aboutsummaryrefslogtreecommitdiff
path: root/gdb/regcache.c
diff options
context:
space:
mode:
authorAndrew Cagney <cagney@redhat.com>2001-02-20 22:39:03 +0000
committerAndrew Cagney <cagney@redhat.com>2001-02-20 22:39:03 +0000
commitd65fe83949b66135b5e25d5b4c84cfe20d87f610 (patch)
treed38c6b928f1776b3eae33ce43358e19e92906d78 /gdb/regcache.c
parent78f85fd7987835445807c27a617989df01341871 (diff)
downloadfsf-binutils-gdb-d65fe83949b66135b5e25d5b4c84cfe20d87f610.zip
fsf-binutils-gdb-d65fe83949b66135b5e25d5b4c84cfe20d87f610.tar.gz
fsf-binutils-gdb-d65fe83949b66135b5e25d5b4c84cfe20d87f610.tar.bz2
Move frame specific register code to the new file frame.c.
Diffstat (limited to 'gdb/regcache.c')
-rw-r--r--gdb/regcache.c199
1 files changed, 0 insertions, 199 deletions
diff --git a/gdb/regcache.c b/gdb/regcache.c
index de6936b..953892c 100644
--- a/gdb/regcache.c
+++ b/gdb/regcache.c
@@ -137,205 +137,6 @@ store_register (int regnum)
STORE_PSEUDO_REGISTER (regnum);
}
-/* FIND_SAVED_REGISTER ()
-
- Return the address in which frame FRAME's value of register REGNUM
- has been saved in memory. Or return zero if it has not been saved.
- If REGNUM specifies the SP, the value we return is actually
- the SP value, not an address where it was saved. */
-
-CORE_ADDR
-find_saved_register (struct frame_info *frame, int regnum)
-{
- register struct frame_info *frame1 = NULL;
- register CORE_ADDR addr = 0;
-
- if (frame == NULL) /* No regs saved if want current frame */
- return 0;
-
-#ifdef HAVE_REGISTER_WINDOWS
- /* We assume that a register in a register window will only be saved
- in one place (since the name changes and/or disappears as you go
- towards inner frames), so we only call get_frame_saved_regs on
- the current frame. This is directly in contradiction to the
- usage below, which assumes that registers used in a frame must be
- saved in a lower (more interior) frame. This change is a result
- of working on a register window machine; get_frame_saved_regs
- always returns the registers saved within a frame, within the
- context (register namespace) of that frame. */
-
- /* However, note that we don't want this to return anything if
- nothing is saved (if there's a frame inside of this one). Also,
- callers to this routine asking for the stack pointer want the
- stack pointer saved for *this* frame; this is returned from the
- next frame. */
-
- if (REGISTER_IN_WINDOW_P (regnum))
- {
- frame1 = get_next_frame (frame);
- if (!frame1)
- return 0; /* Registers of this frame are active. */
-
- /* Get the SP from the next frame in; it will be this
- current frame. */
- if (regnum != SP_REGNUM)
- frame1 = frame;
-
- FRAME_INIT_SAVED_REGS (frame1);
- return frame1->saved_regs[regnum]; /* ... which might be zero */
- }
-#endif /* HAVE_REGISTER_WINDOWS */
-
- /* Note that this next routine assumes that registers used in
- frame x will be saved only in the frame that x calls and
- frames interior to it. This is not true on the sparc, but the
- above macro takes care of it, so we should be all right. */
- while (1)
- {
- QUIT;
- frame1 = get_prev_frame (frame1);
- if (frame1 == 0 || frame1 == frame)
- break;
- FRAME_INIT_SAVED_REGS (frame1);
- if (frame1->saved_regs[regnum])
- addr = frame1->saved_regs[regnum];
- }
-
- return addr;
-}
-
-/* DEFAULT_GET_SAVED_REGISTER ()
-
- Find register number REGNUM relative to FRAME and put its (raw,
- target format) contents in *RAW_BUFFER. Set *OPTIMIZED if the
- variable was optimized out (and thus can't be fetched). Set *LVAL
- to lval_memory, lval_register, or not_lval, depending on whether
- the value was fetched from memory, from a register, or in a strange
- and non-modifiable way (e.g. a frame pointer which was calculated
- rather than fetched). Set *ADDRP to the address, either in memory
- on as a REGISTER_BYTE offset into the registers array.
