From 0892cb63bda9ac0bb2dea19d04ea35b2b54429d6 Mon Sep 17 00:00:00 2001 From: Doug Evans Date: Mon, 6 May 2013 22:18:39 +0000 Subject: [PATCH] * solist.h (struct target_so_ops): New member clear_so. * solib-svr4.c (svr4_clear_so): New function. (_initialize_svr4_solib): Set svr4_so_ops.clear_so. * solib.c (clear_so): Renamed from free_so_symbols. All callers updated. Call target clear_so if it exists. --- gdb/ChangeLog | 8 ++++++++ gdb/solib-svr4.c | 9 +++++++++ gdb/solib.c | 19 +++++++++++++------ gdb/solist.h | 5 +++++ 4 files changed, 35 insertions(+), 6 deletions(-) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index e520f966265..04457826e9d 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,11 @@ +2013-05-06 Doug Evans + + * solist.h (struct target_so_ops): New member clear_so. + * solib-svr4.c (svr4_clear_so): New function. + (_initialize_svr4_solib): Set svr4_so_ops.clear_so. + * solib.c (clear_so): Renamed from free_so_symbols. + All callers updated. Call target clear_so if it exists. + 2013-05-06 Tom Tromey * ada-lang.c (ada_value_primitive_packed_val): Don't diff --git a/gdb/solib-svr4.c b/gdb/solib-svr4.c index f3bff6e297e..4e094728e89 100644 --- a/gdb/solib-svr4.c +++ b/gdb/solib-svr4.c @@ -966,6 +966,14 @@ svr4_free_so (struct so_list *so) xfree (so->lm_info); } +/* Implement target_so_ops.clear_so. */ + +static void +svr4_clear_so (struct so_list *so) +{ + so->lm_info->l_addr_p = 0; +} + /* Free so_list built so far (called via cleanup). */ static void @@ -2448,6 +2456,7 @@ _initialize_svr4_solib (void) svr4_so_ops.relocate_section_addresses = svr4_relocate_section_addresses; svr4_so_ops.free_so = svr4_free_so; + svr4_so_ops.clear_so = svr4_clear_so; svr4_so_ops.clear_solib = svr4_clear_solib; svr4_so_ops.solib_create_inferior_hook = svr4_solib_create_inferior_hook; svr4_so_ops.special_symbol_handling = svr4_special_symbol_handling; diff --git a/gdb/solib.c b/gdb/solib.c index af48388812a..72db375b0d8 100644 --- a/gdb/solib.c +++ b/gdb/solib.c @@ -499,17 +499,20 @@ solib_map_sections (struct so_list *so) return 1; } -/* Free symbol-file related contents of SO. If we have opened a BFD - for SO, close it. If we have placed SO's sections in some target's - section table, the caller is responsible for removing them. +/* Free symbol-file related contents of SO and reset for possible reloading + of SO. If we have opened a BFD for SO, close it. If we have placed SO's + sections in some target's section table, the caller is responsible for + removing them. This function doesn't mess with objfiles at all. If there is an objfile associated with SO that needs to be removed, the caller is responsible for taking care of that. */ static void -free_so_symbols (struct so_list *so) +clear_so (struct so_list *so) { + struct target_so_ops *ops = solib_ops (target_gdbarch ()); + if (so->sections) { xfree (so->sections); @@ -528,6 +531,10 @@ free_so_symbols (struct so_list *so) /* Restore the target-supplied file name. SO_NAME may be the path of the symbol file. */ strcpy (so->so_name, so->so_original_name); + + /* Do the same for target-specific data. */ + if (ops->clear_so != NULL) + ops->clear_so (so); } /* Free the storage associated with the `struct so_list' object SO. @@ -546,7 +553,7 @@ free_so (struct so_list *so) { struct target_so_ops *ops = solib_ops (target_gdbarch ()); - free_so_symbols (so); + clear_so (so); ops->free_so (so); xfree (so); @@ -1238,7 +1245,7 @@ reload_shared_libraries_1 (int from_tty) && !solib_used (so)) free_objfile (so->objfile); remove_target_sections (so, so->abfd); - free_so_symbols (so); + clear_so (so); } /* If this shared library is now associated with a new symbol diff --git a/gdb/solist.h b/gdb/solist.h index f784fc349ed..049547417f8 100644 --- a/gdb/solist.h +++ b/gdb/solist.h @@ -88,6 +88,11 @@ struct target_so_ops associated with a so_list entry. */ void (*free_so) (struct so_list *so); + /* Reset private data structures associated with SO. + This is called when SO is about to be reloaded. + It is also called before free_so when SO is about to be freed. */ + void (*clear_so) (struct so_list *so); + /* Reset or free private data structures not associated with so_list entries. */ void (*clear_solib) (void); -- 2.30.2