Update ab.

.github/workflows/ccpp.yml

@@ -52,7 +52,7 @@ jobs:
     - uses: actions/checkout@v3
     - name: build
       run: |
-        make LDFLAGS="-s -static" ack-setup.exe
+        make LDFLAGS="-s -static" ack-setup.exe AB_SANDBOX=no
     - name: upload setup
       uses: actions/upload-artifact@v4
       with:

.github/workflows/release.yml

@@ -38,7 +38,7 @@ jobs:
 
     - name: build
       run: |
-        make LDFLAGS="-s -static" ack-setup.exe
+        make LDFLAGS="-s -static" ack-setup.exe AB_SANDBOX=no
 
     - name: date
       run: |

build/ab.mk

@@ -84,7 +84,10 @@ build-file-timestamps = $(shell ls -l $(build-files) | md5sum)
 # Wipe the build file (forcing a regeneration) if the make environment is different.
 # (Conveniently, this includes the pkg-config hash calculated above.)
 
-ignored-variables = MAKE_RESTARTS .VARIABLES MAKECMDGOALS MAKEFLAGS MFLAGS
+ignored-variables = MAKE_RESTARTS .VARIABLES MAKECMDGOALS MAKEFLAGS MFLAGS PAGER _ \
+	DESKTOP_STARTUP_ID XAUTHORITY ICEAUTHORITY SSH_AUTH_SOCK SESSION_MANAGER \
+	INVOCATION_ID SYSTEMD_EXEC_PID MANAGER_PID SSH_AGENT_PID JOURNAL_STREAM \
+	GPG_TTY WINDOWID MANAGERPID MAKE_TERMOUT MAKE_TERMERR OLDPWD
 $(shell mkdir -p $(OBJ))
 $(file >$(OBJ)/newvars.txt,$(foreach v,$(filter-out $(ignored-variables),$(.VARIABLES)),$(v)=$($(v))$(newline)))
 $(shell touch $(OBJ)/vars.txt)
@@ -104,13 +107,17 @@ clean::
 	@echo CLEAN
 	$(hide) rm -rf $(OBJ)
 
+compile_commands.json: $(OBJ)/build.ninja
+	+$(hide) $(NINJA) -f $(OBJ)/build.ninja -t compdb > $@
+
 export PYTHONHASHSEED = 1
 $(OBJ)/build.ninja $(OBJ)/build.targets &:
 	@echo "AB"
 	$(hide) $(PYTHON) -X pycache_prefix=$(OBJ)/__pycache__ build/ab.py \
 		-o $(OBJ) build.py \
 		-v $(OBJ)/vars.txt \
 		|| (rm -f $@ && false)
+	$(hide) cp $(OBJ)/compile_commands.json compile_commands.json
 
 include $(OBJ)/build.targets
 .PHONY: $(ninja-targets)

build/ab.py

@@ -12,6 +12,7 @@
 import importlib
 import importlib.util
 import inspect
+import json
 import os
 import re
 import string
@@ -27,6 +28,7 @@
 materialisingStack = []
 defaultGlobals = {}
 outputTargets = set()
+commandsDb = []
 
 RE_FORMAT_SPEC = re.compile(
     r"(?:(?P<fill>[\s\S])?(?P<align>[<>=^]))?"
@@ -540,6 +542,15 @@ def shell(*args):
     shellFp.write(s)
 
 
+def add_commanddb_entry(commands, file):
+    global commandsDb
+    commandsDb += [{
+        "directory": os.getcwd(),
+                "command": (" && ".join(commands)),
+                "file": file
+    }
+        ]
+
 def emit_rule(self, ins, outs, cmds=[], label=None):
     name = self.name
     fins = [self.templateexpand(f) for f in set(filenamesof(ins))]
@@ -558,19 +569,26 @@ def emit_rule(self, ins, outs, cmds=[], label=None):
         os.makedirs(self.dir, exist_ok=True)
         rule = []
 
-        sandbox = join(self.dir, "sandbox")
-        emit(f"rm -rf {sandbox}", into=rule)
-        emit(
-            f"{G.PYTHON} build/_sandbox.py --link -s", sandbox, *fins, into=rule
-        )
-        for c in cmds:
-            emit(f"(cd {sandbox} &&", c, ")", into=rule)
-        emit(
-            f"{G.PYTHON} build/_sandbox.py --export -s",
-            sandbox,
-            *fouts,
-            into=rule,
-        )
+        if G.AB_SANDBOX == "yes":
+            sandbox = join(self.dir, "sandbox")
+            emit(f"rm -rf {sandbox}", into=rule)
+            emit(
+                f"{G.PYTHON} build/_sandbox.py --link -s",
+                sandbox,
+                *fins,
+                into=rule,
+            )
+            for c in cmds:
+                emit(f"(cd {sandbox} &&", c, ")", into=rule)
+            emit(
+                f"{G.PYTHON} build/_sandbox.py --export -s",
+                sandbox,
+                *fouts,
+                into=rule,
+            )
+        else:
+            for c in cmds:
+                emit(c, into=rule)
 
         ruletext = "".join(rule)
         if len(ruletext) > 7000:
@@ -581,7 +599,7 @@ def emit_rule(self, ins, outs, cmds=[], label=None):
                 fp.write("set -e\n")
                 fp.write(ruletext)
 
