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-rw-r--r--sysdeps/aarch64/dl-tlsdesc.S203
1 files changed, 0 insertions, 203 deletions
diff --git a/sysdeps/aarch64/dl-tlsdesc.S b/sysdeps/aarch64/dl-tlsdesc.S
index 3b2da62f39..70550c7ce0 100644
--- a/sysdeps/aarch64/dl-tlsdesc.S
+++ b/sysdeps/aarch64/dl-tlsdesc.S
@@ -80,30 +80,6 @@ _dl_tlsdesc_return:
 	cfi_endproc
 	.size	_dl_tlsdesc_return, .-_dl_tlsdesc_return
 
-	/* Same as _dl_tlsdesc_return but with synchronization for
-	   lazy relocation.
-	   Prototype:
-	   _dl_tlsdesc_return_lazy (tlsdesc *) ;
-	 */
-	.hidden _dl_tlsdesc_return_lazy
-	.global	_dl_tlsdesc_return_lazy
-	.type	_dl_tlsdesc_return_lazy,%function
-	cfi_startproc
-	.align 2
-_dl_tlsdesc_return_lazy:
-	/* The ldar here happens after the load from [x0] at the call site
-	   (that is generated by the compiler as part of the TLS access ABI),
-	   so it reads the same value (this function is the final value of
-	   td->entry) and thus it synchronizes with the release store to
-	   td->entry in _dl_tlsdesc_resolve_rela_fixup ensuring that the load
-	   from [x0,#PTR_SIZE] here happens after the initialization of td->arg. */
-	DELOUSE (0)
-	ldar	PTR_REG (zr), [x0]
-	ldr	PTR_REG (0), [x0, #PTR_SIZE]
-	RET
-	cfi_endproc
-	.size	_dl_tlsdesc_return_lazy, .-_dl_tlsdesc_return_lazy
-
 	/* Handler for undefined weak TLS symbols.
 	   Prototype:
 	   _dl_tlsdesc_undefweak (tlsdesc *);
@@ -121,14 +97,7 @@ _dl_tlsdesc_return_lazy:
 _dl_tlsdesc_undefweak:
 	str	x1, [sp, #-16]!
 	cfi_adjust_cfa_offset (16)
-	/* The ldar here happens after the load from [x0] at the call site
-	   (that is generated by the compiler as part of the TLS access ABI),
-	   so it reads the same value (this function is the final value of
-	   td->entry) and thus it synchronizes with the release store to
-	   td->entry in _dl_tlsdesc_resolve_rela_fixup ensuring that the load
-	   from [x0,#8] here happens after the initialization of td->arg.  */
 	DELOUSE (0)
-	ldar	PTR_REG (zr), [x0]
 	ldr	PTR_REG (0), [x0, #PTR_SIZE]
 	mrs	x1, tpidr_el0
 	sub	PTR_REG (0), PTR_REG (0), PTR_REG (1)
@@ -192,13 +161,6 @@ _dl_tlsdesc_dynamic:
 	cfi_rel_offset (x4, 32+24)
 
 	mrs	x4, tpidr_el0
-	/* The ldar here happens after the load from [x0] at the call site
-	   (that is generated by the compiler as part of the TLS access ABI),
-	   so it reads the same value (this function is the final value of
-	   td->entry) and thus it synchronizes with the release store to
-	   td->entry in _dl_tlsdesc_resolve_rela_fixup ensuring that the load
-	   from [x0,#PTR_SIZE] here happens after the initialization of td->arg.  */
-	ldar	PTR_REG (zr), [x0]
 	ldr	PTR_REG (1), [x0,#TLSDESC_ARG]
 	ldr	PTR_REG (0), [x4,#TCBHEAD_DTV]
 	ldr	PTR_REG (3), [x1,#TLSDESC_GEN_COUNT]
@@ -276,168 +238,3 @@ _dl_tlsdesc_dynamic:
 	.size	_dl_tlsdesc_dynamic, .-_dl_tlsdesc_dynamic
 # undef NSAVEXREGPAIRS
 #endif
-
-	/* This function is a wrapper for a lazy resolver for TLS_DESC
-	   RELA relocations.
-	   When the actual resolver returns, it will have adjusted the
-	   TLS descriptor such that we can tail-call it for it to return
-	   the TP offset of the symbol.  */
-
-	.hidden _dl_tlsdesc_resolve_rela
-	.global	_dl_tlsdesc_resolve_rela
-	.type	_dl_tlsdesc_resolve_rela,%function
-	cfi_startproc
-	.align 2
-_dl_tlsdesc_resolve_rela:
-#define	NSAVEXREGPAIRS 9
-	/* The tlsdesc PLT entry pushes x2 and x3 to the stack.  */
-	cfi_adjust_cfa_offset (16)
-	cfi_rel_offset (x2, 0)
-	cfi_rel_offset (x3, 8)
-	stp	x29, x30, [sp, #-(32+16*NSAVEXREGPAIRS)]!
-	cfi_adjust_cfa_offset (32+16*NSAVEXREGPAIRS)
-	cfi_rel_offset (x29, 0)
-	cfi_rel_offset (x30, 8)
-	mov	x29, sp
-	stp	 x1,  x4, [sp, #32+16*0]
-	stp	 x5,  x6, [sp, #32+16*1]
-	stp	 x7,  x8, [sp, #32+16*2]
-	stp	 x9, x10, [sp, #32+16*3]
-	stp	x11, x12, [sp, #32+16*4]
-	stp	x13, x14, [sp, #32+16*5]
-	stp	x15, x16, [sp, #32+16*6]
-	stp	x17, x18, [sp, #32+16*7]
-	str	x0,       [sp, #32+16*8]
-	cfi_rel_offset (x1, 32)
-	cfi_rel_offset (x4, 32+8)
-	cfi_rel_offset (x5, 32+16)
-	cfi_rel_offset (x6, 32+16+8)
-	cfi_rel_offset (x7, 32+16*2)
-	cfi_rel_offset (x8, 32+16*2+8)
-	cfi_rel_offset (x9, 32+16*3)
-	cfi_rel_offset (x10, 32+16*3+8)
-	cfi_rel_offset (x11, 32+16*4)
-	cfi_rel_offset (x12, 32+16*4+8)
-	cfi_rel_offset (x13, 32+16*5)
-	cfi_rel_offset (x14, 32+16*5+8)
-	cfi_rel_offset (x15, 32+16*6)
-	cfi_rel_offset (x16, 32+16*6+8)
-	cfi_rel_offset (x17, 32+16*7)
-	cfi_rel_offset (x18, 32+16*7+8)
-	cfi_rel_offset (x0, 32+16*8)
-
-	SAVE_Q_REGISTERS
-
-	DELOUSE (3)
-	ldr	PTR_REG (1), [x3, #PTR_SIZE]
-	bl	_dl_tlsdesc_resolve_rela_fixup
-
-	RESTORE_Q_REGISTERS
-
-	ldr	x0, [sp, #32+16*8]
-	DELOUSE (0)
-	ldr	PTR_REG (1), [x0]
-	blr	x1
-
-	ldp	 x1,  x4, [sp, #32+16*0]
-	ldp	 x5,  x6, [sp, #32+16*1]
-	ldp	 x7,  x8, [sp, #32+16*2]
-	ldp	 x9, x10, [sp, #32+16*3]
-	ldp	x11, x12, [sp, #32+16*4]
-	ldp	x13, x14, [sp, #32+16*5]
-	ldp	x15, x16, [sp, #32+16*6]
-	ldp	x17, x18, [sp, #32+16*7]
-	ldp	x29, x30, [sp], #(32+16*NSAVEXREGPAIRS)
-	cfi_adjust_cfa_offset (-32-16*NSAVEXREGPAIRS)
-	cfi_restore (x29)
-	cfi_restore (x30)
-	ldp	x2, x3, [sp], #16
-	cfi_adjust_cfa_offset (-16)
-	RET
-#undef NSAVEXREGPAIRS
-	cfi_endproc
-	.size	_dl_tlsdesc_resolve_rela, .-_dl_tlsdesc_resolve_rela
-
-	/* This function is a placeholder for lazy resolving of TLS
-	relocations.  Once some thread starts resolving a TLS
-	relocation, it sets up the TLS descriptor to use this
-	resolver, such that other threads that would attempt to
-	resolve it concurrently may skip the call to the original lazy
-	resolver and go straight to a condition wait.
