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author | ABDULLATIF Mouhamadi | 2017-05-24 01:17:24 +0200 |
---|---|---|
committer | ABDULLATIF Mouhamadi | 2017-05-24 01:17:24 +0200 |
commit | bfc311800883cbcfc3a373e483c3184d73a186c5 (patch) | |
tree | d32f4365c957a126854db7f978e55455cd7efb09 /50-binutils-2.17-atmega256x.patch | |
download | aur-binutils-avr-tinyos.tar.gz |
first commit
Diffstat (limited to '50-binutils-2.17-atmega256x.patch')
-rw-r--r-- | 50-binutils-2.17-atmega256x.patch | 2323 |
1 files changed, 2323 insertions, 0 deletions
diff --git a/50-binutils-2.17-atmega256x.patch b/50-binutils-2.17-atmega256x.patch new file mode 100644 index 000000000000..ddc6e19c82c3 --- /dev/null +++ b/50-binutils-2.17-atmega256x.patch @@ -0,0 +1,2323 @@ +diff -Nur bfd/archures.c bfd/archures.c +--- bfd/archures.c 2006-03-06 14:42:03.000000000 +0100 ++++ bfd/archures.c 2006-08-28 20:01:10.714097550 +0200 +@@ -334,6 +334,7 @@ + .#define bfd_mach_avr3 3 + .#define bfd_mach_avr4 4 + .#define bfd_mach_avr5 5 ++.#define bfd_mach_avr6 6 + . bfd_arch_bfin, {* ADI Blackfin *} + .#define bfd_mach_bfin 1 + . bfd_arch_cr16c, {* National Semiconductor CompactRISC. *} +diff -Nur bfd/bfd-in2.h bfd/bfd-in2.h +--- bfd/bfd-in2.h 2006-03-26 01:38:42.000000000 +0100 ++++ bfd/bfd-in2.h 2006-08-28 20:01:10.743095447 +0200 +@@ -1931,6 +1931,7 @@ + #define bfd_mach_avr3 3 + #define bfd_mach_avr4 4 + #define bfd_mach_avr5 5 ++#define bfd_mach_avr6 6 + bfd_arch_bfin, /* ADI Blackfin */ + #define bfd_mach_bfin 1 + bfd_arch_cr16c, /* National Semiconductor CompactRISC. */ +@@ -3539,10 +3540,22 @@ + command address) into 8 bit immediate value of LDI insn. */ + BFD_RELOC_AVR_LO8_LDI_PM, + ++/* This is a 16 bit reloc for the AVR that stores 8 bit value ++(command address) into 8 bit immediate value of LDI insn. If the address ++is beyond the 128k boundary, the linker inserts a jump stub for this reloc ++in the lower 128k. */ ++ BFD_RELOC_AVR_LO8_LDI_GS, ++ + /* This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit + of command address) into 8 bit immediate value of LDI insn. */ + BFD_RELOC_AVR_HI8_LDI_PM, + ++/* This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit ++of command address) into 8 bit immediate value of LDI insn. If the address ++is beyond the 128k boundary, the linker inserts a jump stub for this reloc ++below 128k. */ ++ BFD_RELOC_AVR_HI8_LDI_GS, ++ + /* This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit + of command address) into 8 bit immediate value of LDI insn. */ + BFD_RELOC_AVR_HH8_LDI_PM, +diff -Nur bfd/cpu-avr.c bfd/cpu-avr.c +--- bfd/cpu-avr.c 2006-03-03 16:54:23.000000000 +0100 ++++ bfd/cpu-avr.c 2006-08-28 20:01:10.771093417 +0200 +@@ -82,7 +82,10 @@ + N (16, bfd_mach_avr4, "avr:4", FALSE, & arch_info_struct[4]), + + /* ATmega161, ATmega163, ATmega32, AT94K. */ +- N (22, bfd_mach_avr5, "avr:5", FALSE, NULL) ++ N (22, bfd_mach_avr5, "avr:5", FALSE, & arch_info_struct[5]), ++ ++ /* ATmega256x. */ ++ N (22, bfd_mach_avr6, "avr:6", FALSE, NULL) + }; + + const bfd_arch_info_type bfd_avr_arch = +diff -Nur bfd/elf32-avr.c bfd/elf32-avr.c +--- bfd/elf32-avr.c 2006-03-03 16:54:23.000000000 +0100 ++++ bfd/elf32-avr.c 2006-08-28 20:18:20.796399347 +0200 +@@ -25,6 +25,92 @@ + #include "libbfd.h" + #include "elf-bfd.h" + #include "elf/avr.h" ++#include "elf32-avr.h" ++ ++/* Enable debugging printout at stdout with this variable. */ ++static bfd_boolean debug_relax = FALSE; ++ ++/* Enable debugging printout at stdout with this variable. */ ++static bfd_boolean debug_stubs = FALSE; ++ ++/* Hash table initialization and handling. Code is taken from the hppa port ++ and adapted to the needs of AVR. */ ++ ++/* We use two hash tables to hold information for linking avr objects. ++ ++ The first is the elf32_avr_link_hash_tablse which is derived from the ++ stanard ELF linker hash table. We use this as a place to attach the other ++ hash table and some static information. ++ ++ The second is the stub hash table which is derived from the base BFD ++ hash table. The stub hash table holds the information on the linker ++ stubs. */ ++ ++struct elf32_avr_stub_hash_entry ++{ ++ /* Base hash table entry structure. */ ++ struct bfd_hash_entry bh_root; ++ ++ /* Offset within stub_sec of the beginning of this stub. */ ++ bfd_vma stub_offset; ++ ++ /* Given the symbol's value and its section we can determine its final ++ value when building the stubs (so the stub knows where to jump). */ ++ bfd_vma target_value; ++ ++ /* This way we could mark stubs to be no longer necessary. */ ++ bfd_boolean is_actually_needed; ++}; ++ ++struct elf32_avr_link_hash_table ++{ ++ /* The main hash table. */ ++ struct elf_link_hash_table etab; ++ ++ /* The stub hash table. */ ++ struct bfd_hash_table bstab; ++ ++ bfd_boolean no_stubs; ++ ++ /* Linker stub bfd. */ ++ bfd *stub_bfd; ++ ++ /* The stub section. */ ++ asection *stub_sec; ++ ++ /* Usually 0, unless we are generating code for a bootloader. Will ++ be initialized by elf32_avr_size_stubs to the vma offset of the ++ output section associated with the stub section. */ ++ bfd_vma vector_base; ++ ++ /* Assorted information used by elf32_avr_size_stubs. */ ++ unsigned int bfd_count; ++ int top_index; ++ asection ** input_list; ++ Elf_Internal_Sym ** all_local_syms; ++ ++ /* Tables for mapping vma beyond the 128k boundary to the address of the ++ corresponding stub. (AMT) ++ "amt_max_entry_cnt" reflects the number of entries that memory is allocated ++ for in the "amt_stub_offsets" and "amt_destination_addr" arrays. ++ "amt_entry_cnt" informs how many of these entries actually contain ++ useful data. */ ++ unsigned int amt_entry_cnt; ++ unsigned int amt_max_entry_cnt; ++ bfd_vma * amt_stub_offsets; ++ bfd_vma * amt_destination_addr; ++}; ++ ++/* Various hash macros and functions. */ ++#define avr_link_hash_table(p) \ ++ ((struct elf32_avr_link_hash_table *) ((p)->hash)) ++ ++#define avr_stub_hash_entry(ent) \ ++ ((struct elf32_avr_stub_hash_entry *)(ent)) ++ ++#define avr_stub_hash_lookup(table, string, create, copy) \ ++ ((struct elf32_avr_stub_hash_entry *) \ ++ bfd_hash_lookup ((table), (string), (create), (copy))) + + static reloc_howto_type elf_avr_howto_table[] = + { +@@ -101,7 +187,8 @@ + 0xffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + +- /* A 16 bit absolute relocation for command address. */ ++ /* A 16 bit absolute relocation for command address ++ Will be changed when linker stubs are needed. */ + HOWTO (R_AVR_16_PM, /* type */ + 1, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ +@@ -207,7 +294,7 @@ + 0xffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + /* A low 8 bit absolute relocation of 24 bit program memory address. +- For LDI command. */ ++ For LDI command. Will not be changed when linker stubs are needed. */ + HOWTO (R_AVR_LO8_LDI_PM, /* type */ + 1, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ +@@ -221,8 +308,8 @@ + 0xffff, /* src_mask */ + 0xffff, /* dst_mask */ + FALSE), /* pcrel_offset */ +- /* A high 8 bit absolute relocation of 16 bit program memory address. +- For LDI command. */ ++ /* A low 8 bit absolute relocation of 24 bit program memory address. ++ For LDI command. Will not be changed when linker stubs are needed. */ + HOWTO (R_AVR_HI8_LDI_PM, /* type */ + 9, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ +@@ -236,8 +323,8 @@ + 0xffff, /* src_mask */ + 0xffff, /* dst_mask */ + FALSE), /* pcrel_offset */ +- /* A high 8 bit absolute relocation of 24 bit program memory address. +- For LDI command. */ ++ /* A low 8 bit absolute relocation of 24 bit program memory address. ++ For LDI command. Will not be changed when linker stubs are needed. */ + HOWTO (R_AVR_HH8_LDI_PM, /* type */ + 17, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ +@@ -251,8 +338,8 @@ + 0xffff, /* src_mask */ + 0xffff, /* dst_mask */ + FALSE), /* pcrel_offset */ +- /* A low 8 bit absolute relocation of a negative 24 bit +- program memory address. For LDI command. */ ++ /* A low 8 bit absolute relocation of 24 bit program memory address. ++ For LDI command. Will not be changed when linker stubs are needed. */ + HOWTO (R_AVR_LO8_LDI_PM_NEG, /* type */ + 1, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ +@@ -266,8 +353,8 @@ + 0xffff, /* src_mask */ + 0xffff, /* dst_mask */ + FALSE), /* pcrel_offset */ +- /* A high 8 bit absolute relocation of a negative 16 bit +- program memory address. For LDI command. */ ++ /* A low 8 bit absolute relocation of 24 bit program memory address. ++ For LDI command. Will not be changed when linker stubs are needed. */ + HOWTO (R_AVR_HI8_LDI_PM_NEG, /* type */ + 9, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ +@@ -281,8 +368,8 @@ + 0xffff, /* src_mask */ + 0xffff, /* dst_mask */ + FALSE), /* pcrel_offset */ +- /* A high 8 bit absolute relocation of a negative 24 bit +- program memory address. For LDI command. */ ++ /* A low 8 bit absolute relocation of 24 bit program memory address. ++ For LDI command. Will not be changed when linker stubs are needed. */ + HOWTO (R_AVR_HH8_LDI_PM_NEG, /* type */ + 17, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ +@@ -382,7 +469,37 @@ + FALSE, /* partial_inplace */ + 0xffff, /* src_mask */ + 0xffff, /* dst_mask */ +- FALSE) /* pcrel_offset */ ++ FALSE), /* pcrel_offset */ ++ /* A low 8 bit absolute relocation of 24 bit program memory address. ++ For LDI command. Will be changed when linker stubs are needed. */ ++ HOWTO (R_AVR_LO8_LDI_GS, /* type */ ++ 1, /* rightshift */ ++ 1, /* size (0 = byte, 1 = short, 2 = long) */ ++ 8, /* bitsize */ ++ FALSE, /* pc_relative */ ++ 0, /* bitpos */ ++ complain_overflow_dont, /* complain_on_overflow */ ++ bfd_elf_generic_reloc, /* special_function */ ++ "R_AVR_LO8_LDI_GS", /* name */ ++ FALSE, /* partial_inplace */ ++ 0xffff, /* src_mask */ ++ 0xffff, /* dst_mask */ ++ FALSE), /* pcrel_offset */ ++ /* A low 8 bit absolute relocation of 24 bit program memory address. ++ For LDI command. Will be changed when linker stubs are needed. */ ++ HOWTO (R_AVR_HI8_LDI_GS, /* type */ ++ 9, /* rightshift */ ++ 1, /* size (0 = byte, 1 = short, 2 = long) */ ++ 8, /* bitsize */ ++ FALSE, /* pc_relative */ ++ 0, /* bitpos */ ++ complain_overflow_dont, /* complain_on_overflow */ ++ bfd_elf_generic_reloc, /* special_function */ ++ "R_AVR_HI8_LDI_GS", /* name */ ++ FALSE, /* partial_inplace */ ++ 0xffff, /* src_mask */ ++ 0xffff, /* dst_mask */ ++ FALSE) /* pcrel_offset */ + }; + + /* Map BFD reloc types to AVR ELF reloc types. */ +@@ -393,7 +510,7 @@ + unsigned int elf_reloc_val; + }; + +- static const struct avr_reloc_map avr_reloc_map[] = ++static const struct avr_reloc_map avr_reloc_map[] = + { + { BFD_RELOC_NONE, R_AVR_NONE }, + { BFD_RELOC_32, R_AVR_32 }, +@@ -410,7 +527,9 @@ + { BFD_RELOC_AVR_HH8_LDI_NEG, R_AVR_HH8_LDI_NEG }, + { BFD_RELOC_AVR_MS8_LDI_NEG, R_AVR_MS8_LDI_NEG }, + { BFD_RELOC_AVR_LO8_LDI_PM, R_AVR_LO8_LDI_PM }, ++ { BFD_RELOC_AVR_LO8_LDI_GS, R_AVR_LO8_LDI_GS }, + { BFD_RELOC_AVR_HI8_LDI_PM, R_AVR_HI8_LDI_PM }, ++ { BFD_RELOC_AVR_HI8_LDI_GS, R_AVR_HI8_LDI_GS }, + { BFD_RELOC_AVR_HH8_LDI_PM, R_AVR_HH8_LDI_PM }, + { BFD_RELOC_AVR_LO8_LDI_PM_NEG, R_AVR_LO8_LDI_PM_NEG }, + { BFD_RELOC_AVR_HI8_LDI_PM_NEG, R_AVR_HI8_LDI_PM_NEG }, +@@ -429,8 +548,101 @@ + that we will never suggest a wrap-around jump during relaxation. + The logic of the source code later on assumes that in + avr_pc_wrap_around one single bit is set. */ ++static bfd_vma avr_pc_wrap_around = 0x10000000; ++ ++/* If this variable holds a value different from zero, the linker relaxation ++ machine will try to optimize call/ret sequences by a single jump ++ instruction. This option could be switched off by a linker switch. */ ++static int avr_replace_call_ret_sequences = 1; ++ ++/* Initialize an entry in the stub hash table. */ ++ ++static struct bfd_hash_entry * ++stub_hash_newfunc (struct bfd_hash_entry *entry, ++ struct bfd_hash_table *table, ++ const char *string) ++{ ++ /* Allocate the structure if it has not already been allocated by a ++ subclass. */ ++ if (entry == NULL) ++ { ++ entry = bfd_hash_allocate (table, ++ sizeof (struct elf32_avr_stub_hash_entry)); ++ if (entry == NULL) ++ return entry; ++ } ++ ++ /* Call the allocation method of the superclass. */ ++ entry = bfd_hash_newfunc (entry, table, string); ++ if (entry != NULL) ++ { ++ struct elf32_avr_stub_hash_entry *hsh; + +-unsigned int avr_pc_wrap_around = 0x10000000; ++ /* Initialize the local fields. */ ++ hsh = avr_stub_hash_entry (entry); ++ hsh->stub_offset = 0; ++ hsh->target_value = 0; ++ } ++ ++ return entry; ++} ++ ++/* Create the derived linker hash table. The AVR ELF port uses the derived ++ hash table to keep information specific to the AVR ELF linker (without ++ using static variables). */ ++ ++static struct bfd_link_hash_table * ++elf32_avr_link_hash_table_create (bfd *abfd) ++{ ++ struct elf32_avr_link_hash_table *htab; ++ bfd_size_type amt = sizeof (*htab); ++ ++ htab = bfd_malloc (amt); ++ if (htab == NULL) ++ return NULL; ++ ++ if (!_bfd_elf_link_hash_table_init (&htab->etab, abfd, ++ _bfd_elf_link_hash_newfunc, ++ sizeof (struct elf_link_hash_entry))) ++ { ++ free (htab); ++ return NULL; ++ } ++ ++ /* Init the stub hash table too. */ ++ if (!bfd_hash_table_init (&htab->bstab, stub_hash_newfunc, ++ sizeof (struct elf32_avr_stub_hash_entry))) ++ return NULL; ++ ++ htab->stub_bfd = NULL; ++ htab->stub_sec = NULL; ++ ++ /* Initialize the address mapping table. */ ++ htab->amt_stub_offsets = NULL; ++ htab->amt_destination_addr = NULL; ++ htab->amt_entry_cnt = 0; ++ htab->amt_max_entry_cnt = 0; ++ ++ return &htab->etab.root; ++} ++ ++/* Free the derived linker hash table. */ ++ ++static void ++elf32_avr_link_hash_table_free (struct bfd_link_hash_table *btab) ++{ ++ struct elf32_avr_link_hash_table *htab ++ = (struct elf32_avr_link_hash_table *) btab; ++ ++ /* Free the address mapping table. */ ++ if (htab->amt_stub_offsets != NULL) ++ free (htab->amt_stub_offsets); ++ if (htab->amt_destination_addr != NULL) ++ free (htab->amt_destination_addr); ++ ++ bfd_hash_table_free (&htab->bstab); ++ _bfd_generic_link_hash_table_free (btab); ++} + + /* Calculates the effective distance of a pc relative jump/call. */ + static int +@@ -564,20 +776,57 @@ + return TRUE; + } + ++static bfd_boolean ++avr_stub_is_required_for_16_bit_reloc (bfd_vma relocation) ++{ ++ return (relocation >= 0x020000); ++} ++ ++/* Returns the address of the corresponding stub if there is one. ++ Returns otherwise an address above 0x020000. This function ++ could also be used, if there is no knowledge on the section where ++ the destination is found. */ ++ ++static bfd_vma ++avr_get_stub_addr (bfd_vma srel, ++ struct elf32_avr_link_hash_table *htab) ++{ ++ unsigned int index; ++ bfd_vma stub_sec_addr = ++ (htab->stub_sec->output_section->vma + ++ htab->stub_sec->output_offset); ++ ++ for (index = 0; index < htab->amt_max_entry_cnt; index ++) ++ if (htab->amt_destination_addr[index] == srel) ++ return htab->amt_stub_offsets[index] + stub_sec_addr; ++ ++ /* Return an address that could not be reached by 16 bit relocs. */ ++ return 0x020000; ++} ++ + /* Perform a single relocation. By default we use the standard BFD + routines, but a few relocs, we have to do them ourselves. */ + + static bfd_reloc_status_type +-avr_final_link_relocate (reloc_howto_type * howto, +- bfd * input_bfd, +- asection * input_section, +- bfd_byte * contents, +- Elf_Internal_Rela * rel, +- bfd_vma relocation) ++avr_final_link_relocate (reloc_howto_type * howto, ++ bfd * input_bfd, ++ asection * input_section, ++ bfd_byte * contents, ++ Elf_Internal_Rela * rel, ++ bfd_vma relocation, ++ struct elf32_avr_link_hash_table * htab) + { + bfd_reloc_status_type r = bfd_reloc_ok; + bfd_vma x; + bfd_signed_vma srel; ++ bfd_signed_vma reloc_addr; ++ bfd_boolean use_stubs = FALSE; ++ /* Usually is 0, unless we are generating code for a bootloader. */ ++ bfd_signed_vma base_addr = htab->vector_base; ++ ++ /* Absolute addr of the reloc in the final excecutable. */ ++ reloc_addr = rel->r_offset + input_section->output_section->vma ++ + input_section->output_offset; + + switch (howto->type) + { +@@ -748,9 +997,31 @@ + bfd_put_16 (input_bfd, x, contents); + break; + ++ case R_AVR_LO8_LDI_GS: ++ use_stubs = (!htab->no_stubs); ++ /* Fall through. */ + case R_AVR_LO8_LDI_PM: + contents += rel->r_offset; + srel = (bfd_signed_vma) relocation + rel->r_addend; ++ ++ if (use_stubs ++ && avr_stub_is_required_for_16_bit_reloc (srel - base_addr)) ++ { ++ bfd_vma old_srel = srel; ++ ++ /* We need to use the address of the stub instead. */ ++ srel = avr_get_stub_addr (srel, htab); ++ if (debug_stubs) ++ printf ("LD: Using jump stub (at 0x%x) with destination 0x%x for " ++ "reloc at address 0x%x.\n", ++ (unsigned int) srel, ++ (unsigned int) old_srel, ++ (unsigned int) reloc_addr); ++ ++ if (avr_stub_is_required_for_16_bit_reloc (srel - base_addr)) ++ return bfd_reloc_outofrange; ++ } ++ + if (srel & 1) + return bfd_reloc_outofrange; + srel = srel >> 1; +@@ -759,9 +1030,31 @@ + bfd_put_16 (input_bfd, x, contents); + break; + ++ case R_AVR_HI8_LDI_GS: ++ use_stubs = (!htab->no_stubs); ++ /* Fall through. */ + case R_AVR_HI8_LDI_PM: + contents += rel->r_offset; + srel = (bfd_signed_vma) relocation + rel->r_addend; ++ ++ if (use_stubs ++ && avr_stub_is_required_for_16_bit_reloc (srel - base_addr)) ++ { ++ bfd_vma old_srel = srel; ++ ++ /* We need to use the address of the stub instead. */ ++ srel = avr_get_stub_addr (srel, htab); ++ if (debug_stubs) ++ printf ("LD: Using jump stub (at 0x%x) with destination 0x%x for " ++ "reloc at address 0x%x.\n", ++ (unsigned int) srel, ++ (unsigned int) old_srel, ++ (unsigned int) reloc_addr); ++ ++ if (avr_stub_is_required_for_16_bit_reloc (srel - base_addr)) ++ return bfd_reloc_outofrange; ++ } ++ + if (srel & 1) + return bfd_reloc_outofrange; + srel = srel >> 1; +@@ -833,6 +1126,35 @@ + bfd_put_16 (input_bfd, (bfd_vma) srel & 0xffff, contents+2); + break; + ++ case R_AVR_16_PM: ++ use_stubs = (!htab->no_stubs); ++ contents += rel->r_offset; ++ srel = (bfd_signed_vma) relocation + rel->r_addend; ++ ++ if (use_stubs ++ && avr_stub_is_required_for_16_bit_reloc (srel - base_addr)) ++ { ++ bfd_vma old_srel = srel; ++ ++ /* We need to use the address of the stub instead. */ ++ srel = avr_get_stub_addr (srel,htab); ++ if (debug_stubs) ++ printf ("LD: Using jump stub (at 0x%x) with destination 0x%x for " ++ "reloc at address 0x%x.\n", ++ (unsigned int) srel, ++ (unsigned int) old_srel, ++ (unsigned int) reloc_addr); ++ ++ if (avr_stub_is_required_for_16_bit_reloc (srel - base_addr)) ++ return bfd_reloc_outofrange; ++ } ++ ++ if (srel & 1) ++ return bfd_reloc_outofrange; ++ srel = srel >> 1; ++ bfd_put_16 (input_bfd, (bfd_vma) srel &0x00ffff, contents); ++ break; ++ + default: + r = _bfd_final_link_relocate (howto, input_bfd, input_section, + contents, rel->r_offset, +@@ -858,6 +1180,7 @@ + struct elf_link_hash_entry ** sym_hashes; + Elf_Internal_Rela * rel; + Elf_Internal_Rela * relend; ++ struct elf32_avr_link_hash_table * htab = avr_link_hash_table (info); + + if (info->relocatable) + return TRUE; +@@ -909,7 +1232,7 @@ + } + + r = avr_final_link_relocate (howto, input_bfd, input_section, +- contents, rel, relocation); ++ contents, rel, relocation, htab); + + if (r != bfd_reloc_ok) + { +@@ -990,6 +1313,10 @@ + case bfd_mach_avr5: + val = E_AVR_MACH_AVR5; + break; ++ ++ case bfd_mach_avr6: ++ val = E_AVR_MACH_AVR6; ++ break; + } + + elf_elfheader (abfd)->e_machine = EM_AVR; +@@ -1032,6 +1359,10 @@ + case E_AVR_MACH_AVR5: + e_set = bfd_mach_avr5; + break; ++ ++ case E_AVR_MACH_AVR6: ++ e_set = bfd_mach_avr6; ++ break; + } + } + return bfd_default_set_arch_mach (abfd, bfd_arch_avr, +@@ -1039,9 +1370,6 @@ + } + + +-/* Enable debugging printout at stdout with a value of 1. */ +-#define DEBUG_RELAX 0 +- + /* Delete some bytes from a section while changing the size of an instruction. + The parameter "addr" denotes the section-relative offset pointing just + behind the shrinked instruction. "addr+count" point at the first +@@ -1101,7 +1429,7 @@ + if ((irel->r_offset > addr + && irel->r_offset < toaddr)) + { +- if (DEBUG_RELAX) ++ if (debug_relax) + printf ("Relocation at address 0x%x needs to be moved.\n" + "Old section offset: 0x%x, New section offset: 0x%x \n", + (unsigned int) old_reloc_address, +@@ -1148,7 +1476,7 @@ + symval += sym_sec->output_section->vma + + sym_sec->output_offset; + +- if (DEBUG_RELAX) ++ if (debug_relax) + printf ("Checking if the relocation's " + "addend needs corrections.\n" + "Address of anchor symbol: 0x%x \n" +@@ -1163,7 +1491,7 @@ + { + irel->r_addend -= count; + +- if (DEBUG_RELAX) ++ if (debug_relax) + printf ("Anchor symbol and relocation target bracket " + "shrinked insn address.\n" + "Need for new addend : 0x%x\n", +@@ -1238,7 +1566,7 @@ + contains 4-byte jump instructions whose relative offset must not + be changed. */ + +-static bfd_boolean ++static bfd_boolean + elf32_avr_relax_section (bfd *abfd, + asection *sec, + struct bfd_link_info *link_info, +@@ -1251,10 +1579,37 @@ + Elf_Internal_Sym *isymbuf = NULL; + static asection *last_input_section = NULL; + static Elf_Internal_Rela *last_reloc = NULL; ++ struct elf32_avr_link_hash_table *htab; ++ ++ htab = avr_link_hash_table (link_info); + + /* Assume nothing changes. */ + *again = FALSE; + ++ if ((!htab->no_stubs) && (sec == htab->stub_sec)) ++ { ++ /* We are just relaxing the stub section. ++ Let's calculate the size needed again. */ ++ bfd_size_type last_estimated_stub_section_size = htab->stub_sec->size; ++ ++ if (debug_relax) ++ printf ("Relaxing the stub section. Size prior to this pass: %i\n", ++ (int) last_estimated_stub_section_size); ++ ++ elf32_avr_size_stubs (htab->stub_sec->output_section->owner, ++ link_info, FALSE); ++ ++ /* Check if the number of trampolines changed. */ ++ if (last_estimated_stub_section_size != htab->stub_sec->size) ++ *again = TRUE; ++ ++ if (debug_relax) ++ printf ("Size of stub section after this pass: %i\n", ++ (int) htab->stub_sec->size); ++ ++ return TRUE; ++ } ++ + /* We don't have to do anything for a relocatable link, if + this section does not have relocs, or if this is not a + code section. */ +@@ -1421,7 +1776,7 @@ + unsigned char code_msb; + unsigned char code_lsb; + +- if (DEBUG_RELAX) ++ if (debug_relax) + printf ("shrinking jump/call instruction at address 0x%x" + " in section %s\n\n", + (int) dot, sec->name); +@@ -1496,8 +1851,9 @@ + + sec->output_offset + irel->r_offset); + + /* Here we look for rcall/ret or call/ret sequences that could be +- safely replaced by rjmp/ret or jmp/ret */ +- if (0xd0 == (code_msb & 0xf0)) ++ safely replaced by rjmp/ret or jmp/ret. */ ++ if (((code_msb & 0xf0) == 0xd0) ++ && avr_replace_call_ret_sequences) + { + /* This insn is a rcall. */ + unsigned char next_insn_msb = 0; +@@ -1517,7 +1873,7 @@ + into a rjmp instruction. */ + code_msb &= 0xef; + bfd_put_8 (abfd, code_msb, contents + irel->r_offset + 1); +- if (DEBUG_RELAX) ++ if (debug_relax) + printf ("converted rcall/ret sequence at address 0x%x" + " into rjmp/ret sequence. Section is %s\n\n", + (int) dot, sec->name); +@@ -1526,7 +1882,8 @@ + } + } + else if ((0x94 == (code_msb & 0xfe)) +- && (0x0e == (code_lsb & 0x0e))) ++ && (0x0e == (code_lsb & 0x0e)) ++ && avr_replace_call_ret_sequences) + { + /* This insn is a call. */ + unsigned char next_insn_msb = 0; +@@ -1547,7 +1904,7 @@ + + code_lsb &= 0xfd; + bfd_put_8 (abfd, code_lsb, contents + irel->r_offset); +- if (DEBUG_RELAX) ++ if (debug_relax) + printf ("converted call/ret sequence at address 0x%x" + " into jmp/ret sequence. Section is %s\n\n", + (int) dot, sec->name); +@@ -1590,10 +1947,10 @@ + + address_of_ret = dot + insn_size; + +- if (DEBUG_RELAX && (insn_size == 2)) ++ if (debug_relax && (insn_size == 2)) + printf ("found rjmp / ret sequence at address 0x%x\n", + (int) dot); +- if (DEBUG_RELAX && (insn_size == 4)) ++ if (debug_relax && (insn_size == 4)) + printf ("found jmp / ret sequence at address 0x%x\n", + (int) dot); + +@@ -1630,7 +1987,7 @@ + there_is_preceeding_non_skip_insn = 0; + + if (there_is_preceeding_non_skip_insn == 0) +- if (DEBUG_RELAX) ++ if (debug_relax) + printf ("preceeding skip insn prevents deletion of" + " ret insn at addr 0x%x in section %s\n", + (int) dot + 2, sec->name); +@@ -1666,7 +2023,7 @@ + && isym->st_shndx == sec_shndx) + { + deleting_ret_is_safe = 0; +- if (DEBUG_RELAX) ++ if (debug_relax) + printf ("local label prevents deletion of ret " + "insn at address 0x%x\n", + (int) dot + insn_size); +@@ -1695,7 +2052,7 @@ + && sym_hash->root.u.def.value == section_offset_of_ret_insn) + { + deleting_ret_is_safe = 0; +- if (DEBUG_RELAX) ++ if (debug_relax) + printf ("global label prevents deletion of " + "ret insn at address 0x%x\n", + (int) dot + insn_size); +@@ -1772,7 +2129,7 @@ + if (address_of_ret == reloc_target) + { + deleting_ret_is_safe = 0; +- if (DEBUG_RELAX) ++ if (debug_relax) + printf ("ret from " + "rjmp/jmp ret sequence at address" + " 0x%x could not be deleted. ret" +@@ -1784,7 +2141,7 @@ + + if (deleting_ret_is_safe) + { +- if (DEBUG_RELAX) ++ if (debug_relax) + printf ("unreachable ret instruction " + "at address 0x%x deleted.\n", + (int) dot + insn_size); +@@ -1952,6 +2309,614 @@ + } + + ++/* Determines the hash entry name for a particular reloc. It consists of ++ the identifier of the symbol section and the added reloc addend and ++ symbol offset relative to the section the symbol is attached to. */ ++ ++static char * ++avr_stub_name (const asection *symbol_section, ++ const bfd_vma symbol_offset, ++ const Elf_Internal_Rela *rela) ++{ ++ char *stub_name; ++ bfd_size_type len; ++ ++ len = 8 + 1 + 8 + 1 + 1; ++ stub_name = bfd_malloc (len); ++ ++ sprintf (stub_name, "%08x+%08x", ++ symbol_section->id & 0xffffffff, ++ (unsigned int) ((rela->r_addend & 0xffffffff) + symbol_offset)); ++ ++ return stub_name; ++} ++ ++ ++/* Add a new stub entry to the stub hash. Not all fields of the new ++ stub entry are initialised. */ ++ ++static struct elf32_avr_stub_hash_entry * ++avr_add_stub (const char *stub_name, ++ struct elf32_avr_link_hash_table *htab) ++{ ++ struct elf32_avr_stub_hash_entry *hsh; ++ ++ /* Enter this entry into the linker stub hash table. */ ++ hsh = avr_stub_hash_lookup (&htab->bstab, stub_name, TRUE, FALSE); ++ ++ if (hsh == NULL) ++ { ++ (*_bfd_error_handler) (_("%B: cannot create stub entry %s"), ++ NULL, stub_name); ++ return NULL; ++ } ++ ++ hsh->stub_offset = 0; ++ return hsh; ++} ++ ++/* We assume that there is already space allocated for the stub section ++ contents and that before building the stubs the section size is ++ initialized to 0. We assume that within the stub hash table entry, ++ the absolute position of the jmp target has been written in the ++ target_value field. We write here the offset of the generated jmp insn ++ relative to the trampoline section start to the stub_offset entry in ++ the stub hash table entry. */ ++ ++static bfd_boolean ++avr_build_one_stub (struct bfd_hash_entry *bh, void *in_arg) ++{ ++ struct elf32_avr_stub_hash_entry *hsh; ++ struct bfd_link_info *info; ++ struct elf32_avr_link_hash_table *htab; ++ bfd *stub_bfd; ++ bfd_byte *loc; ++ bfd_vma target; ++ bfd_vma starget; ++ ++ /* Basic opcode */ ++ bfd_vma jmp_insn = 0x0000940c; ++ ++ /* Massage our args to the form they really have. */ ++ hsh = avr_stub_hash_entry (bh); ++ ++ if (!hsh->is_actually_needed) ++ return TRUE; ++ ++ info = (struct bfd_link_info *) in_arg; ++ ++ htab = avr_link_hash_table (info); ++ ++ target = hsh->target_value; ++ ++ /* Make a note of the offset within the stubs for this entry. */ ++ hsh->stub_offset = htab->stub_sec->size; ++ loc = htab->stub_sec->contents + hsh->stub_offset; ++ ++ stub_bfd = htab->stub_sec->owner; ++ ++ if (debug_stubs) ++ printf ("Building one Stub. Address: 0x%x, Offset: 0x%x\n", ++ (unsigned int) target, ++ (unsigned int) hsh->stub_offset); ++ ++ /* We now have to add the information on the jump target to the bare ++ opcode bits already set in jmp_insn. */ ++ ++ /* Check for the alignment of the address. */ ++ if (target & 1) ++ return FALSE; ++ ++ starget = target >> 1; ++ jmp_insn |= ((starget & 0x10000) | ((starget << 3) & 0x1f00000)) >> 16; ++ bfd_put_16 (stub_bfd, jmp_insn, loc); ++ bfd_put_16 (stub_bfd, (bfd_vma) starget & 0xffff, loc + 2); ++ ++ htab->stub_sec->size += 4; ++ ++ /* Now add the entries in the address mapping table if there is still ++ space left. */ ++ { ++ unsigned int nr; ++ ++ nr = htab->amt_entry_cnt + 1; ++ if (nr <= htab->amt_max_entry_cnt) ++ { ++ htab->amt_entry_cnt = nr; ++ ++ htab->amt_stub_offsets[nr - 1] = hsh->stub_offset; ++ htab->amt_destination_addr[nr - 1] = target; ++ } ++ } ++ ++ return TRUE; ++} ++ ++static bfd_boolean ++avr_mark_stub_not_to_be_necessary (struct bfd_hash_entry *bh, ++ void *in_arg) ++{ ++ struct elf32_avr_stub_hash_entry *hsh; ++ struct elf32_avr_link_hash_table *htab; ++ ++ htab = in_arg; ++ hsh = avr_stub_hash_entry (bh); ++ hsh->is_actually_needed = FALSE; ++ ++ return TRUE; ++} ++ ++static bfd_boolean ++avr_size_one_stub (struct bfd_hash_entry *bh, void *in_arg) ++{ ++ struct elf32_avr_stub_hash_entry *hsh; ++ struct elf32_avr_link_hash_table *htab; ++ int size; ++ ++ /* Massage our args to the form they really have. */ ++ hsh = avr_stub_hash_entry (bh); ++ htab = in_arg; ++ ++ if (hsh->is_actually_needed) ++ size = 4; ++ else ++ size = 0; ++ ++ htab->stub_sec->size += size; ++ return TRUE; ++} ++ ++void ++elf32_avr_setup_params (struct bfd_link_info *info, ++ bfd *avr_stub_bfd, ++ asection *avr_stub_section, ++ bfd_boolean no_stubs, ++ bfd_boolean deb_stubs, ++ bfd_boolean deb_relax, ++ bfd_vma pc_wrap_around, ++ bfd_boolean call_ret_replacement) ++{ ++ struct elf32_avr_link_hash_table *htab = avr_link_hash_table(info); ++ ++ htab->stub_sec = avr_stub_section; ++ htab->stub_bfd = avr_stub_bfd; ++ htab->no_stubs = no_stubs; ++ ++ debug_relax = deb_relax; ++ debug_stubs = deb_stubs; ++ avr_pc_wrap_around = pc_wrap_around; ++ avr_replace_call_ret_sequences = call_ret_replacement; ++} ++ ++ ++/* Set up various things so that we can make a list of input sections ++ for each output section included in the link. Returns -1 on error, ++ 0 when no stubs will be needed, and 1 on success. It also sets ++ information on the stubs bfd and the stub section in the info ++ struct. */ ++ ++int ++elf32_avr_setup_section_lists (bfd *output_bfd, ++ struct bfd_link_info *info) ++{ ++ bfd *input_bfd; ++ unsigned int bfd_count; ++ int top_id, top_index; ++ asection *section; ++ asection **input_list, **list; ++ bfd_size_type amt; ++ struct elf32_avr_link_hash_table *htab = avr_link_hash_table(info); ++ ++ if (htab->no_stubs) ++ return 0; ++ ++ /* Count the number of input BFDs and find the top input section id. */ ++ for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0; ++ input_bfd != NULL; ++ input_bfd = input_bfd->link_next) ++ { ++ bfd_count += 1; ++ for (section = input_bfd->sections; ++ section != NULL; ++ section = section->next) ++ if (top_id < section->id) ++ top_id = section->id; ++ } ++ ++ htab->bfd_count = bfd_count; ++ ++ /* We can't use output_bfd->section_count here to find the top output ++ section index as some sections may have been removed, and ++ strip_excluded_output_sections doesn't renumber the indices. */ ++ for (section = output_bfd->sections, top_index = 0; ++ section != NULL; ++ section = section->next) ++ if (top_index < section->index) ++ top_index = section->index; ++ ++ htab->top_index = top_index; ++ amt = sizeof (asection *) * (top_index + 1); ++ input_list = bfd_malloc (amt); ++ htab->input_list = input_list; ++ if (input_list == NULL) ++ return -1; ++ ++ /* For sections we aren't interested in, mark their entries with a ++ value we can check later. */ ++ list = input_list + top_index; ++ do ++ *list = bfd_abs_section_ptr; ++ while (list-- != input_list); ++ ++ for (section = output_bfd->sections; ++ section != NULL; ++ section = section->next) ++ if ((section->flags & SEC_CODE) != 0) ++ input_list[section->index] = NULL; ++ ++ return 1; ++} ++ ++ ++/* Read in all local syms for all input bfds, and create hash entries ++ for export stubs if we are building a multi-subspace shared lib. ++ Returns -1 on error, 0 otherwise. */ ++ ++static int ++get_local_syms (bfd *input_bfd, struct bfd_link_info *info) ++{ ++ unsigned int bfd_indx; ++ Elf_Internal_Sym *local_syms, **all_local_syms; ++ struct elf32_avr_link_hash_table *htab = avr_link_hash_table (info); ++ ++ /* We want to read in symbol extension records only once. To do this ++ we need to read in the local symbols in parallel and save them for ++ later use; so hold pointers to the local symbols in an array. */ ++ bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count; ++ all_local_syms = bfd_zmalloc (amt); ++ htab->all_local_syms = all_local_syms; ++ if (all_local_syms == NULL) ++ return -1; ++ ++ /* Walk over all the input BFDs, swapping in local symbols. ++ If we are creating a shared library, create hash entries for the ++ export stubs. */ ++ for (bfd_indx = 0; ++ input_bfd != NULL; ++ input_bfd = input_bfd->link_next, bfd_indx++) ++ { ++ Elf_Internal_Shdr *symtab_hdr; ++ ++ /* We'll need the symbol table in a second. */ ++ symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; ++ if (symtab_hdr->sh_info == 0) ++ continue; ++ ++ /* We need an array of the local symbols attached to the input bfd. */ ++ local_syms = (Elf_Internal_Sym *) symtab_hdr->contents; ++ if (local_syms == NULL) ++ { ++ local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, ++ symtab_hdr->sh_info, 0, ++ NULL, NULL, NULL); ++ /* Cache them for elf_link_input_bfd. */ ++ symtab_hdr->contents = (unsigned char *) local_syms; ++ } ++ if (local_syms == NULL) ++ return -1; ++ ++ all_local_syms[bfd_indx] = local_syms; ++ } ++ ++ return 0; ++} ++ ++#define ADD_DUMMY_STUBS_FOR_DEBUGGING 0 ++ ++bfd_boolean ++elf32_avr_size_stubs (bfd *output_bfd, ++ struct bfd_link_info *info, ++ bfd_boolean is_prealloc_run) ++{ ++ struct elf32_avr_link_hash_table *htab; ++ int stub_changed = 0; ++ ++ htab = avr_link_hash_table (info); ++ ++ /* At this point we initialize htab->vector_base ++ To the start of the text output section. */ ++ htab->vector_base = htab->stub_sec->output_section->vma; ++ ++ if (get_local_syms (info->input_bfds, info)) ++ { ++ if (htab->all_local_syms) ++ goto error_ret_free_local; ++ return FALSE; ++ } ++ ++ if (ADD_DUMMY_STUBS_FOR_DEBUGGING) ++ { ++ struct elf32_avr_stub_hash_entry *test; ++ ++ test = avr_add_stub ("Hugo",htab); ++ test->target_value = 0x123456; ++ test->stub_offset = 13; ++ ++ test = avr_add_stub ("Hugo2",htab); ++ test->target_value = 0x84210; ++ test->stub_offset = 14; ++ } ++ ++ while (1) ++ { ++ bfd *input_bfd; ++ unsigned int bfd_indx; ++ ++ /* We will have to re-generate the stub hash table each time anything ++ in memory has changed. */ ++ ++ bfd_hash_traverse (&htab->bstab, avr_mark_stub_not_to_be_necessary, htab); ++ for (input_bfd = info->input_bfds, bfd_indx = 0; ++ input_bfd != NULL; ++ input_bfd = input_bfd->link_next, bfd_indx++) ++ { ++ Elf_Internal_Shdr *symtab_hdr; ++ asection *section; ++ Elf_Internal_Sym *local_syms; ++ ++ /* We'll need the symbol table in a second. */ ++ symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; ++ if (symtab_hdr->sh_info == 0) ++ continue; ++ ++ local_syms = htab->all_local_syms[bfd_indx]; ++ ++ /* Walk over each section attached to the input bfd. */ ++ for (section = input_bfd->sections; ++ section != NULL; ++ section = section->next) ++ { ++ Elf_Internal_Rela *internal_relocs, *irelaend, *irela; ++ ++ /* If there aren't any relocs, then there's nothing more ++ to do. */ ++ if ((section->flags & SEC_RELOC) == 0 ++ || section->reloc_count == 0) ++ continue; ++ ++ /* If this section is a link-once section that will be ++ discarded, then don't create any stubs. */ ++ if (section->output_section == NULL ++ || section->output_section->owner != output_bfd) ++ continue; ++ ++ /* Get the relocs. */ ++ internal_relocs ++ = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL, ++ info->keep_memory); ++ if (internal_relocs == NULL) ++ goto error_ret_free_local; ++ ++ /* Now examine each relocation. */ ++ irela = internal_relocs; ++ irelaend = irela + section->reloc_count; ++ for (; irela < irelaend; irela++) ++ { ++ unsigned int r_type, r_indx; ++ struct elf32_avr_stub_hash_entry *hsh; ++ asection *sym_sec; ++ bfd_vma sym_value; ++ bfd_vma destination; ++ struct elf_link_hash_entry *hh; ++ char *stub_name; ++ ++ r_type = ELF32_R_TYPE (irela->r_info); ++ r_indx = ELF32_R_SYM (irela->r_info); ++ ++ /* Only look for 16 bit GS relocs. No other reloc will need a ++ stub. */ ++ if (!((r_type == R_AVR_16_PM) ++ || (r_type == R_AVR_LO8_LDI_GS) ++ || (r_type == R_AVR_HI8_LDI_GS))) ++ continue; ++ ++ /* Now determine the call target, its name, value, ++ section. */ ++ sym_sec = NULL; ++ sym_value = 0; ++ destination = 0; ++ hh = NULL; ++ if (r_indx < symtab_hdr->sh_info) ++ { ++ /* It's a local symbol. */ ++ Elf_Internal_Sym *sym; ++ Elf_Internal_Shdr *hdr; ++ ++ sym = local_syms + r_indx; ++ hdr = elf_elfsections (input_bfd)[sym->st_shndx]; ++ sym_sec = hdr->bfd_section; ++ if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) ++ sym_value = sym->st_value; ++ destination = (sym_value + irela->r_addend ++ + sym_sec->output_offset ++ + sym_sec->output_section->vma); ++ } ++ else ++ { ++ /* It's an external symbol. */ ++ int e_indx; ++ ++ e_indx = r_indx - symtab_hdr->sh_info; ++ hh = elf_sym_hashes (input_bfd)[e_indx]; ++ ++ while (hh->root.type == bfd_link_hash_indirect ++ || hh->root.type == bfd_link_hash_warning) ++ hh = (struct elf_link_hash_entry *) ++ (hh->root.u.i.link); ++ ++ if (hh->root.type == bfd_link_hash_defined ++ || hh->root.type == bfd_link_hash_defweak) ++ { ++ sym_sec = hh->root.u.def.section; ++ sym_value = hh->root.u.def.value; ++ if (sym_sec->output_section != NULL) ++ destination = (sym_value + irela->r_addend ++ + sym_sec->output_offset ++ + sym_sec->output_section->vma); ++ } ++ else if (hh->root.type == bfd_link_hash_undefweak) ++ { ++ if (! info->shared) ++ continue; ++ } ++ else if (hh->root.type == bfd_link_hash_undefined) ++ { ++ if (! (info->unresolved_syms_in_objects == RM_IGNORE ++ && (ELF_ST_VISIBILITY (hh->other) ++ == STV_DEFAULT))) ++ continue; ++ } ++ else ++ { ++ bfd_set_error (bfd_error_bad_value); ++ ++ error_ret_free_internal: ++ if (elf_section_data (section)->relocs == NULL) ++ free (internal_relocs); ++ goto error_ret_free_local; ++ } ++ } ++ ++ if (! avr_stub_is_required_for_16_bit_reloc ++ (destination - htab->vector_base)) ++ { ++ if (!is_prealloc_run) ++ /* We are having a reloc that does't need a stub. */ ++ continue; ++ ++ /* We don't right now know if a stub will be needed. ++ Let's rather be on the safe side. */ ++ } ++ ++ /* Get the name of this stub. */ ++ stub_name = avr_stub_name (sym_sec, sym_value, irela); ++ ++ if (!stub_name) ++ goto error_ret_free_internal; ++ ++ ++ hsh = avr_stub_hash_lookup (&htab->bstab, ++ stub_name, ++ FALSE, FALSE); ++ if (hsh != NULL) ++ { ++ /* The proper stub has already been created. Mark it ++ to be used and write the possibly changed destination ++ value. */ ++ hsh->is_actually_needed = TRUE; ++ hsh->target_value = destination; ++ free (stub_name); ++ continue; ++ } ++ ++ hsh = avr_add_stub (stub_name, htab); ++ if (hsh == NULL) ++ { ++ free (stub_name); ++ goto error_ret_free_internal; ++ } ++ ++ hsh->is_actually_needed = TRUE; ++ hsh->target_value = destination; ++ ++ if (debug_stubs) ++ printf ("Adding stub with destination 0x%x to the" ++ " hash table.\n", (unsigned int) destination); ++ if (debug_stubs) ++ printf ("(Pre-Alloc run: %i)\n", is_prealloc_run); ++ ++ stub_changed = TRUE; ++ } ++ ++ /* We're done with the internal relocs, free them. */ ++ if (elf_section_data (section)->relocs == NULL) ++ free (internal_relocs); ++ } ++ } ++ ++ /* Re-Calculate the number of needed stubs. */ ++ htab->stub_sec->size = 0; ++ bfd_hash_traverse (&htab->bstab, avr_size_one_stub, htab); ++ ++ if (!stub_changed) ++ break; ++ ++ stub_changed = FALSE; ++ } ++ ++ free (htab->all_local_syms); ++ return TRUE; ++ ++ error_ret_free_local: ++ free (htab->all_local_syms); ++ return FALSE; ++} ++ ++ ++/* Build all the stubs associated with the current output file. The ++ stubs are kept in a hash table attached to the main linker hash ++ table. We also set up the .plt entries for statically linked PIC ++ functions here. This function is called via hppaelf_finish in the ++ linker. */ ++ ++bfd_boolean ++elf32_avr_build_stubs (struct bfd_link_info *info) ++{ ++ asection *stub_sec; ++ struct bfd_hash_table *table; ++ struct elf32_avr_link_hash_table *htab; ++ bfd_size_type total_size = 0; ++ ++ htab = avr_link_hash_table (info); ++ ++ /* In case that there were several stub sections: */ ++ for (stub_sec = htab->stub_bfd->sections; ++ stub_sec != NULL; ++ stub_sec = stub_sec->next) ++ { ++ bfd_size_type size; ++ ++ /* Allocate memory to hold the linker stubs. */ ++ size = stub_sec->size; ++ total_size += size; ++ ++ stub_sec->contents = bfd_zalloc (htab->stub_bfd, size); ++ if (stub_sec->contents == NULL && size != 0) ++ return FALSE; ++ stub_sec->size = 0; ++ } ++ ++ /* Allocate memory for the adress mapping table. */ ++ htab->amt_entry_cnt = 0; ++ htab->amt_max_entry_cnt = total_size / 4; ++ htab->amt_stub_offsets = bfd_malloc (sizeof (bfd_vma) ++ * htab->amt_max_entry_cnt); ++ htab->amt_destination_addr = bfd_malloc (sizeof (bfd_vma) ++ * htab->amt_max_entry_cnt ); ++ ++ if (debug_stubs) ++ printf ("Allocating %i entries in the AMT\n", htab->amt_max_entry_cnt); ++ ++ /* Build the stubs as directed by the stub hash table. */ ++ table = &htab->bstab; ++ bfd_hash_traverse (table, avr_build_one_stub, info); ++ ++ if (debug_stubs) ++ printf ("Final Stub section Size: %i\n", (int) htab->stub_sec->size); ++ ++ return TRUE; ++} ++ + #define ELF_ARCH bfd_arch_avr + #define ELF_MACHINE_CODE EM_AVR + #define ELF_MACHINE_ALT1 EM_AVR_OLD +@@ -1960,6 +2925,9 @@ + #define TARGET_LITTLE_SYM bfd_elf32_avr_vec + #define TARGET_LITTLE_NAME "elf32-avr" + ++#define bfd_elf32_bfd_link_hash_table_create elf32_avr_link_hash_table_create ++#define bfd_elf32_bfd_link_hash_table_free elf32_avr_link_hash_table_free ++ + #define elf_info_to_howto avr_info_to_howto_rela + #define elf_info_to_howto_rel NULL + #define elf_backend_relocate_section elf32_avr_relocate_section +diff -Nur bfd/elf32-avr.h bfd/elf32-avr.h +--- bfd/elf32-avr.h 1970-01-01 01:00:00.000000000 +0100 ++++ bfd/elf32-avr.h 2006-08-28 20:01:10.805090951 +0200 +@@ -0,0 +1,38 @@ ++/* AVR-specific support for 32-bit ELF. ++ Copyright 2006 Free Software Foundation, Inc. ++ ++ Written by Bjoern Haase <bjoern.m.haase@web.de> ++ ++ This file is part of BFD, the Binary File Descriptor library. ++ ++ This program is free software; you can redistribute it and/or modify ++ it under the terms of the GNU General Public License as published by ++ the Free Software Foundation; either version 2 of the License, or ++ (at your option) any later version. ++ ++ This program is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ GNU General Public License for more details. ++ ++ You should have received a copy of the GNU General Public License ++ along with this program; if not, write to the Free Software ++ Foundation, Inc., 51 Franklin Street - Fifth Floor, ++ Boston, MA 02110-1301, USA. */ ++ ++ ++/* These four functions will be called from the ld back-end. */ ++ ++extern void ++elf32_avr_setup_params (struct bfd_link_info *, bfd *, asection *, ++ bfd_boolean, bfd_boolean, bfd_boolean, ++ bfd_vma, bfd_boolean); ++ ++extern int ++elf32_avr_setup_section_lists (bfd *, struct bfd_link_info *); ++ ++extern bfd_boolean ++elf32_avr_size_stubs (bfd *, struct bfd_link_info *, bfd_boolean); ++ ++extern bfd_boolean ++elf32_avr_build_stubs (struct bfd_link_info *); +diff -Nur bfd/libbfd.h bfd/libbfd.h +--- bfd/libbfd.h 2006-03-26 01:38:42.000000000 +0100 ++++ bfd/libbfd.h 2006-08-28 20:02:16.912297073 +0200 +@@ -1509,7 +1509,9 @@ + "BFD_RELOC_AVR_HH8_LDI_NEG", + "BFD_RELOC_AVR_MS8_LDI_NEG", + "BFD_RELOC_AVR_LO8_LDI_PM", ++ "BFD_RELOC_AVR_LO8_LDI_GS", + "BFD_RELOC_AVR_HI8_LDI_PM", ++ "BFD_RELOC_AVR_HI8_LDI_GS", + "BFD_RELOC_AVR_HH8_LDI_PM", + "BFD_RELOC_AVR_LO8_LDI_PM_NEG", + "BFD_RELOC_AVR_HI8_LDI_PM_NEG", +diff -Nur bfd/reloc.c bfd/reloc.c +--- bfd/reloc.c 2006-03-26 01:38:42.000000000 +0100 ++++ bfd/reloc.c 2006-08-28 20:02:16.936295332 +0200 +@@ -3666,11 +3666,25 @@ + This is a 16 bit reloc for the AVR that stores 8 bit value (usually + command address) into 8 bit immediate value of LDI insn. + ENUM ++ BFD_RELOC_AVR_LO8_LDI_GS ++ENUMDOC ++ This is a 16 bit reloc for the AVR that stores 8 bit value ++ (command address) into 8 bit immediate value of LDI insn. If the address ++ is beyond the 128k boundary, the linker inserts a jump stub for this reloc ++ in the lower 128k. ++ENUM + BFD_RELOC_AVR_HI8_LDI_PM + ENUMDOC + This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit + of command address) into 8 bit immediate value of LDI insn. + ENUM ++ BFD_RELOC_AVR_HI8_LDI_GS ++ENUMDOC ++ This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit ++ of command address) into 8 bit immediate value of LDI insn. If the address ++ is beyond the 128k boundary, the linker inserts a jump stub for this reloc ++ below 128k. ++ENUM + BFD_RELOC_AVR_HH8_LDI_PM + ENUMDOC + This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit +diff -Nur gas/config/tc-avr.c gas/config/tc-avr.c +--- gas/config/tc-avr.c 2006-04-07 17:18:08.000000000 +0200 ++++ gas/config/tc-avr.c 2006-08-28 20:02:16.948294462 +0200 +@@ -63,89 +63,92 @@ + + static struct mcu_type_s mcu_types[] = + { +- {"avr1", AVR_ISA_TINY1, bfd_mach_avr1}, +- {"avr2", AVR_ISA_TINY2, bfd_mach_avr2}, +- {"avr3", AVR_ISA_M103, bfd_mach_avr3}, +- {"avr4", AVR_ISA_M8, bfd_mach_avr4}, +- {"avr5", AVR_ISA_ALL, bfd_mach_avr5}, +- {"at90s1200", AVR_ISA_1200, bfd_mach_avr1}, +- {"attiny10", AVR_ISA_TINY1, bfd_mach_avr1}, /* XXX -> tn11 */ +- {"attiny11", AVR_ISA_TINY1, bfd_mach_avr1}, +- {"attiny12", AVR_ISA_TINY1, bfd_mach_avr1}, +- {"attiny15", AVR_ISA_TINY1, bfd_mach_avr1}, +- {"attiny28", AVR_ISA_TINY1, bfd_mach_avr1}, +- {"at90s2313", AVR_ISA_2xxx, bfd_mach_avr2}, +- {"at90s2323", AVR_ISA_2xxx, bfd_mach_avr2}, +- {"at90s2333", AVR_ISA_2xxx, bfd_mach_avr2}, /* XXX -> 4433 */ +- {"at90s2343", AVR_ISA_2xxx, bfd_mach_avr2}, +- {"attiny22", AVR_ISA_2xxx, bfd_mach_avr2}, /* XXX -> 2343 */ +- {"attiny26", AVR_ISA_2xxx, bfd_mach_avr2}, +- {"at90s4433", AVR_ISA_2xxx, bfd_mach_avr2}, +- {"at90s4414", AVR_ISA_2xxx, bfd_mach_avr2}, /* XXX -> 8515 */ +- {"at90s4434", AVR_ISA_2xxx, bfd_mach_avr2}, /* XXX -> 8535 */ +- {"at90s8515", AVR_ISA_2xxx, bfd_mach_avr2}, +- {"at90s8535", AVR_ISA_2xxx, bfd_mach_avr2}, +- {"at90c8534", AVR_ISA_2xxx, bfd_mach_avr2}, +- {"at86rf401", AVR_ISA_2xxx, bfd_mach_avr2}, +- {"attiny13", AVR_ISA_TINY2, bfd_mach_avr2}, +- {"attiny2313",AVR_ISA_TINY2, bfd_mach_avr2}, +- {"attiny261", AVR_ISA_TINY2, bfd_mach_avr2}, +- {"attiny461", AVR_ISA_TINY2, bfd_mach_avr2}, +- {"attiny861", AVR_ISA_TINY2, bfd_mach_avr2}, +- {"attiny24", AVR_ISA_TINY2, bfd_mach_avr2}, +- {"attiny44", AVR_ISA_TINY2, bfd_mach_avr2}, +- {"attiny84", AVR_ISA_TINY2, bfd_mach_avr2}, +- {"attiny25", AVR_ISA_TINY2, bfd_mach_avr2}, +- {"attiny45", AVR_ISA_TINY2, bfd_mach_avr2}, +- {"attiny85", AVR_ISA_TINY2, bfd_mach_avr2}, +- {"atmega603", AVR_ISA_M603, bfd_mach_avr3}, /* XXX -> m103 */ +- {"atmega103", AVR_ISA_M103, bfd_mach_avr3}, +- {"at43usb320",AVR_ISA_M103, bfd_mach_avr3}, +- {"at43usb355",AVR_ISA_M603, bfd_mach_avr3}, +- {"at76c711", AVR_ISA_M603, bfd_mach_avr3}, +- {"atmega48", AVR_ISA_PWMx, bfd_mach_avr4}, +- {"atmega8", AVR_ISA_M8, bfd_mach_avr4}, +- {"atmega83", AVR_ISA_M8, bfd_mach_avr4}, /* XXX -> m8535 */ +- {"atmega85", AVR_ISA_M8, bfd_mach_avr4}, /* XXX -> m8 */ +- {"atmega88", AVR_ISA_PWMx, bfd_mach_avr4}, +- {"atmega8515",AVR_ISA_M8, bfd_mach_avr4}, +- {"atmega8535",AVR_ISA_M8, bfd_mach_avr4}, +- {"at90pwm2", AVR_ISA_PWMx, bfd_mach_avr4}, +- {"at90pwm3", AVR_ISA_PWMx, bfd_mach_avr4}, +- {"atmega16", AVR_ISA_M323, bfd_mach_avr5}, +- {"atmega161", AVR_ISA_M161, bfd_mach_avr5}, +- {"atmega162", AVR_ISA_M323, bfd_mach_avr5}, +- {"atmega163", AVR_ISA_M161, bfd_mach_avr5}, +- {"atmega164", AVR_ISA_M323, bfd_mach_avr5}, +- {"atmega165", AVR_ISA_M323, bfd_mach_avr5}, +- {"atmega168", AVR_ISA_M323, bfd_mach_avr5}, +- {"atmega169", AVR_ISA_M323, bfd_mach_avr5}, +- {"atmega32", AVR_ISA_M323, bfd_mach_avr5}, +- {"atmega323", AVR_ISA_M323, bfd_mach_avr5}, +- {"atmega324", AVR_ISA_M323, bfd_mach_avr5}, +- {"atmega325", AVR_ISA_M323, bfd_mach_avr5}, +- {"atmega329", AVR_ISA_M323, bfd_mach_avr5}, +- {"atmega3250",AVR_ISA_M323, bfd_mach_avr5}, +- {"atmega3290",AVR_ISA_M323, bfd_mach_avr5}, +- {"atmega406", AVR_ISA_M323, bfd_mach_avr5}, +- {"atmega64", AVR_ISA_M323, bfd_mach_avr5}, +- {"atmega640", AVR_ISA_M323, bfd_mach_avr5}, +- {"atmega644", AVR_ISA_M323, bfd_mach_avr5}, +- {"atmega128", AVR_ISA_M128, bfd_mach_avr5}, +- {"atmega1280",AVR_ISA_M128, bfd_mach_avr5}, +- {"atmega1281",AVR_ISA_M128, bfd_mach_avr5}, +- {"atmega645", AVR_ISA_M323, bfd_mach_avr5}, +- {"atmega649", AVR_ISA_M323, bfd_mach_avr5}, +- {"atmega6450",AVR_ISA_M323, bfd_mach_avr5}, +- {"atmega6490",AVR_ISA_M323, bfd_mach_avr5}, +- {"at90can32" ,AVR_ISA_M323, bfd_mach_avr5}, +- {"at90can64" ,AVR_ISA_M323, bfd_mach_avr5}, +- {"at90can128",AVR_ISA_M128, bfd_mach_avr5}, ++ {"avr1", AVR_ISA_TINY1, bfd_mach_avr1}, ++ {"avr2", AVR_ISA_TINY2, bfd_mach_avr2}, ++ {"avr3", AVR_ISA_M103, bfd_mach_avr3}, ++ {"avr4", AVR_ISA_M8, bfd_mach_avr4}, ++ {"avr5", AVR_ISA_ALL, bfd_mach_avr5}, ++ {"avr6", AVR_ISA_ALL, bfd_mach_avr6}, ++ {"at90s1200", AVR_ISA_1200, bfd_mach_avr1}, ++ {"attiny10", AVR_ISA_TINY1, bfd_mach_avr1}, /* XXX -> tn11 */ ++ {"attiny11", AVR_ISA_TINY1, bfd_mach_avr1}, ++ {"attiny12", AVR_ISA_TINY1, bfd_mach_avr1}, ++ {"attiny15", AVR_ISA_TINY1, bfd_mach_avr1}, ++ {"attiny28", AVR_ISA_TINY1, bfd_mach_avr1}, ++ {"at90s2313", AVR_ISA_2xxx, bfd_mach_avr2}, ++ {"at90s2323", AVR_ISA_2xxx, bfd_mach_avr2}, ++ {"at90s2333", AVR_ISA_2xxx, bfd_mach_avr2}, /* XXX -> 4433 */ ++ {"at90s2343", AVR_ISA_2xxx, bfd_mach_avr2}, ++ {"attiny22", AVR_ISA_2xxx, bfd_mach_avr2}, /* XXX -> 2343 */ ++ {"attiny26", AVR_ISA_2xxx, bfd_mach_avr2}, ++ {"at90s4433", AVR_ISA_2xxx, bfd_mach_avr2}, ++ {"at90s4414", AVR_ISA_2xxx, bfd_mach_avr2}, /* XXX -> 8515 */ ++ {"at90s4434", AVR_ISA_2xxx, bfd_mach_avr2}, /* XXX -> 8535 */ ++ {"at90s8515", AVR_ISA_2xxx, bfd_mach_avr2}, ++ {"at90s8535", AVR_ISA_2xxx, bfd_mach_avr2}, ++ {"at90c8534", AVR_ISA_2xxx, bfd_mach_avr2}, ++ {"at86rf401", AVR_ISA_2xxx, bfd_mach_avr2}, ++ {"attiny13", AVR_ISA_TINY2, bfd_mach_avr2}, ++ {"attiny2313", AVR_ISA_TINY2, bfd_mach_avr2}, ++ {"attiny261", AVR_ISA_TINY2, bfd_mach_avr2}, ++ {"attiny461", AVR_ISA_TINY2, bfd_mach_avr2}, ++ {"attiny861", AVR_ISA_TINY2, bfd_mach_avr2}, ++ {"attiny24", AVR_ISA_TINY2, bfd_mach_avr2}, ++ {"attiny44", AVR_ISA_TINY2, bfd_mach_avr2}, ++ {"attiny84", AVR_ISA_TINY2, bfd_mach_avr2}, ++ {"attiny25", AVR_ISA_TINY2, bfd_mach_avr2}, ++ {"attiny45", AVR_ISA_TINY2, bfd_mach_avr2}, ++ {"attiny85", AVR_ISA_TINY2, bfd_mach_avr2}, ++ {"atmega603", AVR_ISA_M603, bfd_mach_avr3}, /* XXX -> m103 */ ++ {"atmega103", AVR_ISA_M103, bfd_mach_avr3}, ++ {"at43usb320", AVR_ISA_M103, bfd_mach_avr3}, ++ {"at43usb355", AVR_ISA_M603, bfd_mach_avr3}, ++ {"at76c711", AVR_ISA_M603, bfd_mach_avr3}, ++ {"atmega48", AVR_ISA_PWMx, bfd_mach_avr4}, ++ {"atmega8", AVR_ISA_M8, bfd_mach_avr4}, ++ {"atmega83", AVR_ISA_M8, bfd_mach_avr4}, /* XXX -> m8535 */ ++ {"atmega85", AVR_ISA_M8, bfd_mach_avr4}, /* XXX -> m8 */ ++ {"atmega88", AVR_ISA_PWMx, bfd_mach_avr4}, ++ {"atmega8515", AVR_ISA_M8, bfd_mach_avr4}, ++ {"atmega8535", AVR_ISA_M8, bfd_mach_avr4}, ++ {"at90pwm2", AVR_ISA_PWMx, bfd_mach_avr4}, ++ {"at90pwm3", AVR_ISA_PWMx, bfd_mach_avr4}, ++ {"atmega16", AVR_ISA_M323, bfd_mach_avr5}, ++ {"atmega161", AVR_ISA_M161, bfd_mach_avr5}, ++ {"atmega162", AVR_ISA_M323, bfd_mach_avr5}, ++ {"atmega163", AVR_ISA_M161, bfd_mach_avr5}, ++ {"atmega164", AVR_ISA_M323, bfd_mach_avr5}, ++ {"atmega165", AVR_ISA_M323, bfd_mach_avr5}, ++ {"atmega168", AVR_ISA_M323, bfd_mach_avr5}, ++ {"atmega169", AVR_ISA_M323, bfd_mach_avr5}, ++ {"atmega32", AVR_ISA_M323, bfd_mach_avr5}, ++ {"atmega323", AVR_ISA_M323, bfd_mach_avr5}, ++ {"atmega324", AVR_ISA_M323, bfd_mach_avr5}, ++ {"atmega325", AVR_ISA_M323, bfd_mach_avr5}, ++ {"atmega329", AVR_ISA_M323, bfd_mach_avr5}, ++ {"atmega3250", AVR_ISA_M323, bfd_mach_avr5}, ++ {"atmega3290", AVR_ISA_M323, bfd_mach_avr5}, ++ {"atmega406", AVR_ISA_M323, bfd_mach_avr5}, ++ {"atmega64", AVR_ISA_M323, bfd_mach_avr5}, ++ {"atmega640", AVR_ISA_M323, bfd_mach_avr5}, ++ {"atmega644", AVR_ISA_M323, bfd_mach_avr5}, ++ {"atmega128", AVR_ISA_M128, bfd_mach_avr5}, ++ {"atmega1280", AVR_ISA_M128, bfd_mach_avr5}, ++ {"atmega1281", AVR_ISA_M128, bfd_mach_avr5}, ++ {"atmega645", AVR_ISA_M323, bfd_mach_avr5}, ++ {"atmega649", AVR_ISA_M323, bfd_mach_avr5}, ++ {"atmega6450", AVR_ISA_M323, bfd_mach_avr5}, ++ {"atmega6490", AVR_ISA_M323, bfd_mach_avr5}, ++ {"at90can32" , AVR_ISA_M323, bfd_mach_avr5}, ++ {"at90can64" , AVR_ISA_M323, bfd_mach_avr5}, ++ {"at90can128", AVR_ISA_M128, bfd_mach_avr5}, + {"at90usb646", AVR_ISA_M323, bfd_mach_avr5}, + {"at90usb647", AVR_ISA_M323, bfd_mach_avr5}, + {"at90usb1286",AVR_ISA_M128, bfd_mach_avr5}, + {"at90usb1287",AVR_ISA_M128, bfd_mach_avr5}, +- {"at94k", AVR_ISA_94K, bfd_mach_avr5}, ++ {"at94k", AVR_ISA_94K, bfd_mach_avr5}, ++ {"atmega2560", AVR_ISA_ALL, bfd_mach_avr6}, ++ {"atmega2561", AVR_ISA_ALL, bfd_mach_avr6}, + {NULL, 0, 0} + }; + +@@ -512,7 +515,7 @@ + if (exp->X_op == O_constant) + { + int x = exp->X_add_number; +- ++ + if (x < -255 || x > 255) + as_warn (_("constant out of 8-bit range: %d"), x); + } +@@ -544,6 +547,8 @@ + char *tmp; + char op[8]; + int mod; ++ int linker_stubs_should_be_generated = 0; ++ + tmp = str; + + str = extract_word (str, op, sizeof (op)); +@@ -551,7 +556,7 @@ + if (op[0]) + { + mod_index m; +- ++ + m.ptr = hash_find (avr_mod_hash, op); + mod = m.index; + +@@ -564,11 +569,14 @@ + + if (*str == '(') + { ++ bfd_reloc_code_real_type reloc_to_return; + int neg_p = 0; + + ++str; + + if (strncmp ("pm(", str, 3) == 0 ++ || strncmp ("gs(",str,3) == 0 ++ || strncmp ("-(gs(",str,5) == 0 + || strncmp ("-(pm(", str, 5) == 0) + { + if (HAVE_PM_P (mod)) +@@ -579,6 +587,9 @@ + else + as_bad (_("illegal expression")); + ++ if (str[0] == 'g' || str[2] == 'g') ++ linker_stubs_should_be_generated = 1; ++ + if (*str == '-') + { + neg_p = 1; +@@ -610,7 +621,24 @@ + } + while (closes--); + +- return neg_p ? EXP_MOD_NEG_RELOC (mod) : EXP_MOD_RELOC (mod); ++ reloc_to_return = ++ neg_p ? EXP_MOD_NEG_RELOC (mod) : EXP_MOD_RELOC (mod); ++ if (linker_stubs_should_be_generated) ++ { ++ switch (reloc_to_return) ++ { ++ case BFD_RELOC_AVR_LO8_LDI_PM: ++ reloc_to_return = BFD_RELOC_AVR_LO8_LDI_GS; ++ break; ++ case BFD_RELOC_AVR_HI8_LDI_PM: ++ reloc_to_return = BFD_RELOC_AVR_HI8_LDI_GS; ++ break; ++ ++ default: ++ break; /* as_warn (_("expression dangerous with linker stubs")); *//* Bjoern agreed. :) */ ++ } ++ } ++ return reloc_to_return; + } + } + } +@@ -1227,7 +1255,7 @@ + return NULL; + } + +- /* We are dealing with two symbols defined in the same section. ++ /* We are dealing with two symbols defined in the same section. + Let us fix-up them here. */ + value += S_GET_VALUE (fixp->fx_addsy); + value -= S_GET_VALUE (fixp->fx_subsy); +@@ -1310,7 +1338,8 @@ + static int exp_mod_pm = 0; + + /* Parse special CONS expression: pm (expression) +- which is used for addressing to a program memory. ++ or alternatively: gs (expression). ++ These are used for addressing program memory. + Relocation: BFD_RELOC_AVR_16_PM. */ + + void +@@ -1324,10 +1353,13 @@ + + if (nbytes == 2) + { +- char *pm_name = "pm"; +- int len = strlen (pm_name); ++ char *pm_name1 = "pm"; ++ char *pm_name2 = "gs"; ++ int len = strlen (pm_name1); ++ /* len must be the same for both pm identifiers. */ + +- if (strncasecmp (input_line_pointer, pm_name, len) == 0) ++ if (strncasecmp (input_line_pointer, pm_name1, len) == 0 ++ || strncasecmp (input_line_pointer, pm_name2, len) == 0) + { + input_line_pointer = skip_space (input_line_pointer + len); + +diff -Nur gas/config/tc-avr.h gas/config/tc-avr.h +--- gas/config/tc-avr.h 2006-05-17 18:04:30.000000000 +0200 ++++ gas/config/tc-avr.h 2006-08-28 20:02:16.952294172 +0200 +@@ -125,16 +125,21 @@ + We will need them in case that we want to do linker relaxation. + We could in principle keep these fixups in gas when not relaxing. + However, there is no serious performance penilty when making the linker +- make the fixup work. */ +-#define TC_VALIDATE_FIX(FIXP,SEG,SKIP) \ +- if ( (FIXP->fx_r_type == BFD_RELOC_AVR_7_PCREL \ +- || FIXP->fx_r_type == BFD_RELOC_AVR_13_PCREL \ +- || FIXP->fx_r_type == BFD_RELOC_AVR_LO8_LDI_PM \ +- || FIXP->fx_r_type == BFD_RELOC_AVR_HI8_LDI_PM \ +- || FIXP->fx_r_type == BFD_RELOC_AVR_HH8_LDI_PM \ +- || FIXP->fx_r_type == BFD_RELOC_AVR_16_PM) \ +- && (FIXP->fx_addsy)) \ +- { \ +- goto SKIP; \ ++ make the fixup work. Check also that fx_addsy is not NULL, in order to make ++ sure that the fixup refers to some sort of lable. */ ++#define TC_VALIDATE_FIX(FIXP,SEG,SKIP) \ ++ if ( (FIXP->fx_r_type == BFD_RELOC_AVR_7_PCREL \ ++ || FIXP->fx_r_type == BFD_RELOC_AVR_13_PCREL \ ++ || FIXP->fx_r_type == BFD_RELOC_AVR_LO8_LDI_PM \ ++ || FIXP->fx_r_type == BFD_RELOC_AVR_LO8_LDI_GS \ ++ || FIXP->fx_r_type == BFD_RELOC_AVR_HI8_LDI_PM \ ++ || FIXP->fx_r_type == BFD_RELOC_AVR_HI8_LDI_GS \ ++ || FIXP->fx_r_type == BFD_RELOC_AVR_HH8_LDI_PM \ ++ || FIXP->fx_r_type == BFD_RELOC_AVR_LO8_LDI_PM_NEG \ ++ || FIXP->fx_r_type == BFD_RELOC_AVR_HI8_LDI_PM_NEG \ ++ || FIXP->fx_r_type == BFD_RELOC_AVR_HH8_LDI_PM_NEG \ ++ || FIXP->fx_r_type == BFD_RELOC_AVR_16_PM) \ ++ && (FIXP->fx_addsy)) \ ++ { \ ++ goto SKIP; \ + } +- +diff -Nur include/elf/avr.h include/elf/avr.h +--- include/elf/avr.h 2006-03-03 16:25:30.000000000 +0100 ++++ include/elf/avr.h 2006-08-28 20:02:16.998290837 +0200 +@@ -1,5 +1,5 @@ + /* AVR ELF support for BFD. +- Copyright 1999, 2000, 2004 Free Software Foundation, Inc. ++ Copyright 1999, 2000, 2004, 2006 Free Software Foundation, Inc. + Contributed by Denis Chertykov <denisc@overta.ru> + + This file is part of BFD, the Binary File Descriptor library. +@@ -35,6 +35,7 @@ + #define E_AVR_MACH_AVR3 3 + #define E_AVR_MACH_AVR4 4 + #define E_AVR_MACH_AVR5 5 ++#define E_AVR_MACH_AVR6 6 + + /* Relocations. */ + START_RELOC_NUMBERS (elf_avr_reloc_type) +@@ -62,6 +63,8 @@ + RELOC_NUMBER (R_AVR_6_ADIW, 21) + RELOC_NUMBER (R_AVR_MS8_LDI, 22) + RELOC_NUMBER (R_AVR_MS8_LDI_NEG, 23) ++ RELOC_NUMBER (R_AVR_LO8_LDI_GS, 24) ++ RELOC_NUMBER (R_AVR_HI8_LDI_GS, 25) + END_RELOC_NUMBERS (R_AVR_max) + + #endif /* _ELF_AVR_H */ +diff -Nur include/elf/ChangeLog include/elf/ChangeLog +--- include/elf/ChangeLog 2006-03-22 10:28:12.000000000 +0100 ++++ include/elf/ChangeLog 2006-08-28 20:02:17.001290619 +0200 +@@ -1,3 +1,7 @@ ++2006-05-24 Bjoern Haase <bjoern.m.haase@web.de> ++ ++ * avr.h: Add E_AVR_MACH_AVR6, R_AVR_LO8_LDI_GS and R_AVR_HI8_LDI_GS. ++ + 2006-03-22 Richard Sandiford <richard@codesourcery.com> + Daniel Jacobowitz <dan@codesourcery.com> + Phil Edwards <phil@codesourcery.com> +diff -Nur ld/configure.tgt ld/configure.tgt +--- ld/configure.tgt 2006-04-05 14:41:57.000000000 +0200 ++++ ld/configure.tgt 2006-08-28 20:02:17.029288589 +0200 +@@ -81,7 +81,7 @@ + xscale-*-elf) targ_emul=armelf + ;; + avr-*-*) targ_emul=avr2 +- targ_extra_emuls="avr1 avr3 avr4 avr5" ++ targ_extra_emuls="avr1 avr3 avr4 avr5 avr6" + ;; + bfin-*-elf) targ_emul=elf32bfin; targ_extra_emuls="elf32bfinfd" ;; + bfin-*-uclinux*) targ_emul=elf32bfin; targ_extra_emuls="elf32bfinfd" ;; +diff -Nur ld/emulparams/avr1.sh ld/emulparams/avr1.sh +--- ld/emulparams/avr1.sh 2002-05-16 21:51:08.000000000 +0200 ++++ ld/emulparams/avr1.sh 2006-08-28 20:02:17.031288444 +0200 +@@ -4,7 +4,8 @@ + OUTPUT_FORMAT="elf32-avr" + MAXPAGESIZE=1 + EMBEDDED=yes +-TEMPLATE_NAME=generic ++TEMPLATE_NAME=elf32 + + TEXT_LENGTH=8K + DATA_LENGTH=0 ++EXTRA_EM_FILE=avrelf +diff -Nur ld/emulparams/avr2.sh ld/emulparams/avr2.sh +--- ld/emulparams/avr2.sh 2002-05-16 21:51:08.000000000 +0200 ++++ ld/emulparams/avr2.sh 2006-08-28 20:02:17.033288299 +0200 +@@ -4,7 +4,8 @@ + OUTPUT_FORMAT="elf32-avr" + MAXPAGESIZE=1 + EMBEDDED=yes +-TEMPLATE_NAME=generic ++TEMPLATE_NAME=elf32 + + TEXT_LENGTH=8K + DATA_LENGTH=0xffa0 ++EXTRA_EM_FILE=avrelf +diff -Nur ld/emulparams/avr3.sh ld/emulparams/avr3.sh +--- ld/emulparams/avr3.sh 2002-05-16 21:51:08.000000000 +0200 ++++ ld/emulparams/avr3.sh 2006-08-28 20:02:17.036288081 +0200 +@@ -4,7 +4,8 @@ + OUTPUT_FORMAT="elf32-avr" + MAXPAGESIZE=1 + EMBEDDED=yes +-TEMPLATE_NAME=generic ++TEMPLATE_NAME=elf32 + + TEXT_LENGTH=128K + DATA_LENGTH=0xffa0 ++EXTRA_EM_FILE=avrelf +diff -Nur ld/emulparams/avr4.sh ld/emulparams/avr4.sh +--- ld/emulparams/avr4.sh 2002-05-16 21:51:08.000000000 +0200 ++++ ld/emulparams/avr4.sh 2006-08-28 20:02:17.038287936 +0200 +@@ -4,7 +4,8 @@ + OUTPUT_FORMAT="elf32-avr" + MAXPAGESIZE=1 + EMBEDDED=yes +-TEMPLATE_NAME=generic ++TEMPLATE_NAME=elf32 + + TEXT_LENGTH=8K + DATA_LENGTH=0xffa0 ++EXTRA_EM_FILE=avrelf +diff -Nur ld/emulparams/avr5.sh ld/emulparams/avr5.sh +--- ld/emulparams/avr5.sh 2002-05-16 21:51:08.000000000 +0200 ++++ ld/emulparams/avr5.sh 2006-08-28 20:02:17.040287791 +0200 +@@ -4,7 +4,8 @@ + OUTPUT_FORMAT="elf32-avr" + MAXPAGESIZE=1 + EMBEDDED=yes +-TEMPLATE_NAME=generic ++TEMPLATE_NAME=elf32 + + TEXT_LENGTH=128K + DATA_LENGTH=0xffa0 ++EXTRA_EM_FILE=avrelf +diff -Nur ld/emulparams/avr6.sh ld/emulparams/avr6.sh +--- ld/emulparams/avr6.sh 1970-01-01 01:00:00.000000000 +0100 ++++ ld/emulparams/avr6.sh 2006-08-28 20:02:17.043287574 +0200 +@@ -0,0 +1,11 @@ ++ARCH=avr:6 ++MACHINE= ++SCRIPT_NAME=avr ++OUTPUT_FORMAT="elf32-avr" ++MAXPAGESIZE=1 ++EMBEDDED=yes ++TEMPLATE_NAME=elf32 ++ ++TEXT_LENGTH=1024K ++DATA_LENGTH=0xffa0 ++EXTRA_EM_FILE=avrelf +diff -Nur ld/emultempl/avrelf.em ld/emultempl/avrelf.em +--- ld/emultempl/avrelf.em 1970-01-01 01:00:00.000000000 +0100 ++++ ld/emultempl/avrelf.em 2006-08-28 20:02:17.047287284 +0200 +@@ -0,0 +1,267 @@ ++# This shell script emits a C file. -*- C -*- ++# Copyright 2006 ++# Free Software Foundation, Inc. ++# ++# This file is part of GLD, the Gnu Linker. ++# ++# This program is free software; you can redistribute it and/or modify ++# it under the terms of the GNU General Public License as published by ++# the Free Software Foundation; either version 2 of the License, or ++# (at your option) any later version. ++# ++# This program is distributed in the hope that it will be useful, ++# but WITHOUT ANY WARRANTY; without even the implied warranty of ++# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++# GNU General Public License for more details. ++# ++# You should have received a copy of the GNU General Public License ++# along with this program; if not, write to the Free Software ++# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, ++# MA 02110-1301 USA. ++ ++# This file is sourced from elf32.em, and defines extra avr-elf ++# specific routines. It is used to generate the trampolines for the avr6 ++# family devices where one needs to address the issue that it is not possible ++# to reach the whole program memory by using 16 bit pointers. ++ ++cat >>e${EMULATION_NAME}.c <<EOF ++ ++#include "elf32-avr.h" ++#include "ldctor.h" ++ ++/* The fake file and it's corresponding section meant to hold ++ the linker stubs if needed. */ ++ ++static lang_input_statement_type *stub_file; ++static asection *avr_stub_section; ++ ++/* Variables set by the command-line parameters and transfered ++ to the bfd without use of global shared variables. */ ++ ++static bfd_boolean avr_no_stubs = FALSE; ++static bfd_boolean avr_debug_relax = FALSE; ++static bfd_boolean avr_debug_stubs = FALSE; ++static bfd_boolean avr_replace_call_ret_sequences = TRUE; ++static bfd_vma avr_pc_wrap_around = 0x10000000; ++ ++/* Transfers information to the bfd frontend. */ ++ ++static void ++avr_elf_set_global_bfd_parameters (void) ++{ ++ elf32_avr_setup_params (& link_info, ++ stub_file->the_bfd, ++ avr_stub_section, ++ avr_no_stubs, ++ avr_debug_stubs, ++ avr_debug_relax, ++ avr_pc_wrap_around, ++ avr_replace_call_ret_sequences); ++} ++ ++ ++/* Makes a conservative estimate of the trampoline section size that could ++ be corrected later on. */ ++ ++static void ++avr_elf_${EMULATION_NAME}_before_allocation (void) ++{ ++ int ret; ++ ++ gld${EMULATION_NAME}_before_allocation (); ++ ++ /* We only need stubs for the avr6 family. */ ++ if (strcmp ("${EMULATION_NAME}","avr6")) ++ avr_no_stubs = TRUE; ++ ++ avr_elf_set_global_bfd_parameters (); ++ ++ /* If generating a relocatable output file, then ++ we don't have to generate the trampolines. */ ++ if (link_info.relocatable) ++ avr_no_stubs = TRUE; ++ ++ if (avr_no_stubs) ++ return; ++ ++ ret = elf32_avr_setup_section_lists (output_bfd, &link_info); ++ ++ if (ret < 0) ++ einfo ("%X%P: can not setup the input section list: %E\n"); ++ ++ if (ret <= 0) ++ return; ++ ++ /* Call into the BFD backend to do the real "stub"-work. */ ++ if (! elf32_avr_size_stubs (output_bfd, &link_info, TRUE)) ++ einfo ("%X%P: can not size stub section: %E\n"); ++} ++ ++/* This is called before the input files are opened. We create a new ++ fake input file to hold the stub section and generate the section itself. */ ++ ++static void ++avr_elf_create_output_section_statements (void) ++{ ++ flagword flags; ++ ++ stub_file = lang_add_input_file ("linker stubs", ++ lang_input_file_is_fake_enum, ++ NULL); ++ ++ stub_file->the_bfd = bfd_create ("linker stubs", output_bfd); ++ if (stub_file->the_bfd == NULL ++ || !bfd_set_arch_mach (stub_file->the_bfd, ++ bfd_get_arch (output_bfd), ++ bfd_get_mach (output_bfd))) ++ { ++ einfo ("%X%P: can not create stub BFD %E\n"); ++ return; ++ } ++ ++ /* Now we add the stub section. */ ++ ++ avr_stub_section = bfd_make_section_anyway (stub_file->the_bfd, ++ ".trampolines"); ++ if (avr_stub_section == NULL) ++ goto err_ret; ++ ++ flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE ++ | SEC_HAS_CONTENTS | SEC_RELOC | SEC_IN_MEMORY | SEC_KEEP); ++ if (!bfd_set_section_flags (stub_file->the_bfd, avr_stub_section, flags)) ++ goto err_ret; ++ ++ avr_stub_section->alignment_power = 1; ++ ++ ldlang_add_file (stub_file); ++ ++ return; ++ ++ err_ret: ++ einfo ("%X%P: can not make stub section: %E\n"); ++ return; ++} ++ ++/* Re-calculates the size of the stubs so that we won't waste space. */ ++ ++static void ++avr_elf_finish (void) ++{ ++ if (!avr_no_stubs) ++ { ++ /* Now build the linker stubs. */ ++ if (stub_file->the_bfd->sections != NULL) ++ { ++ /* Call again the trampoline analyzer to initialize the trampoline ++ stubs with the correct symbol addresses. Since there could have ++ been relaxation, the symbol addresses that were found during ++ first call may no longer be correct. */ ++ if (!elf32_avr_size_stubs (output_bfd, &link_info, FALSE)) ++ { ++ einfo ("%X%P: can not size stub section: %E\n"); ++ return; ++ } ++ ++ if (!elf32_avr_build_stubs (&link_info)) ++ einfo ("%X%P: can not build stubs: %E\n"); ++ } ++ } ++ ++ gld${EMULATION_NAME}_finish (); ++} ++ ++ ++EOF ++ ++ ++PARSE_AND_LIST_PROLOGUE=' ++ ++#define OPTION_NO_CALL_RET_REPLACEMENT 301 ++#define OPTION_PMEM_WRAP_AROUND 302 ++#define OPTION_NO_STUBS 303 ++#define OPTION_DEBUG_STUBS 304 ++#define OPTION_DEBUG_RELAX 305 ++' ++ ++PARSE_AND_LIST_LONGOPTS=' ++ { "no-call-ret-replacement", no_argument, ++ NULL, OPTION_NO_CALL_RET_REPLACEMENT}, ++ { "pmem-wrap-around", required_argument, ++ NULL, OPTION_PMEM_WRAP_AROUND}, ++ { "no-stubs", no_argument, ++ NULL, OPTION_NO_STUBS}, ++ { "debug-stubs", no_argument, ++ NULL, OPTION_DEBUG_STUBS}, ++ { "debug-relax", no_argument, ++ NULL, OPTION_DEBUG_RELAX}, ++' ++ ++PARSE_AND_LIST_OPTIONS=' ++ fprintf (file, _(" --pmem-wrap-around=<val> " ++ "Make the linker relaxation machine assume that a\n" ++ " " ++ "program counter wrap-around occures at address\n" ++ " " ++ "<val>. Supported values are 16k, 32k and 64k.\n")); ++ fprintf (file, _(" --no-call-ret-replacement " ++ "The relaxation machine normally will\n" ++ " " ++ "substitute two immediately following call/ret\n" ++ " " ++ "instructions by a single jump instruction.\n" ++ " " ++ "This option disables this optimization.\n")); ++ fprintf (file, _(" --no-stubs " ++ "If the linker detects to attempt to access\n" ++ " " ++ "an instruction beyond 128k by a reloc that\n" ++ " " ++ "is limited to 128k max, it inserts a jump\n" ++ " " ++ "stub. You can de-active this with this switch.\n")); ++ fprintf (file, _(" --debug-stubs Used for debugging avr-ld.\n")); ++ fprintf (file, _(" --debug-relax Used for debugging avr-ld.\n")); ++' ++ ++PARSE_AND_LIST_ARGS_CASES=' ++ ++ case OPTION_PMEM_WRAP_AROUND: ++ { ++ /* This variable is defined in the bfd library. */ ++ if ((!strcmp (optarg,"32k")) || (!strcmp (optarg,"32K"))) ++ avr_pc_wrap_around = 32768; ++ else if ((!strcmp (optarg,"16k")) || (!strcmp (optarg,"16K"))) ++ avr_pc_wrap_around = 16384; ++ else if ((!strcmp (optarg,"64k")) || (!strcmp (optarg,"64K"))) ++ avr_pc_wrap_around = 0x10000; ++ else ++ return FALSE; ++ } ++ break; ++ ++ case OPTION_DEBUG_STUBS: ++ avr_debug_stubs = TRUE; ++ break; ++ ++ case OPTION_DEBUG_RELAX: ++ avr_debug_relax = TRUE; ++ break; ++ ++ case OPTION_NO_STUBS: ++ avr_no_stubs = TRUE; ++ break; ++ ++ case OPTION_NO_CALL_RET_REPLACEMENT: ++ { ++ /* This variable is defined in the bfd library. */ ++ avr_replace_call_ret_sequences = FALSE; ++ } ++ break; ++' ++ ++# ++# Put these extra avr-elf routines in ld_${EMULATION_NAME}_emulation ++# ++LDEMUL_BEFORE_ALLOCATION=avr_elf_${EMULATION_NAME}_before_allocation ++LDEMUL_FINISH=avr_elf_finish ++LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=avr_elf_create_output_section_statements +diff -Nur ld/Makefile.am ld/Makefile.am +--- ld/Makefile.am 2006-06-03 06:45:50.000000000 +0200 ++++ ld/Makefile.am 2006-08-28 20:02:17.055286703 +0200 +@@ -133,6 +133,7 @@ + eavr3.o \ + eavr4.o \ + eavr5.o \ ++ eavr6.o \ + ecoff_i860.o \ + ecoff_sparc.o \ + ecrisaout.o \ +@@ -595,6 +596,10 @@ + $(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/avr.sc \ + ${GEN_DEPENDS} + ${GENSCRIPTS} avr5 "$(tdir_avr2)" ++eavr6.c: $(srcdir)/emulparams/avr6.sh \ ++ $(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/avr.sc \ ++ ${GEN_DEPENDS} ++ ${GENSCRIPTS} avr6 "$(tdir_avr2)" + ecoff_i860.c: $(srcdir)/emulparams/coff_i860.sh \ + $(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/i860coff.sc ${GEN_DEPENDS} + ${GENSCRIPTS} coff_i860 "$(tdir_coff_i860)" +diff -Nur ld/Makefile.in ld/Makefile.in +--- ld/Makefile.in 2006-06-03 06:45:50.000000000 +0200 ++++ ld/Makefile.in 2006-08-28 20:02:17.072285471 +0200 +@@ -357,6 +357,7 @@ + eavr3.o \ + eavr4.o \ + eavr5.o \ ++ eavr6.o \ + ecoff_i860.o \ + ecoff_sparc.o \ + ecrisaout.o \ +@@ -1406,6 +1407,10 @@ + $(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/avr.sc \ + ${GEN_DEPENDS} + ${GENSCRIPTS} avr5 "$(tdir_avr2)" ++eavr6.c: $(srcdir)/emulparams/avr6.sh \ ++ $(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/avr.sc \ ++ ${GEN_DEPENDS} ++ ${GENSCRIPTS} avr6 "$(tdir_avr2)" + ecoff_i860.c: $(srcdir)/emulparams/coff_i860.sh \ + $(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/i860coff.sc ${GEN_DEPENDS} + ${GENSCRIPTS} coff_i860 "$(tdir_coff_i860)" +diff -Nur ld/scripttempl/avr.sc ld/scripttempl/avr.sc +--- ld/scripttempl/avr.sc 2006-03-03 16:25:31.000000000 +0100 ++++ ld/scripttempl/avr.sc 2006-08-28 20:02:17.078285036 +0200 +@@ -71,12 +71,32 @@ + .rel.plt ${RELOCATING-0} : { *(.rel.plt) } + .rela.plt ${RELOCATING-0} : { *(.rela.plt) } + +- /* Internal text space or external memory */ ++ /* Internal text space or external memory. */ + .text : + { + *(.vectors) + KEEP(*(.vectors)) + ++ /* For data that needs to reside in the lower 64k of progmem. */ ++ *(.progmem.gcc*) ++ *(.progmem*) ++ ${RELOCATING+. = ALIGN(2);} ++ ++ ${CONSTRUCTING+ __trampolines_start = . ; } ++ /* The jump trampolines for the 16-bit limited relocs will reside here. */ ++ *(.trampolines) ++ *(.trampolines*) ++ ${CONSTRUCTING+ __trampolines_end = . ; } ++ ++ /* For future tablejump instruction arrays for 3 byte pc devices. ++ We don't relax jump/call instructions within these sections. */ ++ *(.jumptables) ++ *(.jumptables*) ++ ++ /* For code that needs to reside in the lower 128k progmem. */ ++ *(.lowtext) ++ *(.lowtext*) ++ + ${CONSTRUCTING+ __ctors_start = . ; } + ${CONSTRUCTING+ *(.ctors) } + ${CONSTRUCTING+ __ctors_end = . ; } +@@ -86,18 +106,8 @@ + KEEP(SORT(*)(.ctors)) + KEEP(SORT(*)(.dtors)) + +- /* For data that needs to reside in the lower 64k of progmem */ +- *(.progmem.gcc*) +- *(.progmem*) +- ${RELOCATING+. = ALIGN(2);} +- +- /* for future tablejump instruction arrays for 3 byte pc devices */ +- *(.jumptables) +- *(.jumptables*) +- /* for code that needs to reside in the lower 128k progmem */ +- *(.lowtext) +- *(.lowtext*) +- ++ /* From this point on, we don't bother about wether the insns are ++ below or above the 16 bits boundary. */ + *(.init0) /* Start here after reset. */ + KEEP (*(.init0)) + *(.init1) |