| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame] | 1 | #include <sysdep.h> /* For ARCH_HAS_T2. */ |
| 2 | |
| 3 | #ifdef __thumb2__ |
| 4 | # define ARM_PC_OFFSET "4" |
| 5 | #else |
| 6 | # define ARM_PC_OFFSET "8" |
| 7 | #endif |
| 8 | |
| 9 | /* Returns the address of data containing ".word SYMBOL(RELOC)". */ |
| 10 | #if defined (ARCH_HAS_T2) && !defined (PIC) |
| 11 | # define GET_SPECIAL_RELOC(symbol, reloc) \ |
| 12 | ({ \ |
| 13 | int *__##symbol##_rodata; \ |
| 14 | asm ("movw %0, #:lower16:1f\n" \ |
| 15 | "movt %0, #:upper16:1f\n" \ |
| 16 | ".pushsection .rodata.cst4, \"aM\", %%progbits, 4\n" \ |
| 17 | ".balign 4\n" \ |
| 18 | "1: .word " #symbol "(" #reloc ")\n" \ |
| 19 | ".popsection" \ |
| 20 | : "=r" (__##symbol##_rodata)); \ |
| 21 | __##symbol##_rodata; \ |
| 22 | }) |
| 23 | #elif defined (ARCH_HAS_T2) && defined (PIC) && ARM_PCREL_MOVW_OK |
| 24 | # define GET_SPECIAL_RELOC(symbol, reloc) \ |
| 25 | ({ \ |
| 26 | int *__##symbol##_rodata; \ |
| 27 | asm ("movw %0, #:lower16:1f - 2f - " ARM_PC_OFFSET "\n" \ |
| 28 | "movt %0, #:upper16:1f - 2f - " ARM_PC_OFFSET "\n" \ |
| 29 | ".pushsection .rodata.cst4, \"aM\", %%progbits, 4\n" \ |
| 30 | ".balign 4\n" \ |
| 31 | "1: .word " #symbol "(" #reloc ")\n" \ |
| 32 | ".popsection\n" \ |
| 33 | "2: add %0, %0, pc" \ |
| 34 | : "=r" (__##symbol##_rodata)); \ |
| 35 | __##symbol##_rodata; \ |
| 36 | }) |
| 37 | #else |
| 38 | # define GET_SPECIAL_RELOC(symbol, reloc) \ |
| 39 | ({ \ |
| 40 | int *__##symbol##_rodata; \ |
| 41 | asm ("adr %0, 1f\n" \ |
| 42 | "b 2f\n" \ |
| 43 | ".balign 4\n" \ |
| 44 | "1: .word " #symbol "(" #reloc ")\n" \ |
| 45 | "2:" \ |
| 46 | : "=r" (__##symbol##_rodata)); \ |
| 47 | __##symbol##_rodata; \ |
| 48 | }) |
| 49 | #endif |
| 50 | |
| 51 | /* Returns the pointer value (SYMBOL(RELOC) + pc - PC_OFS). */ |
| 52 | #define GET_SPECIAL_PCREL(symbol, reloc) \ |
| 53 | ({ \ |
| 54 | int *__##symbol##_rodata = GET_SPECIAL_RELOC (symbol, reloc); \ |
| 55 | (void *) ((int) __##symbol##_rodata + *__##symbol##_rodata); \ |
| 56 | }) |
| 57 | |
| 58 | #define TLS_LE(x) \ |
| 59 | (__builtin_thread_pointer () + *GET_SPECIAL_RELOC (x, tpoff)) |
| 60 | |
| 61 | #define TLS_IE(x) \ |
| 62 | ((int *) (__builtin_thread_pointer () \ |
| 63 | + *(int *) GET_SPECIAL_PCREL (x, gottpoff))) |
| 64 | |
| 65 | extern void *__tls_get_addr (void *); |
| 66 | |
| 67 | #define TLS_LD(x) \ |
| 68 | ((int *) (__tls_get_addr (GET_SPECIAL_PCREL (x, tlsldm)) \ |
| 69 | + *GET_SPECIAL_RELOC (x, tlsldo))) |
| 70 | |
| 71 | #define TLS_GD(x) \ |
| 72 | ((int *) __tls_get_addr (GET_SPECIAL_PCREL (x, tlsgd))) |