m2-internship/libunwind-eh_elf
1
0
Fork 0
mirror of https://github.com/tobast/libunwind-eh_elf.git synced 2025-01-09 19:03:43 +01:00
Code Issues Releases Activity

Remove the ARM_EXIDX_TABLE_MALLOC code path.

Browse source 
Using malloc is not an option since unw_init_local and unw_step are supposed
to be async signal safe. Therefore this code path can be removed.

Signed-off-by: Ken Werner <ken.werner@linaro.org>
This commit is contained in:
Ken Werner 2011-03-23 15:55:04 +00:00 committed by Arun Sharma
parent 6296ff1fb2
commit f053677198
2 changed files with 2 additions and 30 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
include/tdep-arm/ex_tables.h
View file

@ -36,9 +36,6 @@ struct arm_exidx_table {
struct arm_exidx_entry *end;
void *start_addr;
void *end_addr;
#ifdef ARM_EXIDX_TABLE_MALLOC
struct arm_exidx_table *next;
#endif
};
typedef enum arm_exbuf_cmd {

29
src/arm/ex_tables.c
View file

@ -33,18 +33,15 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
#define ARM_EXTBL_OP_FINISH 0xb0
#define ARM_EXIDX_TABLE_LIMIT 32
enum arm_exbuf_cmd_flags {
ARM_EXIDX_VFP_SHIFT_16 = 1 << 16,
ARM_EXIDX_VFP_DOUBLE = 1 << 17,
};
#ifdef ARM_EXIDX_TABLE_MALLOC
static struct arm_exidx_table *arm_exidx_table_list;
#else
#define ARM_EXIDX_TABLE_LIMIT 32
static struct arm_exidx_table arm_exidx_tables[ARM_EXIDX_TABLE_LIMIT];
static unsigned arm_exidx_table_count = 0;
#endif
static inline uint32_t
prel31_read (uint32_t prel31)
@ -62,33 +59,16 @@ prel31_to_addr (void *addr)
static void
arm_exidx_table_reset_all (void)
{
#ifdef ARM_EXIDX_TABLE_MALLOC
while (NULL != arm_exidx_table_list)
{
struct arm_exidx_table *next = arm_exidx_table_list->next;
free (arm_exidx_table_list);
arm_exidx_table_list = next;
}
#else
arm_exidx_table_count = 0;
#endif
}
HIDDEN int
arm_exidx_table_add (const char *name,
struct arm_exidx_entry *start, struct arm_exidx_entry *end)
{
#ifdef ARM_EXIDX_TABLE_MALLOC
struct arm_exidx_table *table = malloc (sizeof (*table));
if (NULL == table)
return -1;
table->next = arm_exidx_table_list;
arm_exidx_table_list = table;
#else
if (arm_exidx_table_count >= ARM_EXIDX_TABLE_LIMIT)
return -1;
struct arm_exidx_table *table = &arm_exidx_tables[arm_exidx_table_count++];
#endif
table->name = name;
table->start = start;
table->end = end;
@ -106,15 +86,10 @@ HIDDEN struct arm_exidx_table *
arm_exidx_table_find (void *pc)
{
struct arm_exidx_table *table;
#ifdef ARM_EXIDX_TABLE_MALLOC
for (table = arm_exidx_table_list; table != NULL; table = table->next)
{
#else
unsigned i;
for (i = 0; i < arm_exidx_table_count; i++)
{
table = &arm_exidx_tables[i];
#endif
if (pc >= table->start_addr && pc < table->end_addr)
return table;
}