sim: eBPF simulator

This patch introduces the basics of an instruction-simulator for eBPF.
The simulator is based on CGEN.

gdb/ChangeLog:

2020-08-04  Jose E. Marchesi  <jose.marchesi@oracle.com>

	* configure.tgt: Set gdb_sim for bpf-*-* targets.

sim/ChangeLog:

2020-08-04  Jose E. Marchesi  <jose.marchesi@oracle.com>
	    David Faust <david.faust@oracle.com>

	* configure.tgt (sim_arch): Add entry for bpf-*-*.
	* configure: Regenerate.
	* MAINTAINERS: Add maintainer for the BPF simulator.
	* bpf/Makefile.in: New file.
	* bpf/bpf-helpers.c: Likewise.
	* bpf/bpf-helpers.def: Likewise.
	* bpf/bpf-helpers.h: Likewise.
	* bpf/bpf-sim.h: Likewise.
	* bpf/bpf.c: Likewise.
	* bpf/config.in: Likewise.
	* bpf/configure.ac: Likewise.
	* bpf/decode.h: Likewise.
	* bpf/eng.h: Likewise.
	* bpf/mloop.in: Likewise.
	* bpf/sim-if.c: Likewise.
	* bpf/sim-main.h: Likewise.
	* bpf/traps.c: Likewise.
	* bpf/configure: Generate.
	* bpf/aclocal.m4: Likewise.

sim/testsuite/ChangeLog:

2020-08-04  David Faust  <david.faust@oracle.com>
	    Jose E. Marchesi  <jose.marchesi@oracle.com>

	* configure: Regenerate.
	* sim/bpf/allinsn.exp: New file.
	* sim/bpf/alu.s: Likewise.
	* sim/bpf/alu32.s: Likewise.
	* sim/bpf/endbe.s: Likewise.
	* sim/bpf/endle.s: Likewise.
	* sim/bpf/jmp.s: Likewise.
	* sim/bpf/jmp32.s: Likewise.
	* sim/bpf/ldabs.s: Likewise.
	* sim/bpf/mem.s: Likewise.
	* sim/bpf/mov.s: Likewise.
	* sim/bpf/testutils.inc: Likewise.
	* sim/bpf/xadd.s: Likewise.
This commit is contained in:
Jose E. Marchesi
2020-08-04 18:09:16 +02:00
parent 39791af2a2
commit b26e2ae7d3
36 changed files with 18708 additions and 0 deletions

15942
sim/bpf/configure vendored Executable file

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