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| author | Senthil Kumar Selvaraj <senthil_kumar.selvaraj@atmel.com> | 2012-09-04 09:08:50 +0000 |
|---|---|---|
| committer | Georg-Johann Lay <gjl@gcc.gnu.org> | 2012-09-04 09:08:50 +0000 |
| commit | cee8f252d70e664c198070ef60ddc15d06176dad (patch) | |
| tree | 734988fbfc6dce3a5783355db433dce4a14a4646 | |
| parent | 3474210e8c456af82a982db5b388aedc7ba5cd4c (diff) | |
| download | gcc-cee8f252d70e664c198070ef60ddc15d06176dad.zip gcc-cee8f252d70e664c198070ef60ddc15d06176dad.tar.gz gcc-cee8f252d70e664c198070ef60ddc15d06176dad.tar.bz2 | |
re PR target/54220 ([avr] Potential stack corruption in naked functions at -O0)
PR target/54220
* config/avr/avr.c (TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS): New
define to...
(avr_allocate_stack_slots_for_args): ...this new static function.
From-SVN: r190914
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/config/avr/avr.c | 13 |
2 files changed, 20 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index d034c10..70aecdd 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2012-09-04 Senthil Kumar Selvaraj <senthil_kumar.selvaraj@atmel.com> + + PR target/54220 + * config/avr/avr.c (TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS): New + define to... + (avr_allocate_stack_slots_for_args): ...this new static function. + 2012-09-04 Christophe Lyon <christophe.lyon@linaro.org> * config/arm/arm.c (arm_expand_builtin): Replace gen_rtx_CONST_INT diff --git a/gcc/config/avr/avr.c b/gcc/config/avr/avr.c index c1753300..bab13a4 100644 --- a/gcc/config/avr/avr.c +++ b/gcc/config/avr/avr.c @@ -700,6 +700,16 @@ avr_regs_to_save (HARD_REG_SET *set) return count; } + +/* Implement `TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS' */ + +static bool +avr_allocate_stack_slots_for_args (void) +{ + return !cfun->machine->is_naked; +} + + /* Return true if register FROM can be eliminated via register TO. */ static bool @@ -11339,6 +11349,9 @@ avr_fold_builtin (tree fndecl, int n_args ATTRIBUTE_UNUSED, tree *arg, #undef TARGET_CAN_ELIMINATE #define TARGET_CAN_ELIMINATE avr_can_eliminate +#undef TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS +#define TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS avr_allocate_stack_slots_for_args + #undef TARGET_WARN_FUNC_RETURN #define TARGET_WARN_FUNC_RETURN avr_warn_func_return |