2379866c3b
Since commit 139c1837db ("meson: rename included C source files
to .c.inc"), QEMU standard procedure for included C files is to
use *.c.inc.
Besides, since commit 6a0057aa22 ("docs/devel: make a statement
about includes") this is documented in the Coding Style:
If you do use template header files they should be named with
the ``.c.inc`` or ``.h.inc`` suffix to make it clear they are
being included for expansion.
Therefore rename "exec/helper-head.h" as "exec/helper-head.h.inc".
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240424173333.96148-4-philmd@linaro.org>
69 lines
2.6 KiB
PHP
69 lines
2.6 KiB
PHP
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Helper file for declaring TCG helper functions.
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* This one expands prototypes for the helper functions.
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* Define HELPER_H for the header file to be expanded.
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*/
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#include "exec/helper-head.h.inc"
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/*
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* Work around an issue with --enable-lto, in which GCC's ipa-split pass
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* decides to split out the noreturn code paths that raise an exception,
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* taking the __builtin_return_address() along into the new function,
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* where it no longer computes a value that returns to TCG generated code.
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* Despite the name, the noinline attribute affects splitter, so this
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* prevents the optimization in question. Given that helpers should not
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* otherwise be called directly, this should not have any other visible effect.
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*
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* See https://gitlab.com/qemu-project/qemu/-/issues/1454
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*/
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#define DEF_HELPER_ATTR __attribute__((noinline))
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#define DEF_HELPER_FLAGS_0(name, flags, ret) \
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dh_ctype(ret) HELPER(name) (void) DEF_HELPER_ATTR;
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#define DEF_HELPER_FLAGS_1(name, flags, ret, t1) \
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dh_ctype(ret) HELPER(name) (dh_ctype(t1)) DEF_HELPER_ATTR;
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#define DEF_HELPER_FLAGS_2(name, flags, ret, t1, t2) \
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dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2)) DEF_HELPER_ATTR;
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#define DEF_HELPER_FLAGS_3(name, flags, ret, t1, t2, t3) \
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dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), \
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dh_ctype(t3)) DEF_HELPER_ATTR;
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#define DEF_HELPER_FLAGS_4(name, flags, ret, t1, t2, t3, t4) \
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dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), dh_ctype(t3), \
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dh_ctype(t4)) DEF_HELPER_ATTR;
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#define DEF_HELPER_FLAGS_5(name, flags, ret, t1, t2, t3, t4, t5) \
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dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), dh_ctype(t3), \
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dh_ctype(t4), dh_ctype(t5)) DEF_HELPER_ATTR;
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#define DEF_HELPER_FLAGS_6(name, flags, ret, t1, t2, t3, t4, t5, t6) \
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dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), dh_ctype(t3), \
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dh_ctype(t4), dh_ctype(t5), \
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dh_ctype(t6)) DEF_HELPER_ATTR;
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#define DEF_HELPER_FLAGS_7(name, flags, ret, t1, t2, t3, t4, t5, t6, t7) \
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dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), dh_ctype(t3), \
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dh_ctype(t4), dh_ctype(t5), dh_ctype(t6), \
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dh_ctype(t7)) DEF_HELPER_ATTR;
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#define IN_HELPER_PROTO
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#include HELPER_H
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#undef IN_HELPER_PROTO
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#undef DEF_HELPER_FLAGS_0
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#undef DEF_HELPER_FLAGS_1
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#undef DEF_HELPER_FLAGS_2
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#undef DEF_HELPER_FLAGS_3
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#undef DEF_HELPER_FLAGS_4
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#undef DEF_HELPER_FLAGS_5
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#undef DEF_HELPER_FLAGS_6
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#undef DEF_HELPER_FLAGS_7
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#undef DEF_HELPER_ATTR
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