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* arm.cc: Added support for the ARM relocations:
R_ARM_MOVW_BREL_NC, R_ARM_MOVT_BREL, R_ARM_MOVW_BREL, R_ARM_THM_MOVW_BREL_NC, R_ARM_THM_MOVT_BREL, R_ARM_THM_MOVW_BREL. (Arm_relocate_functions::movw_rel_nc): Renamed (was movw_prel_nc). (Arm_relocate_functions::movw_rel): New method. (Arm_relocate_functions::movt_rel): Renamed (was movt_prel). (Arm_relocate_functions::thm_movw_rel_nc): Renamed (was thm_movw_prel_nc). (Arm_relocate_functions::thm_movw_rel): New method. (Arm_relocate_functions::thm_movt_rel): Renamed (was thm_movt_prel). (Target_arm::Scan::local): Handle MOVW_BREL/MOVT_BREL relocations. (Target_arm::Scan::global): Likewise. (Target_arm::Relocate::relocate): Likewise. (Target_arm::Relocatable_size_for_reloc::get_size_for_reloc): Likewise.
This commit is contained in:
Ian Lance Taylor
parent
2b00904856
commit
02961d7edf
@ -1,3 +1,24 @@
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2010-01-29 Viktor Kutuzov <vkutuzov@accesssoftek.com>
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* arm.cc: Added support for the ARM relocations:
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R_ARM_MOVW_BREL_NC, R_ARM_MOVT_BREL, R_ARM_MOVW_BREL,
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R_ARM_THM_MOVW_BREL_NC, R_ARM_THM_MOVT_BREL, R_ARM_THM_MOVW_BREL.
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(Arm_relocate_functions::movw_rel_nc): Renamed (was
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movw_prel_nc).
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(Arm_relocate_functions::movw_rel): New method.
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(Arm_relocate_functions::movt_rel): Renamed (was movt_prel).
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(Arm_relocate_functions::thm_movw_rel_nc): Renamed (was
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thm_movw_prel_nc).
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(Arm_relocate_functions::thm_movw_rel): New method.
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(Arm_relocate_functions::thm_movt_rel): Renamed (was
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thm_movt_prel).
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(Target_arm::Scan::local): Handle MOVW_BREL/MOVT_BREL
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relocations.
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(Target_arm::Scan::global): Likewise.
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(Target_arm::Relocate::relocate): Likewise.
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(Target_arm::Relocatable_size_for_reloc::get_size_for_reloc):
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Likewise.
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2010-01-27 Viktor Kutuzov <vkutuzov@accesssoftek.com>
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* arm.cc: Added support for ARM group relocations.
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164
gold/arm.cc
164
gold/arm.cc
@ -109,12 +109,6 @@ const int32_t THM2_MAX_BWD_BRANCH_OFFSET = (-(1 << 24) + 4);
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// R_ARM_THM_ALU_PREL_11_0
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// R_ARM_THM_PC12
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// R_ARM_REL32_NOI
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// R_ARM_MOVW_BREL_NC
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// R_ARM_MOVT_BREL
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// R_ARM_MOVW_BREL
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// R_ARM_THM_MOVW_BREL_NC
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// R_ARM_THM_MOVT_BREL
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// R_ARM_THM_MOVW_BREL
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// R_ARM_PLT32_ABS
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// R_ARM_GOT_ABS
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// R_ARM_GOT_BREL12
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@ -3155,12 +3149,13 @@ class Arm_relocate_functions : public Relocate_functions<32, big_endian>
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}
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// R_ARM_MOVW_PREL_NC: (S + A) | T - P
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// R_ARM_MOVW_BREL_NC: ((S + A) | T) – B(S)
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static inline typename This::Status
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movw_prel_nc(unsigned char *view,
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const Sized_relobj<32, big_endian>* object,
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const Symbol_value<32>* psymval,
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Arm_address address,
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Arm_address thumb_bit)
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movw_rel_nc(unsigned char* view,
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const Sized_relobj<32, big_endian>* object,
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const Symbol_value<32>* psymval,
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Arm_address address,
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Arm_address thumb_bit)
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{
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typedef typename elfcpp::Swap<32, big_endian>::Valtype Valtype;
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Valtype* wv = reinterpret_cast<Valtype*>(view);
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@ -3172,12 +3167,32 @@ class Arm_relocate_functions : public Relocate_functions<32, big_endian>
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return This::STATUS_OKAY;
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}
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// R_ARM_MOVT_PREL: S + A - P
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// R_ARM_MOVW_BREL: ((S + A) | T) – B(S)
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static inline typename This::Status
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movt_prel(unsigned char *view,
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const Sized_relobj<32, big_endian>* object,
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const Symbol_value<32>* psymval,
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Arm_address address)
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movw_rel(unsigned char* view,
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const Sized_relobj<32, big_endian>* object,
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const Symbol_value<32>* psymval,
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Arm_address address,
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Arm_address thumb_bit)
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{
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typedef typename elfcpp::Swap<32, big_endian>::Valtype Valtype;
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Valtype* wv = reinterpret_cast<Valtype*>(view);
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Valtype val = elfcpp::Swap<32, big_endian>::readval(wv);
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Valtype addend = This::extract_arm_movw_movt_addend(val);
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Valtype x = (psymval->value(object, addend) | thumb_bit) - address;
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val = This::insert_val_arm_movw_movt(val, x);
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elfcpp::Swap<32, big_endian>::writeval(wv, val);
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return ((x >= 0x10000) ?
