termux-packages/packages/procps/proc-sysinfo.c.patch
Leonid Pliushch b9cbd870d9 procps: don't read file /proc/sys/vm/min_free_kbytes
Access to this file is prohibited on some devices by SELinux and causes
utilities to treat /proc as not mounted.

Related issues:

 * https://github.com/termux/termux-packages/issues/1625
 * https://github.com/termux/termux-packages/issues/4132
2019-08-07 15:38:45 +03:00

136 lines
4.3 KiB
Diff

diff -uNr procps-ng-3.3.15/proc/sysinfo.c procps-ng-3.3.15.mod/proc/sysinfo.c
--- procps-ng-3.3.15/proc/sysinfo.c 2018-05-19 00:32:22.010979780 +0300
+++ procps-ng-3.3.15.mod/proc/sysinfo.c 2019-08-07 15:35:19.297799005 +0300
@@ -105,19 +105,31 @@
/***********************************************************************/
int uptime(double *restrict uptime_secs, double *restrict idle_secs) {
double up=0, idle=0;
+#ifndef __ANDROID__
char *savelocale;
+#endif
+
+ if (uptime_fd == -1 && (uptime_fd = open(UPTIME_FILE, O_RDONLY)) == -1) {
+ return 0;
+ }
FILE_TO_BUF(UPTIME_FILE,uptime_fd);
+#ifndef __ANDROID__
savelocale = strdup(setlocale(LC_NUMERIC, NULL));
setlocale(LC_NUMERIC,"C");
+#endif
if (sscanf(buf, "%lf %lf", &up, &idle) < 2) {
+#ifndef __ANDROID__
setlocale(LC_NUMERIC,savelocale);
free(savelocale);
+#endif
fputs("bad data in " UPTIME_FILE "\n", stderr);
return 0;
}
+#ifndef __ANDROID__
setlocale(LC_NUMERIC,savelocale);
free(savelocale);
+#endif
SET_IF_DESIRED(uptime_secs, up);
SET_IF_DESIRED(idle_secs, idle);
return up; /* assume never be zero seconds in practice */
@@ -134,6 +146,7 @@
/* /proc/stat can get very large on multi-CPU systems so we
can't use FILE_TO_BUF */
if (!(f = fopen(STAT_FILE, "r"))) {
+ return 0;
fputs(BAD_OPEN_MESSAGE, stderr);
fflush(NULL);
_exit(102);
@@ -193,7 +206,9 @@
double up_1, up_2, seconds;
unsigned long long jiffies;
unsigned h;
+#ifndef __ANDROID__
char *savelocale;
+#endif
long hz;
#ifdef _SC_CLK_TCK
@@ -204,8 +219,10 @@
#endif
wait_j = hirq_j = sirq_j = stol_j = 0;
+#ifndef __ANDROID__
savelocale = strdup(setlocale(LC_NUMERIC, NULL));
setlocale(LC_NUMERIC, "C");
+#endif
do{
FILE_TO_BUF(UPTIME_FILE,uptime_fd); sscanf(buf, "%lf", &up_1);
/* uptime(&up_1, NULL); */
@@ -214,8 +231,10 @@
FILE_TO_BUF(UPTIME_FILE,uptime_fd); sscanf(buf, "%lf", &up_2);
/* uptime(&up_2, NULL); */
} while((long long)( (up_2-up_1)*1000.0/up_1 )); /* want under 0.1% error */
+#ifndef __ANDROID__
setlocale(LC_NUMERIC, savelocale);
free(savelocale);
+#endif
jiffies = user_j + nice_j + sys_j + other_j + wait_j + hirq_j + sirq_j + stol_j ;
seconds = (up_1 + up_2) / 2;
h = (unsigned)( (double)jiffies/seconds/smp_num_cpus );
@@ -445,18 +464,30 @@
/***********************************************************************/
void loadavg(double *restrict av1, double *restrict av5, double *restrict av15) {
double avg_1=0, avg_5=0, avg_15=0;
+#ifndef __ANDROID__
char *savelocale;
+#endif
+
+ if (loadavg_fd == -1 && (loadavg_fd = open(LOADAVG_FILE, O_RDONLY)) == -1) {
+ return;
+ }
FILE_TO_BUF(LOADAVG_FILE,loadavg_fd);
+#ifndef __ANDROID__
savelocale = strdup(setlocale(LC_NUMERIC, NULL));
setlocale(LC_NUMERIC, "C");
+#endif
if (sscanf(buf, "%lf %lf %lf", &avg_1, &avg_5, &avg_15) < 3) {
fputs("bad data in " LOADAVG_FILE "\n", stderr);
+#ifndef __ANDROID__
free(savelocale);
+#endif
exit(1);
}
+#ifndef __ANDROID__
setlocale(LC_NUMERIC, savelocale);
free(savelocale);
+#endif
SET_IF_DESIRED(av1, avg_1);
SET_IF_DESIRED(av5, avg_5);
SET_IF_DESIRED(av15, avg_15);
@@ -791,27 +822,8 @@
mem_used = kb_main_total - kb_main_free;
kb_main_used = (unsigned long)mem_used;
- /* zero? might need fallback for 2.6.27 <= kernel <? 3.14 */
if (!kb_main_available) {
-#ifdef __linux__
- if (linux_version_code < LINUX_VERSION(2, 6, 27))
- kb_main_available = kb_main_free;
- else {
- FILE_TO_BUF(VM_MIN_FREE_FILE, vm_min_free_fd);
- kb_min_free = (unsigned long) strtoull(buf,&tail,10);
-
- watermark_low = kb_min_free * 5 / 4; /* should be equal to sum of all 'low' fields in /proc/zoneinfo */
-
- mem_available = (signed long)kb_main_free - watermark_low
- + kb_inactive_file + kb_active_file - MIN((kb_inactive_file + kb_active_file) / 2, watermark_low)
- + kb_slab_reclaimable - MIN(kb_slab_reclaimable / 2, watermark_low);
-
- if (mem_available < 0) mem_available = 0;
- kb_main_available = (unsigned long)mem_available;
- }
-#else
- kb_main_available = kb_main_free;
-#endif /* linux */
+ kb_main_available = kb_main_free + kb_page_cache + kb_main_buffers;
}
}