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-rw-r--r--gdb/arm-xdep.c283
1 files changed, 150 insertions, 133 deletions
diff --git a/gdb/arm-xdep.c b/gdb/arm-xdep.c
index 19781c2..48c416d 100644
--- a/gdb/arm-xdep.c
+++ b/gdb/arm-xdep.c
@@ -1,21 +1,22 @@
/* Acorn Risc Machine host machine support.
Copyright (C) 1988, 1989, 1991 Free Software Foundation, Inc.
-This file is part of GDB.
+ This file is part of GDB.
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
#include "defs.h"
#include "frame.h"
@@ -42,7 +43,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
void
fetch_inferior_registers (regno)
- int regno; /* Original value discarded */
+ int regno; /* Original value discarded */
{
register unsigned int regaddr;
char buf[MAX_REGISTER_RAW_SIZE];
@@ -51,34 +52,35 @@ fetch_inferior_registers (regno)
struct user u;
unsigned int offset = (char *) &u.u_ar0 - (char *) &u;
offset = ptrace (PT_READ_U, inferior_pid, (PTRACE_ARG3_TYPE) offset, 0)
- - KERNEL_U_ADDR;
+ - KERNEL_U_ADDR;
registers_fetched ();
-
+
for (regno = 0; regno < 16; regno++)
{
regaddr = offset + regno * 4;
- *(int *)&buf[0] = ptrace (PT_READ_U, inferior_pid,
- (PTRACE_ARG3_TYPE) regaddr, 0);
+ *(int *) &buf[0] = ptrace (PT_READ_U, inferior_pid,
+ (PTRACE_ARG3_TYPE) regaddr, 0);
if (regno == PC_REGNUM)
- *(int *)&buf[0] = GET_PC_PART(*(int *)&buf[0]);
+ *(int *) &buf[0] = GET_PC_PART (*(int *) &buf[0]);
supply_register (regno, buf);
}
- *(int *)&buf[0] = ptrace (PT_READ_U, inferior_pid,
- (PTRACE_ARG3_TYPE) (offset + PC*4), 0);
- supply_register (PS_REGNUM, buf); /* set virtual register ps same as pc */
+ *(int *) &buf[0] = ptrace (PT_READ_U, inferior_pid,
+ (PTRACE_ARG3_TYPE) (offset + PC * 4), 0);
+ supply_register (PS_REGNUM, buf); /* set virtual register ps same as pc */
/* read the floating point registers */
- offset = (char *) &u.u_fp_regs - (char *)&u;
- *(int *)buf = ptrace (PT_READ_U, inferior_pid, (PTRACE_ARG3_TYPE) offset, 0);
+ offset = (char *) &u.u_fp_regs - (char *) &u;
+ *(int *) buf = ptrace (PT_READ_U, inferior_pid, (PTRACE_ARG3_TYPE) offset, 0);
supply_register (FPS_REGNUM, buf);
- for (regno = 16; regno < 24; regno++) {
+ for (regno = 16; regno < 24; regno++)
+ {
regaddr = offset + 4 + 12 * (regno - 16);
- for (i = 0; i < 12; i += sizeof(int))
- *(int *) &buf[i] = ptrace (PT_READ_U, inferior_pid,
- (PTRACE_ARG3_TYPE) (regaddr + i), 0);
+ for (i = 0; i < 12; i += sizeof (int))
+ *(int *) &buf[i] = ptrace (PT_READ_U, inferior_pid,
+ (PTRACE_ARG3_TYPE) (regaddr + i), 0);
supply_register (regno, buf);
- }
+ }
}
/* Store our register values back into the inferior.
