Hi
While looking through the mingw rpm macros, I noticed that we currently have
mingw{32,64}_cflags = -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2
-fexceptions --param=ssp-buffer-size=4
whereas for native packages we have
optflags = -O2 -g -pipe -Wall -Werror=format-security
-Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions
-fstack-protector-strong -grecord-gcc-switches
-specs=/usr/lib/rpm/redhat/redhat-hardened-cc1
-specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic
-fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection
As I read the gcc docs and [1] (by no means an expert in the matter),
I'd say the following might also make sense for the mingw cflags:
- -Werror=format-security
- -Wp,-D_GLIBCXX_ASSERTIONS
- -fstack-protector-strong
- -fasynchronous-unwind-tables
- -fstack-clash-protection
I've got a mass tool chain update scheduled before the F33 mass rebuild,
I could in the same go also update the flags. Opinions?
Sandro
[1]
https://developers.redhat.com/blog/2018/03/21/compiler-and-linker-flags-gcc/
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