/* Native debugging support for Intel x86 running DJGPP.
- Copyright (C) 1997-2018 Free Software Foundation, Inc.
+ Copyright (C) 1997-2021 Free Software Foundation, Inc.
Written by Robert Hoehne.
This file is part of GDB.
#include "inferior.h"
#include "infrun.h"
#include "gdbthread.h"
-#include "gdb_wait.h"
+#include "gdbsupport/gdb_wait.h"
#include "gdbcore.h"
#include "command.h"
#include "gdbcmd.h"
void resume (ptid_t, int, enum gdb_signal) override;
- ptid_t wait (ptid_t, struct target_waitstatus *, int) override;
+ ptid_t wait (ptid_t, struct target_waitstatus *, target_wait_flags) override;
void fetch_registers (struct regcache *, int) override;
void store_registers (struct regcache *, int) override;
bool thread_alive (ptid_t ptid) override;
- const char *pid_to_str (ptid_t) override;
+ std::string pid_to_str (ptid_t) override;
};
static go32_nat_target the_go32_nat_target;
resume_is_step = step;
if (siggnal != GDB_SIGNAL_0 && siggnal != GDB_SIGNAL_TRAP)
- {
- for (i = 0, resume_signal = -1;
- excepn_map[i].gdb_sig != GDB_SIGNAL_LAST; i++)
- if (excepn_map[i].gdb_sig == siggnal)
- {
- resume_signal = excepn_map[i].djgpp_excepno;
- break;
- }
- if (resume_signal == -1)
- printf_unfiltered ("Cannot deliver signal %s on this platform.\n",
- gdb_signal_to_name (siggnal));
- }
+ {
+ for (i = 0, resume_signal = -1;
+ excepn_map[i].gdb_sig != GDB_SIGNAL_LAST; i++)
+ if (excepn_map[i].gdb_sig == siggnal)
+ {
+ resume_signal = excepn_map[i].djgpp_excepno;
+ break;
+ }
+ if (resume_signal == -1)
+ printf_unfiltered ("Cannot deliver signal %s on this platform.\n",
+ gdb_signal_to_name (siggnal));
+ }
}
static char child_cwd[FILENAME_MAX];
ptid_t
go32_nat_target::wait (ptid_t ptid, struct target_waitstatus *status,
- int options)
+ target_wait_flags options)
{
int i;
unsigned char saved_opcode;
}
getcwd (child_cwd, sizeof (child_cwd)); /* in case it has changed */
- chdir (current_directory);
+ if (current_directory != NULL)
+ chdir (current_directory);
if (a_tss.tss_irqn == 0x21)
{
save_npx ();
#endif
- inferior_ptid = ptid_t (SOME_PID);
inf = current_inferior ();
inferior_appeared (inf, SOME_PID);
- if (!target_is_pushed (this))
- push_target (this);
+ if (!inf->target_is_pushed (this))
+ inf->push_target (this);
- add_thread_silent (inferior_ptid);
+ thread_info *thr = add_thread_silent (ptid_t (SOME_PID));
+ switch_to_thread (thr);
clear_proceed_status (0);
insert_breakpoints ();
void
go32_nat_target::mourn_inferior ()
{
- ptid_t ptid;
-
redir_cmdline_delete (&child_cmd);
resume_signal = -1;
resume_is_step = 0;
the OS cleans up when the debuggee exits. */
x86_cleanup_dregs ();
- ptid = inferior_ptid;
- inferior_ptid = null_ptid;
prog_has_started = 0;
generic_mourn_inferior ();
newmode &= ~0x20;
if (oldmode & 0x80) /* Only for character dev. */
- {
- regs.x.ax = 0x4401;
- regs.x.bx = fd;
- regs.x.dx = newmode & 0xff; /* Force upper byte zero, else it fails. */
- __dpmi_int (0x21, ®s);
- if (regs.x.flags & 1)
- return -1;
- }
+ {
+ regs.x.ax = 0x4401;
+ regs.x.bx = fd;
+ regs.x.dx = newmode & 0xff; /* Force upper byte zero, else it fails. */
+ __dpmi_int (0x21, ®s);
+ if (regs.x.flags & 1)
+ return -1;
+ }
return (oldmode & 0x20) == 0x20;
}
#if __DJGPP_MINOR__ > 2
if (child_cmd.redirection)
- {
- int i;
-
- for (i = 0; i < DBG_HANDLES; i++)
{
- if (child_cmd.redirection[i]->file_name)
- printf_unfiltered ("\tFile handle %d is redirected to `%s'.\n",
