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WARNING: (1) this has not yet been proofread as a printout---just eliminated
             problems that TeX complained about.
         (2) extraneous line breaks introduced in some examples, sometimes
             in ridiculously long strings; this may falsify examples.  Places
	     where I did this are marked by FIXME comments.
This commit is contained in:
Roland Pesch
1992-08-25 21:20:06 +00:00
parent 899bafebe2
commit 5bc927fb4e
1 changed files with 32 additions and 13 deletions
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45
gdb/doc/stabs.texinfo
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@ -1128,9 +1128,10 @@ scope.
N_LSYM, NIL, NIL, NIL N_LSYM, NIL, NIL, NIL
@end display @end display
@example @smallexample
105 .stabs "u_tag:T23=u4u_int:1,0,32;u_float:12,0,32;u_char:21,0,32;;",128,0,0,0 105 .stabs "u_tag:T23=u4u_int:1,0,32;u_float:12,0,32;u_char:21,0,32;;",
@end example 128,0,0,0
@end smallexample
The symbol descriptor, T, following the name: means that the stab The symbol descriptor, T, following the name: means that the stab
describes an enumeration struct or type tag. The type descriptor u, describes an enumeration struct or type tag. The type descriptor u,
@ -1831,12 +1832,18 @@ public:
Class stabs similar to the ones described earlier are generated for Class stabs similar to the ones described earlier are generated for
each base class. each base class.
@c FIXME!!! the linebreaks in the following example probably make the
@c examples literally unusable, but I don't know any other way to get
@c them on the page.
@smallexample @smallexample
.stabs "A:T20=s8Adat:1,0,32;$vf20:21=*22=ar1;0;1;17,32;A_virt::23=##1;:i;2A*-2147483647;20;;;~%20;",128,0,0,0 .stabs "A:T20=s8Adat:1,0,32;$vf20:21=*22=ar1;0;1;17,32;
A_virt::23=##1;:i;2A*-2147483647;20;;;~%20;",128,0,0,0
.stabs "B:Tt25=s8Bdat:1,0,32;$vf25:21,32;B_virt::26=##1;:i;2A*-2147483647;25;;;~%25;",128,0,0,0 .stabs "B:Tt25=s8Bdat:1,0,32;$vf25:21,32;B_virt::26=##1;
:i;2A*-2147483647;25;;;~%25;",128,0,0,0
.stabs "C:Tt28=s8Cdat:1,0,32;$vf28:21,32;C_virt::29=##1;:i;2A*-2147483647;28;;;~%28;",128,0,0,0 .stabs "C:Tt28=s8Cdat:1,0,32;$vf28:21,32;C_virt::29=##1;
:i;2A*-2147483647;28;;;~%28;",128,0,0,0
@end smallexample @end smallexample
In the stab describing derived class D below, the information about In the stab describing derived class D below, the information about
@ -1853,8 +1860,12 @@ the derivation of this class is encoded as follows.
base_class_type_ref(C); @dots{} base_class_type_ref(C); @dots{}
@end display @end display
@c FIXME! fake linebreaks.
@smallexample @smallexample
.stabs "D:Tt31=s32!3,000,20;100,25;0264,28;$vb25:24,128;Ddat:1,160,32;A_virt::32=##1;:i;2A*-2147483647;20;;B_virt::32:i;2A*-2147483647;25;;C_virt::32:i;2A*-2147483647;28;;D_virt::32:i;2A*-2147483646;31;;;~%20;",128,0,0,0 .stabs "D:Tt31=s32!3,000,20;100,25;0264,28;$vb25:24,128;Ddat:
1,160,32;A_virt::32=##1;:i;2A*-2147483647;20;;B_virt:
:32:i;2A*-2147483647;25;;C_virt::32:i;2A*-2147483647;
28;;D_virt::32:i;2A*-2147483646;31;;;~%20;",128,0,0,0
@end smallexample @end smallexample
@node Virtual Base Classes @node Virtual Base Classes
@ -1880,8 +1891,12 @@ name is $vb followed by a type reference to the virtual base class.
Since the type id for B in this example is 25, the vbase pointer name Since the type id for B in this example is 25, the vbase pointer name
is $vb25. is $vb25.
