https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69429
Bug ID: 69429
Summary: gcc create sparse exec/libs
Product: gcc
Version: 4.9.3
Status: UNCONFIRMED
Severity: major
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: joakim.tjernlund at transmode dot se
Target Milestone: ---
When building small libs/exec on ppc32 I usally get sparse files like so:
ls -lsh | sort -n
....
64K -rwxr-xr-x 1 jocke users 68K Jan 22 11:20 mgmt_alarmd*
64K -rwxr-xr-x 1 jocke users 67K Jan 22 11:20 ne_memd*
56K -rwxr-xr-x 1 jocke users 67K Jan 22 11:20 cp_dummy*
56K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 mgmt_pmd*
48K -rwxr-xr-x 1 jocke users 69K Jan 22 11:20 ntpdate*
48K -rwxr-xr-x 1 jocke users 67K Jan 22 11:20 ne_rc*
48K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 relayd*
48K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 ntptimeset*
44K -rwxr-xr-x 1 jocke users 67K Jan 22 11:20 mgmt_backup_tftpd*
44K -rwxr-xr-x 1 jocke users 67K Jan 22 11:20 emxp2_cm_bl_shell*
44K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 msntp*
44K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 cp_hw_i2c*
36K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 te_monitor*
36K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 mgmt_invd*
36K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 chat*
36K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 cgi-fcgi*
32K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 ne_db_mgr*
32K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 dummy_hw_bl*
32K -rwxr-xr-x 1 jocke users 29K Jan 22 11:19 net-snmp-config*
28K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 tosv_server*
28K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 te_log*
28K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 ntptrace*
28K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 hwdata*
24K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 te*
24K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 heat_test*
24K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 alib_psupd*
24K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 alib_memsupd*
20K -rwxr-xr-x 1 jocke users 68K Jan 22 11:20 ntptime*
20K -rwxr-xr-x 1 jocke users 68K Jan 22 11:20 dumpicn*
20K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 te_server*
20K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 mgmt_named*
16K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 up_util_test_pmem*
16K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 tosv_timer*
16K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 tosv_test*
16K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 tosv_supv*
16K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 ne_rc_supv*
16K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 ne_rc_memeater*
16K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 ne_rc_load*
16K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 ne_mem_ram_test*
16K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 alib_test_psup*
16K -rwxr-xr-x 1 jocke users 16K Jan 22 11:15 convert_backup*
15M -rwxr-xr-x 1 jocke users 15M Jan 22 11:20 emxp2_hw_bl*
12K -rwxr-xr-x 1 jocke users 9.0K Jan 22 11:18 swu_prepost_script.sh*
12K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 tickadj*
12K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 tclsh8.4*
12K -rwxr-xr-x 1 jocke users 66K Jan 22 11:20 genkeys*
downgraded binutils from 2.25.1 to 2.24 but the problem remains.
Using earlier toolchain I can see that this extra sparse space
is just garbage because there the files are much smaller, some 12-16KB
This is a huge problem as these sparse file are packaged into a
tar file and when unpacked they loose the sparse and will expand to 66K on
disk and fill up the my small FS.
