev_id, RTE_BBDEV_MAX_DEVS);
      |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

../app/test-bbdev/main.h:30:37: note: expanded from macro 'TEST_ASSERT'
30 | msg "\n", __func__, __LINE__,
##__VA_ARGS__); \
| ~~~
^~~~~~~~~~~
1 error generated.
[2937/3392] Compiling C object app/dpdk-test-bbdev.p/test-bbdev_test_bbdev_perf.c.o
ninja: build stopped: subcommand failed.

[Expected Result]
Build Passed

This issue was discovered on the new Ubuntu 26 OS.
No issues were encountered when running version v24.11.7-rc1 on Ubuntu 24.04. Ubuntu 24.04 environment:
Ubuntu 24.04.3 LTS/Linux 6.8.0-41-generic
Compiler: clang 18.1.3

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#1 lore raw

http://bugs.dpdk.org/show_bug.cgi?id=1974

Luca Boccassi ([email protected]) changed:

What |Removed |Added
----------------------------------------------------------------------------

         Resolution|---                         |FIXED
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #3 from Luca Boccassi ([email protected]) --- This was fixed by "coincidence" in main by commit 7c7189c4b82440f2de5b9f2328a9c6fed91d92de which was not marked for backports, I'll include that

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