diff options
Diffstat (limited to 'gdb/config/rs6000/tm-rs6000.h')
| -rw-r--r-- | gdb/config/rs6000/tm-rs6000.h | 91 |
1 files changed, 6 insertions, 85 deletions
diff --git a/gdb/config/rs6000/tm-rs6000.h b/gdb/config/rs6000/tm-rs6000.h index 0ea9bf6..10562f2 100644 --- a/gdb/config/rs6000/tm-rs6000.h +++ b/gdb/config/rs6000/tm-rs6000.h @@ -388,31 +388,12 @@ CORE_ADDR rs6000_frame_chain PARAMS ((struct frame_info *)); extern int frameless_function_invocation PARAMS((struct frame_info *)); -/* Functions calling alloca() change the value of the stack pointer. We - need to use initial stack pointer (which is saved in r31 by gcc) in - such cases. If a compiler emits traceback table, then we should use the - alloca register specified in traceback table. FIXME. */ -/* Also, it is a good idea to cache information about frame's saved registers - in the frame structure to speed things up. See tm-m88k.h. FIXME. */ - -#define EXTRA_FRAME_INFO \ - CORE_ADDR initial_sp; /* initial stack pointer. */ \ - struct frame_saved_regs *cache_fsr; /* saved registers */ - #define INIT_FRAME_PC_FIRST(fromleaf, prev) \ prev->pc = (fromleaf ? SAVED_PC_AFTER_CALL (prev->next) : \ prev->next ? FRAME_SAVED_PC (prev->next) : read_pc ()); #define INIT_FRAME_PC(fromleaf, prev) /* nothing */ -#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) \ - fi->initial_sp = 0; \ - fi->cache_fsr = 0; \ - if (fi->next != (CORE_ADDR)0 \ - && fi->pc < TEXT_SEGMENT_BASE) \ - /* We're in get_prev_frame_info */ \ - /* and this is a special signal frame. */ \ - /* (fi->pc will be some low address in the kernel, */ \ - /* to which the signal handler returns). */ \ - fi->signal_handler_caller = 1; +extern void rs6000_init_extra_frame_info (int fromleaf, struct frame_info *); +#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) rs6000_init_extra_frame_info (fromleaf, fi) /* If the kernel has to deliver a signal, it pushes a sigcontext structure on the stack and then calls the signal handler, passing @@ -433,11 +414,8 @@ extern int frameless_function_invocation PARAMS((struct frame_info *)); extern unsigned long frame_saved_pc PARAMS ((struct frame_info *)); -#define FRAME_ARGS_ADDRESS(FI) \ - (((struct frame_info*)(FI))->initial_sp ? \ - ((struct frame_info*)(FI))->initial_sp : \ - frame_initial_stack_address (FI)) -extern CORE_ADDR frame_initial_stack_address PARAMS ((struct frame_info *)); +extern CORE_ADDR rs6000_frame_args_address PARAMS ((struct frame_info *)); +#define FRAME_ARGS_ADDRESS(FI) rs6000_frame_args_address (FI) #define FRAME_LOCALS_ADDRESS(FI) FRAME_ARGS_ADDRESS(FI) @@ -463,66 +441,9 @@ extern CORE_ADDR frame_initial_stack_address PARAMS ((struct frame_info *)); not sure if it will be needed. The following macro takes care of gpr's and fpr's only. */ -#define FRAME_FIND_SAVED_REGS(FRAME_INFO, FRAME_SAVED_REGS) \ -{ \ - int ii; \ - CORE_ADDR frame_addr, func_start; \ - struct rs6000_framedata fdata; \ - \ - /* find the start of the function and collect info about its frame. */ \ - \ - func_start = get_pc_function_start ((FRAME_INFO)->pc) + FUNCTION_START_OFFSET; \ - (void) skip_prologue (func_start, &fdata); \ - memset (&(FRAME_SAVED_REGS), '\0', sizeof (FRAME_SAVED_REGS)); \ - \ - /* if there were any saved registers, figure out parent's stack pointer. */ \ - /* the following is true only if the frame doesn't have a call to alloca(), \ - FIXME. */ \ - if (fdata.saved_fpr == 0 && fdata.saved_gpr == 0 && \ - fdata.lr_offset == 0 && fdata.cr_offset == 0) { \ - frame_addr = 0; \ - \ - } else if ((FRAME_INFO)->prev && (FRAME_INFO)->prev->frame) { \ - frame_addr = (FRAME_INFO)->prev->frame; \ - \ - } else { \ - frame_addr = read_memory_integer ((FRAME_INFO)->frame, 4); \ - } \ - \ - /* if != -1, fdata.saved_fpr is the smallest number of saved_fpr. All \ - fpr's from saved_fpr to f31 are saved. */ \ - if (fdata.saved_fpr >= 0) { \ - int fpr_offset = frame_addr + fdata.fpr_offset; \ - for (ii = fdata.saved_fpr; ii < 32; ii++) { \ - (FRAME_SAVED_REGS).regs [FP0_REGNUM + ii] = fpr_offset; \ - fpr_offset += 8; \ - } \ - } \ - \ - /* if != -1, fdata.saved_gpr is the smallest number of saved_gpr. All \ - gpr's from saved_gpr to r31 are saved. */ \ - if (fdata.saved_gpr >= 0) { \ - int gpr_offset = frame_addr + fdata.gpr_offset; \ - for (ii = fdata.saved_gpr; ii < 32; ii++) { \ - (FRAME_SAVED_REGS).regs [ii] = gpr_offset; \ - gpr_offset += 4; \ - } \ - } \ - \ - /* If != 0, fdata.cr_offset is the offset from the frame that holds \ - the CR */ \ - if (fdata.cr_offset != 0) { \ - (FRAME_SAVED_REGS).regs [CR_REGNUM] = frame_addr + fdata.cr_offset; \ - } \ - \ - /* If != 0, fdata.cr_offset is the offset from the frame that holds \ - the LR */ \ - if (fdata.lr_offset != 0) { \ - (FRAME_SAVED_REGS).regs [LR_REGNUM] = frame_addr + fdata.lr_offset; \ - } \ -} +extern void rs6000_frame_init_saved_regs PARAMS ((struct frame_info *)); +#define FRAME_INIT_SAVED_REGS(FI) rs6000_frame_init_saved_regs (FI) - /* Things needed for making the inferior call functions. */ /* Push an empty stack frame, to record the current PC, etc. */ |