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llvm-project/lld/test/ELF/aarch64-prel16.s

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[ELF/AArch64] Fix overflow checks for R_AARCH64_{ABS,PREL}{16,32} relocations. ABI specifies the allowed range for these relocations as 2^(n-1) <= X < 2^n. The patch fixes checks and introduces precise tests for these relocations. Differential revision: http://reviews.llvm.org/D14957 llvm-svn: 254146
2015-11-26 18:05:24 +08:00
// REQUIRES: aarch64
// RUN: llvm-mc -filetype=obj -triple=aarch64-none-freebsd %s -o %t.o
// RUN: llvm-mc -filetype=obj -triple=aarch64-none-freebsd %S/Inputs/abs255.s -o %t255.o
// RUN: llvm-mc -filetype=obj -triple=aarch64-none-freebsd %S/Inputs/abs256.s -o %t256.o
// RUN: llvm-mc -filetype=obj -triple=aarch64-none-freebsd %S/Inputs/abs257.s -o %t257.o
[ELF/AArch64] Allow only valid dynamic relocations in the output. All relocations, which cannot be handled by the dynamic linker, cause a linking error "rebuild with -fPIC". Differential revision: http://reviews.llvm.org/D15193 llvm-svn: 254840
2015-12-05 14:20:24 +08:00
.globl _start
_start:
[ELF/AArch64] Fix overflow checks for R_AARCH64_{ABS,PREL}{16,32} relocations. ABI specifies the allowed range for these relocations as 2^(n-1) <= X < 2^n. The patch fixes checks and introduces precise tests for these relocations. Differential revision: http://reviews.llvm.org/D14957 llvm-svn: 254146
2015-11-26 18:05:24 +08:00
.data
Align AArch64 and i386 image base to superpage Summary: As for x86_64, the default image base for AArch64 and i386 should be aligned to a superpage appropriate for the architecture. On AArch64, this is 2 MiB, on i386 it is 4 MiB. Reviewers: emaste, grimar, javed.absar, espindola, ruiu, peter.smith, srhines, rprichard Reviewed By: ruiu, peter.smith Subscribers: jfb, markj, arichardson, krytarowski, kristof.beyls, llvm-commits Differential Revision: https://reviews.llvm.org/D50297 llvm-svn: 342746
2018-09-22 00:58:13 +08:00
.hword foo - . + 0x210eff
.hword foo - . + 0x1f8f02
[ELF/AArch64] Fix overflow checks for R_AARCH64_{ABS,PREL}{16,32} relocations. ABI specifies the allowed range for these relocations as 2^(n-1) <= X < 2^n. The patch fixes checks and introduces precise tests for these relocations. Differential revision: http://reviews.llvm.org/D14957 llvm-svn: 254146
2015-11-26 18:05:24 +08:00
[ELF/AArch64] Allow only valid dynamic relocations in the output. All relocations, which cannot be handled by the dynamic linker, cause a linking error "rebuild with -fPIC". Differential revision: http://reviews.llvm.org/D15193 llvm-svn: 254840
2015-12-05 14:20:24 +08:00
// Note: If this test fails, it probably happens because of
[ELF/AArch64] Fix overflow checks for R_AARCH64_{ABS,PREL}{16,32} relocations. ABI specifies the allowed range for these relocations as 2^(n-1) <= X < 2^n. The patch fixes checks and introduces precise tests for these relocations. Differential revision: http://reviews.llvm.org/D14957 llvm-svn: 254146
2015-11-26 18:05:24 +08:00
// the change of the address of the .data section.
// You may found the correct address in the aarch64_abs16.s test,
[ELF/AArch64] Allow only valid dynamic relocations in the output. All relocations, which cannot be handled by the dynamic linker, cause a linking error "rebuild with -fPIC". Differential revision: http://reviews.llvm.org/D15193 llvm-svn: 254840
2015-12-05 14:20:24 +08:00
// if it is already fixed. Then, update addends accordingly.
