Changeset 14f8fd4 in mainline for kernel


Ignore:
Timestamp:
2012-03-15T22:52:33Z (14 years ago)
Author:
Jan Vesely <jano.vesely@…>
Branches:
lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
Children:
bfb3d60
Parents:
43cd499 (diff), dbbba51c (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.
Message:

Mainline changes with some extra USB fixes.

Location:
kernel
Files:
22 edited

Legend:

Unmodified
Added
Removed
  • kernel/arch/amd64/include/context.h

    r43cd499 r14f8fd4  
    3838#include <typedefs.h>
    3939
    40 /* According to ABI the stack MUST be aligned on
     40/*
     41 * According to ABI the stack MUST be aligned on
    4142 * 16-byte boundary. If it is not, the va_arg calling will
    4243 * panic sooner or later
  • kernel/arch/arm32/include/context.h

    r43cd499 r14f8fd4  
    2727 */
    2828
    29 /** @addtogroup arm32   
     29/** @addtogroup arm32
    3030 * @{
    3131 */
  • kernel/arch/ia64/include/context.h

    r43cd499 r14f8fd4  
    2727 */
    2828
    29 /** @addtogroup ia64   
     29/** @addtogroup ia64
    3030 * @{
    3131 */
     
    4747 * One item is put onto the stack to support get_stack_base().
    4848 */
    49 #define SP_DELTA        (0 + ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT))
     49#define SP_DELTA  (0 + ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT))
    5050
    5151/* RSE stack starts at the bottom of memory stack, hence the division by 2. */
    52 #define context_set(c, _pc, stack, size)                                                                \
    53         do {                                                                                            \
    54                 (c)->pc = (uintptr_t) _pc;                                                              \
    55                 (c)->bsp = ((uintptr_t) stack) + ALIGN_UP((size / 2), REGISTER_STACK_ALIGNMENT);        \
    56                 (c)->ar_pfs &= PFM_MASK;                                                                \
    57                 (c)->sp = ((uintptr_t) stack) + ALIGN_UP((size / 2), STACK_ALIGNMENT) - SP_DELTA;       \
    58         } while (0);
     52#define context_set(c, _pc, stack, size) \
     53        do { \
     54                (c)->pc = (uintptr_t) _pc; \
     55                (c)->bsp = ((uintptr_t) stack) + ALIGN_UP((size / 2), REGISTER_STACK_ALIGNMENT); \
     56                (c)->ar_pfs &= PFM_MASK; \
     57                (c)->sp = ((uintptr_t) stack) + ALIGN_UP((size / 2), STACK_ALIGNMENT) - SP_DELTA; \
     58        } while (0)
    5959
    6060/*
  • kernel/arch/mips32/include/context.h

    r43cd499 r14f8fd4  
    4242 * Put one item onto the stack to support get_stack_base() and align it up.
    4343 */
    44 #define SP_DELTA  (0 + ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT))
     44#define SP_DELTA  (ABI_STACK_FRAME + ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT))
    4545
    4646#ifndef __ASM__
  • kernel/arch/mips32/include/stack.h

    r43cd499 r14f8fd4  
    2727 */
    2828
    29 /** @addtogroup mips32 
     29/** @addtogroup mips32
    3030 * @{
    3131 */
     
    3636#define KERN_mips32_STACK_H_
    3737
    38 #define STACK_ITEM_SIZE         4
    39 #define STACK_ALIGNMENT         8
     38#define STACK_ITEM_SIZE  4
     39#define STACK_ALIGNMENT  8
     40#define ABI_STACK_FRAME  32
    4041
    4142#endif
  • kernel/arch/mips32/src/start.S

    r43cd499 r14f8fd4  
    241241        /* $a1 contains physical address of bootinfo_t */
    242242        jal arch_pre_main
    243         nop
     243        addiu $sp, -ABI_STACK_FRAME
    244244       
    245245        j main_bsp
     
    281281       
    282282        move $a1, $sp
     283        move $a0, $k0
    283284        jal exc_dispatch     /* exc_dispatch(excno, register_space) */
    284         move $a0, $k0
     285        addiu $sp, -ABI_STACK_FRAME
     286        addiu $sp, ABI_STACK_FRAME
    285287       
    286288        REGISTERS_LOAD $sp
     
    323325        sw $t0, ISTATE_OFFSET_T0($sp)  /* save the 5th argument on the stack */
    324326        sw $t1, ISTATE_OFFSET_T1($sp)  /* save the 6th argument on the stack */
     327       
    325328        jal syscall_handler
    326329        sw $v0, ISTATE_OFFSET_V0($sp)  /* save the syscall number on the stack */
     
    357360        move $sp, $k0
    358361       
     362        move $a0, $sp
    359363        jal tlb_refill
    360         move $a0, $sp
     364        addiu $sp, -ABI_STACK_FRAME
     365        addiu $sp, ABI_STACK_FRAME
    361366       
    362367        REGISTERS_LOAD $sp
     
    366371cache_error_handler:
    367372        KERNEL_STACK_TO_K0
    368         sub $k0, ISTATE_SOFT_SIZE 
     373        sub $k0, ISTATE_SOFT_SIZE
    369374        REGISTERS_STORE_AND_EXC_RESET $k0
    370375        sw $sp, ISTATE_OFFSET_SP($k0)
    371376        move $sp, $k0
    372377       
     378        move $a0, $sp
    373379        jal cache_error
    374         move $a0, $sp
     380        addiu $sp, -ABI_STACK_FRAME
     381        addiu $sp, ABI_STACK_FRAME
    375382       
    376383        REGISTERS_LOAD $sp
  • kernel/arch/mips64/include/context.h

    r43cd499 r14f8fd4  
    4242 * Put one item onto the stack to support get_stack_base() and align it up.
    4343 */
    44 #define SP_DELTA  (0 + ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT))
     44#define SP_DELTA  (ABI_STACK_FRAME + ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT))
    4545
    4646#ifndef __ASM__
  • kernel/arch/mips64/include/stack.h

    r43cd499 r14f8fd4  
    3838#define STACK_ITEM_SIZE  8
    3939#define STACK_ALIGNMENT  8
     40#define ABI_STACK_FRAME  64
    4041
    4142#endif
  • kernel/arch/mips64/src/start.S

    r43cd499 r14f8fd4  
    241241        /* $a1 contains physical address of bootinfo_t */
    242242        jal arch_pre_main
    243         nop
     243        addiu $sp, -ABI_STACK_FRAME
    244244       
    245245        j main_bsp
     
