* Chia-I Wu <olv@lunarg.com>
*/
+#ifdef HAVE_FUNC_ATTRIBUTE_VISIBILITY
+#define HIDDEN __attribute__((visibility("hidden")))
+#else
+#define HIDDEN
+#endif
__asm__(".text\n"
".balign 32\n"
".balign 32\n" \
func ":"
+#ifndef __ILP32__
+
#define STUB_ASM_CODE(slot) \
"movq " ENTRY_CURRENT_TABLE "@GOTTPOFF(%rip), %rax\n\t" \
"movq %fs:(%rax), %r11\n\t" \
"jmp *(8 * " slot ")(%r11)"
+#else
+
+#define STUB_ASM_CODE(slot) \
+ "movq " ENTRY_CURRENT_TABLE "@GOTTPOFF(%rip), %rax\n\t" \
+ "movl %fs:(%rax), %r11d\n\t" \
+ "movl 4*" slot "(%r11d), %r11d\n\t" \
+ "jmp *%r11"
+
+#endif
+
#define MAPI_TMP_STUB_ASM_GCC
#include "mapi_tmp.h"
{
}
-static char
-x86_64_entry_start[];
+extern char
+x86_64_entry_start[] HIDDEN;
mapi_func
entry_get_public(int slot)
entry_patch(mapi_func entry, int slot)
{
char *code = (char *) entry;
- *((unsigned int *) (code + 12)) = slot * sizeof(mapi_func);
+ int offset = 12;
+#ifdef __ILP32__
+ offset = 13;
+#endif
+ *((unsigned int *) (code + offset)) = slot * sizeof(mapi_func);
}
mapi_func
entry_generate(int slot)
{
- const char code_templ[16] = {
+ const char code_templ[] = {
+#ifndef __ILP32__
/* movq %fs:0, %r11 */
0x64, 0x4c, 0x8b, 0x1c, 0x25, 0x00, 0x00, 0x00, 0x00,
/* jmp *0x1234(%r11) */
0x41, 0xff, 0xa3, 0x34, 0x12, 0x00, 0x00,
+#else
+ /* movl %fs:0, %r11d */
+ 0x64, 0x44, 0x8b, 0x1c, 0x25, 0x00, 0x00, 0x00, 0x00,
+ /* movl 0x1234(%r11d), %r11d */
+ 0x67, 0x45, 0x8b, 0x9b, 0x34, 0x12, 0x00, 0x00,
+ /* jmp *%r11 */
+ 0x41, 0xff, 0xe3,
+#endif
};
- unsigned long addr;
+ unsigned long long addr;
char *code;
mapi_func entry;