diff options
| author | H.J. Lu <hjl.tools@gmail.com> | 2012-11-21 06:33:19 -0800 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2012-11-21 06:33:19 -0800 |
| commit | 7e1be741255c40a2d71ea7c888eff39a3aaa32e9 (patch) | |
| tree | c78a665d15bb6a1f22b63063f1f64545f351536d | |
| parent | 86fe56bbdece927de2b0c6f122493e97ad12937a (diff) | |
| download | glibc-7e1be741255c40a2d71ea7c888eff39a3aaa32e9.tar.gz | |
Check supported DF_1_XXX bits
| -rw-r--r-- | ChangeLog | 15 | ||||
| -rw-r--r-- | elf/elf.h | 9 | ||||
| -rw-r--r-- | elf/get-dynamic-info.h | 3 | ||||
| -rw-r--r-- | include/elf.h | 6 |
4 files changed, 33 insertions, 0 deletions
@@ -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> * sysdeps/unix/make-syscalls.sh: Document prefixes. @@ -798,6 +798,15 @@ typedef struct #define DF_1_ENDFILTEE 0x00004000 /* Filtee terminates filters search. */ #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_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. */ #define DTF_1_PARINIT 0x00000001 diff --git a/elf/get-dynamic-info.h b/elf/get-dynamic-info.h index ffac75f635..9e018de6d2 100644 --- a/elf/get-dynamic-info.h +++ b/elf/get-dynamic-info.h @@ -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; + /* 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) info[DT_BIND_NOW] = info[VERSYMIDX (DT_FLAGS_1)]; } diff --git a/include/elf.h b/include/elf.h index cdedd8598e..60658c617c 100644 --- a/include/elf.h +++ b/include/elf.h @@ -3,4 +3,10 @@ /* Some information which is not meant for the public and therefore not in <elf.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 |