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llvm-project/lld/test/ELF/arm-target2.s

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[ELF] Move `// REQUIRES:` line to the top llvm-svn: 335676
2018-06-27 06:20:04 +08:00
// REQUIRES: arm
[ELF] Support for R_ARM_TARGET2 relocation The R_ARM_TARGET2 relocation is used in ARM exception tables to encode a data dependency that will only be dereferenced by code in the run-time support library. In a similar way to R_ARM_TARGET1 the handling of the relocation is target specific, it maps to one of R_ARM_ABS32, R_ARM_REL32 or R_ARM_GOT_PREL. The choice depends on the run-time library. R_ARM_GOT_PREL is used for linux and BSD, R_ARM_ABS32 and R_ARM_REL32 are used for bare-metal. The command line option --target2=<target> can be used to select the relocation used for R_ARM_TARGET2. The default is R_ARM_GOT_PREL. Differential revision: https://reviews.llvm.org/D25684 llvm-svn: 284404
2016-10-18 02:12:24 +08:00
// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t.o
[ARM][test] Improve tests Delete trailing 2>&1 that is not piped to another command. Add --no-show-raw-insn to objdump -d commands. llvm-svn: 366676
2019-07-22 19:37:03 +08:00
// RUN: ld.lld %t.o -o %t
[ELF] Support for R_ARM_TARGET2 relocation The R_ARM_TARGET2 relocation is used in ARM exception tables to encode a data dependency that will only be dereferenced by code in the run-time support library. In a similar way to R_ARM_TARGET1 the handling of the relocation is target specific, it maps to one of R_ARM_ABS32, R_ARM_REL32 or R_ARM_GOT_PREL. The choice depends on the run-time library. R_ARM_GOT_PREL is used for linux and BSD, R_ARM_ABS32 and R_ARM_REL32 are used for bare-metal. The command line option --target2=<target> can be used to select the relocation used for R_ARM_TARGET2. The default is R_ARM_GOT_PREL. Differential revision: https://reviews.llvm.org/D25684 llvm-svn: 284404
2016-10-18 02:12:24 +08:00
// RUN: llvm-objdump -s -triple=armv7a-none-linux-gnueabi %t | FileCheck %s
[ARM][test] Improve tests Delete trailing 2>&1 that is not piped to another command. Add --no-show-raw-insn to objdump -d commands. llvm-svn: 366676
2019-07-22 19:37:03 +08:00
// RUN: ld.lld %t.o --target2=got-rel -o %t2
[ELF] Support for R_ARM_TARGET2 relocation The R_ARM_TARGET2 relocation is used in ARM exception tables to encode a data dependency that will only be dereferenced by code in the run-time support library. In a similar way to R_ARM_TARGET1 the handling of the relocation is target specific, it maps to one of R_ARM_ABS32, R_ARM_REL32 or R_ARM_GOT_PREL. The choice depends on the run-time library. R_ARM_GOT_PREL is used for linux and BSD, R_ARM_ABS32 and R_ARM_REL32 are used for bare-metal. The command line option --target2=<target> can be used to select the relocation used for R_ARM_TARGET2. The default is R_ARM_GOT_PREL. Differential revision: https://reviews.llvm.org/D25684 llvm-svn: 284404
2016-10-18 02:12:24 +08:00
// RUN: llvm-objdump -s -triple=armv7a-none-linux-gnueabi %t2 | FileCheck %s
[ARM][test] Improve tests Delete trailing 2>&1 that is not piped to another command. Add --no-show-raw-insn to objdump -d commands. llvm-svn: 366676
2019-07-22 19:37:03 +08:00
// RUN: ld.lld %t.o --target2=abs -o %t3
[ELF] Support for R_ARM_TARGET2 relocation The R_ARM_TARGET2 relocation is used in ARM exception tables to encode a data dependency that will only be dereferenced by code in the run-time support library. In a similar way to R_ARM_TARGET1 the handling of the relocation is target specific, it maps to one of R_ARM_ABS32, R_ARM_REL32 or R_ARM_GOT_PREL. The choice depends on the run-time library. R_ARM_GOT_PREL is used for linux and BSD, R_ARM_ABS32 and R_ARM_REL32 are used for bare-metal. The command line option --target2=<target> can be used to select the relocation used for R_ARM_TARGET2. The default is R_ARM_GOT_PREL. Differential revision: https://reviews.llvm.org/D25684 llvm-svn: 284404
2016-10-18 02:12:24 +08:00
// RUN: llvm-objdump -s -triple=armv7a-none-linux-gnueabi %t3 | FileCheck -check-prefix=CHECK-ABS %s