@@ -96,15 +98,17 @@ store_inferior_registers (regno)
unsigned long value;
unsigned int offset = (char *) &u.u_ar0 - (char *) &u;
offset = ptrace (PT_READ_U, inferior_pid, (PTRACE_ARG3_TYPE) offset, 0)
- - KERNEL_U_ADDR;
+ - KERNEL_U_ADDR;
- if (regno >= 0) {
- if (regno >= 16) return;
+ if (regno >= 0)
+ {
+ if (regno >= 16)
+ return;
regaddr = offset + 4 * regno;
errno = 0;
- value = read_register(regno);
+ value = read_register (regno);
if (regno == PC_REGNUM)
- value = SET_PC_PART(read_register (PS_REGNUM), value);
+ value = SET_PC_PART (read_register (PS_REGNUM), value);
ptrace (PT_WRITE_U, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, value);
if (errno != 0)
{
@@ -112,20 +116,21 @@ store_inferior_registers (regno)
perror_with_name (buf);
}
}
- else for (regno = 0; regno < 15; regno++)
- {
- regaddr = offset + regno * 4;
- errno = 0;
- value = read_register(regno);
- if (regno == PC_REGNUM)
- value = SET_PC_PART(read_register (PS_REGNUM), value);
- ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, value);
- if (errno != 0)
- {
- sprintf (buf, "writing all regs, number %d", regno);
- perror_with_name (buf);
- }
- }
+ else
+ for (regno = 0; regno < 15; regno++)
+ {
+ regaddr = offset + regno * 4;
+ errno = 0;
+ value = read_register (regno);
+ if (regno == PC_REGNUM)
+ value = SET_PC_PART (read_register (PS_REGNUM), value);
+ ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, value);
+ if (errno != 0)
+ {
+ sprintf (buf, "writing all regs, number %d", regno);
+ perror_with_name (buf);
+ }
+ }
}
/* Work with core dump and executable files, for GDB.
@@ -135,20 +140,21 @@ store_inferior_registers (regno)
by the execfile.
e.g. prog shares Xt which shares X11 which shares c. */
-struct shared_library {
- struct exec_header header;
- char name[SHLIBLEN];
- CORE_ADDR text_start; /* CORE_ADDR of 1st byte of text, this file */
- long data_offset; /* offset of data section in file */
- int chan; /* file descriptor for the file */
- struct shared_library *shares; /* library this one shares */
+struct shared_library
+{
+ struct exec_header header;
+ char name[SHLIBLEN];
+ CORE_ADDR text_start; /* CORE_ADDR of 1st byte of text, this file */
+ long data_offset; /* offset of data section in file */
+ int chan; /* file descriptor for the file */
+ struct shared_library *shares; /* library this one shares */
};
static struct shared_library *shlib = 0;
/* Hook for `exec_file_command' command to call. */
extern void (*exec_file_display_hook) ();
-
+
static CORE_ADDR unshared_text_start;
/* extended header from exec file (for shared library info) */
@@ -184,7 +190,7 @@ core_file_command (filename, from_tty)
{
filename = tilde_expand (filename);
make_cleanup (free, filename);
-
+
if (have_inferior_p ())
error ("To look at a core file, you must kill the program with \"kill\".");
corechan = open (filename, O_RDONLY, 0);
@@ -218,7 +224,7 @@ core_file_command (filename, from_tty)
reg_offset = (int) u.u_ar0;
if (reg_offset > NBPG * UPAGES)
reg_offset -= KERNEL_U_ADDR;
- fp_reg_offset = (char *) &u.u_fp_regs - (char *)&u;
+ fp_reg_offset = (char *) &u.u_fp_regs - (char *) &u;
/* I don't know where to find this info.
So, for now, mark it as not available. */
@@ -235,26 +241,26 @@ core_file_command (filename, from_tty)
char buf[MAX_REGISTER_RAW_SIZE];
if (regno < 16)
- val = lseek (corechan, reg_offset + 4 * regno, 0);
+ val = lseek (corechan, reg_offset + 4 * regno, 0);
else if (regno < 24)
- val = lseek (corechan, fp_reg_offset + 4 + 12*(regno - 24), 0);
+ val = lseek (corechan, fp_reg_offset + 4 + 12 * (regno - 24), 0);
else if (regno == 24)
- val = lseek (corechan, fp_reg_offset, 0);
+ val = lseek (corechan, fp_reg_offset, 0);
else if (regno == 25)
- val = lseek (corechan, reg_offset + 4 * PC, 0);
+ val = lseek (corechan, reg_offset + 4 * PC, 0);
if (val < 0
|| (val = myread (corechan, buf, sizeof buf)) < 0)
{
- char * buffer = (char *) alloca (strlen (REGISTER_NAME (regno))
- + 30);
+ char *buffer = (char *) alloca (strlen (REGISTER_NAME (regno))
+ + 30);
strcpy (buffer, "Reading register ");
strcat (buffer, REGISTER_NAME (regno));
-
+
perror_with_name (buffer);
}
if (regno == PC_REGNUM)
- *(int *)buf = GET_PC_PART(*(int *)buf);
+ *(int *) buf = GET_PC_PART (*(int *) buf);
supply_register (regno, buf);
}
}
@@ -282,20 +288,21 @@ core_file_command (filename, from_tty)
by the execfile.
