Release v1.2.4.4 (#4180)

Changelog:
- Change PNA port width to 32 instead of 9. (4177) [Fabian Ruffy]
- Build the libbpf library during the cmake configuration process (4166) [Fabian Ruffy]
- backends/ebpf: Add support for XDP model. (4160) [Thomas Calvert]
- Dpdk backend: Remove illegal instruction generation, reject operations on >64bit operands (4171) [Usha Gupta]
- [P4Testgen] Remove untested/unreliable P4Testgen features. (4165) [Fabian Ruffy]
- Do not panic when user specifies impossible types for declarations (4169) [Mihai Budiu]
- backends/ebpf: Fix 4098 by renaming conflicting write_partial macro. (4134) [Thomas Calvert]
- Do not allow 'void' for lookahead type (4148) [Mihai Budiu]
- Increase the timeout of the switch.p4 p4_14 program. (4164) [Fabian Ruffy]
- [P4Testgen] Minor improvements and fixes for P4Testgen.  (4162) [Fabian Ruffy]
- Hashvec-based maps to save memory (4150) [Chris Dodd]
- Move solver class to lib folder. (4091) [Fabian Ruffy]
- Fix whole header move instructions for DPDK (4153) [Usha Gupta]
- Add error message for non-package main declaration (4141) [Jiri Havranek]
- Do not use equ for mandating a minimum size. (4154) [Fabian Ruffy]
- eBPF backend: generate P4Runtime files if required (4113) [Jan Palimąka]
- Allow lookahead of structs with size of 0 (4149) [Mihai Budiu]
- Fix incorrect learn action in case of learner table invoked from nested controls [Gupta, Usha]
- Sane handling of P4C_DEFAULT_X envvars in p4c (4130) [Chris Dodd]
- Separate Parser and Post-parser code C code (4138) [Komal Jain]
- Add error message for slice with negative indexes (4137) [Jiri Havranek]
- Fix invalid string format specifier (4145) [Jiri Havranek]
- Perform type inference after constant-folding a code fragment (4135) [Mihai Budiu]
- Fix incorrect installation link in P4Testgen README (4131) [Fabian Ruffy]
- Resolve P4tc ebpf c issues (4115) [Komal Jain]
- ci/release: enable push (4128) [Radostin Stoyanov]

Co-authored-by: rst0git <[email protected]>

Version.txt

@@ -1 +1 @@
-1.2.4.3
+1.2.4.4