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238520fee7
Backport upstream patches to enable native musl toolchain support in GCC. Only the changes required for i386 were taken, excluding changes for libgo and libfortran. These patches enable binaries built using gcc and g++ to automatically use musl's dynamic linker as their interpreter when present during the build.
69 lines
3 KiB
Diff
69 lines
3 KiB
Diff
SPDX-FileCopyrightText: 2022 Dor Askayo <dor.askayo@gmail.com>
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SPDX-FileCopyrightText: 2015 Szabolcs Nagy <szabolcs.nagy@arm.com>
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SPDX-License-Identifier: GPL-2.0-or-later
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Backported from upstream commit 07ad804bfdbe0fa3406c5f2ff51d7c4c29a783c8
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Add musl support to GCC
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2015-05-08 Szabolcs Nagy <szabolcs.nagy@arm.com>
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* config/glibc-stdint.h (OPTION_MUSL): Define.
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(INT_FAST16_TYPE, INT_FAST32_TYPE, UINT_FAST16_TYPE, UINT_FAST32_TYPE):
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Change the definition based on OPTION_MUSL for 64 bit targets.
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* config/linux.h (OPTION_MUSL): Redefine.
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* config/alpha/linux.h (OPTION_MUSL): Redefine.
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* config/rs6000/linux.h (OPTION_MUSL): Redefine.
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* config/rs6000/linux64.h (OPTION_MUSL): Redefine.
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From-SVN: r222905
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--- gcc/config/glibc-stdint.h
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+++ gcc/config/glibc-stdint.h
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@@ -22,6 +22,12 @@ a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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+/* Systems using musl libc should use this header and make sure
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+ OPTION_MUSL is defined correctly before using the TYPE macros. */
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+#ifndef OPTION_MUSL
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+#define OPTION_MUSL 0
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+#endif
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+
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#define SIG_ATOMIC_TYPE "int"
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#define INT8_TYPE "signed char"
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@@ -43,12 +49,12 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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#define UINT_LEAST64_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "long long unsigned int")
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#define INT_FAST8_TYPE "signed char"
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-#define INT_FAST16_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "int")
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-#define INT_FAST32_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "int")
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+#define INT_FAST16_TYPE (LONG_TYPE_SIZE == 64 && !OPTION_MUSL ? "long int" : "int")
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+#define INT_FAST32_TYPE (LONG_TYPE_SIZE == 64 && !OPTION_MUSL ? "long int" : "int")
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#define INT_FAST64_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "long long int")
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#define UINT_FAST8_TYPE "unsigned char"
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-#define UINT_FAST16_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "unsigned int")
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-#define UINT_FAST32_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "unsigned int")
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+#define UINT_FAST16_TYPE (LONG_TYPE_SIZE == 64 && !OPTION_MUSL ? "long unsigned int" : "unsigned int")
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+#define UINT_FAST32_TYPE (LONG_TYPE_SIZE == 64 && !OPTION_MUSL ? "long unsigned int" : "unsigned int")
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#define UINT_FAST64_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "long long unsigned int")
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#define INTPTR_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "int")
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--- gcc/config/linux.h
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+++ gcc/config/linux.h
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@@ -33,11 +33,13 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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#define OPTION_GLIBC (DEFAULT_LIBC == LIBC_GLIBC)
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#define OPTION_UCLIBC (DEFAULT_LIBC == LIBC_UCLIBC)
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#define OPTION_BIONIC (DEFAULT_LIBC == LIBC_BIONIC)
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+#undef OPTION_MUSL
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#define OPTION_MUSL (DEFAULT_LIBC == LIBC_MUSL)
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#else
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#define OPTION_GLIBC (linux_libc == LIBC_GLIBC)
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#define OPTION_UCLIBC (linux_libc == LIBC_UCLIBC)
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#define OPTION_BIONIC (linux_libc == LIBC_BIONIC)
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+#undef OPTION_MUSL
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#define OPTION_MUSL (linux_libc == LIBC_MUSL)
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#endif
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