- i, child_cmd.redirection[i]->file_name);
- else if (_get_dev_info (child_cmd.redirection[i]->inf_handle) == -1)
- printf_unfiltered
- ("\tFile handle %d appears to be closed by inferior.\n", i);
- /* Mask off the raw/cooked bit when comparing device info words. */
- else if ((_get_dev_info (child_cmd.redirection[i]->inf_handle) & 0xdf)
- != (_get_dev_info (i) & 0xdf))
- printf_unfiltered
- ("\tFile handle %d appears to be redirected by inferior.\n", i);
+ int i;
+
+ for (i = 0; i < DBG_HANDLES; i++)
+ {
+ if (child_cmd.redirection[i]->file_name)
+ printf_unfiltered ("\tFile handle %d is redirected to `%s'.\n",
+ i, child_cmd.redirection[i]->file_name);
+ else if (_get_dev_info (child_cmd.redirection[i]->inf_handle) == -1)
+ printf_unfiltered
+ ("\tFile handle %d appears to be closed by inferior.\n", i);
+ /* Mask off the raw/cooked bit when comparing device info words. */
+ else if ((_get_dev_info (child_cmd.redirection[i]->inf_handle) & 0xdf)
+ != (_get_dev_info (i) & 0xdf))
+ printf_unfiltered
+ ("\tFile handle %d appears to be redirected by inferior.\n", i);
+ }
}
- }
#endif
}
/* Redirect standard handles as child wants them. */
errno = 0;
if (redir_to_child (&child_cmd) == -1)
- {
- redir_to_debugger (&child_cmd);
- error (_("Cannot redirect standard handles for program: %s."),
- safe_strerror (errno));
- }
+ {
+ redir_to_debugger (&child_cmd);
+ error (_("Cannot redirect standard handles for program: %s."),
+ safe_strerror (errno));
+ }
/* Set the console device of the inferior to whatever mode
(raw or cooked) we found it last time. */
if (terminal_is_ours)
- {
- if (inf_mode_valid)
- device_mode (0, inf_terminal_mode);
- terminal_is_ours = 0;
- }
+ {
+ if (inf_mode_valid)
+ device_mode (0, inf_terminal_mode);
+ terminal_is_ours = 0;
+ }
}
void
/* Switch to cooked mode on the gdb terminal and save the inferior
terminal mode to be restored when it is resumed. */
if (!terminal_is_ours)
- {
- inf_terminal_mode = device_mode (0, 0);
- if (inf_terminal_mode != -1)
- inf_mode_valid = 1;
- else
- /* If device_mode returned -1, we don't know what happens with
- handle 0 anymore, so make the info invalid. */
- inf_mode_valid = 0;
- terminal_is_ours = 1;
-
- /* Restore debugger's standard handles. */
- errno = 0;
- if (redir_to_debugger (&child_cmd) == -1)
{
- redir_to_child (&child_cmd);
- error (_("Cannot redirect standard handles for debugger: %s."),
- safe_strerror (errno));
+ inf_terminal_mode = device_mode (0, 0);
+ if (inf_terminal_mode != -1)
+ inf_mode_valid = 1;
+ else
+ /* If device_mode returned -1, we don't know what happens with
+ handle 0 anymore, so make the info invalid. */
+ inf_mode_valid = 0;
+ terminal_is_ours = 1;
+
+ /* Restore debugger's standard handles. */
+ errno = 0;
+ if (redir_to_debugger (&child_cmd) == -1)
+ {
+ redir_to_child (&child_cmd);
+ error (_("Cannot redirect standard handles for debugger: %s."),
+ safe_strerror (errno));
+ }
}
- }
}
void
return ptid != null_ptid;
}
-const char *
+std::string
go32_nat_target::pid_to_str (ptid_t ptid)
{
return normal_pid_to_str (ptid);
/* CPUID with EAX = 0 returns the Vendor ID. */
#if 0
/* Ideally we would use x86_cpuid(), but it needs someone to run
- native tests first to make sure things actually work. They should.
- http://sourceware.org/ml/gdb-patches/2013-05/msg00164.html */
+ native tests first to make sure things actually work. They should.
