diff options
Diffstat (limited to 'gdb/windows-nat.c')
| -rw-r--r-- | gdb/windows-nat.c | 59 |
1 files changed, 56 insertions, 3 deletions
diff --git a/gdb/windows-nat.c b/gdb/windows-nat.c index 731fc3e..20e3c67 100644 --- a/gdb/windows-nat.c +++ b/gdb/windows-nat.c @@ -40,7 +40,9 @@ #include <imagehlp.h> #include <psapi.h> #ifdef __CYGWIN__ +#include <wchar.h> #include <sys/cygwin.h> +#include <cygwin/version.h> #endif #include <signal.h> @@ -1963,6 +1965,28 @@ envvar_cmp (const void *a, const void *b) } #endif +#ifdef __CYGWIN__ +static void +clear_win32_environment (char **env) +{ + int i; + size_t len; + wchar_t *copy = NULL, *equalpos; + + for (i = 0; env[i] && *env[i]; i++) + { + len = mbstowcs (NULL, env[i], 0) + 1; + copy = (wchar_t *) xrealloc (copy, len * sizeof (wchar_t)); + mbstowcs (copy, env[i], len); + equalpos = wcschr (copy, L'='); + if (equalpos) + *equalpos = L'\0'; + SetEnvironmentVariableW (copy, NULL); + } + xfree (copy); +} +#endif + /* Start an inferior windows child process and sets inferior_ptid to its pid. EXEC_FILE is the file to run. ALLARGS is a string containing the arguments to the program. @@ -1980,6 +2004,8 @@ windows_create_inferior (struct target_ops *ops, char *exec_file, cygwin_buf_t *toexec; cygwin_buf_t *cygallargs; cygwin_buf_t *args; + char **old_env = NULL; + PWCHAR w32_env; size_t len; int tty; int ostdin, ostdout, ostderr; @@ -2066,8 +2092,23 @@ windows_create_inferior (struct target_ops *ops, char *exec_file, strcat (args, cygallargs); #endif - /* Prepare the environment vars for CreateProcess. */ - cygwin_internal (CW_SYNC_WINENV); +#ifdef CW_CVT_ENV_TO_WINENV + /* First try to create a direct Win32 copy of the POSIX environment. */ + w32_env = (PWCHAR) cygwin_internal (CW_CVT_ENV_TO_WINENV, in_env); + if (w32_env != (PWCHAR) -1) + flags |= CREATE_UNICODE_ENVIRONMENT; + else + /* If that fails, fall back to old method tweaking GDB's environment. */ +#endif + { + /* Reset all Win32 environment variables to avoid leftover on next run. */ + clear_win32_environment (environ); + /* Prepare the environment vars for CreateProcess. */ + old_env = environ; + environ = in_env; + cygwin_internal (CW_SYNC_WINENV); + w32_env = NULL; + } if (!inferior_io_terminal) tty = ostdin = ostdout = ostderr = -1; @@ -2097,10 +2138,22 @@ windows_create_inferior (struct target_ops *ops, char *exec_file, NULL, /* thread */ TRUE, /* inherit handles */ flags, /* start flags */ - NULL, /* environment */ + w32_env, /* environment */ NULL, /* current directory */ &si, &pi); + if (w32_env) + /* Just free the Win32 environment, if it could be created. */ + free (w32_env); + else + { + /* Reset all environment variables to avoid leftover on next run. */ + clear_win32_environment (in_env); + /* Restore normal GDB environment variables. */ + environ = old_env; + cygwin_internal (CW_SYNC_WINENV); + } + if (tty >= 0) { close (tty); |