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| author | DJ Delorie <dj@redhat.com> | 2005-07-28 20:08:15 +0000 |
|---|---|---|
| committer | DJ Delorie <dj@redhat.com> | 2005-07-28 20:08:15 +0000 |
| commit | 8980686623b0a9734f23edbf48b6dc7a803cec8b (patch) | |
| tree | b21a8d48de92bf33803abc74bad376cc96571d4f | |
| parent | bec15d1f6a5e20b2fd3cb498745a696280c030ee (diff) | |
| download | gdb-8980686623b0a9734f23edbf48b6dc7a803cec8b.zip gdb-8980686623b0a9734f23edbf48b6dc7a803cec8b.tar.gz gdb-8980686623b0a9734f23edbf48b6dc7a803cec8b.tar.bz2 | |
* ldlang.c (lang_output_section_statement_lookup_1): Don't cast a
unary & address operator, as that breaks GCC's strict aliasing
rules.
| -rw-r--r-- | ld/ChangeLog | 6 | ||||
| -rw-r--r-- | ld/ldlang.c | 7 |
2 files changed, 12 insertions, 1 deletions
diff --git a/ld/ChangeLog b/ld/ChangeLog index 460fb39..d218b95 100644 --- a/ld/ChangeLog +++ b/ld/ChangeLog @@ -1,3 +1,9 @@ +2005-07-28 DJ Delorie <dj@redhat.com> + + * ldlang.c (lang_output_section_statement_lookup_1): Don't cast a + unary & address operator, as that breaks GCC's strict aliasing + rules. + 2005-07-25 Jan Hubicka <jh@suse.cz> H.J. Lu <hongjiu.lu@intel.com> diff --git a/ld/ldlang.c b/ld/ldlang.c index dc8aa14..7cdb7c8 100644 --- a/ld/ldlang.c +++ b/ld/ldlang.c @@ -1010,6 +1010,7 @@ static lang_output_section_statement_type * lang_output_section_statement_lookup_1 (const char *const name, int constraint) { lang_output_section_statement_type *lookup; + lang_output_section_statement_type **nextp; lookup = lang_output_section_find_1 (name, constraint); if (lookup == NULL) @@ -1038,9 +1039,13 @@ lang_output_section_statement_lookup_1 (const char *const name, int constraint) lookup->update_dot_tree = NULL; lookup->phdrs = NULL; + /* GCC's strict aliasing rules prevent us from just casting the + address, so we store the pointer in a variable and cast that + instead. */ + nextp = &lookup->next; lang_statement_append (&lang_output_section_statement, (lang_statement_union_type *) lookup, - (lang_statement_union_type **) &lookup->next); + (lang_statement_union_type **) nextp); } return lookup; } |