-            emit("build", *fouts, ":rule", *fins, rulef)
+            emit("build", *fouts, ":rule", *fins)
             emit(" command=sh", rulef)
         else:
             emit("build", *fouts, ":rule", *fins)
@@ -592,7 +610,6 @@ def emit_rule(self, ins, outs, cmds=[], label=None):
         if label:
             emit(" description=", label)
         emit("build", name, ":phony", *fouts)
-
     else:
         assert len(cmds) == 0, "rules with no outputs cannot have commands"
         emit("build", name, ":phony", *fins)
@@ -608,6 +625,7 @@ def simplerule(
     outs: Targets = [],
     deps: Targets = [],
     commands=[],
+    add_to_commanddb=False,
     label="RULE",
 ):
     self.ins = ins
@@ -623,8 +641,22 @@ def simplerule(
 
         cs = [("mkdir -p %s" % dir) for dir in dirs]
 
+    coreCommands = []
     for c in commands:
-        cs += [self.templateexpand(c)]
+        coreCommands += [self.templateexpand(c)]
+    cs += coreCommands
+
+    if add_to_commanddb:
+        infiles = filenamesof(ins)
+        if len(infiles) > 0:
+            global commandsDb
+            commandsDb += [
+                {
+                    "directory": os.getcwd(),
+                    "command": (" && ".join(coreCommands)),
+                    "file": infiles[0],
+                }
+            ]
 
     emit_rule(
         self=self,
@@ -696,8 +728,9 @@ def main():
         if "=" in line:
             name, value = line.split("=", 1)
             G.setdefault(name.strip(), value.strip())
+    G.setdefault("AB_SANDBOX", "yes")
 
-    global ninjaFp, shellFp, outputdir
+    global ninjaFp, shellFp, jsonFp, outputdir
     outputdir = args.outputdir
     G.setdefault("OBJ", outputdir)
     ninjaFp = open(outputdir + "/build.ninja", "wt")
@@ -721,5 +754,8 @@ def main():
         fp.write("ninja-targets =")
         fp.write(substituteGlobalVariables(" ".join(outputTargets)))
 
+    with open(outputdir + "/compile_commands.json", "wt") as fp:
+        json.dump(commandsDb, fp)
+
 
 main()

build/c.py

@@ -6,7 +6,7 @@
     filenamesof,
     flatten,
     simplerule,
-    emit,
+    add_commanddb_entry,
     G,
 )
 from build.utils import stripext, collectattrs
@@ -116,6 +116,7 @@ def cfileimpl(self, name, srcs, deps, suffix, commands, label, toolchain, cflags
         outs=[outleaf],
         label=label,
         commands=commands,
+        add_to_commanddb=True,
         args={"cflags": cflags},
     )
 

util/ncgg/build.py

@@ -39,9 +39,7 @@ def ncgg(self, name, srcs: Targets = [], deps: Targets = [], cflags=[]):
         ins=["util/ncgg", cpptable],
         outs=["=tables.c", "=tables.h"],
         commands=[
-            "$[ins]",
-            "mv tables.H $[dir]/tables.h",
-            "mv tables.c $[dir]/tables.c",
+            "$[ins[0]] -o $[dir] $[ins[1:]]"
         ],
         label="NCGG",
     )

util/ncgg/extern.h

@@ -2,7 +2,6 @@
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
  */
-/* $Id$ */
 
 extern int wordsize;
 extern int pointersize;
@@ -31,7 +30,7 @@ extern int allsetno;
 extern int inproc;
 extern int callproc;
 extern int procarg[];
-extern int fc1,fc2,fc3,fc4;
+extern int fc1, fc2, fc3, fc4;
 extern int maxmembers;
 extern int regclass;
 extern int maxtokensize;
@@ -48,7 +47,7 @@ extern void initemhash(void);
 /* error.c */
 extern void fatal(const char* s, ...);
 extern void error(const char* s, ...);
-extern int tabovf(char *string);
+extern int tabovf(char* string);
 
 /* output.c */
 extern void errorexit(void);
@@ -57,4 +56,11 @@ extern void finishio(void);
 extern void statistics(void);
 
