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5fe70629ce
This patch introduces a new macro, INIT_GDB_FILE. This is used to
replace the current "_initialize_" idiom when introducing a per-file
initialization function. That is, rather than write:
void _initialize_something ();
void
_initialize_something ()
{
...
}
... now you would write:
INIT_GDB_FILE (something)
{
...
}
The macro handles both the declaration and definition of the function.
The point of this approach is that it makes it harder to accidentally
cause an initializer to be omitted; see commit 2711e475 ("Ensure
cooked_index_entry self-tests are run"). Specifically, the regexp now
used by make-init-c seems harder to trick.
New in v2: un-did some erroneous changes made by the script.
The bulk of this patch was written by script.
Regression tested on x86-64 Fedora 41.
73 lines
2.3 KiB
Bash
Executable File
73 lines
2.3 KiB
Bash
Executable File
#!/bin/sh
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# Copyright (C) 2013-2025 Free Software Foundation, Inc.
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#
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# This file is part of GDB.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# Generate the init.c source file.
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#
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# Usage:
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#
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# ./make-init-c source-files > init.c-tmp
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#
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# Where SOURCE-FILES is the list of source files to extract init functions from.
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#
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# An initialization function is introduced using the "INIT_GDB_FILE"
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# macro. In ordinary code this expands to a function declaration (to
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# avoid a warning) and then the start of a definition. In the
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# generated init.c, though, it is expanded differently. For example:
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#
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# INIT_GDB_FILE (foo)
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# {
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# ...
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# }
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#
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# Abort on command error.
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set -e
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echo "/* Do not modify this file. */"
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echo "/* It is created automatically by the Makefile. */"
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echo "#include <algorithm>"
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echo ""
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echo "#undef INIT_GDB_FILE"
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echo "#define INIT_GDB_FILE(NAME) extern void _initialize_ ## NAME ();"
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grep -h '^[ ]*INIT_GDB_FILE\b' "$@"
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echo ""
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echo "void initialize_all_files ();"
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echo "void"
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echo "initialize_all_files ()"
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echo "{"
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echo " typedef void initialize_file_ftype (void);"
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echo ""
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echo " std::vector<initialize_file_ftype *> functions ="
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echo " {"
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echo "#undef INIT_GDB_FILE"
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echo "#define INIT_GDB_FILE(NAME) _initialize_ ## NAME,"
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grep -h '^[ ]*INIT_GDB_FILE\b' "$@"
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echo " };"
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echo ""
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echo " /* If GDB_REVERSE_INIT_FUNCTIONS is set (any value), reverse the"
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echo " order in which initialization functions are called. This is"
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echo " used by the testsuite. */"
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echo " if (getenv (\"GDB_REVERSE_INIT_FUNCTIONS\") != nullptr)"
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echo " std::reverse (functions.begin (), functions.end ());"
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echo ""
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echo " for (initialize_file_ftype *function : functions)"
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echo " function ();"
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echo "}"
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