#include <asm/mman.h>
#include <sys/mman.h>
-static unsigned long
-get_pagesize()
+unsigned long
+get_pagesize(void)
{
static unsigned long pagesize;
return pagesize;
}
-int
-sys_brk(struct tcb *tcp)
+SYS_FUNC(brk)
{
- if (entering(tcp)) {
- tprintf("%#lx", tcp->u_arg[0]);
- }
- return RVAL_HEX;
+ printaddr(tcp->u_arg[0]);
+
+ return RVAL_DECODED | RVAL_HEX;
}
#include "xlat/mmap_prot.h"
#include "xlat/mmap_flags.h"
-static int
+static void
print_mmap(struct tcb *tcp, long *u_arg, unsigned long long offset)
{
- if (entering(tcp)) {
- /* addr */
- if (!u_arg[0])
- tprints("NULL, ");
- else
- tprintf("%#lx, ", u_arg[0]);
- /* len */
- tprintf("%lu, ", u_arg[1]);
- /* prot */
- printflags(mmap_prot, u_arg[2], "PROT_???");
- tprints(", ");
- /* flags */
+ const unsigned long addr = u_arg[0];
+ const unsigned long len = u_arg[1];
+ const unsigned long prot = u_arg[2];
+ const unsigned long flags = u_arg[3];
+ const int fd = u_arg[4];
+
+ printaddr(addr);
+ tprintf(", %lu, ", len);
+ printflags_long(mmap_prot, prot, "PROT_???");
+ tprints(", ");
#ifdef MAP_TYPE
- printxval(mmap_flags, u_arg[3] & MAP_TYPE, "MAP_???");
- addflags(mmap_flags, u_arg[3] & ~MAP_TYPE);
+ printxval_long(mmap_flags, flags & MAP_TYPE, "MAP_???");
+ addflags(mmap_flags, flags & ~MAP_TYPE);
#else
- printflags(mmap_flags, u_arg[3], "MAP_???");
+ printflags_long(mmap_flags, flags, "MAP_???");
#endif
- tprints(", ");
- /* fd */
- printfd(tcp, u_arg[4]);
- /* offset */
- tprintf(", %#llx", offset);
- }
- return RVAL_HEX;
+ tprints(", ");
+ printfd(tcp, fd);
+ tprintf(", %#llx", offset);
}
/* Syscall name<->function correspondence is messed up on many arches.
* Confused? Me too!
*/
+#if defined AARCH64 || defined ARM \
+ || defined I386 || defined X86_64 || defined X32 \
+ || defined M68K \
+ || defined S390 || defined S390X
/* Params are pointed to by u_arg[0], offset is in bytes */
-int
-sys_old_mmap(struct tcb *tcp)
+SYS_FUNC(old_mmap)
{
long u_arg[6];
-#if defined(IA64)
- /*
- * IA64 processes never call this routine, they only use the
- * new 'sys_mmap' interface. Only IA32 processes come here.
