[Bug libc/29141] _FORTIFY_SOURCE=3 fail for gcc 12/glibc 2.35
https://sourceware.org/bugzilla/show_bug.cgi?id=29141 --- Comment #7 from cvs-commit at gcc dot gnu.org --- The master branch has been updated by Siddhesh Poyarekar : https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=61a87530108ec9181e1b18a9b727ec3cc3ba7532 commit 61a87530108ec9181e1b18a9b727ec3cc3ba7532 Author: Siddhesh Poyarekar Date: Fri May 13 10:01:47 2022 +0530 fortify: Ensure that __glibc_fortify condition is a constant [BZ #29141] The fix c8ee1c85 introduced a -1 check for object size without also checking that object size is a constant. Because of this, the tree optimizer passes in gcc fail to fold away one of the branches in __glibc_fortify and trips on a spurious Wstringop-overflow. The warning itself is incorrect and the branch does go away eventually in DCE in the rtl passes in gcc, but the constant check is a helpful hint to simplify code early, so add it in. Resolves: BZ #29141 Signed-off-by: Siddhesh Poyarekar -- You are receiving this mail because: You are on the CC list for the bug.
[Bug libc/29141] _FORTIFY_SOURCE=3 fail for gcc 12/glibc 2.35
https://sourceware.org/bugzilla/show_bug.cgi?id=29141 --- Comment #9 from cvs-commit at gcc dot gnu.org --- The release/2.35/master branch has been updated by Siddhesh Poyarekar : https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=58947e1fa593cff7b5513d5e8e0c81b0131984b4 commit 58947e1fa593cff7b5513d5e8e0c81b0131984b4 Author: Siddhesh Poyarekar Date: Fri May 13 10:01:47 2022 +0530 fortify: Ensure that __glibc_fortify condition is a constant [BZ #29141] The fix c8ee1c85 introduced a -1 check for object size without also checking that object size is a constant. Because of this, the tree optimizer passes in gcc fail to fold away one of the branches in __glibc_fortify and trips on a spurious Wstringop-overflow. The warning itself is incorrect and the branch does go away eventually in DCE in the rtl passes in gcc, but the constant check is a helpful hint to simplify code early, so add it in. Resolves: BZ #29141 Signed-off-by: Siddhesh Poyarekar -- You are receiving this mail because: You are on the CC list for the bug.
[Bug libc/29141] _FORTIFY_SOURCE=3 fail for gcc 12/glibc 2.35
https://sourceware.org/bugzilla/show_bug.cgi?id=29141 --- Comment #10 from cvs-commit at gcc dot gnu.org --- The release/2.34/master branch has been updated by Siddhesh Poyarekar : https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=b72bbba23687ed67887d1d18c51cce5cc9c575ca commit b72bbba23687ed67887d1d18c51cce5cc9c575ca Author: Siddhesh Poyarekar Date: Fri May 13 10:01:47 2022 +0530 fortify: Ensure that __glibc_fortify condition is a constant [BZ #29141] The fix c8ee1c85 introduced a -1 check for object size without also checking that object size is a constant. Because of this, the tree optimizer passes in gcc fail to fold away one of the branches in __glibc_fortify and trips on a spurious Wstringop-overflow. The warning itself is incorrect and the branch does go away eventually in DCE in the rtl passes in gcc, but the constant check is a helpful hint to simplify code early, so add it in. Resolves: BZ #29141 Signed-off-by: Siddhesh Poyarekar (cherry picked from commit 61a87530108ec9181e1b18a9b727ec3cc3ba7532) -- You are receiving this mail because: You are on the CC list for the bug.