    281281       
    282282        move $a1, $sp
     283        move $a0, $k0
    283284        jal exc_dispatch     /* exc_dispatch(excno, register_space) */
    284         move $a0, $k0
     285        addiu $sp, -ABI_STACK_FRAME
     286        addiu $sp, ABI_STACK_FRAME
    285287       
    286288        REGISTERS_LOAD $sp
     
    323325        sw $t0, ISTATE_OFFSET_T0($sp)  /* save the 5th argument on the stack */
    324326        sw $t1, ISTATE_OFFSET_T1($sp)  /* save the 6th argument on the stack */
     327       
    325328        jal syscall_handler
    326329        sw $v0, ISTATE_OFFSET_V0($sp)  /* save the syscall number on the stack */
     
    357360        move $sp, $k0
    358361       
     362        move $a0, $sp
    359363        jal tlb_refill
    360         move $a0, $sp
     364        addiu $sp, -ABI_STACK_FRAME
     365        addiu $sp, ABI_STACK_FRAME
    361366       
    362367        REGISTERS_LOAD $sp
     
    366371cache_error_handler:
    367372        KERNEL_STACK_TO_K0
    368         sub $k0, ISTATE_SOFT_SIZE 
     373        sub $k0, ISTATE_SOFT_SIZE
    369374        REGISTERS_STORE_AND_EXC_RESET $k0
    370375        sw $sp, ISTATE_OFFSET_SP($k0)
    371376        move $sp, $k0
    372377       
     378        move $a0, $sp
    373379        jal cache_error
    374         move $a0, $sp
     380        addiu $sp, -ABI_STACK_FRAME
     381        addiu $sp, ABI_STACK_FRAME
    375382       
    376383        REGISTERS_LOAD $sp
  • kernel/arch/ppc32/src/ppc32.c

    r43cd499 r14f8fd4  
    173173                ofw_tree_walk_by_device_type("display", display_register, NULL);
    174174#endif
     175                /* Map OFW information into sysinfo */
     176                ofw_sysinfo_map();
    175177               
    176178                /* Initialize IRQ routing */
  • kernel/arch/sparc64/include/context.h

    r43cd499 r14f8fd4  
    2727 */
    2828
    29 /** @addtogroup sparc64 
     29/** @addtogroup sparc64
    3030 * @{
    3131 */
     
    4040#include <align.h>
    4141
    42 #define SP_DELTA        (STACK_WINDOW_SAVE_AREA_SIZE + STACK_ARG_SAVE_AREA_SIZE)
     42#define SP_DELTA  (STACK_WINDOW_SAVE_AREA_SIZE + STACK_ARG_SAVE_AREA_SIZE)
    4343
    44 #define context_set(c, _pc, stack, size)                        \
    45         (c)->pc = ((uintptr_t) _pc) - 8;                        \
    46         (c)->sp = ((uintptr_t) stack) + ALIGN_UP((size),        \
    47                 STACK_ALIGNMENT) - (STACK_BIAS + SP_DELTA);     \
    48         (c)->fp = -STACK_BIAS
    49        
     44#define context_set(c, _pc, stack, size) \
     45        do { \
     46                (c)->pc = ((uintptr_t) _pc) - 8; \
     47                (c)->sp = ((uintptr_t) stack) + ALIGN_UP((size), \
     48                    STACK_ALIGNMENT) - (STACK_BIAS + SP_DELTA); \
     49                (c)->fp = -STACK_BIAS; \
     50        } while (0)
    5051
    5152/*
  • kernel/arch/sparc64/src/sun4u/sparc64.c

    r43cd499 r14f8fd4  
    9494{
    9595        if (config.cpu_active == 1) {
     96                /* Map OFW information into sysinfo */
     97                ofw_sysinfo_map();
     98               
    9699                /*
    97100                 * We have 2^11 different interrupt vectors.
  • kernel/arch/sparc64/src/sun4v/sparc64.c

    r43cd499 r14f8fd4  
    9292{
    9393        if (config.cpu_active == 1) {
     94                /* Map OFW information into sysinfo */
     95                ofw_sysinfo_map();
     96               
    9497                /*
    9598                 * We have 2^11 different interrupt vectors.
  • kernel/genarch/include/ofw/ofw_tree.h

    r43cd499 r14f8fd4  
    6767
    6868extern void ofw_tree_init(ofw_tree_node_t *);
    69 extern void ofw_tree_print(void);
     69extern void ofw_sysinfo_map(void);
    7070
    7171extern const char *ofw_tree_node_name(const ofw_tree_node_t *);
  • kernel/genarch/src/ofw/ofw_tree.c

    r43cd499 r14f8fd4  
    3838#include <genarch/ofw/ofw_tree.h>
    3939#include <mm/slab.h>
     40#include <sysinfo/sysinfo.h>
    4041#include <memstr.h>
    4142#include <str.h>
     
    6566    const char *name)
    6667{
    67         size_t i;
    68        
    69         for (i = 0; i < node->properties; i++) {
     68        for (size_t i = 0; i < node->properties; i++) {
    7069                if (str_cmp(node->property[i].name, name) == 0)
    7170                        return &node->property[i];
     
    104103    const char *name)
    105104{
    106         ofw_tree_node_t *cur;
    107        
    108105        /*
    109106         * Try to find the disambigued name.
    110107         */
    111         for (cur = node->child; cur; cur = cur->peer) {
     108        for (ofw_tree_node_t *cur = node->child; cur; cur = cur->peer) {
    112109                if (str_cmp(cur->da_name, name) == 0)
    113110                        return cur;
     
    121118         * are not always fully-qualified.
    122119         */
    123         for (cur = node->child; cur; cur = cur->peer) {
     120        for (ofw_tree_node_t *cur = node->child; cur; cur = cur->peer) {
    124121                if (str_cmp(ofw_tree_node_name(cur), name) == 0)
    125122                        return cur;
     
    141138    const char *dtype)
    142139{
    143         ofw_tree_node_t *cur;
    144        
    145         for (cur = node->child; cur; cur = cur->peer) {
     140        for (ofw_tree_node_t *cur = node->child; cur; cur = cur->peer) {
    146141                ofw_tree_property_t *prop =
    147142                    ofw_tree_getprop(cur, "device_type");
     