- */
- int i;
- unsigned narrow_arg[6];
- if (umoven(tcp, tcp->u_arg[0], sizeof(narrow_arg), (char *) narrow_arg) == -1)
- return 0;
+# if defined AARCH64 || defined X86_64
+ /* We are here only in a 32-bit personality. */
+ unsigned int narrow_arg[6];
+ if (umove_or_printaddr(tcp, tcp->u_arg[0], &narrow_arg))
+ return RVAL_DECODED | RVAL_HEX;
+ unsigned int i;
for (i = 0; i < 6; i++)
- u_arg[i] = (unsigned long) narrow_arg[i];
-#elif defined(X86_64)
- /* We are here only in personality 1 (i386) */
- int i;
- unsigned narrow_arg[6];
- if (umoven(tcp, tcp->u_arg[0], sizeof(narrow_arg), (char *) narrow_arg) == -1)
- return 0;
- for (i = 0; i < 6; ++i)
- u_arg[i] = (unsigned long) narrow_arg[i];
-#else
- if (umoven(tcp, tcp->u_arg[0], sizeof(u_arg), (char *) u_arg) == -1)
- return 0;
-#endif
- return print_mmap(tcp, u_arg, (unsigned long) u_arg[5]);
+ u_arg[i] = narrow_arg[i];
+# else
+ if (umove_or_printaddr(tcp, tcp->u_arg[0], &u_arg))
+ return RVAL_DECODED | RVAL_HEX;
+# endif
+ print_mmap(tcp, u_arg, (unsigned long) u_arg[5]);
+
+ return RVAL_DECODED | RVAL_HEX;
}
+#endif /* old_mmap architectures */
#if defined(S390)
/* Params are pointed to by u_arg[0], offset is in pages */
-int
-sys_old_mmap_pgoff(struct tcb *tcp)
+SYS_FUNC(old_mmap_pgoff)
{
long u_arg[5];
int i;
unsigned narrow_arg[6];
unsigned long long offset;
- if (umoven(tcp, tcp->u_arg[0], sizeof(narrow_arg), (char *) narrow_arg) == -1)
+ if (umoven(tcp, tcp->u_arg[0], sizeof(narrow_arg), narrow_arg) == -1)
return 0;
for (i = 0; i < 5; i++)
u_arg[i] = (unsigned long) narrow_arg[i];
offset = narrow_arg[5];
offset *= get_pagesize();
- return print_mmap(tcp, u_arg, offset);
+ print_mmap(tcp, u_arg, offset);
+
+ return RVAL_DECODED | RVAL_HEX;
}
#endif
/* Params are passed directly, offset is in bytes */
-int
-sys_mmap(struct tcb *tcp)
+SYS_FUNC(mmap)
{
- unsigned long long offset = (unsigned long) tcp->u_arg[5];
-#if defined(LINUX_MIPSN32) || defined(X32)
- /* Try test/x32_mmap.c */
- offset = tcp->ext_arg[5];
+ unsigned long long offset =
+#if HAVE_STRUCT_TCB_EXT_ARG
+ tcp->ext_arg[5]; /* try test/x32_mmap.c */
+#else
+ (unsigned long) tcp->u_arg[5];
#endif
/* Example of kernel-side handling of this variety of mmap:
* arch/x86/kernel/sys_x86_64.c::SYSCALL_DEFINE6(mmap, ...) calls
* sys_mmap_pgoff(..., off >> PAGE_SHIFT); i.e. off is in bytes,
* since the above code converts off to pages.
*/
- return print_mmap(tcp, tcp->u_arg, offset);
+ print_mmap(tcp, tcp->u_arg, offset);
+
+ return RVAL_DECODED | RVAL_HEX;
}
/* Params are passed directly, offset is in pages */
-int
-sys_mmap_pgoff(struct tcb *tcp)
+SYS_FUNC(mmap_pgoff)
{
/* Try test/mmap_offset_decode.c */
unsigned long long offset;
offset = (unsigned long) tcp->u_arg[5];
offset *= get_pagesize();
- return print_mmap(tcp, tcp->u_arg, offset);
+ print_mmap(tcp, tcp->u_arg, offset);
