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-rw-r--r--src/misc/bochs-2.2.6-big-endian.patch63
-rw-r--r--src/misc/bochs-2.2.6-build.sh40
-rw-r--r--src/misc/bochs-2.2.6-gdbstub-ENN.patch29
-rw-r--r--src/misc/bochs-2.2.6-jitter.patch61
-rw-r--r--src/misc/bochs-2.2.6-ms-extensions.patch14
-rw-r--r--src/misc/bochs-2.2.6-page-fault-segv.patch79
-rw-r--r--src/misc/bochs-2.2.6-paranoia.patch19
-rw-r--r--src/misc/bochs-2.2.6-solaris-link.patch11
-rw-r--r--src/misc/bochs-2.2.6-solaris-tty.patch31
-rw-r--r--src/misc/bochs-2.2.6-triple-fault.patch57
-rw-r--r--src/misc/gcc-3.3.6-cross-howto39
-rw-r--r--src/misc/gdb-macros120
12 files changed, 563 insertions, 0 deletions
diff --git a/src/misc/bochs-2.2.6-big-endian.patch b/src/misc/bochs-2.2.6-big-endian.patch
new file mode 100644
index 0000000..420f69b
--- /dev/null
+++ b/src/misc/bochs-2.2.6-big-endian.patch
@@ -0,0 +1,63 @@
+diff -urp bochs-2.2.6/gdbstub.cc bochs-2.2.6.orig/gdbstub.cc
+--- bochs-2.2.6.orig/gdbstub.cc 2006-01-17 09:15:29.000000000 -0800
++++ bochs-2.2.6/gdbstub.cc 2006-04-03 13:47:39.000000000 -0700
+@@ -672,35 +672,36 @@
+
+ case 'g':
+ #if !BX_SUPPORT_X86_64
+- registers[0] = EAX;
+- registers[1] = ECX;
+- registers[2] = EDX;
+- registers[3] = EBX;
+- registers[4] = ESP;
+- registers[5] = EBP;
+- registers[6] = ESI;
+- registers[7] = EDI;
++ WriteHostDWordToLittleEndian(registers + 0, EAX);
++ WriteHostDWordToLittleEndian(registers + 1, ECX);
++ WriteHostDWordToLittleEndian(registers + 2, EDX);
++ WriteHostDWordToLittleEndian(registers + 3, EBX);
++ WriteHostDWordToLittleEndian(registers + 4, ESP);
++ WriteHostDWordToLittleEndian(registers + 5, EBP);
++ WriteHostDWordToLittleEndian(registers + 6, ESI);
++ WriteHostDWordToLittleEndian(registers + 7, EDI);
+ if (last_stop_reason == GDBSTUB_EXECUTION_BREAKPOINT)
+ {
+- registers[8] = EIP + 1;
++ WriteHostDWordToLittleEndian(registers + 8, EIP + 1);
+ }
+ else
+ {
+- registers[8] = EIP;
++ WriteHostDWordToLittleEndian(registers + 8, EIP);
+ }
+- registers[9] = BX_CPU_THIS_PTR read_eflags();
+- registers[10] =
+- BX_CPU_THIS_PTR sregs[BX_SEG_REG_CS].selector.value;
+- registers[11] =
+- BX_CPU_THIS_PTR sregs[BX_SEG_REG_SS].selector.value;
+- registers[12] =
+- BX_CPU_THIS_PTR sregs[BX_SEG_REG_DS].selector.value;
+- registers[13] =
+- BX_CPU_THIS_PTR sregs[BX_SEG_REG_ES].selector.value;
+- registers[14] =
+- BX_CPU_THIS_PTR sregs[BX_SEG_REG_FS].selector.value;
+- registers[15] =
