bsd-user/freebsd/os-sys.c

4  *  Copyright (c) 2013-15 Stacey D. Son
28  * 0 means variable length for strings and structures
30  * Note: Not all types appear to be used in-tree.
64  * Limit the amount of available memory to be most of the 32-bit address
68 static const abi_ulong guest_max_mem = UINT32_MAX - 0x100c000 + 1;
106  * placeholder until bsd-user downstream upstreams this with its thread support
153  * For strings and node data, there's no conversion needed.
204              * 32-bit and 64-bit machines. All other integral types have the  in h2g_old_sysctl()
238     size_t i, num = holdlen / sizeof(uint32_t);  in sysctl_name2oid()  local
240     for (i = 0; i < num; i++) {  in sysctl_name2oid()
340                 if (sysctl(mib, 2, &lvalue, &len, NULL, 0) == -1) {  in do_freebsd_sysctl_oid()
341                     ret = -1;  in do_freebsd_sysctl_oid()
376                 if (sysctlbyname("hw.availpages", &lvalue, &len, NULL, 0) == -1) {  in do_freebsd_sysctl_oid()
377                     ret = -1;  in do_freebsd_sysctl_oid()
409      * For long and ulong with a 64-bit host and a 32-bit target we have to do  in do_freebsd_sysctl_oid()
457              * For the 32-bit on 64-bit case, for longs we need to copy the  in do_freebsd_sysctl_oid()
458              * now-converted buffer to the target and free the buffer.  in do_freebsd_sysctl_oid()
476  * really provide it in bsd-user.  Notably, we must always translate the names
485     abi_long ret = -TARGET_EFAULT;  in do_freebsd_sysctlbyname()
492     /* oldlenp is read/write, pre-check here for write */  in do_freebsd_sysctlbyname()
519         ret = -TARGET_EINVAL;  in do_freebsd_sysctlbyname()
527      * writeability pre-checked above. __sysctl(2) returns ENOMEM and updates  in do_freebsd_sysctlbyname()
530     if (oldlenp && (ret == 0 || ret == -TARGET_ENOMEM)) {  in do_freebsd_sysctlbyname()
544     abi_long ret = -TARGET_EFAULT;  in do_freebsd_sysctl()
550     /* oldlenp is read/write, pre-check here for write */  in do_freebsd_sysctl()
582      * writeability pre-checked above. __sysctl(2) returns ENOMEM and updates  in do_freebsd_sysctl()
585     if (oldlenp && (ret == 0 || ret == -TARGET_ENOMEM)) {  in do_freebsd_sysctl()