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DARWIN sync: sys_readlink layout.

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git-svn-id: svn://svn.valgrind.org/valgrind/trunk@10121
This commit is contained in:
Nicholas Nethercote 2009-05-23 01:51:54 +00:00
parent e6f07f20d3
commit 63d3d86e21
1 changed files with 21 additions and 16 deletions
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37
coregrind/m_syswrap/syswrap-generic.c
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@ -3540,8 +3540,7 @@ POST(sys_poll)
PRE(sys_readlink)
{
HChar name[25];
Word saved = SYSNO;
Word saved = SYSNO;
PRINT("sys_readlink ( %#lx(%s), %#lx, %llu )", ARG1,(char*)ARG1,ARG2,(ULong)ARG3);
PRE_REG_READ3(long, "readlink",
@ -3549,20 +3548,26 @@ PRE(sys_readlink)
PRE_MEM_RASCIIZ( "readlink(path)", ARG1 );
PRE_MEM_WRITE( "readlink(buf)", ARG2,ARG3 );
/*
* Handle the case where readlink is looking at /proc/self/exe or
* /proc/<pid>/exe.
*/
VG_(sprintf)(name, "/proc/%d/exe", VG_(getpid)());
if (ML_(safe_to_deref)((void*)ARG1, 1)
&& (VG_(strcmp)((Char *)ARG1, name) == 0
|| VG_(strcmp)((Char *)ARG1, "/proc/self/exe") == 0)) {
VG_(sprintf)(name, "/proc/self/fd/%d", VG_(cl_exec_fd));
SET_STATUS_from_SysRes( VG_(do_syscall3)(saved, (UWord)name,
ARG2, ARG3));
} else {
/* Normal case */
SET_STATUS_from_SysRes( VG_(do_syscall3)(saved, ARG1, ARG2, ARG3));
{
/*
* Handle the case where readlink is looking at /proc/self/exe or
* /proc/<pid>/exe.
*/
HChar name[25];
Char* arg1s = (Char*) ARG1;
VG_(sprintf)(name, "/proc/%d/exe", VG_(getpid)());
if (ML_(safe_to_deref)(arg1s, 1) &&
(VG_STREQ(arg1s, name) || VG_STREQ(arg1s, "/proc/self/exe"))
)
{
VG_(sprintf)(name, "/proc/self/fd/%d", VG_(cl_exec_fd));
SET_STATUS_from_SysRes( VG_(do_syscall3)(saved, (UWord)name,
ARG2, ARG3));
} else
{
/* Normal case */
SET_STATUS_from_SysRes( VG_(do_syscall3)(saved, ARG1, ARG2, ARG3));
}
}
if (SUCCESS && RES > 0)