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authorH.J. Lu <hjl.tools@gmail.com>2014-12-21 09:12:04 -0800
committerH.J. Lu <hjl.tools@gmail.com>2014-12-21 09:27:11 -0800
commit050f7298e1ecc39887c329037575ccd972071255 (patch)
tree3e4caaa9640efd7e9a7020943f932c426b29ba29 /sysdeps/x86_64/dl-tlsdesc.S
parent6df5547e9349f0e22cd4356c8ef517e97530ddd0 (diff)
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Add hidden __tls_get_addr/___tls_get_addr alias
__tls_get_addr/___tls_get_addr is always defined in ld.so.  There is
no need to call them via PLT inside ld.so.  This patch adds the hidden
__tls_get_addr/___tls_get_addr aliases and calls them directly from
_dl_tlsdesc_dynamic.  There is no need to set up the EBX register in
i386 _dl_tlsdesc_dynamic when calling the hidden ___tls_get_addr.

	* elf/dl-tls.c (__tls_get_addr): Provide the hidden definition
	if not defined.
	* sysdeps/i386/dl-tls.h (___tls_get_addr): Provide the hidden
	definition.
	* sysdeps/i386/dl-tlsdesc.S (_dl_tlsdesc_dynamic): Call the
	hidden ___tls_get_addr.
	* sysdeps/x86_64/dl-tlsdesc.S (_dl_tlsdesc_dynamic): Call the
	hidden __tls_get_addr.
	* sysdeps/generic/localplt.data (__tls_get_addr): Removed.
	* sysdeps/unix/sysv/linux/i386/localplt.data (___tls_get_addr):
	Likewise.
Diffstat (limited to 'sysdeps/x86_64/dl-tlsdesc.S')
-rw-r--r--sysdeps/x86_64/dl-tlsdesc.S2
1 files changed, 1 insertions, 1 deletions
diff --git a/sysdeps/x86_64/dl-tlsdesc.S b/sysdeps/x86_64/dl-tlsdesc.S
index 92e18a54c2..03f5ca494f 100644
--- a/sysdeps/x86_64/dl-tlsdesc.S
+++ b/sysdeps/x86_64/dl-tlsdesc.S
@@ -128,7 +128,7 @@ _dl_tlsdesc_dynamic:
 	movq	%r10, 40(%rsp)
 	movq	%r11, 48(%rsp)
 	/* %rdi already points to the tlsinfo data structure.  */
-	call	__tls_get_addr@PLT
+	call	HIDDEN_JUMPTARGET (__tls_get_addr)
 	movq	8(%rsp), %rdx
 	movq	16(%rsp), %rcx
 	movq	24(%rsp), %r8