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gdb/linux-record: Fix [gs]etgroups16 syscall

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Memory size for getgroups16 needs to be multiplied by entry count, and only
needs recording if the pointer is non-NULL.  setgroups16, on the other hand,
doesn't write to user memory and doesn't need special handling at all.

gdb/ChangeLog:

	* linux-record.c (record_linux_system_call): Fix [gs]etgroups16.
This commit is contained in:
Marcin Kościelnicki
2015-10-30 15:51:59 +00:00
committed by Pedro Alves
parent b80d067ff0
commit cb658d218b
2 changed files with 14 additions and 7 deletions
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17
gdb/linux-record.c
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@ -628,16 +628,19 @@ record_linux_system_call (enum gdb_syscall syscall,
case gdb_sys_getgroups16:
regcache_raw_read_unsigned (regcache, tdep->arg2, &tmpulongest);
if (record_full_arch_list_add_mem ((CORE_ADDR) tmpulongest,
tdep->size_old_gid_t))
return -1;
if (tmpulongest)
{
ULONGEST gidsetsize;
regcache_raw_read_unsigned (regcache, tdep->arg1,
&gidsetsize);
tmpint = tdep->size_old_gid_t * (int) gidsetsize;
if (record_full_arch_list_add_mem ((CORE_ADDR) tmpulongest, tmpint))
return -1;
}
break;
case gdb_sys_setgroups16:
regcache_raw_read_unsigned (regcache, tdep->arg2, &tmpulongest);
if (record_full_arch_list_add_mem ((CORE_ADDR) tmpulongest,
tdep->size_old_gid_t))
return -1;
break;
case gdb_old_select: