#include "defs.h"
#include <asm/mman.h>
#include <sys/mman.h>
-#if defined(I386)
-# include <asm/ldt.h>
-# ifdef HAVE_STRUCT_USER_DESC
-# define modify_ldt_ldt_s user_desc
-# endif
-#endif
-#if defined(SH64)
-# include <asm/page.h> /* for PAGE_SHIFT */
-#endif
+
+static unsigned long
+get_pagesize()
+{
+ static unsigned long pagesize;
+
+ if (!pagesize)
+ pagesize = sysconf(_SC_PAGESIZE);
+ return pagesize;
+}
int
sys_brk(struct tcb *tcp)
}
static const struct xlat mmap_prot[] = {
- { PROT_NONE, "PROT_NONE", },
- { PROT_READ, "PROT_READ" },
- { PROT_WRITE, "PROT_WRITE" },
- { PROT_EXEC, "PROT_EXEC" },
+ XLAT(PROT_NONE),
+ XLAT(PROT_READ),
+ XLAT(PROT_WRITE),
+ XLAT(PROT_EXEC),
#ifdef PROT_SEM
- { PROT_SEM, "PROT_SEM" },
+ XLAT(PROT_SEM),
#endif
#ifdef PROT_GROWSDOWN
- { PROT_GROWSDOWN,"PROT_GROWSDOWN"},
+ XLAT(PROT_GROWSDOWN),
#endif
#ifdef PROT_GROWSUP
- { PROT_GROWSUP, "PROT_GROWSUP" },
+ XLAT(PROT_GROWSUP),
#endif
#ifdef PROT_SAO
- { PROT_SAO, "PROT_SAO" },
+ XLAT(PROT_SAO),
#endif
- { 0, NULL },
+ XLAT_END
};
static const struct xlat mmap_flags[] = {
- { MAP_SHARED, "MAP_SHARED" },
- { MAP_PRIVATE, "MAP_PRIVATE" },
- { MAP_FIXED, "MAP_FIXED" },
+ XLAT(MAP_SHARED),
+ XLAT(MAP_PRIVATE),
+ XLAT(MAP_FIXED),
#ifdef MAP_ANONYMOUS
- { MAP_ANONYMOUS,"MAP_ANONYMOUS" },
+ XLAT(MAP_ANONYMOUS),
#endif
#ifdef MAP_32BIT
- { MAP_32BIT, "MAP_32BIT" },
+ XLAT(MAP_32BIT),
#endif
#ifdef MAP_RENAME
- { MAP_RENAME, "MAP_RENAME" },
+ XLAT(MAP_RENAME),
#endif
#ifdef MAP_NORESERVE
- { MAP_NORESERVE,"MAP_NORESERVE" },
+ XLAT(MAP_NORESERVE),
#endif
#ifdef MAP_POPULATE
- { MAP_POPULATE, "MAP_POPULATE" },
+ XLAT(MAP_POPULATE),
#endif
#ifdef MAP_NONBLOCK
- { MAP_NONBLOCK, "MAP_NONBLOCK" },
+ XLAT(MAP_NONBLOCK),
#endif
/*
* XXX - this was introduced in SunOS 4.x to distinguish between
* and calls with it as "mmap()".
