[Bug 257450] MALLOC_DEFINE macro error in Freebsd13 OS

From: <bugzilla-noreply_at_freebsd.org>
Date: Tue, 27 Jul 2021 13:12:29 +0000
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=257450

            Bug ID: 257450
           Summary: MALLOC_DEFINE macro error in Freebsd13 OS
           Product: Base System
           Version: 13.0-STABLE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs_at_FreeBSD.org
          Reporter: meetshamsher_at_gmail.com

# cat test.c 
#include <sys/types.h>
#include <sys/module.h>
#include <sys/systm.h>  
#include <sys/param.h> 
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/kthread.h>
#include <sys/unistd.h>
#include <stdlib.h> 

MALLOC_DEFINE(M_NODE, "NODE1", "test Node");
int main() {
    int *ptr;
    ptr = (int*)malloc(sizeof(int), M_NODE ,M_WAITOK)
    printf("ptr=%p\n",ptr);
    return 0;
}


# cc test.c 
test.c:11:23: error: expected identifier
MALLOC_DEFINE(M_NODE, "NODE1", "test Node");
                      ^
test.c:11:1: warning: type specifier missing, defaults to 'int'
[-Wimplicit-int]
MALLOC_DEFINE(M_NODE, "NODE1", "test Node");
^
test.c:14:37: error: use of undeclared identifier 'M_NODE'
    ptr = (int*)malloc(sizeof(int), M_NODE ,M_WAITOK)
                                    ^
1 warning and 2 errors generated.

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Received on Tue Jul 27 2021 - 13:12:29 UTC

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