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| author | Tristan Gingold <gingold@adacore.com> | 2012-04-02 11:57:30 +0000 |
|---|---|---|
| committer | Tristan Gingold <gingold@adacore.com> | 2012-04-02 11:57:30 +0000 |
| commit | ece0061f93a5a99e3f5b063d271267b6414cd129 (patch) | |
| tree | f0620d27dca274edddf58722ea36cb87948cb629 | |
| parent | cf65ecd3b9293e2710da931249638cedded6a737 (diff) | |
| download | gdb-ece0061f93a5a99e3f5b063d271267b6414cd129.zip gdb-ece0061f93a5a99e3f5b063d271267b6414cd129.tar.gz gdb-ece0061f93a5a99e3f5b063d271267b6414cd129.tar.bz2 | |
2012-04-02 Tristan Gingold <gingold@adacore.com>
PR gdb/13901
* darwin-nat.c (darwin_execvp): Sey binary preference.
| -rw-r--r-- | gdb/ChangeLog | 5 | ||||
| -rw-r--r-- | gdb/darwin-nat.c | 17 |
2 files changed, 22 insertions, 0 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 9a0a720..f76ee76 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -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. diff --git a/gdb/darwin-nat.c b/gdb/darwin-nat.c index de661a3..010700c 100644 --- a/gdb/darwin-nat.c +++ b/gdb/darwin-nat.c @@ -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); } |