Commit Graph

93 Commits

Author SHA1 Message Date
Christian Göttsche 68460b25e3 Reset the signal handlers at program exit
The signal handler will access the Settings struct, which gets freed at
normal program finalization.

When using leak sanitizers with ASAN_OPTIONS=abort_on_error=1, which
runs after program termination, any leak causes SIGABRT to be raised,
calling the crash handler, which will derefernce the freed Settings.

    ==44741==ERROR: AddressSanitizer: heap-use-after-free on address 0x60d000000080 at pc 0x0000005680df bp 0x7fffe335e960 sp 0x7fffe335e958
    READ of size 8 at 0x60d000000080 thread T0
        #0 0x5680de in Settings_write /home/christian/Coding/workspaces/htop/Settings.c:329:26
        #1 0x4f77b7 in CRT_handleSIGSEGV /home/christian/Coding/workspaces/htop/CRT.c:1020:4
        #2 0x7f8a1120c13f  (/lib/x86_64-linux-gnu/libpthread.so.0+0x1413f)
        #3 0x7f8a11042ce0 in __libc_signal_restore_set signal/../sysdeps/unix/sysv/linux/internal-signals.h:86:3
        #4 0x7f8a11042ce0 in raise signal/../sysdeps/unix/sysv/linux/raise.c:48:3
        #5 0x7f8a1102c536 in abort stdlib/abort.c:79:7
        #6 0x4c3db6 in __sanitizer::Abort() (/home/christian/Coding/workspaces/htop/htop+0x4c3db6)
        #7 0x4c2090 in __sanitizer::Die() (/home/christian/Coding/workspaces/htop/htop+0x4c2090)
        #8 0x4d0a17 in __lsan::HandleLeaks() (/home/christian/Coding/workspaces/htop/htop+0x4d0a17)
        #9 0x4cd950 in __lsan::DoLeakCheck() (/home/christian/Coding/workspaces/htop/htop+0x4cd950)
        #10 0x7f8a110454d6 in __run_exit_handlers stdlib/exit.c:108:8
        #11 0x7f8a11045679 in exit stdlib/exit.c:139:3
        #12 0x7f8a1102dd10 in __libc_start_main csu/../csu/libc-start.c:342:3
        #13 0x428a19 in _start (/home/christian/Coding/workspaces/htop/htop+0x428a19)

    0x60d000000080 is located 64 bytes inside of 144-byte region [0x60d000000040,0x60d0000000d0)
    freed by thread T0 here:
        #0 0x4a4f72 in free (/home/christian/Coding/workspaces/htop/htop+0x4a4f72)
        #1 0x566693 in Settings_delete /home/christian/Coding/workspaces/htop/Settings.c:32:4
        #2 0x4ede10 in CommandLine_run /home/christian/Coding/workspaces/htop/CommandLine.c:393:4
        #3 0x4d6f32 in main /home/christian/Coding/workspaces/htop/htop.c:15:11
        #4 0x7f8a1102dd09 in __libc_start_main csu/../csu/libc-start.c:308:16

    previously allocated by thread T0 here:
        #0 0x4a5372 in __interceptor_calloc (/home/christian/Coding/workspaces/htop/htop+0x4a5372)
        #1 0x57f61a in xCalloc /home/christian/Coding/workspaces/htop/XUtils.c:55:17
        #2 0x5688a6 in Settings_new /home/christian/Coding/workspaces/htop/Settings.c:392:21
        #3 0x4ecb57 in CommandLine_run /home/christian/Coding/workspaces/htop/CommandLine.c:303:25
        #4 0x4d6f32 in main /home/christian/Coding/workspaces/htop/htop.c:15:11
        #5 0x7f8a1102dd09 in __libc_start_main csu/../csu/libc-start.c:308:16

SUMMARY: AddressSanitizer: heap-use-after-free /home/christian/Coding/workspaces/htop/Settings.c:329:26 in Settings_write
2021-08-16 08:05:07 +02:00
Nathan Scott f0ed0fdafb Add a new DynamicMeter class for runtime Meter extension
This commit is based on exploratory work by Sohaib Mohamed.
The end goal is two-fold - to support addition of Meters we
build via configuration files for both the PCP platform and
for scripts ( https://github.com/htop-dev/htop/issues/526 )

Here, we focus on generic code and the PCP support.  A new
class DynamicMeter is introduced - it uses the special case
'param' field handling that previously was used only by the
CPUMeter, such that every runtime-configured Meter is given
a unique identifier.  Unlike with the CPUMeter this is used
internally only.  When reading/writing to htoprc instead of
CPU(N) - where N is an integer param (CPU number) - we use
the string name for each meter.  For example, if we have a
configuration for a DynamicMeter for some Redis metrics, we
might read and write "Dynamic(redis)".  This identifier is
subsequently matched (back) up to the configuration file so
we're able to re-create arbitrary user configurations.

The PCP platform configuration file format is fairly simple.
We expand configs from several directories, including the
users homedir alongside htoprc (below htop/meters/) and also
/etc/pcp/htop/meters.  The format will be described via a
new pcp-htop(5) man page, but its basically ini-style and
each Meter has one or more metric expressions associated, as
well as specifications for labels, color and so on via a dot
separated notation for individual metrics within the Meter.

