X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=bfd%2Freloc.c;h=5e10e7ed7084b71b73a352a8d93f9c5ffb924cdf;hb=335d71d67eab3d9e1cfdefc45af81fa65fbd5c8b;hp=77b4feb4ef1bdb8bff54a759b125bb7840f44673;hpb=e9f89963c40811550748184d4792d70336f1fcc8;p=deliverable%2Fbinutils-gdb.git diff --git a/bfd/reloc.c b/bfd/reloc.c index 77b4feb4ef..5e10e7ed70 100644 --- a/bfd/reloc.c +++ b/bfd/reloc.c @@ -1,6 +1,6 @@ /* BFD support for handling relocation entries. Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, - 2000, 2001, 2002, 2003, 2004, 2005 + 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc. Written by Cygnus Support. @@ -8,7 +8,7 @@ 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 + the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, @@ -18,7 +18,8 @@ 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. */ + Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, + MA 02110-1301, USA. */ /* SECTION @@ -47,8 +48,8 @@ SECTION /* DO compile in the reloc_code name table from libbfd.h. */ #define _BFD_MAKE_TABLE_bfd_reloc_code_real -#include "bfd.h" #include "sysdep.h" +#include "bfd.h" #include "bfdlink.h" #include "libbfd.h" /* @@ -255,11 +256,12 @@ CODE_FRAGMENT . {* Do not complain on overflow. *} . complain_overflow_dont, . -. {* Complain if the bitfield overflows, whether it is considered -. as signed or unsigned. *} +. {* Complain if the value overflows when considered as a signed +. number one bit larger than the field. ie. A bitfield of N bits +. is allowed to represent -2**n to 2**n-1. *} . complain_overflow_bitfield, . -. {* Complain if the value overflows when considered as signed +. {* Complain if the value overflows when considered as a signed . number. *} . complain_overflow_signed, . @@ -496,14 +498,14 @@ bfd_check_overflow (enum complain_overflow how, bfd_vma fieldmask, addrmask, signmask, ss, a; bfd_reloc_status_type flag = bfd_reloc_ok; - a = relocation; - /* Note: BITSIZE should always be <= ADDRSIZE, but in case it's not, we'll be permissive: extra bits in the field mask will automatically extend the address mask for purposes of the overflow check. */ fieldmask = N_ONES (bitsize); + signmask = ~fieldmask; addrmask = N_ONES (addrsize) | fieldmask; + a = (relocation & addrmask) >> rightshift;; switch (how) { @@ -513,19 +515,8 @@ bfd_check_overflow (enum complain_overflow how, case complain_overflow_signed: /* If any sign bits are set, all sign bits must be set. That is, A must be a valid negative address after shifting. */ - a = (a & addrmask) >> rightshift; signmask = ~ (fieldmask >> 1); - ss = a & signmask; - if (ss != 0 && ss != ((addrmask >> rightshift) & signmask)) - flag = bfd_reloc_overflow; - break; - - case complain_overflow_unsigned: - /* We have an overflow if the address does not fit in the field. */ - a = (a & addrmask) >> rightshift; - if ((a & ~ fieldmask) != 0) - flag = bfd_reloc_overflow; - break; + /* Fall thru */ case complain_overflow_bitfield: /* Bitfields are sometimes signed, sometimes unsigned. We @@ -533,9 +524,14 @@ bfd_check_overflow (enum complain_overflow how, of n bits is allowed to store -2**n to 2**n-1. Thus overflow if the value has some, but not all, bits set outside the field. */ - a >>= rightshift; - ss = a & ~ fieldmask; - if (ss != 0 && ss != (((bfd_vma) -1 >> rightshift) & ~ fieldmask)) + ss = a & signmask; + if (ss != 0 && ss != ((addrmask >> rightshift) & signmask)) + flag = bfd_reloc_overflow; + break; + + case complain_overflow_unsigned: + /* We have an overflow if the address does not fit in the field. */ + if ((a & signmask) != 0) flag = bfd_reloc_overflow; break; @@ -1168,7 +1164,9 @@ space consuming. For each target: 7) if they are different you have to figure out which version is right. */ relocation -= reloc_entry->addend; - reloc_entry->addend = 0; + /* FIXME: There should be no target specific code here... */ + if (strcmp (abfd->xvec->name, "coff-z8k") != 0) + reloc_entry->addend = 0; } else { @@ -1435,19 +1433,26 @@ _bfd_relocate_contents (reloc_howto_type *howto, the size of an address. For bitfields, all the bits matter. See also bfd_check_overflow. */ fieldmask = N_ONES (howto->bitsize); + signmask = ~fieldmask; addrmask = N_ONES (bfd_arch_bits_per_address (input_bfd)) | fieldmask; - a = relocation; - b = x & howto->src_mask; + a = (relocation & addrmask) >> rightshift; + b = (x & howto->src_mask & addrmask) >> bitpos; switch (howto->complain_on_overflow) { case complain_overflow_signed: - a = (a & addrmask) >> rightshift; - /* If any sign bits are set, all sign bits must be set. That is, A must be a valid negative address after shifting. */ - signmask = ~ (fieldmask >> 1); + signmask = ~(fieldmask >> 1); + /* Fall thru */ + + case complain_overflow_bitfield: + /* Much like the signed check, but for a field one bit + wider. We allow a bitfield to represent numbers in the + range -2**n to 2**n-1, where n is the number of bits in the + field. Note that when bfd_vma is 32 bits, a 32-bit reloc + can't overflow, which is exactly what we want. */ ss = a & signmask; if (ss != 0 && ss != ((addrmask >> rightshift) & signmask)) flag = bfd_reloc_overflow; @@ -1458,12 +1463,11 @@ _bfd_relocate_contents (reloc_howto_type *howto, SRC_MASK has more bits than BITSIZE, we can get into trouble; we would need to verify that B is in range, as we do for A above. */ - signmask = ((~ howto->src_mask) >> 1) & howto->src_mask; + ss = ((~howto->src_mask) >> 1) & howto->src_mask; + ss >>= bitpos; /* Set all the bits above the sign bit. */ - b = (b ^ signmask) - signmask; - - b = (b & addrmask) >> bitpos; + b = (b ^ ss) - ss; /* Now we can do the addition. */ sum = a + b; @@ -1475,11 +1479,14 @@ _bfd_relocate_contents (reloc_howto_type *howto, positive inputs. The test below looks only at the sign bits, and it really just SIGN (A) == SIGN (B) && SIGN (A) != SIGN (SUM) - */ - signmask = (fieldmask >> 1) + 1; - if (((~ (a ^ b)) & (a ^ sum)) & signmask) - flag = bfd_reloc_overflow; + We mask with addrmask here to explicitly allow an address + wrap-around. The Linux kernel relies on it, and it is + the only way to write assembler code which can run when + loaded at a location 0x80000000 away from the location at + which it is linked. */ + if (((~(a ^ b)) & (a ^ sum)) & signmask & addrmask) + flag = bfd_reloc_overflow; break; case complain_overflow_unsigned: @@ -1494,44 +1501,9 @@ _bfd_relocate_contents (reloc_howto_type *howto, separate test, we can check for this by or-ing in the operands when testing for the sum overflowing its final field. */ - a = (a & addrmask) >> rightshift; - b = (b & addrmask) >> bitpos; sum = (a + b) & addrmask; - if ((a | b | sum) & ~ fieldmask) + if ((a | b | sum) & signmask) flag = bfd_reloc_overflow; - - break; - - case complain_overflow_bitfield: - /* Much like the signed check, but for a field one bit - wider, and no trimming inputs with addrmask. We allow a - bitfield to represent numbers in the range -2**n to - 2**n-1, where n is the number of bits in the field. - Note that when bfd_vma is 32 bits, a 32-bit reloc can't - overflow, which is exactly what we want. */ - a >>= rightshift; - - signmask = ~ fieldmask; - ss = a & signmask; - if (ss != 0 && ss != (((bfd_vma) -1 >> rightshift) & signmask)) - flag = bfd_reloc_overflow; - - signmask = ((~ howto->src_mask) >> 1) & howto->src_mask; - b = (b ^ signmask) - signmask; - - b >>= bitpos; - - sum = a + b; - - /* We mask with addrmask here to explicitly allow an address - wrap-around. The Linux kernel relies on it, and it is - the only way to write assembler code which can run when - loaded at a location 0x80000000 away from the location at - which it is linked. */ - signmask = fieldmask + 1; - if (((~ (a ^ b)) & (a ^ sum)) & signmask & addrmask) - flag = bfd_reloc_overflow; - break; default: @@ -1551,7 +1523,6 @@ _bfd_relocate_contents (reloc_howto_type *howto, switch (size) { default: - case 0: abort (); case 1: bfd_put_8 (input_bfd, x, location); @@ -1574,12 +1545,78 @@ _bfd_relocate_contents (reloc_howto_type *howto, return flag; } +/* Clear a given location using a given howto, by applying a relocation value + of zero and discarding any in-place addend. This is used for fixed-up + relocations against discarded symbols, to make ignorable debug or unwind + information more obvious. */ + +void +_bfd_clear_contents (reloc_howto_type *howto, + bfd *input_bfd, + bfd_byte *location) +{ + int size; + bfd_vma x = 0; + + /* Get the value we are going to relocate. */ + size = bfd_get_reloc_size (howto); + switch (size) + { + default: + case 0: + abort (); + case 1: + x = bfd_get_8 (input_bfd, location); + break; + case 2: + x = bfd_get_16 (input_bfd, location); + break; + case 4: + x = bfd_get_32 (input_bfd, location); + break; + case 8: +#ifdef BFD64 + x = bfd_get_64 (input_bfd, location); +#else + abort (); +#endif + break; + } + + /* Zero out the unwanted bits of X. */ + x &= ~howto->dst_mask; + + /* Put the relocated value back in the object file. */ + switch (size) + { + default: + case 0: + abort (); + case 1: + bfd_put_8 (input_bfd, x, location); + break; + case 2: + bfd_put_16 (input_bfd, x, location); + break; + case 4: + bfd_put_32 (input_bfd, x, location); + break; + case 8: +#ifdef BFD64 + bfd_put_64 (input_bfd, x, location); +#else + abort (); +#endif + break; + } +} + /* DOCDD INODE howto manager, , typedef arelent, Relocations -SECTION +SUBSECTION The howto manager When an application wants to create a relocation, but doesn't @@ -1697,6 +1734,36 @@ ENUMX BFD_RELOC_68K_JMP_SLOT ENUMX BFD_RELOC_68K_RELATIVE +ENUMX + BFD_RELOC_68K_TLS_GD32 +ENUMX + BFD_RELOC_68K_TLS_GD16 +ENUMX + BFD_RELOC_68K_TLS_GD8 +ENUMX + BFD_RELOC_68K_TLS_LDM32 +ENUMX + BFD_RELOC_68K_TLS_LDM16 +ENUMX + BFD_RELOC_68K_TLS_LDM8 +ENUMX + BFD_RELOC_68K_TLS_LDO32 +ENUMX + BFD_RELOC_68K_TLS_LDO16 +ENUMX + BFD_RELOC_68K_TLS_LDO8 +ENUMX + BFD_RELOC_68K_TLS_IE32 +ENUMX + BFD_RELOC_68K_TLS_IE16 +ENUMX + BFD_RELOC_68K_TLS_IE8 +ENUMX + BFD_RELOC_68K_TLS_LE32 +ENUMX + BFD_RELOC_68K_TLS_LE16 +ENUMX + BFD_RELOC_68K_TLS_LE8 ENUMDOC Relocations used by 68K ELF. @@ -1793,6 +1860,16 @@ ENUMX BFD_RELOC_SPARC_UA32 ENUMX BFD_RELOC_SPARC_UA64 +ENUMX + BFD_RELOC_SPARC_GOTDATA_HIX22 +ENUMX + BFD_RELOC_SPARC_GOTDATA_LOX10 +ENUMX + BFD_RELOC_SPARC_GOTDATA_OP_HIX22 +ENUMX + BFD_RELOC_SPARC_GOTDATA_OP_LOX10 +ENUMX + BFD_RELOC_SPARC_GOTDATA_OP ENUMDOC SPARC ELF relocations. There is probably some overlap with other relocation types already defined. @@ -1912,6 +1989,37 @@ ENUMX ENUMDOC SPARC TLS relocations +ENUM + BFD_RELOC_SPU_IMM7 +ENUMX + BFD_RELOC_SPU_IMM8 +ENUMX + BFD_RELOC_SPU_IMM10 +ENUMX + BFD_RELOC_SPU_IMM10W +ENUMX + BFD_RELOC_SPU_IMM16 +ENUMX + BFD_RELOC_SPU_IMM16W +ENUMX + BFD_RELOC_SPU_IMM18 +ENUMX + BFD_RELOC_SPU_PCREL9a +ENUMX + BFD_RELOC_SPU_PCREL9b +ENUMX + BFD_RELOC_SPU_PCREL16 +ENUMX + BFD_RELOC_SPU_LO16 +ENUMX + BFD_RELOC_SPU_HI16 +ENUMX + BFD_RELOC_SPU_PPU32 +ENUMX + BFD_RELOC_SPU_PPU64 +ENUMDOC + SPU Relocations. + ENUM BFD_RELOC_ALPHA_GPDISP_HI16 ENUMDOC @@ -2001,6 +2109,30 @@ ENUMDOC share a common GP, and the target address is adjusted for STO_ALPHA_STD_GPLOAD. +ENUM + BFD_RELOC_ALPHA_NOP +ENUMDOC + The NOP relocation outputs a NOP if the longword displacement + between two procedure entry points is < 2^21. + +ENUM + BFD_RELOC_ALPHA_BSR +ENUMDOC + The BSR relocation outputs a BSR if the longword displacement + between two procedure entry points is < 2^21. + +ENUM + BFD_RELOC_ALPHA_LDA +ENUMDOC + The LDA relocation outputs a LDA if the longword displacement + between two procedure entry points is < 2^16. + +ENUM + BFD_RELOC_ALPHA_BOH +ENUMDOC + The BOH relocation outputs a BSR if the longword displacement + between two procedure entry points is < 2^21, or else a hint. + ENUM BFD_RELOC_ALPHA_TLSGD ENUMX @@ -2075,6 +2207,13 @@ ENUM ENUMDOC Low 16 bits of pc-relative value +ENUM + BFD_RELOC_MIPS16_GOT16 +ENUMX + BFD_RELOC_MIPS16_CALL16 +ENUMDOC + Equivalent of BFD_RELOC_MIPS_*, but with the MIPS16 layout of + 16-bit immediate fields ENUM BFD_RELOC_MIPS16_HI16 ENUMDOC @@ -2168,6 +2307,14 @@ ENUMDOC MIPS ELF relocations. COMMENT +ENUM + BFD_RELOC_MIPS_COPY +ENUMX + BFD_RELOC_MIPS_JUMP_SLOT +ENUMDOC + MIPS ELF relocations (VxWorks and PLT extensions). +COMMENT + ENUM BFD_RELOC_FRV_LABEL16 ENUMX @@ -2285,6 +2432,18 @@ ENUM BFD_RELOC_MN10300_RELATIVE ENUMDOC Adjust by program base. +ENUM + BFD_RELOC_MN10300_SYM_DIFF +ENUMDOC + Together with another reloc targeted at the same location, + allows for a value that is the difference of two symbols + in the same section. +ENUM + BFD_RELOC_MN10300_ALIGN +ENUMDOC + The addend of this reloc is an alignment power that must + be honoured at the offset's location, regardless of linker + relaxation. COMMENT ENUM @@ -2327,6 +2486,12 @@ ENUMX BFD_RELOC_386_TLS_DTPOFF32 ENUMX BFD_RELOC_386_TLS_TPOFF32 +ENUMX + BFD_RELOC_386_TLS_GOTDESC +ENUMX + BFD_RELOC_386_TLS_DESC_CALL +ENUMX + BFD_RELOC_386_TLS_DESC ENUMDOC i386/elf relocations @@ -2366,6 +2531,22 @@ ENUMX BFD_RELOC_X86_64_GOTOFF64 ENUMX BFD_RELOC_X86_64_GOTPC32 +ENUMX + BFD_RELOC_X86_64_GOT64 +ENUMX + BFD_RELOC_X86_64_GOTPCREL64 +ENUMX + BFD_RELOC_X86_64_GOTPC64 +ENUMX + BFD_RELOC_X86_64_GOTPLT64 +ENUMX + BFD_RELOC_X86_64_PLTOFF64 +ENUMX + BFD_RELOC_X86_64_GOTPC32_TLSDESC +ENUMX + BFD_RELOC_X86_64_TLSDESC_CALL +ENUMX + BFD_RELOC_X86_64_TLSDESC ENUMDOC x86-64/elf relocations @@ -2529,6 +2710,10 @@ ENUMDOC ENUM BFD_RELOC_PPC_TLS +ENUMX + BFD_RELOC_PPC_TLSGD +ENUMX + BFD_RELOC_PPC_TLSLD ENUMX BFD_RELOC_PPC_DTPMOD ENUMX @@ -2639,6 +2824,14 @@ ENUMDOC Thumb 22 bit pc-relative branch. The lowest bit must be zero and is not stored in the instruction. The 2nd lowest bit comes from a 1 bit field in the instruction. +ENUM + BFD_RELOC_ARM_PCREL_CALL +ENUMDOC + ARM 26-bit pc-relative branch for an unconditional BL or BLX instruction. +ENUM + BFD_RELOC_ARM_PCREL_JUMP +ENUMDOC + ARM 26-bit pc-relative branch for B or conditional BL instruction. ENUM BFD_RELOC_THUMB_PCREL_BRANCH7 @@ -2692,6 +2885,24 @@ ENUM BFD_RELOC_ARM_PREL31 ENUMDOC 31-bit PC relative address. +ENUM + BFD_RELOC_ARM_MOVW +ENUMX + BFD_RELOC_ARM_MOVT +ENUMX + BFD_RELOC_ARM_MOVW_PCREL +ENUMX + BFD_RELOC_ARM_MOVT_PCREL +ENUMX + BFD_RELOC_ARM_THUMB_MOVW +ENUMX + BFD_RELOC_ARM_THUMB_MOVT +ENUMX + BFD_RELOC_ARM_THUMB_MOVW_PCREL +ENUMX + BFD_RELOC_ARM_THUMB_MOVT_PCREL +ENUMDOC + Low and High halfword relocations for MOVW and MOVT instructions. ENUM BFD_RELOC_ARM_JUMP_SLOT @@ -2729,12 +2940,78 @@ ENUMX ENUMDOC ARM thread-local storage relocations. +ENUM + BFD_RELOC_ARM_ALU_PC_G0_NC +ENUMX + BFD_RELOC_ARM_ALU_PC_G0 +ENUMX + BFD_RELOC_ARM_ALU_PC_G1_NC +ENUMX + BFD_RELOC_ARM_ALU_PC_G1 +ENUMX + BFD_RELOC_ARM_ALU_PC_G2 +ENUMX + BFD_RELOC_ARM_LDR_PC_G0 +ENUMX + BFD_RELOC_ARM_LDR_PC_G1 +ENUMX + BFD_RELOC_ARM_LDR_PC_G2 +ENUMX + BFD_RELOC_ARM_LDRS_PC_G0 +ENUMX + BFD_RELOC_ARM_LDRS_PC_G1 +ENUMX + BFD_RELOC_ARM_LDRS_PC_G2 +ENUMX + BFD_RELOC_ARM_LDC_PC_G0 +ENUMX + BFD_RELOC_ARM_LDC_PC_G1 +ENUMX + BFD_RELOC_ARM_LDC_PC_G2 +ENUMX + BFD_RELOC_ARM_ALU_SB_G0_NC +ENUMX + BFD_RELOC_ARM_ALU_SB_G0 +ENUMX + BFD_RELOC_ARM_ALU_SB_G1_NC +ENUMX + BFD_RELOC_ARM_ALU_SB_G1 +ENUMX + BFD_RELOC_ARM_ALU_SB_G2 +ENUMX + BFD_RELOC_ARM_LDR_SB_G0 +ENUMX + BFD_RELOC_ARM_LDR_SB_G1 +ENUMX + BFD_RELOC_ARM_LDR_SB_G2 +ENUMX + BFD_RELOC_ARM_LDRS_SB_G0 +ENUMX + BFD_RELOC_ARM_LDRS_SB_G1 +ENUMX + BFD_RELOC_ARM_LDRS_SB_G2 +ENUMX + BFD_RELOC_ARM_LDC_SB_G0 +ENUMX + BFD_RELOC_ARM_LDC_SB_G1 +ENUMX + BFD_RELOC_ARM_LDC_SB_G2 +ENUMDOC + ARM group relocations. + +ENUM + BFD_RELOC_ARM_V4BX +ENUMDOC + Annotation of BX instructions. + ENUM BFD_RELOC_ARM_IMMEDIATE ENUMX BFD_RELOC_ARM_ADRL_IMMEDIATE ENUMX BFD_RELOC_ARM_T32_IMMEDIATE +ENUMX + BFD_RELOC_ARM_T32_ADD_IMM ENUMX BFD_RELOC_ARM_T32_IMM12 ENUMX @@ -2742,7 +3019,7 @@ ENUMX ENUMX BFD_RELOC_ARM_SHIFT_IMM ENUMX - BFD_RELOC_ARM_SMI + BFD_RELOC_ARM_SMC ENUMX BFD_RELOC_ARM_SWI ENUMX @@ -2751,6 +3028,10 @@ ENUMX BFD_RELOC_ARM_CP_OFF_IMM ENUMX BFD_RELOC_ARM_CP_OFF_IMM_S2 +ENUMX + BFD_RELOC_ARM_T32_CP_OFF_IMM +ENUMX + BFD_RELOC_ARM_T32_CP_OFF_IMM_S2 ENUMX BFD_RELOC_ARM_ADR_IMM ENUMX @@ -2974,6 +3255,169 @@ ENUMDOC stored in the instruction. The high 24 bits are installed in bits 23 through 0. +ENUM + BFD_RELOC_BFIN_16_IMM +ENUMDOC + ADI Blackfin 16 bit immediate absolute reloc. +ENUM + BFD_RELOC_BFIN_16_HIGH +ENUMDOC + ADI Blackfin 16 bit immediate absolute reloc higher 16 bits. +ENUM + BFD_RELOC_BFIN_4_PCREL +ENUMDOC + ADI Blackfin 'a' part of LSETUP. +ENUM + BFD_RELOC_BFIN_5_PCREL +ENUMDOC + ADI Blackfin. +ENUM + BFD_RELOC_BFIN_16_LOW +ENUMDOC + ADI Blackfin 16 bit immediate absolute reloc lower 16 bits. +ENUM + BFD_RELOC_BFIN_10_PCREL +ENUMDOC + ADI Blackfin. +ENUM + BFD_RELOC_BFIN_11_PCREL +ENUMDOC + ADI Blackfin 'b' part of LSETUP. +ENUM + BFD_RELOC_BFIN_12_PCREL_JUMP +ENUMDOC + ADI Blackfin. +ENUM + BFD_RELOC_BFIN_12_PCREL_JUMP_S +ENUMDOC + ADI Blackfin Short jump, pcrel. +ENUM + BFD_RELOC_BFIN_24_PCREL_CALL_X +ENUMDOC + ADI Blackfin Call.x not implemented. +ENUM + BFD_RELOC_BFIN_24_PCREL_JUMP_L +ENUMDOC + ADI Blackfin Long Jump pcrel. +ENUM + BFD_RELOC_BFIN_GOT17M4 +ENUMX + BFD_RELOC_BFIN_GOTHI +ENUMX + BFD_RELOC_BFIN_GOTLO +ENUMX + BFD_RELOC_BFIN_FUNCDESC +ENUMX + BFD_RELOC_BFIN_FUNCDESC_GOT17M4 +ENUMX + BFD_RELOC_BFIN_FUNCDESC_GOTHI +ENUMX + BFD_RELOC_BFIN_FUNCDESC_GOTLO +ENUMX + BFD_RELOC_BFIN_FUNCDESC_VALUE +ENUMX + BFD_RELOC_BFIN_FUNCDESC_GOTOFF17M4 +ENUMX + BFD_RELOC_BFIN_FUNCDESC_GOTOFFHI +ENUMX + BFD_RELOC_BFIN_FUNCDESC_GOTOFFLO +ENUMX + BFD_RELOC_BFIN_GOTOFF17M4 +ENUMX + BFD_RELOC_BFIN_GOTOFFHI +ENUMX + BFD_RELOC_BFIN_GOTOFFLO +ENUMDOC + ADI Blackfin FD-PIC relocations. +ENUM + BFD_RELOC_BFIN_GOT +ENUMDOC + ADI Blackfin GOT relocation. +ENUM + BFD_RELOC_BFIN_PLTPC +ENUMDOC + ADI Blackfin PLTPC relocation. +ENUM + BFD_ARELOC_BFIN_PUSH +ENUMDOC + ADI Blackfin arithmetic relocation. +ENUM + BFD_ARELOC_BFIN_CONST +ENUMDOC + ADI Blackfin arithmetic relocation. +ENUM + BFD_ARELOC_BFIN_ADD +ENUMDOC + ADI Blackfin arithmetic relocation. +ENUM + BFD_ARELOC_BFIN_SUB +ENUMDOC + ADI Blackfin arithmetic relocation. +ENUM + BFD_ARELOC_BFIN_MULT +ENUMDOC + ADI Blackfin arithmetic relocation. +ENUM + BFD_ARELOC_BFIN_DIV +ENUMDOC + ADI Blackfin arithmetic relocation. +ENUM + BFD_ARELOC_BFIN_MOD +ENUMDOC + ADI Blackfin arithmetic relocation. +ENUM + BFD_ARELOC_BFIN_LSHIFT +ENUMDOC + ADI Blackfin arithmetic relocation. +ENUM + BFD_ARELOC_BFIN_RSHIFT +ENUMDOC + ADI Blackfin arithmetic relocation. +ENUM + BFD_ARELOC_BFIN_AND +ENUMDOC + ADI Blackfin arithmetic relocation. +ENUM + BFD_ARELOC_BFIN_OR +ENUMDOC + ADI Blackfin arithmetic relocation. +ENUM + BFD_ARELOC_BFIN_XOR +ENUMDOC + ADI Blackfin arithmetic relocation. +ENUM + BFD_ARELOC_BFIN_LAND +ENUMDOC + ADI Blackfin arithmetic relocation. +ENUM + BFD_ARELOC_BFIN_LOR +ENUMDOC + ADI Blackfin arithmetic relocation. +ENUM + BFD_ARELOC_BFIN_LEN +ENUMDOC + ADI Blackfin arithmetic relocation. +ENUM + BFD_ARELOC_BFIN_NEG +ENUMDOC + ADI Blackfin arithmetic relocation. +ENUM + BFD_ARELOC_BFIN_COMP +ENUMDOC + ADI Blackfin arithmetic relocation. +ENUM + BFD_ARELOC_BFIN_PAGE +ENUMDOC + ADI Blackfin arithmetic relocation. +ENUM + BFD_ARELOC_BFIN_HWPAGE +ENUMDOC + ADI Blackfin arithmetic relocation. +ENUM + BFD_ARELOC_BFIN_ADDR +ENUMDOC + ADI Blackfin arithmetic relocation. + ENUM BFD_RELOC_D10V_10_PCREL_R ENUMDOC @@ -3074,6 +3518,12 @@ ENUMDOC ENUM BFD_RELOC_M32C_HI8 +ENUMX + BFD_RELOC_M32C_RL_JUMP +ENUMX + BFD_RELOC_M32C_RL_1ADDR +ENUMX + BFD_RELOC_M32C_RL_2ADDR ENUMDOC Renesas M16C/M32C Relocations. @@ -3347,6 +3797,50 @@ ENUMX ENUMDOC Motorola Mcore relocations. +ENUM + BFD_RELOC_MEP_8 +ENUMX + BFD_RELOC_MEP_16 +ENUMX + BFD_RELOC_MEP_32 +ENUMX + BFD_RELOC_MEP_PCREL8A2 +ENUMX + BFD_RELOC_MEP_PCREL12A2 +ENUMX + BFD_RELOC_MEP_PCREL17A2 +ENUMX + BFD_RELOC_MEP_PCREL24A2 +ENUMX + BFD_RELOC_MEP_PCABS24A2 +ENUMX + BFD_RELOC_MEP_LOW16 +ENUMX + BFD_RELOC_MEP_HI16U +ENUMX + BFD_RELOC_MEP_HI16S +ENUMX + BFD_RELOC_MEP_GPREL +ENUMX + BFD_RELOC_MEP_TPREL +ENUMX + BFD_RELOC_MEP_TPREL7 +ENUMX + BFD_RELOC_MEP_TPREL7A2 +ENUMX + BFD_RELOC_MEP_TPREL7A4 +ENUMX + BFD_RELOC_MEP_UIMM24 +ENUMX + BFD_RELOC_MEP_ADDR24A4 +ENUMX + BFD_RELOC_MEP_GNU_VTINHERIT +ENUMX + BFD_RELOC_MEP_GNU_VTENTRY +ENUMDOC + Toshiba Media Processor Relocations. +COMMENT + ENUM BFD_RELOC_MMIX_GETA ENUMX @@ -3451,6 +3945,11 @@ ENUM ENUMDOC This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit of program memory address) into 8 bit immediate value of LDI insn. +ENUM + BFD_RELOC_AVR_MS8_LDI +ENUMDOC + This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit + of 32 bit value) into 8 bit immediate value of LDI insn. ENUM BFD_RELOC_AVR_LO8_LDI_NEG ENUMDOC @@ -3468,16 +3967,35 @@ ENUMDOC This is a 16 bit reloc for the AVR that stores negated 8 bit value (most high 8 bit of program memory address) into 8 bit immediate value of LDI or SUBI insn. +ENUM + BFD_RELOC_AVR_MS8_LDI_NEG +ENUMDOC + This is a 16 bit reloc for the AVR that stores negated 8 bit value (msb + of 32 bit value) into 8 bit immediate value of LDI insn. ENUM BFD_RELOC_AVR_LO8_LDI_PM ENUMDOC 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 @@ -3680,6 +4198,52 @@ ENUMX ENUMDOC Long displacement extension. +ENUM + BFD_RELOC_SCORE_GPREL15 +ENUMDOC + Score relocations + Low 16 bit for load/store +ENUM + BFD_RELOC_SCORE_DUMMY2 +ENUMX + BFD_RELOC_SCORE_JMP +ENUMDOC + This is a 24-bit reloc with the right 1 bit assumed to be 0 +ENUM + BFD_RELOC_SCORE_BRANCH +ENUMDOC + This is a 19-bit reloc with the right 1 bit assumed to be 0 +ENUM + BFD_RELOC_SCORE_IMM30 +ENUMDOC + This is a 32-bit reloc for 48-bit instructions. +ENUM + BFD_RELOC_SCORE_IMM32 +ENUMDOC + This is a 32-bit reloc for 48-bit instructions. +ENUM + BFD_RELOC_SCORE16_JMP +ENUMDOC + This is a 11-bit reloc with the right 1 bit assumed to be 0 +ENUM + BFD_RELOC_SCORE16_BRANCH +ENUMDOC + This is a 8-bit reloc with the right 1 bit assumed to be 0 +ENUM + BFD_RELOC_SCORE_BCMP +ENUMDOC + This is a 9-bit reloc with the right 1 bit assumed to be 0 +ENUM + BFD_RELOC_SCORE_GOT15 +ENUMX + BFD_RELOC_SCORE_GOT_LO16 +ENUMX + BFD_RELOC_SCORE_CALL15 +ENUMX + BFD_RELOC_SCORE_DUMMY_HI16 +ENUMDOC + Undocumented Score relocs + ENUM BFD_RELOC_IP2K_FR9 ENUMDOC @@ -4053,6 +4617,75 @@ ENUMX ENUMDOC NS CR16C Relocations. +ENUM + BFD_RELOC_CR16_NUM8 +ENUMX + BFD_RELOC_CR16_NUM16 +ENUMX + BFD_RELOC_CR16_NUM32 +ENUMX + BFD_RELOC_CR16_NUM32a +ENUMX + BFD_RELOC_CR16_REGREL0 +ENUMX + BFD_RELOC_CR16_REGREL4 +ENUMX + BFD_RELOC_CR16_REGREL4a +ENUMX + BFD_RELOC_CR16_REGREL14 +ENUMX + BFD_RELOC_CR16_REGREL14a +ENUMX + BFD_RELOC_CR16_REGREL16 +ENUMX + BFD_RELOC_CR16_REGREL20 +ENUMX + BFD_RELOC_CR16_REGREL20a +ENUMX + BFD_RELOC_CR16_ABS20 +ENUMX + BFD_RELOC_CR16_ABS24 +ENUMX + BFD_RELOC_CR16_IMM4 +ENUMX + BFD_RELOC_CR16_IMM8 +ENUMX + BFD_RELOC_CR16_IMM16 +ENUMX + BFD_RELOC_CR16_IMM20 +ENUMX + BFD_RELOC_CR16_IMM24 +ENUMX + BFD_RELOC_CR16_IMM32 +ENUMX + BFD_RELOC_CR16_IMM32a +ENUMX + BFD_RELOC_CR16_DISP4 +ENUMX + BFD_RELOC_CR16_DISP8 +ENUMX + BFD_RELOC_CR16_DISP16 +ENUMX + BFD_RELOC_CR16_DISP20 +ENUMX + BFD_RELOC_CR16_DISP24 +ENUMX + BFD_RELOC_CR16_DISP24a +ENUMX + BFD_RELOC_CR16_SWITCH8 +ENUMX + BFD_RELOC_CR16_SWITCH16 +ENUMX + BFD_RELOC_CR16_SWITCH32 +ENUMX + BFD_RELOC_CR16_GOT_REGREL20 +ENUMX + BFD_RELOC_CR16_GOTC_REGREL20 +ENUMX + BFD_RELOC_CR16_GLOB_DAT +ENUMDOC + NS CR16 Relocations. + ENUM BFD_RELOC_CRX_REL4 ENUMX @@ -4093,7 +4726,7 @@ ENUMX BFD_RELOC_CRX_SWITCH16 ENUMX BFD_RELOC_CRX_SWITCH32 -ENUMDOC +ENUMDOC NS CRX Relocations. ENUM @@ -4158,6 +4791,33 @@ ENUM ENUMDOC 32-bit offset to symbol with PLT entry, relative to this relocation. +ENUM + BFD_RELOC_CRIS_32_GOT_GD +ENUMX + BFD_RELOC_CRIS_16_GOT_GD +ENUMX + BFD_RELOC_CRIS_32_GD +ENUMX + BFD_RELOC_CRIS_DTP +ENUMX + BFD_RELOC_CRIS_32_DTPREL +ENUMX + BFD_RELOC_CRIS_16_DTPREL +ENUMX + BFD_RELOC_CRIS_32_GOT_TPREL +ENUMX + BFD_RELOC_CRIS_16_GOT_TPREL +ENUMX + BFD_RELOC_CRIS_32_TPREL +ENUMX + BFD_RELOC_CRIS_16_TPREL +ENUMX + BFD_RELOC_CRIS_DTPMOD +ENUMX + BFD_RELOC_CRIS_32_IE +ENUMDOC + Relocs used in TLS code for CRIS. + ENUM BFD_RELOC_860_COPY ENUMX @@ -4256,6 +4916,23 @@ ENUMX ENUMDOC Sony Xstormy16 Relocations. +ENUM + BFD_RELOC_RELC +ENUMDOC + Self-describing complex relocations. +COMMENT + +ENUM + BFD_RELOC_XC16X_PAG +ENUMX + BFD_RELOC_XC16X_POF +ENUMX + BFD_RELOC_XC16X_SEG +ENUMX + BFD_RELOC_XC16X_SOF +ENUMDOC + Infineon Relocations. + ENUM BFD_RELOC_VAX_GLOB_DAT ENUMX @@ -4264,27 +4941,31 @@ ENUMX BFD_RELOC_VAX_RELATIVE ENUMDOC Relocations used by VAX ELF. - + ENUM - BFD_RELOC_MS1_PC16 + BFD_RELOC_MT_PC16 ENUMDOC - Morpho MS1 - 16 bit immediate relocation. + Morpho MT - 16 bit immediate relocation. ENUM - BFD_RELOC_MS1_HI16 + BFD_RELOC_MT_HI16 ENUMDOC - Morpho MS1 - Hi 16 bits of an address. + Morpho MT - Hi 16 bits of an address. ENUM - BFD_RELOC_MS1_LO16 + BFD_RELOC_MT_LO16 ENUMDOC - Morpho MS1 - Low 16 bits of an address. + Morpho MT - Low 16 bits of an address. ENUM - BFD_RELOC_MS1_GNU_VTINHERIT + BFD_RELOC_MT_GNU_VTINHERIT ENUMDOC - Morpho MS1 - Used to tell the linker which vtable entries are used. + Morpho MT - Used to tell the linker which vtable entries are used. ENUM - BFD_RELOC_MS1_GNU_VTENTRY + BFD_RELOC_MT_GNU_VTENTRY ENUMDOC - Morpho MS1 - Used to tell the linker which vtable entries are used. + Morpho MT - Used to tell the linker which vtable entries are used. +ENUM + BFD_RELOC_MT_PCINSN8 +ENUMDOC + Morpho MT - 8 bit immediate relocation. ENUM BFD_RELOC_MSP430_10_PCREL @@ -4424,17 +5105,72 @@ ENUMDOC ENUM BFD_RELOC_XTENSA_ASM_EXPAND ENUMDOC - Xtensa relocation to mark that the assembler expanded the + Xtensa relocation to mark that the assembler expanded the instructions from an original target. The expansion size is encoded in the reloc size. ENUM BFD_RELOC_XTENSA_ASM_SIMPLIFY ENUMDOC - Xtensa relocation to mark that the linker should simplify - assembler-expanded instructions. This is commonly used - internally by the linker after analysis of a + Xtensa relocation to mark that the linker should simplify + assembler-expanded instructions. This is commonly used + internally by the linker after analysis of a BFD_RELOC_XTENSA_ASM_EXPAND. +ENUM + BFD_RELOC_XTENSA_TLSDESC_FN +ENUMX + BFD_RELOC_XTENSA_TLSDESC_ARG +ENUMX + BFD_RELOC_XTENSA_TLS_DTPOFF +ENUMX + BFD_RELOC_XTENSA_TLS_TPOFF +ENUMX + BFD_RELOC_XTENSA_TLS_FUNC +ENUMX + BFD_RELOC_XTENSA_TLS_ARG +ENUMX + BFD_RELOC_XTENSA_TLS_CALL +ENUMDOC + Xtensa TLS relocations. + +ENUM + BFD_RELOC_Z80_DISP8 +ENUMDOC + 8 bit signed offset in (ix+d) or (iy+d). + +ENUM + BFD_RELOC_Z8K_DISP7 +ENUMDOC + DJNZ offset. +ENUM + BFD_RELOC_Z8K_CALLR +ENUMDOC + CALR offset. +ENUM + BFD_RELOC_Z8K_IMM4L +ENUMDOC + 4 bit value. +ENUM + BFD_RELOC_LM32_CALL +ENUMX + BFD_RELOC_LM32_BRANCH +ENUMX + BFD_RELOC_LM32_16_GOT +ENUMX + BFD_RELOC_LM32_GOTOFF_HI16 +ENUMX + BFD_RELOC_LM32_GOTOFF_LO16 +ENUMX + BFD_RELOC_LM32_COPY +ENUMX + BFD_RELOC_LM32_GLOB_DAT +ENUMX + BFD_RELOC_LM32_JMP_SLOT +ENUMX + BFD_RELOC_LM32_RELATIVE +ENUMDOC + Lattice Mico32 relocations. + ENDSENUM BFD_RELOC_UNUSED CODE_FRAGMENT @@ -4445,10 +5181,13 @@ CODE_FRAGMENT /* FUNCTION bfd_reloc_type_lookup + bfd_reloc_name_lookup SYNOPSIS reloc_howto_type *bfd_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code); + reloc_howto_type *bfd_reloc_name_lookup + (bfd *abfd, const char *reloc_name); DESCRIPTION Return a pointer to a howto structure which, when @@ -4463,8 +5202,14 @@ bfd_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code) return BFD_SEND (abfd, reloc_type_lookup, (abfd, code)); } +reloc_howto_type * +bfd_reloc_name_lookup (bfd *abfd, const char *reloc_name) +{ + return BFD_SEND (abfd, reloc_name_lookup, (abfd, reloc_name)); +} + static reloc_howto_type bfd_howto_32 = -HOWTO (0, 00, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "VRT32", FALSE, 0xffffffff, 0xffffffff, TRUE); +HOWTO (0, 00, 2, 32, FALSE, 0, complain_overflow_dont, 0, "VRT32", FALSE, 0xffffffff, 0xffffffff, TRUE); /* INTERNAL_FUNCTION @@ -4617,26 +5362,28 @@ bfd_generic_get_relocated_section_contents (bfd *abfd, bfd_boolean relocatable, asymbol **symbols) { - /* Get enough memory to hold the stuff. */ bfd *input_bfd = link_order->u.indirect.section->owner; asection *input_section = link_order->u.indirect.section; - - long reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section); - arelent **reloc_vector = NULL; + long reloc_size; + arelent **reloc_vector; long reloc_count; bfd_size_type sz; + reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section); if (reloc_size < 0) - goto error_return; - - reloc_vector = bfd_malloc (reloc_size); - if (reloc_vector == NULL && reloc_size != 0) - goto error_return; + return NULL; /* Read in the section. */ sz = input_section->rawsize ? input_section->rawsize : input_section->size; if (!bfd_get_section_contents (input_bfd, input_section, data, 0, sz)) - goto error_return; + return NULL; + + if (reloc_size == 0) + return data; + + reloc_vector = bfd_malloc (reloc_size); + if (reloc_vector == NULL) + return NULL; reloc_count = bfd_canonicalize_reloc (input_bfd, input_section, @@ -4651,13 +5398,31 @@ bfd_generic_get_relocated_section_contents (bfd *abfd, for (parent = reloc_vector; *parent != NULL; parent++) { char *error_message = NULL; - bfd_reloc_status_type r = - bfd_perform_relocation (input_bfd, - *parent, - data, - input_section, - relocatable ? abfd : NULL, - &error_message); + asymbol *symbol; + bfd_reloc_status_type r; + + symbol = *(*parent)->sym_ptr_ptr; + if (symbol->section && elf_discarded_section (symbol->section)) + { + bfd_byte *p; + static reloc_howto_type none_howto + = HOWTO (0, 0, 0, 0, FALSE, 0, complain_overflow_dont, NULL, + "unused", FALSE, 0, 0, FALSE); + + p = data + (*parent)->address * bfd_octets_per_byte (input_bfd); + _bfd_clear_contents ((*parent)->howto, input_bfd, p); + (*parent)->sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr; + (*parent)->addend = 0; + (*parent)->howto = &none_howto; + r = bfd_reloc_ok; + } + else + r = bfd_perform_relocation (input_bfd, + *parent, + data, + input_section, + relocatable ? abfd : NULL, + &error_message); if (relocatable) { @@ -4703,12 +5468,11 @@ bfd_generic_get_relocated_section_contents (bfd *abfd, } } } - if (reloc_vector != NULL) - free (reloc_vector); + + free (reloc_vector); return data; error_return: - if (reloc_vector != NULL) - free (reloc_vector); + free (reloc_vector); return NULL; }