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6ed2e09f3a
- This idea originates from very early in the project and was, at the
time, a very easy way to categorise things.
- Now, it doesn't really make much sense - it is fairly arbitary, often
occuring when there is a change in kernel, but not from builder-hex0
to fiwix, and sysb is in reality completely unnecessary.
- In short, the sys* stuff is a bit of a mess that makes the project
more difficult to understand.
- This puts everything down into one folder and has a manifest file that
is used to generate the build scripts on the fly rather than using
coded scripts.
- This is created in the "seed" stage.
stage0-posix -- (calls) --> seed -- (generates) --> main steps
Alongside this change there are a variety of other smaller fixups to the
general structure of the live-bootstrap rootfs.
- Creating a rootfs has become much simpler and is defined as code in
go.sh. The new structure, for an about-to-be booted system, is
/
-- /steps (direct copy of steps/)
-- /distfiles (direct copy of distfiles/)
-- all files from seed/*
-- all files from seed/stage0-posix/*
- There is no longer such a thing as /usr/include/musl, this didn't
really make any sense, as musl is the final libc used. Rather, to
separate musl and mes, we have /usr/include/mes, which is much easier
to work with.
- This also makes mes easier to blow away later.
- A few things that weren't properly in packages have been changed;
checksum-transcriber, simple-patch, kexec-fiwix have all been given
fully qualified package names.
- Highly breaking change, scripts now exist in their package directory
but NOT WITH THE packagename.sh. Rather, they use pass1.sh, pass2.sh,
etc. This avoids manual definition of passes.
- Ditto with patches; default directory is patches, but then any patch
series specific to a pass are named patches-passX.
45 lines
1.7 KiB
Diff
45 lines
1.7 KiB
Diff
SPDX-FileCopyrightText: 2023 fosslinux <fosslinux@aussies.space>
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SPDX-FileCopyrightText: 2014 Joseph Myers <joseph@codesourcery.com>
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SPDX-License-Identifier: GPL-3.0-or-later
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GCC 10 uses a variety of compiler builtin macros in libgcc.
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These macros do not exist in GCC 4.7, so we add them in.
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(Taken straight from GCC 10).
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(We could -D them in GCC 10, but this is a simpler unobtrusive
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solution, and is arguably more correct).
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--- gcc/c-family/c-cppbuiltin.c 2023-01-25 16:56:44.122222376 +1100
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+++ gcc/c-family/c-cppbuiltin.c 2023-01-25 17:01:52.500855016 +1100
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@@ -850,6 +850,30 @@
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builtin_define_with_int_value ("__LIBGCC_TRAMPOLINE_SIZE__",
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TRAMPOLINE_SIZE);
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+ /* For libgcc unwinder code. */
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+#ifdef DONT_USE_BUILTIN_SETJMP
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+ cpp_define (pfile, "__LIBGCC_DONT_USE_BUILTIN_SETJMP__");
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+#endif
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+#ifdef DWARF_ALT_FRAME_RETURN_COLUMN
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+ builtin_define_with_int_value ("__LIBGCC_DWARF_ALT_FRAME_RETURN_COLUMN__",
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+ DWARF_ALT_FRAME_RETURN_COLUMN);
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+#endif
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+ builtin_define_with_int_value ("__LIBGCC_DWARF_FRAME_REGISTERS__",
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+ DWARF_FRAME_REGISTERS);
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+#ifdef EH_RETURN_STACKADJ_RTX
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+ cpp_define (pfile, "__LIBGCC_EH_RETURN_STACKADJ_RTX__");
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+#endif
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+#ifdef JMP_BUF_SIZE
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+ builtin_define_with_int_value ("__LIBGCC_JMP_BUF_SIZE__",
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+ JMP_BUF_SIZE);
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+#endif
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+ builtin_define_with_int_value ("__LIBGCC_STACK_POINTER_REGNUM__",
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+ STACK_POINTER_REGNUM);
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+
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+ /* For libgcov. */
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+ builtin_define_with_int_value ("__LIBGCC_VTABLE_USES_DESCRIPTORS__",
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+ TARGET_VTABLE_USES_DESCRIPTORS);
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+
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/* For use in assembly language. */
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builtin_define_with_value ("__REGISTER_PREFIX__", REGISTER_PREFIX, 0);
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builtin_define_with_value ("__USER_LABEL_PREFIX__", user_label_prefix, 0);
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