procps/library
Jim Warner 046883b9d3 library: address an 'uninitialised value' VALGRIND bug
Thanks to valgrind and his --track-origins=yes option,
the problem and solution was suggested as shown below.

[ and it was created in that commit referenced below ]

But, after attacking this problem by adding a memset()
call in pids.c, a 2nd valgrind oops, also shown below,
was encountered. The dynamically acquired 'cmd' again!

[ might help to explain why changes appear excessive ]

Reference(s):
. 1st valgrind discovery
==11111== Conditional jump or move depends on uninitialised value(s)
==11111==    at 0x13425D: stat2proc (readproc.c:582)
==11111==    by 0x137436: look_up_our_self (readproc.c:1613)
==11111==    by 0x132196: fatal_proc_unmounted (pids.c:1388)
==11111==    by 0x11BA4D: before (top.c:3580)
==11111==    by 0x127E10: main (top.c:7173)
==11111==  Uninitialised value was created by a stack allocation
==11111==    at 0x132165: fatal_proc_unmounted (pids.c:1381)

. Jul, 2022 - fatal_proc_unmounted refactored
commit 52bd019d8c

. 2nd valgrind discovery
==22222== 16 bytes in 1 blocks are definitely lost
==22222==    by 0x4A0E60E: strdup (strdup.c:42)
==22222==    by 0x133D00: stat2proc (readproc.c:587)
==22222==    by 0x136E67: look_up_our_self (readproc.c:1613)
==22222==    by 0x131BC7: fatal_proc_unmounted (pids.c:1390)
==22222==    by 0x11B7C6: before (top.c:3580)
==22222==    by 0x127828: main (top.c:7173)

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-09-12 22:15:28 +10:00
..
include library: address an 'uninitialised value' VALGRIND bug 2022-09-12 22:15:28 +10:00
tests build-sys: Relocate library to library/ 2022-08-29 19:02:44 +10:00
.gitignore build-sys: Relocate library to library/ 2022-08-29 19:02:44 +10:00
COPYING build-sys: Relocate library to library/ 2022-08-29 19:02:44 +10:00
devname.c build-sys: Relocate library to library/ 2022-08-29 19:02:44 +10:00
diskstats.c build-sys: Relocate library to library/ 2022-08-29 19:02:44 +10:00
escape.c build-sys: Relocate library to library/ 2022-08-29 19:02:44 +10:00
libproc2.pc.in misc: Update pc file to new library name 2022-08-29 20:42:45 +10:00
libproc2.sym library: Rename to libproc2 2022-08-29 20:38:17 +10:00
meminfo.c build-sys: Relocate library to library/ 2022-08-29 19:02:44 +10:00
namespace.c build-sys: Relocate library to library/ 2022-08-29 19:02:44 +10:00
numa.c build-sys: Relocate library to library/ 2022-08-29 19:02:44 +10:00
pids.c library: address an 'uninitialised value' VALGRIND bug 2022-09-12 22:15:28 +10:00
pwcache.c build-sys: Relocate library to library/ 2022-08-29 19:02:44 +10:00
readproc.c library: address an 'uninitialised value' VALGRIND bug 2022-09-12 22:15:28 +10:00
slabinfo.c build-sys: Relocate library to library/ 2022-08-29 19:02:44 +10:00
stat.c build-sys: Relocate library to library/ 2022-08-29 19:02:44 +10:00
sysinfo.c build-sys: Relocate library to library/ 2022-08-29 19:02:44 +10:00
uptime.c build-sys: Relocate library to library/ 2022-08-29 19:02:44 +10:00
version.c build-sys: Relocate library to library/ 2022-08-29 19:02:44 +10:00
vmstat.c build-sys: Relocate library to library/ 2022-08-29 19:02:44 +10:00
wchan.c build-sys: Relocate library to library/ 2022-08-29 19:02:44 +10:00