From a363ed8b8075b169c037f1fd4fd80d85f18a9d7e Mon Sep 17 00:00:00 2001
From: Petr Machata <pmachata@redhat.com>
Date: Fri, 18 Mar 2011 10:05:57 +0100
Subject: [PATCH] dwarflint: DW_AT_high_pc always has to be >= DW_AT_low_pc

---
 dwarflint/check_debug_info.cc                           | 2 +-
 dwarflint/tests/run-bad.sh                              | 3 +++
 dwarflint/tests/run-debug_abbrev-duplicate-attribute.sh | 1 +
 3 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/dwarflint/check_debug_info.cc b/dwarflint/check_debug_info.cc
index e01b4c9c1..b64a82eb1 100644
--- a/dwarflint/check_debug_info.cc
+++ b/dwarflint/check_debug_info.cc
@@ -967,7 +967,7 @@ namespace
 					   "DW_AT_low_pc and DW_AT_high_pc");
 		/* If there is no coverage, these attributes should
 		   not ever be there.  */
-		if (low_pc > high_pc || (low_pc == high_pc && low_pc > 0))
+		if (low_pc > high_pc || low_pc == high_pc)
 		  wr_message (where, mc_die_other | mc_impact_3)
 		    << "DW_AT_low_pc value not below DW_AT_high_pc."
 		    << std::endl;
diff --git a/dwarflint/tests/run-bad.sh b/dwarflint/tests/run-bad.sh
index fc14f8030..6e6db3ff3 100755
--- a/dwarflint/tests/run-bad.sh
+++ b/dwarflint/tests/run-bad.sh
@@ -47,6 +47,7 @@ error: .debug_info: DIE 0xab: toplevel DIE chain contains more than one DIE.
 EOF
 
 testrun_compare ./dwarflint empty-1 <<EOF
+warning: .debug_info: DIE 0xb: DW_AT_low_pc value not below DW_AT_high_pc.
 warning: .debug_line: table 0: no CU uses this line table.
 error: .debug_info: DIE 0x29 (abbr. attribute 0x13): references .debug_line table, but CU DIE lacks DW_AT_stmt_list.
 EOF
@@ -106,6 +107,7 @@ EOF
 testrun_compare ./dwarflint garbage-10 <<EOF
 warning: .rela.debug_info: offset 0xc: relocation formed using STT_SECTION symbol with non-zero value.
 error: .rela.debug_info: offset 0x11: couldn't obtain symbol #7208969: invalid section index.
+warning: .debug_info: DIE 0xb: DW_AT_low_pc value not below DW_AT_high_pc.
 EOF
 
 testrun_compare ./dwarflint garbage-11 <<EOF
@@ -120,6 +122,7 @@ warning: .debug_info: CU 0: abbrev table offset seems to lack a relocation
 warning: .debug_info: DIE 0xb (abbr. attribute 0): strp seems to lack a relocation
 warning: .debug_info: DIE 0xb (abbr. attribute 0x4): strp seems to lack a relocation
 warning: .debug_info: DIE 0xb (abbr. attribute 0xa): data4 seems to lack a relocation
+warning: .debug_info: DIE 0xb: DW_AT_low_pc value not below DW_AT_high_pc.
 error: .debug_line: table 0: header claims that it has a size of 542, but in fact it has a size of 30.
 error: .debug_info: DIE 0xb (abbr. attribute 0xa): unresolved reference to .debug_line table 0x0.
 EOF
diff --git a/dwarflint/tests/run-debug_abbrev-duplicate-attribute.sh b/dwarflint/tests/run-debug_abbrev-duplicate-attribute.sh
index 1e73d2078..d6d2937fb 100755
--- a/dwarflint/tests/run-debug_abbrev-duplicate-attribute.sh
+++ b/dwarflint/tests/run-debug_abbrev-duplicate-attribute.sh
@@ -33,4 +33,5 @@ testrun_compare ./dwarflint debug_abbrev-duplicate-attribute <<EOF
 error: .debug_abbrev: abbr. attribute 0x19: duplicate attribute byte_size (first was at 0x13).
 error: .debug_abbrev: abbr. attribute 0x1b: duplicate attribute decl_file (first was at 0x15).
 error: .debug_abbrev: abbr. attribute 0x1d: duplicate attribute decl_line (first was at 0x17).
+warning: .debug_info: DIE 0xb: DW_AT_low_pc value not below DW_AT_high_pc.
 EOF
-- 
2.47.2