*/
#ifdef _MAP_NEW
- { _MAP_NEW, "_MAP_NEW" },
+ XLAT(_MAP_NEW),
#endif
#ifdef MAP_GROWSDOWN
- { MAP_GROWSDOWN,"MAP_GROWSDOWN" },
+ XLAT(MAP_GROWSDOWN),
#endif
#ifdef MAP_DENYWRITE
- { MAP_DENYWRITE,"MAP_DENYWRITE" },
+ XLAT(MAP_DENYWRITE),
#endif
#ifdef MAP_EXECUTABLE
- { MAP_EXECUTABLE,"MAP_EXECUTABLE"},
+ XLAT(MAP_EXECUTABLE),
#endif
#ifdef MAP_INHERIT
- { MAP_INHERIT, "MAP_INHERIT" },
+ XLAT(MAP_INHERIT),
#endif
#ifdef MAP_FILE
- { MAP_FILE, "MAP_FILE" },
+ XLAT(MAP_FILE),
#endif
#ifdef MAP_LOCKED
- { MAP_LOCKED, "MAP_LOCKED" },
+ XLAT(MAP_LOCKED),
#endif
/* FreeBSD ones */
#if defined(MAP_ANON) && (!defined(MAP_ANONYMOUS) || MAP_ANON != MAP_ANONYMOUS)
- { MAP_ANON, "MAP_ANON" },
+ XLAT(MAP_ANON),
#endif
#ifdef MAP_HASSEMAPHORE
- { MAP_HASSEMAPHORE,"MAP_HASSEMAPHORE"},
+ XLAT(MAP_HASSEMAPHORE),
#endif
#ifdef MAP_STACK
- { MAP_STACK, "MAP_STACK" },
+ XLAT(MAP_STACK),
+#endif
+#ifdef MAP_HUGETLB
+ XLAT(MAP_HUGETLB),
#endif
#if defined MAP_UNINITIALIZED && MAP_UNINITIALIZED > 0
- { MAP_UNINITIALIZED,"MAP_UNINITIALIZED"},
+ XLAT(MAP_UNINITIALIZED),
#endif
#ifdef MAP_NOSYNC
- { MAP_NOSYNC, "MAP_NOSYNC" },
+ XLAT(MAP_NOSYNC),
#endif
#ifdef MAP_NOCORE
- { MAP_NOCORE, "MAP_NOCORE" },
-#endif
-#ifdef TILE
- { MAP_CACHE_NO_LOCAL, "MAP_CACHE_NO_LOCAL" },
- { MAP_CACHE_NO_L2, "MAP_CACHE_NO_L2" },
- { MAP_CACHE_NO_L1, "MAP_CACHE_NO_L1" },
+ XLAT(MAP_NOCORE),
#endif
- { 0, NULL },
+ XLAT_END
};
-#ifdef TILE
-static int
-addtileflags(long flags)
-{
- long home = flags & _MAP_CACHE_MKHOME(_MAP_CACHE_HOME_MASK);
- flags &= ~_MAP_CACHE_MKHOME(_MAP_CACHE_HOME_MASK);
-
- if (flags & _MAP_CACHE_INCOHERENT) {
- flags &= ~_MAP_CACHE_INCOHERENT;
- if (home == MAP_CACHE_HOME_NONE) {
- tprints("|MAP_CACHE_INCOHERENT");
- return flags;
- }
- tprints("|_MAP_CACHE_INCOHERENT");
- }
-
- switch (home) {
- case 0: break;
- case MAP_CACHE_HOME_HERE: tprints("|MAP_CACHE_HOME_HERE"); break;
- case MAP_CACHE_HOME_NONE: tprints("|MAP_CACHE_HOME_NONE"); break;
- case MAP_CACHE_HOME_SINGLE: tprints("|MAP_CACHE_HOME_SINGLE"); break;
- case MAP_CACHE_HOME_TASK: tprints("|MAP_CACHE_HOME_TASK"); break;
- case MAP_CACHE_HOME_HASH: tprints("|MAP_CACHE_HOME_HASH"); break;
- default:
- tprintf("|MAP_CACHE_HOME(%ld)",
- (home >> _MAP_CACHE_HOME_SHIFT) );
- break;
- }
-
- return flags;
-}
-#endif
-
-#if !HAVE_LONG_LONG_OFF_T
static int
print_mmap(struct tcb *tcp, long *u_arg, unsigned long long offset)
{
/* flags */
#ifdef MAP_TYPE
printxval(mmap_flags, u_arg[3] & MAP_TYPE, "MAP_???");
-# ifdef TILE
- addflags(mmap_flags, addtileflags(u_arg[3] & ~MAP_TYPE));
-# else
addflags(mmap_flags, u_arg[3] & ~MAP_TYPE);
-# endif
#else
printflags(mmap_flags, u_arg[3], "MAP_???");
#endif
return RVAL_HEX;
}
-int sys_old_mmap(struct tcb *tcp)
+/* Syscall name<->function correspondence is messed up on many arches.
+ * For example:
+ * i386 has __NR_mmap == 90, and it is "old mmap", and
+ * also it has __NR_mmap2 == 192, which is a "new mmap with page offsets".
+ * But x86_64 has just one __NR_mmap == 9, a "new mmap with byte offsets".
+ * Confused? Me too!
+ */
+
+/* Params are pointed to by u_arg[0], offset is in bytes */
+int
+sys_old_mmap(struct tcb *tcp)
{
+ long u_arg[6];
#if defined(IA64)
/*
* IA64 processes never call this routine, they only use the
- * new `sys_mmap' interface.
- * For IA32 processes, this code converts the integer arguments
- * that they pushed onto the stack, into longs.
+ * new 'sys_mmap' interface. Only IA32 processes come here.
