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binutils-gdb
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2012-04-02 Tristan Gingold <gingold@adacore.com> 

PR gdb/13901
	* darwin-nat.c (darwin_execvp): Sey binary preference.
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Tristan Gingold 2012-04-02 11:57:30 +00:00
parent cf65ecd3b9
commit ece0061f93
2 changed files with 22 additions and 0 deletions
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gdb/ChangeLog
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@ -1,3 +1,8 @@
2012-04-02 Tristan Gingold <gingold@adacore.com>
PR gdb/13901
* darwin-nat.c (darwin_execvp): Sey binary preference.
2012-04-02 Jan Kratochvil <jan.kratochvil@redhat.com>
* NEWS (set breakpoint condition-evaluation): Use imperative mood.

17
gdb/darwin-nat.c
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@ -39,6 +39,7 @@
#include "value.h"
#include "arch-utils.h"
#include "bfd.h"
#include "bfd/mach-o.h"
#include <sys/ptrace.h>
#include <sys/signal.h>
@ -1538,6 +1539,22 @@ darwin_execvp (const char *file, char * const argv[], char * const env[])
return;
}
/* Specify the same binary preference to spawn the shell as the
exec binary. This avoids spawning a 64bit shell while debugging
a 32bit program, which may confuse gdb.
Also, this slightly breaks internal layers as we suppose the binary
is Mach-O. Doesn't harm in practice. */
if (exec_bfd != NULL)
{
cpu_type_t pref;
size_t ocount;
pref = bfd_mach_o_get_data (exec_bfd)->header.cputype;
res = posix_spawnattr_setbinpref_np (&attr, 1, &pref, &ocount);
if (res != 0 || ocount != 1)
fprintf_unfiltered (gdb_stderr, "Cannot set posix_spawn binpref\n");
}
posix_spawnp (NULL, argv[0], NULL, &attr, argv, env);
}