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Date: Tue, 12 Feb 2013 15:52:52 +0100
From: Geert Uytterhoeven <geert@...ux-m68k.org>
To: Mikael Starvik <starvik@...s.com>,
Jesper Nilsson <jesper.nilsson@...s.com>
Cc: linux-cris-kernel@...s.com, linux-kernel@...r.kernel.org,
Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: [PATCH 05/10] cris/kgb: Make symbols used from asm global
arch/cris/arch-v10/kernel/built-in.o: In function `kgdb_handle_breakpoint':
(.text+0x2c3e): undefined reference to `reg'
arch/cris/arch-v10/kernel/built-in.o: In function `kgdb_handle_breakpoint':
(.text+0x2c48): undefined reference to `reg'
arch/cris/arch-v10/kernel/built-in.o: In function `kgdb_handle_breakpoint':
(.text+0x2c50): undefined reference to `reg'
arch/cris/arch-v10/kernel/built-in.o: In function `kgdb_handle_breakpoint':
(.text+0x2c58): undefined reference to `reg'
arch/cris/arch-v10/kernel/built-in.o: In function `kgdb_handle_breakpoint':
(.text+0x2c60): undefined reference to `reg'
arch/cris/arch-v10/kernel/built-in.o:(.text+0x2c68): more undefined references to `reg' follow
arch/cris/arch-v10/kernel/built-in.o: In function `is_static':
kgdb.c:(.text+0x2d46): undefined reference to `internal_stack'
kgdb.c:(.text+0x2d4e): undefined reference to `handle_exception'
kgdb.c:(.text+0x2d54): undefined reference to `reg'
kgdb.c:(.text+0x2d5c): undefined reference to `reg'
kgdb.c:(.text+0x2d64): undefined reference to `reg'
kgdb.c:(.text+0x2d6c): undefined reference to `reg'
kgdb.c:(.text+0x2d74): undefined reference to `reg'
arch/cris/arch-v10/kernel/built-in.o:kgdb.c:(.text+0x2d7c): more undefined references to `reg' follow
arch/cris/arch-v10/kernel/built-in.o: In function `kgdb_handle_serial':
(.text+0x2ef6): undefined reference to `internal_stack'
arch/cris/arch-v10/kernel/built-in.o: In function `kgdb_handle_serial':
(.text+0x2efe): undefined reference to `handle_exception'
arch/cris/arch-v10/kernel/built-in.o: In function `goback':
kgdb.c:(.text+0x2f04): undefined reference to `reg'
kgdb.c:(.text+0x2f0c): undefined reference to `reg'
kgdb.c:(.text+0x2f14): undefined reference to `reg'
kgdb.c:(.text+0x2f1c): undefined reference to `reg'
kgdb.c:(.text+0x2f24): undefined reference to `reg'
arch/cris/arch-v10/kernel/built-in.o:kgdb.c:(.text+0x2f2c): more undefined references to `reg' follow
Make reg, internal_stack, and handle_exception global to fix this.
Rename reg to cris_reg as it's a too generic name for a global symbol.
