https://gitlab.com/procps-ng/procps/-/merge_requests/286

From c116ebd4b759ff79b391d18802a227738be9d94c Mon Sep 17 00:00:00 2001
From: Svante Signell <svante.signell@gmail.com>
Date: Wed, 11 Feb 2026 16:10:37 +0100
Subject: [PATCH] Add support for GNU/Hurd

---
 library/pids.c                   | 12 ++++++++++++
 library/readproc.c               |  4 ++++
 library/uptime.c                 |  4 ++++
 src/top/top.c                    |  6 ++++++
 testsuite/ps.test/test-hugetlb.c |  2 +-
 5 files changed, 27 insertions(+), 1 deletion(-)

diff --git a/library/pids.c b/library/pids.c
index 8855920a..b7b6e3c6 100644
--- a/library/pids.c
+++ b/library/pids.c
@@ -1039,9 +1039,15 @@ static inline int pids_items_check_failed (
      * if (procps_pids_new(&info, PIDS_noop, 3) < 0)
      *                            ^~~~~~~~~~~~~~~~
      */
+/* (void*)items=0x3010<(void*)0x8000 causing FAIL:procps_pids new then unref */
+#ifdef __GNU__
+    if (numitems < 1)
+        return 1;
+#else
     if (numitems < 1
     || (void *)items < (void *)0x8000)      // twice as big as our largest enum
         return 1;
+#endif
 
     for (i = 0; i < numitems; i++) {
         // a pids_item is currently unsigned, but we'll protect our future
@@ -1523,8 +1529,10 @@ fresh_start:
         pids_containers_check();
 
     info->boot_tics = 0;
+#ifdef CLOCK_BOOTTIME
     if (0 >= clock_gettime(CLOCK_BOOTTIME, &ts))
         info->boot_tics = (ts.tv_sec + ts.tv_nsec * 1.0e-9) * info->hertz;
+#endif
 
     if (NULL == info->read_something(info->get_PT, &info->get_proc))
         return NULL;
@@ -1567,8 +1575,10 @@ PROCPS_EXPORT struct pids_fetch *procps_pids_reap (
     info->read_something = which ? readeither : readproc;
 
     info->boot_tics = 0;
+#ifdef CLOCK_BOOTTIME
     if (0 >= clock_gettime(CLOCK_BOOTTIME, &ts))
         info->boot_tics = (ts.tv_sec + ts.tv_nsec * 1.0e-9) * info->hertz;
+#endif
 
     rc = pids_stacks_fetch(info);
 
@@ -1676,8 +1686,10 @@ PROCPS_EXPORT struct pids_fetch *procps_pids_select (
     info->read_something = (which & PIDS_FETCH_THREADS_TOO) ? readeither : readproc;
 
     info->boot_tics = 0;
+#ifdef CLOCK_BOOTTIME
     if (0 >= clock_gettime(CLOCK_BOOTTIME, &ts))
         info->boot_tics = (ts.tv_sec + ts.tv_nsec * 1.0e-9) * info->hertz;
+#endif
 
     rc = pids_stacks_fetch(info);
 
diff --git a/library/readproc.c b/library/readproc.c
index a7f79051..7bb81625 100644
--- a/library/readproc.c
+++ b/library/readproc.c
@@ -1745,7 +1745,11 @@ int look_up_our_self(void) {
     int fd;
 
     memset(&p, 0, sizeof(proc_t));
+#ifdef O_PATH
     fd = open("/proc/self", O_PATH|O_DIRECTORY);
+#else
+    fd = open("/proc/self", O_DIRECTORY);
+#endif
     if(fd < 0 || file2str(fd, "stat", &ub) == -1) {
         fprintf(stderr, "Error, do this: mount -t proc proc /proc\n");
         _exit(47);
diff --git a/library/uptime.c b/library/uptime.c
index dfff8e6e..6c09fc90 100644
--- a/library/uptime.c
+++ b/library/uptime.c
@@ -177,8 +177,12 @@ PROCPS_EXPORT int procps_container_uptime(
     if (!uptime_secs)
         return 0; //valid, but odd call
 
+#ifdef CLOCK_BOOTTIME
     if ( (rv = clock_gettime(CLOCK_BOOTTIME, &tp) < 0))
         return rv;
+#else
+        return -1;
+#endif
 
     if ( (rv = procps_pids_new(&info, items, 1) < 0))
         return rv;
diff --git a/src/top/top.c b/src/top/top.c
index a62b7e1b..d5cad3ad 100644
--- a/src/top/top.c
+++ b/src/top/top.c
@@ -2847,6 +2847,8 @@ static void *tasks_refresh (void *unused) {
 #ifdef THREADED_TSK
       sem_wait(&Semaphore_tasks_beg);
 #endif
+
+#ifdef CLOCK_BOOTTIME
       if (0 != clock_gettime(CLOCK_BOOTTIME, &ts))
          Frame_etscale = 0;
       else {
@@ -2857,6 +2859,10 @@ static void *tasks_refresh (void *unused) {
          // if in Solaris mode, adjust our scaling for all cpus
          Frame_etscale = 100.0f / ((float)Hertz * (float)et * (Rc.mode_irixps ? 1 : Cpu_cnt));
       }
+#else
+         Frame_etscale = 0;
+
+#endif
       what = Thread_mode ? PIDS_FETCH_THREADS_TOO : PIDS_FETCH_TASKS_ONLY;
       if (Monpidsidx) {
          what |= PIDS_SELECT_PID;
diff --git a/testsuite/ps.test/test-hugetlb.c b/testsuite/ps.test/test-hugetlb.c
index cfd5c30f..38b8488c 100644
--- a/testsuite/ps.test/test-hugetlb.c
+++ b/testsuite/ps.test/test-hugetlb.c
@@ -59,7 +59,7 @@ int main(int argc, const char *argv[])
         usage(argv[0], "Invalid size");
 
     if (MAP_FAILED == (addr = mmap(NULL, (kbytes*1024), (PROT_READ | PROT_WRITE),
-                    (MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB), 0, 0))) {
+                    (MAP_PRIVATE | MAP_ANONYMOUS), 0, 0))) {
         perror("mmap");
         exit(EXIT_FAILURE);
     }
-- 
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