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[src/trunk]: src/usr.bin/make make(1): use FStr for ApplyModifiersState.newVal
details: https://anonhg.NetBSD.org/src/rev/7159a0549d5c
branches: trunk
changeset: 958044:7159a0549d5c
user: rillig <rillig%NetBSD.org@localhost>
date: Sun Dec 20 23:27:37 2020 +0000
description:
make(1): use FStr for ApplyModifiersState.newVal
Memory management is still complicated in this area. To clean this up,
the previous value of the expression needs to be converted to an MFStr
first, and later to an FStr.
diffstat:
usr.bin/make/var.c | 116 +++++++++++++++++++++++++++-------------------------
1 files changed, 61 insertions(+), 55 deletions(-)
diffs (truncated from 404 to 300 lines):
diff -r b2ce5f3cc282 -r 7159a0549d5c usr.bin/make/var.c
--- a/usr.bin/make/var.c Sun Dec 20 22:57:40 2020 +0000
+++ b/usr.bin/make/var.c Sun Dec 20 23:27:37 2020 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: var.c,v 1.755 2020/12/20 19:51:37 rillig Exp $ */
+/* $NetBSD: var.c,v 1.756 2020/12/20 23:27:37 rillig Exp $ */
/*
* Copyright (c) 1988, 1989, 1990, 1993
@@ -131,7 +131,7 @@
#include "metachar.h"
/* "@(#)var.c 8.3 (Berkeley) 3/19/94" */
-MAKE_RCSID("$NetBSD: var.c,v 1.755 2020/12/20 19:51:37 rillig Exp $");
+MAKE_RCSID("$NetBSD: var.c,v 1.756 2020/12/20 23:27:37 rillig Exp $");
typedef enum VarFlags {
VAR_NONE = 0,
@@ -1930,7 +1930,7 @@
* The new value of the expression, after applying the modifier,
* never NULL.
*/
- char *newVal;
+ MFStr newVal;
/* Word separator in expansions (see the :ts modifier). */
char sep;
/*
@@ -2225,8 +2225,8 @@
args.eflags = st->eflags & ~(unsigned)VARE_KEEP_DOLLAR;
prev_sep = st->sep;
st->sep = ' '; /* XXX: should be st->sep for consistency */
- st->newVal = ModifyWords(val, ModifyWord_Loop, &args,
- st->oneBigWord, st->sep);
+ st->newVal = MFStr_InitOwn(
+ ModifyWords(val, ModifyWord_Loop, &args, st->oneBigWord, st->sep));
st->sep = prev_sep;
/* XXX: Consider restoring the previous variable instead of deleting. */
Var_Delete(args.tvar, st->ctxt);
@@ -2286,9 +2286,9 @@
ApplyModifiersState_Define(st);
if (eflags & VARE_WANTRES) {
- st->newVal = Buf_Destroy(&buf, FALSE);
+ st->newVal = MFStr_InitOwn(Buf_Destroy(&buf, FALSE));
} else {
- st->newVal = val;
+ st->newVal = MFStr_InitRefer(val);
Buf_Destroy(&buf, TRUE);
}
return AMR_OK;
@@ -2299,7 +2299,7 @@
ApplyModifier_Literal(const char **pp, ApplyModifiersState *st)
{
ApplyModifiersState_Define(st);
- st->newVal = bmake_strdup(st->var->name.str);
+ st->newVal = MFStr_InitOwn(bmake_strdup(st->var->name.str));
(*pp)++;
return AMR_OK;
}
@@ -2345,7 +2345,7 @@
utc = 0;
*pp = mod + 6;
}
- st->newVal = VarStrftime(val, TRUE, utc);
