34 lines
1.2 KiB
Diff
34 lines
1.2 KiB
Diff
From c17b2a05dd50a3ba437e6373093a0d6a359cdee0 Mon Sep 17 00:00:00 2001
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From: Richard Weinberger <richard@nod.at>
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Date: Fri, 2 Aug 2024 12:08:43 +0200
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Subject: [PATCH] x86: Fix ptrdiff_t for x86_64
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sbrk() assumes ptrdiff_t is large enough to enlarge/shrink the heap
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by LONG_MIN/LONG_MAX.
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So, use the long type, also to match the rest of the Linux ecosystem.
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Signed-off-by: Richard Weinberger <richard@nod.at>
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Reviewed-by: Simon Glass <sjg@chromium.org>
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---
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arch/x86/include/asm/posix_types.h | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/arch/x86/include/asm/posix_types.h b/arch/x86/include/asm/posix_types.h
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index dbcea7f47ff9..e1ed9bcabc76 100644
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--- a/arch/x86/include/asm/posix_types.h
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+++ b/arch/x86/include/asm/posix_types.h
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@@ -20,11 +20,12 @@ typedef unsigned short __kernel_gid_t;
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#if defined(__x86_64__)
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typedef unsigned long __kernel_size_t;
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typedef long __kernel_ssize_t;
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+typedef long __kernel_ptrdiff_t;
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#else
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typedef unsigned int __kernel_size_t;
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typedef int __kernel_ssize_t;
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-#endif
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typedef int __kernel_ptrdiff_t;
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+#endif
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typedef long __kernel_time_t;
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typedef long __kernel_suseconds_t;
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typedef long __kernel_clock_t;
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