diff options
| author | Denys Vlasenko <vda.linux@googlemail.com> | 2014-01-13 11:45:34 +0100 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2014-01-13 11:45:34 +0100 |
| commit | d74f8435ea7479fe558efa63c2ecc9aed5662db2 (patch) | |
| tree | a29db0523f242d5506c94c1090bf4ee6675947dd /docs | |
| parent | 0f592d7fb94c5887528d0ee24020c2225ab71c28 (diff) | |
| download | busybox-w32-d74f8435ea7479fe558efa63c2ecc9aed5662db2.tar.gz busybox-w32-d74f8435ea7479fe558efa63c2ecc9aed5662db2.tar.bz2 busybox-w32-d74f8435ea7479fe558efa63c2ecc9aed5662db2.zip | |
docs: tweak keep_data_small.txt
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/keep_data_small.txt | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/docs/keep_data_small.txt b/docs/keep_data_small.txt index 9fc799646..3ced1a61d 100644 --- a/docs/keep_data_small.txt +++ b/docs/keep_data_small.txt | |||
| @@ -103,7 +103,15 @@ smaller code. In order to assign it, use SET_PTR_TO_GLOBALS macro: | |||
| 103 | 103 | ||
| 104 | SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); | 104 | SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); |
| 105 | 105 | ||
| 106 | Typically it is done in <applet>_main(). | 106 | Typically it is done in <applet>_main(). Another variation is |
| 107 | to use stack: | ||
| 108 | |||
| 109 | int <applet>_main(...) | ||
| 110 | { | ||
| 111 | #undef G | ||
| 112 | struct globals G; | ||
| 113 | memset(&G, 0, sizeof(G)); | ||
| 114 | SET_PTR_TO_GLOBALS(&G); | ||
| 107 | 115 | ||
| 108 | Now you can reference "globals" by G.a, G.buf and so on, in any function. | 116 | Now you can reference "globals" by G.a, G.buf and so on, in any function. |
| 109 | 117 | ||