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Added more support for JIT on Linux

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This commit is contained in:
Pavol Marko 2004-05-28 11:21:31 +00:00
parent e0a9729b47
commit a6af81e359
1 changed files with 28 additions and 10 deletions
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38
amxmodx/amx.cpp
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@ -54,7 +54,7 @@
#if defined __LCC__ || defined __GNUC__ #if defined __LCC__ || defined __GNUC__
#include <wchar.h> /* for wcslen() */ #include <wchar.h> /* for wcslen() */
#endif #endif
#if (defined _Windows && !defined AMX_NODYNALOAD) || defined JIT #if (defined _Windows && !defined AMX_NODYNALOAD) || (defined JIT && !defined __linux__)
#include <windows.h> #include <windows.h>
#endif #endif
@ -68,6 +68,9 @@
#ifdef JIT #ifdef JIT
# ifdef __WIN32__ # ifdef __WIN32__
# include <windows.h> // DWORD, VirtualProtect, ... # include <windows.h> // DWORD, VirtualProtect, ...
# elif defined __linux__
# include <sys/mman.h> // mprotect, PROT_*
# include <unistd.h>
# else # else
// :TODO: // :TODO:
# endif # endif
@ -559,8 +562,11 @@ static int amx_BrowseRelocate(AMX *amx)
} /* if */ } /* if */
#if defined __GNUC__ || defined ASM32 || defined JIT #if defined __GNUC__ || defined ASM32 || defined JIT
/* relocate symbol */ /* relocate symbol */
#if defined JIT && defined __linux__
#else
*(cell *)(code+(int)cip) = opcode_list[op]; *(cell *)(code+(int)cip) = opcode_list[op];
#endif #endif
#endif
#if defined JIT #if defined JIT
opcode_count++; opcode_count++;
#endif #endif
@ -782,6 +788,10 @@ static int amx_BrowseRelocate(AMX *amx)
} /* for */ } /* for */
#if defined JIT #if defined JIT
#if defined __linux__
// HACK: Determine maxcodesize
asm_runJIT(NULL, NULL, NULL);
#endif
amx->code_size = getMaxCodeSize()*opcode_count + hdr->cod amx->code_size = getMaxCodeSize()*opcode_count + hdr->cod
+ (hdr->stp - hdr->dat); + (hdr->stp - hdr->dat);
amx->reloc_size = 2*sizeof(cell)*reloc_count; amx->reloc_size = 2*sizeof(cell)*reloc_count;
@ -1051,14 +1061,22 @@ int AMXAPI amx_Init(AMX *amx,void *program)
#if defined __linux__ #if defined __linux__
int memoryFullAccess(void* addr, int len) int memoryFullAccess(void* addr, int len)
{ {
int oldProt = get_page_prot(addr); //int oldProt = get_page_prot(addr);
sys_mprotect(addr, len, PROT_READ | PROT_WRITE | PROT_EXEC); void* newAddr = (void*) ((int)addr - (int)addr % getpagesize());
return oldProt; len += (int)addr % getpagesize();
if (mprotect(newAddr, len, PROT_READ | PROT_WRITE | PROT_EXEC) != -1)
return PROT_READ | PROT_WRITE | PROT_EXEC;
else
return 0;
} }
int memorySetAccess(void* addr, int len, int access) int memorySetAccess(void* addr, int len, int access)
{ {
sys_mprotect(addr, len, access); //int oldProt = get_page_prot(addr);
void* newAddr = (void*) ((int)addr - (int)addr % getpagesize());
len += (int)addr % getpagesize();
mprotect(newAddr, len, access);
return 0;
} }
#else #else
// DOS32 has no imposed limits on its segments. // DOS32 has no imposed limits on its segments.
@ -1080,7 +1098,7 @@ int AMXAPI amx_InitJIT(AMX *amx, void *reloc_table, void *native_code)
int mac, res; int mac, res;
AMX_HEADER *hdr; AMX_HEADER *hdr;
mac = memoryFullAccess( asm_runJIT, 20000 ); mac = memoryFullAccess( (void*)asm_runJIT, 20000 );
if ( ! mac ) if ( ! mac )
return AMX_ERR_INIT_JIT; return AMX_ERR_INIT_JIT;
@ -1093,7 +1111,7 @@ int AMXAPI amx_InitJIT(AMX *amx, void *reloc_table, void *native_code)
res = asm_runJIT( amx->base, reloc_table, native_code ); res = asm_runJIT( amx->base, reloc_table, native_code );
if ( res != 0 ) if ( res != 0 )
{ {
memorySetAccess( asm_runJIT, 20000, mac ); memorySetAccess( (void*)asm_runJIT, 20000, mac );
return AMX_ERR_INIT_JIT; return AMX_ERR_INIT_JIT;
} }
@ -1113,7 +1131,7 @@ int AMXAPI amx_InitJIT(AMX *amx, void *reloc_table, void *native_code)
*(cell *)((char*)native_code + hdr->dat + hdr->stp - sizeof(cell)) = 0; *(cell *)((char*)native_code + hdr->dat + hdr->stp - sizeof(cell)) = 0;
amx->stk = amx->stp; amx->stk = amx->stp;
memorySetAccess( asm_runJIT, 20000, mac ); memorySetAccess( (void*)asm_runJIT, 20000, mac );
return AMX_ERR_NONE; return AMX_ERR_NONE;
} }
@ -1639,7 +1657,7 @@ AMX_NATIVE_INFO * AMXAPI amx_NativeInfo(const char *name, AMX_NATIVE func)
#define CHKSTACK() if (stk>amx->stp) return AMX_ERR_STACKLOW #define CHKSTACK() if (stk>amx->stp) return AMX_ERR_STACKLOW
#define CHKHEAP() if (hea<amx->hlw) return AMX_ERR_HEAPLOW #define CHKHEAP() if (hea<amx->hlw) return AMX_ERR_HEAPLOW
#if defined __GNUC__ && !defined ASM32 #if defined __GNUC__ && !defined ASM32 && !defined JIT
/* GNU C version uses the "labels as values" extension to create /* GNU C version uses the "labels as values" extension to create
* fast "indirect threaded" interpreter. * fast "indirect threaded" interpreter.
*/ */
@ -2741,7 +2759,7 @@ static void *amx_opcodelist_nodebug[] = {
#endif #endif
#elif defined __GNUC__ #elif defined __GNUC__
/* force "cdecl" by adding an "attribute" to the declaration */ /* force "cdecl" by adding an "attribute" to the declaration */
extern cell amx_exec_asm(cell *regs,cell *retval,cell stp,cell hea) __attribute__((cdecl)); extern "C" cell amx_exec_asm(cell *regs,cell *retval,cell stp,cell hea) __attribute__((cdecl));
#else #else
/* force "cdecl" by specifying it as a "function class" with the "__cdecl" keyword */ /* force "cdecl" by specifying it as a "function class" with the "__cdecl" keyword */
extern "C" cell __cdecl amx_exec_asm(cell *regs,cell *retval,cell stp,cell hea); extern "C" cell __cdecl amx_exec_asm(cell *regs,cell *retval,cell stp,cell hea);