Signed-off-by: Geert Uytterhoeven <geert@...ux-m68k.org>
---
arch/cris/arch-v10/kernel/kgdb.c | 218 +++++++++++++++++++-------------------
1 files changed, 109 insertions(+), 109 deletions(-)
diff --git a/arch/cris/arch-v10/kernel/kgdb.c b/arch/cris/arch-v10/kernel/kgdb.c
index e02d2df..7e24b73 100644
--- a/arch/cris/arch-v10/kernel/kgdb.c
+++ b/arch/cris/arch-v10/kernel/kgdb.c
@@ -329,7 +329,7 @@ static int register_size[] =
/* Contains the register image of the executing thread in the assembler
part of the code in order to avoid horrible addressing modes. */
-static registers reg;
+registers cris_reg;
/* FIXME: Should this be used? Delete otherwise. */
/* Contains the assumed consistency state of the register image. Uses the
@@ -337,7 +337,7 @@ static registers reg;
static int consistency_status = SUCCESS;
/********************************** Handle exceptions ************************/
-/* The variable reg contains the register image associated with the
+/* The variable cris_reg contains the register image associated with the
current_thread_c variable. It is a complete register image created at
entry. The reg_g contains a register image of a task where the general
registers are taken from the stack and all special registers are taken
@@ -351,14 +351,14 @@ static int current_thread_c = 0;
static int current_thread_g = 0;
/* Need two register images in order to handle Hct and Hgt commands. The
- variable reg_g is in addition to reg above. */
+ variable reg_g is in addition to cris_reg above. */
static registers reg_g;
#endif /* PROCESS_SUPPORT */
/********************************** Breakpoint *******************************/
/* Use an internal stack in the breakpoint and interrupt response routines */
#define INTERNAL_STACK_SIZE 1024
-static char internal_stack[INTERNAL_STACK_SIZE];
+char internal_stack[INTERNAL_STACK_SIZE];
/* Due to the breakpoint return pointer, a state variable is needed to keep
track of whether it is a static (compiled) or dynamic (gdb-invoked)
@@ -667,7 +667,7 @@ static int
write_register (int regno, char *val)
{
int status = SUCCESS;
- registers *current_reg = ®
+ registers *current_reg = &cris_reg;
if (regno >= R0 && regno <= PC) {
/* 32-bit register with simple offset. */
@@ -737,7 +737,7 @@ write_stack_register (int thread_id, int regno, char *valptr)
static int
read_register (char regno, unsigned int *valptr)
{
- registers *current_reg = ®
+ registers *current_reg = &cris_reg;
if (regno >= R0 && regno <= PC) {
/* 32-bit register with simple offset. */
@@ -825,7 +825,7 @@ stub_is_stopped(int sigval)
/* A struct assignment translates into a libc memcpy call. Avoid
all libc functions in order to prevent recursive break points. */
- copy_registers (®_g, ®, sizeof(registers));
+ copy_registers (®_g, &cris_reg, sizeof(registers));
/* Store thread:r...; with the executing task TID. */
gdb_cris_strcpy (&remcomOutBuffer[pos], "thread:");
@@ -851,7 +851,7 @@ kill_restart (void)
/* All expected commands are sent from remote.c. Send a response according
to the description in remote.c. */
-static void
+void
handle_exception (int sigval)
{
/* Avoid warning of not used. */
@@ -877,14 +877,14 @@ handle_exception (int sigval)
{
#ifdef PROCESS_SUPPORT
/* Use the special register content in the executing thread. */
- copy_registers (®_g, ®, sizeof(registers));
+ copy_registers (®_g, &cris_reg, sizeof(registers));
/* Replace the content available on the stack. */
if (current_thread_g != executing_task) {
copy_registers_from_stack (current_thread_g, ®_g);
}
mem2hex ((unsigned char *)remcomOutBuffer, (unsigned char *)®_g, sizeof(registers));
#else
- mem2hex(remcomOutBuffer, (char *)®, sizeof(registers));
+ mem2hex(remcomOutBuffer, (char *)&cris_reg, sizeof(registers));
#endif
}
break;
@@ -897,13 +897,13 @@ handle_exception (int sigval)
#ifdef PROCESS_SUPPORT
hex2mem ((unsigned char *)®_g, &remcomInBuffer[1], sizeof(registers));
if (current_thread_g == executing_task) {
- copy_registers (®, ®_g, sizeof(registers));
+ copy_registers (&cris_reg, ®_g, sizeof(registers));
}
else {
copy_registers_to_stack(current_thread_g, ®_g);
}
#else
- hex2mem((char *)®, &remcomInBuffer[1], sizeof(registers));
+ hex2mem((char *)&cris_reg, &remcomInBuffer[1], sizeof(registers));
#endif
gdb_cris_strcpy (remcomOutBuffer, "OK");
break;
@@ -1004,7 +1004,7 @@ handle_exception (int sigval)
Success: return to the executing thread.
