diff options
Diffstat (limited to 'gdb/arm-tdep.c')
-rw-r--r-- | gdb/arm-tdep.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/gdb/arm-tdep.c b/gdb/arm-tdep.c index 8fdb1e5..1539d0d 100644 --- a/gdb/arm-tdep.c +++ b/gdb/arm-tdep.c @@ -297,12 +297,28 @@ arm_saved_pc_after_call (struct frame_info *frame) return ADDR_BITS_REMOVE (read_register (LR_REGNUM)); } +/* Determine whether the function invocation represented by FI has a + frame on the stack associated with it. If it does return zero, + otherwise return 1. */ + int arm_frameless_function_invocation (struct frame_info *fi) { CORE_ADDR func_start, after_prologue; int frameless; + /* Sometimes we have functions that do a little setup (like saving the + vN registers with the stmdb instruction, but DO NOT set up a frame. + The symbol table will report this as a prologue. However, it is + important not to try to parse these partial frames as frames, or we + will get really confused. + + So I will demand 3 instructions between the start & end of the + prologue before I call it a real prologue, i.e. at least + mov ip, sp, + stmdb sp!, {} + sub sp, ip, #4. */ + func_start = (get_pc_function_start ((fi)->pc) + FUNCTION_START_OFFSET); after_prologue = SKIP_PROLOGUE (func_start); @@ -314,6 +330,28 @@ arm_frameless_function_invocation (struct frame_info *fi) return frameless; } +/* The address of the arguments in the frame. */ +CORE_ADDR +arm_frame_args_address (struct frame_info *fi) +{ + return fi->frame; +} + +/* The address of the local variables in the frame. */ +CORE_ADDR +arm_frame_locals_address (struct frame_info *fi) +{ + return fi->frame; +} + +/* The number of arguments being passed in the frame. */ +int +arm_frame_num_args (struct frame_info *fi) +{ + /* We have no way of knowing. */ + return -1; +} + /* A typical Thumb prologue looks like this: push {r7, lr} add sp, sp, #-28 |