[v4,08/11] s390: gdbarch_tdep add hook for syscall record
Commit Message
Most parts of s390_process_record are common for the architecture. Only
the systemcall handling differs between the OSes. In order to be able to
move s390_process_record to a common code file add a hook to record
syscalls to gdbarch_tdep. So every OS can implement their own handling.
gdb/ChangeLog:
* s390-linux-tdep.c (gdbarch_tdep.s390_syscall_record): New hook.
(s390_process_record, s390_gdbarch_tdep_alloc)
(s390_linux_init_abi_any): Use/Set new hook.
---
gdb/s390-linux-tdep.c | 22 ++++++++++++++++++++--
1 file changed, 20 insertions(+), 2 deletions(-)
@@ -122,6 +122,9 @@ struct gdbarch_tdep
bool have_tdb;
bool have_vx;
bool have_gs;
+
+ /* Hook to record OS specific systemcall. */
+ int (*s390_syscall_record) (struct regcache *regcache, LONGEST svc_number);
};
@@ -3809,6 +3812,7 @@ static int
s390_process_record (struct gdbarch *gdbarch, struct regcache *regcache,
CORE_ADDR addr)
{
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
uint16_t insn[3] = {0};
/* Instruction as bytes. */
uint8_t ibyte[6];
@@ -3965,8 +3969,16 @@ ex:
case 0x0a:
/* SVC - supervisor call */
- if (s390_linux_syscall_record (regcache, ibyte[1]))
- return -1;
+ if (tdep->s390_syscall_record != NULL)
+ {
+ if (tdep->s390_syscall_record (regcache, ibyte[1]))
+ return -1;
+ }
+ else
+ {
+ printf_unfiltered (_("no syscall record support\n"));
+ return -1;
+ }
break;
case 0x0b: /* BSM - branch and set mode */
@@ -7998,6 +8010,8 @@ s390_gdbarch_tdep_alloc ()
tdep->have_vx = false;
tdep->have_gs = false;
+ tdep->s390_syscall_record = NULL;
+
return tdep;
}
@@ -8196,6 +8210,10 @@ s390_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
static void
s390_linux_init_abi_any (struct gdbarch_info info, struct gdbarch *gdbarch)
{
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+
+ tdep->s390_syscall_record = s390_linux_syscall_record;
+
linux_init_abi (info, gdbarch);
/* Register handling. */