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Keywords:
Triaged
Status:
CLOSED WONTFIX
Alias:
None
Product:
Red Hat Enterprise Linux 8
Classification:
Red Hat
Component:
gcc
Sub Component:
--- system-version
Version:
8.3
Hardware:
x86_64
OS:
Unspecified
Priority:
unspecified
Severity:
unspecified
Target Milestone:
rc
Target Release:
8.0
Assignee:
Marek Polacek
QA Contact:
qe-baseos-tools-bugs
Docs Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+
depends on / blocked
Reported:
2020-02-24 13:55 UTC by Christian Hägele
Modified:
2023-07-18 14:19 UTC (History)
CC List:
8 users (show) ahajkova fweimer haegele jakub law mjtrangoni ohudlick sipoyare
Fixed In Version:
Doc Type:
If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed:
2020-03-13 15:55:53 UTC
Type:
Bug
Target Upstream Version:
Embargoed:
Dependent Products:
Container Native Virtualization (CNV) Ember-CSI ExternalDNS Operator for OpenShift Container Platform Kubernetes-native Infrastructure OpenShift Container Platform Red Hat Ceph Storage Red Hat Certificate System Red Hat CloudForms Management Engine Red Hat Directory Server Red Hat Enterprise MRG Red Hat Enterprise Virtualization Manager Red Hat Gluster Storage Red Hat OpenShift Data Foundation Red Hat OpenStack Service Telemetry Framework
Flags:
pm-rhel: mirror+
Attachments
(Terms of Use)
Description Christian Hägele 2020-02-24 13:55:08 UTC Description of problem: Precompiled-Headers don't work with the system-compiler. Same code compiles on all other platforms I tried. Even with the same Compiler-Version. Version-Release number of selected component (if applicable): gcc (GCC) 8.3.1 20190507 (Red Hat 8.3.1-4) How reproducible: Any C++-Program which tries to use precompiled-headers and uses -Winvalid-pch. I added a minimal example to reproduce. Steps to Reproduce: 1. echo "#include <iostream>" > test.txt 2. echo "#include "stdafx.h" int main() { std::cout << "Hello World" << std::endl; return 0; } " > test.txt 3. mkdir stdafx.h.gch 4. /usr/bin/c++ -Wall -Wextra -Werror -x c++-header -o stdafx.h.gch/.c++ stdafx.h 5. /usr/bin/c++ -Wall -Wextra -Werror -Winvalid-pch -o main.o -c main.cpp Actual results: main.cpp:1:20: error: stdafx.h.gch/.c++: had text segment at different address [-Werror] #include "stdafx.h" ^ Expected results: Compile succeeds without Warnings and Error and is using Precompiled-Headers Additional info: I tested the same code also with DevToolset-8 (GCC-8.3.1)on RHEL7 and also with GCC-8.2.1 on openSUSE Leap 15.1 and it works without problems. Comment 1 Christian Hägele 2020-02-24 14:03:52 UTC I did a stupid copy&paste mistake on the steps to reproduce. Sorry for that. Here are the correct steps: 1. echo "#include <iostream>" > stdafx.h 2. echo "#include "stdafx.h" int main() { std::cout << "Hello World" << std::endl; return 0; } " > main.cpp 3. mkdir stdafx.h.gch 4. /usr/bin/c++ -Wall -Wextra -Werror -x c++-header -o stdafx.h.gch/.c++ stdafx.h 5. /usr/bin/c++ -Wall -Wextra -Werror -Winvalid-pch -o main.o -c main.cpp Comment 2 Marek Polacek 2020-02-24 14:58:25 UTC Looks very much like a duplicate of Bug 1721553. Comment 3 Mario Trangoni 2020-02-24 16:20:33 UTC JFTR, the same code compiles on GCC-9 from GCC Toolset. $ sudo dnf install gcc-toolset-9-gcc-c++ $ scl enable gcc-toolset-9 bash $ c++ -Wall -Wextra -Werror -x c++-header -o stdafx.h.gch/.c++ stdafx.h $ c++ -Wall -Wextra -Werror -Winvalid-pch -o main.o -c main.cpp $ c++ --version c++ (GCC) 9.1.1 20190605 (Red Hat 9.1.1-2) Copyright (C) 2019 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Comment 4 Marek Polacek 2020-02-24 16:24:54 UTC Yes, that would make sense because I think we don't turn on hardening the compiler and its binaries in DTS 9. Comment 5 Christian Hägele 2020-03-03 13:22:09 UTC Is there any update on this issue? Did I do something wrong or is the current behavior expected? Comment 6 Jeff Law 2020-03-13 15:55:53 UTC This is expected behavior. GCC's PCH mechanism is fundamentally incompatible with the security hardening requirements for RHEL (PIE in particular). We are currently evaluating the best way to present a more friendly diagnostic for this issue.
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