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Add STB_GNU_UNIQUE symbol binding definition

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Red Hat created STB_GNU_UNIQUE to handle certain special cases relating
to dynamically loading C++ DSOs[1].

We don't (currently) have support for STB_GNU_UNIQUE, but ought to
reserve the value in ELFNN_ST_BIND. This will also be used by an
upcoming ELF Tool Chain import.

[1] https://www.redhat.com/archives/posix-c++-wg/2009-August/msg00002.html

MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
This commit is contained in:
emaste 2016-01-21 20:44:21 +00:00
parent 3e2da6e430
commit 965227c981
1 changed files with 3 additions and 2 deletions
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sys/sys/elf_common.h
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@ -753,8 +753,9 @@ typedef struct {
#define STB_LOCAL 0 /* Local symbol */ #define STB_LOCAL 0 /* Local symbol */
#define STB_GLOBAL 1 /* Global symbol */ #define STB_GLOBAL 1 /* Global symbol */
#define STB_WEAK 2 /* like global - lower precedence */ #define STB_WEAK 2 /* like global - lower precedence */
#define STB_LOOS 10 /* Reserved range for operating system */ #define STB_LOOS 10 /* Start of operating system reserved range. */
#define STB_HIOS 12 /* specific semantics. */ #define STB_GNU_UNIQUE 10 /* Unique symbol (GNU) */
#define STB_HIOS 12 /* End of operating system reserved range. */
#define STB_LOPROC 13 /* reserved range for processor */ #define STB_LOPROC 13 /* reserved range for processor */
#define STB_HIPROC 15 /* specific semantics. */ #define STB_HIPROC 15 /* specific semantics. */