Fix bugs in sparc PLT profiling register management, and add sparc sotruss support.

	* sysdeps/sparc/sparc32/dl-machine.h (elf_machine_rela): Protect local
	variables with appropriate CPP guards.
	* sysdeps/sparc/sparc32/dl-trampoline.S: Propagate the stack_ptr from the
	frame pointer, not the stack pointer.  Correct layout comments.  Fix test
	on resulting framesize and the management of the outregs buffer for pltexit.
	Preserve floating point return values across _dl_call_pltexit call.
	* sysdeps/sparc/sparc64/dl-trampoline.S: Fix test on resulting
	framesize and the management of the outregs buffer for pltexit.
	Preserve floating point return values across _dl_call_pltexit
	call.
	* elf/sotruss-lib.c (la_sparc32_gnu_pltenter, la_sparc64_gnu_pltenter,
	la_sparc32_gnu_pltexit, la_sparc64_gnu_pltexit): New functions.
	(print_exit): Fix format string for return register value.

1 files changed, 21 insertions, 22 deletions

diff --git a/sysdeps/sparc/sparc64/dl-trampoline.S b/sysdeps/sparc/sparc64/dl-trampoline.S
index 7caece3430..7d74fd0af8 100644
--- a/sysdeps/sparc/sparc64/dl-trampoline.S
+++ b/sysdeps/sparc/sparc64/dl-trampoline.S
@@ -1,5 +1,5 @@
 /* PLT trampolines.  Sparc 64-bit version.
-   Copyright (C) 2005 Free Software Foundation, Inc.
+   Copyright (C) 2005, 2012 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -158,8 +158,11 @@ _dl_profile_save_regs:
 _dl_profile_invoke:
 	cfi_startproc
 
-	sub	%sp, %l0, %sp
-1:
+	add	%l0, 7, %l0
+	andn	%l0, 7, %l0
+	add	%l0, (8 * 8), %g1
+
+	sub	%sp, %g1, %sp
 	srlx	%l0, 3, %l7
 	mov	%o0, %l1
 	mov	%i0, %o0
@@ -169,7 +172,8 @@ _dl_profile_invoke:
 	mov	%i4, %o4
 	mov	%i5, %o5
 	add	%fp, STACK_BIAS, %l2
-	add	%sp, STACK_BIAS, %l3
+	brz	%l0, 2f
+	 add	%sp, STACK_BIAS, %l3
 1:	ldx	[%l2], %l4
 	add	%l2, 0x8, %l2
 	subcc	%l7, 1, %l7
@@ -177,7 +181,7 @@ _dl_profile_invoke:
 	bne,pt	%xcc, 1b
 	 add	%l3, 0x8, %l3
 
-	jmpl	%l1, %o7
+2:	jmpl	%l1, %o7
 	 nop
 
 	stx	%o0, [%sp + STACK_BIAS + (16 * 8)]
@@ -191,15 +195,18 @@ _dl_profile_invoke:
 
 	mov	%l5, %o0
 	mov	%l6, %o1
-	add	%sp, %l0, %o2
-	add	%sp, STACK_BIAS + (16 * 8), %o3
+	add	%sp, STACK_BIAS + (24 * 8), %o2
 	call	_dl_call_pltexit
-	 add	%o2, STACK_BIAS, %o2
+	 add	%sp, STACK_BIAS + (16 * 8), %o3
 
 	ldx	[%sp + STACK_BIAS + (16 * 8)], %i0
 	ldx	[%sp + STACK_BIAS + (17 * 8)], %i1
 	ldx	[%sp + STACK_BIAS + (18 * 8)], %i2
 	ldx	[%sp + STACK_BIAS + (19 * 8)], %i3
+	ldd	[%sp + STACK_BIAS + (20 * 8)], %f0
+	ldd	[%sp + STACK_BIAS + (21 * 8)], %f2
+	ldd	[%sp + STACK_BIAS + (22 * 8)], %f4
+	ldd	[%sp + STACK_BIAS + (23 * 8)], %f8
 
 	jmpl	%i7 + 8, %g0
 	 restore
@@ -219,10 +226,7 @@ _dl_profile_invoke:
 _dl_runtime_profile_0:
 	cfi_startproc
 
-	brz,a,pn %fp, 1f
-	 mov	192, %g5
-	sub	%fp, %sp, %g5
-1:	save	%sp, -336, %sp
+	save	%sp, -336, %sp
 	cfi_def_cfa_register(%fp)
 	cfi_window_save
 	cfi_register(%o7, %i7)
@@ -250,7 +254,6 @@ _dl_runtime_profile_0:
 	mov	%i7, %o2
 	sllx    %l0, 3, %o1
 
-	mov	%g5, %l0
 	mov	%o0, %l5
 	mov	%o1, %l6
 
@@ -261,8 +264,8 @@ _dl_runtime_profile_0:
 	call	_dl_profile_fixup
 	 add	%sp, (STACK_BIAS + (32 * 8)), %o4
 
-	ldx	[%sp + STACK_BIAS + (32 * 8)], %o1
-	brgez,pt %o1, 1f
+	ldx	[%sp + STACK_BIAS + (32 * 8)], %l0
+	brlz,pt %l0, 1f
 	 nop
 
 	call	_dl_profile_invoke
@@ -285,10 +288,7 @@ _dl_runtime_profile_0:
 _dl_runtime_profile_1:
 	cfi_startproc
 
-	brz,a,pn %fp, 1f
-	 mov	192, %g5
-	sub	%fp, %sp, %g5
-1:	save	%sp, -336, %sp
+	save	%sp, -336, %sp
 	cfi_def_cfa_register(%fp)
 	cfi_window_save
 	cfi_register(%o7, %i7)
@@ -300,7 +300,6 @@ _dl_runtime_profile_1:
 	mov	%i7, %o2
 	add	%o1, %o3, %o1
 
-	mov	%g5, %l0
 	mov	%o0, %l5
 	mov	%o1, %l6
 
@@ -311,8 +310,8 @@ _dl_runtime_profile_1:
 	call	_dl_profile_fixup
 	 add	%sp, (STACK_BIAS + (32 * 8)), %o4
 
-	ldx	[%sp + STACK_BIAS + (32 * 8)], %o1
-	brgez,pt %o1, 1f
+	ldx	[%sp + STACK_BIAS + (32 * 8)], %l0
+	brlz,pt %l0, 1f
 	 nop
 
 	call	_dl_profile_invoke