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* s390-nat.c (supply_gregset, fill_gregset): On the s390x, the

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elements of gregset_t are 64 bits each, but access registers
are still 32 bits, so they're packed two per gregset_t
element.  Unpack/pack them properly.
This commit is contained in:
Jim Blandy
2003-06-03 05:36:53 +00:00
parent 308f753f1c
commit 1bb792e9e8
2 changed files with 49 additions and 2 deletions
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44
gdb/s390-nat.c
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@@ -251,9 +251,26 @@ supply_gregset (gregset_t * gregsetp)
for (regi = 0; regi < S390_NUM_GPRS; regi++)
supply_register (S390_GP0_REGNUM + regi,
(char *) &gregp[S390_GP0_REGNUM + regi]);
#if defined (CONFIG_ARCH_S390X)
/* On the s390x, each element of gregset_t is 8 bytes long, but
each access register is still only 32 bits long. So they're
packed two per element. It's apparently traditional that
gregset_t must be an array, so when the registers it provides
have different sizes, something has to get strange
somewhere. */
{
unsigned int *acrs = (unsigned int *) &gregp[S390_FIRST_ACR];
for (regi = 0; regi < S390_NUM_ACRS; regi++)
supply_register (S390_FIRST_ACR + regi, (char *) &acrs[regi]);
}
#else
for (regi = 0; regi < S390_NUM_ACRS; regi++)
supply_register (S390_FIRST_ACR + regi,
(char *) &gregp[S390_FIRST_ACR + regi]);
(char *) &gregp[S390_FIRST_ACR + regi]);
#endif
/* unfortunately this isn't in gregsetp */
for (regi = 0; regi < S390_NUM_CRS; regi++)
supply_register (S390_FIRST_CR + regi, NULL);
@@ -284,12 +301,35 @@ fill_gregset (gregset_t * gregsetp, int regno)
for (regi = 0; regi < S390_NUM_GPRS; regi++)
regcache_collect (S390_GP0_REGNUM + regi,
&gregp[S390_GP0_REGNUM + regi]);
#if defined (CONFIG_ARCH_S390X)
/* See the comments about the access registers in
supply_gregset, above. */
{
unsigned int *acrs = (unsigned int *) &gregp[S390_FIRST_ACR];
for (regi = 0; regi < S390_NUM_ACRS; regi++)
regcache_collect (S390_FIRST_ACR + regi, &acrs[regi]);
}
#else
for (regi = 0; regi < S390_NUM_ACRS; regi++)
regcache_collect (S390_FIRST_ACR + regi,
&gregp[S390_FIRST_ACR + regi]);
#endif
}
else if (regno >= S390_PSWM_REGNUM && regno <= S390_LAST_ACR)
else if (regno >= S390_PSWM_REGNUM && regno < S390_FIRST_ACR)
regcache_collect (regno, &gregp[regno]);
else if (regno >= S390_FIRST_ACR && regno <= S390_LAST_ACR)
{
#if defined (CONFIG_ARCH_S390X)
/* See the comments about the access registers in
supply_gregset, above. */
unsigned int *acrs = (unsigned int *) &gregp[S390_FIRST_ACR];
regcache_collect (regno, &acrs[regno - S390_FIRST_ACR]);
#else
regcache_collect (regno, &gregp[regno]);
#endif
}
}
/* Given a pointer to a floating point register set in /proc format