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authorØyvind Harboe <oyvind.harboe@zylin.com>2009-11-22 19:57:57 +0100
committerØyvind Harboe <oyvind.harboe@zylin.com>2009-11-22 19:57:57 +0100
commit5985dee35da3ea24f1c9cb30b6cd50aa1bc63660 (patch)
tree81d36a0aef73e646f2ed0bbc27a7084356f900e8
parentbcebce3ce25465589d379c809a12e2beda8430b9 (diff)
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arm11: do not use dynamic arrays
Allocate working memory dynamically, caught by checkstack.pl Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
-rw-r--r--TODO3
-rw-r--r--src/target/arm11_dbgtap.c9
2 files changed, 8 insertions, 4 deletions
diff --git a/TODO b/TODO
index c7e341d9..bdbb0ecc 100644
--- a/TODO
+++ b/TODO
@@ -309,7 +309,8 @@ fairly easy to complete:
- use dynamic allocations for working memory. Scan & fix code
for excessive stack allocations. take linux/scripts/checkstack.pl and
-see what the worst offenders are. Example, on amd64:
+see what the worst offenders are. Dynamic stack allocations are found
+at the bottom of the list below. Example, on amd64:
$ objdump -d | checkstack.pl | head -10
0x004311e3 image_open [openocd]: 13464
diff --git a/src/target/arm11_dbgtap.c b/src/target/arm11_dbgtap.c
index 0f7e4953..26de4ceb 100644
--- a/src/target/arm11_dbgtap.c
+++ b/src/target/arm11_dbgtap.c
@@ -880,10 +880,11 @@ int arm11_sc7_run(struct arm11_common * arm11, struct arm11_sc7_action * actions
*/
void arm11_sc7_clear_vbw(struct arm11_common * arm11)
{
- struct arm11_sc7_action clear_bw[arm11->brp + arm11->wrp + 1];
+ size_t clear_bw_size = arm11->brp + arm11->wrp + 1;
+ struct arm11_sc7_action *clear_bw = malloc(sizeof(struct arm11_sc7_action) * clear_bw_size);
struct arm11_sc7_action * pos = clear_bw;
- for (size_t i = 0; i < ARRAY_SIZE(clear_bw); i++)
+ for (size_t i = 0; i < clear_bw_size; i++)
{
clear_bw[i].write = true;
clear_bw[i].value = 0;
@@ -899,7 +900,9 @@ void arm11_sc7_clear_vbw(struct arm11_common * arm11)
(pos++)->address = ARM11_SC7_VCR;
- arm11_sc7_run(arm11, clear_bw, ARRAY_SIZE(clear_bw));
+ arm11_sc7_run(arm11, clear_bw, clear_bw_size);
+
+ free (clear_bw);
}
/** Write VCR register