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Thumb32 assembler. 

* include/elf/arm.h: Import full set of relocation names from
	latest AAELF.  Make the primary name of all relocations be the one
	AAELF specifies.  Provide aliases under the traditional names.
	Kill FIRST_INVALID_RELOC_* and LAST_INVALID_RELOC_*.
	* bfd/reloc.c: Reorganize ARM relocations.  Remove ARM relocations
	that are never generated.  Document more of the relocations.  Add
	relocations for Thumb32.
	* bfd/libbfd.h, bfd/bfd-in2.h: Regenerate.
	* bfd/elf32-arm.c: Reorganize howto tables.  Implement Thumb32
	relocations.
	* ld/testsuite/ld-arm/mixed-app.d: Adjust expectations for
	renamed relocations.

	* gas/hash.c (hash_find_n): New interface.
	* gas/hash.h: Prototype it.

	* gas/config/tc-arm.c: Rewrite and reorganize.  Implement 32-bit
	Thumb instructions.
	* gas/testsuite/gas/arm: Convert all "gas_test" style tests to
	"run_dump_test" style tests, for more thorough testing.  Make
	adjustments to expectations where necessary.
	* gas/testsuite/gas/arm/t16-bad.s, gas/testsuite/gas/arm/tcompat.s
	* gas/testsuite/gas/arm/tcompat2.s, gas/testsuite/gas/arm/thumb32.s:
	New test cases.

	* opcodes/arm-dis.c: Add support for Thumb32 instructions and
	16-bit V6T2 instructions.
This commit is contained in:
Zack Weinberg 2005-04-26 05:31:42 +00:00
parent 0fe0a99434
commit c6615227ee
2 changed files with 188 additions and 89 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
ChangeLog.csl
View File

@ -1,3 +1,36 @@
2005-04-25 Zack Weinberg <zack@codesourcery.com>
Thumb32 assembler.
* include/elf/arm.h: Import full set of relocation names from
latest AAELF. Make the primary name of all relocations be the one
AAELF specifies. Provide aliases under the traditional names.
Kill FIRST_INVALID_RELOC_* and LAST_INVALID_RELOC_*.
* bfd/reloc.c: Reorganize ARM relocations. Remove ARM relocations
that are never generated. Document more of the relocations. Add
relocations for Thumb32.
* bfd/libbfd.h, bfd/bfd-in2.h: Regenerate.
* bfd/elf32-arm.c: Reorganize howto tables. Implement Thumb32
relocations.
* ld/testsuite/ld-arm/mixed-app.d: Adjust expectations for
renamed relocations.
* gas/hash.c (hash_find_n): New interface.
* gas/hash.h: Prototype it.
* gas/config/tc-arm.c: Rewrite and reorganize. Implement 32-bit
Thumb instructions.
* gas/testsuite/gas/arm: Convert all "gas_test" style tests to
"run_dump_test" style tests, for more thorough testing. Make
adjustments to expectations where necessary.
* gas/testsuite/gas/arm/t16-bad.s, gas/testsuite/gas/arm/tcompat.s
* gas/testsuite/gas/arm/tcompat2.s, gas/testsuite/gas/arm/thumb32.s:
New test cases.
* opcodes/arm-dis.c: Add support for Thumb32 instructions and
16-bit V6T2 instructions.
2005-04-13 Paul Brook <paul@codesourcery.com>
Backport from mainline.
@ -10,7 +43,7 @@
* ld/configure.tgt (arm-wrs-linux-gnueabi*): Support both big- and
little-endian.
2005-04-08 Paul Brook <paul@codesourcery.com>
* elf32-arm.c (ARM2THUMB_GLUE_SIZE): Rename...

242
include/elf/arm.h
View File

@ -38,7 +38,7 @@
#define EF_ARM_MAVERICK_FLOAT 0x800
/* Frame unwind information */
#define PT_ARM_EXIDX (PT_LOPROC + 1)
#define PT_ARM_EXIDX (PT_LOPROC + 1)
/* Other constants defined in the ARM ELF spec. version B-01. */
#define EF_ARM_SYMSARESORTED 0x04 /* NB conflicts with EF_INTERWORK */
@ -84,93 +84,159 @@
/* Relocation types. */
START_RELOC_NUMBERS (elf_arm_reloc_type)
RELOC_NUMBER (R_ARM_NONE, 0)
RELOC_NUMBER (R_ARM_PC24, 1)
RELOC_NUMBER (R_ARM_ABS32, 2)
RELOC_NUMBER (R_ARM_REL32, 3)
#ifdef OLD_ARM_ABI
RELOC_NUMBER (R_ARM_ABS8, 4)
RELOC_NUMBER (R_ARM_ABS16, 5)
RELOC_NUMBER (R_ARM_ABS12, 6)
RELOC_NUMBER (R_ARM_THM_ABS5, 7)
RELOC_NUMBER (R_ARM_THM_PC22, 8)
RELOC_NUMBER (R_ARM_SBREL32, 9)
RELOC_NUMBER (R_ARM_AMP_VCALL9, 10)
RELOC_NUMBER (R_ARM_THM_PC11, 11) /* Cygnus extension to abi: Thumb unconditional branch. */
RELOC_NUMBER (R_ARM_THM_PC9, 12) /* Cygnus extension to abi: Thumb conditional branch. */
RELOC_NUMBER (R_ARM_GNU_VTINHERIT, 13)
RELOC_NUMBER (R_ARM_GNU_VTENTRY, 14)
#else /* not OLD_ARM_ABI */
RELOC_NUMBER (R_ARM_PC13, 4)
RELOC_NUMBER (R_ARM_ABS16, 5)
RELOC_NUMBER (R_ARM_ABS12, 6)
RELOC_NUMBER (R_ARM_THM_ABS5, 7)
RELOC_NUMBER (R_ARM_ABS8, 8)
RELOC_NUMBER (R_ARM_SBREL32, 9)
RELOC_NUMBER (R_ARM_THM_PC22, 10)
RELOC_NUMBER (R_ARM_THM_PC8, 11)
RELOC_NUMBER (R_ARM_AMP_VCALL9, 12)
RELOC_NUMBER (R_ARM_SWI24, 13)
RELOC_NUMBER (R_ARM_THM_SWI8, 14)
RELOC_NUMBER (R_ARM_XPC25, 15)
RELOC_NUMBER (R_ARM_THM_XPC22, 16)
RELOC_NUMBER (R_ARM_TLS_DTPMOD32, 17)
RELOC_NUMBER (R_ARM_TLS_DTPOFF32, 18)
RELOC_NUMBER (R_ARM_TLS_TPOFF32, 19)
#endif /* not OLD_ARM_ABI */
RELOC_NUMBER (R_ARM_COPY, 20) /* Copy symbol at runtime. */
RELOC_NUMBER (R_ARM_GLOB_DAT, 21) /* Create GOT entry. */
RELOC_NUMBER (R_ARM_JUMP_SLOT, 22) /* Create PLT entry. */
RELOC_NUMBER (R_ARM_RELATIVE, 23) /* Adjust by program base. */
RELOC_NUMBER (R_ARM_GOTOFF, 24) /* 32 bit offset to GOT. */
RELOC_NUMBER (R_ARM_GOTPC, 25) /* 32 bit PC relative offset to GOT. */
RELOC_NUMBER (R_ARM_GOT32, 26) /* 32 bit GOT entry. */
RELOC_NUMBER (R_ARM_PLT32, 27) /* 32 bit PLT address. */
#ifdef OLD_ARM_ABI
FAKE_RELOC (FIRST_INVALID_RELOC, 28)
FAKE_RELOC (LAST_INVALID_RELOC, 249)
#else /* not OLD_ARM_ABI */
RELOC_NUMBER (R_ARM_CALL, 28)
RELOC_NUMBER (R_ARM_JUMP24, 29)
FAKE_RELOC (FIRST_INVALID_RELOC1, 30)
FAKE_RELOC (LAST_INVALID_RELOC1, 31)
RELOC_NUMBER (R_ARM_ALU_PCREL7_0, 32)
RELOC_NUMBER (R_ARM_ALU_PCREL15_8, 33)
