[dpdk-dev] [Bug 683] librte_pipeline build failures on CentOS 7

[bugzilla at dpdk.org]

https://bugs.dpdk.org/show_bug.cgi?id=683

            Bug ID: 683
           Summary: librte_pipeline build failures on CentOS 7
           Product: DPDK
           Version: unspecified
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: other
          Assignee: dev at dpdk.org
          Reporter: alialnu at nvidia.com
                CC: cristian.dumitrescu at intel.com
  Target Milestone: ---

```
$ meson --werror --buildtype=release build && ninja-build -C build

[555/2604] Compiling C object
lib/librte_pipeline.a.p/librte_pipeline_rte_swx_pipeline.c.o
FAILED: lib/librte_pipeline.a.p/librte_pipeline_rte_swx_pipeline.c.o
ccache cc -Ilib/librte_pipeline.a.p -Ilib -I../lib -Ilib/librte_pipeline
-I../lib/librte_pipeline -I. -I.. -Iconfig -I../config -Ilib/librte_eal/include
-I../lib/librte_eal/include -Ilib/librte_eal/linux/include
-I../lib/librte_eal/linux/include -Ilib/librte_eal/x86/include
-I../lib/librte_eal/x86/include -Ilib/librte_eal/common
-I../lib/librte_eal/common -Ilib/librte_eal -I../lib/librte_eal
-Ilib/librte_kvargs -I../lib/librte_kvargs -Ilib/librte_metrics
-I../lib/librte_metrics -Ilib/librte_telemetry -I../lib/librte_telemetry
-Ilib/librte_port -I../lib/librte_port -Ilib/librte_ethdev
-I../lib/librte_ethdev -Ilib/librte_net -I../lib/librte_net -Ilib/librte_mbuf
-I../lib/librte_mbuf -Ilib/librte_mempool -I../lib/librte_mempool
-Ilib/librte_ring -I../lib/librte_ring -Ilib/librte_meter -I../lib/librte_meter
-Ilib/librte_sched -I../lib/librte_sched -Ilib/librte_ip_frag
-I../lib/librte_ip_frag -Ilib/librte_hash -I../lib/librte_hash -Ilib/librte_rcu
-I../lib/librte_rcu -Ilib/librte_cryptodev -I../lib/librte_cryptodev
-Ilib/librte_eventdev -I../lib/librte_eventdev -Ilib/librte_timer
-I../lib/librte_timer -Ilib/librte_kni -I../lib/librte_kni -Ilib/librte_pci
-I../lib/librte_pci -Ilib/librte_table -I../lib/librte_table -Ilib/librte_lpm
-I../lib/librte_lpm -Ilib/librte_acl -I../lib/librte_acl -pipe
-D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Werror -O3 -include rte_config.h
-Wextra -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 -fPIC
-march=native -DALLOW_EXPERIMENTAL_API -DALLOW_INTERNAL_API -MD -MQ
lib/librte_pipeline.a.p/librte_pipeline_rte_swx_pipeline.c.o -MF
lib/librte_pipeline.a.p/librte_pipeline_rte_swx_pipeline.c.o.d -o
lib/librte_pipeline.a.p/librte_pipeline_rte_swx_pipeline.c.o -c
../lib/librte_pipeline/rte_swx_pipeline.c
../lib/librte_pipeline/rte_swx_pipeline.c: In function 'instr_translate':
../lib/librte_pipeline/rte_swx_pipeline.c:4202:30: error: 'src_struct_id' may
be used uninitialized in this function [-Werror=maybe-uninitialized]
   instr->alu.src.struct_id = (uint8_t)src_struct_id;
                              ^
../lib/librte_pipeline/rte_swx_pipeline.c:4181:26: note: 'src_struct_id' was
declared here
  uint32_t dst_struct_id, src_struct_id;
                          ^
../lib/librte_pipeline/rte_swx_pipeline.c:4216:29: error: 'dst_struct_id' may
be used uninitialized in this function [-Werror=maybe-uninitialized]
  instr->alu.dst.struct_id = (uint8_t)dst_struct_id;
                             ^
../lib/librte_pipeline/rte_swx_pipeline.c:4181:11: note: 'dst_struct_id' was
declared here
  uint32_t dst_struct_id, src_struct_id;
           ^
../lib/librte_pipeline/rte_swx_pipeline.c:3966:30: error: 'src_struct_id' may
be used uninitialized in this function [-Werror=maybe-uninitialized]
   instr->alu.src.struct_id = (uint8_t)src_struct_id;
                              ^
../lib/librte_pipeline/rte_swx_pipeline.c:3945:26: note: 'src_struct_id' was
declared here
  uint32_t dst_struct_id, src_struct_id;
                          ^
../lib/librte_pipeline/rte_swx_pipeline.c:3980:29: error: 'dst_struct_id' may
be used uninitialized in this function [-Werror=maybe-uninitialized]
  instr->alu.dst.struct_id = (uint8_t)dst_struct_id;
                             ^
../lib/librte_pipeline/rte_swx_pipeline.c:3945:11: note: 'dst_struct_id' was
declared here
  uint32_t dst_struct_id, src_struct_id;
           ^
../lib/librte_pipeline/rte_swx_pipeline.c:3913:30: error: 'src_struct_id' may
be used uninitialized in this function [-Werror=maybe-uninitialized]
   instr->alu.src.struct_id = (uint8_t)src_struct_id;
                              ^
../lib/librte_pipeline/rte_swx_pipeline.c:3892:26: note: 'src_struct_id' was
declared here
  uint32_t dst_struct_id, src_struct_id;
                          ^
../lib/librte_pipeline/rte_swx_pipeline.c:3927:29: error: 'dst_struct_id' may
be used uninitialized in this function [-Werror=maybe-uninitialized]
  instr->alu.dst.struct_id = (uint8_t)dst_struct_id;
                             ^
../lib/librte_pipeline/rte_swx_pipeline.c:3892:11: note: 'dst_struct_id' was
declared here
  uint32_t dst_struct_id, src_struct_id;
           ^
../lib/librte_pipeline/rte_swx_pipeline.c:3648:30: error: 'src_struct_id' may
be used uninitialized in this function [-Werror=maybe-uninitialized]
   instr->mov.src.struct_id = (uint8_t)src_struct_id;
                              ^
../lib/librte_pipeline/rte_swx_pipeline.c:3627:26: note: 'src_struct_id' was
declared here
  uint32_t dst_struct_id, src_struct_id;
                          ^
../lib/librte_pipeline/rte_swx_pipeline.c:3662:29: error: 'dst_struct_id' may
be used uninitialized in this function [-Werror=maybe-uninitialized]
  instr->mov.dst.struct_id = (uint8_t)dst_struct_id;
                             ^
../lib/librte_pipeline/rte_swx_pipeline.c:3627:11: note: 'dst_struct_id' was
declared here
  uint32_t dst_struct_id, src_struct_id;
           ^
cc1: all warnings being treated as errors
[588/2604] Compiling C object
lib/librte_pipeline.a.p/librte_pipeline_rte_table_action.c.o
ninja: build stopped: subcommand failed.
```

OS: CentOS 7.9.2009
gcc: 4.8.5
meson: 0.55.1
ninja-build: 1.10.2

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