Failure: will never know. */
if (remcomInBuffer[1] != '\0') {
- reg.pc = gdb_cris_strtol (&remcomInBuffer[1], 0, 16);
+ cris_reg.pc = gdb_cris_strtol (&remcomInBuffer[1], 0, 16);
}
enableDebugIRQ();
return;
@@ -1202,37 +1202,37 @@ asm ("\n"
";;\n"
";; Create a register image of the caller\n"
";;\n"
-" move $dccr,[reg+0x5E] ; Save the flags in DCCR before disable interrupts\n"
+" move $dccr,[cris_reg+0x5E] ; Save the flags in DCCR before disable interrupts\n"
" di ; Disable interrupts\n"
-" move.d $r0,[reg] ; Save R0\n"
-" move.d $r1,[reg+0x04] ; Save R1\n"
-" move.d $r2,[reg+0x08] ; Save R2\n"
-" move.d $r3,[reg+0x0C] ; Save R3\n"
-" move.d $r4,[reg+0x10] ; Save R4\n"
-" move.d $r5,[reg+0x14] ; Save R5\n"
-" move.d $r6,[reg+0x18] ; Save R6\n"
-" move.d $r7,[reg+0x1C] ; Save R7\n"
-" move.d $r8,[reg+0x20] ; Save R8\n"
-" move.d $r9,[reg+0x24] ; Save R9\n"
-" move.d $r10,[reg+0x28] ; Save R10\n"
-" move.d $r11,[reg+0x2C] ; Save R11\n"
-" move.d $r12,[reg+0x30] ; Save R12\n"
-" move.d $r13,[reg+0x34] ; Save R13\n"
-" move.d $sp,[reg+0x38] ; Save SP (R14)\n"
+" move.d $r0,[cris_reg] ; Save R0\n"
+" move.d $r1,[cris_reg+0x04] ; Save R1\n"
+" move.d $r2,[cris_reg+0x08] ; Save R2\n"
+" move.d $r3,[cris_reg+0x0C] ; Save R3\n"
+" move.d $r4,[cris_reg+0x10] ; Save R4\n"
+" move.d $r5,[cris_reg+0x14] ; Save R5\n"
+" move.d $r6,[cris_reg+0x18] ; Save R6\n"
+" move.d $r7,[cris_reg+0x1C] ; Save R7\n"
+" move.d $r8,[cris_reg+0x20] ; Save R8\n"
+" move.d $r9,[cris_reg+0x24] ; Save R9\n"
+" move.d $r10,[cris_reg+0x28] ; Save R10\n"
+" move.d $r11,[cris_reg+0x2C] ; Save R11\n"
+" move.d $r12,[cris_reg+0x30] ; Save R12\n"
+" move.d $r13,[cris_reg+0x34] ; Save R13\n"
+" move.d $sp,[cris_reg+0x38] ; Save SP (R14)\n"
";; Due to the old assembler-versions BRP might not be recognized\n"
" .word 0xE670 ; move brp,$r0\n"
" subq 2,$r0 ; Set to address of previous instruction.\n"
-" move.d $r0,[reg+0x3c] ; Save the address in PC (R15)\n"
-" clear.b [reg+0x40] ; Clear P0\n"
-" move $vr,[reg+0x41] ; Save special register P1\n"
-" clear.w [reg+0x42] ; Clear P4\n"
-" move $ccr,[reg+0x44] ; Save special register CCR\n"
-" move $mof,[reg+0x46] ; P7\n"
-" clear.d [reg+0x4A] ; Clear P8\n"
-" move $ibr,[reg+0x4E] ; P9,\n"
-" move $irp,[reg+0x52] ; P10,\n"
-" move $srp,[reg+0x56] ; P11,\n"
-" move $dtp0,[reg+0x5A] ; P12, register BAR, assembler might not know BAR\n"
+" move.d $r0,[cris_reg+0x3c] ; Save the address in PC (R15)\n"
+" clear.b [cris_reg+0x40] ; Clear P0\n"
+" move $vr,[cris_reg+0x41] ; Save special register P1\n"
+" clear.w [cris_reg+0x42] ; Clear P4\n"
