From 8c9a987975e3bda9ed098c87ece7a2140bf9fffa Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Mon, 22 Mar 2004 03:55:50 +0000 Subject: [PATCH] * readelf.c (display_debug_frames): Don't crash for mismatched DW_CFA_restore_state. --- binutils/ChangeLog | 5 +++++ binutils/readelf.c | 20 +++++++++++++------- 2 files changed, 18 insertions(+), 7 deletions(-) diff --git a/binutils/ChangeLog b/binutils/ChangeLog index 33cb21908b6..2e41bc8b501 100644 --- a/binutils/ChangeLog +++ b/binutils/ChangeLog @@ -1,3 +1,8 @@ +2004-03-21 Richard Henderson + + * readelf.c (display_debug_frames): Don't crash for mismatched + DW_CFA_restore_state. + 2004-03-19 Alan Modra * Makefile.am: Run "make dep-am". diff --git a/binutils/readelf.c b/binutils/readelf.c index ddbf7819e30..3561eff0a6e 100644 --- a/binutils/readelf.c +++ b/binutils/readelf.c @@ -9150,13 +9150,19 @@ display_debug_frames (Elf_Internal_Shdr *section, if (! do_debug_frames_interp) printf (" DW_CFA_restore_state\n"); rs = remembered_state; - remembered_state = rs->next; - frame_need_space (fc, rs->ncols-1); - memcpy (fc->col_type, rs->col_type, rs->ncols); - memcpy (fc->col_offset, rs->col_offset, rs->ncols * sizeof (int)); - free (rs->col_type); - free (rs->col_offset); - free (rs); + if (rs) + { + remembered_state = rs->next; + frame_need_space (fc, rs->ncols-1); + memcpy (fc->col_type, rs->col_type, rs->ncols); + memcpy (fc->col_offset, rs->col_offset, + rs->ncols * sizeof (int)); + free (rs->col_type); + free (rs->col_offset); + free (rs); + } + else if (do_debug_frames_interp) + printf ("Mismatched DW_CFA_restore_state\n"); break; case DW_CFA_def_cfa: -- 2.30.2