While permissions suggests that /proc/#/smaps contents
are world-readable, in practice this file might not be
available to a non-root process. Whether this is a bug
in the kernel or an intentional design decision really
makes no difference. This commit will protect pmap -X.
(everything is perfectly justified plus right margins)
(are completely filled, but of course it must be luck)
Reference(s):
commit faec340719
Author: Dimitrios Apostolou <jimis@gmx.net>
Date: Thu Sep 27 22:08:04 2012 +1000
Signed-off-by: Jim Warner <james.warner@comcast.net>
pmap.c:80:7: warning: declaration of 'mapbuf' shadows a global declaration [-Wshadow]
pmap.c:63:13: warning: shadowed declaration is here [-Wshadow]
pmap.c:137:37: warning: declaration of 'mapbuf' shadows a global declaration [-Wshadow]
pmap.c:63:13: warning: shadowed declaration is here [-Wshadow]
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
Fixes error which did not happen always. Changes of being affected by
the bug where greater the more there where pids defined as pmap argument.
The debian bug referral can almost certainly reproduce the problem,
especially when tried multiple times in row.
pmap: malloc.c:3096: sYSMALLOc: Assertion `(old_top == (((mbinptr)
(((char *) &((av)->bins[((1) - 1) * 2])) - __builtin_offsetof (struct
malloc_chunk, fd)))) && old_size == 0) || ((unsigned long) (old_size) >=
(unsigned long)((((__builtin_offsetof (struct malloc_chunk,
fd_nextsize))+((2 * (sizeof(size_t))) - 1)) & ~((2 * (sizeof(size_t))) -
1))) && ((old_top)->size & 0x1) && ((unsigned long)old_end & pagemask) ==
0)' failed.
Reported-by: lee <lee@yun.yagibdah.de>
Bug-Debian: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=688180
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
Both options provide more information about a process using -X and -XX
flags. The data comes from /proc/PID/smaps so it may vary.
Signed-off-by: Craig Small <csmall@enc.com.au>
If stream status is not checked at the end of execution below problem
would not report error, or non-zero exit code. The uptime is just an
example same was true with all commands of the project.
$ uptime >&- ; echo $?
uptime: write error: Bad file descriptor
1
$ uptime >/dev/full ; echo $?
uptime: write error: No space left on device
1
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
Fix to an edge case. When user defined begining of address range to
be at between two allocations the previous allocation which ended to
that address was included to printout. After this commit one will
see only allocations that are within range definition.
$ pmap -A00007f4e0df08000,00007f4e0df08000 895
895: bash
00007f4e0dd08000 2048K ----- /lib/libreadline.so.6.2
00007f4e0df08000 8K r---- /lib/libreadline.so.6.2
total 2056K
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
pmap.c: In function 'discover_shm_minor':
pmap.c:87:10: warning: ISO C does not support the '%Lx' gnu_scanf format [-Wformat]
pmap.c:87:10: warning: ISO C does not support the '%Lu' gnu_scanf format [-Wformat]
pmap.c: In function 'mapping_name':
pmap.c:128:3: warning: ISO C does not support the '%Lx' gnu_printf format [-Wformat]
pmap.c:128:3: warning: ISO C does not support the '%Lx' gnu_printf format [-Wformat]
pmap.c: In function 'one_proc':
pmap.c:265:10: warning: ISO C does not support the '%Lx' gnu_scanf format [-Wformat]
pmap.c:265:10: warning: ISO C does not support the '%Lu' gnu_scanf format [-Wformat]
pmap.c:315:11: warning: ISO C does not support the '%Lx' gnu_printf format [-Wformat]
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
pmap.c:436 main(59) error: we previously assumed 'arg1' could be null (see line 427)
pmap.c:136:3: warning: return discards 'const' qualifier from pointer target type [enabled by default]
pmap.c:142:4: warning: return discards 'const' qualifier from pointer target type [enabled by default]
pmap.c:150:2: warning: return discards 'const' qualifier from pointer target type [enabled by default]
pmap.c:300:8: warning: assignment discards 'const' qualifier from pointer target type [enabled by default]
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
pmap.c:300:8: warning: assignment discards 'const' qualifier
from pointer target type [enabled by default]
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
err and warn are BSD format but they are not recommended by library
developers. However their consiseness is useful!
The solution is to use some macros that create xerr etc which then
just map to the error() function. The next problem is error() uses
program_invocation_name so we set this to program_invovation_short_name
This is a global set but seems to be the convention (or at least errors
are on the short name only) used everywhere else.
The Kbytes column when using the pmap -x flag would always be zero. This
was because the diff variable was reset before it could be printed.
pmap with no -x was not impacted by this bug or fix.
Add the following three functions to most of the commands.
setlocale (LC_ALL, "");
bindtextdomain(PACKAGE, LOCALEDIR);
textdomain(PACKAGE);
Reference: http://www.freelists.org/post/procps/backporting,1
Reported-by: Jim Warner <james.warner@comcast.net>
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
Library changes
readproc
. added support for supplementary groups
. eliminated 2 potential mem leak sources
. shortcut used for multi-threaded str
vectors & ptrs was obsoleted
. freeing of proc_t related dynamic
memory now rests with the library
. standardized/normalized many c comments
sysinfo
. corrected note regarding glibc & cpuinfo
library.map
. made the visible freeproc accessable
Program changes
pmap
. initialized buffer for new readproc i/f
. eliminated now obsolete free() call
ps
. added width aware supgrp support
. initialized buffers for new readproc i/f
. eliminated now obsolete free() calls
top
. added supgrp support as variable width
. eliminated now obsolete free() calls
. expoilted library freeproc function
. corrected -h|v args text & spacing
. updated some c comments
Documentation changes
ps.1
. added supgid and supgrp
top.1
. added supgid and supgrp
. addition of above required renumbering
many fields in section 3a. DESCRIPTIONS