-
-	When the actual resolver returns, it will have adjusted the
-	TLS descriptor such that we can tail-call it for it to return
-	the TP offset of the symbol.  */
-
-	.hidden _dl_tlsdesc_resolve_hold
-	.global	_dl_tlsdesc_resolve_hold
-	.type	_dl_tlsdesc_resolve_hold,%function
-	cfi_startproc
-	.align 2
-_dl_tlsdesc_resolve_hold:
-#define	NSAVEXREGPAIRS 10
-1:
-	stp	x29, x30, [sp, #-(32+16*NSAVEXREGPAIRS)]!
-	cfi_adjust_cfa_offset (32+16*NSAVEXREGPAIRS)
-	cfi_rel_offset (x29, 0)
-	cfi_rel_offset (x30, 8)
-	mov	x29, sp
-	stp	 x1,  x2, [sp, #32+16*0]
-	stp	 x3,  x4, [sp, #32+16*1]
-	stp	 x5,  x6, [sp, #32+16*2]
-	stp	 x7,  x8, [sp, #32+16*3]
-	stp	 x9, x10, [sp, #32+16*4]
-	stp	x11, x12, [sp, #32+16*5]
-	stp	x13, x14, [sp, #32+16*6]
-	stp	x15, x16, [sp, #32+16*7]
-	stp	x17, x18, [sp, #32+16*8]
-	str	x0,       [sp, #32+16*9]
-	cfi_rel_offset (x1, 32)
-	cfi_rel_offset (x2, 32+8)
-	cfi_rel_offset (x3, 32+16)
-	cfi_rel_offset (x4, 32+16+8)
-	cfi_rel_offset (x5, 32+16*2)
-	cfi_rel_offset (x6, 32+16*2+8)
-	cfi_rel_offset (x7, 32+16*3)
-	cfi_rel_offset (x8, 32+16*3+8)
-	cfi_rel_offset (x9, 32+16*4)
-	cfi_rel_offset (x10, 32+16*4+8)
-	cfi_rel_offset (x11, 32+16*5)
-	cfi_rel_offset (x12, 32+16*5+8)
-	cfi_rel_offset (x13, 32+16*6)
-	cfi_rel_offset (x14, 32+16*6+8)
-	cfi_rel_offset (x15, 32+16*7)
-	cfi_rel_offset (x16, 32+16*7+8)
-	cfi_rel_offset (x17, 32+16*8)
-	cfi_rel_offset (x18, 32+16*8+8)
-	cfi_rel_offset (x0, 32+16*9)
-
-	SAVE_Q_REGISTERS
-
-	adr	x1, 1b
-	bl	_dl_tlsdesc_resolve_hold_fixup
-
-	RESTORE_Q_REGISTERS
-
-	ldr	x0, [sp, #32+16*9]
-	DELOUSE (0)
-	ldr	PTR_REG (1), [x0]
-	blr	x1
-
-	ldp	 x1,  x2, [sp, #32+16*0]
-	ldp	 x3,  x4, [sp, #32+16*1]
-	ldp	 x5,  x6, [sp, #32+16*2]
-	ldp	 x7,  x8, [sp, #32+16*3]
-	ldp	 x9, x10, [sp, #32+16*4]
-	ldp	x11, x12, [sp, #32+16*5]
-	ldp	x13, x14, [sp, #32+16*6]
-	ldp	x15, x16, [sp, #32+16*7]
-	ldp	x17, x18, [sp, #32+16*8]
-	ldp	x29, x30, [sp], #(32+16*NSAVEXREGPAIRS)
-	cfi_adjust_cfa_offset (-32-16*NSAVEXREGPAIRS)
-	cfi_restore (x29)
-	cfi_restore (x30)
-	RET
-	cfi_endproc
-	.size	_dl_tlsdesc_resolve_hold, .-_dl_tlsdesc_resolve_hold
-#undef NSAVEXREGPAIRS
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-09-20 01:42:52 +0000