diff options
Diffstat (limited to 'ldso/include/dl-defs.h')
| -rw-r--r-- | ldso/include/dl-defs.h | 49 |
1 files changed, 43 insertions, 6 deletions
diff --git a/ldso/include/dl-defs.h b/ldso/include/dl-defs.h index 791d068bb..bedfa977e 100644 --- a/ldso/include/dl-defs.h +++ b/ldso/include/dl-defs.h @@ -5,8 +5,8 @@ * GNU Lesser General Public License version 2.1 or later. */ -#ifndef _LD_DEFS_H -#define _LD_DEFS_H +#ifndef _DL_DEFS_H +#define _DL_DEFS_H #define FLAG_ANY -1 #define FLAG_TYPE_MASK 0x00ff @@ -72,6 +72,13 @@ typedef struct { #endif +#ifdef _LIBC +#ifndef __ARCH_HAS_NO_SHARED__ +/* arch specific defines */ +#include <dl-sysdep.h> +#endif +#endif + /* Provide a means for a port to pass additional arguments to the _dl_start function. */ #ifndef DL_START @@ -99,7 +106,7 @@ typedef struct { * from DL_START, so additional arguments passed to it may be referenced. */ #ifndef DL_BOOT_COMPUTE_DYN #define DL_BOOT_COMPUTE_DYN(DPNT, GOT, LOAD_ADDR) \ - ((DPNT) = ((ElfW(Dyn) *) DL_RELOC_ADDR(load_addr, got))) + ((DPNT) = ((ElfW(Dyn) *) DL_RELOC_ADDR(LOAD_ADDR, GOT))) #endif /* Initialize the location of the global offset table. This is only called @@ -179,6 +186,14 @@ typedef struct { #define DL_LOOKUP_ADDRESS(ADDRESS) (ADDRESS) #endif +/* On some architectures dladdr can't use st_size of all symbols this way. */ +#define DL_ADDR_SYM_MATCH(SYM_ADDR, SYM, MATCHSYM, ADDR) \ + ((ADDR) >= (SYM_ADDR) \ + && ((((SYM)->st_shndx == SHN_UNDEF || (SYM)->st_size == 0) \ + && (ADDR) == (SYM_ADDR)) \ + || (ADDR) < (SYM_ADDR) + (SYM)->st_size) \ + && (!(MATCHSYM) || MATCHSYM < (SYM_ADDR))) + /* Use this macro to convert a pointer to a function's entry point to * a pointer to function. The pointer is assumed to have already been * relocated. LOADADDR is passed because it may contain additional @@ -212,7 +227,7 @@ typedef struct { _dl_find_hash for this reloc TYPE. TPNT is the module in which the matching SYM was found. */ #ifndef DL_FIND_HASH_VALUE -# define DL_FIND_HASH_VALUE(TPNT, TYPE, SYM) (DL_RELOC_ADDR ((SYM)->st_value, (TPNT)->loadaddr)) +# define DL_FIND_HASH_VALUE(TPNT, TYPE, SYM) (DL_RELOC_ADDR ((TPNT)->loadaddr, (SYM)->st_value)) #endif /* Unmap all previously-mapped segments accumulated in LOADADDR. @@ -225,7 +240,7 @@ typedef struct { /* Similar to DL_LOADADDR_UNMAP, but used for libraries that have been dlopen()ed successfully, when they're dlclose()d. */ #ifndef DL_LIB_UNMAP -# define DL_LIB_UNMAP(LIB, LEN) (DL_LOADADDR_UNMAP ((LIB)->loadaddr, (LEN))) +# define DL_LIB_UNMAP(LIB, LEN) (DL_LOADADDR_UNMAP ((LIB)->mapaddr, (LEN))) #endif /* Define this to verify that a library named LIBNAME, whose ELF @@ -251,4 +266,26 @@ typedef struct { # define DL_MAP_SEGMENT(EPNT, PPNT, INFILE, FLAGS) 0 #endif -#endif /* _LD_DEFS_H */ +/* Define this to declare the library offset. */ +#ifndef DL_DEF_LIB_OFFSET +# define DL_DEF_LIB_OFFSET static unsigned long _dl_library_offset +#endif + +/* Define this to get the library offset. */ +#ifndef DL_GET_LIB_OFFSET +# define DL_GET_LIB_OFFSET() _dl_library_offset +#endif + +/* Define this to set the library offset as difference beetwen the mapped + library address and the smallest virtual address of the first PT_LOAD + segment. */ +#ifndef DL_SET_LIB_OFFSET +# define DL_SET_LIB_OFFSET(offset) (_dl_library_offset = (offset)) +#endif + +/* Define this to get the real object's runtime address. */ +#ifndef DL_GET_RUN_ADDR +# define DL_GET_RUN_ADDR(loadaddr, mapaddr) (mapaddr) +#endif + +#endif /* _DL_DEFS_H */ |