A few initial sample configuration files are provided below
./pcp/meters that give the general idea.  The PCP "derived"
metric specification - see pmRegisterDerived(3) - is used
as the syntax for specifying metrics in PCP DynamicMeters.
2021-07-07 10:59:36 +10:00
Christian Göttsche 36880cd61c Add read-only option
Add command line option to disable all system and process changing
features.
2021-04-14 17:21:43 +02:00
Christian Göttsche 8163b8164f TaskMeter: always show number of threads
Always show the number of kernel and userland threads, even when they
are disabled to not be shown in the process list.

The data is already available and might improve understanding the system
utilization.

Use a shadow color in case the kind of thread is hidden, else the normal
meter one.
2021-03-31 00:27:14 +02:00
Christian Göttsche d9f2eacbc5 Linux: individually show shared memory
Shmem: Total memory used by shared memory (shmem) and tmpfs

Source: https://www.kernel.org/doc/Documentation/filesystems/proc.txt

Closes: #556
2021-03-15 22:34:14 +01:00
Benny Baumann 82157f598e Refactor to remove no-op calls
This removes the call-sites of the removed setuid feature
2021-02-17 15:59:50 +01:00
Benny Baumann a73064dda9 Remove setuid support
This support was rarely ever used and has been disabled by default for some time.

As far as the developer team is aware there's no distribution that activated this
feature in their packages by default.
2021-02-17 15:59:50 +01:00
Christian Göttsche 6dba60f6bd Pass Settings to CRT_init
Resolve todo
2021-01-27 17:14:15 +01:00
David Zarzycki 03824da684 Linux: individual huge page values in the huge page meter 2021-01-19 18:06:48 +01:00
David Zarzycki 37e186fd66 Linux: Add SwapCached to the swap meter
According to the Linux kernel documentation, "SwapCached" tracks "memory
that once was swapped out, is swapped back in but still also is
in the swapfile (if memory is needed it doesn't need to be swapped out
AGAIN because it is already in the swapfile. This saves I/O)."
2021-01-11 20:27:47 +01:00
Christian Göttsche 27db9297b7 Show arrow indicating order of sorted process column 2021-01-07 14:46:44 +01:00
Christian Göttsche d609c04fe4 CRT: add METER_VALUE_ERROR and adjust some METER_VALUE_WARN colors 2020-12-26 13:32:29 +01:00
Christian Göttsche 61b8e31b41 Misc CRT cleanup 2020-12-14 21:11:20 +01:00
Nathan Scott 75e9f9a8d9 Cull the definitions of pageSize and pageSizeKB from CRT.c
By storing the per-process m_resident and m_virt values in the form
htop wants to display them in (KB, not pages), we no longer need to
have definitions of pageSize and pageSizeKB in the common CRT code.

These variables were never really CRT (i.e. display) related in the
first place.  It turns out the darwin platform code doesn't need to
use these at all (the process values are extracted from the kernel
in bytes not pages) and the other platforms can each use their own
local pagesize variables, in more appropriate locations.

Some platforms were actually already doing this, so this change is
removing duplication of logic and variables there.
2020-12-10 11:57:48 +11:00
Christian Göttsche 267014cbfe Add support to change numeric options in settings screen
Like delay or highlightDelaySecs
2020-11-25 20:46:27 +01:00
Narendran Gopalakrishnan 09fe94da18 Improving Command display/sort 2020-11-24 19:05:48 +01:00
Christian Göttsche 1b225cd7a0 Show CPU temperature in CPU meter
Show the CPU temperature in the CPU meter, like CPU frequency, instead
of using an extra Meter.
2020-11-16 16:38:54 +01:00
Daniel Lange 0951090fa4 Merge branch 'hili-new-old' of adsr/htop into highlight-new-old-processes 2020-11-16 12:55:07 +01:00
Daniel Lange f2b2735e07 Resolve merge conflicts, merge #229 "Add SystemdMeter" from @cgzones 2020-11-15 14:52:25 +01:00
Benny Baumann 61e14d4bb2 Spacing around operators 2020-11-02 22:15:01 +01:00
Christian Göttsche 2a9e8ca074 Add SystemdMeter 2020-10-31 19:51:42 +01:00
Murloc Knight ab17ef4dc0 Zram Meter feature 2020-10-31 18:51:53 +01:00
Adam Saponara dde71c6637 Highlight new and old processes (#74) 2020-10-30 21:56:16 -04:00
Christian Göttsche f757810f48 Improve handling of no data in Disk and Network IO Meters 2020-10-26 19:17:14 +01:00
Christian Göttsche 361877454f Cache PAGE_SIZE
man:sysconf(3) states:
    The values obtained from these functions are system configuration constants.
    They do not change during the lifetime of a process.
2020-10-19 14:42:35 +02:00
Benny Baumann 0f5262917f Make all required includes explicit
Information as seen by IWYU 0.12 + clang 9 on Linux
2020-10-18 20:09:05 +02:00
Christian Göttsche a802961286 Generalize Meter value colors for IO 2020-10-16 20:00:14 +02:00
Christian Göttsche 1df7fa387a Misc CRT cleanup 2020-10-14 14:28:02 +02:00
Benny Baumann 601480003f Centralise fault handling
This should be done as all platforms essentially did the same anyway and there was nothing platform specific.
2020-10-12 13:06:12 +02:00
Christian Göttsche b47bc667a2 Add key to pause process list updates 2020-10-12 13:04:00 +02:00
Nathan Scott e9fa290019 Merge branch 'update-license-and-copyright-info' 2020-10-06 10:27:38 +11:00
Michael F. Schönitzer d93cac12be
Add a date and datetime meter (#159)
Add a date meter and sort header and source files in Makefile