RELOC_NUMBER (R_ARM_ALU_PCREL23_15, 34)
RELOC_NUMBER (R_ARM_LDR_SBREL_11_0, 35)
RELOC_NUMBER (R_ARM_ALU_SBREL_19_12, 36)
RELOC_NUMBER (R_ARM_ALU_SBREL_27_20, 37)
RELOC_NUMBER (R_ARM_TARGET1, 38)
RELOC_NUMBER (R_ARM_ROSEGREL32, 39)
RELOC_NUMBER (R_ARM_V4BX, 40)
RELOC_NUMBER (R_ARM_TARGET2, 41)
RELOC_NUMBER (R_ARM_PREL31, 42)
FAKE_RELOC (FIRST_INVALID_RELOC2, 43)
FAKE_RELOC (LAST_INVALID_RELOC2, 94)
RELOC_NUMBER (R_ARM_GOT_ABS, 95)
RELOC_NUMBER (R_ARM_GOT_PREL, 96)
RELOC_NUMBER (R_ARM_GOT_BREL12, 97)
RELOC_NUMBER (R_ARM_GOTOFF12, 98)
RELOC_NUMBER (R_ARM_GOTRELAX, 99)
RELOC_NUMBER (R_ARM_GNU_VTENTRY, 100)
RELOC_NUMBER (R_ARM_GNU_VTINHERIT, 101)
RELOC_NUMBER (R_ARM_THM_PC11, 102) /* Cygnus extension to abi: Thumb unconditional branch. */
RELOC_NUMBER (R_ARM_THM_PC9, 103) /* Cygnus extension to abi: Thumb conditional branch. */
RELOC_NUMBER (R_ARM_TLS_GD32, 104)
RELOC_NUMBER (R_ARM_TLS_LDM32, 105)
RELOC_NUMBER (R_ARM_TLS_LDO32, 106)
RELOC_NUMBER (R_ARM_TLS_IE32, 107)
RELOC_NUMBER (R_ARM_TLS_LE32, 108)
FAKE_RELOC (FIRST_INVALID_RELOC3, 109)
FAKE_RELOC (LAST_INVALID_RELOC3, 248)
RELOC_NUMBER (R_ARM_RXPC25, 249)
#endif /* not OLD_ARM_ABI */
RELOC_NUMBER (R_ARM_RSBREL32, 250)
RELOC_NUMBER (R_ARM_THM_RPC22, 251)
RELOC_NUMBER (R_ARM_RREL32, 252)
RELOC_NUMBER (R_ARM_RABS32, 253)
RELOC_NUMBER (R_ARM_RPC24, 254)
RELOC_NUMBER (R_ARM_RBASE, 255)
/* AAELF official names and numbers. */
RELOC_NUMBER (R_ARM_NONE, 0)
RELOC_NUMBER (R_ARM_PC24, 1) /* deprecated */
RELOC_NUMBER (R_ARM_ABS32, 2)
RELOC_NUMBER (R_ARM_REL32, 3)
#ifndef OLD_ARM_ABI
RELOC_NUMBER (R_ARM_LDR_PC_G0, 4)
RELOC_NUMBER (R_ARM_ABS16, 5)
RELOC_NUMBER (R_ARM_ABS12, 6)
RELOC_NUMBER (R_ARM_THM_ABS5, 7)
RELOC_NUMBER (R_ARM_ABS8, 8)
RELOC_NUMBER (R_ARM_SBREL32, 9)
RELOC_NUMBER (R_ARM_THM_CALL, 10)
RELOC_NUMBER (R_ARM_THM_PC8, 11)
RELOC_NUMBER (R_ARM_BREL_ADJ, 12)
RELOC_NUMBER (R_ARM_SWI24, 13) /* obsolete */
RELOC_NUMBER (R_ARM_THM_SWI8, 14) /* obsolete */
#else
RELOC_NUMBER (R_ARM_ABS8, 4)
RELOC_NUMBER (R_ARM_ABS16, 5)
RELOC_NUMBER (R_ARM_ABS12, 6)
RELOC_NUMBER (R_ARM_THM_ABS5, 7)
RELOC_NUMBER (R_ARM_THM_CALL, 8)
RELOC_NUMBER (R_ARM_SBREL32, 9)
RELOC_NUMBER (R_ARM_BREL_ADJ, 10)
RELOC_NUMBER (R_ARM_THM_JUMP11, 11)
RELOC_NUMBER (R_ARM_THM_JUMP8, 12)
RELOC_NUMBER (R_ARM_GNU_VTINHERIT, 13)
RELOC_NUMBER (R_ARM_GNU_VTENTRY, 14)
#endif
RELOC_NUMBER (R_ARM_XPC25, 15) /* obsolete */
RELOC_NUMBER (R_ARM_THM_XPC22, 16) /* obsolete */
RELOC_NUMBER (R_ARM_TLS_DTPMOD32, 17)
RELOC_NUMBER (R_ARM_TLS_DTPOFF32, 18)
