Officially past the point of no return. C scripting works!

1 files changed, 0 insertions, 322 deletions

diff --git a/tinycc/arm64-link.c b/tinycc/arm64-link.c
deleted file mode 100644
index 568ac1f..0000000
--- a/tinycc/arm64-link.c
+++ /dev/null
@@ -1,322 +0,0 @@
-#ifdef TARGET_DEFS_ONLY
-
-#define EM_TCC_TARGET EM_AARCH64
-
-#define R_DATA_32  R_AARCH64_ABS32
-#define R_DATA_PTR R_AARCH64_ABS64
-#define R_JMP_SLOT R_AARCH64_JUMP_SLOT
-#define R_GLOB_DAT R_AARCH64_GLOB_DAT
-#define R_COPY     R_AARCH64_COPY
-#define R_RELATIVE R_AARCH64_RELATIVE
-
-#define R_NUM      R_AARCH64_NUM
-
-#define ELF_START_ADDR 0x00400000
-#define ELF_PAGE_SIZE 0x10000
-
-#define PCRELATIVE_DLLPLT 1
-#define RELOCATE_DLLPLT 1
-
-#else /* !TARGET_DEFS_ONLY */
-
-#include "tcc.h"
-
-#ifdef NEED_RELOC_TYPE
-/* Returns 1 for a code relocation, 0 for a data relocation. For unknown
-   relocations, returns -1. */
-int code_reloc (int reloc_type)
-{
-    switch (reloc_type) {
-        case R_AARCH64_ABS32:
-        case R_AARCH64_ABS64:
-	case R_AARCH64_PREL32:
-        case R_AARCH64_MOVW_UABS_G0_NC:
-        case R_AARCH64_MOVW_UABS_G1_NC:
-        case R_AARCH64_MOVW_UABS_G2_NC:
-        case R_AARCH64_MOVW_UABS_G3:
-        case R_AARCH64_ADR_PREL_PG_HI21:
-        case R_AARCH64_ADD_ABS_LO12_NC:
-        case R_AARCH64_ADR_GOT_PAGE:
-        case R_AARCH64_LD64_GOT_LO12_NC:
-        case R_AARCH64_LDST128_ABS_LO12_NC:
-        case R_AARCH64_LDST64_ABS_LO12_NC:
-        case R_AARCH64_LDST32_ABS_LO12_NC:
-        case R_AARCH64_LDST16_ABS_LO12_NC:
-        case R_AARCH64_LDST8_ABS_LO12_NC:
-        case R_AARCH64_GLOB_DAT:
-        case R_AARCH64_COPY:
-            return 0;
-
-        case R_AARCH64_JUMP26:
-        case R_AARCH64_CALL26:
-        case R_AARCH64_JUMP_SLOT:
-            return 1;
-    }
-    return -1;
-}
-
-/* Returns an enumerator to describe whether and when the relocation needs a
-   GOT and/or PLT entry to be created. See tcc.h for a description of the
-   different values. */
-int gotplt_entry_type (int reloc_type)
-{
-    switch (reloc_type) {
-	case R_AARCH64_PREL32:
-        case R_AARCH64_MOVW_UABS_G0_NC:
-        case R_AARCH64_MOVW_UABS_G1_NC:
-        case R_AARCH64_MOVW_UABS_G2_NC:
-        case R_AARCH64_MOVW_UABS_G3:
-        case R_AARCH64_ADR_PREL_PG_HI21:
-        case R_AARCH64_ADD_ABS_LO12_NC:
-        case R_AARCH64_LDST128_ABS_LO12_NC:
-        case R_AARCH64_LDST64_ABS_LO12_NC:
-        case R_AARCH64_LDST32_ABS_LO12_NC:
-        case R_AARCH64_LDST16_ABS_LO12_NC:
-        case R_AARCH64_LDST8_ABS_LO12_NC:
-        case R_AARCH64_GLOB_DAT:
-        case R_AARCH64_JUMP_SLOT:
-        case R_AARCH64_COPY:
-            return NO_GOTPLT_ENTRY;
-
-        case R_AARCH64_ABS32:
-        case R_AARCH64_ABS64:
-        case R_AARCH64_JUMP26:
-        case R_AARCH64_CALL26:
-            return AUTO_GOTPLT_ENTRY;
-
-        case R_AARCH64_ADR_GOT_PAGE:
-        case R_AARCH64_LD64_GOT_LO12_NC:
-            return ALWAYS_GOTPLT_ENTRY;
-    }
-    return -1;
-}
-
-#ifdef NEED_BUILD_GOT
-ST_FUNC unsigned create_plt_entry(TCCState *s1, unsigned got_offset, struct sym_attr *attr)
-{
-    Section *plt = s1->plt;
-    uint8_t *p;
-    unsigned plt_offset;
-
-    if (plt->data_offset == 0) {
-        section_ptr_add(plt, 32);
-    }
-    plt_offset = plt->data_offset;
-
-    p = section_ptr_add(plt, 16);
-    write32le(p, got_offset);
-    write32le(p + 4, (uint64_t) got_offset >> 32);
-    return plt_offset;
-}
-
-/* relocate the PLT: compute addresses and offsets in the PLT now that final
-   address for PLT and GOT are known (see fill_program_header) */
-ST_FUNC void relocate_plt(TCCState *s1)
-{
-    uint8_t *p, *p_end;
-
-    if (!s1->plt)
-      return;
-
-    p = s1->plt->data;
-    p_end = p + s1->plt->data_offset;
-
-    if (p < p_end) {
-        uint64_t plt = s1->plt->sh_addr;
-        uint64_t got = s1->got->sh_addr + 16;
-        uint64_t off = (got >> 12) - (plt >> 12);
-        if ((off + ((uint32_t)1 << 20)) >> 21)
-            tcc_error_noabort("Failed relocating PLT (off=0x%lx, got=0x%lx, plt=0x%lx)", (long)off, (long)got, (long)plt);
-        write32le(p, 0xa9bf7bf0); // stp x16,x30,[sp,#-16]!
-        write32le(p + 4, (0x90000010 | // adrp x16,...
-			  (off & 0x1ffffc) << 3 | (off & 3) << 29));
-        write32le(p + 8, (0xf9400211 | // ldr x17,[x16,#...]
-			  (got & 0xff8) << 7));
-        write32le(p + 12, (0x91000210 | // add x16,x16,#...
-			   (got & 0xfff) << 10));
-        write32le(p + 16, 0xd61f0220); // br x17
-        write32le(p + 20, 0xd503201f); // nop
-        write32le(p + 24, 0xd503201f); // nop
-        write32le(p + 28, 0xd503201f); // nop
-        p += 32;
-	got = s1->got->sh_addr;
-        while (p < p_end) {
-            uint64_t pc = plt + (p - s1->plt->data);
-            uint64_t addr = got + read64le(p);
-            uint64_t off = (addr >> 12) - (pc >> 12);
-            if ((off + ((uint32_t)1 << 20)) >> 21)
-                tcc_error_noabort("Failed relocating PLT (off=0x%lx, addr=0x%lx, pc=0x%lx)", (long)off, (long)addr, (long)pc);
-            write32le(p, (0x90000010 | // adrp x16,...
-			  (off & 0x1ffffc) << 3 | (off & 3) << 29));
-            write32le(p + 4, (0xf9400211 | // ldr x17,[x16,#...]
-			      (addr & 0xff8) << 7));
-            write32le(p + 8, (0x91000210 | // add x16,x16,#...
-			      (addr & 0xfff) << 10));
-            write32le(p + 12, 0xd61f0220); // br x17
-            p += 16;
-        }
-    }
-
-    if (s1->plt->reloc) {
-        ElfW_Rel *rel;
-        p = s1->got->data;
-        for_each_elem(s1->plt->reloc, 0, rel, ElfW_Rel) {
-            write64le(p + rel->r_offset, s1->plt->sh_addr);
-	}
-    }
-}
-#endif
-#endif
-
-void relocate(TCCState *s1, ElfW_Rel *rel, int type, unsigned char *ptr, addr_t addr, addr_t val)
-{
-    int sym_index = ELFW(R_SYM)(rel->r_info), esym_index;
-#ifdef DEBUG_RELOC
-    ElfW(Sym) *sym = &((ElfW(Sym) *)symtab_section->data)[sym_index];
-#endif
-
-    switch(type) {
-        case R_AARCH64_ABS64:
-            if ((s1->output_type & TCC_OUTPUT_DYN)) {
-                esym_index = get_sym_attr(s1, sym_index, 0)->dyn_index;
-                qrel->r_offset = rel->r_offset;
-                if (esym_index) {
-                    qrel->r_info = ELFW(R_INFO)(esym_index, R_AARCH64_ABS64);
-                    qrel->r_addend = rel->r_addend;
-                    qrel++;
-                    break;
-                } else {
-                    qrel->r_info = ELFW(R_INFO)(0, R_AARCH64_RELATIVE);
-                    qrel->r_addend = read64le(ptr) + val;
-                    qrel++;
-                }
-            }
-            add64le(ptr, val);
-            return;
-        case R_AARCH64_ABS32:
-            if (s1->output_type & TCC_OUTPUT_DYN) {
-                /* XXX: this logic may depend on TCC's codegen
-                   now TCC uses R_AARCH64_RELATIVE even for a 64bit pointer */
-                qrel->r_offset = rel->r_offset;
-                qrel->r_info = ELFW(R_INFO)(0, R_AARCH64_RELATIVE);
-                /* Use sign extension! */
-                qrel->r_addend = (int)read32le(ptr) + val;
-                qrel++;
-            }
-            add32le(ptr, val);
-            return;
-	case R_AARCH64_PREL32:
-            if (s1->output_type == TCC_OUTPUT_DLL) {
-                /* DLL relocation */
-                esym_index = get_sym_attr(s1, sym_index, 0)->dyn_index;
-                if (esym_index) {
-                    qrel->r_offset = rel->r_offset;
-                    qrel->r_info = ELFW(R_INFO)(esym_index, R_AARCH64_PREL32);
-                    /* Use sign extension! */
-                    qrel->r_addend = (int)read32le(ptr) + rel->r_addend;
-                    qrel++;
-                    break;
-                }
-            }
-	    write32le(ptr, val - addr);
-	    return;
-        case R_AARCH64_MOVW_UABS_G0_NC:
-            write32le(ptr, ((read32le(ptr) & 0xffe0001f) |
-                            (val & 0xffff) << 5));
-            return;
-        case R_AARCH64_MOVW_UABS_G1_NC:
-            write32le(ptr, ((read32le(ptr) & 0xffe0001f) |
-                            (val >> 16 & 0xffff) << 5));
-            return;
-        case R_AARCH64_MOVW_UABS_G2_NC:
-            write32le(ptr, ((read32le(ptr) & 0xffe0001f) |
-                            (val >> 32 & 0xffff) << 5));
-            return;
-        case R_AARCH64_MOVW_UABS_G3:
-            write32le(ptr, ((read32le(ptr) & 0xffe0001f) |
-                            (val >> 48 & 0xffff) << 5));
-            return;
-        case R_AARCH64_ADR_PREL_PG_HI21: {
-            uint64_t off = (val >> 12) - (addr >> 12);
-            if ((off + ((uint64_t)1 << 20)) >> 21)
-                tcc_error_noabort("R_AARCH64_ADR_PREL_PG_HI21 relocation failed");
-            write32le(ptr, ((read32le(ptr) & 0x9f00001f) |
-                            (off & 0x1ffffc) << 3 | (off & 3) << 29));
-            return;
-        }
-        case R_AARCH64_ADD_ABS_LO12_NC:
-        case R_AARCH64_LDST8_ABS_LO12_NC:
-            write32le(ptr, ((read32le(ptr) & 0xffc003ff) |
-                            (val & 0xfff) << 10));
-            return;
-        case R_AARCH64_LDST16_ABS_LO12_NC:
-            write32le(ptr, ((read32le(ptr) & 0xffc003ff) |
-                            (val & 0xffe) << 9));
-            return;
-        case R_AARCH64_LDST32_ABS_LO12_NC:
-            write32le(ptr, ((read32le(ptr) & 0xffc003ff) |
-                            (val & 0xffc) << 8));
-            return;
-        case R_AARCH64_LDST64_ABS_LO12_NC:
-            write32le(ptr, ((read32le(ptr) & 0xffc003ff) |
-                            (val & 0xff8) << 7));
-            return;
-        case R_AARCH64_LDST128_ABS_LO12_NC:
-            write32le(ptr, ((read32le(ptr) & 0xffc003ff) |
-                            (val & 0xff0) << 6));
-            return;
-        case R_AARCH64_JUMP26:
-        case R_AARCH64_CALL26:
-#ifdef DEBUG_RELOC
-	    printf ("reloc %d @ 0x%lx: val=0x%lx name=%s\n", type, addr, val,
-		    (char *) symtab_section->link->data + sym->st_name);
-#endif
-            if (((val - addr) + ((uint64_t)1 << 27)) & ~(uint64_t)0xffffffc)
-                tcc_error_noabort("R_AARCH64_(JUMP|CALL)26 relocation failed"
-                          " (val=%lx, addr=%lx)", (long)val, (long)addr);
-            write32le(ptr, (0x14000000 |
-                            (uint32_t)(type == R_AARCH64_CALL26) << 31 |
-                            ((val - addr) >> 2 & 0x3ffffff)));
-            return;
-        case R_AARCH64_ADR_GOT_PAGE: {
-            uint64_t off =
-                (((s1->got->sh_addr +
-                   get_sym_attr(s1, sym_index, 0)->got_offset) >> 12) - (addr >> 12));
-            if ((off + ((uint64_t)1 << 20)) >> 21)
-                tcc_error_noabort("R_AARCH64_ADR_GOT_PAGE relocation failed");
-            write32le(ptr, ((read32le(ptr) & 0x9f00001f) |
-                            (off & 0x1ffffc) << 3 | (off & 3) << 29));
-            return;
-        }
-        case R_AARCH64_LD64_GOT_LO12_NC:
-            write32le(ptr,
-                      ((read32le(ptr) & 0xfff803ff) |
-                       ((s1->got->sh_addr +
-                         get_sym_attr(s1, sym_index, 0)->got_offset) & 0xff8) << 7));
-            return;
-        case R_AARCH64_COPY:
-            return;
-        case R_AARCH64_GLOB_DAT:
-        case R_AARCH64_JUMP_SLOT:
-            /* They don't need addend */
-#ifdef DEBUG_RELOC
-	    printf ("reloc %d @ 0x%lx: val=0x%lx name=%s\n", type, addr,
-		    val - rel->r_addend,
-		    (char *) symtab_section->link->data + sym->st_name);
-#endif
-            write64le(ptr, val - rel->r_addend);
-            return;
-        case R_AARCH64_RELATIVE:
-#ifdef TCC_TARGET_PE
-            add32le(ptr, val - s1->pe_imagebase);
-#endif
-            /* do nothing */
-            return;
-        default:
-            fprintf(stderr, "FIXME: handle reloc type %x at %x [%p] to %x\n",
-                    type, (unsigned)addr, ptr, (unsigned)val);
-            return;
-    }
-}
-
-#endif /* !TARGET_DEFS_ONLY */