    172167    phandle handle)
    173168{
    174         ofw_tree_node_t *cur;
    175        
    176         for (cur = root; cur; cur = cur->peer) {
     169        for (ofw_tree_node_t *cur = root; cur; cur = cur->peer) {
    177170                if (cur->node_handle == handle)
    178171                        return cur;
    179172               
    180173                if (cur->child) {
    181                         ofw_tree_node_t *node
    182                             = ofw_tree_find_node_by_handle(cur->child, handle);
     174                        ofw_tree_node_t *node =
     175                            ofw_tree_find_node_by_handle(cur->child, handle);
    183176                        if (node)
    184177                                return node;
     
    201194    const char *dtype)
    202195{
    203         ofw_tree_node_t *cur;
    204        
    205         for (cur = node->peer; cur; cur = cur->peer) {
     196        for (ofw_tree_node_t *cur = node->peer; cur; cur = cur->peer) {
    206197                ofw_tree_property_t *prop =
    207198                    ofw_tree_getprop(cur, "device_type");
     
    229220    const char *name)
    230221{
    231         ofw_tree_node_t *cur;
    232        
    233         for (cur = node->peer; cur; cur = cur->peer) {
    234                 ofw_tree_property_t *prop
    235                     = ofw_tree_getprop(cur, "name");
     222        for (ofw_tree_node_t *cur = node->peer; cur; cur = cur->peer) {
     223                ofw_tree_property_t *prop =
     224                    ofw_tree_getprop(cur, "name");
    236225               
    237226                if ((!prop) || (!prop->value))
     
    259248       
    260249        ofw_tree_node_t *node = ofw_root;
    261         size_t i;
    262250        size_t j;
    263251       
    264         for (i = 1; (i < str_size(path)) && (node); i = j + 1) {
     252        for (size_t i = 1; (i < str_size(path)) && (node); i = j + 1) {
    265253                for (j = i; (j < str_size(path)) && (path[j] != '/'); j++);
    266254               
     
    294282    const char *dtype, ofw_tree_walker_t walker, void *arg)
    295283{
    296         ofw_tree_node_t *cur;
    297        
    298         for (cur = node; cur; cur = cur->peer) {
     284        for (ofw_tree_node_t *cur = node; cur; cur = cur->peer) {
    299285                ofw_tree_property_t *prop =
    300286                    ofw_tree_getprop(cur, "device_type");
     
    334320}
    335321
    336 /** Print OpenFirmware device subtree rooted in a node.
     322/** Get OpenFirmware node properties.
     323 *
     324 * @param item    Sysinfo item (unused).
     325 * @param size    Size of the returned data.
     326 * @param dry_run Do not get the data, just calculate the size.
     327 * @param data    OpenFirmware node.
     328 *
     329 * @return Data containing a serialized dump of all node
     330 *         properties. If the return value is not NULL, it
     331 *         should be freed in the context of the sysinfo request.
     332 *
     333 */
     334static void *ofw_sysinfo_properties(struct sysinfo_item *item, size_t *size,
     335    bool dry_run, void *data)
     336{
     337        ofw_tree_node_t *node = (ofw_tree_node_t *) data;
     338       
     339        /* Compute serialized data size */
     340        *size = 0;
     341        for (size_t i = 0; i < node->properties; i++)
     342                *size += str_size(node->property[i].name) + 1 +
     343                    sizeof(node->property[i].size) + node->property[i].size;
     344       
     345        if (dry_run)
     346                return NULL;
     347       
     348        void *dump = malloc(*size, FRAME_ATOMIC);
     349        if (dump == NULL) {
     350                *size = 0;
     351                return NULL;
     352        }
     353       
     354        /* Serialize the data */
     355        size_t pos = 0;
     356        for (size_t i = 0; i < node->properties; i++) {
     357                /* Property name */
     358                str_cpy(dump + pos, *size - pos, node->property[i].name);
     359                pos += str_size(node->property[i].name) + 1;
     360               
     361                /* Value size */
     362                memcpy(dump + pos, &node->property[i].size,
     363                    sizeof(node->property[i].size));
     364                pos += sizeof(node->property[i].size);
     365               
     366                /* Value */
     367                memcpy(dump + pos, node->property[i].value,
     368                    node->property[i].size);
     369                pos += node->property[i].size;
     370        }
     371       
     372        return ((void *) dump);
     373}
     374
     375/** Map OpenFirmware device subtree rooted in a node into sysinfo.
    337376 *
    338377 * Child nodes are processed recursively and peer nodes are processed
     
    343382 *
    344383 */
    345 static void ofw_tree_node_print(ofw_tree_node_t *node, const char *path)
     384static void ofw_tree_node_sysinfo(ofw_tree_node_t *node, const char *path)
    346385{
    347386        char *cur_path = (char *) malloc(PATH_MAX_LEN, 0);
    348         ofw_tree_node_t *cur;
    349        
    350         for (cur = node; cur; cur = cur->peer) {
    351                 if ((cur->parent) && (path)) {
    352                         snprintf(cur_path, PATH_MAX_LEN, "%s/%s", path, cur->da_name);
    353                         printf("%s\n", cur_path);
    354                 } else {
    355                         snprintf(cur_path, PATH_MAX_LEN, "%s", cur->da_name);
    356                         printf("/\n");
    357                 }
     387       
     388        for (ofw_tree_node_t *cur = node; cur; cur = cur->peer) {
     389                if ((cur->parent) && (path))
     390                        snprintf(cur_path, PATH_MAX_LEN, "%s.%s", path, cur->da_name);
     391                else
     392                        snprintf(cur_path, PATH_MAX_LEN, "firmware.%s", cur->da_name);
     393               
     394                sysinfo_set_item_gen_data(cur_path, NULL, ofw_sysinfo_properties,
     395                    (void *) cur);
    358396               
    359397                if (cur->child)
    360                         ofw_tree_node_print(cur->child, cur_path);
     398                        ofw_tree_node_sysinfo(cur->child, cur_path);
    361399        }
    362400       
     