+
+ return RVAL_DECODED | RVAL_HEX;
}
/* Params are passed directly, offset is in 4k units */
-int
-sys_mmap_4koff(struct tcb *tcp)
+SYS_FUNC(mmap_4koff)
{
unsigned long long offset;
offset = (unsigned long) tcp->u_arg[5];
offset <<= 12;
- return print_mmap(tcp, tcp->u_arg, offset);
+ print_mmap(tcp, tcp->u_arg, offset);
+
+ return RVAL_DECODED | RVAL_HEX;
}
-int
-sys_munmap(struct tcb *tcp)
+SYS_FUNC(munmap)
{
- if (entering(tcp)) {
- tprintf("%#lx, %lu",
- tcp->u_arg[0], tcp->u_arg[1]);
- }
- return 0;
+ printaddr(tcp->u_arg[0]);
+ tprintf(", %lu", tcp->u_arg[1]);
+
+ return RVAL_DECODED;
}
-int
-sys_mprotect(struct tcb *tcp)
+SYS_FUNC(mprotect)
{
- if (entering(tcp)) {
- tprintf("%#lx, %lu, ",
- tcp->u_arg[0], tcp->u_arg[1]);
- printflags(mmap_prot, tcp->u_arg[2], "PROT_???");
- }
- return 0;
+ printaddr(tcp->u_arg[0]);
+ tprintf(", %lu, ", tcp->u_arg[1]);
+ printflags_long(mmap_prot, tcp->u_arg[2], "PROT_???");
+
+ return RVAL_DECODED;
}
#include "xlat/mremap_flags.h"
-int
-sys_mremap(struct tcb *tcp)
+SYS_FUNC(mremap)
{
- if (entering(tcp)) {
- tprintf("%#lx, %lu, %lu, ", tcp->u_arg[0], tcp->u_arg[1],
- tcp->u_arg[2]);
- printflags(mremap_flags, tcp->u_arg[3], "MREMAP_???");
+ printaddr(tcp->u_arg[0]);
+ tprintf(", %lu, %lu, ", tcp->u_arg[1], tcp->u_arg[2]);
+ printflags_long(mremap_flags, tcp->u_arg[3], "MREMAP_???");
#ifdef MREMAP_FIXED
- if ((tcp->u_arg[3] & (MREMAP_MAYMOVE | MREMAP_FIXED)) ==
- (MREMAP_MAYMOVE | MREMAP_FIXED))
- tprintf(", %#lx", tcp->u_arg[4]);
-#endif
+ if ((tcp->u_arg[3] & (MREMAP_MAYMOVE | MREMAP_FIXED)) ==
+ (MREMAP_MAYMOVE | MREMAP_FIXED)) {
+ tprints(", ");
+ printaddr(tcp->u_arg[4]);
}
- return RVAL_HEX;
+#endif
+ return RVAL_DECODED | RVAL_HEX;
}
#include "xlat/madvise_cmds.h"
-int
-sys_madvise(struct tcb *tcp)
+SYS_FUNC(madvise)
{
- if (entering(tcp)) {
- tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
- printxval(madvise_cmds, tcp->u_arg[2], "MADV_???");
- }
- return 0;
+ printaddr(tcp->u_arg[0]);
+ tprintf(", %lu, ", tcp->u_arg[1]);
+ printxval(madvise_cmds, tcp->u_arg[2], "MADV_???");
+
+ return RVAL_DECODED;
}
#include "xlat/mlockall_flags.h"
-int
-sys_mlockall(struct tcb *tcp)
+SYS_FUNC(mlockall)
{
- if (entering(tcp)) {
- printflags(mlockall_flags, tcp->u_arg[0], "MCL_???");
- }
- return 0;
-}
+ printflags(mlockall_flags, tcp->u_arg[0], "MCL_???");
-#ifdef MS_ASYNC
+ return RVAL_DECODED;
+}
#include "xlat/mctl_sync.h"
-int
-sys_msync(struct tcb *tcp)
+SYS_FUNC(msync)
{
- if (entering(tcp)) {
- /* addr */
- tprintf("%#lx", tcp->u_arg[0]);
- /* len */
- tprintf(", %lu, ", tcp->u_arg[1]);
- /* flags */
- printflags(mctl_sync, tcp->u_arg[2], "MS_???");
- }
- return 0;
+ /* addr */
+ printaddr(tcp->u_arg[0]);
+ /* len */
+ tprintf(", %lu, ", tcp->u_arg[1]);
+ /* flags */
+ printflags(mctl_sync, tcp->u_arg[2], "MS_???");
+
+ return RVAL_DECODED;
