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Luis Ressel <aranea@×××××.de> wrote: |
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> Martin Vaeth <martin@×××××.de> wrote: |
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> |
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>> For instance, you cannot even compile the kernel without special |
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>> patches (which disable pie) if you use a gcc which default-enables |
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>> pie. |
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> |
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> Now I'm curious. Wouldn't that also affect the hardened gcc? |
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|
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I would guess so, but I did not try: |
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I didn't use hardened gcc since years, because |
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|
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(a) I had to switch profiles too often because of forced pie which |
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used to break compilation for almost every second package (some |
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years ago). |
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|
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(b) -fstack-protector-all slowed down my system too much, especially |
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since the security improvement over -fstack-protector-strong |
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(or with older gcc versions -fstack-protector) is rather negligible. |
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|
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> I've never had any issues compiling vanilla-sources |
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|
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The experience I had reported was with the first non-beta versions of |
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gcc-6[pie] from the hardened overlay and several (at that time current) |
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versions of hardened-sources. |
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|
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I retried now with gcc-7.1.0-r1[pie] and current gentoo-sources, and |
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it turned out that the issue does no longer exist. |
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|
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I do not know whether the reason is due to the change |
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hardened-sources -> gentoo-sources, due to an upstream kernel fix, |
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or due to a fix in the pie support of gcc (compared to the first |
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gcc-6 versions). |
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