[ARM][test] Improve tests Delete trailing 2>&1 that is not piped to another command. Add --no-show-raw-insn to objdump -d commands. llvm-svn: 366676
2019-07-22 19:37:03 +08:00
// RUN: ld.lld %t.o --target2=rel -o %t4
[ELF] Support for R_ARM_TARGET2 relocation The R_ARM_TARGET2 relocation is used in ARM exception tables to encode a data dependency that will only be dereferenced by code in the run-time support library. In a similar way to R_ARM_TARGET1 the handling of the relocation is target specific, it maps to one of R_ARM_ABS32, R_ARM_REL32 or R_ARM_GOT_PREL. The choice depends on the run-time library. R_ARM_GOT_PREL is used for linux and BSD, R_ARM_ABS32 and R_ARM_REL32 are used for bare-metal. The command line option --target2=<target> can be used to select the relocation used for R_ARM_TARGET2. The default is R_ARM_GOT_PREL. Differential revision: https://reviews.llvm.org/D25684 llvm-svn: 284404
2016-10-18 02:12:24 +08:00
// RUN: llvm-objdump -s -triple=armv7a-none-linux-gnueabi %t4 | FileCheck -check-prefix=CHECK-REL %s
// The R_ARM_TARGET2 is present in .ARM.extab sections. It can be handled as
// either R_ARM_ABS32, R_ARM_REL32 or R_ARM_GOT_PREL. For ARM linux the default
// is R_ARM_GOT_PREL. The other two options are primarily used for bare-metal,
// they can be selected with the --target2=abs or --target2=rel option.
.syntax unified
.text
.globl _start
.align 2
_start:
.type function, %function
.fnstart
bx lr
.personality __gxx_personality_v0
.handlerdata
.word _ZTIi(TARGET2)
.text
.fnend
.global __gxx_personality_v0
.type function, %function
__gxx_personality_v0:
bx lr
.rodata
_ZTIi: .word 0
// CHECK: Contents of section .ARM.extab:
[ELF][ARM] Allow PT_LOAD to have overlapping p_offset ranges on EM_ARM Port the D64906 technique to ARM. It deletes 3 alignments at PT_LOAD boundaries for the default case: the size of an arm binary decreases by at most 12kb. Reviewed By: grimar Differential Revision: https://reviews.llvm.org/D66749 llvm-svn: 370049
2019-08-27 19:52:36 +08:00
// 0x1012c + 0x2010 = 0x1213c = .got
// CHECK-NEXT: 10124 14100000 b0b0b000 10200000
[ELF] Support for R_ARM_TARGET2 relocation The R_ARM_TARGET2 relocation is used in ARM exception tables to encode a data dependency that will only be dereferenced by code in the run-time support library. In a similar way to R_ARM_TARGET1 the handling of the relocation is target specific, it maps to one of R_ARM_ABS32, R_ARM_REL32 or R_ARM_GOT_PREL. The choice depends on the run-time library. R_ARM_GOT_PREL is used for linux and BSD, R_ARM_ABS32 and R_ARM_REL32 are used for bare-metal. The command line option --target2=<target> can be used to select the relocation used for R_ARM_TARGET2. The default is R_ARM_GOT_PREL. Differential revision: https://reviews.llvm.org/D25684 llvm-svn: 284404
2016-10-18 02:12:24 +08:00
// CHECK-ABS: Contents of section .ARM.extab:
[ELF] Make non-writable non-executable PROGBITS sections closer to .text This generalizes the old heuristic placing SHT_DYNSYM SHT_DYNSTR first in the readonly SHF_ALLOC segment. Reviewers: espindola Subscribers: emaste, arichardson, llvm-commits Differential Revision: https://reviews.llvm.org/D48406 llvm-svn: 335674
2018-06-27 06:13:32 +08:00
// 0x100f0 = .rodata
[ELF][ARM] Allow PT_LOAD to have overlapping p_offset ranges on EM_ARM Port the D64906 technique to ARM. It deletes 3 alignments at PT_LOAD boundaries for the default case: the size of an arm binary decreases by at most 12kb. Reviewed By: grimar Differential Revision: https://reviews.llvm.org/D66749 llvm-svn: 370049
2019-08-27 19:52:36 +08:00
// CHECK-ABS-NEXT: 100e4 14100000 b0b0b000 f0000100
[ELF] Support for R_ARM_TARGET2 relocation The R_ARM_TARGET2 relocation is used in ARM exception tables to encode a data dependency that will only be dereferenced by code in the run-time support library. In a similar way to R_ARM_TARGET1 the handling of the relocation is target specific, it maps to one of R_ARM_ABS32, R_ARM_REL32 or R_ARM_GOT_PREL. The choice depends on the run-time library. R_ARM_GOT_PREL is used for linux and BSD, R_ARM_ABS32 and R_ARM_REL32 are used for bare-metal. The command line option --target2=<target> can be used to select the relocation used for R_ARM_TARGET2. The default is R_ARM_GOT_PREL. Differential revision: https://reviews.llvm.org/D25684 llvm-svn: 284404
