File size: 1,533 Bytes
1e94262 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 | #!/usr/bin/env php
<?php
$rootDir = dirname(__DIR__, 2);
$mainDir = sprintf('%s/main', $rootDir);
$outputFile = sprintf('%s/debug_gdb_scripts.c', $mainDir);
printf("Generating %s\n", $outputFile);
$gdbscript = file_get_contents(sprintf("%s/.gdbinit", $rootDir));
$pyscript = file_get_contents(sprintf("%s/php_gdb.py", __DIR__));
// We can not inline .gdbinit, but we can embed it in the python script.
$pyscript = sprintf(
"gdb.execute('''\n%s\n''')\n%s",
addcslashes($gdbscript, '\'\\'),
$pyscript,
);
$ccode = sprintf(
<<<'C'
/*
* Generated by %s.
*
* This inlines .gdbinit and php_gdb.py into the .debug_gdb_scripts
* section of the binary, so that they can be found by gdb.
*
* See https://sourceware.org/gdb/current/onlinedocs/gdb.html/dotdebug_005fgdb_005fscripts-section.html#dotdebug_005fgdb_005fscripts-section
*/
asm(
".pushsection \".debug_gdb_scripts\", \"MS\",%%progbits,1\n"
".byte 4 /* Python Text */\n"
".ascii \"gdb.inlined-script\\n\"\n"
%s
".byte 0\n"
".popsection\n"
);
C,
basename(__FILE__),
implode("\n ", array_map(function ($line) {
$escapedPy = addcslashes($line."\n", "\"\n\\");
$escapedAsm = addcslashes(sprintf(".ascii \"%s\"\n", $escapedPy), "\"\n\\?");
return sprintf('"%s"', $escapedAsm);
}, explode("\n", $pyscript))),
);
$len = file_put_contents($outputFile, $ccode);
if ($len !== strlen($ccode)) {
printf("Failed\n");
exit(1);
}
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