    364402}
    365403
    366 /** Print the structure of the OpenFirmware device tree. */
    367 void ofw_tree_print(void)
    368 {
    369         ofw_tree_node_print(ofw_root, NULL);
     404/** Map the OpenFirmware device tree into sysinfo. */
     405void ofw_sysinfo_map(void)
     406{
     407        ofw_tree_node_sysinfo(ofw_root, NULL);
    370408}
    371409
  • kernel/generic/include/context.h

    r43cd499 r14f8fd4  
    4141
    4242#define context_set_generic(ctx, _pc, stack, size) \
    43         (ctx)->pc = (uintptr_t) (_pc); \
    44         (ctx)->sp = ((uintptr_t) (stack)) + (size) - SP_DELTA;
     43        do { \
     44                (ctx)->pc = (uintptr_t) (_pc); \
     45                (ctx)->sp = ((uintptr_t) (stack)) + (size) - SP_DELTA; \
     46        } while (0)
    4547
    4648extern int context_save_arch(context_t *ctx) __attribute__((returns_twice));
  • kernel/generic/include/sysinfo/sysinfo.h

    r43cd499 r14f8fd4  
    11/*
    22 * Copyright (c) 2006 Jakub Vana
     3 * Copyright (c) 2012 Martin Decky
    34 * All rights reserved.
    45 *
     
    5455struct sysinfo_item;
    5556
    56 /** Gerated numeric value function */
    57 typedef sysarg_t (*sysinfo_fn_val_t)(struct sysinfo_item *);
     57/** Generated numeric value function */
     58typedef sysarg_t (*sysinfo_fn_val_t)(struct sysinfo_item *, void *);
     59
     60/** Sysinfo generated numberic value data
     61 *
     62 */
     63typedef struct {
     64        sysinfo_fn_val_t fn;  /**< Generated value function */
     65        void *data;           /**< Private data */
     66} sysinfo_gen_val_data_t;
    5867
    5968/** Generated binary data function */
    60 typedef void *(*sysinfo_fn_data_t)(struct sysinfo_item *, size_t *, bool);
     69typedef void *(*sysinfo_fn_data_t)(struct sysinfo_item *, size_t *, bool,
     70    void *);
     71
     72/** Sysinfo generated binary data data
     73 *
     74 */
     75typedef struct {
     76        sysinfo_fn_data_t fn;  /**< Generated binary data function */
     77        void *data;            /**< Private data */
     78} sysinfo_gen_data_data_t;
    6179
    6280/** Sysinfo item binary data
     
    7290 */
    7391typedef union {
    74         sysarg_t val;               /**< Constant numberic value */
    75         sysinfo_fn_val_t fn_val;    /**< Generated numeric value function */
    76         sysinfo_fn_data_t fn_data;  /**< Generated binary data function */
    77         sysinfo_data_t data;        /**< Constant binary data */
     92        sysarg_t val;                      /**< Constant numberic value */
     93        sysinfo_data_t data;               /**< Constant binary data */
     94        sysinfo_gen_val_data_t gen_val;    /**< Generated numeric value function */
     95        sysinfo_gen_data_data_t gen_data;  /**< Generated binary data function */
    7896} sysinfo_item_val_t;
    7997
     
    95113
    96114/** Generated subtree function */
    97 typedef sysinfo_return_t (*sysinfo_fn_subtree_t)(const char *, bool);
     115typedef sysinfo_return_t (*sysinfo_fn_subtree_t)(const char *, bool, void *);
     116
     117/** Sysinfo generated subtree data
     118 *
     119 */
     120typedef struct {
     121        sysinfo_fn_subtree_t fn;  /**< Generated subtree function */
     122        void *data;               /**< Private data */
     123} sysinfo_gen_subtree_data_t;
    98124
    99125/** Sysinfo subtree (union)
     
    101127 */
    102128typedef union {
    103         struct sysinfo_item *table;     /**< Fixed subtree (list of subitems) */
    104         sysinfo_fn_subtree_t get_data;  /**< Generated subtree function */
     129        struct sysinfo_item *table;            /**< Fixed subtree (list of subitems) */
     130        sysinfo_gen_subtree_data_t generator;  /**< Generated subtree */
    105131} sysinfo_subtree_t;
    106132
     
    123149extern void sysinfo_set_item_data(const char *, sysinfo_item_t **, void *,
    124150    size_t);
    125 extern void sysinfo_set_item_fn_val(const char *, sysinfo_item_t **,
    126     sysinfo_fn_val_t);
    127 extern void sysinfo_set_item_fn_data(const char *, sysinfo_item_t **,
    128     sysinfo_fn_data_t);
     151extern void sysinfo_set_item_gen_val(const char *, sysinfo_item_t **,
     152    sysinfo_fn_val_t, void *);
     153extern void sysinfo_set_item_gen_data(const char *, sysinfo_item_t **,
     154    sysinfo_fn_data_t, void *);
    129155extern void sysinfo_set_item_undefined(const char *, sysinfo_item_t **);
    130156
    131157extern void sysinfo_set_subtree_fn(const char *, sysinfo_item_t **,
    132     sysinfo_fn_subtree_t);
     158    sysinfo_fn_subtree_t, void *);
    133159
    134160extern void sysinfo_init(void);
    135161extern void sysinfo_dump(sysinfo_item_t *);
    136162
     163extern sysarg_t sys_sysinfo_get_keys_size(void *, size_t, void *);
     164extern sysarg_t sys_sysinfo_get_keys(void *, size_t, void *, size_t, size_t *);
    137165extern sysarg_t sys_sysinfo_get_val_type(void *, size_t);
    138166extern sysarg_t sys_sysinfo_get_value(void *, size_t, void *);
  • kernel/generic/src/main/main.c

    r43cd499 r14f8fd4  
    221221        frame_init();
    222222        slab_cache_init();
    223         ra_init();     
     223        ra_init();
    224224        sysinfo_init();
    225225        btree_init();
  • kernel/generic/src/mm/frame.c

    r43cd499 r14f8fd4  
    12701270/** Adjust bounds of physical memory region according to low/high memory split.
    12711271 *
    1272  * @param low[in]       If true, the adujstment is performed to make the region
     1272 * @param low[in]       If true, the adjustment is performed to make the region
    12731273 *                      fit in the low memory. Otherwise the adjustment is
    12741274 *                      performed to make the region fit in the high memory.
     
