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From: Corinna Vinschen <corinna@sourceware.org> To: cygwin-cvs@sourceware.org Subject: [newlib-cygwin] fhandler_process.cc(format_process_stat): fix /proc/pid/stat issues Date: Wed, 11 May 2022 08:00:21 +0000 (GMT) [thread overview] Message-ID: <20220511080021.2DBC63857402@sourceware.org> (raw) https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=437d0a8f885036f77a6ae606bbe1ccf90fe79729 commit 437d0a8f885036f77a6ae606bbe1ccf90fe79729 Author: Brian Inglis <Brian.Inglis@SystematicSW.ab.ca> Date: Tue May 10 08:44:42 2022 -0600 fhandler_process.cc(format_process_stat): fix /proc/pid/stat issues fix tty_nr maj/min bits, vmmaxrss units, and x86 format mismatch: ctty maj is 31:16, min is 15:0; tty_nr s/b maj 15:8, min 31:20, 7:0; vmmaxrss s/b bytes not pages; times all 64 bit - change formats of first two instances from %lu to %U; realign sprintf formats and variables/values in more logical groups Diff: --- winsup/cygwin/fhandler_process.cc | 33 ++++++++++++++++++++------------- 1 file changed, 20 insertions(+), 13 deletions(-) diff --git a/winsup/cygwin/fhandler_process.cc b/winsup/cygwin/fhandler_process.cc index 4c42bc015..718945b9a 100644 --- a/winsup/cygwin/fhandler_process.cc +++ b/winsup/cygwin/fhandler_process.cc @@ -1092,6 +1092,11 @@ format_process_stat (void *data, char *&destbuf) vmsize = 0UL, vmrss = 0UL, vmmaxrss = 0UL; uint64_t utime = 0ULL, stime = 0ULL, start_time = 0ULL; int nice = 0; +/* ctty maj is 31:16, min is 15:0; tty_nr s/b maj 15:8, min 31:20, 7:0; + maj is 31:16 >> 16 & fff << 8; min is 15:0 >> 8 & ff << 20 | & ff */ + int tty_nr = (((p->ctty >> 8) & 0xff) << 20) + | (((p->ctty >> 16) & 0xfff) << 8) + | (p->ctty & 0xff); if (p->process_state & PID_EXITED) strcpy (cmd, "<defunct>"); @@ -1171,23 +1176,25 @@ format_process_stat (void *data, char *&destbuf) else start_time = (p->start_time - to_time_t (&stodi.BootTime)) * CLOCKS_PER_SEC; unsigned page_size = wincap.page_size (); - vmsize = vmc.PagefileUsage; - vmrss = vmc.WorkingSetSize / page_size; - vmmaxrss = ql.MaximumWorkingSetSize / page_size; + vmsize = vmc.PagefileUsage; /* bytes */ + vmrss = vmc.WorkingSetSize / page_size; /* pages */ + vmmaxrss = ql.MaximumWorkingSetSize; /* bytes */ destbuf = (char *) crealloc_abort (destbuf, strlen (cmd) + 320); return __small_sprintf (destbuf, "%d (%s) %c " - "%d %d %d %d %d " - "%u %lu %lu %u %u %lu %lu " - "%U %U %d %d %d %d " - "%U %lu " - "%ld %lu\n", + "%d %d %d %d " + "%d %u %lu %lu %u %u " + "%U %U %U %U " + "%d %d %d %d " + "%U " + "%lu %ld %lu\n", p->pid, cmd, state, - p->ppid, p->pgid, p->sid, p->ctty, -1, - 0, fault_count, fault_count, 0, 0, utime, stime, - utime, stime, NZERO + nice, nice, 0, 0, - start_time, vmsize, - vmrss, vmmaxrss + p->ppid, p->pgid, p->sid, tty_nr, + -1, 0, fault_count, fault_count, 0, 0, + utime, stime, utime, stime, + NZERO + nice, nice, 0, 0, + start_time, + vmsize, vmrss, vmmaxrss ); }
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