RELOC_NUMBER (R_ARM_TLS_TPOFF32, 19)
RELOC_NUMBER (R_ARM_COPY, 20) /* Copy symbol at runtime. */
RELOC_NUMBER (R_ARM_GLOB_DAT, 21) /* Create GOT entry. */
RELOC_NUMBER (R_ARM_JUMP_SLOT, 22) /* Create PLT entry. */
RELOC_NUMBER (R_ARM_RELATIVE, 23) /* Adjust by program base. */
RELOC_NUMBER (R_ARM_GOTOFF32, 24) /* 32 bit offset to GOT. */
RELOC_NUMBER (R_ARM_BASE_PREL, 25) /* 32 bit PC relative offset to GOT. */
RELOC_NUMBER (R_ARM_GOT_BREL, 26) /* 32 bit GOT entry. */
RELOC_NUMBER (R_ARM_PLT32, 27) /* deprecated - 32 bit PLT address. */
RELOC_NUMBER (R_ARM_CALL, 28)
RELOC_NUMBER (R_ARM_JUMP24, 29)
RELOC_NUMBER (R_ARM_THM_JUMP24, 30)
RELOC_NUMBER (R_ARM_BASE_ABS, 31)
RELOC_NUMBER (R_ARM_ALU_PCREL7_0, 32) /* obsolete */
RELOC_NUMBER (R_ARM_ALU_PCREL15_8, 33) /* obsolete */
RELOC_NUMBER (R_ARM_ALU_PCREL23_15, 34) /* obsolete */
RELOC_NUMBER (R_ARM_LDR_SBREL_11_0, 35) /* deprecated, should have _NC suffix */
RELOC_NUMBER (R_ARM_ALU_SBREL_19_12, 36) /* deprecated, should have _NC suffix */
RELOC_NUMBER (R_ARM_ALU_SBREL_27_20, 37) /* deprecated, should have _CK suffix */
RELOC_NUMBER (R_ARM_TARGET1, 38)
RELOC_NUMBER (R_ARM_SBREL31, 39) /* deprecated */
RELOC_NUMBER (R_ARM_V4BX, 40)
RELOC_NUMBER (R_ARM_TARGET2, 41)
RELOC_NUMBER (R_ARM_PREL31, 42)
RELOC_NUMBER (R_ARM_MOVW_ABS_NC, 43)
RELOC_NUMBER (R_ARM_MOVT_ABS, 44)
RELOC_NUMBER (R_ARM_MOVW_PREL_NC, 45)
RELOC_NUMBER (R_ARM_MOVT_PREL, 46)
RELOC_NUMBER (R_ARM_THM_MOVW_ABS_NC, 47)
RELOC_NUMBER (R_ARM_THM_MOVT_ABS, 48)
RELOC_NUMBER (R_ARM_THM_MOVW_PREL_NC, 49)
RELOC_NUMBER (R_ARM_THM_MOVT_PREL, 50)
RELOC_NUMBER (R_ARM_THM_JUMP19, 51)
RELOC_NUMBER (R_ARM_THM_JUMP6, 52)
RELOC_NUMBER (R_ARM_THM_ALU_PREL_11_0, 53)
RELOC_NUMBER (R_ARM_THM_PC12, 54)
RELOC_NUMBER (R_ARM_ABS32_NOI, 55)
RELOC_NUMBER (R_ARM_REL32_NOI, 56)
RELOC_NUMBER (R_ARM_ALU_PC_G0_NC, 57)
RELOC_NUMBER (R_ARM_ALU_PC_G0, 58)
RELOC_NUMBER (R_ARM_ALU_PC_G1_NC, 59)
RELOC_NUMBER (R_ARM_ALU_PC_G1, 60)
RELOC_NUMBER (R_ARM_ALU_PC_G2, 61)
RELOC_NUMBER (R_ARM_LDR_PC_G1, 62)
RELOC_NUMBER (R_ARM_LDR_PC_G2, 63)
RELOC_NUMBER (R_ARM_LDRS_PC_G0, 64)
RELOC_NUMBER (R_ARM_LDRS_PC_G1, 65)
RELOC_NUMBER (R_ARM_LDRS_PC_G2, 66)
RELOC_NUMBER (R_ARM_LDC_PC_G0, 67)
RELOC_NUMBER (R_ARM_LDC_PC_G1, 68)
RELOC_NUMBER (R_ARM_LDC_PC_G2, 69)
RELOC_NUMBER (R_ARM_ALU_SB_G0_NC, 70)
RELOC_NUMBER (R_ARM_ALU_SB_G0, 71)
RELOC_NUMBER (R_ARM_ALU_SB_G1_NC, 72)
RELOC_NUMBER (R_ARM_ALU_SB_G1, 73)
RELOC_NUMBER (R_ARM_ALU_SB_G2, 74)
