diff options
Diffstat (limited to 'libdw/dwarf_highpc.c')
| -rw-r--r-- | libdw/dwarf_highpc.c | 28 |
1 files changed, 16 insertions, 12 deletions
diff --git a/libdw/dwarf_highpc.c b/libdw/dwarf_highpc.c index 20702545..5b2f0fd6 100644 --- a/libdw/dwarf_highpc.c +++ b/libdw/dwarf_highpc.c @@ -1,7 +1,6 @@ /* Return high PC attribute of DIE. - Copyright (C) 2003, 2005, 2012 Red Hat, Inc. + Copyright (C) 2003, 2005, 2012, 2018 Red Hat, Inc. This file is part of elfutils. - Written by Ulrich Drepper <drepper@redhat.com>, 2003. This file is free software; you can redistribute it and/or modify it under the terms of either @@ -39,19 +38,22 @@ int dwarf_highpc (Dwarf_Die *die, Dwarf_Addr *return_addr) { Dwarf_Attribute attr_high_mem; - Dwarf_Attribute *attr_high = INTUSE(dwarf_attr) (die, DW_AT_high_pc, - &attr_high_mem); + Dwarf_Attribute *attr_high; + /* Split compile DIEs inherit high_pc from their skeleton DIE. */ + if (is_cudie (die) && die->cu->unit_type == DW_UT_split_compile) + attr_high = INTUSE(dwarf_attr_integrate) (die, DW_AT_high_pc, + &attr_high_mem); + else + attr_high = INTUSE(dwarf_attr) (die, DW_AT_high_pc, &attr_high_mem); + if (attr_high == NULL) - return -1; + goto no_addr; - if (attr_high->form == DW_FORM_addr) - return INTUSE(dwarf_formaddr) (attr_high, return_addr); + if (INTUSE(dwarf_formaddr) (attr_high, return_addr) == 0) + return 0; /* DWARF 4 allows high_pc to be a constant offset from low_pc. */ - Dwarf_Attribute attr_low_mem; - if (INTUSE(dwarf_formaddr) (INTUSE(dwarf_attr) (die, DW_AT_low_pc, - &attr_low_mem), - return_addr) == 0) + if (INTUSE(dwarf_lowpc) (die, return_addr) == 0) { Dwarf_Word uval; if (INTUSE(dwarf_formudata) (attr_high, &uval) == 0) @@ -59,8 +61,10 @@ dwarf_highpc (Dwarf_Die *die, Dwarf_Addr *return_addr) *return_addr += uval; return 0; } - __libdw_seterrno (DWARF_E_NO_ADDR); } + +no_addr: + __libdw_seterrno (DWARF_E_NO_ADDR); return -1; } INTDEF(dwarf_highpc) |