From: Dmitry Selyutin <ghostmansd@gmail.com>
Date: Thu, 21 Sep 2023 20:39:12 +0000 (+0300)
Subject: caveat: generate ecall.h
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=97e66b71006a8e1ea9957c7cb80078abbc01d9e3;p=cavatools.git

caveat: generate ecall.h
---

diff --git a/caveat/.gitignore b/caveat/.gitignore
index 101bf1d..7436ae8 100644
--- a/caveat/.gitignore
+++ b/caveat/.gitignore
@@ -2,6 +2,6 @@ build
 decode_insn.h
 disasm_insn.h
 execute_insn.h
-ecall_nums.h
+ecall.h
 opcodes.h
 opcodes_attr.h
diff --git a/caveat/Makefile b/caveat/Makefile
index bb149a3..0a36d83 100644
--- a/caveat/Makefile
+++ b/caveat/Makefile
@@ -38,7 +38,7 @@ install:  all
 
 .PHONY:  clean
 clean:
-	rm -f decode_insn.h disasm_insn.h execute_insn.h ecall_nums.h opcodes.h opcodes_attr.h *.o *~ ./#*#
+	rm -f decode_insn.h disasm_insn.h execute_insn.h ecall.h opcodes.h opcodes_attr.h *.o *~ ./#*#
 	rm -rf build
 
 
@@ -56,7 +56,7 @@ $(aobj):  $(incf)
 $(cobj):  $(incf)
 
 $B/slow_sim.o $B/fast_sim.o:  sim_body.h execute_insn.h caveat_fp.h core.h
-$B/ecall.o:  core.h ecall_nums.h
+$B/ecall.o:  core.h ecall.h
 $B/insn.o:  decode_insn.h disasm_insn.h
 $B/trace.o:  fifo.h
 
@@ -82,7 +82,12 @@ $B/%.o : %.cc
 opcodes.h opcodes_attr.h decode_insn.h execute_insn.h disasm_insn.h constants.c:  crunch_isa.py Instructions.def
 	python3 crunch_isa.py
 
-ecall.h: ecall_nums.h opcodes.h insn.h core.h
-
-ecall_nums.h:  make_ecall_tbl.py
-	python3  make_ecall_tbl.py
+ecall.h: opcodes.h insn.h core.h
+	echo -n > $@
+	echo '#include <stdio.h>' >> $@
+	echo '#include <stdint.h>' >> $@
+	echo '#include <sys/time.h>' >> $@
+	echo '#include "opcodes.h"' >> $@
+	echo '#include "insn.h"' >> $@
+	echo '#include "core.h"' >> $@
+	python3 -m openpower.syscalls ecall riscv64 amd64 >> $@
diff --git a/caveat/ecall.h b/caveat/ecall.h
deleted file mode 100644
index a5aed4c..0000000
--- a/caveat/ecall.h
+++ /dev/null
@@ -1,44 +0,0 @@
-#pragma once
-
-#include <stdio.h>
-#include <stdint.h>
-#include <sys/time.h>
-
-struct ecall_entry {
-    long number;
-    char const *name;
-};
-
-#include "opcodes.h"
-#include "insn.h"
-#include "core.h"
-
-#include "ecall_nums.h"
-
-static inline struct ecall_entry const *
-ecall_entry(long id) {
-    return &rv_to_host[id];
-}
-
-static inline long
-ecall_fetch(struct core_t const *cpu, long arguments[6]) {
-    arguments[0] = cpu->reg[10].l;
-    arguments[1] = cpu->reg[11].l;
-    arguments[2] = cpu->reg[12].l;
-    arguments[3] = cpu->reg[13].l;
-    arguments[4] = cpu->reg[14].l;
-    arguments[5] = cpu->reg[15].l;
-
-    return cpu->reg[17].l;
-}
-
-static inline void
-ecall_store(long const arguments[6], struct core_t *cpu)
-{
-    cpu->reg[10].l = arguments[0];
-    cpu->reg[11].l = arguments[1];
-    cpu->reg[12].l = arguments[2];
-    cpu->reg[13].l = arguments[3];
-    cpu->reg[14].l = arguments[4];
-    cpu->reg[15].l = arguments[5];
-}
diff --git a/caveat/make_ecall_tbl.py b/caveat/make_ecall_tbl.py
deleted file mode 100644
index 59a78df..0000000
--- a/caveat/make_ecall_tbl.py
+++ /dev/null
@@ -1,62 +0,0 @@
-#
-#  Copyright (c) 2020 Peter Hsu.  All Rights Reserved.  See LICENCE file for details.
-#
-
-import re
-import os
-
-PKpattern = re.compile(r'#define\s+SYS_(\S+)\s+(\d+)')
-RVpattern = re.compile(r'#define\s+TARGET_NR_(\S+)\s+(\d+)')
-
-# Algorith is we make table of RISC-V system call names and record
-# their numbers, create a C file of names, include the host x86
-# 'asm/unistd_64.h' file to get the correct mapping.
-
-ecall = {}
-enames = {}
-highest = -1
-rv = open('../include/pk-syscall.h', 'r')
-for line in rv:
-    m = PKpattern.match(line)
-    if m:
-        name, num = m.groups()
-        num = int(num)
-        ecall[num] = name
-        enames[name] = num
-        highest = max(num, highest)
-rv.close()
-
-rv = open('../include/syscall64_nr.h', 'r')
-for line in rv:
-    m = RVpattern.match(line)
-    if m:
-        name, num = m.groups()
-        num = int(num)
-        if num in ecall and name != ecall[num]:
-            print('libc {:s} override pk {:s} ecall'.format(name, ecall[num]))
-        ecall[num] = name
-        enames[name] = num
-        highest = max(num, highest)
-
-en = open('ecall_nums.h', 'w')
-en.write("#pragma once\n")
-
-for name in sorted(enames.keys()):
-    en.write('#ifndef __NR_{:s}\n'.format(name))
-    en.write('#define __NR_{:s}  -2\n'.format(name))
-    en.write('#endif\n')
-
-en.write("""\n
-static struct ecall_entry const rv_to_host[] = {
-""")
-
-for n in range(0, highest+1):
-    if n in ecall:
-        name = ecall[n]
-        en.write('    /* {:5d} */ {{ __NR_{:s}, "{:s}" }},\n'.format(n, name, name))
-    else:
-        en.write('    /* {:5d} */ {{ -1, 0 }},\n'.format(n))
-    
-en.write('};\n\n')
-en.write('const int rv_syscall_entries = {:d};\n\n'.format(highest+1))
-en.close()