+- BX_CPU_THIS_PTR sregs[BX_SEG_REG_GS].selector.value;
++ WriteHostDWordToLittleEndian(registers + 9,
++ BX_CPU_THIS_PTR read_eflags());
++ WriteHostDWordToLittleEndian(registers + 10,
++ BX_CPU_THIS_PTR sregs[BX_SEG_REG_CS].selector.value);
++ WriteHostDWordToLittleEndian(registers + 11,
++ BX_CPU_THIS_PTR sregs[BX_SEG_REG_SS].selector.value);
++ WriteHostDWordToLittleEndian(registers + 12,
++ BX_CPU_THIS_PTR sregs[BX_SEG_REG_DS].selector.value);
++ WriteHostDWordToLittleEndian(registers + 13,
++ BX_CPU_THIS_PTR sregs[BX_SEG_REG_ES].selector.value);
++ WriteHostDWordToLittleEndian(registers + 14,
++ BX_CPU_THIS_PTR sregs[BX_SEG_REG_FS].selector.value);
++ WriteHostDWordToLittleEndian(registers + 15,
++ BX_CPU_THIS_PTR sregs[BX_SEG_REG_GS].selector.value);
+ mem2hex((char *)registers, obuf, NUMREGSBYTES);
+ #else
+ #define PUTREG(buf, val, len) do { \
diff --git a/src/misc/bochs-2.2.6-build.sh b/src/misc/bochs-2.2.6-build.sh
new file mode 100644
index 0000000..a8a44e3
--- /dev/null
+++ b/src/misc/bochs-2.2.6-build.sh
@@ -0,0 +1,40 @@
+#! /bin/sh -e
+
+if test -z "$SRCDIR" || test -z "$PINTOSDIR" || test -z "$DSTDIR"; then
+ echo "usage: env SRCDIR=<srcdir> PINTOSDIR=<srcdir> DSTDIR=<dstdir> sh $0"
+ echo " where <srcdir> contains bochs-2.2.6.tar.gz"
+ echo " and <pintosdir> is the root of the pintos source tree"
+ echo " and <dstdir> is the installation prefix (e.g. /usr/local)"
+ exit 1
+fi
+
+cd /tmp
+mkdir $$
+cd $$
+mkdir bochs-2.2.6
+tar xzf $SRCDIR/bochs-2.2.6.tar.gz
+cd bochs-2.2.6
+cat $PINTOSDIR/src/misc/bochs-2.2.6-ms-extensions.patch | patch -p1
+cat $PINTOSDIR/src/misc/bochs-2.2.6-big-endian.patch | patch -p1
+cat $PINTOSDIR/src/misc/bochs-2.2.6-jitter.patch | patch -p1
+cat $PINTOSDIR/src/misc/bochs-2.2.6-triple-fault.patch | patch -p1
+cat $PINTOSDIR/src/misc/bochs-2.2.6-solaris-tty.patch | patch -p1
+cat $PINTOSDIR/src/misc/bochs-2.2.6-page-fault-segv.patch | patch -p1
+cat $PINTOSDIR/src/misc/bochs-2.2.6-paranoia.patch | patch -p1
+cat $PINTOSDIR/src/misc/bochs-2.2.6-gdbstub-ENN.patch | patch -p1
+if test "`uname -s`" = "SunOS"; then
+ cat $PINTOSDIR/src/misc/bochs-2.2.6-solaris-link.patch | patch -p1
+fi
+CFGOPTS="--with-x --with-x11 --with-term --with-nogui --prefix=$DSTDIR"
+mkdir plain &&
+ cd plain &&
+ ../configure $CFGOPTS --enable-gdb-stub &&
+ make &&
+ make install &&
+ cd ..
+mkdir with-dbg &&
+ cd with-dbg &&
+ ../configure --enable-debugger $CFGOPTS &&
+ make &&
+ cp bochs $DSTDIR/bin/bochs-dbg &&
+ cd ..