2016-10-18 02:12:24 +08:00
// CHECK-REL: Contents of section .ARM.extab:
[ELF] Make non-writable non-executable PROGBITS sections closer to .text This generalizes the old heuristic placing SHT_DYNSYM SHT_DYNSTR first in the readonly SHF_ALLOC segment. Reviewers: espindola Subscribers: emaste, arichardson, llvm-commits Differential Revision: https://reviews.llvm.org/D48406 llvm-svn: 335674
2018-06-27 06:13:32 +08:00
// 0x100ec + 4 = 0x100f0 = .rodata
[ELF][ARM] Allow PT_LOAD to have overlapping p_offset ranges on EM_ARM Port the D64906 technique to ARM. It deletes 3 alignments at PT_LOAD boundaries for the default case: the size of an arm binary decreases by at most 12kb. Reviewed By: grimar Differential Revision: https://reviews.llvm.org/D66749 llvm-svn: 370049
2019-08-27 19:52:36 +08:00
// CHECK-REL-NEXT: 100e4 14100000 b0b0b000 04000000
[ELF] Support for R_ARM_TARGET2 relocation The R_ARM_TARGET2 relocation is used in ARM exception tables to encode a data dependency that will only be dereferenced by code in the run-time support library. In a similar way to R_ARM_TARGET1 the handling of the relocation is target specific, it maps to one of R_ARM_ABS32, R_ARM_REL32 or R_ARM_GOT_PREL. The choice depends on the run-time library. R_ARM_GOT_PREL is used for linux and BSD, R_ARM_ABS32 and R_ARM_REL32 are used for bare-metal. The command line option --target2=<target> can be used to select the relocation used for R_ARM_TARGET2. The default is R_ARM_GOT_PREL. Differential revision: https://reviews.llvm.org/D25684 llvm-svn: 284404
2016-10-18 02:12:24 +08:00
// CHECK: Contents of section .rodata:
[ELF] Add terminating sentinel .ARM.exidx table entry The .ARM.exidx table has an entry for each function with the first entry giving the start address of the function, the table is sorted in ascending order of function address. Given a PC value, the unwinder will search the table for the entry that contains the PC value. If the table entry happens to be the last, the range of the addresses that the final unwinding table describes will extend to the end of the address space. To prevent an incorrect address outside the address range of the program matching the last entry we follow ld.bfd's example and add a sentinel EXIDX_CANTUNWIND entry at the end of the table. This gives the final real table entry an upper bound. In addition the llvm libunwind unwinder currently depends on the presence of a sentinel entry (PR31091). Differential revision: https://reviews.llvm.org/D26977 llvm-svn: 287869
2016-11-24 19:43:55 +08:00
// CHECK-NEXT: 10130 00000000
[ELF] Support for R_ARM_TARGET2 relocation The R_ARM_TARGET2 relocation is used in ARM exception tables to encode a data dependency that will only be dereferenced by code in the run-time support library. In a similar way to R_ARM_TARGET1 the handling of the relocation is target specific, it maps to one of R_ARM_ABS32, R_ARM_REL32 or R_ARM_GOT_PREL. The choice depends on the run-time library. R_ARM_GOT_PREL is used for linux and BSD, R_ARM_ABS32 and R_ARM_REL32 are used for bare-metal. The command line option --target2=<target> can be used to select the relocation used for R_ARM_TARGET2. The default is R_ARM_GOT_PREL. Differential revision: https://reviews.llvm.org/D25684 llvm-svn: 284404
2016-10-18 02:12:24 +08:00
// CHECK-ABS: Contents of section .rodata:
[ELF] Add terminating sentinel .ARM.exidx table entry The .ARM.exidx table has an entry for each function with the first entry giving the start address of the function, the table is sorted in ascending order of function address. Given a PC value, the unwinder will search the table for the entry that contains the PC value. If the table entry happens to be the last, the range of the addresses that the final unwinding table describes will extend to the end of the address space. To prevent an incorrect address outside the address range of the program matching the last entry we follow ld.bfd's example and add a sentinel EXIDX_CANTUNWIND entry at the end of the table. This gives the final real table entry an upper bound. In addition the llvm libunwind unwinder currently depends on the presence of a sentinel entry (PR31091). Differential revision: https://reviews.llvm.org/D26977 llvm-svn: 287869