*/
int i;
- long u_arg[6];
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] = narrow_arg[i];
-#elif defined(SH) || defined(SH64)
- /* SH has always passed the args in registers */
- long *u_arg = tcp->u_arg;
+ u_arg[i] = (unsigned long) narrow_arg[i];
#elif defined(X86_64)
- long u_arg[6];
- if (current_personality == 1) {
- 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] = narrow_arg[i];
- } else {
- if (umoven(tcp, tcp->u_arg[0], sizeof(u_arg), (char *) u_arg) == -1)
- return 0;
- }
+ /* 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
- long u_arg[6];
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]);
+ return print_mmap(tcp, u_arg, (unsigned long) u_arg[5]);
+}
+
+#if defined(S390)
+/* Params are pointed to by u_arg[0], offset is in pages */
+int
+sys_old_mmap_pgoff(struct tcb *tcp)
+{
+ 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)
+ 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);
}
+#endif
+/* Params are passed directly, offset is in bytes */
int
sys_mmap(struct tcb *tcp)
{
unsigned long long offset = (unsigned long) tcp->u_arg[5];
-
-#if defined(SH64)
- /*
- * Old mmap differs from new mmap in specifying the
- * offset in units of bytes rather than pages. We
- * pretend it's in byte units so the user only ever
- * sees bytes in the printout.
- */
- offset <<= PAGE_SHIFT;
-#elif defined(I386)
- /* Try test/mmap_offset_decode.c */
- offset <<= 12; /* 4096 byte pages */
-#elif defined(LINUX_MIPSN32) || defined(X32)
+#if defined(LINUX_MIPSN32) || defined(X32)
/* Try test/x32_mmap.c */
- /* At least for X32 it definitely should not be page-shifted! */
offset = tcp->ext_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);
}
-#endif /* !HAVE_LONG_LONG_OFF_T */
-#if _LFS64_LARGEFILE || HAVE_LONG_LONG_OFF_T
-/* TODO: comment which arches use this routine.
- * For one, does ALPHA on Linux use this??
- * From code it seems that it might use 7 or 8 registers,
- * which is strange - Linux syscalls can pass maximum of 6 parameters!
- */
-# ifdef HAVE_LONG_LONG_OFF_T
-/* For systems that have a long long off_t,
- * sys_mmap in syscall tables is handled by sys_mmap64:
- */
-# define sys_mmap64 sys_mmap
-# endif
+/* Params are passed directly, offset is in pages */
int
-sys_mmap64(struct tcb *tcp)
+sys_mmap_pgoff(struct tcb *tcp)
{
- if (entering(tcp)) {
-#if defined(ALPHA) || defined(X32)
- long *u_arg = tcp->u_arg;
-#else
- long u_arg[7];
- if (umoven(tcp, tcp->u_arg[0], sizeof u_arg,
- (char *) u_arg) == -1)
- return 0;
-#endif
- /* 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 */
-#ifdef MAP_TYPE
- printxval(mmap_flags, u_arg[3] & MAP_TYPE, "MAP_???");
- addflags(mmap_flags, u_arg[3] & ~MAP_TYPE);
-#else
- printflags(mmap_flags, u_arg[3], "MAP_???");
-#endif
- /* fd */
- tprints(", ");
- printfd(tcp, u_arg[4]);
- /* offset */
-#if defined(ALPHA) || defined(X32)
- printllval(tcp, ", %#llx", 5);
-#else
- /* NOTE: not verified that [5] and [6] should be used.