diff --git a/src/misc/bochs-2.2.6-gdbstub-ENN.patch b/src/misc/bochs-2.2.6-gdbstub-ENN.patch
new file mode 100644
index 0000000..88a8145
--- /dev/null
+++ b/src/misc/bochs-2.2.6-gdbstub-ENN.patch
@@ -0,0 +1,29 @@
+--- bochs-2.2.6/gdbstub.cc 2006-01-17 12:15:29.000000000 -0500
++++ bochs-2.2.6-patched/gdbstub.cc 2007-02-06 23:04:51.095523904 -0500
+@@ -515,7 +515,7 @@
+ }
+ else
+ {
+- put_reply("ENN");
++ put_reply("Eff");
+ }
+ }
+ break;
+@@ -761,7 +761,7 @@
+ }
+ else
+ {
+- put_reply("ENN");
++ put_reply("Eff");
+ }
+ break;
+
+@@ -782,7 +782,7 @@
+ }
+ else
+ {
+- put_reply("ENN");
++ put_reply("Eff");
+ }
+ break;
+
diff --git a/src/misc/bochs-2.2.6-jitter.patch b/src/misc/bochs-2.2.6-jitter.patch
new file mode 100644
index 0000000..48917e0
--- /dev/null
+++ b/src/misc/bochs-2.2.6-jitter.patch
@@ -0,0 +1,61 @@
+diff -urp bochs-2.2.6/iodev/pit82c54.cc bochs-2.2.6.orig/iodev/pit82c54.cc
+--- bochs-2.2.6.orig/iodev/pit82c54.cc 2006-01-08 12:39:08.000000000 -0800
++++ bochs-2.2.6/iodev/pit82c54.cc 2006-04-03 14:00:27.000000000 -0700
+@@ -28,6 +28,7 @@
+
+ #include "iodev.h"
+ #include "pit82c54.h"
++#include <stdlib.h>
+ #define LOG_THIS this->
+
+
+@@ -359,7 +360,13 @@
+ case 2:
+ if(thisctr.count_written) {
+ if(thisctr.triggerGATE || thisctr.first_pass) {
+- set_count(thisctr, thisctr.inlatch);
++ unsigned n = thisctr.inlatch;
++ if (jitter && n > 5) {
++ n *= (double) rand() / RAND_MAX;
++ if (n < 5)
++ n = 5;
++ }
++ set_count(thisctr, n);
+ thisctr.next_change_time=(thisctr.count_binary-1) & 0xFFFF;
+ thisctr.null_count=0;
+ if(thisctr.inlatch==1) {
+diff -urp bochs-2.2.6/main.cc bochs-2.2.6.orig/main.cc
+--- bochs-2.2.6.orig/main.cc 2006-01-22 04:31:15.000000000 -0800
++++ bochs-2.2.6/main.cc 2006-04-03 14:00:54.000000000 -0700
+@@ -105,6 +105,7 @@
+ #endif
+
+ char *bochsrc_filename = NULL;
++int jitter = 0;
+
+ void bx_print_header ()
+ {
+@@ -459,6 +460,13 @@
+ else if (!strcmp ("-q", argv[arg])) {
+ SIM->get_param_enum(BXP_BOCHS_START)->set (BX_QUICK_START);
+ }
++ else if (!strcmp ("-j", argv[arg])) {
++ if (++arg >= argc) BX_PANIC(("-j must be followed by a number"));
++ else {
++ jitter = 1;
++ srand (atoi (argv[arg]));
++ }
++ }
+ else if (!strcmp ("-f", argv[arg])) {
+ if (++arg >= argc) BX_PANIC(("-f must be followed by a filename"));
+ else bochsrc_filename = argv[arg];
+diff -up /home/blp/cs140/bochs-2.2.6/bochs.h\~ /home/blp/cs140/bochs-2.2.6/bochs.h
+--- bochs-2.2.6/bochs.h.orig 2006-01-28 08:16:02.000000000 -0800
++++ bochs-2.2.6/bochs.h 2006-04-03 14:03:54.000000000 -0700
+@@ -698,4 +698,6 @@ int bx_init_hardware ();
+
+ #endif
+
++extern int jitter;
