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a67db8fcbd
Ever since an old patch version, it has (for reasonable security reasons) not supported patched with ../ in the filename. Many of our patches have been relying on this behaviour being OK, because we start off with an ancient patch version that didn't perform such checks. As soon as we need this behaviour after we build a newer patch though, we will have problems. So, let's change the policy. Patches are relative to where tarballs are extracted, rather than the "working directory" - e.g. have patches for `coreutils-9.4/src/cp.c` instead of `src/cp.c`. Keeping this consistent has a few implications; - patches are applied from the build/ directory in bash era now, with `-p0` - when patches are manually applied in the bash era, use `-p` as required, usually `-p1` - in kaem era where patches are always manually applied, `-p1` is used
35 lines
1.1 KiB
Diff
35 lines
1.1 KiB
Diff
SPDX-FileCopyrightText: 2020 Rich Felker <dalias@aerifal.cx>
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SPDX-License-Identifier: MIT
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From 0b0640219338b80cf47026d1970b5503414ed7f3 Mon Sep 17 00:00:00 2001
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From: Rich Felker <dalias@aerifal.cx>
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Date: Sun, 30 Aug 2020 21:37:12 -0400
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Subject: fix i386 __set_thread_area fallback
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this code is only needed for pre-2.6 kernels, which are not actually
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supported anyway, and was never tested. the fallback path using
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SYS_modify_ldt failed to clear the upper bits of %eax (all ones due to
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SYS_set_thread_area's return value being an error) before modifying
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%al to attempt a new syscall.
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---
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src/thread/i386/__set_thread_area.s | 1 +
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1 file changed, 1 insertion(+)
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(limited to 'src/thread/i386/__set_thread_area.s')
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diff --git src/thread/i386/__set_thread_area.s src/thread/i386/__set_thread_area.s
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index c2c21dd5..aa6852be 100644
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--- musl-1.1.24/src/thread/i386/__set_thread_area.s
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+++ musl-1.1.24/src/thread/i386/__set_thread_area.s
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@@ -28,6 +28,7 @@ __set_thread_area:
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ret
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2:
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mov %ebx,%ecx
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+ xor %eax,%eax
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xor %ebx,%ebx
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xor %edx,%edx
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mov %ebx,(%esp)
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--
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cgit v1.2.1
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