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-rw-r--r--contrib/gdb/gdb/source.h34
1 files changed, 34 insertions, 0 deletions
diff --git a/contrib/gdb/gdb/source.h b/contrib/gdb/gdb/source.h
index 8dbf851..7cfed1a 100644
--- a/contrib/gdb/gdb/source.h
+++ b/contrib/gdb/gdb/source.h
@@ -21,6 +21,8 @@
#ifndef SOURCE_H
#define SOURCE_H
+struct symtab;
+
/* Open a source file given a symtab S. Returns a file descriptor or
negative number for error. */
extern int open_source_file (struct symtab *s);
@@ -31,4 +33,36 @@ extern int open_source_file (struct symtab *s);
lines. */
extern void find_source_lines (struct symtab *s, int desc);
+/* Return the first line listed by print_source_lines.
+ Used by command interpreters to request listing from
+ a previous point. */
+extern int get_first_line_listed (void);
+
+/* Return the default number of lines to print with commands like the
+ cli "list". The caller of print_source_lines must use this to
+ calculate the end line and use it in the call to print_source_lines
+ as it does not automatically use this value. */
+extern int get_lines_to_list (void);
+
+/* Return the current source file for listing and next line to list.
+ NOTE: The returned sal pc and end fields are not valid. */
+extern struct symtab_and_line get_current_source_symtab_and_line (void);
+
+/* If the current source file for listing is not set, try and get a default.
+ Usually called before get_current_source_symtab_and_line() is called.
+ It may err out if a default cannot be determined.
+ We must be cautious about where it is called, as it can recurse as the
+ process of determining a new default may call the caller!
+ Use get_current_source_symtab_and_line only to get whatever
+ we have without erroring out or trying to get a default. */
+extern void set_default_source_symtab_and_line (void);
+
+/* Return the current default file for listing and next line to list
+ (the returned sal pc and end fields are not valid.)
+ and set the current default to whatever is in SAL.
+ NOTE: The returned sal pc and end fields are not valid. */
+extern struct symtab_and_line set_current_source_symtab_and_line (const struct symtab_and_line *);
+
+/* Reset any information stored about a default file and line to print. */
+extern void clear_current_source_symtab_and_line (void);
#endif
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