forked from enlightenment/evisum
macOS: Access stack of process for argc and argv.
This allows us to properly obtain the command and its arguments as per other operating systems we support.
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3559064cfd
commit
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10
NEWS
10
NEWS
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@ -7,14 +7,16 @@ Evisum 0.4.0
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* Set application priority (nice).
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* UI improvements.
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* Offer kvm_openfiles means of obtaining PID list on
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FreeBSD-based platforms. This requires specific
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permissions (s+g kmem). We fallback if that fails.
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use a genlist (meh).
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* Save settings upon exit (kb/mb/gb) and sorting.
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FreeBSD-based platforms. This requires specific
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permissions (s+g kmem). We fallback if that fails.
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use a genlist (meh).
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* Save settings upon exit. Sorting and window size.
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* Reduce object creation and deletion.
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* Improve display of memory and storage sizes.
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* Use object caching where applicable.
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* Remove redundant code.
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* FreeBSD et al. Get process arguments akin to Linux.
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* macOS improvements for process information.
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* Process command-line (new field).
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* Other stuff.
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@ -7,6 +7,7 @@
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# include <sys/sysctl.h>
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# include <sys/user.h>
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# include <sys/proc.h>
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# include <libgen.h>
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#endif
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#if defined(__FreeBSD__) || defined(__DragonFly__) || defined(__OpenBSD__)
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@ -483,6 +484,127 @@ _process_list_openbsd_get(void)
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#endif
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#if defined(__MacOS__)
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static void
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_cmd_get(Proc_Info *p, int pid)
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{
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char *cp, *args, **argv;
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int mib[3], argmax, argc;
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size_t size;
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mib[0] = CTL_KERN;
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mib[1] = KERN_ARGMAX;
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size = sizeof(argmax);
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if (sysctl(mib, 2, &argmax, &size, NULL, 0) == -1) return;
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/* Make a sysctl() call to get the raw argument space of the process. */
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mib[0] = CTL_KERN;
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mib[1] = KERN_PROCARGS2;
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mib[2] = pid;
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size = (size_t) argmax;
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args = malloc(argmax);
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if (!args) return;
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/*
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* Make a sysctl() call to get the raw argument space of the process.
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* The layout is documented in start.s, which is part of the Csu
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* project. In summary, it looks like:
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*
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* /---------------\ 0x00000000
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* : :
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* : :
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* |---------------|
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* | argc |
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* |---------------|
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* | arg[0] |
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* |---------------|
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* : :
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* : :
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* |---------------|
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* | arg[argc - 1] |
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* |---------------|
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* | 0 |
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* |---------------|
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* | env[0] |
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* |---------------|
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* : :
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* : :
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* |---------------|
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* | env[n] |
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* |---------------|
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* | 0 |
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* |---------------| <-- Beginning of data returned by sysctl() is here.
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* | argc |
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* |---------------|
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* | exec_path |
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* |:::::::::::::::|
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* | |
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* | String area. |
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* | |
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* |---------------| <-- Top of stack.
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* : :
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* : :
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* \---------------/ 0xffffffff
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*/
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if (sysctl(mib, 3, args, &size, NULL, 0) == -1) return;
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memcpy(&argc, args, sizeof(argc));
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cp = args + sizeof(argc);
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/* Skip exec path */
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for (;cp < &args[size]; cp++)
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{
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if (*cp == '\0') break;
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}
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if (cp == &args[size]) return;
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/* Skip any padded NULLs.
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for (;cp < &args[size]; cp++)
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{
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if (*cp == '\0') break;
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}
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if (cp == &args[size]) return;
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argv = malloc(1 + argc * sizeof(char *));
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if (!argv) return;
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int i = 0;
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argv[i] = cp;
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for (cp = args + sizeof(int); cp < &args[size] && i < argc; cp++)
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{
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if (*cp == '\0')
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{
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while (*cp == '\0') cp++;
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argv[i++] = cp;
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}
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}
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if (i == 0) i++;
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argv[i] = NULL;
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p->command = strdup(basename(argv[0]));
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Eina_Strbuf *buf = eina_strbuf_new();
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for (i = 0; i < argc; i++)
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eina_strbuf_append_printf(buf, "%s ", argv[i]);
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if (argc > 0)
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p->arguments = eina_strbuf_release(buf);
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else
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eina_strbuf_free(buf);
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free(args);
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free(argv);
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}
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static Eina_List *
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_process_list_macos_get(void)
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{
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@ -500,11 +622,6 @@ _process_list_macos_get(void)
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p->pid = i;
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p->uid = taskinfo.pbsd.pbi_uid;
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p->cpu_id = -1;
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if (taskinfo.pbsd.pbi_name[0])
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p->command = strdup(taskinfo.pbsd.pbi_name);
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else
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p->command = strdup(taskinfo.pbsd.pbi_comm);
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p->cpu_time = taskinfo.ptinfo.pti_total_user + taskinfo.ptinfo.pti_total_system;
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p->cpu_time /= 10000000;
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p->state = _process_state_name(taskinfo.pbsd.pbi_status);
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@ -514,6 +631,7 @@ _process_list_macos_get(void)
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p->priority = taskinfo.ptinfo.pti_priority;
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p->nice = taskinfo.pbsd.pbi_nice;
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p->numthreads = taskinfo.ptinfo.pti_threadnum;
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_cmd_get(p, i);
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list = eina_list_append(list, p);
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}
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@ -542,11 +660,6 @@ proc_info_by_pid(int pid)
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p->pid = pid;
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p->uid = taskinfo.pbsd.pbi_uid;
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p->cpu_id = workqueue.pwq_nthreads;
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if (taskinfo.pbsd.pbi_name[0])
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p->command = strdup(taskinfo.pbsd.pbi_name);
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else
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p->command = strdup(taskinfo.pbsd.pbi_comm);
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p->cpu_time = taskinfo.ptinfo.pti_total_user + taskinfo.ptinfo.pti_total_system;
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p->cpu_time /= 10000000;
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p->state = _process_state_name(taskinfo.pbsd.pbi_status);
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@ -556,6 +669,7 @@ proc_info_by_pid(int pid)
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p->priority = taskinfo.ptinfo.pti_priority;
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p->nice = taskinfo.pbsd.pbi_nice;
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p->numthreads = taskinfo.ptinfo.pti_threadnum;
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_cmd_get(p, pid);
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return p;
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}
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