On x86-64 gcc4 generates a compile-time error in acpi:
{standard input}: Assembler messages:
{standard input}:334: Error: suffix or operands invalid for `pop'
{standard input}:343: Error: suffix or operands invalid for `push'
{standard input}:411: Error: suffix or operands invalid for `pop'
{standard input}:425: Error: suffix or operands invalid for `push'
make[3]: *** [bus.o] Error 1
make[3]: Leaving directory `/tmp/linux-2.4.31/drivers/acpi'
make[2]: *** [first_rule] Error 2
make[2]: Leaving directory `/tmp/linux-2.4.31/drivers/acpi'
make[1]: *** [_subdir_acpi] Error 2
make[1]: Leaving directory `/tmp/linux-2.4.31/drivers'
make: *** [_dir_drivers] Error 2
This is because a 32-bit operand is used where x86_64 needs a
64-bit operand, leading to syntax errors in the assembly code.
The fix (backport from 2.6) is to use long for the offending operands.
Signed-off-by: Mikael Pettersson <[email protected]>
drivers/acpi/bus.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff -rupN linux-2.4.31/drivers/acpi/bus.c linux-2.4.31.gcc4-x86_64-acpi-asm-errors/drivers/acpi/bus.c
--- linux-2.4.31/drivers/acpi/bus.c 2005-01-19 18:00:53.000000000 +0100
+++ linux-2.4.31.gcc4-x86_64-acpi-asm-errors/drivers/acpi/bus.c 2005-06-12 11:45:56.000000000 +0200
@@ -623,7 +623,7 @@ acpi_bus_generate_event (
int data)
{
struct acpi_bus_event *event = NULL;
- u32 flags = 0;
+ unsigned long flags = 0;
ACPI_FUNCTION_TRACE("acpi_bus_generate_event");
@@ -656,7 +656,7 @@ int
acpi_bus_receive_event (
struct acpi_bus_event *event)
{
- u32 flags = 0;
+ unsigned long flags = 0;
struct acpi_bus_event *entry = NULL;
DECLARE_WAITQUEUE(wait, current);
-
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