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[src/trunk]: src/usr.bin/xlint/lint1 lint: mention the name of an implicitly ...



details:   https://anonhg.NetBSD.org/src/rev/9f197786c8e5
branches:  trunk
changeset: 984287:9f197786c8e5
user:      rillig <rillig%NetBSD.org@localhost>
date:      Wed Jun 30 14:23:50 2021 +0000

description:
lint: mention the name of an implicitly declared function

In the regular NetBSD builds, this happened in swab.c:65.  That line
contains __predict_false, which may or may not be a macro.  In other
cases, there may be more than one function call in a single line.

diffstat:

 tests/usr.bin/xlint/lint1/msg_155.c   |   5 +++--
 tests/usr.bin/xlint/lint1/msg_155.exp |  14 +++++++-------
 tests/usr.bin/xlint/lint1/msg_215.c   |   6 +++---
 tests/usr.bin/xlint/lint1/msg_215.exp |   2 +-
 usr.bin/xlint/lint1/err.c             |   6 +++---
 usr.bin/xlint/lint1/tree.c            |  12 ++++++------
 6 files changed, 23 insertions(+), 22 deletions(-)

diffs (132 lines):

diff -r dcf1d365432e -r 9f197786c8e5 tests/usr.bin/xlint/lint1/msg_155.c
--- a/tests/usr.bin/xlint/lint1/msg_155.c       Wed Jun 30 14:15:39 2021 +0000
+++ b/tests/usr.bin/xlint/lint1/msg_155.c       Wed Jun 30 14:23:50 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: msg_155.c,v 1.8 2021/06/30 12:26:35 rillig Exp $       */
+/*     $NetBSD: msg_155.c,v 1.9 2021/06/30 14:23:50 rillig Exp $       */
 # 3 "msg_155.c"
 
 // Test for message: passing '%s' to incompatible '%s', arg #%d [155]
@@ -38,7 +38,8 @@
        c99_6_7_6_example_e(arg);
 
        /* TODO: C99 says 'function with no parameter specification returning a pointer to int' */
-       c99_6_7_6_example_f(arg);       /* expect: function implicitly declared */
+       /* expect+1: function 'c99_6_7_6_example_f' implicitly declared */
+       c99_6_7_6_example_f(arg);
 
        /* expect+1: 'pointer to function(void) returning int' */
        c99_6_7_6_example_g(arg);
diff -r dcf1d365432e -r 9f197786c8e5 tests/usr.bin/xlint/lint1/msg_155.exp
--- a/tests/usr.bin/xlint/lint1/msg_155.exp     Wed Jun 30 14:15:39 2021 +0000
+++ b/tests/usr.bin/xlint/lint1/msg_155.exp     Wed Jun 30 14:23:50 2021 +0000
@@ -3,10 +3,10 @@
 msg_155.c(32): warning: passing 'struct incompatible' to incompatible 'pointer to pointer to int', arg #1 [155]
 msg_155.c(35): warning: passing 'struct incompatible' to incompatible 'pointer to array[3] of int', arg #1 [155]
 msg_155.c(38): warning: passing 'struct incompatible' to incompatible 'pointer to array[unknown_size] of int', arg #1 [155]
-msg_155.c(41): error: function implicitly declared to return int [215]
-msg_155.c(44): warning: passing 'struct incompatible' to incompatible 'pointer to function(void) returning int', arg #1 [155]
-msg_155.c(47): warning: passing 'struct incompatible' to incompatible 'pointer to const pointer to function(unsigned int, ...) returning int', arg #1 [155]
-msg_155.c(68): warning: passing 'enum Day' to incompatible 'struct incompatible', arg #1 [155]
-msg_155.c(71): warning: passing 'enum Day' to incompatible 'struct incompatible', arg #1 [155]
-msg_155.c(74): warning: passing 'int' to incompatible 'struct incompatible', arg #1 [155]
-msg_155.c(77): warning: passing 'int' to incompatible 'struct incompatible', arg #1 [155]
+msg_155.c(42): error: function 'c99_6_7_6_example_f' implicitly declared to return int [215]
+msg_155.c(45): warning: passing 'struct incompatible' to incompatible 'pointer to function(void) returning int', arg #1 [155]
+msg_155.c(48): warning: passing 'struct incompatible' to incompatible 'pointer to const pointer to function(unsigned int, ...) returning int', arg #1 [155]
+msg_155.c(69): warning: passing 'enum Day' to incompatible 'struct incompatible', arg #1 [155]
+msg_155.c(72): warning: passing 'enum Day' to incompatible 'struct incompatible', arg #1 [155]
+msg_155.c(75): warning: passing 'int' to incompatible 'struct incompatible', arg #1 [155]
+msg_155.c(78): warning: passing 'int' to incompatible 'struct incompatible', arg #1 [155]
diff -r dcf1d365432e -r 9f197786c8e5 tests/usr.bin/xlint/lint1/msg_215.c
--- a/tests/usr.bin/xlint/lint1/msg_215.c       Wed Jun 30 14:15:39 2021 +0000
+++ b/tests/usr.bin/xlint/lint1/msg_215.c       Wed Jun 30 14:23:50 2021 +0000
@@ -1,7 +1,7 @@
-/*     $NetBSD: msg_215.c,v 1.6 2021/06/30 14:15:39 rillig Exp $       */
+/*     $NetBSD: msg_215.c,v 1.7 2021/06/30 14:23:50 rillig Exp $       */
 # 3 "msg_215.c"
 
