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-rw-r--r--gdb/ChangeLog11
-rw-r--r--gdb/m68k-tdep.c59
-rw-r--r--gdb/m68klinux-tdep.c18
3 files changed, 51 insertions, 37 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 9ae7b76..a2e3dcf 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,14 @@
+2002-11-29 Andreas Schwab <schwab@suse.de>
+
+ * m68k-tdep.c (m68k_frame_chain, m68k_frame_saved_pc)
+ (altos_skip_prologue, delta68_frame_saved_pc, isi_frame_num_args)
+ (delta68_frame_num_args, news_frame_num_args, m68k_skip_prologue)
+ (m68k_frame_init_saved_regs, m68k_saved_pc_after_call): Use
+ read_memory_unsigned_integer instead of read_memory_integer when
+ dealing with addresses and instruction opcodes.
+ * m68klinux-tdep.c (m68k_linux_sigtramp_saved_pc)
+ (m68k_linux_frame_saved_pc): Likewise.
+
2002-11-29 Andrew Cagney <ac131313@redhat.com>
* stack.c (selected_frame, select_frame): Move from here ...
diff --git a/gdb/m68k-tdep.c b/gdb/m68k-tdep.c
index 67d1a99..d50cd25 100644
--- a/gdb/m68k-tdep.c
+++ b/gdb/m68k-tdep.c
@@ -259,7 +259,7 @@ m68k_frame_chain (struct frame_info *thisframe)
if (get_frame_type (thisframe) == SIGTRAMP_FRAME)
return thisframe->frame;
else if (!inside_entry_file (thisframe->pc))
- return read_memory_integer (thisframe->frame, 4);
+ return read_memory_unsigned_integer (thisframe->frame, 4);
else
return 0;
}
@@ -283,13 +283,14 @@ m68k_frame_saved_pc (struct frame_info *frame)
if (get_frame_type (frame) == SIGTRAMP_FRAME)
{
if (frame->next)
- return read_memory_integer (frame->next->frame + SIG_PC_FP_OFFSET, 4);
+ return read_memory_unsigned_integer (frame->next->frame
+ + SIG_PC_FP_OFFSET, 4);
else
- return read_memory_integer (read_register (SP_REGNUM)
- + SIG_PC_FP_OFFSET - 8, 4);
+ return read_memory_unsigned_integer (read_register (SP_REGNUM)
+ + SIG_PC_FP_OFFSET - 8, 4);
}
else
- return read_memory_integer (frame->frame + 4, 4);
+ return read_memory_unsigned_integer (frame->frame + 4, 4);
}
@@ -299,7 +300,7 @@ m68k_frame_saved_pc (struct frame_info *frame)
extern CORE_ADDR
altos_skip_prologue (CORE_ADDR pc)
{
- register int op = read_memory_integer (pc, 2);
+ register int op = read_memory_unsigned_integer (pc, 2);
if (op == P_LINKW_FP)
pc += 4; /* Skip link #word */
else if (op == P_LINKL_FP)
@@ -346,7 +347,8 @@ delta68_frame_args_address (struct frame_info *frame_info)
CORE_ADDR
delta68_frame_saved_pc (struct frame_info *frame_info)
{
- return read_memory_integer (delta68_frame_args_address (frame_info) + 4, 4);
+ return read_memory_unsigned_integer (delta68_frame_args_address (frame_info)
+ + 4, 4);
}
/* Return number of args passed to a frame.