    12821282bool frame_adjust_zone_bounds(bool low, uintptr_t *basep, size_t *sizep)
    12831283{
    1284         // FIXME: This might lead to overflow if the identity_size is too big
    1285         // but it is necessary if the PA identity_base > identity_size
    1286         const uintptr_t limit =
    1287             KA2PA(config.identity_base) + config.identity_size;
     1284        uintptr_t limit = KA2PA(config.identity_base) + config.identity_size;
    12881285
    12891286        if (low) {
  • kernel/generic/src/syscall/syscall.c

    r43cd499 r14f8fd4  
    184184       
    185185        /* Sysinfo syscalls. */
     186        (syshandler_t) sys_sysinfo_get_keys_size,
     187        (syshandler_t) sys_sysinfo_get_keys,
    186188        (syshandler_t) sys_sysinfo_get_val_type,
    187189        (syshandler_t) sys_sysinfo_get_value,
  • kernel/generic/src/sysinfo/stats.c

    r43cd499 r14f8fd4  
    8383 *
    8484 * @param item Sysinfo item (unused).
     85 * @param data Unused.
    8586 *
    8687 * @return System uptime (in secords).
    8788 *
    8889 */
    89 static sysarg_t get_stats_uptime(struct sysinfo_item *item)
     90static sysarg_t get_stats_uptime(struct sysinfo_item *item, void *data)
    9091{
    9192        /* This doesn't have to be very accurate */
     
    9899 * @param size    Size of the returned data.
    99100 * @param dry_run Do not get the data, just calculate the size.
     101 * @param data    Unused.
    100102 *
    101103 * @return Data containing several stats_cpu_t structures.
     
    104106 */
    105107static void *get_stats_cpus(struct sysinfo_item *item, size_t *size,
    106     bool dry_run)
     108    bool dry_run, void *data)
    107109{
    108110        *size = sizeof(stats_cpu_t) * config.cpu_count;
     
    249251        ASSERT(interrupts_disabled());
    250252        ASSERT(irq_spinlock_locked(&task->lock));
    251 
     253       
    252254        stats_task->task_id = task->taskid;
    253255        str_cpy(stats_task->name, TASK_NAME_BUFLEN, task->name);
     
    293295 * @param size    Size of the returned data.
    294296 * @param dry_run Do not get the data, just calculate the size.
     297 * @param data    Unused.
    295298 *
    296299 * @return Data containing several stats_task_t structures.
     
    299302 */
    300303static void *get_stats_tasks(struct sysinfo_item *item, size_t *size,
    301     bool dry_run)
     304    bool dry_run, void *data)
    302305{
    303306        /* Messing with task structures, avoid deadlock */
     
    350353        ASSERT(interrupts_disabled());
    351354        ASSERT(irq_spinlock_locked(&thread->lock));
    352 
     355       
    353356        stats_thread->thread_id = thread->tid;
    354357        stats_thread->task_id = thread->task->taskid;
     
    398401 * @param size    Size of the returned data.
    399402 * @param dry_run Do not get the data, just calculate the size.
     403 * @param data    Unused.
    400404 *
    401405 * @return Data containing several stats_task_t structures.
     
    404408 */
    405409static void *get_stats_threads(struct sysinfo_item *item, size_t *size,
    406     bool dry_run)
     410    bool dry_run, void *data)
    407411{
    408412        /* Messing with threads structures, avoid deadlock */
     
    451455 * @param name    Task ID (string-encoded number).
    452456 * @param dry_run Do not get the data, just calculate the size.
     457 * @param data    Unused.
    453458 *
    454459 * @return Sysinfo return holder. The type of the returned
     
    460465 *
    461466 */
    462 static sysinfo_return_t get_stats_task(const char *name, bool dry_run)
     467static sysinfo_return_t get_stats_task(const char *name, bool dry_run,
     468    void *data)
    463469{
    464470        /* Initially no return value */
     
    520526 * @param name    Thread ID (string-encoded number).
    521527 * @param dry_run Do not get the data, just calculate the size.
     528 * @param data    Unused.
    522529 *
    523530 * @return Sysinfo return holder. The type of the returned
     
    529536 *
    530537 */
    531 static sysinfo_return_t get_stats_thread(const char *name, bool dry_run)
     538static sysinfo_return_t get_stats_thread(const char *name, bool dry_run,
     539    void *data)
    532540{
    533541        /* Initially no return value */
     
    586594 * @param size    Size of the returned data.
    587595 * @param dry_run Do not get the data, just calculate the size.
     596 * @param data    Unused.
    588597 *
    589598 * @return Data containing several stats_exc_t structures.
     
    592601 */
    593602static void *get_stats_exceptions(struct sysinfo_item *item, size_t *size,
    594     bool dry_run)
     603    bool dry_run, void *data)
    595604{
    596605        *size = sizeof(stats_exc_t) * IVT_ITEMS;
     
    634643 * @param name    Exception number (string-encoded number).
    635644 * @param dry_run Do not get the data, just calculate the size.
     645 * @param data    Unused.
    636646 *
    637647 * @return Sysinfo return holder. The type of the returned
     
    643653 *
    644654 */
    645 static sysinfo_return_t get_stats_exception(const char *name, bool dry_run)
     655static sysinfo_return_t get_stats_exception(const char *name, bool dry_run,
     656    void *data)
    646657{
    647658        /* Initially no return value */
     
    705716 * @param size    Size of the returned data.
    706717 * @param dry_run Do not get the data, just calculate the size.
     718 * @param data    Unused.
    707719 *
    708720 * @return Data containing stats_physmem_t.
     
    711723 */
    712724static void *get_stats_physmem(struct sysinfo_item *item, size_t *size,
    713     bool dry_run)
     725    bool dry_run, void *data)
    714726{
    715727        *size = sizeof(stats_physmem_t);
     
    735747 * @param size    Size of the returned data.
    736748 * @param dry_run Do not get the data, just calculate the size.
     749 * @param data    Unused.
    737750 *
    738751 * @return Data several load_t values.
     
    741754 */
    742755static void *get_stats_load(struct sysinfo_item *item, size_t *size,
    743     bool dry_run)
     756    bool dry_run, void *data)
    744757{
    745758        *size = sizeof(load_t) * LOAD_STEPS;
     
    810823        mutex_initialize(&load_lock, MUTEX_PASSIVE);
    811824       
    812         sysinfo_set_item_fn_val("system.uptime", NULL, get_stats_uptime);
    813         sysinfo_set_item_fn_data("system.cpus", NULL, get_stats_cpus);
    814         sysinfo_set_item_fn_data("system.physmem", NULL, get_stats_physmem);
    815         sysinfo_set_item_fn_data("system.load", NULL, get_stats_load);
    816         sysinfo_set_item_fn_data("system.tasks", NULL, get_stats_tasks);
    817         sysinfo_set_item_fn_data("system.threads", NULL, get_stats_threads);
    818         sysinfo_set_item_fn_data("system.exceptions", NULL, get_stats_exceptions);
    819         sysinfo_set_subtree_fn("system.tasks", NULL, get_stats_task);
    820         sysinfo_set_subtree_fn("system.threads", NULL, get_stats_thread);
    821         sysinfo_set_subtree_fn("system.exceptions", NULL, get_stats_exception);
     825        sysinfo_set_item_gen_val("system.uptime", NULL, get_stats_uptime, NULL);
     826        sysinfo_set_item_gen_data("system.cpus", NULL, get_stats_cpus, NULL);
     827        sysinfo_set_item_gen_data("system.physmem", NULL, get_stats_physmem, NULL);
     828        sysinfo_set_item_gen_data("system.load", NULL, get_stats_load, NULL);
     829        sysinfo_set_item_gen_data("system.tasks", NULL, get_stats_tasks, NULL);
     830        sysinfo_set_item_gen_data("system.threads", NULL, get_stats_threads, NULL);
     831        sysinfo_set_item_gen_data("system.exceptions", NULL, get_stats_exceptions, NULL);
     832        sysinfo_set_subtree_fn("system.tasks", NULL, get_stats_task, NULL);
     833        sysinfo_set_subtree_fn("system.threads", NULL, get_stats_thread, NULL);
     834        sysinfo_set_subtree_fn("system.exceptions", NULL, get_stats_exception, NULL);
    822835}
    823836
  • kernel/generic/src/sysinfo/sysinfo.c

    r43cd499 r14f8fd4  
    11/*
    22 * Copyright (c) 2006 Jakub Vana
     3 * Copyright (c) 2012 Martin Decky
    34 * All rights reserved.
    45 *
     
    99100            sizeof(sysinfo_item_t), 0, sysinfo_item_constructor,
    100101            sysinfo_item_destructor, SLAB_CACHE_MAGDEFERRED);
    101 
     102       
    102103        mutex_initialize(&sysinfo_lock, MUTEX_ACTIVE);
    103104}
     
    110111 * @param subtree Current sysinfo (sub)tree root item.
    111112 * @param ret     If the return value is NULL, this argument
    112  *                can be either also NULL (i.e. no item was
     113 *                can be set either to NULL (i.e. no item was
    113114 *                found and no data was generated) or the
    114115 *                original pointer is used to store the value
     
    125126{
    126127        ASSERT(subtree != NULL);
    127         ASSERT(ret != NULL);
    128128       
    129129        sysinfo_item_t *cur = subtree;
     
    151151                        case SYSINFO_SUBTREE_FUNCTION:
    152152                                /* Get generated data */
    153                                 **ret = cur->subtree.get_data(name + i + 1, dry_run);
     153                                if (ret != NULL)
     154                                        **ret = cur->subtree.generator.fn(name + i + 1,
     155                                            dry_run, cur->subtree.generator.data);
     156                               
    154157                                return NULL;
    155158                        default:
    156159                                /* Not found, no data generated */
    157                                 *ret = NULL;
     160                                if (ret != NULL)
     161                                        *ret = NULL;
     162                               
    158163                                return NULL;
    159164                        }
     
    164169       
    165170        /* Not found, no data generated */
    166         *ret = NULL;
     171        if (ret != NULL)
     172                *ret = NULL;
     173       
    167174        return NULL;
    168175}
     
    352359 *             a new root item (NULL for global sysinfo root).
    353360 * @param fn   Numeric value generator function.
    354  *
    355  */
    356 void sysinfo_set_item_fn_val(const char *name, sysinfo_item_t **root,
    357     sysinfo_fn_val_t fn)
     361 * @param data Private data.
     362 *
     363 */
     364void sysinfo_set_item_gen_val(const char *name, sysinfo_item_t **root,
     365    sysinfo_fn_val_t fn, void *data)
    358366{
    359367        /* Protect sysinfo tree consistency */
     
    366374        if (item != NULL) {
    367375                item->val_type = SYSINFO_VAL_FUNCTION_VAL;
    368                 item->val.fn_val = fn;
     376                item->val.gen_val.fn = fn;
     377                item->val.gen_val.data = data;
    369378        }
    370379       
     
    383392 *             a new root item (NULL for global sysinfo root).
    384393 * @param fn   Binary data generator function.
    385  *
    386  */
    387 void sysinfo_set_item_fn_data(const char *name, sysinfo_item_t **root,
    388     sysinfo_fn_data_t fn)
     394 * @param data Private data.
     395 *
     396 */
     397void sysinfo_set_item_gen_data(const char *name, sysinfo_item_t **root,
     398    sysinfo_fn_data_t fn, void *data)
    389399{
    390400        /* Protect sysinfo tree consistency */
     
    397407        if (item != NULL) {
    398408                item->val_type = SYSINFO_VAL_FUNCTION_DATA;
    399                 item->val.fn_data = fn;
     409                item->val.gen_data.fn = fn;
     410                item->val.gen_data.data = data;
    400411        }
    401412       
     
    431442 *             a new root item (NULL for global sysinfo root).
    432443 * @param fn   Subtree generator function.
     444 * @param data Private data to be passed to the generator.
    433445 *
    434446 */
    435447void sysinfo_set_subtree_fn(const char *name, sysinfo_item_t **root,
    436     sysinfo_fn_subtree_t fn)
     448    sysinfo_fn_subtree_t fn, void *data)
    437449{
    438450        /* Protect sysinfo tree consistency */
     
    448460        if ((item != NULL) && (item->subtree_type != SYSINFO_SUBTREE_TABLE)) {
    449461                item->subtree_type = SYSINFO_SUBTREE_FUNCTION;
    450                 item->subtree.get_data = fn;
     462                item->subtree.generator.fn = fn;
     463                item->subtree.generator.data = data;
    451464        }
    452465       
     
    456469/** Sysinfo dump indentation helper routine
    457470 *
    458  * @param depth Number of indentation characters to print.
    459  *
    460  */
    461 NO_TRACE static void sysinfo_indent(unsigned int depth)
    462 {
    463         unsigned int i;
    464         for (i = 0; i < depth; i++)
    465                 printf("  ");
     471 * @param depth Number of spaces to print.
     472 *
     473 */
     474NO_TRACE static void sysinfo_indent(size_t spaces)
     475{
     476        for (size_t i = 0; i < spaces; i++)
     477                printf(" ");
    466478}
    467479
     