++
+ #endif /* BX_BOCHS_H */
diff --git a/src/misc/bochs-2.2.6-ms-extensions.patch b/src/misc/bochs-2.2.6-ms-extensions.patch
new file mode 100644
index 0000000..a6e50a0
--- /dev/null
+++ b/src/misc/bochs-2.2.6-ms-extensions.patch
@@ -0,0 +1,14 @@
+diff -urp orig/bochs-2.1.1/gui/Makefile.in bochs-2.1.1/gui/Makefile.in
+--- orig/bochs-2.1.1/gui/Makefile.in 2003-11-28 07:07:28.000000000 -0800
++++ bochs-2.1.1/gui/Makefile.in 2004-09-13 15:05:09.402039000 -0700
+@@ -44,7 +44,7 @@ SHELL = /bin/sh
+ @SET_MAKE@
+
+ CXX = @CXX@
+-CXXFLAGS = $(BX_INCDIRS) @CXXFLAGS@ @GUI_CXXFLAGS@
++CXXFLAGS = $(BX_INCDIRS) @CXXFLAGS@ @GUI_CXXFLAGS@ -fms-extensions
+ LOCAL_CXXFLAGS =
+ LDFLAGS = @LDFLAGS@
+ LIBS = @LIBS@
+
+
diff --git a/src/misc/bochs-2.2.6-page-fault-segv.patch b/src/misc/bochs-2.2.6-page-fault-segv.patch
new file mode 100644
index 0000000..7c61a37
--- /dev/null
+++ b/src/misc/bochs-2.2.6-page-fault-segv.patch
@@ -0,0 +1,79 @@
+Index: bochs-2.2.6/cpu/exception.cc
+diff -u bochs-2.2.6/cpu/exception.cc\~ bochs-2.2.6/cpu/exception.cc
+--- bochs-2.2.6/cpu/exception.cc~ 2006-09-28 15:51:39.000000000 -0700
++++ bochs-2.2.6/cpu/exception.cc 2006-12-08 11:14:33.000000000 -0800
+@@ -1033,6 +1033,10 @@ void BX_CPU_C::exception(unsigned vector
+ BX_CPU_THIS_PTR curr_exception[0] = exception_type;
+ }
+
++#if BX_GDBSTUB
++ bx_gdbstub_exception(vector);
++#endif
++
+ #if BX_CPU_LEVEL >= 2
+ if (!real_mode()) {
+ BX_CPU_THIS_PTR interrupt(vector, 0, push_error, error_code);
+Index: bochs-2.2.6/gdbstub.cc
+diff -u bochs-2.2.6/gdbstub.cc\~ bochs-2.2.6/gdbstub.cc
+--- bochs-2.2.6/gdbstub.cc~ 2006-09-28 15:51:39.000000000 -0700
++++ bochs-2.2.6/gdbstub.cc 2006-12-08 11:12:03.000000000 -0800
+@@ -26,6 +26,7 @@ static int last_stop_reason = GDBSTUB_ST
+ #define GDBSTUB_EXECUTION_BREAKPOINT (0xac1)
+ #define GDBSTUB_TRACE (0xac2)
+ #define GDBSTUB_USER_BREAK (0xac3)
++#define GDBSTUB_EXCEPTION_0E (0xac4)
+
+ static int listen_socket_fd;
+ static int socket_fd;
+@@ -271,6 +272,12 @@ int bx_gdbstub_check(unsigned int eip)
+ return(GDBSTUB_STOP_NO_REASON);
+ }
+
++void bx_gdbstub_exception(unsigned int nr)
++{
++ if (nr == 0x0e)
++ last_stop_reason = GDBSTUB_EXCEPTION_0E;
++}
++
+ static int remove_breakpoint(unsigned int addr, int len)
+ {
+ unsigned int i;
+@@ -452,6 +459,10 @@ static void debug_loop(void)
+ {
+ write_signal(&buf[1], SIGTRAP);
+ }
++ else if (last_stop_reason == GDBSTUB_EXCEPTION_0E)
++ {
++ write_signal(&buf[1], SIGSEGV);
++ }
+ else
+ {
+ write_signal(&buf[1], 0);
+@@ -476,10 +487,14 @@ static void debug_loop(void)
+ {
+ write_signal(&buf[1], SIGTRAP);
+ }
+- else
