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* dcrt0.cc (dll_crt0_1): Copy argv before passing to main().

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This commit is contained in:
Christopher Faylor 2011-10-17 18:25:04 +00:00
parent e4257c7366
commit ce68abe0b4
2 changed files with 16 additions and 1 deletions
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4
winsup/cygwin/ChangeLog
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@ -1,3 +1,7 @@
2011-10-17 Christopher Faylor <me.cygwin2011@cgf.cx>
* dcrt0.cc (dll_crt0_1): Copy argv before passing to main().
2011-10-17 Christopher Faylor <me.cygwin2011@cgf.cx> 2011-10-17 Christopher Faylor <me.cygwin2011@cgf.cx>
* sigproc.cc (proc_terminate): Avoid setting ppid to 1 if we're execing. * sigproc.cc (proc_terminate): Avoid setting ppid to 1 if we're execing.

13
winsup/cygwin/dcrt0.cc
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@ -894,7 +894,18 @@ dll_crt0_1 (void *)
_setlocale_r (_REENT, LC_CTYPE, "C"); _setlocale_r (_REENT, LC_CTYPE, "C");
if (user_data->main) if (user_data->main)
cygwin_exit (user_data->main (__argc, __argv, *user_data->envptr)); {
/* Create a copy of Cygwin's version of __argv so that, if the user makes
a change to an element of argv[] it does not affect Cygwin's argv.
Changing the the contents of what argv[n] points to will still
affect Cygwin. This is similar (but not exactly like) Linux. */
char *newargv[__argc + 1];
char **nav = newargv;
char **oav = __argv;
while ((*nav++ = *oav++) != NULL)
continue;
cygwin_exit (user_data->main (__argc, newargv, *user_data->envptr));
}
__asm__ (" \n\ __asm__ (" \n\
.global __cygwin_exit_return \n\ .global __cygwin_exit_return \n\
__cygwin_exit_return: \n\ __cygwin_exit_return: \n\