    470482 * Should be called with sysinfo_lock held.
    471483 *
    472  * @param root  Root item of the current (sub)tree.
    473  * @param depth Current depth in the sysinfo tree.
    474  *
    475  */
    476 NO_TRACE static void sysinfo_dump_internal(sysinfo_item_t *root, unsigned int depth)
    477 {
    478         sysinfo_item_t *cur = root;
    479        
     484 * @param root   Root item of the current (sub)tree.
     485 * @param spaces Current indentation level.
     486 *
     487 */
     488NO_TRACE static void sysinfo_dump_internal(sysinfo_item_t *root, size_t spaces)
     489{
    480490        /* Walk all siblings */
    481         while (cur != NULL) {
    482                 sysinfo_indent(depth);
     491        for (sysinfo_item_t *cur = root; cur; cur = cur->next) {
     492                size_t length;
     493               
     494                if (spaces == 0) {
     495                        printf("%s", cur->name);
     496                        length = str_length(cur->name);
     497                } else {
     498                        sysinfo_indent(spaces);
     499                        printf(".%s", cur->name);
     500                        length = str_length(cur->name) + 1;
     501                }
    483502               
    484503                sysarg_t val;
     
    488507                switch (cur->val_type) {
    489508                case SYSINFO_VAL_UNDEFINED:
    490                         printf("+ %s\n", cur->name);
     509                        printf(" [undefined]\n");
    491510                        break;
    492511                case SYSINFO_VAL_VAL:
    493                         printf("+ %s -> %" PRIun" (%#" PRIxn ")\n", cur->name,
    494                             cur->val.val, cur->val.val);
     512                        printf(" -> %" PRIun" (%#" PRIxn ")\n", cur->val.val,
     513                            cur->val.val);
    495514                        break;
    496515                case SYSINFO_VAL_DATA:
    497                         printf("+ %s (%zu bytes)\n", cur->name,
    498                             cur->val.data.size);
     516                        printf(" (%zu bytes)\n", cur->val.data.size);
    499517                        break;
    500518                case SYSINFO_VAL_FUNCTION_VAL:
    501                         val = cur->val.fn_val(cur);
    502                         printf("+ %s -> %" PRIun" (%#" PRIxn ") [generated]\n",
    503                             cur->name, val, val);
     519                        val = cur->val.gen_val.fn(cur, cur->val.gen_val.data);
     520                        printf(" -> %" PRIun" (%#" PRIxn ") [generated]\n", val,
     521                            val);
    504522                        break;
    505523                case SYSINFO_VAL_FUNCTION_DATA:
    506524                        /* N.B.: No data was actually returned (only a dry run) */
    507                         (void) cur->val.fn_data(cur, &size, true);
    508                         printf("+ %s (%zu bytes) [generated]\n", cur->name,
    509                             size);
     525                        (void) cur->val.gen_data.fn(cur, &size, true,
     526                            cur->val.gen_data.data);
     527                        printf(" (%zu bytes) [generated]\n", size);
    510528                        break;
    511529                default:
     
    518536                        break;
    519537                case SYSINFO_SUBTREE_TABLE:
    520                         sysinfo_dump_internal(cur->subtree.table, depth + 1);
     538                        sysinfo_dump_internal(cur->subtree.table, spaces + length);
    521539                        break;
    522540                case SYSINFO_SUBTREE_FUNCTION:
    523                         sysinfo_indent(depth + 1);
    524                         printf("+ [generated subtree]\n");
     541                        sysinfo_indent(spaces + length);
     542                        printf("<generated subtree>\n");
    525543                        break;
    526544                default:
    527                         sysinfo_indent(depth + 1);
    528                         printf("+ [unknown subtree]\n");
     545                        sysinfo_indent(spaces + length);
     546                        printf("<unknown subtree>\n");
    529547                }
    530                
    531                 cur = cur->next;
    532548        }
    533549}
     
    594610                        break;
    595611                case SYSINFO_VAL_FUNCTION_VAL:
    596                         ret.val = item->val.fn_val(item);
     612                        ret.val = item->val.gen_val.fn(item, item->val.gen_val.data);
    597613                        break;
    598614                case SYSINFO_VAL_FUNCTION_DATA:
    599                         ret.data.data = item->val.fn_data(item, &ret.data.size,
    600                             dry_run);
     615                        ret.data.data = item->val.gen_data.fn(item, &ret.data.size,
     616                            dry_run, item->val.gen_data.data);
    601617                        break;
    602618                }
     
    635651        ASSERT(path);
    636652       
    637         if ((copy_from_uspace(path, ptr, size + 1) == 0)
    638             && (path[size] == 0)) {
     653        if ((copy_from_uspace(path, ptr, size + 1) == 0) &&
     654            (path[size] == 0)) {
    639655                /*
    640656                 * Prevent other functions from messing with sysinfo while we
     
