OS-3820 lxbrand ptrace(2): the next generation
OS-3685 lxbrand PTRACE_O_TRACEFORK race condition
OS-3834 lxbrand 64-bit strace(1) reports 64-bit process as using x32 ABI
OS-3794 lxbrand panic on init signal death
Reviewed by: Robert Mustacchi <rm@joyent.com>
Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>
Reviewed by: Bryan Cantrill <bryan@joyent.com>
OS-3463 expose process argv through procfs
OS-3207 in lx zone, 'ps auxww' does not show full cmdline for processes
Reviewed by: Robert Mustacchi <rm@joyent.com>
Reviewed by: Patrick Mooney <patrick.mooney@joyent.com>
OS-3383 lx brand: node.js test test-setproctitle.js fails
OS-15 add procfs equivalent to prctl(PR_SET_NAME)

@@ -511,11 +511,19 @@
                         indicates that the lwp stopped due to internal
                         synchronization of lwps within the process. pr_what is
                         unused in this case.
 
 
+       PR_BRAND
+                        indicates that the lwp stopped for a brand-specific
+                        reason.  Interpretation of the value of pr_what
+                        depends on which zone brand is in use.  It is not
+                        generally expected that an lwp stopped in this state
+                        will be restarted by native proc(4) consumers.
 
+
+
        pr_cursig names the current signal, that is, the next signal to be
        delivered to the lwp, if any. pr_info, when the lwp is in a
        PR_SIGNALLED or PR_FAULTED stop, contains additional information
        pertinent to the particular signal or fault (see <sys/siginfo.h>).
 

@@ -743,10 +751,20 @@
        pr_pctcpu and pr_pctmem are 16-bit binary fractions in the range 0.0 to
        1.0 with the binary point to the right of the high-order bit (1.0 ==
        0x8000). pr_pctcpu is the summation over all lwps in the process.
 
 
+       The pr_fname and pr_psargs are writable by the owner of the process. To
+       write to them, the psinfo file should be open for writing and the
+       desired value for the field should be written at the file offset that
+       corresponds to the member of structure.  No other entry may be written
+       to; if a write is attempted to an offset that does not represent one of
+       these two memers, or if the size of the write is not exactly the size
+       of the member being written, no bytes will be written and zero will be
+       returned.
+
+
        pr_lwp contains the ps(1) information for the representative lwp.  If
        the process is a zombie, pr_nlwp, pr_nzomb, and pr_lwp.pr_lwpid are
        zero and the other fields of pr_lwp are undefined:
 
          typedef struct lwpsinfo {

@@ -851,10 +869,17 @@
        Contains the initial values of the process's aux vector in an array of
        auxv_t structures (see <sys/auxv.h>). The values are those that were
        passed by the operating system as startup information to the dynamic
        linker.
 
+   argv
+       Contains the concatenation of each of the argument strings, including
+       their NUL terminators, in the argument vector (argv) for the process.
+       If the process has modified either its argument vector, or the contents
+       of any of the strings referenced by that vector, those changes will be
+       visible here.
+
    ldt
        This file exists only on x86-based machines. It is non-empty only if
        the process has established a local descriptor table (LDT). If non-
        empty, the file contains the array of currently active LDT entries in
        an array of elements of type struct ssd, defined in <sys/sysi86.h>, one

@@ -2055,10 +2080,15 @@
        /proc/pid/auxv
 
            process aux vector
 
 
+       /proc/pid/argv
+
+           process argument vector
+
+
        /proc/pid/ldt
 
            process LDT (x86 only)
 
 

@@ -2318,6 +2348,6 @@
        <sys/regset.h> are similar to but not the same as the types prgregset_t
        and prfpregset_t defined in <procfs.h>.
 
 
 
-                                March 31, 2013                         PROC(4)
+                                 May 19, 2014                          PROC(4)