+" move $ccr,[cris_reg+0x44] ; Save special register CCR\n"
+" move $mof,[cris_reg+0x46] ; P7\n"
+" clear.d [cris_reg+0x4A] ; Clear P8\n"
+" move $ibr,[cris_reg+0x4E] ; P9,\n"
+" move $irp,[cris_reg+0x52] ; P10,\n"
+" move $srp,[cris_reg+0x56] ; P11,\n"
+" move $dtp0,[cris_reg+0x5A] ; P12, register BAR, assembler might not know BAR\n"
" ; P13, register DCCR already saved\n"
";; Due to the old assembler-versions BRP might not be recognized\n"
" .word 0xE670 ; move brp,r0\n"
@@ -1246,8 +1246,8 @@ asm ("\n"
"is_static:\n"
" moveq 1,$r1\n"
" move.b $r1,[is_dyn_brkp] ; Set the state variable to dynamic breakpoint\n"
-" move.d $r0,[reg+0x62] ; Save the return address in BRP\n"
-" move $usp,[reg+0x66] ; USP\n"
+" move.d $r0,[cris_reg+0x62] ; Save the return address in BRP\n"
+" move $usp,[cris_reg+0x66] ; USP\n"
";;\n"
";; Handle the communication\n"
";;\n"
@@ -1257,28 +1257,28 @@ asm ("\n"
";;\n"
";; Return to the caller\n"
";;\n"
-" move.d [reg],$r0 ; Restore R0\n"
-" move.d [reg+0x04],$r1 ; Restore R1\n"
-" move.d [reg+0x08],$r2 ; Restore R2\n"
-" move.d [reg+0x0C],$r3 ; Restore R3\n"
-" move.d [reg+0x10],$r4 ; Restore R4\n"
-" move.d [reg+0x14],$r5 ; Restore R5\n"
-" move.d [reg+0x18],$r6 ; Restore R6\n"
-" move.d [reg+0x1C],$r7 ; Restore R7\n"
-" move.d [reg+0x20],$r8 ; Restore R8\n"
-" move.d [reg+0x24],$r9 ; Restore R9\n"
-" move.d [reg+0x28],$r10 ; Restore R10\n"
-" move.d [reg+0x2C],$r11 ; Restore R11\n"
-" move.d [reg+0x30],$r12 ; Restore R12\n"
-" move.d [reg+0x34],$r13 ; Restore R13\n"
+" move.d [cris_reg],$r0 ; Restore R0\n"
+" move.d [cris_reg+0x04],$r1 ; Restore R1\n"
+" move.d [cris_reg+0x08],$r2 ; Restore R2\n"
+" move.d [cris_reg+0x0C],$r3 ; Restore R3\n"
+" move.d [cris_reg+0x10],$r4 ; Restore R4\n"
+" move.d [cris_reg+0x14],$r5 ; Restore R5\n"
+" move.d [cris_reg+0x18],$r6 ; Restore R6\n"
+" move.d [cris_reg+0x1C],$r7 ; Restore R7\n"
+" move.d [cris_reg+0x20],$r8 ; Restore R8\n"
+" move.d [cris_reg+0x24],$r9 ; Restore R9\n"
+" move.d [cris_reg+0x28],$r10 ; Restore R10\n"
+" move.d [cris_reg+0x2C],$r11 ; Restore R11\n"
+" move.d [cris_reg+0x30],$r12 ; Restore R12\n"
+" move.d [cris_reg+0x34],$r13 ; Restore R13\n"
";;\n"
";; FIXME: Which registers should be restored?\n"
";;\n"
-" move.d [reg+0x38],$sp ; Restore SP (R14)\n"
-" move [reg+0x56],$srp ; Restore the subroutine return pointer.\n"
-" move [reg+0x5E],$dccr ; Restore DCCR\n"
-" move [reg+0x66],$usp ; Restore USP\n"
-" jump [reg+0x62] ; A jump to the content in register BRP works.\n"
+" move.d [cris_reg+0x38],$sp ; Restore SP (R14)\n"
+" move [cris_reg+0x56],$srp ; Restore the subroutine return pointer.\n"