@@ -357,7 +359,7 @@ isi_frame_num_args (struct frame_info *fi)
{
int val;
CORE_ADDR pc = FRAME_SAVED_PC (fi);
- int insn = 0177777 & read_memory_integer (pc, 2);
+ int insn = read_memory_unsigned_integer (pc, 2);
val = 0;
if (insn == 0047757 || insn == 0157374) /* lea W(sp),sp or addaw #W,sp */
val = read_memory_integer (pc + 2, 2);
@@ -379,7 +381,7 @@ delta68_frame_num_args (struct frame_info *fi)
{
int val;
CORE_ADDR pc = FRAME_SAVED_PC (fi);
- int insn = 0177777 & read_memory_integer (pc, 2);
+ int insn = read_memory_unsigned_integer (pc, 2);
val = 0;
if (insn == 0047757 || insn == 0157374) /* lea W(sp),sp or addaw #W,sp */
val = read_memory_integer (pc + 2, 2);
@@ -401,7 +403,7 @@ news_frame_num_args (struct frame_info *fi)
{
int val;
CORE_ADDR pc = FRAME_SAVED_PC (fi);
- int insn = 0177777 & read_memory_integer (pc, 2);
+ int insn = read_memory_unsigned_integer (pc, 2);
val = 0;
if (insn == 0047757 || insn == 0157374) /* lea W(sp),sp or addaw #W,sp */
val = read_memory_integer (pc + 2, 2);
@@ -550,8 +552,7 @@ m68k_skip_prologue (CORE_ADDR ip)
while (ip < limit)
{
- op = read_memory_integer (ip, 2);
- op &= 0xFFFF;
+ op = read_memory_unsigned_integer (ip, 2);
if (op == P_LINKW_FP)
ip += 4; /* Skip link.w */
@@ -587,7 +588,7 @@ m68k_frame_init_saved_regs (struct frame_info *frame_info)
/* First possible address for a pc in a call dummy for this frame. */
CORE_ADDR possible_call_dummy_start =
- (frame_info)->frame - 28 - FP_REGNUM * 4 - 4 - 8 * 12;
+ frame_info->frame - 28 - FP_REGNUM * 4 - 4 - 8 * 12;
int nextinsn;
@@ -598,8 +599,8 @@ m68k_frame_init_saved_regs (struct frame_info *frame_info)
memset (frame_info->saved_regs, 0, SIZEOF_FRAME_SAVED_REGS);
- if ((frame_info)->pc >= possible_call_dummy_start
- && (frame_info)->pc <= (frame_info)->frame)
+ if (frame_info->pc >= possible_call_dummy_start
+ && frame_info->pc <= frame_info->frame)
{
/* It is a call dummy. We could just stop now, since we know
@@ -607,16 +608,16 @@ m68k_frame_init_saved_regs (struct frame_info *frame_info)
to parse the "prologue" which is part of the call dummy.
This is needlessly complex and confusing. FIXME. */
- next_addr = (frame_info)->frame;
+ next_addr = frame_info->frame;
pc = possible_call_dummy_start;
}
else
{
- pc = get_pc_function_start ((frame_info)->pc);
+ pc = get_pc_function_start (frame_info->pc);
- nextinsn = read_memory_integer (pc, 2);
+ nextinsn = read_memory_unsigned_integer (pc, 2);
if (P_PEA_FP == nextinsn
- && P_MOVL_SP_FP == read_memory_integer (pc + 2, 2))
+ && P_MOVL_SP_FP == read_memory_unsigned_integer (pc + 2, 2))
{
/* pea %fp
move.l %sp, %fp */
@@ -628,7 +629,7 @@ m68k_frame_init_saved_regs (struct frame_info *frame_info)
/* Find the address above the saved
regs using the amount of storage from the link instruction. */
{
- next_addr = (frame_info)->frame + read_memory_integer (pc + 2, 4);
+ next_addr = frame_info->frame + read_memory_integer (pc + 2, 4);
pc += 6;
}
else if (P_LINKW_FP == nextinsn)
@@ -636,21 +637,21 @@ m68k_frame_init_saved_regs (struct frame_info *frame_info)
/* Find the address above the saved
regs using the amount of storage from the link instruction. */
{
- next_addr = (frame_info)->frame + read_memory_integer (pc + 2, 2);
