Commit 53c2bd67 authored by наб's avatar наб Committed by Greg Kroah-Hartman
Browse files

a.out: remove define-only CMAGIC, previously magic number 



The last user was removed in 5.1 in
commit 08300f44 ("a.out: remove core dumping support")
but this is part of the UAPI headers, so this may want to either wait
until a.out is removed entirely, or be removed from the magic number doc
and silently remain in the header

A cursory glance on DCS didn't show any user code actually using this
value

Found with
grep MAGIC Documentation/process/magic-number.rst | while read -r mag _;
do git grep -wF "$mag"  | grep -ve '^Documentation.*magic-number.rst:' \
-qe ':#define '"$mag" || git grep -wF "$mag" | while IFS=: read -r f _;
do sed -i '/\b'"$mag"'\b/d' "$f"; done ; done

Signed-off-by: default avatarAhelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Link: https://lore.kernel.org/r/9cbea062df7125ef43e2e0b2a67ede6ad1c5f27e.1663280877.git.nabijaczleweli@nabijaczleweli.xyz


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 766c5a3e

Documentation/process/magic-number.rst

+0 −1
Original line number Diff line number Diff line
@@ -69,7 +69,6 @@ Changelog:: 
Magic Name            Number           Structure                File

===================== ================ ======================== ==========================================

PG_MAGIC              'P'              pg_{read,write}_hdr      ``include/linux/pg.h``

CMAGIC                0x0111           user                     ``include/linux/a.out.h``

HDLC_MAGIC            0x239e           n_hdlc                   ``drivers/char/n_hdlc.c``

APM_BIOS_MAGIC        0x4101           apm_user                 ``arch/x86/kernel/apm_32.c``

FASYNC_MAGIC          0x4601           fasync_struct            ``include/linux/fs.h``

Documentation/translations/it_IT/process/magic-number.rst

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Original line number Diff line number Diff line
@@ -75,7 +75,6 @@ Registro dei cambiamenti:: 
Nome magico           Numero           Struttura                File

===================== ================ ======================== ==========================================

PG_MAGIC              'P'              pg_{read,write}_hdr      ``include/linux/pg.h``

CMAGIC                0x0111           user                     ``include/linux/a.out.h``

HDLC_MAGIC            0x239e           n_hdlc                   ``drivers/char/n_hdlc.c``

APM_BIOS_MAGIC        0x4101           apm_user                 ``arch/x86/kernel/apm_32.c``

FASYNC_MAGIC          0x4601           fasync_struct            ``include/linux/fs.h``

Documentation/translations/zh_CN/process/magic-number.rst

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Original line number Diff line number Diff line
@@ -58,7 +58,6 @@ Linux 魔术数 
魔术数名              数字             结构                     文件

===================== ================ ======================== ==========================================

PG_MAGIC              'P'              pg_{read,write}_hdr      ``include/linux/pg.h``

CMAGIC                0x0111           user                     ``include/linux/a.out.h``

HDLC_MAGIC            0x239e           n_hdlc                   ``drivers/char/n_hdlc.c``

APM_BIOS_MAGIC        0x4101           apm_user                 ``arch/x86/kernel/apm_32.c``

FASYNC_MAGIC          0x4601           fasync_struct            ``include/linux/fs.h``

Documentation/translations/zh_TW/process/magic-number.rst

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Original line number Diff line number Diff line
@@ -61,7 +61,6 @@ Linux 魔術數 
魔術數名              數字             結構                     文件

===================== ================ ======================== ==========================================

PG_MAGIC              'P'              pg_{read,write}_hdr      ``include/linux/pg.h``

CMAGIC                0x0111           user                     ``include/linux/a.out.h``

HDLC_MAGIC            0x239e           n_hdlc                   ``drivers/char/n_hdlc.c``

APM_BIOS_MAGIC        0x4101           apm_user                 ``arch/x86/kernel/apm_32.c``

FASYNC_MAGIC          0x4601           fasync_struct            ``include/linux/fs.h``

include/uapi/linux/a.out.h

+0 −3
Original line number Diff line number Diff line
@@ -70,9 +70,6 @@ enum machine_type { 
   The first page is unmapped to help trap NULL pointer references */

#define QMAGIC 0314



/* Code indicating core file.  */

#define CMAGIC 0421



#if !defined (N_BADMAG)

#define N_BADMAG(x)	  (N_MAGIC(x) != OMAGIC		\

			&& N_MAGIC(x) != NMAGIC		\