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(copy_text_and_data) [DJGPP >= 2]: Switch off two bits

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in `_crt0_startup_flags' so they don't go into the dumped Emacs.
Restore the value of `_crt0_startup_flags' after .text and .data
were dumped.
This commit is contained in:
Karl Heuer 1996-07-19 19:47:26 +00:00
parent 22549f8ba2
commit c17a2102aa
1 changed files with 10 additions and 0 deletions
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10
src/unexec.c
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@ -178,6 +178,8 @@ int need_coff_header = 1;
#ifdef MSDOS
#if __DJGPP__ > 1
#include <fcntl.h> /* for O_RDONLY, O_RDWR */
#include <crt0.h> /* for _crt0_startup_flags and its bits */
static int save_djgpp_startup_flags;
#endif
#include <coff.h>
#define filehdr external_filehdr
@ -884,6 +886,11 @@ copy_text_and_data (new, a_out)
/* Dump the original table of exception handlers, not the one
where our exception hooks are registered. */
__djgpp_exception_toggle ();
/* Switch off startup flags that might have been set at runtime
and which might change the way that dumped Emacs works. */
save_djgpp_startup_flags = _crt0_startup_flags;
_crt0_startup_flags &= ~(_CRT0_FLAG_NO_LFN | _CRT0_FLAG_NEARPTR);
#endif
#endif
@ -905,6 +912,9 @@ copy_text_and_data (new, a_out)
#if __DJGPP__ >= 2
/* Restore our exception hooks. */
__djgpp_exception_toggle ();
/* Restore the startup flags. */
_crt0_startup_flags = save_djgpp_startup_flags;
#endif
#endif