 /* strlookup.c */
-extern int strlookup(char *str);
+extern int strlookup(char* str);
+
+/* Global parameters */
+extern int nerrors;
+extern int code_in_c;
+extern int tabledebug;
+extern int verbose;
+extern const char* outputdir;

util/ncgg/main.c

@@ -2,27 +2,18 @@
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
  */
-#ifndef NORCSID
-static char rcsid[] = "$Id$";
-#endif
 
 #include <stdlib.h>
 #include <stdio.h>
 #include "param.h"
 #include "hall.h"
 #include "expr.h"
 #include "extern.h"
-#include "lookup.h"
 
-char *filename;
+char* filename;
 
-int main(int argc, char **argv)
+int main(int argc, char** argv)
 {
-	extern int nerrors;
-	extern int code_in_c;
-	extern int tabledebug;
-	extern int verbose;
-
 	while (argc > 1 && argv[1][0] == '-')
 	{
 		switch (argv[1][1])
@@ -36,6 +27,11 @@ int main(int argc, char **argv)
 			case 'v':
 				verbose++;
 				break;
+			case 'o':
+				outputdir = argv[2];
+				argv++;
+				argc--;
+				break;
 			default:
 				error("Unknown flag -%c", argv[1][1]);
 		}

util/ncgg/ncgg.6

@@ -5,7 +5,7 @@
 cgg \- Code table translating utility
 .SH SYNOPSIS
 .B ~em/lib.bin/cgg
-[-c] [-d] [-v] table
+[-c] [-d] [-v] [-o outputdir] table
 .SH DESCRIPTION
 cgg translates a machine description table into the internal
 structures needed by em_cg.
@@ -25,8 +25,10 @@ bittable described under the -u option of em_ncg(6).
 Give statistics about table usage at end of program.
 Normally only the tables that have been used more than 75%
 are reported.
+.IP -o outputdir
+Write the output files to the specified directory.
 .SH FILES
-tables.H, tables.c
+tables.h, tables.c
 .br
 code	If the -c flag was given
 .br

util/ncgg/output.c

@@ -2,27 +2,14 @@
  * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
  * See the copyright notice in the ACK home directory, in the file "Copyright".
  */
-/* #define CODEDEBUG 	*//* print readable code */
-#ifdef CODEDEBUG
-int code_in_c=0; /* put readable code in "code" */
-int tabledebug=1; /* generate code for table debugging */
-#else
-int code_in_c = 1; /* put code in "tables.c" */
-int tabledebug = 0; /* do not generate code for table debugging */
-#endif
-int verbose = 0; /* print all statistics */
-int use_tes; /* use top element size information */
-char *c_file = "tables.c";
-char *h_file = "tables.H";
-char *cd_file = "code";
-
-#ifndef NORCSID
-static char rcsid[] = "$Id$";
-#endif
+/* #define CODEDEBUG 	*/ /* print readable code */
 
+#include <errno.h>
+#include <stdlib.h>
 #include <assert.h>
 #include <stdio.h>
 #include <ctype.h>
+#include <unistd.h>
 #include "varinfo.h"
 #include "param.h"
 #include "reg.h"
@@ -36,7 +23,21 @@ static char rcsid[] = "$Id$";
 #include "pseudo.h"
 #include "regvar.h"
 #include "extern.h"
+#include "subr.h"
 
+#ifdef CODEDEBUG
+int code_in_c=0; /* put readable code in "code" */
+int tabledebug=1; /* generate code for table debugging */
+#else
+int code_in_c = 1; /* put code in "tables.c" */
+int tabledebug = 0; /* do not generate code for table debugging */
+#endif
+int verbose = 0; /* print all statistics */
+int use_tes; /* use top element size information */
+char *c_file = "tables.c";
+char *h_file = "tables.h";
+char *cd_file = "code";
+const char* outputdir = ".";
 #define BMASK 0xFF
 #define BSHIFT 8
 
@@ -105,6 +106,12 @@ void unlfile(FILE *f, char *s)
 
 void initio(void)
 {
+	char* oldcwd = mygetcwd();
+
+	errno = 0;
+	chdir(outputdir);
+	if (errno)
+		perror("output directory inaccessible");
 
 	opnfile(&ctable, c_file);
 	opnfile(&htable, h_file);
@@ -114,7 +121,10 @@ void initio(void)
 		opnfile(&code, cd_file);
 	patbyte(0);
 	if (tabledebug)
-		lineset = (short *) myalloc(SZOFSET(MAXSOURCELINES) * sizeof(short));
+		lineset = (short*)myalloc(SZOFSET(MAXSOURCELINES) * sizeof(short));
+
+	chdir(oldcwd);
+	free(oldcwd);
 }
 
 void finishcode(void)