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* Makefile.in (os9kread.o): Remove dependency on partial-stab.h.

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* dbxread.c (read_dbx_symtab end_psymtab), partial-stab.h:  Don't
	use partial_symtab->textlow==0 as a flag, as 0 is a legitimate
	text address.  Use a seperate flag (textlow_not_set) instead.
	This makes stabs in ELF .o files work a lot better.
	* mdebugread.c xcoffread.c:  Define textlow_not_set for
	partial-stab.h.
	* stabsread.h (end_psymtab):  Add textlow_not_set arg to prototype.
This commit is contained in:
Stu Grossman
1996-07-23 01:24:58 +00:00
parent bf9884d41d
commit 3a179be149
7 changed files with 111 additions and 65 deletions
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56
gdb/partial-stab.h
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@@ -106,7 +106,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
symnum * symbol_size,
CUR_SYMBOL_VALUE > pst->texthigh
? CUR_SYMBOL_VALUE : pst->texthigh,
dependency_list, dependencies_used);
dependency_list, dependencies_used, textlow_not_set);
pst = (struct partial_symtab *) 0;
includes_used = 0;
dependencies_used = 0;
@@ -197,16 +197,27 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
static int prev_so_symnum = -10;
static int first_so_symnum;
char *p;
int prev_textlow_not_set;
valu = CUR_SYMBOL_VALUE + ANOFFSET (section_offsets, SECT_OFF_TEXT);
prev_textlow_not_set = textlow_not_set;
#ifdef SOFUN_ADDRESS_MAYBE_MISSING
/* A zero value is probably an indication for the SunPRO 3.0
compiler. end_psymtab explicitly tests for zero, so
don't relocate it. */
if (CUR_SYMBOL_VALUE == 0)
valu = 0;
#endif
if (CUR_SYMBOL_VALUE == 0)
{
textlow_not_set = 1;
valu = 0;
}
else
textlow_not_set = 0;
#else
textlow_not_set = 0;
#endif
past_first_source_file = 1;
if (prev_so_symnum != symnum - 1)
@@ -218,7 +229,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
END_PSYMTAB (pst, psymtab_include_list, includes_used,
symnum * symbol_size,
valu > pst->texthigh ? valu : pst->texthigh,
dependency_list, dependencies_used);
dependency_list, dependencies_used,
prev_textlow_not_set);
pst = (struct partial_symtab *) 0;
includes_used = 0;
dependencies_used = 0;
@@ -554,9 +566,12 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifdef SOFUN_ADDRESS_MAYBE_MISSING
/* Do not fix textlow==0 for .o or NLM files, as 0 is a legit
value for the bottom of the text seg in those cases. */
if (pst && pst->textlow == 0 && !symfile_relocatable)
pst->textlow =
find_stab_function_addr (namestring, pst, objfile);
if (pst && textlow_not_set)
{
pst->textlow =
find_stab_function_addr (namestring, pst, objfile);
textlow_not_set = 0;
}
#endif
#if 0
if (startup_file_end == 0)
@@ -568,11 +583,14 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
the bounds created by N_SO symbols. If that's the case
use the address of this function as the low bound for
the partial symbol table. */
if (pst->textlow == 0
if (textlow_not_set
|| (CUR_SYMBOL_VALUE < pst->textlow
&& CUR_SYMBOL_VALUE
!= ANOFFSET (section_offsets, SECT_OFF_TEXT)))
pst->textlow = CUR_SYMBOL_VALUE;
{
pst->textlow = CUR_SYMBOL_VALUE;
textlow_not_set = 0;
}
#endif /* DBXREAD_ONLY */
add_psymbol_to_list (namestring, p - namestring,
VAR_NAMESPACE, LOC_BLOCK,
@@ -594,9 +612,12 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifdef SOFUN_ADDRESS_MAYBE_MISSING
/* Do not fix textlow==0 for .o or NLM files, as 0 is a legit
value for the bottom of the text seg in those cases. */
if (pst && pst->textlow == 0 && !symfile_relocatable)
pst->textlow =
find_stab_function_addr (namestring, pst, objfile);
if (pst && textlow_not_set)
{
pst->textlow =
find_stab_function_addr (namestring, pst, objfile);
textlow_not_set = 0;
}
#endif
#if 0
if (startup_file_end == 0)
@@ -607,11 +628,14 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
the bounds created by N_SO symbols. If that's the case
use the address of this function as the low bound for
the partial symbol table. */
if (pst->textlow == 0
if (textlow_not_set
|| (CUR_SYMBOL_VALUE < pst->textlow
&& CUR_SYMBOL_VALUE
!= ANOFFSET (section_offsets, SECT_OFF_TEXT)))
pst->textlow = CUR_SYMBOL_VALUE;
{
pst->textlow = CUR_SYMBOL_VALUE;
textlow_not_set = 0;
}
#endif /* DBXREAD_ONLY */
add_psymbol_to_list (namestring, p - namestring,
VAR_NAMESPACE, LOC_BLOCK,
@@ -728,7 +752,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
END_PSYMTAB (pst, psymtab_include_list, includes_used,
symnum * symbol_size,
(CORE_ADDR) 0,
dependency_list, dependencies_used);
dependency_list, dependencies_used, textlow_not_set);
pst = (struct partial_symtab *) 0;
includes_used = 0;
dependencies_used = 0;