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Fixed hamsandwich vtable patching on Linux for newer GCC binaries.

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This commit is contained in:
Scott Ehlert
2013-02-04 07:31:32 -06:00
parent ad960a64e2
commit 944f608f09
1 changed files with 7 additions and 3 deletions
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10
dlls/hamsandwich/hook.h
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@@ -35,6 +35,8 @@
// This is just a simple container for data so I only have to add 1 extra
// parameter to calls that get trampolined
#define ALIGN(ar) ((intptr_t)ar & ~(sysconf(_SC_PAGESIZE)-1))
class Hook
{
public:
@@ -66,7 +68,8 @@ public:
DWORD OldFlags;
VirtualProtect(&ivtable[entry],sizeof(int*),PAGE_READWRITE,&OldFlags);
#elif defined __linux__
mprotect(&ivtable[entry],sizeof(int*),PROT_READ|PROT_WRITE);
void *addr = (void *)ALIGN(&ivtable[entry]);
mprotect(addr,sysconf(_SC_PAGESIZE),PROT_READ|PROT_WRITE);
#endif
ivtable[entry]=(int*)tramp;
@@ -84,8 +87,9 @@ public:
#if defined _WIN32
DWORD OldFlags;
VirtualProtect(&ivtable[entry],sizeof(int*),PAGE_READWRITE,&OldFlags);
#elif defined __linux__
mprotect(&ivtable[entry],sizeof(int*),PROT_READ|PROT_WRITE);
#elif defined __linux_
void *addr = (void *)ALIGN(&ivtable[entry]);
mprotect(addr,sysconf(_SC_PAGESIZE),PROT_READ|PROT_WRITE);
#endif
ivtable[entry]=(int *)func;