000c2ec8fe
Instead of trying to read /proc/uptime, which is not allowed on Android, we patch procps to use the sysinfo(2) syscall to figure out the uptime. This should fix at least "ps -o etime".
141 lines
4.3 KiB
Diff
141 lines
4.3 KiB
Diff
diff -u -r ../procps-ng-3.3.15/proc/sysinfo.c ./proc/sysinfo.c
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--- ../procps-ng-3.3.15/proc/sysinfo.c 2018-05-18 21:32:22.010979780 +0000
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+++ ./proc/sysinfo.c 2019-08-07 19:53:05.528343190 +0000
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@@ -33,6 +33,9 @@
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#ifdef __CYGWIN__
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#include <sys/param.h>
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#endif
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+#ifdef __ANDROID__
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+#include <sys/sysinfo.h>
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+#endif
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#include "alloc.h"
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#include "version.h"
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#include "sysinfo.h" /* include self to verify prototypes */
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@@ -104,6 +107,18 @@
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/***********************************************************************/
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int uptime(double *restrict uptime_secs, double *restrict idle_secs) {
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+#ifdef __ANDROID__
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+ /* Android does not allow read access to /proc/uptime */
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+ SET_IF_DESIRED(idle_secs, 0.);
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+ struct sysinfo system_information;
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+ if (sysinfo(&system_information) == 0) {
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+ SET_IF_DESIRED(uptime_secs, (double) system_information.uptime);
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+ return (double) system_information.uptime;
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+ } else {
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+ SET_IF_DESIRED(uptime_secs, 0.);
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+ return 0;
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+ }
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+#else
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double up=0, idle=0;
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char *savelocale;
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@@ -121,6 +136,7 @@
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SET_IF_DESIRED(uptime_secs, up);
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SET_IF_DESIRED(idle_secs, idle);
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return up; /* assume never be zero seconds in practice */
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+#endif
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}
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unsigned long getbtime(void) {
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@@ -134,6 +150,7 @@
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/* /proc/stat can get very large on multi-CPU systems so we
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can't use FILE_TO_BUF */
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if (!(f = fopen(STAT_FILE, "r"))) {
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+ return 0;
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fputs(BAD_OPEN_MESSAGE, stderr);
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fflush(NULL);
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_exit(102);
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@@ -193,7 +210,9 @@
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double up_1, up_2, seconds;
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unsigned long long jiffies;
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unsigned h;
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+#ifndef __ANDROID__
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char *savelocale;
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+#endif
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long hz;
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#ifdef _SC_CLK_TCK
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@@ -204,8 +223,10 @@
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#endif
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wait_j = hirq_j = sirq_j = stol_j = 0;
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+#ifndef __ANDROID__
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savelocale = strdup(setlocale(LC_NUMERIC, NULL));
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setlocale(LC_NUMERIC, "C");
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+#endif
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do{
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FILE_TO_BUF(UPTIME_FILE,uptime_fd); sscanf(buf, "%lf", &up_1);
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/* uptime(&up_1, NULL); */
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@@ -214,8 +235,10 @@
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FILE_TO_BUF(UPTIME_FILE,uptime_fd); sscanf(buf, "%lf", &up_2);
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/* uptime(&up_2, NULL); */
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} while((long long)( (up_2-up_1)*1000.0/up_1 )); /* want under 0.1% error */
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+#ifndef __ANDROID__
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setlocale(LC_NUMERIC, savelocale);
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free(savelocale);
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+#endif
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jiffies = user_j + nice_j + sys_j + other_j + wait_j + hirq_j + sirq_j + stol_j ;
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seconds = (up_1 + up_2) / 2;
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h = (unsigned)( (double)jiffies/seconds/smp_num_cpus );
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@@ -445,18 +468,30 @@
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/***********************************************************************/
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void loadavg(double *restrict av1, double *restrict av5, double *restrict av15) {
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double avg_1=0, avg_5=0, avg_15=0;
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+#ifndef __ANDROID__
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char *savelocale;
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+#endif
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+
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+ if (loadavg_fd == -1 && (loadavg_fd = open(LOADAVG_FILE, O_RDONLY)) == -1) {
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+ return;
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+ }
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FILE_TO_BUF(LOADAVG_FILE,loadavg_fd);
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+#ifndef __ANDROID__
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savelocale = strdup(setlocale(LC_NUMERIC, NULL));
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setlocale(LC_NUMERIC, "C");
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+#endif
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if (sscanf(buf, "%lf %lf %lf", &avg_1, &avg_5, &avg_15) < 3) {
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fputs("bad data in " LOADAVG_FILE "\n", stderr);
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+#ifndef __ANDROID__
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free(savelocale);
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+#endif
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exit(1);
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}
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+#ifndef __ANDROID__
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setlocale(LC_NUMERIC, savelocale);
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free(savelocale);
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+#endif
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SET_IF_DESIRED(av1, avg_1);
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SET_IF_DESIRED(av5, avg_5);
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SET_IF_DESIRED(av15, avg_15);
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@@ -791,27 +826,8 @@
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mem_used = kb_main_total - kb_main_free;
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kb_main_used = (unsigned long)mem_used;
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- /* zero? might need fallback for 2.6.27 <= kernel <? 3.14 */
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if (!kb_main_available) {
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-#ifdef __linux__
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- if (linux_version_code < LINUX_VERSION(2, 6, 27))
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- kb_main_available = kb_main_free;
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- else {
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- FILE_TO_BUF(VM_MIN_FREE_FILE, vm_min_free_fd);
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- kb_min_free = (unsigned long) strtoull(buf,&tail,10);
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-
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- watermark_low = kb_min_free * 5 / 4; /* should be equal to sum of all 'low' fields in /proc/zoneinfo */
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-
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- mem_available = (signed long)kb_main_free - watermark_low
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- + kb_inactive_file + kb_active_file - MIN((kb_inactive_file + kb_active_file) / 2, watermark_low)
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- + kb_slab_reclaimable - MIN(kb_slab_reclaimable / 2, watermark_low);
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-
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- if (mem_available < 0) mem_available = 0;
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- kb_main_available = (unsigned long)mem_available;
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- }
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-#else
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- kb_main_available = kb_main_free;
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-#endif /* linux */
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+ kb_main_available = kb_main_free + kb_page_cache + kb_main_buffers;
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}
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}
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