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add comments about magic numbers

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Ian Lance Taylor
1996-07-18 19:49:56 +00:00
parent a8a3d83af0
commit f4fcd63fa0
1 changed files with 7 additions and 1 deletions
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8
include/elf/common.h
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@ -92,7 +92,11 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* If it is necessary to assign new unofficial EM_* values, please pick large /* If it is necessary to assign new unofficial EM_* values, please pick large
random numbers (0x8523, 0xa7f2, etc.) to minimize the chances of collision random numbers (0x8523, 0xa7f2, etc.) to minimize the chances of collision
with official or non-GNU unofficial values. */ with official or non-GNU unofficial values.
NOTE: Do not just increment the most recent number by one.
Somebody else somewhere will do exactly the same thing, and you
will have a collision. Instead, pick a random number. */
/* Cygnus PowerPC ELF backend. Written in the absence of an ABI. */ /* Cygnus PowerPC ELF backend. Written in the absence of an ABI. */
#define EM_CYGNUS_POWERPC 0x9025 #define EM_CYGNUS_POWERPC 0x9025
@ -113,6 +117,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#define EM_CYGNUS_D10V 0x9027 #define EM_CYGNUS_D10V 0x9027
/* end-sanitize-d10v */ /* end-sanitize-d10v */
/* See the above comment before you add a new EM_* value here. */
/* Values for e_version */ /* Values for e_version */
#define EV_NONE 0 /* Invalid ELF version */ #define EV_NONE 0 /* Invalid ELF version */