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Remove @PLT from "call _dl_init@PLT" in _dl_start_user 

_dl_start_user in ld.so calls the local function _dl_init.  There is no
need to go through PLT.

	* sysdeps/i386/dl-machine.h (_dl_start_user): Remove @PLT
	from "call _dl_init@PLT".
	* sysdeps/x86_64/dl-machine.h (_dl_start_user): Likewise.
	from "call _dl_init@PLT".
This commit is contained in:
H.J. Lu 2014-12-21 05:27:31 -08:00
parent 98fe149e34
commit 7432d613cd
3 changed files with 9 additions and 2 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
2014-12-21 H.J. Lu <hongjiu.lu@intel.com>
* sysdeps/i386/dl-machine.h (_dl_start_user): Remove @PLT
from "call _dl_init@PLT".
* sysdeps/x86_64/dl-machine.h (_dl_start_user): Likewise.
from "call _dl_init@PLT".
2014-12-21 Anders Kaseorg <andersk@mit.edu>
* manual/search.texi: (Array Sort Function): Clarify stable sorting

2
sysdeps/i386/dl-machine.h
View File

@ -221,7 +221,7 @@ _dl_start_user:\n\
# Clear %ebp, so that even constructors have terminated backchain.\n\
xorl %ebp, %ebp\n\
# Call the function to run the initializers.\n\
call _dl_init@PLT\n\
call _dl_init\n\
# Pass our finalizer function to the user in %edx, as per ELF ABI.\n\
leal _dl_fini@GOTOFF(%ebx), %edx\n\
# Restore %esp _start expects.\n\

2
sysdeps/x86_64/dl-machine.h
View File

@ -156,7 +156,7 @@ _dl_start_user:\n\
# Clear %rbp to mark outermost frame obviously even for constructors.\n\
xorl %ebp, %ebp\n\
# Call the function to run the initializers.\n\
call _dl_init@PLT\n\
call _dl_init\n\
# Pass our finalizer function to the user in %rdx, as per ELF ABI.\n\
leaq _dl_fini(%rip), %rdx\n\
# And make sure %rsp points to argc stored on the stack.\n\