@c FIXME!! fake linebreaks below
@smallexample @smallexample
.stabs "D:Tt31=s32!3,000,20;100,25;0264,28;$vb25:24,128;Ddat:1,160,32;A_virt::32=##1;:i;2A*-2147483647;20;;B_virt::32:i;2A*-2147483647;25;;C_virt::32:i;2A*-2147483647;28;;D_virt::32:i;2A*-2147483646;31;;;~%20;",128,0,0,0 .stabs "D:Tt31=s32!3,000,20;100,25;0264,28;$vb25:24,128;Ddat:1,
160,32;A_virt::32=##1;:i;2A*-2147483647;20;;B_virt::32:i;
2A*-2147483647;25;;C_virt::32:i;2A*-2147483647;28;;D_virt:
:32:i;2A*-2147483646;31;;;~%20;",128,0,0,0
@end smallexample @end smallexample
Following the name and a semicolon is a type reference describing the Following the name and a semicolon is a type reference describing the
@ -1993,7 +2008,9 @@ description in the class stab shows this ordering.
27 .align 4 27 .align 4
28 _s_g_repeat: 28 _s_g_repeat:
29 .word 2 29 .word 2
30 .stabs "s_tag:T16=s20s_int:1,0,32;s_float:12,32,32;s_char_vec:17=ar1;0;7;2,64,64;s_next:18=*16,128,32;;",128,0,0,0 @c FIXME! fake linebreak in line 30
30 .stabs "s_tag:T16=s20s_int:1,0,32;s_float:12,32,32;s_char_vec:
17=ar1;0;7;2,64,64;s_next:18=*16,128,32;;",128,0,0,0
31 .stabs "s_typedef:t16",128,0,0,0 31 .stabs "s_typedef:t16",128,0,0,0
32 .stabs "char_vec:G19=ar1;0;2;2",32,0,0,0 32 .stabs "char_vec:G19=ar1;0;2;2",32,0,0,0
33 .global _char_vec 33 .global _char_vec
@ -2068,7 +2085,9 @@ description in the class stab shows this ordering.
102 .stabn 224,0,0,LBE3 102 .stabn 224,0,0,LBE3
103 .stabn 224,0,0,LBE2 103 .stabn 224,0,0,LBE2
104 .stabs "e_places:T22=efirst:0,second:3,last:4,;",128,0,0,0 104 .stabs "e_places:T22=efirst:0,second:3,last:4,;",128,0,0,0
105 .stabs "u_tag:T23=u4u_int:1,0,32;u_float:12,0,32;u_char:21,0,32;;",128,0,0,0 @c FIXME: fake linebreak in line 105
105 .stabs "u_tag:T23=u4u_int:1,0,32;u_float:12,0,32;u_char:21,0,32;;",
128,0,0,0
106 .align 4 106 .align 4
107 .proc 1 107 .proc 1
108 _s_proc: 108 _s_proc:
@ -2127,7 +2146,7 @@ devo/include/aout/stab.def
@smallexample @smallexample
type type #define used to describe type type #define used to describe
dec hex name source program feature dec hex name source program feature
------------------------------------------------------------------------------- ------------------------------------------------
32 0x20 N_GYSM global symbol 32 0x20 N_GYSM global symbol
34 0X22 N_FNAME function name (for BSD Fortran) 34 0X22 N_FNAME function name (for BSD Fortran)
36 0x24 N_FUN function name or text segment variable for C 36 0x24 N_FUN function name or text segment variable for C
@ -2187,7 +2206,7 @@ The #define names for these n_types values are defined in
@smallexample @smallexample
dec hex #define dec hex #define
n_type n_type name used to describe n_type n_type name used to describe
----------------------------------------------------------------------------- ------------------------------------------
1 0x0 N_UNDF undefined symbol 1 0x0 N_UNDF undefined symbol
2 0x2 N_ABS absolute symbol -- defined at a particular address 2 0x2 N_ABS absolute symbol -- defined at a particular address
3 0x3 extern " (vs. file scope) 3 0x3 extern " (vs. file scope)
@ -2816,7 +2835,7 @@ fields present in a.out stabs are missing in xcoff stabs. For N_GSYM
the value field is the name of the symbol. the value field is the name of the symbol.
@item @item
BSD a.out stab types map to AIX xcoff storage classes. In general the BSD a.out stab types correspond to AIX xcoff storage classes. In general the
mapping is N_STABTYPE becomes C_STABTYPE. Some stab types in a.out mapping is N_STABTYPE becomes C_STABTYPE. Some stab types in a.out
are not supported in xcoff. See Table E. for full mappings. are not supported in xcoff. See Table E. for full mappings.