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This::STATUS_OVERFLOW : This::STATUS_OKAY);
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}
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// R_ARM_MOVT_PREL: S + A - P
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// R_ARM_MOVT_BREL: S + A – B(S)
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static inline typename This::Status
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movt_rel(unsigned char* view,
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const Sized_relobj<32, big_endian>* object,
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const Symbol_value<32>* psymval,
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Arm_address address)
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{
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typedef typename elfcpp::Swap<32, big_endian>::Valtype Valtype;
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Valtype* wv = reinterpret_cast<Valtype*>(view);
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@ -3190,12 +3205,13 @@ class Arm_relocate_functions : public Relocate_functions<32, big_endian>
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}
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// R_ARM_THM_MOVW_PREL_NC: (S + A) | T - P
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// R_ARM_THM_MOVW_BREL_NC: ((S + A) | T) – B(S)
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static inline typename This::Status
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thm_movw_prel_nc(unsigned char *view,
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const Sized_relobj<32, big_endian>* object,
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const Symbol_value<32>* psymval,
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Arm_address address,
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Arm_address thumb_bit)
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thm_movw_rel_nc(unsigned char *view,
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const Sized_relobj<32, big_endian>* object,
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const Symbol_value<32>* psymval,
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Arm_address address,
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Arm_address thumb_bit)
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{
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typedef typename elfcpp::Swap<16, big_endian>::Valtype Valtype;
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typedef typename elfcpp::Swap<32, big_endian>::Valtype Reltype;
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@ -3210,12 +3226,35 @@ class Arm_relocate_functions : public Relocate_functions<32, big_endian>
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return This::STATUS_OKAY;
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}
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// R_ARM_THM_MOVT_PREL: S + A - P
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// R_ARM_THM_MOVW_BREL: ((S + A) | T) – B(S)
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static inline typename This::Status
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thm_movt_prel(unsigned char *view,
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const Sized_relobj<32, big_endian>* object,
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const Symbol_value<32>* psymval,
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Arm_address address)
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thm_movw_rel(unsigned char *view,
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const Sized_relobj<32, big_endian>* object,
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const Symbol_value<32>* psymval,
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Arm_address address,
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Arm_address thumb_bit)
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{
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typedef typename elfcpp::Swap<16, big_endian>::Valtype Valtype;
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typedef typename elfcpp::Swap<32, big_endian>::Valtype Reltype;
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Valtype* wv = reinterpret_cast<Valtype*>(view);
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Reltype val = (elfcpp::Swap<16, big_endian>::readval(wv) << 16)
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| elfcpp::Swap<16, big_endian>::readval(wv + 1);
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Reltype addend = This::extract_thumb_movw_movt_addend(val);
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Reltype x = (psymval->value(object, addend) | thumb_bit) - address;
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val = This::insert_val_thumb_movw_movt(val, x);
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elfcpp::Swap<16, big_endian>::writeval(wv, val >> 16);
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elfcpp::Swap<16, big_endian>::writeval(wv + 1, val & 0xffff);
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return ((x >= 0x10000) ?