2016-11-24 19:43:55 +08:00
// CHECK-ABS-NEXT: 100f0 00000000
[ELF] Support for R_ARM_TARGET2 relocation The R_ARM_TARGET2 relocation is used in ARM exception tables to encode a data dependency that will only be dereferenced by code in the run-time support library. In a similar way to R_ARM_TARGET1 the handling of the relocation is target specific, it maps to one of R_ARM_ABS32, R_ARM_REL32 or R_ARM_GOT_PREL. The choice depends on the run-time library. R_ARM_GOT_PREL is used for linux and BSD, R_ARM_ABS32 and R_ARM_REL32 are used for bare-metal. The command line option --target2=<target> can be used to select the relocation used for R_ARM_TARGET2. The default is R_ARM_GOT_PREL. Differential revision: https://reviews.llvm.org/D25684 llvm-svn: 284404
2016-10-18 02:12:24 +08:00
// CHECK-REL: Contents of section .rodata:
[ELF] Add terminating sentinel .ARM.exidx table entry The .ARM.exidx table has an entry for each function with the first entry giving the start address of the function, the table is sorted in ascending order of function address. Given a PC value, the unwinder will search the table for the entry that contains the PC value. If the table entry happens to be the last, the range of the addresses that the final unwinding table describes will extend to the end of the address space. To prevent an incorrect address outside the address range of the program matching the last entry we follow ld.bfd's example and add a sentinel EXIDX_CANTUNWIND entry at the end of the table. This gives the final real table entry an upper bound. In addition the llvm libunwind unwinder currently depends on the presence of a sentinel entry (PR31091). Differential revision: https://reviews.llvm.org/D26977 llvm-svn: 287869
2016-11-24 19:43:55 +08:00
// CHECK-REL-NEXT: 100f0 00000000
[ELF] Support for R_ARM_TARGET2 relocation The R_ARM_TARGET2 relocation is used in ARM exception tables to encode a data dependency that will only be dereferenced by code in the run-time support library. In a similar way to R_ARM_TARGET1 the handling of the relocation is target specific, it maps to one of R_ARM_ABS32, R_ARM_REL32 or R_ARM_GOT_PREL. The choice depends on the run-time library. R_ARM_GOT_PREL is used for linux and BSD, R_ARM_ABS32 and R_ARM_REL32 are used for bare-metal. The command line option --target2=<target> can be used to select the relocation used for R_ARM_TARGET2. The default is R_ARM_GOT_PREL. Differential revision: https://reviews.llvm.org/D25684 llvm-svn: 284404
2016-10-18 02:12:24 +08:00
// CHECK: Contents of section .got:
[ELF] Add terminating sentinel .ARM.exidx table entry The .ARM.exidx table has an entry for each function with the first entry giving the start address of the function, the table is sorted in ascending order of function address. Given a PC value, the unwinder will search the table for the entry that contains the PC value. If the table entry happens to be the last, the range of the addresses that the final unwinding table describes will extend to the end of the address space. To prevent an incorrect address outside the address range of the program matching the last entry we follow ld.bfd's example and add a sentinel EXIDX_CANTUNWIND entry at the end of the table. This gives the final real table entry an upper bound. In addition the llvm libunwind unwinder currently depends on the presence of a sentinel entry (PR31091). Differential revision: https://reviews.llvm.org/D26977 llvm-svn: 287869
2016-11-24 19:43:55 +08:00
// 10130 = _ZTIi
[ELF][ARM] Allow PT_LOAD to have overlapping p_offset ranges on EM_ARM Port the D64906 technique to ARM. It deletes 3 alignments at PT_LOAD boundaries for the default case: the size of an arm binary decreases by at most 12kb. Reviewed By: grimar Differential Revision: https://reviews.llvm.org/D66749 llvm-svn: 370049
2019-08-27 19:52:36 +08:00
// CHECK-NEXT: 1213c 30010100