- * It's possible that long long is 64-bit aligned in memory
- * and we need to use [6] and [7] here instead:
- */
- tprintf(", %#llx", LONG_LONG(u_arg[5], u_arg[6]));
-#endif
- }
- return RVAL_HEX;
+ /* 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);
+}
+
+/* Params are passed directly, offset is in 4k units */
+int
+sys_mmap_4koff(struct tcb *tcp)
+{
+ unsigned long long offset;
+ offset = (unsigned long) tcp->u_arg[5];
+ offset <<= 12;
+ return print_mmap(tcp, tcp->u_arg, offset);
}
-#endif /* _LFS64_LARGEFILE || HAVE_LONG_LONG_OFF_T */
int
sys_munmap(struct tcb *tcp)
}
static const struct xlat mremap_flags[] = {
- { MREMAP_MAYMOVE, "MREMAP_MAYMOVE" },
+ XLAT(MREMAP_MAYMOVE),
#ifdef MREMAP_FIXED
- { MREMAP_FIXED, "MREMAP_FIXED" },
+ XLAT(MREMAP_FIXED),
#endif
- { 0, NULL }
+ XLAT_END
};
int
static const struct xlat madvise_cmds[] = {
#ifdef MADV_NORMAL
- { MADV_NORMAL, "MADV_NORMAL" },
+ XLAT(MADV_NORMAL),
#endif
#ifdef MADV_RANDOM
- { MADV_RANDOM, "MADV_RANDOM" },
+ XLAT(MADV_RANDOM),
#endif
#ifdef MADV_SEQUENTIAL
- { MADV_SEQUENTIAL, "MADV_SEQUENTIAL" },
+ XLAT(MADV_SEQUENTIAL),
#endif
#ifdef MADV_WILLNEED
- { MADV_WILLNEED, "MADV_WILLNEED" },
+ XLAT(MADV_WILLNEED),
#endif
#ifdef MADV_DONTNEED
- { MADV_DONTNEED, "MADV_DONTNEED" },
+ XLAT(MADV_DONTNEED),
+#endif
+#ifdef MADV_REMOVE
+ XLAT(MADV_REMOVE),
+#endif
+#ifdef MADV_DONTFORK
+ XLAT(MADV_DONTFORK),
+#endif
+#ifdef MADV_DOFORK
+ XLAT(MADV_DOFORK),
+#endif
+#ifdef MADV_HWPOISON
+ XLAT(MADV_HWPOISON),
+#endif
+#ifdef MADV_SOFT_OFFLINE
+ XLAT(MADV_SOFT_OFFLINE),
+#endif
+#ifdef MADV_MERGEABLE
+ XLAT(MADV_MERGEABLE),
+#endif
+#ifdef MADV_UNMERGEABLE
+ XLAT(MADV_UNMERGEABLE),
+#endif
+#ifdef MADV_HUGEPAGE
+ XLAT(MADV_HUGEPAGE),
#endif
- { 0, NULL },
+#ifdef MADV_NOHUGEPAGE
+ XLAT(MADV_NOHUGEPAGE),
+#endif
+#ifdef MADV_DONTDUMP
+ XLAT(MADV_DONTDUMP),
+#endif
+#ifdef MADV_DODUMP
+ XLAT(MADV_DODUMP),
+#endif
+ XLAT_END
};
int
static const struct xlat mlockall_flags[] = {
#ifdef MCL_CURRENT
- { MCL_CURRENT, "MCL_CURRENT" },
+ XLAT(MCL_CURRENT),
#endif
#ifdef MCL_FUTURE
- { MCL_FUTURE, "MCL_FUTURE" },
+ XLAT(MCL_FUTURE),
#endif
- { 0, NULL}
+ XLAT_END
};
int
static const struct xlat mctl_sync[] = {
#ifdef MS_SYNC
- { MS_SYNC, "MS_SYNC" },
+ XLAT(MS_SYNC),
#endif
- { MS_ASYNC, "MS_ASYNC" },
- { MS_INVALIDATE,"MS_INVALIDATE" },
- { 0, NULL },
+ XLAT(MS_ASYNC),
+ XLAT(MS_INVALIDATE),
+ XLAT_END
};
int
#ifdef MC_SYNC
static const struct xlat mctl_funcs[] = {
- { MC_LOCK, "MC_LOCK" },
- { MC_LOCKAS, "MC_LOCKAS" },
- { MC_SYNC, "MC_SYNC" },
- { MC_UNLOCK, "MC_UNLOCK" },
- { MC_UNLOCKAS, "MC_UNLOCKAS" },
- { 0, NULL },
+ XLAT(MC_LOCK),
+ XLAT(MC_LOCKAS),
+ XLAT(MC_SYNC),
+ XLAT(MC_UNLOCK),
+ XLAT(MC_UNLOCKAS),
+ XLAT_END
};
static const struct xlat mctl_lockas[] = {
- { MCL_CURRENT, "MCL_CURRENT" },
- { MCL_FUTURE, "MCL_FUTURE" },
- { 0, NULL },
+ XLAT(MCL_CURRENT),
+ XLAT(MCL_FUTURE),
+ XLAT_END
};
int
}
#endif
-#if defined(I386)
-void
-print_ldt_entry(struct modify_ldt_ldt_s *ldt_entry)
-{
- tprintf("base_addr:%#08lx, "
