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ld.so: Replace (&bootstrap_map) with BOOTSTRAP_MAP

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(&_dl_main_map) is used instead of (&bootstrap_map) to bootstrap static
PIE.  Define BOOTSTRAP_MAP with (&_dl_main_map) to avoid hardcode to
(&bootstrap_map).

	* elf/rtld.c (BOOTSTRAP_MAP): New.
	(RESOLVE_MAP): Replace (&bootstrap_map) with BOOTSTRAP_MAP.
	* sysdeps/hppa/dl-machine.h (ELF_MACHINE_BEFORE_RTLD_RELOC):
	Likewise.
	* sysdeps/ia64/dl-machine.h (ELF_MACHINE_BEFORE_RTLD_RELOC):
	Likewise.
	* sysdeps/mips/dl-machine.h (ELF_MACHINE_BEFORE_RTLD_RELOC):
	Likewise.
This commit is contained in:
H.J. Lu 2017-10-03 01:55:00 -07:00
parent 3d1870fa33
commit b8818ab592
5 changed files with 16 additions and 4 deletions
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11
ChangeLog
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@ -1,3 +1,14 @@
2017-10-03 H.J. Lu <hongjiu.lu@intel.com>
* elf/rtld.c (BOOTSTRAP_MAP): New.
(RESOLVE_MAP): Replace (&bootstrap_map) with BOOTSTRAP_MAP.
* sysdeps/hppa/dl-machine.h (ELF_MACHINE_BEFORE_RTLD_RELOC):
Likewise.
* sysdeps/ia64/dl-machine.h (ELF_MACHINE_BEFORE_RTLD_RELOC):
Likewise.
* sysdeps/mips/dl-machine.h (ELF_MACHINE_BEFORE_RTLD_RELOC):
Likewise.
2017-10-03 Samuel Thibault <samuel.thibault@ens-lyon.org>
* include/libc-symbols.h [NO_RTLD_HIDDEN] (rtld_hidden_proto,

3
elf/rtld.c
View File

@ -454,7 +454,8 @@ _dl_start (void *arg)
Since ld.so must not have any undefined symbols the result
is trivial: always the map of ld.so itself. */
#define RTLD_BOOTSTRAP
#define RESOLVE_MAP(sym, version, flags) (&bootstrap_map)
#define BOOTSTRAP_MAP (&bootstrap_map)
#define RESOLVE_MAP(sym, version, flags) BOOTSTRAP_MAP
#include "dynamic-link.h"
if (HP_TIMING_INLINE && HP_SMALL_TIMING_AVAIL)

2
sysdeps/hppa/dl-machine.h
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@ -62,7 +62,7 @@ __hppa_init_bootstrap_fdesc_table (struct link_map *map)
}
#define ELF_MACHINE_BEFORE_RTLD_RELOC(dynamic_info) \
__hppa_init_bootstrap_fdesc_table (&bootstrap_map); \
__hppa_init_bootstrap_fdesc_table (BOOTSTRAP_MAP); \
_dl_fptr_init();
/* Return nonzero iff ELF header is compatible with the running host. */

2
sysdeps/ia64/dl-machine.h
View File

@ -45,7 +45,7 @@ __ia64_init_bootstrap_fdesc_table (struct link_map *map)
}
#define ELF_MACHINE_BEFORE_RTLD_RELOC(dynamic_info) \
__ia64_init_bootstrap_fdesc_table (&bootstrap_map);
__ia64_init_bootstrap_fdesc_table (BOOTSTRAP_MAP);
/* Return nonzero iff ELF header is compatible with the running host. */
static inline int __attribute__ ((unused))

2
sysdeps/mips/dl-machine.h
View File

@ -195,7 +195,7 @@ elf_machine_load_address (void)
fiddles with global data. */
#define ELF_MACHINE_BEFORE_RTLD_RELOC(dynamic_info) \
do { \
struct link_map *map = &bootstrap_map; \
struct link_map *map = BOOTSTRAP_MAP; \
ElfW(Sym) *sym; \
ElfW(Addr) *got; \
int i, n; \