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a2aeb24eff
freebsd-nq/sys/ia64/include
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Marcel Moolenaar a2aeb24eff Implement functions calls from within DDB on ia64. On ia64 a function 
pointer doesn't point to the first instruction of that function, but
rather to a descriptor. The descriptor has the address of the first
instruction, as well as the value of the global pointer. The symbol
table doesn't know anything about descriptors, so if you lookup the
name of a function you get the address of the first instruction. The
cast from the address, which is the result of the symbol lookup, to a
function pointer as is done in db_fncall is therefore invalid.
Abstract this detail behind the DB_CALL macro. By default DB_CALL is
defined as db_fncall_generic, which yields the old behaviour. On ia64
the macro is defined as db_fncall_ia64, in which a descriptor is
constructed to yield a valid function pointer.

While here, introduce DB_MAXARGS. DB_MAXARGS replaces the existing
(local) MAXARGS. The DB_MAXARGS macro can be defined by platforms to
create a convenient maximum. By default this will be the legacy 10.
On ia64 we define this macro to be 8, for 8 is the maximum number of
arguments that can be passed in registers. This avoids having to
implement spilling of arguments on the memory stack.

Approved by: re (dwhite)
2005-07-02 23:52:37 +00:00
..
pc
_bus.h Break out the definition of bus_space_{tag,handle}_t and a few other types 2005-04-18 21:45:34 +00:00
_inttypes.h
_limits.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
_regset.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
_stdint.h <stdint.h> should define WINT_M{AX,IN} independent from whether WCHAR_MIN is 2004-05-18 16:04:57 +00:00
_types.h netchild's mega-patch to isolate compiler dependencies into a central 2005-03-02 21:33:29 +00:00
acpica_machdep.h Move the code for halting the CPU (acpi_cpu_c1) into machdep files. 2004-10-11 05:39:15 +00:00
asm.h nit in /*- 2005-01-31 08:16:45 +00:00
atomic.h For the atomic_{add|clear|set|subtract} family of inlines, return the 2004-09-22 19:58:43 +00:00
bootinfo.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
bus_dma.h Refactor the bus_dma header files so that the interface is described in 2005-03-14 16:46:28 +00:00
bus.h Remove bus_{mem,p}io.h and related code for a micro-optimization on i386 2005-05-29 04:42:30 +00:00
clock.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
cpu.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
cpufunc.h netchild's mega-patch to isolate compiler dependencies into a central 2005-03-02 21:33:29 +00:00
db_machdep.h Implement functions calls from within DDB on ia64. On ia64 a function 2005-07-02 23:52:37 +00:00
dig64.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
efi.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
elf.h
endian.h netchild's mega-patch to isolate compiler dependencies into a central 2005-03-02 21:33:29 +00:00
exec.h Use a common multi-inclusion protection, and add such a 2005-02-19 21:16:48 +00:00
float.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
floatingpoint.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
fpu.h Use primitive types to avoid creating an artificial header dependency: 2004-12-11 06:15:12 +00:00
frame.h
gdb_machdep.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
ia64_cpu.h
ieee.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
ieeefp.h
in_cksum.h netchild's mega-patch to isolate compiler dependencies into a central 2005-03-02 21:33:29 +00:00
intr.h
intrcnt.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
kdb.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
limits.h netchild's mega-patch to isolate compiler dependencies into a central 2005-03-02 21:33:29 +00:00
mca.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
md_var.h Further enhance the handling of misaligned loads and stores: 2005-01-02 00:20:54 +00:00
memdev.h Remove extraneous ';'. 2004-08-01 18:51:44 +00:00
mutex.h
nexusvar.h
pal.h
param.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
pcb.h As I said: the previous commit was untested... Remove an #endif which 2004-08-16 19:05:08 +00:00
pci_cfgreg.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
pcpu.h Fixed a pedantic syntax error (a stray semicolon at the end of 2003-11-17 03:40:41 +00:00
pmap.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
pmc_mdep.h MFP4: 2005-06-09 19:45:09 +00:00
proc.h Divorce critical sections from spinlocks. Critical sections as denoted by 2005-04-04 21:53:56 +00:00
profile.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
pte.h Remove struct ia64_itir and use a plain old uint64_t instead. 2004-11-21 21:40:08 +00:00
ptrace.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
reg.h Replace uint64_t with unsigned long in struct dbreg. 2004-03-20 05:27:14 +00:00
reloc.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
resource.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
runq.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
sal.h MFp4: 2004-09-19 03:50:46 +00:00
sapicreg.h
sapicvar.h
setjmp.h
sf_buf.h MFamd64 2004-04-18 07:11:12 +00:00
sigframe.h
signal.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
smp.h Define IPI_PREEMPT. Update a nearby comment while I'm here. 2005-06-12 19:03:01 +00:00
stdarg.h netchild's mega-patch to isolate compiler dependencies into a central 2005-03-02 21:33:29 +00:00
sysarch.h Provide sysarch(2) prototypes in the MD sysarch.h headers. While I'm 2004-01-09 16:52:09 +00:00
ucontext.h Simplify the contexts created by the kernel and remove the related 2003-12-07 20:47:33 +00:00
unwind.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00
varargs.h
vmparam.h /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 22:18:23 +00:00