Rewrite nbsd_nat_target::pid_to_exec_file to sysctl(3)
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.
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@ -1,3 +1,9 @@
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2020-03-17 Kamil Rytarowski <n54@gmx.com>
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* nbsd-nat.c: Include <sys/types.h>, <sys/ptrace.h> and
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<sys/sysctl.h>.
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* nbsd-nat.c (nbsd_nat_target::pid_to_exec_file): Rewrite.
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2020-03-17 Tom de Vries <tdevries@suse.de>
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PR gdb/23710
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@ -21,23 +21,21 @@
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#include "nbsd-nat.h"
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#include <sys/types.h>
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#include <sys/ptrace.h>
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#include <sys/sysctl.h>
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/* Return the name of a file that can be opened to get the symbols for
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the child process identified by PID. */
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char *
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nbsd_nat_target::pid_to_exec_file (int pid)
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{
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ssize_t len;
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static char buf[PATH_MAX];
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char name[PATH_MAX];
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xsnprintf (name, PATH_MAX, "/proc/%d/exe", pid);
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len = readlink (name, buf, PATH_MAX - 1);
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if (len != -1)
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{
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buf[len] = '\0';
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return buf;
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}
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return NULL;
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size_t buflen;
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int mib[4] = {CTL_KERN, KERN_PROC_ARGS, pid, KERN_PROC_PATHNAME};
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buflen = sizeof (buf);
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if (sysctl (mib, ARRAY_SIZE (mib), buf, &buflen, NULL, 0))
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return NULL;
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return buf;
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}
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