-
- Note that this implementation never sets *LVAL to not_lval. But
- it can be replaced by defining GET_SAVED_REGISTER and supplying
- your own.
-
- The argument RAW_BUFFER must point to aligned memory. */
-
-static void
-default_get_saved_register (char *raw_buffer,
- int *optimized,
- CORE_ADDR *addrp,
- struct frame_info *frame,
- int regnum,
- enum lval_type *lval)
-{
- CORE_ADDR addr;
-
- if (!target_has_registers)
- error ("No registers.");
-
- /* Normal systems don't optimize out things with register numbers. */
- if (optimized != NULL)
- *optimized = 0;
- addr = find_saved_register (frame, regnum);
- if (addr != 0)
- {
- if (lval != NULL)
- *lval = lval_memory;
- if (regnum == SP_REGNUM)
- {
- if (raw_buffer != NULL)
- {
- /* Put it back in target format. */
- store_address (raw_buffer, REGISTER_RAW_SIZE (regnum),
- (LONGEST) addr);
- }
- if (addrp != NULL)
- *addrp = 0;
- return;
- }
- if (raw_buffer != NULL)
- target_read_memory (addr, raw_buffer, REGISTER_RAW_SIZE (regnum));
- }
- else
- {
- if (lval != NULL)
- *lval = lval_register;
- addr = REGISTER_BYTE (regnum);
- if (raw_buffer != NULL)
- read_register_gen (regnum, raw_buffer);
- }
- if (addrp != NULL)
- *addrp = addr;
-}
-
-#if !defined (GET_SAVED_REGISTER)
-#define GET_SAVED_REGISTER(raw_buffer, optimized, addrp, frame, regnum, lval) \
- default_get_saved_register(raw_buffer, optimized, addrp, frame, regnum, lval)
-#endif
-
-void
-get_saved_register (char *raw_buffer,
- int *optimized,
- CORE_ADDR *addrp,
- struct frame_info *frame,
- int regnum,
- enum lval_type *lval)
-{
- GET_SAVED_REGISTER (raw_buffer, optimized, addrp, frame, regnum, lval);
-}
-
-/* READ_RELATIVE_REGISTER_RAW_BYTES_FOR_FRAME
-
- Copy the bytes of register REGNUM, relative to the input stack frame,
- into our memory at MYADDR, in target byte order.
- The number of bytes copied is REGISTER_RAW_SIZE (REGNUM).
-
- Returns 1 if could not be read, 0 if could. */
-
-/* FIXME: This function increases the confusion between FP_REGNUM
- and the virtual/pseudo-frame pointer. */
-
-static int
-read_relative_register_raw_bytes_for_frame (int regnum,
- char *myaddr,
- struct frame_info *frame)
-{
- int optim;
- if (regnum == FP_REGNUM && frame)
- {
- /* Put it back in target format. */
- store_address (myaddr, REGISTER_RAW_SIZE (FP_REGNUM),
- (LONGEST) FRAME_FP (frame));
-
- return 0;
- }
-
- get_saved_register (myaddr, &optim, (CORE_ADDR *) NULL, frame,
- regnum, (enum lval_type *) NULL);
-
- if (register_cached (regnum) < 0)
- return 1; /* register value not available */
-
- return optim;
-}
-
-/* READ_RELATIVE_REGISTER_RAW_BYTES
-
- Copy the bytes of register REGNUM, relative to the current stack
- frame, into our memory at MYADDR, in target byte order.
- The number of bytes copied is REGISTER_RAW_SIZE (REGNUM).
-
- Returns 1 if could not be read, 0 if could. */
-
-int
-read_relative_register_raw_bytes (int regnum, char *myaddr)
-{
- return read_relative_register_raw_bytes_for_frame (regnum, myaddr,
- selected_frame);
-}
-
-
/* Low level examining and depositing of registers.
The caller is responsible for making sure that the inferior is