+ http://sourceware.org/ml/gdb-patches/2013-05/msg00164.html */
unsigned int eax, ebx, ecx, edx;
if (x86_cpuid (0, &eax, &ebx, &ecx, &edx))
unsigned brand_idx;
int intel_p = strcmp (cpuid_vendor, "GenuineIntel") == 0;
int amd_p = strcmp (cpuid_vendor, "AuthenticAMD") == 0;
+ int hygon_p = strcmp (cpuid_vendor, "HygonGenuine") == 0;
unsigned cpu_family, cpu_model;
#if 0
}
}
xsnprintf (cpu_string, sizeof (cpu_string), "%s%s Model %d Stepping %d",
- intel_p ? "Pentium" : (amd_p ? "AMD" : "ix86"),
- cpu_brand, cpu_model, cpuid_eax & 0xf);
- printfi_filtered (31, "%s\n", cpu_string);
+ intel_p ? "Pentium" : (amd_p ? "AMD" : (hygon_p ? "Hygon" : "ix86")),
+ cpu_brand, cpu_model, cpuid_eax & 0xf);
+ printf_filtered ("%*s%s\n", 31, "", cpu_string);
if (((cpuid_edx & (6 | (0x0d << 23))) != 0)
|| ((cpuid_edx & 1) == 0)
- || (amd_p && (cpuid_edx & (3 << 30)) != 0))
+ || ((amd_p || hygon_p) && (cpuid_edx & (3 << 30)) != 0))
{
puts_filtered ("CPU Features...................");
/* We only list features which might be useful in the DPMI
puts_filtered ("SSE ");
if ((cpuid_edx & (1 << 26)) != 0)
puts_filtered ("SSE2 ");
- if (amd_p)
+ if (amd_p || hygon_p)
{
if ((cpuid_edx & (1 << 31)) != 0)
puts_filtered ("3DNow! ");
"%s-bit DPMI, with%s Virtual Memory support\n",
(dpmi_version_data.flags & 1) ? "32" : "16",
(dpmi_version_data.flags & 4) ? "" : "out");
- printfi_filtered (31, "Interrupts reflected to %s mode\n",
+ printf_filtered ("%*sInterrupts reflected to %s mode\n", 31, "",
(dpmi_version_data.flags & 2) ? "V86" : "Real");
- printfi_filtered (31, "Processor type: i%d86\n",
+ printf_filtered ("%*sProcessor type: i%d86\n", 31, "",
dpmi_version_data.cpu);
- printfi_filtered (31, "PIC base interrupt: Master: %#x Slave: %#x\n",
+ printf_filtered ("%*sPIC base interrupt: Master: %#x Slave: %#x\n", 31, "",
dpmi_version_data.master_pic, dpmi_version_data.slave_pic);
/* a_tss is only initialized when the debuggee is first run. */
__dpmi_int (0x21, ®s);
if ((regs.x.flags & 1) != 0)
regs.h.al = 0;
- printfi_filtered (31, "UMBs %sin DOS memory chain\n",
- regs.h.al == 0 ? "not " : "");
+ printf_filtered ("%*sUMBs %sin DOS memory chain\n", 31, "",
+ regs.h.al == 0 ? "not " : "");
}
}
break;
case 5:
printf_filtered ("TSS selector=0x%04x", descr.base0);
- printfi_filtered (16, "Task Gate");
+ printf_filtered ("%*sTask Gate", 16, "");
break;
case 6:
case 7:
cr3 = _farnspeekl (taskbase + 0x1c) & ~0xfff;
if (cr3 > 0xfffff)
{
-#if 0 /* Not fullly supported yet. */
+#if 0 /* Not fully supported yet. */
/* The Page Directory is in UMBs. In that case, CWSDPMI puts
the first Page Table right below the Page Directory. Thus,
the first Page Table's entry for its own address and the Page
Directory entry for that Page Table will hold the same
physical address. The loop below searches the entire UMB
- range of addresses for such an occurence. */
+ range of addresses for such an occurrence. */
unsigned long addr, pte_idx;
for (addr = 0xb0000, pte_idx = 0xb0;
static struct cmd_list_element *info_dos_cmdlist = NULL;
-static void
-go32_info_dos_command (const char *args, int from_tty)
-{
- help_list (info_dos_cmdlist, "info dos ", class_info, gdb_stdout);
-}
-
+void _initialize_go32_nat ();
void
-_initialize_go32_nat (void)
+_initialize_go32_nat ()
{
x86_dr_low.set_control = go32_set_dr7;
x86_dr_low.set_addr = go32_set_dr;
/* We are always processing GCC-compiled programs. */
processing_gcc_compilation = 2;
- add_prefix_cmd ("dos", class_info, go32_info_dos_command, _("\
+ add_basic_prefix_cmd ("dos", class_info, _("\
Print information specific to DJGPP (aka MS-DOS) debugging."),
- &info_dos_cmdlist, "info dos ", 0, &infolist);
+ &info_dos_cmdlist, 0, &infolist);
add_cmd ("sysinfo", class_info, go32_sysinfo, _("\
Display information about the target system, including CPU, OS, DPMI, etc."),
projects / deliverable / binutils-gdb.git / blobdiff