+" move [cris_reg+0x5E],$dccr ; Restore DCCR\n"
+" move [cris_reg+0x66],$usp ; Restore USP\n"
+" jump [cris_reg+0x62] ; A jump to the content in register BRP works.\n"
" nop ;\n"
"\n");
@@ -1298,39 +1298,39 @@ asm ("\n"
";; Response to a serial interrupt\n"
";;\n"
"\n"
-" move $dccr,[reg+0x5E] ; Save the flags in DCCR\n"
+" move $dccr,[cris_reg+0x5E] ; Save the flags in DCCR\n"
" di ; Disable interrupts\n"
-" move.d $r0,[reg] ; Save R0\n"
-" move.d $r1,[reg+0x04] ; Save R1\n"
-" move.d $r2,[reg+0x08] ; Save R2\n"
-" move.d $r3,[reg+0x0C] ; Save R3\n"
-" move.d $r4,[reg+0x10] ; Save R4\n"
-" move.d $r5,[reg+0x14] ; Save R5\n"
-" move.d $r6,[reg+0x18] ; Save R6\n"
-" move.d $r7,[reg+0x1C] ; Save R7\n"
-" move.d $r8,[reg+0x20] ; Save R8\n"
-" move.d $r9,[reg+0x24] ; Save R9\n"
-" move.d $r10,[reg+0x28] ; Save R10\n"
-" move.d $r11,[reg+0x2C] ; Save R11\n"
-" move.d $r12,[reg+0x30] ; Save R12\n"
-" move.d $r13,[reg+0x34] ; Save R13\n"
-" move.d $sp,[reg+0x38] ; Save SP (R14)\n"
-" move $irp,[reg+0x3c] ; Save the address in PC (R15)\n"
-" clear.b [reg+0x40] ; Clear P0\n"
-" move $vr,[reg+0x41] ; Save special register P1,\n"
-" clear.w [reg+0x42] ; Clear P4\n"
-" move $ccr,[reg+0x44] ; Save special register CCR\n"
-" move $mof,[reg+0x46] ; P7\n"
-" clear.d [reg+0x4A] ; Clear P8\n"
-" move $ibr,[reg+0x4E] ; P9,\n"
-" move $irp,[reg+0x52] ; P10,\n"
-" move $srp,[reg+0x56] ; P11,\n"
-" move $dtp0,[reg+0x5A] ; P12, register BAR, assembler might not know BAR\n"
+" move.d $r0,[cris_reg] ; Save R0\n"
+" move.d $r1,[cris_reg+0x04] ; Save R1\n"
+" move.d $r2,[cris_reg+0x08] ; Save R2\n"
+" move.d $r3,[cris_reg+0x0C] ; Save R3\n"
+" move.d $r4,[cris_reg+0x10] ; Save R4\n"
+" move.d $r5,[cris_reg+0x14] ; Save R5\n"
+" move.d $r6,[cris_reg+0x18] ; Save R6\n"
+" move.d $r7,[cris_reg+0x1C] ; Save R7\n"
+" move.d $r8,[cris_reg+0x20] ; Save R8\n"
+" move.d $r9,[cris_reg+0x24] ; Save R9\n"
+" move.d $r10,[cris_reg+0x28] ; Save R10\n"
+" move.d $r11,[cris_reg+0x2C] ; Save R11\n"
+" move.d $r12,[cris_reg+0x30] ; Save R12\n"
+" move.d $r13,[cris_reg+0x34] ; Save R13\n"
+" move.d $sp,[cris_reg+0x38] ; Save SP (R14)\n"
+" move $irp,[cris_reg+0x3c] ; Save the address in PC (R15)\n"
+" clear.b [cris_reg+0x40] ; Clear P0\n"
+" move $vr,[cris_reg+0x41] ; Save special register P1,\n"
+" clear.w [cris_reg+0x42] ; Clear P4\n"
+" move $ccr,[cris_reg+0x44] ; Save special register CCR\n"
+" move $mof,[cris_reg+0x46] ; P7\n"
+" clear.d [cris_reg+0x4A] ; Clear P8\n"
+" move $ibr,[cris_reg+0x4E] ; P9,\n"
+" move $irp,[cris_reg+0x52] ; P10,\n"
+" move $srp,[cris_reg+0x56] ; P11,\n"