}
-#endif /* MS_ASYNC */
-
-#ifdef MC_SYNC
-
-#include "xlat/mctl_funcs.h"
-#include "xlat/mctl_lockas.h"
+#include "xlat/mlock_flags.h"
-int
-sys_mctl(struct tcb *tcp)
+SYS_FUNC(mlock2)
{
- int arg, function;
+ printaddr(tcp->u_arg[0]);
+ tprintf(", %lu, ", tcp->u_arg[1]);
+ printflags(mlock_flags, tcp->u_arg[2], "MLOCK_???");
- if (entering(tcp)) {
- /* addr */
- tprintf("%#lx", tcp->u_arg[0]);
- /* len */
- tprintf(", %lu, ", tcp->u_arg[1]);
- /* function */
- function = tcp->u_arg[2];
- printflags(mctl_funcs, function, "MC_???");
- /* arg */
- arg = tcp->u_arg[3];
- tprints(", ");
- switch (function) {
- case MC_SYNC:
- printflags(mctl_sync, arg, "MS_???");
- break;
- case MC_LOCKAS:
- printflags(mctl_lockas, arg, "MCL_???");
- break;
- default:
- tprintf("%#x", arg);
- break;
- }
- }
- return 0;
+ return RVAL_DECODED;
}
-#endif /* MC_SYNC */
-
-int
-sys_mincore(struct tcb *tcp)
+SYS_FUNC(mincore)
{
if (entering(tcp)) {
- tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
+ printaddr(tcp->u_arg[0]);
+ tprintf(", %lu, ", tcp->u_arg[1]);
} else {
- unsigned long i, len;
- char *vec = NULL;
-
- len = tcp->u_arg[1];
- if (syserror(tcp) || tcp->u_arg[2] == 0 ||
- (vec = malloc(len)) == NULL ||
- umoven(tcp, tcp->u_arg[2], len, vec) < 0)
- tprintf("%#lx", tcp->u_arg[2]);
+ const unsigned long page_size = get_pagesize();
+ const unsigned long page_mask = page_size - 1;
+ unsigned long len = tcp->u_arg[1];
+ unsigned char *vec = NULL;
+
+ len = len / page_size + (len & page_mask ? 1 : 0);
+ if (syserror(tcp) || !verbose(tcp) ||
+ !tcp->u_arg[2] || !(vec = malloc(len)) ||
+ umoven(tcp, tcp->u_arg[2], len, vec) < 0)
+ printaddr(tcp->u_arg[2]);
else {
+ unsigned long i;
tprints("[");
for (i = 0; i < len; i++) {
if (abbrev(tcp) && i >= max_strlen) {
return 0;
}
-#if defined(ALPHA) || defined(IA64) || defined(SPARC) || defined(SPARC64)
-int
-sys_getpagesize(struct tcb *tcp)
+#if defined ALPHA || defined IA64 || defined M68K \
+ || defined SPARC || defined SPARC64
+SYS_FUNC(getpagesize)
{
- if (exiting(tcp))
- return RVAL_HEX;
- return 0;
+ return RVAL_DECODED | RVAL_HEX;
}
#endif
-int
-sys_remap_file_pages(struct tcb *tcp)
+SYS_FUNC(remap_file_pages)
{
- if (entering(tcp)) {
- tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
- printflags(mmap_prot, tcp->u_arg[2], "PROT_???");
- tprintf(", %lu, ", tcp->u_arg[3]);
+ const unsigned long addr = tcp->u_arg[0];
+ const unsigned long size = tcp->u_arg[1];
+ const unsigned long prot = tcp->u_arg[2];
+ const unsigned long pgoff = tcp->u_arg[3];
+ const unsigned long flags = tcp->u_arg[4];
+
+ printaddr(addr);
+ tprintf(", %lu, ", size);
+ printflags_long(mmap_prot, prot, "PROT_???");
+ tprintf(", %lu, ", pgoff);
#ifdef MAP_TYPE
- printxval(mmap_flags, tcp->u_arg[4] & MAP_TYPE, "MAP_???");
- addflags(mmap_flags, tcp->u_arg[4] & ~MAP_TYPE);
