| 1 | #define LDSO_ARCH "x32" |
| 2 | |
| 3 | /* FIXME: x32 is very strange in its use of 64-bit relocation types in |
| 4 | * a 32-bit environment. As long as the memory at reloc_addr is |
| 5 | * zero-filled prior to relocations, just treating 64-bit relocations |
| 6 | * as operating on 32-bit slots should be fine, but this should be |
| 7 | * checked. In particular, R_X86_64_64, R_X86_64_DTPOFF64, and |
| 8 | * R_X86_64_TPOFF64 may need checking. */ |
| 9 | |
| 10 | /* The R_X86_64_64, R_X86_64_DTPOFF32, and R_X86_64_TPOFF32 reloc types |
| 11 | * were previously mapped in the switch table form of this file; however, |
| 12 | * they do not seem to be used/usable for anything. If needed, new |
| 13 | * mappings will have to be added. */ |
| 14 | |
| 15 | #define REL_SYMBOLIC R_X86_64_32 |
| 16 | #define REL_OFFSET R_X86_64_PC32 |
| 17 | #define REL_GOT R_X86_64_GLOB_DAT |
| 18 | #define REL_PLT R_X86_64_JUMP_SLOT |
| 19 | #define REL_RELATIVE R_X86_64_RELATIVE |
| 20 | #define REL_COPY R_X86_64_COPY |
| 21 | #define REL_DTPMOD R_X86_64_DTPMOD64 |
| 22 | #define REL_DTPOFF R_X86_64_DTPOFF64 |
| 23 | #define REL_TPOFF R_X86_64_TPOFF64 |
| 24 | |
| 25 | #define CRTJMP(pc,sp) __asm__ __volatile__( \ |
| 26 | "mov %1,%%esp ; jmp *%0" : : "r"((uint64_t)(uintptr_t)pc), "r"(sp) : "memory" ) |
| 27 | |
| 28 | #define GETFUNCSYM(fp, sym, got) __asm__ ( \ |
| 29 | ".hidden " #sym "\n" \ |
| 30 | " lea " #sym "(%%rip),%0\n" \ |
| 31 | : "=r"(*fp) : : "memory" ) |