From 1ae65e19b214068e0fd3389f755d5a4ffffaca83 Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Sun, 24 Jan 2021 07:00:34 -0800 Subject: [PATCH] DWARF-5: Ignore empty range in DWARF-5 line number tables The DWARF5 spec does indeed explicitly say: "A bounded range entry whose beginning and ending address offsets are equal (including zero) indicates an empty range and may be ignored." Since arange_add already ignores empty ranges, remove the whole check which is equivalent to the check plus explicit continue. PR binutils/27231 * dwarf2.c (read_rnglists): Ignore empty range when parsing line number tables. (cherry picked from commit 940d0202fd472b09d370fb483bf5a8ae99c9c830) --- bfd/ChangeLog | 6 ++++++ bfd/dwarf2.c | 3 --- 2 files changed, 6 insertions(+), 3 deletions(-) diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 32deed3fbb2..6a2e70291d4 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,9 @@ +2021-01-24 H.J. Lu + + PR binutils/27231 + * dwarf2.c (read_rnglists): Ignore empty range when parsing line + number tables. + 2021-01-23 H.J. Lu PR binutils/27231 diff --git a/bfd/dwarf2.c b/bfd/dwarf2.c index 1682be5a225..767e9731199 100644 --- a/bfd/dwarf2.c +++ b/bfd/dwarf2.c @@ -3276,9 +3276,6 @@ read_rnglists (struct comp_unit *unit, struct arange *arange, return FALSE; } - if ((low_pc == 0 && high_pc == 0) || low_pc == high_pc) - return FALSE; - if (!arange_add (unit, arange, low_pc, high_pc)) return FALSE; } -- 2.47.3