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Fix gdb.base/attach-twice.c build on NetBSD 

Add a fallback definition of PTRACE_ATTACH that is an alias of
PT_ATTACH. Change the 4th argument of ptrace(2) to 0 as it is
compatible with void * (Linux) and int (NetBSD) arguments.

Include <sys/types.h> for <sys/ptrace.h>.

gdb/testsuite/ChangeLog:

	* gdb.base/attach-twice.c: Include "sys/types.h".
	(PTRACE_ATTACH): Add fallback definition.
	(main): Pass `0' to the 4th argument of `ptrace'.
This commit is contained in:
Kamil Rytarowski 2020-04-17 18:39:42 +02:00
parent 2bed205e44
commit 4ddfec930c
2 changed files with 14 additions and 1 deletions
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6
gdb/testsuite/ChangeLog
View File

@ -1,3 +1,9 @@
2020-04-17 Kamil Rytarowski <n54@gmx.com>
* gdb.base/attach-twice.c: Include "sys/types.h".
(PTRACE_ATTACH): Add fallback definition.
(main): Pass `0' to the 4th argument of `ptrace'.
2020-04-17 Kamil Rytarowski <n54@gmx.com>
* gdb.base/fork-running-state.c: Include "signal.h".

9
gdb/testsuite/gdb.base/attach-twice.c
View File

@ -18,9 +18,14 @@
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/ptrace.h>
#include <errno.h>
#ifndef PTRACE_ATTACH
#define PTRACE_ATTACH PT_ATTACH
#endif
int
main (void)
{
@ -33,7 +38,9 @@ main (void)
exit (1);
case 0:
errno = 0;
ptrace (PTRACE_ATTACH, getppid (), NULL, NULL);
/* The 4th argument to ptrace () is 0 on purpose, as it is compatible
between kernels that accept void* (like Linux) and int (NetBSD). */
ptrace (PTRACE_ATTACH, getppid (), NULL, 0);
if (errno != 0)
perror ("PTRACE_ATTACH");
break;