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writejump() needs to tell valgrind which piece of code has been 

modified.
This commit is contained in:
Adam Gundy 2003-05-08 21:03:30 +00:00 committed by Alexandre Julliard
parent 9ea3c2d3ee
commit 5548822a7d
1 changed files with 7 additions and 0 deletions
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7
scheduler/sysdeps.c
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@ -44,6 +44,9 @@
#ifdef HAVE_SCHED_H #ifdef HAVE_SCHED_H
#include <sched.h> #include <sched.h>
#endif #endif
#ifdef HAVE_VALGRIND_MEMCHECK_H
#include <valgrind/memcheck.h>
#endif
#ifdef HAVE_NPTL #ifdef HAVE_NPTL
#include <pthread.h> #include <pthread.h>
@ -424,6 +427,10 @@ static inline void writejump( const char *symbol, void *dest )
addr[0] = 0xe9; addr[0] = 0xe9;
*(int *)(addr+1) = (unsigned char *)dest - (addr + 5); *(int *)(addr+1) = (unsigned char *)dest - (addr + 5);
mprotect((void*)((unsigned int)addr & ~(getpagesize()-1)), 5, PROT_READ|PROT_EXEC); mprotect((void*)((unsigned int)addr & ~(getpagesize()-1)), 5, PROT_READ|PROT_EXEC);
#ifdef HAVE_VALGRIND_MEMCHECK_H
VALGRIND_DISCARD_TRANSLATIONS( addr, 5 );
#endif
} }
#endif #endif