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--- tools/gn/src/util/exe_path.cc.orig 2022-02-07 13:39:41 UTC
+++ tools/gn/src/util/exe_path.cc
@@ -15,7 +15,7 @@
#include <windows.h>
#include "base/win/win_util.h"
-#elif defined(OS_FREEBSD) || defined(OS_NETBSD)
+#elif defined(OS_FREEBSD) || defined(OS_NETBSD) || defined(OS_OPENBSD)
#include <limits.h>
#include <sys/sysctl.h>
#include <sys/types.h>
@@ -26,6 +26,10 @@
#include <stdlib.h>
#endif
+#if defined(OS_OPENBSD)
+#include <kvm.h>
+#endif
+
#if defined(OS_MACOSX)
base::FilePath GetExePath() {
@@ -102,6 +106,67 @@ base::FilePath GetExePath() {
return base::FilePath();
}
return base::FilePath(raw);
+}
+
+#elif defined(OS_OPENBSD)
+
+base::FilePath GetExePath() {
+ struct kinfo_file *files;
+ kvm_t *kd = NULL;
+ char errbuf[_POSIX2_LINE_MAX];
+ char **retvalargs;
+#define MAXTOKENS 2
+ char *tokens[MAXTOKENS];
+ static char retval[PATH_MAX];
+ int cnt;
+ size_t len;
+ struct stat sb;
+ pid_t cpid = getpid();
+
+ int mib[] = { CTL_KERN, KERN_PROC_ARGS, cpid, KERN_PROC_ARGV };
+
+ if (sysctl(mib, 4, NULL, &len, NULL, 0) != -1) {
+ retvalargs = static_cast<char**>(malloc(len));
+ if (!retvalargs)
+ goto out;
+
+ if (sysctl(mib, 4, retvalargs, &len, NULL, 0) < 0)
+ goto out;
+
+ char *cr = strdup(retvalargs[0]);
+ free(retvalargs);
+
+ *tokens = strtok(cr, ":");
+ if (tokens[0] == NULL)
+ goto out;
+
+ if (realpath(tokens[0], retval) == NULL)
+ goto out;
+
+ if (stat(retval, &sb) < 0)
+ goto out;
+
+ if ((kd = kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, errbuf)) == NULL)
+ goto out;
+
+ if ((files = kvm_getfiles(kd, KERN_FILE_BYPID, cpid,
+ sizeof(struct kinfo_file), &cnt)) == NULL) {
+ kvm_close(kd);
+ goto out;
+ }
+
+ for (int i = 0; i < cnt; i++) {
+ if (files[i].fd_fd == KERN_FILE_TEXT &&
+ files[i].va_fsid == static_cast<uint32_t>(sb.st_dev) &&
+ files[i].va_fileid == sb.st_ino) {
+ kvm_close(kd);
+ return base::FilePath(retval);
+ }
+ }
+ }
+
+out:
+ return base::FilePath();
}
#elif defined(OS_ZOS)
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