+ printxval_long(mmap_flags, flags & MAP_TYPE, "MAP_???");
+ addflags(mmap_flags, flags & ~MAP_TYPE);
#else
- printflags(mmap_flags, tcp->u_arg[4], "MAP_???");
+ printflags_long(mmap_flags, flags, "MAP_???");
#endif
- }
- return 0;
-}
-
-#define MPOL_DEFAULT 0
-#define MPOL_PREFERRED 1
-#define MPOL_BIND 2
-#define MPOL_INTERLEAVE 3
-
-#define MPOL_F_NODE (1<<0)
-#define MPOL_F_ADDR (1<<1)
-
-#define MPOL_MF_STRICT (1<<0)
-#define MPOL_MF_MOVE (1<<1)
-#define MPOL_MF_MOVE_ALL (1<<2)
-#include "xlat/policies.h"
-#include "xlat/mbindflags.h"
-#include "xlat/mempolicyflags.h"
-#include "xlat/move_pages_flags.h"
-
-static void
-get_nodes(struct tcb *tcp, unsigned long ptr, unsigned long maxnodes, int err)
-{
- unsigned long nlongs, size, end;
-
- nlongs = (maxnodes + 8 * sizeof(long) - 1) / (8 * sizeof(long));
- size = nlongs * sizeof(long);
- end = ptr + size;
- if (nlongs == 0 || ((err || verbose(tcp)) && (size * 8 == maxnodes)
- && (end > ptr))) {
- unsigned long n, cur, abbrev_end;
- int failed = 0;
-
- if (abbrev(tcp)) {
- abbrev_end = ptr + max_strlen * sizeof(long);
- if (abbrev_end < ptr)
- abbrev_end = end;
- } else {
- abbrev_end = end;
- }
- tprints(", {");
- for (cur = ptr; cur < end; cur += sizeof(long)) {
- if (cur > ptr)
- tprints(", ");
- if (cur >= abbrev_end) {
- tprints("...");
- break;
- }
- if (umoven(tcp, cur, sizeof(n), (char *) &n) < 0) {
- tprints("?");
- failed = 1;
- break;
- }
- tprintf("%#0*lx", (int) sizeof(long) * 2 + 2, n);
- }
- tprints("}");
- if (failed)
- tprintf(" %#lx", ptr);
- } else
- tprintf(", %#lx", ptr);
- tprintf(", %lu", maxnodes);
+ return RVAL_DECODED;
}
-int
-sys_mbind(struct tcb *tcp)
+#if defined(POWERPC)
+static bool
+print_protmap_entry(struct tcb *tcp, void *elem_buf, size_t elem_size, void *data)
{
- if (entering(tcp)) {
- tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
- printxval(policies, tcp->u_arg[2], "MPOL_???");
- get_nodes(tcp, tcp->u_arg[3], tcp->u_arg[4], 0);
- tprints(", ");
- printflags(mbindflags, tcp->u_arg[5], "MPOL_???");
- }
- return 0;
-}
+ tprintf("%#08x", * (unsigned int *) elem_buf);
-int
-sys_set_mempolicy(struct tcb *tcp)
-{
- if (entering(tcp)) {
- printxval(policies, tcp->u_arg[0], "MPOL_???");
- get_nodes(tcp, tcp->u_arg[1], tcp->u_arg[2], 0);
- }
- return 0;
+ return true;
}
-int
-sys_get_mempolicy(struct tcb *tcp)
+SYS_FUNC(subpage_prot)
{
- if (exiting(tcp)) {
- int pol;
- if (tcp->u_arg[0] == 0)
- tprints("NULL");
- else if (syserror(tcp) || umove(tcp, tcp->u_arg[0], &pol) < 0)
- tprintf("%#lx", tcp->u_arg[0]);
- else
- printxval(policies, pol, "MPOL_???");
- get_nodes(tcp, tcp->u_arg[1], tcp->u_arg[2], syserror(tcp));
- tprintf(", %#lx, ", tcp->u_arg[3]);
- printflags(mempolicyflags, tcp->u_arg[4], "MPOL_???");
- }
- return 0;
-}
+ unsigned long addr = tcp->u_arg[0];
+ unsigned long len = tcp->u_arg[1];
