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Call x86-64 __setcontext directly 

Since x86-64 __start_context calls the internal __setcontext:

5089: 00000000000417e0   145 FUNC    LOCAL  DEFAULT   13 __setcontext

it should call __setcontext directly.

	* sysdeps/unix/sysv/linux/x86_64/__start_context.S
	(__start_context): Call __setcontext directly.
This commit is contained in:
H.J. Lu 2016-03-01 16:55:36 -08:00
parent dacc1a23d3
commit 521266a819
2 changed files with 6 additions and 1 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2016-03-01 H.J. Lu <hongjiu.lu@intel.com>
* sysdeps/unix/sysv/linux/x86_64/__start_context.S
(__start_context): Call __setcontext directly.
2016-02-26 Joseph Myers <joseph@codesourcery.com> 2016-02-26 Joseph Myers <joseph@codesourcery.com>
* sysdeps/unix/sysv/linux/alpha/kernel-features.h * sysdeps/unix/sysv/linux/alpha/kernel-features.h

2
sysdeps/unix/sysv/linux/x86_64/__start_context.S
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@ -36,7 +36,7 @@ ENTRY(__start_context)
testq %rdi, %rdi testq %rdi, %rdi
je 2f /* If it is zero exit. */ je 2f /* If it is zero exit. */
call JUMPTARGET(__setcontext) call __setcontext
/* If this returns (which can happen if the syscall fails) we'll /* If this returns (which can happen if the syscall fails) we'll
exit the program with the return error value (-1). */ exit the program with the return error value (-1). */
movq %rax,%rdi movq %rax,%rdi