++ else if (last_stop_reason == GDBSTUB_EXCEPTION_0E)
+ {
+ write_signal(&buf[1], SIGSEGV);
+ }
++ else
++ {
++ write_signal(&buf[1], 0);
++ }
+ put_reply(buf);
+ break;
+ }
+Index: bochs-2.2.6/bochs.h
+diff -u bochs-2.2.6/bochs.h\~ bochs-2.2.6/bochs.h
+--- bochs-2.2.6/bochs.h~ 2006-09-28 15:51:39.000000000 -0700
++++ bochs-2.2.6/bochs.h 2006-12-08 11:14:19.000000000 -0800
+@@ -375,6 +375,7 @@ BOCHSAPI extern logfunc_t *genlog;
+ // defines for GDB stub
+ void bx_gdbstub_init(int argc, char* argv[]);
+ int bx_gdbstub_check(unsigned int eip);
++void bx_gdbstub_exception(unsigned int nr);
+ #define GDBSTUB_STOP_NO_REASON (0xac0)
+
+ #if BX_SUPPORT_SMP
diff --git a/src/misc/bochs-2.2.6-paranoia.patch b/src/misc/bochs-2.2.6-paranoia.patch
new file mode 100644
index 0000000..ff8d736
--- /dev/null
+++ b/src/misc/bochs-2.2.6-paranoia.patch
@@ -0,0 +1,19 @@
+Index: bochs-2.2.6/iodev/hdimage.h
+diff -u bochs-2.2.6/iodev/hdimage.h\~ bochs-2.2.6/iodev/hdimage.h
+--- bochs-2.2.6/iodev/hdimage.h~ 2005-11-06 03:07:01.000000000 -0800
++++ bochs-2.2.6/iodev/hdimage.h 2006-09-28 15:55:50.000000000 -0700
+@@ -273,14 +273,8 @@ class sparse_image_t : public device_ima
+
+ void panic(const char * message);
+ off_t
+-#ifndef PARANOID
+- sparse_image_t::
+-#endif
+ get_physical_offset();
+ void
+-#ifndef PARANOID
+- sparse_image_t::
+-#endif
+ set_virtual_page(Bit32u new_virtual_page);
+ void read_header();
+ ssize_t read_page_fragment(Bit32u read_virtual_page, Bit32u read_page_offset, size_t read_size, void * buf);
diff --git a/src/misc/bochs-2.2.6-solaris-link.patch b/src/misc/bochs-2.2.6-solaris-link.patch
new file mode 100644
index 0000000..5afef49
--- /dev/null
+++ b/src/misc/bochs-2.2.6-solaris-link.patch
@@ -0,0 +1,11 @@
+--- bochs-2.2.6.orig/Makefile.in 2006-04-03 16:34:51.170387000 -0700
++++ bochs-2.2.6/Makefile.in 2006-04-03 16:34:57.480303000 -0700
+@@ -93,7 +93,7 @@
+ CFLAGS = @CFLAGS@ @GUI_CFLAGS@ $(MCH_CFLAGS) $(FLA_FLAGS) @DEFINE_PLUGIN_PATH@ -DBX_SHARE_PATH='"$(sharedir)"'
+ CXXFLAGS = @CXXFLAGS@ @GUI_CXXFLAGS@ $(MCH_CFLAGS) $(FLA_FLAGS) @DEFINE_PLUGIN_PATH@ -DBX_SHARE_PATH='"$(sharedir)"'
+
+-LDFLAGS = @LDFLAGS@
++LDFLAGS = @LDFLAGS@ -lsocket
+ LIBS = @LIBS@
+ # To compile with readline:
+ # linux needs just -lreadline
diff --git a/src/misc/bochs-2.2.6-solaris-tty.patch b/src/misc/bochs-2.2.6-solaris-tty.patch
new file mode 100644
index 0000000..a9725dc
--- /dev/null
+++ b/src/misc/bochs-2.2.6-solaris-tty.patch
@@ -0,0 +1,31 @@
+--- bochs-2.2.6/iodev/serial.cc 2005-07-11 09:24:47.000000000 -0700
++++ bochs-2.2.6.patch/iodev/serial.cc 2006-05-28 16:41:33.278938000 -0700