e.g. prog shares Xt which shares X11 which shares c. */
-struct shared_library {
- struct exec_header header;
- char name[SHLIBLEN];
- CORE_ADDR text_start; /* CORE_ADDR of 1st byte of text, this file */
- long data_offset; /* offset of data section in file */
- int chan; /* file descriptor for the file */
- struct shared_library *shares; /* library this one shares */
+struct shared_library
+{
+ struct exec_header header;
+ char name[SHLIBLEN];
+ CORE_ADDR text_start; /* CORE_ADDR of 1st byte of text, this file */
+ long data_offset; /* offset of data section in file */
+ int chan; /* file descriptor for the file */
+ struct shared_library *shares; /* library this one shares */
};
static struct shared_library *shlib = 0;
/* Hook for `exec_file_command' command to call. */
extern void (*exec_file_display_hook) ();
-
+
static CORE_ADDR unshared_text_start;
/* extended header from exec file (for shared library info) */
@@ -325,10 +332,11 @@ exec_file_command (filename, from_tty)
if (execchan >= 0)
close (execchan);
execchan = -1;
- if (shlib) {
- close_shared_library(shlib);
+ if (shlib)
+ {
+ close_shared_library (shlib);
shlib = 0;
- }
+ }
/* Now open and digest the file the user requested, if any. */
@@ -348,7 +356,7 @@ exec_file_command (filename, from_tty)
#ifdef HEADER_SEEK_FD
HEADER_SEEK_FD (execchan);
#endif
-
+
val = myread (execchan, &exec_header, sizeof exec_header);
exec_aouthdr = exec_header.a_exec;
@@ -359,21 +367,23 @@ exec_file_command (filename, from_tty)
/* Look for shared library if needed */
if (exec_header.a_exec.a_magic & MF_USES_SL)
- shlib = open_shared_library(exec_header.a_shlibname, text_start);
+ shlib = open_shared_library (exec_header.a_shlibname, text_start);
text_offset = N_TXTOFF (exec_aouthdr);
exec_data_offset = N_TXTOFF (exec_aouthdr) + exec_aouthdr.a_text;
- if (shlib) {
- unshared_text_start = shared_text_end(shlib) & ~0x7fff;
+ if (shlib)
+ {
+ unshared_text_start = shared_text_end (shlib) & ~0x7fff;
stack_start = shlib->header.a_exec.a_sldatabase;
stack_end = STACK_END_ADDR;
- } else
- unshared_text_start = 0x8000;
+ }
+ else
+ unshared_text_start = 0x8000;
text_end = unshared_text_start + exec_aouthdr.a_text;
exec_data_start = unshared_text_start + exec_aouthdr.a_text;
- exec_data_end = exec_data_start + exec_aouthdr.a_data;
+ exec_data_end = exec_data_start + exec_aouthdr.a_data;
data_start = exec_data_start;
data_end += exec_data_start;
@@ -421,19 +431,19 @@ xfer_core_file (memaddr, myaddr, len)
xferchan = 0;
/* Determine which file the next bunch of addresses reside in,
- and where in the file. Set the file's read/write pointer
- to point at the proper place for the desired address
- and set xferfile and xferchan for the correct file.
+ and where in the file. Set the file's read/write pointer
+ to point at the proper place for the desired address
+ and set xferfile and xferchan for the correct file.
- If desired address is nonexistent, leave them zero.
+ If desired address is nonexistent, leave them zero.
- i is set to the number of bytes that can be handled
- along with the next address.
+ i is set to the number of bytes that can be handled
+ along with the next address.