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This::STATUS_OVERFLOW : This::STATUS_OKAY);
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}
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// R_ARM_THM_MOVT_PREL: S + A - P
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// R_ARM_THM_MOVT_BREL: S + A – B(S)
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static inline typename This::Status
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thm_movt_rel(unsigned char* view,
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const Sized_relobj<32, big_endian>* object,
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const Symbol_value<32>* psymval,
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Arm_address address)
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{
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typedef typename elfcpp::Swap<16, big_endian>::Valtype Valtype;
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typedef typename elfcpp::Swap<32, big_endian>::Valtype Reltype;
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@ -6514,6 +6553,12 @@ Target_arm<big_endian>::Scan::local(Symbol_table* symtab,
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case elfcpp::R_ARM_MOVT_PREL:
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case elfcpp::R_ARM_THM_MOVW_PREL_NC:
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case elfcpp::R_ARM_THM_MOVT_PREL:
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case elfcpp::R_ARM_MOVW_BREL_NC:
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case elfcpp::R_ARM_MOVT_BREL:
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case elfcpp::R_ARM_MOVW_BREL:
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case elfcpp::R_ARM_THM_MOVW_BREL_NC:
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case elfcpp::R_ARM_THM_MOVT_BREL:
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case elfcpp::R_ARM_THM_MOVW_BREL:
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case elfcpp::R_ARM_THM_JUMP6:
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case elfcpp::R_ARM_THM_JUMP8:
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case elfcpp::R_ARM_THM_JUMP11:
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@ -6674,6 +6719,12 @@ Target_arm<big_endian>::Scan::global(Symbol_table* symtab,
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case elfcpp::R_ARM_MOVT_PREL:
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case elfcpp::R_ARM_THM_MOVW_PREL_NC:
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case elfcpp::R_ARM_THM_MOVT_PREL:
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case elfcpp::R_ARM_MOVW_BREL_NC:
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case elfcpp::R_ARM_MOVT_BREL:
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case elfcpp::R_ARM_MOVW_BREL:
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case elfcpp::R_ARM_THM_MOVW_BREL_NC:
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case elfcpp::R_ARM_THM_MOVT_BREL:
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case elfcpp::R_ARM_THM_MOVW_BREL:
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case elfcpp::R_ARM_THM_JUMP6:
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case elfcpp::R_ARM_THM_JUMP8:
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case elfcpp::R_ARM_THM_JUMP11:
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@ -7303,27 +7354,62 @@ Target_arm<big_endian>::Relocate::relocate(
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break;
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case elfcpp::R_ARM_MOVW_PREL_NC:
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reloc_status = Arm_relocate_functions::movw_prel_nc(view, object,
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psymval, address,
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thumb_bit);
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reloc_status = Arm_relocate_functions::movw_rel_nc(view, object,
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psymval, address,
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thumb_bit);
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break;
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case elfcpp::R_ARM_MOVW_BREL_NC:
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reloc_status = Arm_relocate_functions::movw_rel_nc(view, object,
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psymval, sym_origin,
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thumb_bit);
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break;
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case elfcpp::R_ARM_MOVW_BREL:
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reloc_status = Arm_relocate_functions::movw_rel(view, object,
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psymval, sym_origin,
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thumb_bit);
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break;
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case elfcpp::R_ARM_MOVT_PREL:
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reloc_status = Arm_relocate_functions::movt_prel(view, object,
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psymval, address);
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reloc_status = Arm_relocate_functions::movt_rel(view, object,
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psymval, address);
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break;
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case elfcpp::R_ARM_MOVT_BREL:
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reloc_status = Arm_relocate_functions::movt_rel(view, object,
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psymval, sym_origin);
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break;
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case elfcpp::R_ARM_THM_MOVW_PREL_NC:
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reloc_status = Arm_relocate_functions::thm_movw_prel_nc(view, object,
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psymval, address,
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thumb_bit);
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reloc_status = Arm_relocate_functions::thm_movw_rel_nc(view, object,
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psymval, address,
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thumb_bit);
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break;
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case elfcpp::R_ARM_THM_MOVW_BREL_NC:
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reloc_status = Arm_relocate_functions::thm_movw_rel_nc(view, object,
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psymval,
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sym_origin,
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thumb_bit);
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break;
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case elfcpp::R_ARM_THM_MOVW_BREL:
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reloc_status = Arm_relocate_functions::thm_movw_rel(view, object,
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psymval, sym_origin,
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thumb_bit);
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break;
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case elfcpp::R_ARM_THM_MOVT_PREL:
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reloc_status = Arm_relocate_functions::thm_movt_prel(view, object,
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psymval, address);
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reloc_status = Arm_relocate_functions::thm_movt_rel(view, object,
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psymval, address);
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break;
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case elfcpp::R_ARM_THM_MOVT_BREL:
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reloc_status = Arm_relocate_functions::thm_movt_rel(view, object,
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psymval, sym_origin);
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break;
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case elfcpp::R_ARM_REL32:
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reloc_status = Arm_relocate_functions::rel32(view, object, psymval,
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address, thumb_bit);
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@ -7785,6 +7871,12 @@ Target_arm<big_endian>::Relocatable_size_for_reloc::get_size_for_reloc(
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case elfcpp::R_ARM_MOVT_PREL:
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case elfcpp::R_ARM_THM_MOVW_PREL_NC:
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case elfcpp::R_ARM_THM_MOVT_PREL:
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case elfcpp::R_ARM_MOVW_BREL_NC:
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case elfcpp::R_ARM_MOVT_BREL:
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case elfcpp::R_ARM_MOVW_BREL:
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case elfcpp::R_ARM_THM_MOVW_BREL_NC:
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case elfcpp::R_ARM_THM_MOVT_BREL:
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case elfcpp::R_ARM_THM_MOVW_BREL:
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case elfcpp::R_ARM_V4BX:
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case elfcpp::R_ARM_ALU_PC_G0_NC:
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case elfcpp::R_ARM_ALU_PC_G0:
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