+@@ -245,8 +245,13 @@
+ BX_SER_THIS s[i].io_mode = BX_SER_MODE_TERM;
+ BX_DEBUG(("com%d tty_id: %d", i+1, BX_SER_THIS s[i].tty_id));
+ tcgetattr(BX_SER_THIS s[i].tty_id, &BX_SER_THIS s[i].term_orig);
+- bcopy((caddr_t) &BX_SER_THIS s[i].term_orig, (caddr_t) &BX_SER_THIS s[i].term_new, sizeof(struct termios));
+- cfmakeraw(&BX_SER_THIS s[i].term_new);
++ memcpy((caddr_t) &BX_SER_THIS s[i].term_new, (caddr_t) &BX_SER_THIS s[i].term_orig, sizeof(struct termios));
++ BX_SER_THIS s[i].term_new.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
++ |INLCR|IGNCR|ICRNL|IXON);
++ BX_SER_THIS s[i].term_new.c_oflag &= ~OPOST;
++ BX_SER_THIS s[i].term_new.c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
++ BX_SER_THIS s[i].term_new.c_cflag &= ~(CSIZE|PARENB);
++ BX_SER_THIS s[i].term_new.c_cflag |= CS8;
+ BX_SER_THIS s[i].term_new.c_oflag |= OPOST | ONLCR; // Enable NL to CR-NL translation
+ #ifndef TRUE_CTLC
+ // ctl-C will exit Bochs, or trap to the debugger
+
+
+--- bochs-2.2.6/iodev/serial.h 2005-07-10 09:51:09.000000000 -0700
++++ bochs-2.2.6.patch/iodev/serial.h 2006-05-28 16:39:03.757839000 -0700
+@@ -40,7 +40,7 @@
+ #define SERIAL_ENABLE
+ #endif
+
+-#if defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__linux__) || defined(__GNU__) || defined(__GLIBC__) || defined(__APPLE__)
++#if defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__linux__) || defined(__GNU__) || defined(__GLIBC__) || defined(__APPLE__) || defined(__sun__)
+ #define SERIAL_ENABLE
+ extern "C" {
+ #include <termios.h>
diff --git a/src/misc/bochs-2.2.6-triple-fault.patch b/src/misc/bochs-2.2.6-triple-fault.patch
new file mode 100644
index 0000000..f6d0871
--- /dev/null
+++ b/src/misc/bochs-2.2.6-triple-fault.patch
@@ -0,0 +1,57 @@
+diff -u bochs-2.2.6.orig/cpu/exception.cc bochs-2.2.6/cpu/exception.cc
+--- bochs-2.2.6.orig/cpu/exception.cc
++++ bochs-2.2.6/cpu/exception.cc
+@@ -841,6 +841,13 @@ void BX_CPU_C::exception(unsigned vector
+
+ BX_CPU_THIS_PTR errorno++;
+ if (BX_CPU_THIS_PTR errorno >= 3) {
++#if BX_GDBSTUB
++ if (bx_dbg.gdbstub_enabled) {
++ fprintf(stderr, "Triple fault: stopping for gdb\n");
++ BX_CPU_THIS_PTR ispanic = 1;
++ longjmp(BX_CPU_THIS_PTR jmp_buf_env, 1);
++ }
++#endif
+ #if BX_RESET_ON_TRIPLE_FAULT
+ BX_ERROR(("exception(): 3rd (%d) exception with no resolution, shutdown status is %02xh, resetting", vector, DEV_cmos_get_reg(0x0f)));
+ debug(BX_CPU_THIS_PTR prev_eip);
+@@ -860,6 +867,13 @@ void BX_CPU_C::exception(unsigned vector
+
+ /* if 1st was a double fault (software INT?), then shutdown */
+ if ( (BX_CPU_THIS_PTR errorno==2) && (BX_CPU_THIS_PTR curr_exception[0]==BX_ET_DOUBLE_FAULT) ) {