- We put the most likely tests first for efficiency. */
+ We put the most likely tests first for efficiency. */
/* Note that if there is no core file
- data_start and data_end are equal. */
+ data_start and data_end are equal. */
if (memaddr >= data_start && memaddr < data_end)
{
i = min (len, data_end - memaddr);
@@ -442,29 +452,33 @@ xfer_core_file (memaddr, myaddr, len)
xferchan = corechan;
}
/* Note that if there is no core file
- stack_start and stack_end define the shared library data. */
+ stack_start and stack_end define the shared library data. */
else if (memaddr >= stack_start && memaddr < stack_end)
{
- if (corechan < 0) {
- struct shared_library *lib;
- for (lib = shlib; lib; lib = lib->shares)
- if (memaddr >= lib->header.a_exec.a_sldatabase &&
- memaddr < lib->header.a_exec.a_sldatabase +
- lib->header.a_exec.a_data)
- break;
- if (lib) {
- i = min (len, lib->header.a_exec.a_sldatabase +
- lib->header.a_exec.a_data - memaddr);
- fileptr = lib->data_offset + memaddr -
- lib->header.a_exec.a_sldatabase;
- xferfile = execfile;
- xferchan = lib->chan;
+ if (corechan < 0)
+ {
+ struct shared_library *lib;
+ for (lib = shlib; lib; lib = lib->shares)
+ if (memaddr >= lib->header.a_exec.a_sldatabase &&
+ memaddr < lib->header.a_exec.a_sldatabase +
+ lib->header.a_exec.a_data)
+ break;
+ if (lib)
+ {
+ i = min (len, lib->header.a_exec.a_sldatabase +
+ lib->header.a_exec.a_data - memaddr);
+ fileptr = lib->data_offset + memaddr -
+ lib->header.a_exec.a_sldatabase;
+ xferfile = execfile;
+ xferchan = lib->chan;
}
- } else {
- i = min (len, stack_end - memaddr);
- fileptr = memaddr - stack_start + stack_offset;
- xferfile = &corefile;
- xferchan = corechan;
+ }
+ else
+ {
+ i = min (len, stack_end - memaddr);
+ fileptr = memaddr - stack_start + stack_offset;
+ xferfile = &corefile;
+ xferchan = corechan;
}
}
else if (corechan < 0
@@ -477,22 +491,25 @@ xfer_core_file (memaddr, myaddr, len)
}
else if (memaddr >= text_start && memaddr < text_end)
{
- struct shared_library *lib;
- for (lib = shlib; lib; lib = lib->shares)
- if (memaddr >= lib->text_start &&
- memaddr < lib->text_start + lib->header.a_exec.a_text)
- break;
- if (lib) {
- i = min (len, lib->header.a_exec.a_text +
- lib->text_start - memaddr);
- fileptr = memaddr - lib->text_start + text_offset;
- xferfile = &execfile;
- xferchan = lib->chan;
- } else {
- i = min (len, text_end - memaddr);
- fileptr = memaddr - unshared_text_start + text_offset;
- xferfile = &execfile;
- xferchan = execchan;
+ struct shared_library *lib;
+ for (lib = shlib; lib; lib = lib->shares)
+ if (memaddr >= lib->text_start &&
+ memaddr < lib->text_start + lib->header.a_exec.a_text)
+ break;
+ if (lib)
+ {
+ i = min (len, lib->header.a_exec.a_text +
+ lib->text_start - memaddr);
+ fileptr = memaddr - lib->text_start + text_offset;
+ xferfile = &execfile;
+ xferchan = lib->chan;
+ }
+ else
+ {
+ i = min (len, text_end - memaddr);
+ fileptr = memaddr - unshared_text_start + text_offset;
+ xferfile = &execfile;
+ xferchan = execchan;
}
}
else if (memaddr < text_start)
@@ -500,7 +517,7 @@ xfer_core_file (memaddr, myaddr, len)
i = min (len, text_start - memaddr);
}
else if (memaddr >= text_end
- && memaddr < (corechan >= 0? data_start : exec_data_start))
+ && memaddr < (corechan >= 0 ? data_start : exec_data_start))
{
i = min (len, data_start - memaddr);
}
@@ -511,11 +528,11 @@ xfer_core_file (memaddr, myaddr, len)
}
else if (corechan < 0 && memaddr >= exec_data_end)
{
- i = min (len, - memaddr);
+ i = min (len, -memaddr);
}
else if (memaddr >= stack_end && stack_end != 0)
{
- i = min (len, - memaddr);
+ i = min (len, -memaddr);
}
else
{
@@ -525,7 +542,7 @@ xfer_core_file (memaddr, myaddr, len)
}
/* Now we know which file to use.
- Set up its pointer and transfer the data. */
+ Set up its pointer and transfer the data. */
if (xferfile)
{
if (*xferfile == 0)
@@ -541,8 +558,8 @@ xfer_core_file (memaddr, myaddr, len)
perror_with_name (*xferfile);
}
/* If this address is for nonexistent memory,
- read zeros if reading, or do nothing if writing.
- Actually, we never right. */
+ read zeros if reading, or do nothing if writing.
+ Actually, we never right. */
else
{
memset (myaddr, '\0', i);
generated by cgit v1.1 at 2024-12-13 13:04:35 +0000