+ next_addr = frame_info->frame + read_memory_integer (pc + 2, 2);
pc += 4;
}
else
goto lose;
/* If have an addal #-n, sp next, adjust next_addr. */
- if ((0177777 & read_memory_integer (pc, 2)) == 0157774)
+ if (read_memory_unsigned_integer (pc, 2) == 0157774)
next_addr += read_memory_integer (pc += 2, 4), pc += 4;
}
for (;;)
{
- nextinsn = 0xffff & read_memory_integer (pc, 2);
- regmask = read_memory_integer (pc + 2, 2);
+ nextinsn = read_memory_unsigned_integer (pc, 2);
+ regmask = read_memory_unsigned_integer (pc + 2, 2);
/* fmovemx to -(sp) */
if (0xf227 == nextinsn && (regmask & 0xff00) == 0xe000)
{
@@ -665,7 +666,7 @@ m68k_frame_init_saved_regs (struct frame_info *frame_info)
{
register CORE_ADDR addr;
- addr = (frame_info)->frame + read_memory_integer (pc + 4, 2);
+ addr = frame_info->frame + read_memory_integer (pc + 4, 2);
/* Regmask's low bit is for register fp7, the first pushed */
for (regnum = FP0_REGNUM + 8; --regnum >= FP0_REGNUM; regmask >>= 1)
if (regmask & 1)
@@ -692,7 +693,7 @@ m68k_frame_init_saved_regs (struct frame_info *frame_info)
{
register CORE_ADDR addr;
- addr = (frame_info)->frame + read_memory_integer (pc + 4, 2);
+ addr = frame_info->frame + read_memory_integer (pc + 4, 2);
/* Regmask's low bit is for register 0, the first written */
for (regnum = 0; regnum < 16; regnum++, regmask >>= 1)
if (regmask & 1)
@@ -948,13 +949,13 @@ m68k_saved_pc_after_call (struct frame_info *frame)
#ifdef SYSCALL_TRAP
int op;
- op = read_memory_integer (frame->pc - SYSCALL_TRAP_OFFSET, 2);
+ op = read_memory_unsigned_integer (frame->pc - SYSCALL_TRAP_OFFSET, 2);
if (op == SYSCALL_TRAP)
- return read_memory_integer (read_register (SP_REGNUM) + 4, 4);
+ return read_memory_unsigned_integer (read_register (SP_REGNUM) + 4, 4);
else
#endif /* SYSCALL_TRAP */
- return read_memory_integer (read_register (SP_REGNUM), 4);
+ return read_memory_unsigned_integer (read_register (SP_REGNUM), 4);
}
/* Function: m68k_gdbarch_init
diff --git a/gdb/m68klinux-tdep.c b/gdb/m68klinux-tdep.c
index c4ae867..afd2d2d 100644
--- a/gdb/m68klinux-tdep.c
+++ b/gdb/m68klinux-tdep.c
@@ -94,14 +94,16 @@ m68k_linux_sigtramp_saved_pc (struct frame_info *frame)
/* Get sigcontext address, it is the third parameter on the stack. */
if (frame->next)
- sigcontext_addr = read_memory_integer (FRAME_ARGS_ADDRESS (frame->next)
- + FRAME_ARGS_SKIP
- + sigcontext_offs,
- ptrbytes);
+ sigcontext_addr
+ = read_memory_unsigned_integer (FRAME_ARGS_ADDRESS (frame->next)
+ + FRAME_ARGS_SKIP
+ + sigcontext_offs,
+ ptrbytes);
else
- sigcontext_addr = read_memory_integer (read_register (SP_REGNUM)
- + sigcontext_offs,
- ptrbytes);
+ sigcontext_addr
+ = read_memory_unsigned_integer (read_register (SP_REGNUM)
+ + sigcontext_offs,
+ ptrbytes);
/* Don't cause a memory_error when accessing sigcontext in case the
stack layout has changed or the stack is corrupt. */
@@ -120,5 +122,5 @@ m68k_linux_frame_saved_pc (struct frame_info *frame)
if (get_frame_type (frame) == SIGTRAMP_FRAME)
return m68k_linux_sigtramp_saved_pc (frame);
- return read_memory_integer (frame->frame + 4, 4);
+ return read_memory_unsigned_integer (frame->frame + 4, 4);
}
generated by cgit v1.1 at 2024-12-27 00:42:09 +0000