u-boot/scripts/checkstack.pl

8 #	s390 port and big speedup by Arnd Bergmann <arnd@bergmann-dalldorf.de>
19 #	objdump -d vmlinux | scripts/checkstack.pl [arch]
40 		$arch = `uname -m`;
44 	$x	= "[0-9a-f]";	# hex character
45 	$xs	= "[0-9a-f ]";	# hex character or space
48 		#ffffffc0006325cc:       a9bb7bfd        stp     x29, x30, [sp,#-80]!
49 		$re = qr/^.*stp.*sp,\#-([0-9]{1,8})\]\!/o;
51 		#c0008ffc:	e24dd064	sub	sp, sp, #100	; 0x64
52 		$re = qr/.*sub.*sp, sp, #(([0-9]{2}|[3-9])[0-9]{2})/o;
54 		#c0105234:       81 ec ac 05 00 00       sub    $0x5ac,%esp
56 		#    2f60:    48 81 ec e8 05 00 00       sub    $0x5e8,%rsp
57 		$re = qr/^.*[as][du][db]    \$(0x$x{1,8}),\%(e|r)sp$/o;
60 		#e0000000044011fc:       01 0f fc 8c     adds r12=-384,r12
61 		$re = qr/.*adds.*r12=-(([0-9]{2}|[3-9])[0-9]{2}),r12/o;
63 		#    2b6c:       4e56 fb70       linkw %fp,#-1168
64 		#  1df770:       defc ffe4       addaw #-28,%sp
65 		$re = qr/.*(?:linkw %fp,|addaw )#-([0-9]{1,4})(?:,%sp)?$/o;
67 		#400026fc:       40 00 00 82     ADD       A0StP,A0StP,#0x8
68 		$re = qr/.*ADD.*A0StP,A0StP,\#(0x$x{1,8})/o;
71 		#8800402c:       67bdfff0        daddiu  sp,sp,-16
72 		$re = qr/.*daddiu.*sp,sp,-(([0-9]{2}|[3-9])[0-9]{2})/o;
74 		#88003254:       27bdffe0        addiu   sp,sp,-32
75 		$re = qr/.*addiu.*sp,sp,-(([0-9]{2}|[3-9])[0-9]{2})/o;
79 		#c00029f4:       94 21 ff 30     stwu    r1,-208(r1)
80 		$re = qr/.*stwu.*r1,-($x{1,8})\(r1\)/o;
83 		$re = qr/.*stdu.*r1,-($x{1,8})\(r1\)/o;
85 		$re = qr/.*st[dw]u.*r1,-($x{1,8})\(r1\)/o;
87 		#   11160:       a7 fb ff 60             aghi   %r15,-160
89 		#  100092:	 e3 f0 ff c8 ff 71	 lay	 %r15,-56(%r15)
90 		$re = qr/.*(?:lay|ag?hi).*\%r15,-(([0-9]{2}|[3-9])[0-9]{2})
95 		#     pair for larger users. -- PFM.
96 		#a00048e0:       d4fc40f0        addi.l  r15,-240,r15
97 		$re = qr/.*addi\.l.*r15,-(([0-9]{2}|[3-9])[0-9]{2}),r15/o;
99 		#   0:   00 e8 38 01     LINK 0x4e0;
100 		$re = qr/.*[[:space:]]LINK[[:space:]]*(0x$x{1,8})/o;
102 		# f0019d10:       9d e3 bf 90     save  %sp, -112, %sp
103 		$re = qr/.*save.*%sp, -(([0-9]{2}|[3-9])[0-9]{2}), %sp/o;
123 		if ($lastslash != -1) {
129 		$size = hex($size) if ($size =~ /^0x/);
131 		if ($size > 0xf0000000) {
132 			$size = - $size;
133 			$size += 0x80000000;
134 			$size += 0x80000000;
136 		next if ($size > 0x10000000);
140 		$addr =~ s/ /0/g;
141 		$addr = "0x$addr";
144 		my $padlen = 56 - length($intro);
145 		while ($padlen > 0) {
147 			$padlen -= 8;
157 		$addr =~ s/ /0/g;
158 		$addr = "0x$addr";
161 		my $padlen = 56 - length($intro);
162 		while ($padlen > 0) {
164 			$padlen -= 8;
171 print sort { ($b =~ /:\t*(\d+)$/)[0] <=> ($a =~ /:\t*(\d+)$/)[0] } @stack;