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gdb/s390: Fill guess_tracepoint_registers hook.

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gdb/ChangeLog:

	* s390-linux-tdep.c (s390_guess_tracepoint_registers): New function.
	(s390_gdbarch_init): Fill guess_tracepoint_registers hook.
This commit is contained in:
Marcin Kościelnicki 2016-01-23 23:53:41 +01:00
parent 012b3a217a
commit f79a3bae87
2 changed files with 40 additions and 0 deletions
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5
gdb/ChangeLog
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@ -1,3 +1,8 @@
2016-02-18 Marcin Kościelnicki <koriakin@0x04.net>
* s390-linux-tdep.c (s390_guess_tracepoint_registers): New function.
(s390_gdbarch_init): Fill guess_tracepoint_registers hook.
2016-02-18 Walfred Tedeschi <walfred.tedeschi@intel.com>
* NEWS: Add entry for bound violation.

35
gdb/s390-linux-tdep.c
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@ -167,6 +167,40 @@ s390_write_pc (struct regcache *regcache, CORE_ADDR pc)
regcache_cooked_write_unsigned (regcache, S390_SYSTEM_CALL_REGNUM, 0);
}
/* The "guess_tracepoint_registers" gdbarch method. */
static void
s390_guess_tracepoint_registers (struct gdbarch *gdbarch,
struct regcache *regcache,
CORE_ADDR addr)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
int sz = register_size (gdbarch, S390_PSWA_REGNUM);
gdb_byte *reg = (gdb_byte *) alloca (sz);
ULONGEST pswm, pswa;
/* Set PSWA from the location and a default PSWM (the only part we're
unlikely to get right is the CC). */
if (tdep->abi == ABI_LINUX_S390)
{
/* 31-bit PSWA needs high bit set (it's very unlikely the target
was in 24-bit mode). */
pswa = addr | 0x80000000UL;
pswm = 0x070d0000UL;
}
else
{
pswa = addr;
pswm = 0x0705000180000000ULL;
}
store_unsigned_integer (reg, sz, gdbarch_byte_order (gdbarch), pswa);
regcache_raw_supply (regcache, S390_PSWA_REGNUM, reg);
store_unsigned_integer (reg, sz, gdbarch_byte_order (gdbarch), pswm);
regcache_raw_supply (regcache, S390_PSWM_REGNUM, reg);
}
/* DWARF Register Mapping. */
@ -7857,6 +7891,7 @@ s390_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
s390_iterate_over_regset_sections);
set_gdbarch_cannot_store_register (gdbarch, s390_cannot_store_register);
set_gdbarch_write_pc (gdbarch, s390_write_pc);
set_gdbarch_guess_tracepoint_registers (gdbarch, s390_guess_tracepoint_registers);
set_gdbarch_pseudo_register_read (gdbarch, s390_pseudo_register_read);
set_gdbarch_pseudo_register_write (gdbarch, s390_pseudo_register_write);
set_tdesc_pseudo_register_name (gdbarch, s390_pseudo_register_name);