Change the lists of header and source files sorted alphabetical and one
file per line. This way diffs become better readable and merges easier.
2020-10-05 13:52:58 +02:00
Daniel Lange 079c2abf8e Update License consistently to GPLv2 as per COPYING file 2020-10-05 10:13:12 +02:00
Christian Göttsche e518459981 Add DiskIOMeter for IO read/write usage 2020-10-03 19:01:38 +02:00
Christian Göttsche 4b14ab9789 Adjust colors
- do not reverse CPU steal and guest in monochrome
- black on black in Light Terminal is not visible, use blue on black
- white on blue in Light Terminal is display as blue on black, use
  yellow on black
- re-draw FunctionBar after color change
2020-10-02 14:41:27 +02:00
Christian Göttsche 241e4b3dbf Drop redundant declarations
- `CRT_fatalError()` is declared twice in CRT.h
- `Process_pidFormat`, `Process_writeField()` and `Process_compare` are
  declared twice in Process.h
- `btime` is defined in LinuxProcess.c and also declared in
  LinuxProcess.h, so drop in LinuxProcessList.h
2020-09-29 10:44:42 +02:00
Christian Göttsche b85a31415e Avoid checking of undefined macros
These feature macros are either define or not defined at all at the
configure step.
2020-09-18 12:28:40 +02:00
Christian Göttsche c3952e7c20 Use strict function prototypes
int foo(); declares a function taking any number of arguments.
2020-09-18 12:28:40 +02:00
Christian Göttsche 7107d1db0b Refactor __attribute__ usage
Use internal macros for compatibility with non GNUC compilers.
2020-09-18 12:28:40 +02:00
Benny Baumann 40441dca8e Enhance highlighting of semi-large and large numbers 2020-09-17 22:08:13 +02:00
Christian Göttsche 5d4061732f Allow third party sigsegv handler
For example from sanitizers.
2020-09-17 21:54:21 +02:00
Hugo Musso Gualandi 5ad3c11eaa Alignment tweak 2020-09-12 19:21:27 -03:00
Hugo Musso Gualandi 9207401f97 Clean up some code duplication in the header files
PR htop-dev/htop#70 got rid of the infrastructure for generating header
files, but it left behind some code duplication.

Some of cases are things that belong in the header file and don't need
to be repeated in the C file. Other cases are things that belong in the
C file and don't need to be in the header file.

In this commit I tried to fix all of these that I could find. When given
a choice I preferred keeping things out of the header file, unless they
were being used by someone else.
2020-09-12 19:20:44 -03:00
Nathan Scott 8ec5d4a3a0 Further, minor cleanups to headers post-MakeHeaders
Remove leftover empty ifdef/endif pairs, whitespace.
The generated htop.h file was also unused - removed.
2020-09-08 17:33:50 +10:00
Zev Weiss 7b7822b896 Remove superfluous 'extern's from function declarations.
Applied via:

  $ find * -name '*.h' -exec sed -i -r 's/^extern (.+\()/\1/;' {} +

Suggested-by: Bert Wesarg <bert.wesarg@googlemail.com>
2020-09-03 11:59:26 -05:00
Zev Weiss a1a027b9bd Axe automated header generation.
Reasoning:
 - implementation was unsound -- broke down when I added a fairly
   basic macro definition expanding to a struct initializer in a *.c
   file.

 - made it way too easy (e.g. via otherwise totally innocuous git
   commands) to end up with timestamps such that it always ran
   MakeHeader.py but never used its output, leading to overbuild noise
   when running what should be a null 'make'.

 - but mostly: it's just an awkward way of dealing with C code.
2020-09-03 11:58:58 -05:00
Christian Hesse db5adbeae0 add option (-U, --no-unicode) to disable unicode at runtime 2020-09-01 10:09:00 +02:00
Bert Wesarg f861a2c616 Revert "Use UTF-8 for check buttons and tree open/closed"
This reverts commit 5d5913d355b3a9f03da589b3542b8f55467b4ed6.
2020-08-31 22:12:46 +02:00
Nathan Scott 728b04bbb5 Merge branch 'ci-hwloc-job' of https://github.com/bertwesarg/htop into bertwesarg-ci-hwloc-job 2020-08-26 10:39:43 +10:00
Nathan Scott 9a55efc8b5 Merge branch 'hishamhm-pull-920' 2020-08-20 18:24:35 +10:00