+ unsigned long nmemb = len >> 16;
+ unsigned long map = tcp->u_arg[2];
-int
-sys_migrate_pages(struct tcb *tcp)
-{
- if (entering(tcp)) {
- tprintf("%ld, ", (long) (pid_t) tcp->u_arg[0]);
- get_nodes(tcp, tcp->u_arg[2], tcp->u_arg[1], 0);
- tprints(", ");
- get_nodes(tcp, tcp->u_arg[3], tcp->u_arg[1], 0);
- }
- return 0;
-}
+ printaddr(addr);
+ tprintf(", %lu, ", len);
-int
-sys_move_pages(struct tcb *tcp)
-{
- if (entering(tcp)) {
- unsigned long npages = tcp->u_arg[1];
- tprintf("%ld, %lu, ", tcp->u_arg[0], npages);
- if (tcp->u_arg[2] == 0)
- tprints("NULL, ");
- else {
- int i;
- long puser = tcp->u_arg[2];
- tprints("{");
- for (i = 0; i < npages; ++i) {
- void *p;
- if (i > 0)
- tprints(", ");
- if (umove(tcp, puser, &p) < 0) {
- tprints("???");
- break;
- }
- tprintf("%p", p);
- puser += sizeof(void *);
- }
- tprints("}, ");
- }
- if (tcp->u_arg[3] == 0)
- tprints("NULL, ");
- else {
- int i;
- long nodeuser = tcp->u_arg[3];
- tprints("{");
- for (i = 0; i < npages; ++i) {
- int node;
- if (i > 0)
- tprints(", ");
- if (umove(tcp, nodeuser, &node) < 0) {
- tprints("???");
- break;
- }
- tprintf("%#x", node);
- nodeuser += sizeof(int);
- }
- tprints("}, ");
- }
- }
- if (exiting(tcp)) {
- unsigned long npages = tcp->u_arg[1];
- if (tcp->u_arg[4] == 0)
- tprints("NULL, ");
- else {
- int i;
- long statususer = tcp->u_arg[4];
- tprints("{");
- for (i = 0; i < npages; ++i) {
- int status;
- if (i > 0)
- tprints(", ");
- if (umove(tcp, statususer, &status) < 0) {
- tprints("???");
- break;
- }
- tprintf("%#x", status);
- statususer += sizeof(int);
- }
- tprints("}, ");
- }
- printflags(move_pages_flags, tcp->u_arg[5], "MPOL_???");
- }
- return 0;
-}
+ unsigned int entry;
+ print_array(tcp, map, nmemb, &entry, sizeof(entry),
+ umoven_or_printaddr, print_protmap_entry, 0);
-#if defined(POWERPC)
-int
-sys_subpage_prot(struct tcb *tcp)
-{
- if (entering(tcp)) {
- unsigned long cur, end, abbrev_end, entries;
- unsigned int entry;
-
- tprintf("%#lx, %#lx, ", tcp->u_arg[0], tcp->u_arg[1]);
- entries = tcp->u_arg[1] >> 16;
- if (!entries || !tcp->u_arg[2]) {
- tprints("{}");
- return 0;
- }
- cur = tcp->u_arg[2];
- end = cur + (sizeof(int) * entries);
- if (!verbose(tcp) || end < tcp->u_arg[2]) {
- tprintf("%#lx", tcp->u_arg[2]);
- return 0;
- }
- if (abbrev(tcp)) {
- abbrev_end = cur + (sizeof(int) * max_strlen);
- if (abbrev_end > end)
- abbrev_end = end;
- }
- else
- abbrev_end = end;
- tprints("{");
- for (; cur < end; cur += sizeof(int)) {
- if (cur > tcp->u_arg[2])
- tprints(", ");
- if (cur >= abbrev_end) {
- tprints("...");
- break;
- }
- if (umove(tcp, cur, &entry) < 0) {
- tprintf("??? [%#lx]", cur);
- break;
- }
- else
- tprintf("%#08x", entry);
- }
- tprints("}");
- }
-
- return 0;
+ return RVAL_DECODED;
}
#endif
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