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authorAndrew Dyer <adyer@righthandtech.com>2008-09-12 02:20:46 +0200
committerJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>2008-09-12 02:20:46 +0200
commit6e1551a870d360805b9d172dc56d935064abe71d (patch)
treec648dd1ae69f1f4cb28a8622e31db9af33ee12d2 /cpu/arm920t
parentb23253835f871cd9bd8e955b9a971d18a7d4ff56 (diff)
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arm920t fix constant error in start.S
Code in cpu/arm920t/start.S will die with a compilation error if CONFIG_STACKSIZE + CFG_MALLOC_LEN works out to an invalid constant for the ARM sub instruction. Change the code so that each is subtracted independently to avoid the error. Signed-off-by: Andrew Dyer <adyer@righthandtech.com>
Diffstat (limited to 'cpu/arm920t')
-rw-r--r--cpu/arm920t/start.S6
1 files changed, 4 insertions, 2 deletions
diff --git a/cpu/arm920t/start.S b/cpu/arm920t/start.S
index 62231f8..5d0fec6 100644
--- a/cpu/arm920t/start.S
+++ b/cpu/arm920t/start.S
@@ -315,7 +315,8 @@ cpu_init_crit:
sub sp, sp, #S_FRAME_SIZE
stmia sp, {r0 - r12} @ Calling r0-r12
ldr r2, _armboot_start
- sub r2, r2, #(CONFIG_STACKSIZE+CFG_MALLOC_LEN)
+ sub r2, r2, #(CONFIG_STACKSIZE)
+ sub r2, r2, #(CFG_MALLOC_LEN)
sub r2, r2, #(CFG_GBL_DATA_SIZE+8) @ set base 2 words into abort stack
ldmia r2, {r2 - r3} @ get pc, cpsr
add r0, sp, #S_FRAME_SIZE @ restore sp_SVC
@@ -348,7 +349,8 @@ cpu_init_crit:
.macro get_bad_stack
ldr r13, _armboot_start @ setup our mode stack
- sub r13, r13, #(CONFIG_STACKSIZE+CFG_MALLOC_LEN)
+ sub r13, r13, #(CONFIG_STACKSIZE)
+ sub r13, r13, #(CFG_MALLOC_LEN)
sub r13, r13, #(CFG_GBL_DATA_SIZE+8) @ reserved a couple spots in abort stack
str lr, [r13] @ save caller lr / spsr