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* irix5-nat.c, osfsolib.c, solib.c (symbol_add_stub): Handle

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missing or zero-sized .text sections properly.
	* mdebugread.c:  Handle scRConst and scSUndefined storage classes.
	* stabsread.c (scan_file_globals):  Try to resolve symbols
	for shared libraries from the minimal symbol table of the main
	executable first.
This commit is contained in:
Peter Schauer
1996-11-02 11:59:19 +00:00
parent 61e5b759cd
commit 73b8e6a915
5 changed files with 161 additions and 88 deletions
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23
gdb/mdebugread.c
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@@ -721,6 +721,7 @@ parse_symbol (sh, ax, ext_sh, bigend, section_offsets)
switch (sh->sc)
{
case scText:
case scRConst:
/* Do not relocate relative values.
The value of a stEnd symbol is the displacement from the
corresponding start symbol value.
@@ -790,7 +791,8 @@ parse_symbol (sh, ax, ext_sh, bigend, section_offsets)
add_symbol (s, b);
/* Type could be missing if file is compiled without debugging info. */
if (sh->sc == scUndefined || sh->sc == scNil || sh->index == indexNil)
if (sh->sc == scUndefined || sh->sc == scSUndefined
|| sh->sc == scNil || sh->index == indexNil)
SYMBOL_TYPE (s) = nodebug_var_symbol_type;
else
SYMBOL_TYPE (s) = parse_type (cur_fd, ax, sh->index, 0, bigend, name);
@@ -849,7 +851,7 @@ parse_symbol (sh, ax, ext_sh, bigend, section_offsets)
SYMBOL_NAMESPACE (s) = VAR_NAMESPACE;
SYMBOL_CLASS (s) = LOC_BLOCK;
/* Type of the return value */
if (sh->sc == scUndefined || sh->sc == scNil)
if (sh->sc == scUndefined || sh->sc == scSUndefined || sh->sc == scNil)
t = mdebug_type_int;
else
{
@@ -898,7 +900,7 @@ parse_symbol (sh, ax, ext_sh, bigend, section_offsets)
add_block (b, top_stack->cur_st);
/* Not if we only have partial info */
if (sh->sc == scUndefined || sh->sc == scNil)
if (sh->sc == scUndefined || sh->sc == scSUndefined || sh->sc == scNil)
break;
push_parse_stack ();
@@ -2081,7 +2083,8 @@ parse_external (es, bigend, section_offsets)
}
/* Reading .o files */
if (es->asym.sc == scUndefined || es->asym.sc == scNil)
if (es->asym.sc == scUndefined || es->asym.sc == scSUndefined
|| es->asym.sc == scNil)
{
char *what;
switch (es->asym.st)
@@ -2387,7 +2390,8 @@ parse_partial_symbols (objfile, section_offsets)
extern_tab[fdr_to_pst[ext_in->ifd].globals_offset
+ fdr_to_pst[ext_in->ifd].n_globals++] = *ext_in;
if (ext_in->asym.sc == scUndefined || ext_in->asym.sc == scNil)
if (ext_in->asym.sc == scUndefined || ext_in->asym.sc == scSUndefined
|| ext_in->asym.sc == scNil)
continue;
name = debug_info->ssext + ext_in->asym.iss;
@@ -2612,6 +2616,7 @@ parse_partial_symbols (objfile, section_offsets)
switch (sh.sc)
{
case scUndefined:
case scSUndefined:
case scNil:
case scAbs:
break;
@@ -2677,7 +2682,8 @@ parse_partial_symbols (objfile, section_offsets)
}
/* Non absolute static symbols go into the minimal table. */
if (sh.sc == scUndefined || sh.sc == scNil
if (sh.sc == scUndefined || sh.sc == scSUndefined
|| sh.sc == scNil
|| (sh.index == indexNil
&& (sh.st != stStatic || sh.sc == scAbs)))
{
@@ -2691,6 +2697,7 @@ parse_partial_symbols (objfile, section_offsets)
switch (sh.sc)
{
case scText:
case scRConst:
/* The value of a stEnd symbol is the displacement from the
corresponding start symbol value, do not relocate it. */
if (sh.st != stEnd)
@@ -2895,13 +2902,15 @@ parse_partial_symbols (objfile, section_offsets)
psh = &ext_ptr->asym;
/* Do not add undefined symbols to the partial symbol table. */
if (psh->sc == scUndefined || psh->sc == scNil)
if (psh->sc == scUndefined || psh->sc == scSUndefined
|| psh->sc == scNil)
continue;
svalue = psh->value;
switch (psh->sc)
{
case scText:
case scRConst:
svalue += ANOFFSET (section_offsets, SECT_OFF_TEXT);
break;
case scData: