diff options
Diffstat (limited to 'toolchain/elf2flt/patches')
| -rw-r--r-- | toolchain/elf2flt/patches/26dfb54a59c8c0106418a0c46ccb4288d9e066fd/0002-lm32.patch | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/toolchain/elf2flt/patches/26dfb54a59c8c0106418a0c46ccb4288d9e066fd/0002-lm32.patch b/toolchain/elf2flt/patches/26dfb54a59c8c0106418a0c46ccb4288d9e066fd/0002-lm32.patch new file mode 100644 index 000000000..b24b214c7 --- /dev/null +++ b/toolchain/elf2flt/patches/26dfb54a59c8c0106418a0c46ccb4288d9e066fd/0002-lm32.patch @@ -0,0 +1,167 @@ +diff -Nur elf2flt.orig/elf2flt.c elf2flt/elf2flt.c +--- elf2flt.orig/elf2flt.c 2023-09-07 15:59:10.019349031 +0200 ++++ elf2flt/elf2flt.c 2023-09-07 16:40:06.281961316 +0200 +@@ -62,6 +62,8 @@ + #include <elf/bfin.h> + #elif defined(TARGET_h8300) + #include <elf/h8.h> ++#elif defined(TARGET_lm32) ++#include <elf/lm32.h> + #elif defined(TARGET_m68k) + #include <elf/m68k.h> + #elif defined(TARGET_microblaze) +@@ -123,6 +125,11 @@ + #define ARCH "nios" + #elif defined(TARGET_nios2) + #define ARCH "nios2" ++#elif defined(TARGET_lm32) ++#define ARCH "lm32" ++#define FLAT_LM32_RELOC_TYPE_32_BIT 0 ++#define FLAT_LM32_RELOC_TYPE_HI16_BIT 1 ++#define FLAT_LM32_RELOC_TYPE_LO16_BIT 2 + #elif defined(TARGET_xtensa) + #define ARCH "xtensa" + #elif defined(TARGET_riscv64) +@@ -373,7 +380,7 @@ + int bad_relocs = 0; + asymbol **symb; + long nsymb; +-#ifdef TARGET_bfin ++#if defined (TARGET_bfin) || defined (TARGET_lm32) + unsigned long persistent_data = 0; + #endif + +@@ -690,6 +697,36 @@ + break; + default: + goto bad_resolved_reloc; ++#elif defined(TARGET_lm32) ++ case R_LM32_HI16: ++ case R_LM32_LO16: ++ if (q->howto->type == R_LM32_HI16) { ++ pflags = FLAT_LM32_RELOC_TYPE_HI16_BIT << 29; ++ } else { ++ pflags = FLAT_LM32_RELOC_TYPE_LO16_BIT << 29; ++ } ++ ++ relocation_needed = 1; ++ ++ /* remember the upper 16 bits */ ++ if ((0xffff0000 & sym_addr) != persistent_data) { ++ flat_relocs = (uint32_t *) ++ (realloc (flat_relocs, (flat_reloc_count + 1) * sizeof (uint32_t))); ++ if (verbose) ++ printf ("New persistent data for %08lx\n", sym_addr); ++ persistent_data = 0xffff0000 & sym_addr; ++ flat_relocs[flat_reloc_count++] = (sym_addr >> 16) | (3 << 29); ++ } ++ break; ++ case R_LM32_32: ++ pflags = FLAT_LM32_RELOC_TYPE_32_BIT << 29; ++ relocation_needed = 1; ++ break; ++ case R_LM32_CALL: ++ relocation_needed = 0; ++ break; ++ default: ++ goto bad_resolved_reloc; + #elif defined(TARGET_m68k) + case R_68K_32: + goto good_32bit_resolved_reloc; +@@ -1478,6 +1515,63 @@ + #undef _30BITS_RELOC + #undef _28BITS_RELOC + #endif ++#ifdef TARGET_lm32 ++ case R_LM32_32: ++ { ++ pflags = FLAT_LM32_RELOC_TYPE_32_BIT << 29; ++ sym_vma = elf2flt_bfd_section_vma(sym_section); ++ sym_addr += sym_vma + q->addend; ++ relocation_needed = 1; ++ break; ++ } ++ case R_LM32_CALL: ++ { ++ sym_vma = 0; ++ sym_addr += sym_vma + q->addend; ++ sym_addr -= q->address; ++ sym_addr = (int32_t)sym_addr >> q->howto->rightshift; ++ ++ if ((int32_t)sym_addr < -0x8000000 || (int32_t)sym_addr > 0x7ffffff) { ++ printf("ERROR: Relocation overflow for R_LM32_CALL relocation against %s\n", sym_name); ++ bad_relocs++; ++ continue; ++ } ++ ++ r_mem[0] |= (sym_addr >> 24) & 0x03; ++ r_mem[1] = (sym_addr >> 16) & 0xff; ++ r_mem[2] = (sym_addr >> 8) & 0xff; ++ r_mem[3] = sym_addr & 0xff; ++ break; ++ } ++ case R_LM32_HI16: ++ case R_LM32_LO16: ++ { ++ if (q->howto->type == R_LM32_HI16) { ++ pflags = FLAT_LM32_RELOC_TYPE_HI16_BIT << 29; ++ } else { ++ pflags = FLAT_LM32_RELOC_TYPE_LO16_BIT << 29; ++ } ++ ++ sym_vma = elf2flt_bfd_section_vma(sym_section); ++ sym_addr += sym_vma + q->addend; ++ ++ relocation_needed = 1; ++ ++ /* remember the upper 16 bits */ ++ if ((0xffff0000 & sym_addr) != persistent_data) { ++ flat_relocs = (uint32_t *) ++ (realloc (flat_relocs, (flat_reloc_count + 1) * sizeof (uint32_t))); ++ if (verbose) ++ printf ("New persistent data for %08lx\n", sym_addr); ++ persistent_data = 0xffff0000 & sym_addr; ++ flat_relocs[flat_reloc_count++] = (sym_addr >> 16) | (3 << 29); ++ } ++ ++ r_mem[2] = (sym_addr >> 8) & 0xff; ++ r_mem[3] = sym_addr & 0xff; ++ break; ++ } ++#endif /* TARGET_lm32 */ + default: + /* missing support for other types of relocs */ + printf("ERROR: bad reloc type (%s)%d\n", q->howto->name, (*p)->howto->type); +@@ -1616,6 +1710,13 @@ + break; + #endif + ++#ifdef TARGET_lm32 ++ case R_LM32_HI16: ++ case R_LM32_LO16: ++ case R_LM32_CALL: ++ /* entry has already been written */ ++ break; ++#endif + default: + /* The alignment of the build host + might be stricter than that of the +diff -Nur elf2flt.orig/elf2flt.ld.in elf2flt/elf2flt.ld.in +--- elf2flt.orig/elf2flt.ld.in 2023-09-07 11:32:34.223463015 +0200 ++++ elf2flt/elf2flt.ld.in 2023-09-07 16:06:02.781672190 +0200 +@@ -73,6 +73,7 @@ + W_RODAT: *(.rodata1) + W_RODAT: *(.rodata.*) + W_RODAT: *(.gnu.linkonce.r*) ++W_RODAT: *(.rofixup) + + /* .ARM.extab name sections containing exception unwinding information */ + *(.ARM.extab* .gnu.linkonce.armextab.*) +@@ -111,6 +112,7 @@ + R_RODAT: *(.rodata1) + R_RODAT: *(.rodata.*) + R_RODAT: *(.gnu.linkonce.r*) ++R_RODAT: *(.rofixup) + *(.data) + *(.data1) + *(.data.*) |