- "limit:%d, "
- "seg_32bit:%d, "
- "contents:%d, "
- "read_exec_only:%d, "
- "limit_in_pages:%d, "
- "seg_not_present:%d, "
- "useable:%d}",
- (long) ldt_entry->base_addr,
- ldt_entry->limit,
- ldt_entry->seg_32bit,
- ldt_entry->contents,
- ldt_entry->read_exec_only,
- ldt_entry->limit_in_pages,
- ldt_entry->seg_not_present,
- ldt_entry->useable);
-}
-
-int
-sys_modify_ldt(struct tcb *tcp)
-{
- if (entering(tcp)) {
- struct modify_ldt_ldt_s copy;
- tprintf("%ld", tcp->u_arg[0]);
- if (tcp->u_arg[1] == 0
- || tcp->u_arg[2] != sizeof(struct modify_ldt_ldt_s)
- || umove(tcp, tcp->u_arg[1], ©) == -1)
- tprintf(", %lx", tcp->u_arg[1]);
- else {
- tprintf(", {entry_number:%d, ", copy.entry_number);
- if (!verbose(tcp))
- tprints("...}");
- else {
- print_ldt_entry(©);
- }
- }
- tprintf(", %lu", tcp->u_arg[2]);
- }
- return 0;
-}
-
-int
-sys_set_thread_area(struct tcb *tcp)
-{
- struct modify_ldt_ldt_s copy;
- if (entering(tcp)) {
- if (umove(tcp, tcp->u_arg[0], ©) != -1) {
- if (copy.entry_number == -1)
- tprintf("{entry_number:%d -> ",
- copy.entry_number);
- else
- tprints("{entry_number:");
- }
- } else {
- if (umove(tcp, tcp->u_arg[0], ©) != -1) {
- tprintf("%d, ", copy.entry_number);
- if (!verbose(tcp))
- tprints("...}");
- else {
- print_ldt_entry(©);
- }
- } else {
- tprintf("%lx", tcp->u_arg[0]);
- }
- }
- return 0;
-
-}
-
-int
-sys_get_thread_area(struct tcb *tcp)
-{
- struct modify_ldt_ldt_s copy;
- if (exiting(tcp)) {
- if (umove(tcp, tcp->u_arg[0], ©) != -1) {
- tprintf("{entry_number:%d, ", copy.entry_number);
- if (!verbose(tcp))
- tprints("...}");
- else {
- print_ldt_entry(©);
- }
- } else {
- tprintf("%lx", tcp->u_arg[0]);
- }
- }
- return 0;
-
-}
-#endif /* I386 */
-
-#if defined(M68K)
-int
-sys_set_thread_area(struct tcb *tcp)
-{
- if (entering(tcp))
- tprintf("%#lx", tcp->u_arg[0]);
- return 0;
-
-}
-
-int
-sys_get_thread_area(struct tcb *tcp)
-{
- return RVAL_HEX;
-}
-#endif
-
int
sys_remap_file_pages(struct tcb *tcp)
{
#define MPOL_MF_MOVE_ALL (1<<2)
static const struct xlat policies[] = {
- { MPOL_DEFAULT, "MPOL_DEFAULT" },
- { MPOL_PREFERRED, "MPOL_PREFERRED" },
- { MPOL_BIND, "MPOL_BIND" },
- { MPOL_INTERLEAVE, "MPOL_INTERLEAVE" },
- { 0, NULL }
+ XLAT(MPOL_DEFAULT),
+ XLAT(MPOL_PREFERRED),
+ XLAT(MPOL_BIND),
+ XLAT(MPOL_INTERLEAVE),
+ XLAT_END
};
static const struct xlat mbindflags[] = {
- { MPOL_MF_STRICT, "MPOL_MF_STRICT" },
- { MPOL_MF_MOVE, "MPOL_MF_MOVE" },
- { MPOL_MF_MOVE_ALL, "MPOL_MF_MOVE_ALL" },
- { 0, NULL }
+ XLAT(MPOL_MF_STRICT),
+ XLAT(MPOL_MF_MOVE),
+ XLAT(MPOL_MF_MOVE_ALL),
+ XLAT_END
};
static const struct xlat mempolicyflags[] = {
- { MPOL_F_NODE, "MPOL_F_NODE" },
- { MPOL_F_ADDR, "MPOL_F_ADDR" },
- { 0, NULL }
+ XLAT(MPOL_F_NODE),
+ XLAT(MPOL_F_ADDR),
+ XLAT_END
};
static const struct xlat move_pages_flags[] = {
- { MPOL_MF_MOVE, "MPOL_MF_MOVE" },
- { MPOL_MF_MOVE_ALL, "MPOL_MF_MOVE_ALL" },
- { 0, NULL }
+ XLAT(MPOL_MF_MOVE),
+ XLAT(MPOL_MF_MOVE_ALL),
+ XLAT_END
};
static void
projects / strace / blobdiff