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| author | Denis Vlasenko <vda.linux@googlemail.com> | 2009-02-26 11:21:04 +0000 |
|---|---|---|
| committer | Denis Vlasenko <vda.linux@googlemail.com> | 2009-02-26 11:21:04 +0000 |
| commit | 9aa5c652e9335650428fddc0b84037853a06256c (patch) | |
| tree | fca2a743021743649528f130dfd4a29193ad1238 /editors | |
| parent | 8e5de2aab7421677fd92a5f24da3d2a99dacf9f1 (diff) | |
| download | busybox-9aa5c652e9335650428fddc0b84037853a06256c.tar.gz | |
unzip: fix thinko with le/be conv and size (closes bug 129)
awk: make "struct global" hack more robust wrt alignment (closes bug 131)
Diffstat (limited to 'editors')
| -rw-r--r-- | editors/awk.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/editors/awk.c b/editors/awk.c index bac580497..3f8368c8f 100644 --- a/editors/awk.c +++ b/editors/awk.c @@ -389,8 +389,12 @@ static const uint16_t PRIMES[] ALIGN2 = { 251, 1021, 4093, 16381, 65521 }; /* Globals. Split in two parts so that first one is addressed - * with (mostly short) negative offsets */ + * with (mostly short) negative offsets. + * NB: it's unsafe to put members of type "double" + * into globals2 (gcc may fail to align them). + */ struct globals { + double t_double; chain beginseq, mainseq, endseq; chain *seq; node *break_ptr, *continue_ptr; @@ -439,16 +443,16 @@ struct globals2 { tsplitter exec_builtin__tspl; /* biggest and least used members go last */ - double t_double; tsplitter fsplitter, rsplitter; }; #define G1 (ptr_to_globals[-1]) #define G (*(struct globals2 *)ptr_to_globals) /* For debug. nm --size-sort awk.o | grep -vi ' [tr] ' */ -/* char G1size[sizeof(G1)]; - 0x6c */ -/* char Gsize[sizeof(G)]; - 0x1cc */ +/*char G1size[sizeof(G1)]; - 0x74 */ +/*char Gsize[sizeof(G)]; - 0x1c4 */ /* Trying to keep most of members accessible with short offsets: */ -/* char Gofs_seed[offsetof(struct globals2, evaluate__seed)]; - 0x90 */ +/*char Gofs_seed[offsetof(struct globals2, evaluate__seed)]; - 0x90 */ +#define t_double (G1.t_double ) #define beginseq (G1.beginseq ) #define mainseq (G1.mainseq ) #define endseq (G1.endseq ) @@ -476,7 +480,6 @@ struct globals2 { #define t_info (G.t_info ) #define t_tclass (G.t_tclass ) #define t_string (G.t_string ) -#define t_double (G.t_double ) #define t_lineno (G.t_lineno ) #define t_rollback (G.t_rollback ) #define intvar (G.intvar ) |