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Rewrite nbsd_nat_target::pid_to_exec_file to sysctl(3)

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procfs on NetBSD is optional and not recommended.

	* nbsd-nat.c: Include <sys/types.h>, <sys/ptrace.h> and
	<sys/sysctl.h>.
	* nbsd-nat.c (nbsd_nat_target::pid_to_exec_file): Rewrite.
This commit is contained in:
Kamil Rytarowski
2020-03-15 00:12:53 +01:00
parent 589902954d
commit a2ecbe9fb7
2 changed files with 16 additions and 12 deletions
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6
gdb/ChangeLog
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@ -1,3 +1,9 @@
2020-03-17 Kamil Rytarowski <n54@gmx.com>
* nbsd-nat.c: Include <sys/types.h>, <sys/ptrace.h> and
<sys/sysctl.h>.
* nbsd-nat.c (nbsd_nat_target::pid_to_exec_file): Rewrite.
2020-03-17 Tom de Vries <tdevries@suse.de> 2020-03-17 Tom de Vries <tdevries@suse.de>
PR gdb/23710 PR gdb/23710

20
gdb/nbsd-nat.c
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@ -21,23 +21,21 @@
#include "nbsd-nat.h" #include "nbsd-nat.h"
#include <sys/types.h>
#include <sys/ptrace.h>
#include <sys/sysctl.h>
/* Return the name of a file that can be opened to get the symbols for /* Return the name of a file that can be opened to get the symbols for
the child process identified by PID. */ the child process identified by PID. */
char * char *
nbsd_nat_target::pid_to_exec_file (int pid) nbsd_nat_target::pid_to_exec_file (int pid)
{ {
ssize_t len;
static char buf[PATH_MAX]; static char buf[PATH_MAX];
char name[PATH_MAX]; size_t buflen;
int mib[4] = {CTL_KERN, KERN_PROC_ARGS, pid, KERN_PROC_PATHNAME};
xsnprintf (name, PATH_MAX, "/proc/%d/exe", pid); buflen = sizeof (buf);
len = readlink (name, buf, PATH_MAX - 1); if (sysctl (mib, ARRAY_SIZE (mib), buf, &buflen, NULL, 0))
if (len != -1)
{
buf[len] = '\0';
return buf;
}
return NULL; return NULL;
return buf;
} }