RELOC_NUMBER (R_ARM_LDR_SB_G0, 75)
RELOC_NUMBER (R_ARM_LDR_SB_G1, 76)
RELOC_NUMBER (R_ARM_LDR_SB_G2, 77)
RELOC_NUMBER (R_ARM_LDRS_SB_G0, 78)
RELOC_NUMBER (R_ARM_LDRS_SB_G1, 79)
RELOC_NUMBER (R_ARM_LDRS_SB_G2, 80)
RELOC_NUMBER (R_ARM_LDC_G0, 81)
RELOC_NUMBER (R_ARM_LDC_G1, 82)
RELOC_NUMBER (R_ARM_LDC_G2, 83)
RELOC_NUMBER (R_ARM_MOVW_BREL_NC, 84)
RELOC_NUMBER (R_ARM_MOVT_BREL, 85)
RELOC_NUMBER (R_ARM_MOVW_BREL, 86)
RELOC_NUMBER (R_ARM_THM_MOVW_BREL_NC, 87)
RELOC_NUMBER (R_ARM_THM_MOVT_BREL, 88)
RELOC_NUMBER (R_ARM_THM_MOVW_BREL, 89)
/* 90-93 unallocated */
RELOC_NUMBER (R_ARM_PLT32_ABS, 94)
RELOC_NUMBER (R_ARM_GOT_ABS, 95)
RELOC_NUMBER (R_ARM_GOT_PREL, 96)
RELOC_NUMBER (R_ARM_GOT_BREL12, 97)
RELOC_NUMBER (R_ARM_GOTOFF12, 98)
RELOC_NUMBER (R_ARM_GOTRELAX, 99)
#ifndef OLD_ARM_ABI
RELOC_NUMBER (R_ARM_GNU_VTENTRY, 100) /* deprecated - old C++ abi */
RELOC_NUMBER (R_ARM_GNU_VTINHERIT, 101) /* deprecated - old C++ abi */
RELOC_NUMBER (R_ARM_THM_JUMP11, 102)
RELOC_NUMBER (R_ARM_THM_JUMP8, 103)
#endif
RELOC_NUMBER (R_ARM_TLS_GD32, 104)
RELOC_NUMBER (R_ARM_TLS_LDM32, 105)
RELOC_NUMBER (R_ARM_TLS_LDO32, 106)
RELOC_NUMBER (R_ARM_TLS_IE32, 107)
RELOC_NUMBER (R_ARM_TLS_LE32, 108)
RELOC_NUMBER (R_ARM_TLS_LDO12, 109)
RELOC_NUMBER (R_ARM_TLS_LE12, 110)
RELOC_NUMBER (R_ARM_TLS_IE12GP, 111)
/* 112 - 127 private range */
RELOC_NUMBER (R_ARM_ME_TOO, 128) /* obsolete */
/* Extensions? R=read-only? */
RELOC_NUMBER (R_ARM_RXPC25, 249)
RELOC_NUMBER (R_ARM_RSBREL32, 250)
RELOC_NUMBER (R_ARM_THM_RPC22, 251)
RELOC_NUMBER (R_ARM_RREL32, 252)
RELOC_NUMBER (R_ARM_RABS32, 253)
RELOC_NUMBER (R_ARM_RPC24, 254)
RELOC_NUMBER (R_ARM_RBASE, 255)
/* Unofficial names for some of the relocs. */
FAKE_RELOC (R_ARM_GOTOFF, R_ARM_GOTOFF32) /* 32 bit offset to GOT. */
FAKE_RELOC (R_ARM_THM_PC22, R_ARM_THM_CALL)
FAKE_RELOC (R_ARM_THM_PC11, R_ARM_THM_JUMP11)
FAKE_RELOC (R_ARM_THM_PC9, R_ARM_THM_JUMP8)
/* Relocs with both a different name, and (apparently) different meaning in
GNU usage. */
FAKE_RELOC (R_ARM_GOTPC, R_ARM_BASE_PREL) /* 32 bit PC relative offset to GOT. */
FAKE_RELOC (R_ARM_GOT32, R_ARM_GOT_BREL) /* 32 bit GOT entry. */
FAKE_RELOC (R_ARM_ROSEGREL32, R_ARM_SBREL31) /* ??? */
FAKE_RELOC (R_ARM_AMP_VCALL9, R_ARM_BREL_ADJ) /* Thumb-something. Not used. */
#ifndef OLD_ARM_ABI
FAKE_RELOC (R_ARM_PC13, R_ARM_LDR_PC_G0) /* Unclear whether meaning is different. */
#endif
END_RELOC_NUMBERS (R_ARM_max)
/* The name of the note section used to identify arm variants. */