    645661                mutex_unlock(&sysinfo_lock);
    646662        }
     663       
    647664        free(path);
    648665        return ret;
     666}
     667
     668/** Return sysinfo keys determined by name
     669 *
     670 * Should be called with sysinfo_lock held.
     671 *
     672 * @param name    Sysinfo path.
     673 * @param root    Root item of the sysinfo (sub)tree.
     674 *                If it is NULL then consider the global
     675 *                sysinfo tree.
     676 * @param dry_run Do not actually get any generated
     677 *                binary data, just calculate the size.
     678 *
     679 * @return Item value (constant or generated).
     680 *
     681 */
     682NO_TRACE static sysinfo_return_t sysinfo_get_keys(const char *name,
     683    sysinfo_item_t **root, bool dry_run)
     684{
     685        if (root == NULL)
     686                root = &global_root;
     687       
     688        sysinfo_item_t *subtree = NULL;
     689       
     690        if (name[0] != 0) {
     691                /* Try to find the item */
     692                sysinfo_item_t *item =
     693                    sysinfo_find_item(name, *root, NULL, dry_run);
     694                if ((item != NULL) &&
     695                    (item->subtree_type == SYSINFO_SUBTREE_TABLE))
     696                        subtree = item->subtree.table;
     697        } else
     698                subtree = *root;
     699       
     700        sysinfo_return_t ret;
     701       
     702        if (subtree != NULL) {
     703                /*
     704                 * Calculate the size of subkeys.
     705                 */
     706                size_t size = 0;
     707                for (sysinfo_item_t *cur = subtree; cur; cur = cur->next)
     708                        size += str_size(cur->name) + 1;
     709               
     710                if (dry_run) {
     711                        ret.tag = SYSINFO_VAL_DATA;
     712                        ret.data.data = NULL;
     713                        ret.data.size = size;
     714                } else {
     715                        /* Allocate buffer for subkeys */
     716                        char *names = (char *) malloc(size, FRAME_ATOMIC);
     717                        if (names == NULL)
     718                                return ret;
     719                       
     720                        size_t pos = 0;
     721                        for (sysinfo_item_t *cur = subtree; cur; cur = cur->next) {
     722                                str_cpy(names + pos, size - pos, cur->name);
     723                                pos += str_size(cur->name) + 1;
     724                        }
     725                       
     726                        /* Correct return value */
     727                        ret.tag = SYSINFO_VAL_DATA;
     728                        ret.data.data = (void *) names;
     729                        ret.data.size = size;
     730                }
     731        } else {
     732                /* No item in the fixed sysinfo tree */
     733                ret.tag = SYSINFO_VAL_UNDEFINED;
     734        }
     735       
     736        return ret;
     737}
     738
     739/** Return sysinfo keys determined by name from user space
     740 *
     741 * The path string passed from the user space has to be properly
     742 * null-terminated (the last passed character must be null).
     743 *
     744 * @param ptr     Sysinfo path in the user address space.
     745 * @param size    Size of the path string.
     746 * @param dry_run Do not actually get any generated
     747 *                binary data, just calculate the size.
     748 *
     749 */
     750NO_TRACE static sysinfo_return_t sysinfo_get_keys_uspace(void *ptr, size_t size,
     751    bool dry_run)
     752{
     753        sysinfo_return_t ret;
     754        ret.tag = SYSINFO_VAL_UNDEFINED;
     755       
     756        if (size > SYSINFO_MAX_PATH)
     757                return ret;
     758       
     759        char *path = (char *) malloc(size + 1, 0);
     760        ASSERT(path);
     761       
     762        if ((copy_from_uspace(path, ptr, size + 1) == 0) &&
     763            (path[size] == 0)) {
     764                /*
     765                 * Prevent other functions from messing with sysinfo while we
     766                 * are reading it.
     767                 */
     768                mutex_lock(&sysinfo_lock);
     769                ret = sysinfo_get_keys(path, NULL, dry_run);
     770                mutex_unlock(&sysinfo_lock);
     771        }
     772       
     773        free(path);
     774        return ret;
     775}
     776
     777/** Get the sysinfo keys size (syscall)
     778 *
     779 * The path string passed from the user space has
     780 * to be properly null-terminated (the last passed
     781 * character must be null).
     782 *
     783 * @param path_ptr  Sysinfo path in the user address space.
     784 * @param path_size Size of the path string.
     785 * @param size_ptr  User space pointer where to store the
     786 *                  keys size.
     787 *
     788 * @return Error code (EOK in case of no error).
     789 *
     790 */
     791sysarg_t sys_sysinfo_get_keys_size(void *path_ptr, size_t path_size,
     792    void *size_ptr)
     793{
     794        int rc;
     795       
     796        /*
     797         * Get the keys.
     798         *
     799         * N.B.: There is no need to free any potential keys
     800         * since we request a dry run.
     801         */
     802        sysinfo_return_t ret =
     803            sysinfo_get_keys_uspace(path_ptr, path_size, true);
     804       
     805        /* Check return data tag */
     806        if (ret.tag == SYSINFO_VAL_DATA)
     807                rc = copy_to_uspace(size_ptr, &ret.data.size,
     808                    sizeof(ret.data.size));
     809        else
     810                rc = EINVAL;
     811       
     812        return (sysarg_t) rc;
     813}
     814
     815/** Get the sysinfo keys (syscall)
     816 *
     817 * The path string passed from the user space has
     818 * to be properly null-terminated (the last passed
     819 * character must be null).
     820 *
     821 * If the user space buffer size does not equal
     822 * the actual size of the returned data, the data
     823 * is truncated.
     824 *
     825 * The actual size of data returned is stored to
     826 * size_ptr.
     827 *
     828 * @param path_ptr    Sysinfo path in the user address space.
     829 * @param path_size   Size of the path string.
     830 * @param buffer_ptr  User space pointer to the buffer where
     831 *                    to store the binary data.
     832 * @param buffer_size User space buffer size.
     833 * @param size_ptr    User space pointer where to store the
     834 *                    binary data size.
     835 *
     836 * @return Error code (EOK in case of no error).
     837 *
     838 */
     839sysarg_t sys_sysinfo_get_keys(void *path_ptr, size_t path_size,
     840    void *buffer_ptr, size_t buffer_size, size_t *size_ptr)
     841{
     842        int rc;
     843       
     844        /* Get the keys */
     845        sysinfo_return_t ret = sysinfo_get_keys_uspace(path_ptr, path_size,
     846            false);
     847       
     848        /* Check return data tag */
     849        if (ret.tag == SYSINFO_VAL_DATA) {
     850                size_t size = min(ret.data.size, buffer_size);
     851                rc = copy_to_uspace(buffer_ptr, ret.data.data, size);
     852                if (rc == EOK)
     853                        rc = copy_to_uspace(size_ptr, &size, sizeof(size));
     854               
     855                free(ret.data.data);
     856        } else
     857                rc = EINVAL;
     858       
     859        return (sysarg_t) rc;
    649860}
    650861
     
    672883       
    673884        /*
    674          * Map generated value types to constant types (user space does not care
    675          * whether the value is constant or generated).
     885         * Map generated value types to constant types (user space does
     886         * not care whether the value is constant or generated).
    676887         */
    677888        if (ret.tag == SYSINFO_VAL_FUNCTION_VAL)
     
    701912{
    702913        int rc;
    703 
     914       
    704915        /*
    705916         * Get the item.
    706917         *
    707          * N.B.: There is no need to free any potential generated binary data
    708          * since we request a dry run.
     918         * N.B.: There is no need to free any potential generated binary
     919         * data since we request a dry run.
    709920         */
    710921        sysinfo_return_t ret = sysinfo_get_item_uspace(path_ptr, path_size, true);
     
    741952         * Get the item.
    742953         *
    743          * N.B.: There is no need to free any potential generated binary data
    744          * since we request a dry run.
     954         * N.B.: There is no need to free any potential generated binary
     955         * data since we request a dry run.
    745956         */
    746957        sysinfo_return_t ret = sysinfo_get_item_uspace(path_ptr, path_size, true);
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