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authorCoprDistGit <infra@openeuler.org>2024-08-03 06:28:41 +0000
committerCoprDistGit <infra@openeuler.org>2024-08-03 06:28:41 +0000
commitd20db0561a6a36f914fde030512503b114ef9a0c (patch)
treed4e5e3494d95c269a1cee6195f11bf3201bcadbf /elf-Fix-compile-error-with-Werror-and-DNDEBUG.patch
parent016343d99b1b269d7246ef1e143d4b54914433d4 (diff)
Diffstat (limited to 'elf-Fix-compile-error-with-Werror-and-DNDEBUG.patch')
-rw-r--r--elf-Fix-compile-error-with-Werror-and-DNDEBUG.patch36
1 files changed, 36 insertions, 0 deletions
diff --git a/elf-Fix-compile-error-with-Werror-and-DNDEBUG.patch b/elf-Fix-compile-error-with-Werror-and-DNDEBUG.patch
new file mode 100644
index 0000000..dcfa41f
--- /dev/null
+++ b/elf-Fix-compile-error-with-Werror-and-DNDEBUG.patch
@@ -0,0 +1,36 @@
+From 5e89ed42fd8997414732525c9460878d65363b3f Mon Sep 17 00:00:00 2001
+From: Yang Yanchao <yangyanchao6@huawei.com>
+Date: Fri, 15 Apr 2022 17:25:05 +0800
+Subject: [PATCH] elf: Fix compile error with -Werror and -DNDEBUG
+
+Using -Werror and -DNDEBUG at the same time will trigger the
+following compiler error:
+
+cache.c: In function 'save_cache':
+cache.c:758:15: error: unused variable 'old_offset' [-Werror=unused-variable]
+ 758 | off64_t old_offset = lseek64 (fd, extension_offset, SEEK_SET);
+ | ^~~~~~~~~~
+
+-DNDEBUG disables the assertion, making old_offset unused.
+Use __attribute__ ((unused)) to disable this warning.
+---
+ elf/cache.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/elf/cache.c b/elf/cache.c
+index abe2e49..3d7d3a6 100644
+--- a/elf/cache.c
++++ b/elf/cache.c
+@@ -727,7 +727,8 @@ save_cache (const char *cache_name)
+ if (opt_format != opt_format_old)
+ {
+ /* Align file position to 4. */
+- off64_t old_offset = lseek64 (fd, extension_offset, SEEK_SET);
++ __attribute__ ((unused)) off64_t old_offset
++ = lseek64 (fd, extension_offset, SEEK_SET);
+ assert ((unsigned long long int) (extension_offset - old_offset) < 4);
+ write_extensions (fd, str_offset, extension_offset);
+ }
+--
+1.8.3.1
+