++#if BX_GDBSTUB
++ if (bx_dbg.gdbstub_enabled) {
++ fprintf(stderr, "Triple fault: stopping for gdb\n");
++ BX_CPU_THIS_PTR ispanic = 1;
++ longjmp(BX_CPU_THIS_PTR jmp_buf_env, 1);
++ }
++#endif
+ #if BX_RESET_ON_TRIPLE_FAULT
+ BX_INFO(("exception(): triple fault encountered, shutdown status is %02xh, resetting", DEV_cmos_get_reg(0x0f)));
+ debug(BX_CPU_THIS_PTR prev_eip);
+diff -u bochs-2.2.6.orig/gdbstub.cc bochs-2.2.6/gdbstub.cc
+--- bochs-2.2.6.orig/gdbstub.cc
++++ bochs-2.2.6/gdbstub.cc
+@@ -466,19 +466,19 @@ static void debug_loop(void)
+
+ BX_INFO (("stepping"));
+ stub_trace_flag = 1;
++ bx_cpu.ispanic = 0;
+ bx_cpu.cpu_loop(-1);
+ DEV_vga_refresh();
+ stub_trace_flag = 0;
+ BX_INFO (("stopped with %x", last_stop_reason));
+ buf[0] = 'S';
+- if (last_stop_reason == GDBSTUB_EXECUTION_BREAKPOINT ||
+- last_stop_reason == GDBSTUB_TRACE)
++ if (last_stop_reason == GDBSTUB_TRACE && !bx_cpu.ispanic)
+ {
+ write_signal(&buf[1], SIGTRAP);
+ }
+ else
+ {
+- write_signal(&buf[1], SIGTRAP);
++ write_signal(&buf[1], SIGSEGV);
+ }
+ put_reply(buf);
+ break;
diff --git a/src/misc/gcc-3.3.6-cross-howto b/src/misc/gcc-3.3.6-cross-howto
new file mode 100644
index 0000000..ad25173
--- /dev/null
+++ b/src/misc/gcc-3.3.6-cross-howto
@@ -0,0 +1,39 @@
+Here are the commands we used to build and install the SPARC
+cross-compiler:
+
+PINTOSROOT=$HOME/private/pintos
+
+PREFIX=/usr/class/cs140/`uname -m`
+PATH=$PATH:$PREFIX/bin
+TMP=`pwd`
+
+wget ftp://ftp.gnu.org/pub/gnu/binutils/binutils-2.15.tar.bz2
+wget ftp://sources.redhat.com/pub/newlib/newlib-1.13.0.tar.gz
+wget ftp://ftp.gnu.org/pub/gnu/gcc/gcc-3.3.6/gcc-core-3.3.6.tar.bz2
+wget ftp://ftp.gnu.org/pub/gnu/gdb/gdb-6.3.tar.bz2
+
+bzcat binutils-2.15.tar.bz2 | tar x
+tar xzf newlib-1.13.0.tar.gz
+bzcat gcc-core-3.3.6.tar.bz2 | tar x
+bzcat gdb-6.3.tar.bz2 | tar x
+
+cd $TMP/binutils-2.15
+mkdir i386
+cd i386
+../configure --target=i386-elf --prefix=$PREFIX
+make LDFLAGS=-lintl
+make install
+
+cd $TMP/gcc-3.3.6
+mkdir i386
+cd i386
+../configure --target=i386-elf --prefix=$PREFIX --with-gnu-as --with-as=$PREFIX/bin/i386-elf-as --with-gnu-ld --with-ld=$PREFIX/bin/i386-elf-ld --with-headers=$TMP/newlib-1.13.0/newlib/libc/include --with-newlib
+make
+make install
+
+cd $TMP/gdb-6.3
+mkdir i386
+cd i386
+../configure --target=i386-elf --prefix=$PREFIX --disable-tui
+make LDFLAGS=-lintl
+make install
diff --git a/src/misc/gdb-macros b/src/misc/gdb-macros
new file mode 100644
index 0000000..a0d0e54
--- /dev/null
+++ b/src/misc/gdb-macros
@@ -0,0 +1,120 @@
+#
+# A set of useful macros that can help debug Pintos.