+" move $dtp0,[cris_reg+0x5A] ; P12, register BAR, assembler might not know BAR\n"
" ; P13, register DCCR already saved\n"
";; Due to the old assembler-versions BRP might not be recognized\n"
" .word 0xE670 ; move brp,r0\n"
-" move.d $r0,[reg+0x62] ; Save the return address in BRP\n"
-" move $usp,[reg+0x66] ; USP\n"
+" move.d $r0,[cris_reg+0x62] ; Save the return address in BRP\n"
+" move $usp,[cris_reg+0x66] ; USP\n"
"\n"
";; get the serial character (from debugport.c) and check if it is a ctrl-c\n"
"\n"
@@ -1339,7 +1339,7 @@ asm ("\n"
" bne goback\n"
" nop\n"
"\n"
-" move.d [reg+0x5E], $r10 ; Get DCCR\n"
+" move.d [cris_reg+0x5E], $r10 ; Get DCCR\n"
" btstq 8, $r10 ; Test the U-flag.\n"
" bmi goback\n"
" nop\n"
@@ -1355,27 +1355,27 @@ asm ("\n"
";;\n"
";; Return to the caller\n"
";;\n"
-" move.d [reg],$r0 ; Restore R0\n"
-" move.d [reg+0x04],$r1 ; Restore R1\n"
-" move.d [reg+0x08],$r2 ; Restore R2\n"
-" move.d [reg+0x0C],$r3 ; Restore R3\n"
-" move.d [reg+0x10],$r4 ; Restore R4\n"
-" move.d [reg+0x14],$r5 ; Restore R5\n"
-" move.d [reg+0x18],$r6 ; Restore R6\n"
-" move.d [reg+0x1C],$r7 ; Restore R7\n"
-" move.d [reg+0x20],$r8 ; Restore R8\n"
-" move.d [reg+0x24],$r9 ; Restore R9\n"
-" move.d [reg+0x28],$r10 ; Restore R10\n"
-" move.d [reg+0x2C],$r11 ; Restore R11\n"
-" move.d [reg+0x30],$r12 ; Restore R12\n"
-" move.d [reg+0x34],$r13 ; Restore R13\n"
+" move.d [cris_reg],$r0 ; Restore R0\n"
+" move.d [cris_reg+0x04],$r1 ; Restore R1\n"
+" move.d [cris_reg+0x08],$r2 ; Restore R2\n"
+" move.d [cris_reg+0x0C],$r3 ; Restore R3\n"
+" move.d [cris_reg+0x10],$r4 ; Restore R4\n"
+" move.d [cris_reg+0x14],$r5 ; Restore R5\n"
+" move.d [cris_reg+0x18],$r6 ; Restore R6\n"
+" move.d [cris_reg+0x1C],$r7 ; Restore R7\n"
+" move.d [cris_reg+0x20],$r8 ; Restore R8\n"
+" move.d [cris_reg+0x24],$r9 ; Restore R9\n"
+" move.d [cris_reg+0x28],$r10 ; Restore R10\n"
+" move.d [cris_reg+0x2C],$r11 ; Restore R11\n"
+" move.d [cris_reg+0x30],$r12 ; Restore R12\n"
+" move.d [cris_reg+0x34],$r13 ; Restore R13\n"
";;\n"
";; FIXME: Which registers should be restored?\n"
";;\n"
-" move.d [reg+0x38],$sp ; Restore SP (R14)\n"
-" move [reg+0x56],$srp ; Restore the subroutine return pointer.\n"
-" move [reg+0x5E],$dccr ; Restore DCCR\n"
-" move [reg+0x66],$usp ; Restore USP\n"
+" move.d [cris_reg+0x38],$sp ; Restore SP (R14)\n"
+" move [cris_reg+0x56],$srp ; Restore the subroutine return pointer.\n"
+" move [cris_reg+0x5E],$dccr ; Restore DCCR\n"
+" move [cris_reg+0x66],$usp ; Restore USP\n"
" reti ; Return from the interrupt routine\n"
" nop\n"
"\n");
--
1.7.0.4
--
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