+ st->newVal = MFStr_InitOwn(VarStrftime(val, TRUE, utc));
return AMR_OK;
}
@@ -2372,7 +2372,7 @@
utc = 0;
*pp = mod + 9;
}
- st->newVal = VarStrftime(val, FALSE, utc);
+ st->newVal = MFStr_InitOwn(VarStrftime(val, FALSE, utc));
return AMR_OK;
}
@@ -2383,7 +2383,7 @@
if (!ModMatch(*pp, "hash", st->endc))
return AMR_UNKNOWN;
- st->newVal = VarHash(val);
+ st->newVal = MFStr_InitOwn(VarHash(val));
*pp += 4;
return AMR_OK;
}
@@ -2408,7 +2408,7 @@
}
if (path == NULL)
path = bmake_strdup(st->var->name.str);
- st->newVal = path;
+ st->newVal = MFStr_InitOwn(path);
(*pp)++;
return AMR_OK;
@@ -2430,9 +2430,9 @@
errfmt = NULL;
if (st->eflags & VARE_WANTRES)
- st->newVal = Cmd_Exec(cmd, &errfmt);
+ st->newVal = MFStr_InitOwn(Cmd_Exec(cmd, &errfmt));
else
- st->newVal = bmake_strdup("");
+ st->newVal = MFStr_InitOwn(bmake_strdup(""));
if (errfmt != NULL)
Error(errfmt, cmd); /* XXX: why still return AMR_OK? */
free(cmd);
@@ -2483,7 +2483,7 @@
Buf_AddInt(&buf, 1 + (int)i);
}
- st->newVal = Buf_Destroy(&buf, FALSE);
+ st->newVal = MFStr_InitOwn(Buf_Destroy(&buf, FALSE));
return AMR_OK;
}
@@ -2560,8 +2560,8 @@
st->var->name.str, val, pattern);
callback = mod[0] == 'M' ? ModifyWord_Match : ModifyWord_NoMatch;
- st->newVal = ModifyWords(val, callback, pattern,
- st->oneBigWord, st->sep);
+ st->newVal = MFStr_InitOwn(ModifyWords(val, callback, pattern,
+ st->oneBigWord, st->sep));
free(pattern);
return AMR_OK;
}
@@ -2624,8 +2624,8 @@
break;
}
- st->newVal = ModifyWords(val, ModifyWord_Subst, &args,
- oneBigWord, st->sep);
+ st->newVal = MFStr_InitOwn(ModifyWords(val, ModifyWord_Subst, &args,
+ oneBigWord, st->sep));
free(lhs);
free(rhs);
@@ -2694,8 +2694,9 @@
args.nsub = args.re.re_nsub + 1;
if (args.nsub > 10)
args.nsub = 10;
- st->newVal = ModifyWords(val, ModifyWord_SubstRegex, &args,
- oneBigWord, st->sep);
+ st->newVal = MFStr_InitOwn(
+ ModifyWords(val, ModifyWord_SubstRegex, &args,
+ oneBigWord, st->sep));
regfree(&args.re);
free(args.replace);
return AMR_OK;
@@ -2708,7 +2709,7 @@
ApplyModifier_Quote(const char **pp, const char *val, ApplyModifiersState *st)
{
if ((*pp)[1] == st->endc || (*pp)[1] == ':') {
- st->newVal = VarQuote(val, **pp == 'q');
+ st->newVal = MFStr_InitOwn(VarQuote(val, **pp == 'q'));
(*pp)++;
return AMR_OK;
} else
@@ -2788,8 +2789,8 @@
}
ok:
- st->newVal = ModifyWords(val, ModifyWord_Copy, NULL,
- st->oneBigWord, st->sep);
+ st->newVal = MFStr_InitOwn(
+ ModifyWords(val, ModifyWord_Copy, NULL, st->oneBigWord, st->sep));
return AMR_OK;
}
@@ -2843,27 +2844,28 @@
/* Check for two-character options: ":tu", ":tl" */
if (mod[1] == 'A') { /* absolute path */
- st->newVal = ModifyWords(val, ModifyWord_Realpath, NULL,