+#
+# Include with "source" cmd in gdb.
+# Use "help user-defined" for help.
+#
+# Author: Godmar Back <gback@cs.vt.edu>, Feb 2006
+#
+# $Id: gdb-macros,v 1.1 2006-04-07 18:29:34 blp Exp $
+#
+
+# for internal use
+define offsetof
+ set $rc = (char*)&((struct $arg0 *)0)->$arg1 - (char*)0
+end
+
+define list_entry
+ offsetof $arg1 $arg2
+ set $rc = ((struct $arg1 *) ((uint8_t *) ($arg0) - $rc))
+end
+
+# dump a Pintos list
+define dumplist
+ set $list = $arg0
+ set $e = $list->head.next
+ set $i = 0
+ while $e != &(($arg0).tail)
+ list_entry $e $arg1 $arg2
+ set $l = $rc
+ printf "pintos-debug: dumplist #%d: %p ", $i++, $l
+ output *$l
+ set $e = $e->next
+ printf "\n"
+ end
+end
+
+document dumplist
+ Dump the content of a Pintos list,
+ invoke as dumplist name_of_list name_of_struct name_of_elem_in_list_struct
+end
+
+# print a thread's backtrace, given a pointer to the struct thread *
+define btthread
+ if $arg0 == ($esp - ((unsigned)$esp % 4096))
+ bt
+ else
+ set $saveEIP = $eip
+ set $saveESP = $esp
+ set $saveEBP = $ebp
+
+ set $esp = ((struct thread *)$arg0)->stack
+ set $ebp = ((void**)$esp)[2]
+ set $eip = ((void**)$esp)[4]
+
+ bt
+
+ set $eip = $saveEIP
+ set $esp = $saveESP
+ set $ebp = $saveEBP
+ end
+end
+document btthread
+ Show the backtrace of a thread,
+ invoke as btthread pointer_to_struct_thread
+end
+
+# print backtraces associated with all threads in a list
+define btthreadlist
+ set $list = $arg0
+ set $e = $list->head.next
+ while $e != &(($arg0).tail)
+ list_entry $e thread $arg1
+ printf "pintos-debug: dumping backtrace of thread '%s' @%p\n", \
+ ((struct thread*)$rc)->name, $rc
+ btthread $rc
+ set $e = $e->next
+ printf "\n"
+ end
+end
+document btthreadlist
+ Given a list of threads, print each thread's backtrace
+ invoke as btthreadlist name_of_list name_of_elem_in_list_struct
+end
+
+# print a correct backtrace by adjusting $eip
+# this works best right at intr0e_stub
+define btpagefault
+ set $saveeip = $eip
+ set $eip = ((void**)$esp)[1]
+ backtrace
+ set $eip = $saveeip
+end
+document btpagefault
+ Print a backtrace of the current thread after a pagefault
+end
+
+# invoked whenever the program stops
+define hook-stop
+ # stopped at stub #0E = #14 (page fault exception handler stub)
+ if ($eip == intr0e_stub)
+ set $savedeip = ((void**)$esp)[1]
+ # if this was in user mode, the OS should handle it
+ # either handle the page fault or terminate the process
+ if ($savedeip < 0xC0000000)
+ printf "pintos-debug: a page fault exception occurred in user mode\n"
+ printf "pintos-debug: hit 'c' to continue, or 's' to step to intr_handler\n"
+ else
+ # if this was in kernel mode, a stack trace might be useful
+ printf "pintos-debug: a page fault occurred in kernel mode\n"
+ btpagefault
+ end
+ end
+end
+
+define debugpintos
+ target remote localhost:1234
+end
+document debugpintos
+ Attach debugger to pintos process
+end
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