diff mbox

[RFAv2,1/2] Fix regression 'info variables' does not show minimal symbols.

Message ID 20181110150048.21031-2-philippe.waroquiers@skynet.be
State New, archived
Headers

Commit Message

Philippe Waroquiers Nov. 10, 2018, 3 p.m. UTC 
  12615cba8411c8 Add [-q] [-t TYPEREGEXP] [NAMEREGEXP] args to info [args|functions|locals|variables]
introduced a regression that minimal symbols were not listed anymore, due to a wrong
condition checking the absence of a type regexp in the loop scanning the minimal symbols.

Instead, before entering the loop scanning the minimal symbols, check that we
do not have a type regexp, as we will never match a minimal symbol with
this type regexp.

With the fix in this patch, for this part of the code, we basically go back
to the GDB 8.2 logic, with just the addition of
  && !treg.has_value ())
to 'enter' in the minsym case.
This should ensure that at least there is no regression compared to 8.2,
when not using the new type matching argument, as there was no treg in 8.2.

2018-11-10  Philippe Waroquiers  <philippe.waroquiers@skynet.be>

	* symtab.c (search_symbols): Properly check absence of type regexp
	before entering the loop scanning the minimal symbols.
---
 gdb/symtab.c | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)
diff mbox

Patch

diff --git a/gdb/symtab.c b/gdb/symtab.c
index 2e9e6325ad..7a77bcfb18 100644
--- a/gdb/symtab.c
+++ b/gdb/symtab.c
@@ -4544,9 +4544,12 @@  search_symbols (const char *regexp, enum search_domain kind,
     sort_search_symbols_remove_dups (&result);
 
   /* If there are no eyes, avoid all contact.  I mean, if there are
-     no debug symbols, then add matching minsyms.  */
+     no debug symbols, then add matching minsyms.  But if the user wants
+     to see symbols matching a type regexp, then never give a minimal symbol,
+     as we assume that a minimal symbol does not have a type.  */
 
-  if (found_misc || (nfiles == 0 && kind != FUNCTIONS_DOMAIN))
+  if ((found_misc || (nfiles == 0 && kind != FUNCTIONS_DOMAIN))
+      && !treg.has_value ())
     {
       ALL_MSYMBOLS (objfile, msymbol)
       {
@@ -4560,13 +4563,9 @@  search_symbols (const char *regexp, enum search_domain kind,
 	    || MSYMBOL_TYPE (msymbol) == ourtype3
 	    || MSYMBOL_TYPE (msymbol) == ourtype4)
 	  {
-	    /* If the user wants to see var matching a type regexp,
-	       then never give a minimal symbol.  */
-	    if (kind != VARIABLES_DOMAIN
-		&& !treg.has_value () /* minimal symbol has never a type ???? */
-		&& (!preg.has_value ()
-		    || preg->exec (MSYMBOL_NATURAL_NAME (msymbol), 0,
-				   NULL, 0) == 0))
+	    if (!preg.has_value ()
+		|| preg->exec (MSYMBOL_NATURAL_NAME (msymbol), 0,
+			       NULL, 0) == 0)
 	      {
 		/* For functions we can do a quick check of whether the
 		   symbol might be found via find_pc_symtab.  */