- st->oneBigWord, st->sep);
+ st->newVal = MFStr_InitOwn(
+ ModifyWords(val, ModifyWord_Realpath, NULL,
+ st->oneBigWord, st->sep));
*pp = mod + 2;
return AMR_OK;
}
if (mod[1] == 'u') { /* :tu */
- st->newVal = str_toupper(val);
+ st->newVal = MFStr_InitOwn(str_toupper(val));
*pp = mod + 2;
return AMR_OK;
}
if (mod[1] == 'l') { /* :tl */
- st->newVal = str_tolower(val);
+ st->newVal = MFStr_InitOwn(str_tolower(val));
*pp = mod + 2;
return AMR_OK;
}
if (mod[1] == 'W' || mod[1] == 'w') { /* :tW, :tw */
st->oneBigWord = mod[1] == 'W';
- st->newVal = val;
+ st->newVal = MFStr_InitRefer(val);
*pp = mod + 2;
return AMR_OK;
}
@@ -2897,7 +2899,7 @@
if (estr[0] == '#' && estr[1] == '\0') { /* Found ":[#]" */
if (st->oneBigWord) {
- st->newVal = bmake_strdup("1");
+ st->newVal = MFStr_InitOwn(bmake_strdup("1"));
} else {
Buffer buf;
@@ -2908,7 +2910,7 @@
/* 3 digits + '\0' is usually enough */
Buf_InitSize(&buf, 4);
Buf_AddInt(&buf, (int)ac);
- st->newVal = Buf_Destroy(&buf, FALSE);
+ st->newVal = MFStr_InitOwn(Buf_Destroy(&buf, FALSE));
}
goto ok;
}
@@ -2916,14 +2918,14 @@
if (estr[0] == '*' && estr[1] == '\0') {
/* Found ":[*]" */
st->oneBigWord = TRUE;
- st->newVal = val;
+ st->newVal = MFStr_InitRefer(val);
goto ok;
}
if (estr[0] == '@' && estr[1] == '\0') {
/* Found ":[@]" */
st->oneBigWord = FALSE;
- st->newVal = val;
+ st->newVal = MFStr_InitRefer(val);
goto ok;
}
@@ -2952,7 +2954,7 @@
if (first == 0 && last == 0) {
/* ":[0]" or perhaps ":[0..0]" */
st->oneBigWord = TRUE;
- st->newVal = val;
+ st->newVal = MFStr_InitRefer(val);
goto ok;
}
@@ -2961,7 +2963,8 @@
goto bad_modifier;
/* Normal case: select the words described by first and last. */
- st->newVal = VarSelectWords(st->sep, st->oneBigWord, val, first, last);
+ st->newVal = MFStr_InitOwn(
+ VarSelectWords(st->sep, st->oneBigWord, val, first, last));
ok:
free(estr);
@@ -3024,7 +3027,7 @@
return AMR_BAD;
}
- st->newVal = Words_JoinFree(words);
+ st->newVal = MFStr_InitOwn(Words_JoinFree(words));
return AMR_OK;
}
@@ -3067,10 +3070,10 @@
}
if (value) {
- st->newVal = then_expr;
+ st->newVal = MFStr_InitOwn(then_expr);
free(else_expr);
} else {
- st->newVal = else_expr;
+ st->newVal = MFStr_InitOwn(else_expr);
free(then_expr);
}
ApplyModifiersState_Define(st);
@@ -3174,7 +3177,7 @@
}
}
free(val);
- st->newVal = bmake_strdup("");
+ st->newVal = MFStr_InitOwn(bmake_strdup(""));
return AMR_OK;
}
@@ -3197,7 +3200,7 @@
Var_Set("_", val, st->ctxt);
*pp = mod + 1;
}
- st->newVal = val;
+ st->newVal = MFStr_InitRefer(val);
return AMR_OK;
}
@@ -3211,8 +3214,8 @@
if (delim != st->endc && delim != ':')
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