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838bf3a74b
This change removes 1.0.3 and 1.1.3 and linker regession patches for those versions. We add 1.0.4, and a patch needed for gcc-4.9.x which defines `max_align_t'. Signed-off-by: Bryan Hundven <bryanhundven@gmail.com>
154 lines
4.7 KiB
Diff
154 lines
4.7 KiB
Diff
From 321f4fa9067185aa6bb47403dfba46e8cfe917d3 Mon Sep 17 00:00:00 2001
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From: Rich Felker <dalias@aerifal.cx>
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Date: Wed, 20 Aug 2014 21:20:14 +0000
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Subject: add max_align_t definition for C11 and C++11
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unfortunately this needs to be able to vary by arch, because of a huge
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mess GCC made: the GCC definition, which became the ABI, depends on
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quirks in GCC's definition of __alignof__, which does not match the
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formal alignment of the type.
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GCC's __alignof__ unexpectedly exposes the an implementation detail,
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its "preferred alignment" for the type, rather than the formal/ABI
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alignment of the type, which it only actually uses in structures. on
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most archs the two values are the same, but on some (at least i386)
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the preferred alignment is greater than the ABI alignment.
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I considered using _Alignas(8) unconditionally, but on at least one
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arch (or1k), the alignment of max_align_t with GCC's definition is
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only 4 (even the "preferred alignment" for these types is only 4).
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---
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diff --git a/arch/arm/bits/alltypes.h.in b/arch/arm/bits/alltypes.h.in
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index 0d750cc..183c4c4 100644
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--- a/arch/arm/bits/alltypes.h.in
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+++ b/arch/arm/bits/alltypes.h.in
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@@ -13,6 +13,8 @@ TYPEDEF unsigned wint_t;
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TYPEDEF float float_t;
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TYPEDEF double double_t;
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+TYPEDEF struct { long long __ll; long double __ld; } max_align_t;
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+
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TYPEDEF long time_t;
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TYPEDEF long suseconds_t;
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diff --git a/arch/i386/bits/alltypes.h.in b/arch/i386/bits/alltypes.h.in
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index 502c882..8ba8f6f 100644
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--- a/arch/i386/bits/alltypes.h.in
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+++ b/arch/i386/bits/alltypes.h.in
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@@ -27,6 +27,8 @@ TYPEDEF long double float_t;
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TYPEDEF long double double_t;
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#endif
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+TYPEDEF struct { _Alignas(8) long long __ll; long double __ld; } max_align_t;
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+
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TYPEDEF long time_t;
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TYPEDEF long suseconds_t;
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diff --git a/arch/microblaze/bits/alltypes.h.in b/arch/microblaze/bits/alltypes.h.in
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index 4657d14..a03e1b8 100644
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--- a/arch/microblaze/bits/alltypes.h.in
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+++ b/arch/microblaze/bits/alltypes.h.in
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@@ -13,6 +13,8 @@ TYPEDEF unsigned wint_t;
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TYPEDEF float float_t;
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TYPEDEF double double_t;
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+TYPEDEF struct { long long __ll; long double __ld; } max_align_t;
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+
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TYPEDEF long time_t;
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TYPEDEF long suseconds_t;
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diff --git a/arch/mips/bits/alltypes.h.in b/arch/mips/bits/alltypes.h.in
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index 4657d14..a03e1b8 100644
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--- a/arch/mips/bits/alltypes.h.in
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+++ b/arch/mips/bits/alltypes.h.in
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@@ -13,6 +13,8 @@ TYPEDEF unsigned wint_t;
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TYPEDEF float float_t;
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TYPEDEF double double_t;
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+TYPEDEF struct { long long __ll; long double __ld; } max_align_t;
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+
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TYPEDEF long time_t;
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TYPEDEF long suseconds_t;
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diff --git a/arch/or1k/bits/alltypes.h.in b/arch/or1k/bits/alltypes.h.in
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index 0d750cc..183c4c4 100644
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--- a/arch/or1k/bits/alltypes.h.in
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+++ b/arch/or1k/bits/alltypes.h.in
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@@ -13,6 +13,8 @@ TYPEDEF unsigned wint_t;
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TYPEDEF float float_t;
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TYPEDEF double double_t;
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+TYPEDEF struct { long long __ll; long double __ld; } max_align_t;
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+
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TYPEDEF long time_t;
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TYPEDEF long suseconds_t;
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diff --git a/arch/powerpc/bits/alltypes.h.in b/arch/powerpc/bits/alltypes.h.in
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index 378124c..ee7f137 100644
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--- a/arch/powerpc/bits/alltypes.h.in
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+++ b/arch/powerpc/bits/alltypes.h.in
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@@ -13,6 +13,8 @@ TYPEDEF unsigned wint_t;
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TYPEDEF float float_t;
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TYPEDEF double double_t;
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+TYPEDEF struct { long long __ll; long double __ld; } max_align_t;
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+
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TYPEDEF long time_t;
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TYPEDEF long suseconds_t;
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diff --git a/arch/sh/bits/alltypes.h.in b/arch/sh/bits/alltypes.h.in
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index 378124c..ee7f137 100644
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--- a/arch/sh/bits/alltypes.h.in
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+++ b/arch/sh/bits/alltypes.h.in
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@@ -13,6 +13,8 @@ TYPEDEF unsigned wint_t;
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TYPEDEF float float_t;
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TYPEDEF double double_t;
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+TYPEDEF struct { long long __ll; long double __ld; } max_align_t;
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+
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TYPEDEF long time_t;
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TYPEDEF long suseconds_t;
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diff --git a/arch/x32/bits/alltypes.h.in b/arch/x32/bits/alltypes.h.in
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index 8930efa..8e396c9 100644
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--- a/arch/x32/bits/alltypes.h.in
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+++ b/arch/x32/bits/alltypes.h.in
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@@ -18,6 +18,8 @@ TYPEDEF float float_t;
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TYPEDEF double double_t;
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#endif
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+TYPEDEF struct { long long __ll; long double __ld; } max_align_t;
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+
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TYPEDEF long long time_t;
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TYPEDEF long long suseconds_t;
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diff --git a/arch/x86_64/bits/alltypes.h.in b/arch/x86_64/bits/alltypes.h.in
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index 34b7d6a..7b4f3e7 100644
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--- a/arch/x86_64/bits/alltypes.h.in
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+++ b/arch/x86_64/bits/alltypes.h.in
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@@ -18,6 +18,8 @@ TYPEDEF float float_t;
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TYPEDEF double double_t;
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#endif
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+TYPEDEF struct { long long __ll; long double __ld; } max_align_t;
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+
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TYPEDEF long time_t;
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TYPEDEF long suseconds_t;
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diff --git a/include/stddef.h b/include/stddef.h
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index 0a32919..bd75385 100644
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--- a/include/stddef.h
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+++ b/include/stddef.h
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@@ -10,6 +10,9 @@
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#define __NEED_ptrdiff_t
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#define __NEED_size_t
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#define __NEED_wchar_t
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+#if __STDC_VERSION__ >= 201112L || __cplusplus >= 201103L
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+#define __NEED_max_align_t
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+#endif
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#include <bits/alltypes.h>
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--
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cgit v0.9.0.3-65-g4555
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