Until commit 1f2ecb0 ("bootchart: kill a bunch of global variables")
variable "head" was declared global and this action was performed by svg_header.
Now that "head" is local and passed to each function called by svg_do(...)
move the code at the beginning of svg_do(...) to restore the correct behaviour.
* kill unnecessary {}
* add newlines where appropriate
* remove dead code
* reorder variable declarations
* fix more return code logic
* pass O_CLOEXEC to all open*() calles
* use safe_close() where possible
Retrieve the handle to procfs in main(), and pass it functions
that need it. Kill the global variables.
Also, refactor lots of code in svg_title(). There's no need to access any
global variables from there either, and we really should return proper
errors from there as well.
Correctly handle the potential failure of fdopen() (because of OOM, for instance)
after potentially successful open(). Prevent leaking open fd in such case.
This patch removes includes that are not used. The removals were found with
include-what-you-use which checks if any of the symbols from a header is
in use.
since 376cd3b89c LIST_FIND_TAIL accepts
an empty list. That removed an assert in LIST_FIND_TAIL and we now
theoretically risk a null pointer deref. This adds the assert directly
to protect against that.
In trying to track down a stupid linker bug, I noticed a bunch of
memset() calls that should be using memzero() to make it more "obvious"
that the options are correct (i.e. 0 is not the length, but the data to
set). So fix up all current calls to memset(foo, 0, length) to
memzero(foo, length).
- Add space between if/for and the opening parentheses
- Place the opening brace on same line as the function (not for udev)
From the CODING_STYLE
Try to use this:
void foo() {
}
instead of this:
void foo()
{
}
Since the invention of read-only memory, write-only memory has been
considered deprecated. Where appropriate, either make use of the
value, or avoid writing it, to make it clear that it is not used.
Instead of storing bootchart sample data in arrays, this patch moves
storage to linked lists so that there is no more limit on samples.
This patch also fixes parsing of /proc/<pid>/smaps in kernels > 3.7.
code in src/shared/macro.h only defined MAX/MIN in case
they were not defined previously. however the MAX/MIN
macros implemented in glibc are not of the "safe" kind but defined
as:
define MIN(a,b) (((a)<(b))?(a):(b))
define MAX(a,b) (((a)>(b))?(a):(b))
Avoid nasty side effects by using our own versions instead.
Also fix the warnings derived from this change.
[zj: - modify MAX3 macro to fix warning about _a shadowing _a,
- do bootchart/svg.c too,
- remove unused MIN3.]
The new gcc isn't bad!
In file included from src/bootchart/svg.c:36:0:
src/bootchart/svg.c: In function 'svg_ps_bars':
./src/shared/util.h:524:13: warning: 'enc_name' may be used uninitialized in this function [-Wmaybe-uninitialized]
free(*(void**) p);
^
src/bootchart/svg.c:821:37: note: 'enc_name' was declared here
char _cleanup_free_*enc_name;
^
CC src/udev/mtd_probe/mtd_probe-probe_smartmedia.o
XSLT man/systemd.unit.5
In file included from src/bootchart/svg.c:36:0:
src/bootchart/svg.c: In function 'svg_pss_graph':
./src/shared/util.h:524:13: warning: 'enc_name' may be used uninitialized in this function [-Wmaybe-uninitialized]
free(*(void**) p);
^
src/bootchart/svg.c:395:37: note: 'enc_name' was declared here
char _cleanup_free_*enc_name;
^
Let's update bootchar to share the coding style a bit more with the rest
of the package.
- Some tabs/spaces fixes
- add #pragma to header
- split up header so that we have a 1:1 relation between .c and .h files
like everywhere else
- Prefix user command line arguments/configuration settings with "arg_".
- other coding style fixes
This reverts commit 0ea9530d40.
attribute(cleanup) can only be used inside functions (*of, sysfd
are leaked).
Cleanup functions are only called once when exiting scope (*f
is leaked twice).
bootchart.conf: direct users to `bootchart.conf(5)`, not a nonexistent
man page.
svg.c: Fix some English in the svg comment header.
* Chrome/Chromium => Chrome, Chromium
* firefox => Firefox
* much more slow => more slowly
When we merged systemd-bootchart we omitted relicensing this
to LGPL. Now that code is being used for other purposes we
need to make sure the code is shareable within systemd
without further problems.
The original committers and contributors of bootchart before it
was merged all have agreed with the relicensing.
Based-on-patch-by: Thomas Jarosch <thomas.jarosch@intra2net.com>
cppcheck reported:
[src/bootchart/svg.c:791]: (error) Mismatching allocation and deallocation: f
Bootchart is renamed to 'systemd-bootchart' and installed as
/usr/lib/systemd/systemd-bootchart. The configuration file
will reside in /etc/systemd/bootchart.conf.
Lennart Poettering