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Check supported DF_1_XXX bits

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This commit is contained in:
H.J. Lu
2012-11-21 06:33:19 -08:00
parent 86fe56bbde
commit 7e1be74125
4 changed files with 33 additions and 0 deletions
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15
ChangeLog
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@ -1,3 +1,18 @@
2012-11-21 H.J. Lu <hongjiu.lu@intel.com>
* elf/elf.h (DF_1_NODIRECT): New macro.
(DF_1_IGNMULDEF): Likewise.
(DF_1_NOKSYMS): Likewise.
(DF_1_NOHDR): Likewise.
(DF_1_EDITED): Likewise.
(DF_1_NORELOC): Likewise.
(DF_1_SYMINTPOSE): Likewise.
(DF_1_GLOBAUDIT): Likewise.
(DF_1_SINGLETON): Likewise.
* elf/get-dynamic-info.h (elf_get_dynamic_info): Assert
DT_1_SUPPORTED_MASK bits.
* include/elf.h (DT_1_SUPPORTED_MASK): New macro.
2012-11-20 Carlos O'Donell <carlos_odonell@mentor.com> 2012-11-20 Carlos O'Donell <carlos_odonell@mentor.com>
* sysdeps/unix/make-syscalls.sh: Document prefixes. * sysdeps/unix/make-syscalls.sh: Document prefixes.

9
elf/elf.h
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@ -798,6 +798,15 @@ typedef struct
#define DF_1_ENDFILTEE 0x00004000 /* Filtee terminates filters search. */ #define DF_1_ENDFILTEE 0x00004000 /* Filtee terminates filters search. */
#define DF_1_DISPRELDNE 0x00008000 /* Disp reloc applied at build time. */ #define DF_1_DISPRELDNE 0x00008000 /* Disp reloc applied at build time. */
#define DF_1_DISPRELPND 0x00010000 /* Disp reloc applied at run-time. */ #define DF_1_DISPRELPND 0x00010000 /* Disp reloc applied at run-time. */
#define DF_1_NODIRECT 0x00020000 /* Object has no-direct binding. */
#define DF_1_IGNMULDEF 0x00040000
#define DF_1_NOKSYMS 0x00080000
#define DF_1_NOHDR 0x00100000
#define DF_1_EDITED 0x00200000 /* Object is modified after built. */
#define DF_1_NORELOC 0x00400000
#define DF_1_SYMINTPOSE 0x00800000 /* Object has individual interposers. */
#define DF_1_GLOBAUDIT 0x01000000 /* Global auditin required. */
#define DF_1_SINGLETON 0x02000000 /* Singleton symbols are used. */
/* Flags for the feature selection in DT_FEATURE_1. */ /* Flags for the feature selection in DT_FEATURE_1. */
#define DTF_1_PARINIT 0x00000001 #define DTF_1_PARINIT 0x00000001

3
elf/get-dynamic-info.h
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@ -151,6 +151,9 @@ elf_get_dynamic_info (struct link_map *l, ElfW(Dyn) *temp)
{ {
l->l_flags_1 = info[VERSYMIDX (DT_FLAGS_1)]->d_un.d_val; l->l_flags_1 = info[VERSYMIDX (DT_FLAGS_1)]->d_un.d_val;
/* Only DT_1_SUPPORTED_MASK bits are allowed. */
assert ((l->l_flags_1 & ~DT_1_SUPPORTED_MASK) == 0);
if (l->l_flags_1 & DF_1_NOW) if (l->l_flags_1 & DF_1_NOW)
info[DT_BIND_NOW] = info[VERSYMIDX (DT_FLAGS_1)]; info[DT_BIND_NOW] = info[VERSYMIDX (DT_FLAGS_1)];
} }

6
include/elf.h
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@ -3,4 +3,10 @@
/* Some information which is not meant for the public and therefore not /* Some information which is not meant for the public and therefore not
in <elf.h>. */ in <elf.h>. */
# include <dl-dtprocnum.h> # include <dl-dtprocnum.h>
# ifdef DT_1_SUPPORTED_MASK
# error DT_1_SUPPORTED_MASK is defined!
# endif
# define DT_1_SUPPORTED_MASK \
(DF_1_NOW | DF_1_NODELETE | DF_1_INITFIRST | DF_1_NOOPEN \
| DF_1_ORIGIN | DF_1_NODEFLIB)
#endif #endif