-// Test for message: function implicitly declared to return int [215]
+// Test for message: function '%s' implicitly declared to return int [215]
 
 /*
  * In traditional C and C90, it was possible to implicitly declare a function
@@ -17,7 +17,7 @@
 void
 test(struct str str)
 {
-       /* expect+1: error: function implicitly declared to return int [215] */
+       /* expect+1: error: function 'name' implicitly declared to return int [215] */
        name();
 
        /* expect+2: error: 'parenthesized' undefined [99] */
diff -r dcf1d365432e -r 9f197786c8e5 tests/usr.bin/xlint/lint1/msg_215.exp
--- a/tests/usr.bin/xlint/lint1/msg_215.exp     Wed Jun 30 14:15:39 2021 +0000
+++ b/tests/usr.bin/xlint/lint1/msg_215.exp     Wed Jun 30 14:23:50 2021 +0000
@@ -1,4 +1,4 @@
-msg_215.c(21): error: function implicitly declared to return int [215]
+msg_215.c(21): error: function 'name' implicitly declared to return int [215]
 msg_215.c(25): error: 'parenthesized' undefined [99]
 msg_215.c(25): error: illegal function (type int) [149]
 msg_215.c(29): error: type 'struct str' does not have member 'member' [101]
diff -r dcf1d365432e -r 9f197786c8e5 usr.bin/xlint/lint1/err.c
--- a/usr.bin/xlint/lint1/err.c Wed Jun 30 14:15:39 2021 +0000
+++ b/usr.bin/xlint/lint1/err.c Wed Jun 30 14:23:50 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: err.c,v 1.121 2021/06/28 10:23:49 rillig Exp $ */
+/*     $NetBSD: err.c,v 1.122 2021/06/30 14:23:50 rillig Exp $ */
 
 /*
  * Copyright (c) 1994, 1995 Jochen Pohl
@@ -37,7 +37,7 @@
 
 #include <sys/cdefs.h>
 #if defined(__RCSID) && !defined(lint)
-__RCSID("$NetBSD: err.c,v 1.121 2021/06/28 10:23:49 rillig Exp $");
+__RCSID("$NetBSD: err.c,v 1.122 2021/06/30 14:23:50 rillig Exp $");
 #endif
 
 #include <sys/types.h>
@@ -269,7 +269,7 @@
        "cannot return incomplete type",                              /* 212 */
        "void function %s cannot return value",                       /* 213 */
        "function %s expects to return value",                        /* 214 */
-       "function implicitly declared to return int",                 /* 215 */
+       "function '%s' implicitly declared to return int",            /* 215 */
        "function %s has return (e); and return;",                    /* 216 */
        "function %s falls off bottom without returning value",       /* 217 */
        "ANSI C treats constant as unsigned, op %s",                  /* 218 */
diff -r dcf1d365432e -r 9f197786c8e5 usr.bin/xlint/lint1/tree.c
--- a/usr.bin/xlint/lint1/tree.c        Wed Jun 30 14:15:39 2021 +0000
+++ b/usr.bin/xlint/lint1/tree.c        Wed Jun 30 14:23:50 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: tree.c,v 1.300 2021/06/30 14:11:08 rillig Exp $        */
+/*     $NetBSD: tree.c,v 1.301 2021/06/30 14:23:50 rillig Exp $        */
 
 /*
  * Copyright (c) 1994, 1995 Jochen Pohl
@@ -37,7 +37,7 @@
 
 #include <sys/cdefs.h>
 #if defined(__RCSID) && !defined(lint)
-__RCSID("$NetBSD: tree.c,v 1.300 2021/06/30 14:11:08 rillig Exp $");
+__RCSID("$NetBSD: tree.c,v 1.301 2021/06/30 14:23:50 rillig Exp $");
 #endif
 
 #include <float.h>
@@ -246,11 +246,11 @@
                sym->s_def = DECL;
                if (follow_token == T_LPAREN) {
                        if (Sflag) {
-                               /* function implicitly declared to ... */
-                               error(215);
+                               /* function '%s' implicitly declared to ... */
+                               error(215, sym->s_name);
                        } else if (sflag) {
-                               /* function implicitly declared to ... */
-                               warning(215);
+                               /* function '%s' implicitly declared to ... */
+                               warning(215, sym->s_name);
                        }
                        /*
                         * XXX if tflag is set the symbol should be



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