https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95496
Bug ID: 95496
Summary: [10/11 Regression] Bogus -Wformat-overflow= warnings
with -fsanitize=undefined
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: sanitizer
Assignee: unassigned at gcc dot gnu.org
Reporter: hjl.tools at gmail dot com
CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org,
jakub at gcc dot gnu.org, kcc at gcc dot gnu.org, marxin at
gcc dot gnu.org
Target Milestone: ---
Created attachment 48666
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48666&action=edit
A testcase
GCC 10.1 gave
[hjl@gnu-cfl-2 tmp]$ gcc -Wall -S -O2 x.i -fsanitize=undefined
In function ‘pe_print_idata’,
inlined from ‘_bfd_pe_print_private_bfd_data_common’ at peXXigen.c:2979:3:
peXXigen.c:1378:3: warning: null format string [-Wformat-overflow=]
peXXigen.c:1378:3: warning: null format string [-Wformat-overflow=]
In function ‘pe_print_edata’,
inlined from ‘_bfd_pe_print_private_bfd_data_common’ at peXXigen.c:2980:3:
peXXigen.c:1713:3: warning: null format string [-Wformat-overflow=]
peXXigen.c:1719:3: warning: null format string [-Wformat-overflow=]
peXXigen.c:1716:3: warning: null format string [-Wformat-overflow=]
peXXigen.c:1719:3: warning: null format string [-Wformat-overflow=]
peXXigen.c:1719:3: warning: null format string [-Wformat-overflow=]
peXXigen.c:1737:3: warning: null format string [-Wformat-overflow=]
peXXigen.c:1744:3: warning: null format string [-Wformat-overflow=]
peXXigen.c:1740:3: warning: null format string [-Wformat-overflow=]
peXXigen.c:1744:3: warning: null format string [-Wformat-overflow=]
peXXigen.c:1744:3: warning: null format string [-Wformat-overflow=]
peXXigen.c:1747:3: warning: null format string [-Wformat-overflow=]
peXXigen.c:1750:3: warning: null format string [-Wformat-overflow=]
peXXigen.c:1750:3: warning: null format string [-Wformat-overflow=]
peXXigen.c:1755:3: warning: null format string [-Wformat-overflow=]
peXXigen.c:1760:3: warning: null format string [-Wformat-overflow=]
peXXigen.c:1760:3: warning: null format string [-Wformat-overflow=]
peXXigen.c:1760:3: warning: null format string [-Wformat-overflow=]
[hjl@gnu-cfl-2 tmp]$
GCC 9.3 is OK.