[ELF] Set max page size to 64K for AArch64 Differential revision: https://reviews.llvm.org/D25079 llvm-svn: 283200
2016-10-04 16:58:55 +08:00
// RUN: ld.lld -z max-page-size=4096 %t.o %t256.o -o %t2
[ELF/AArch64] Allow only valid dynamic relocations in the output. All relocations, which cannot be handled by the dynamic linker, cause a linking error "rebuild with -fPIC". Differential revision: http://reviews.llvm.org/D15193 llvm-svn: 254840
2015-12-05 14:20:24 +08:00
// RUN: llvm-objdump -s -section=.data %t2 | FileCheck %s
[ELF/AArch64] Fix overflow checks for R_AARCH64_{ABS,PREL}{16,32} relocations. ABI specifies the allowed range for these relocations as 2^(n-1) <= X < 2^n. The patch fixes checks and introduces precise tests for these relocations. Differential revision: http://reviews.llvm.org/D14957 llvm-svn: 254146
2015-11-26 18:05:24 +08:00
// CHECK: Contents of section .data:
Align AArch64 and i386 image base to superpage Summary: As for x86_64, the default image base for AArch64 and i386 should be aligned to a superpage appropriate for the architecture. On AArch64, this is 2 MiB, on i386 it is 4 MiB. Reviewers: emaste, grimar, javed.absar, espindola, ruiu, peter.smith, srhines, rprichard Reviewed By: ruiu, peter.smith Subscribers: jfb, markj, arichardson, krytarowski, kristof.beyls, llvm-commits Differential Revision: https://reviews.llvm.org/D50297 llvm-svn: 342746
2018-09-22 00:58:13 +08:00
// 201000: S = 0x100, A = 0x210eff, P = 0x201000
// S + A - P = 0xffff
// 201002: S = 0x100, A = 0x1f8f02, P = 0x201002
// S + A - P = 0x8000
// CHECK-NEXT: 201000 ffff0080
[ELF/AArch64] Fix overflow checks for R_AARCH64_{ABS,PREL}{16,32} relocations. ABI specifies the allowed range for these relocations as 2^(n-1) <= X < 2^n. The patch fixes checks and introduces precise tests for these relocations. Differential revision: http://reviews.llvm.org/D14957 llvm-svn: 254146
2015-11-26 18:05:24 +08:00
Align AArch64 and i386 image base to superpage Summary: As for x86_64, the default image base for AArch64 and i386 should be aligned to a superpage appropriate for the architecture. On AArch64, this is 2 MiB, on i386 it is 4 MiB. Reviewers: emaste, grimar, javed.absar, espindola, ruiu, peter.smith, srhines, rprichard Reviewed By: ruiu, peter.smith Subscribers: jfb, markj, arichardson, krytarowski, kristof.beyls, llvm-commits Differential Revision: https://reviews.llvm.org/D50297 llvm-svn: 342746
2018-09-22 00:58:13 +08:00
// RUN: not ld.lld -z max-page-size=4096 %t.o %t255.o -o %t2 2>&1 | FileCheck %s --check-prefix=OVERFLOW1
[ELF][PPC][X86] Use [-2**(n-1), 2**n) to check overflows for R_PPC_ADDR16, R_PPC64_ADDR{16,32}, R_X86_64_{8,16} Similar to R_AARCH64_ABS32, R_PPC64_ADDR32 can represent either a signed value or unsigned value, thus we should use `[-2**(n-1), 2**n)` instead of `[-2**(n-1), 2**(n-1))` to check overflows. The issue manifests as a bogus linker error when linking the powerpc64le Linux kernel. The new behavior is compatible with ld.bfd's complain_overflow_bitfield. The upper bound of the error message is not correct. Fix it as well. The changes to R_PPC_ADDR16, R_PPC64_ADDR16, R_X86_64_8 and R_X86_64_16 are similar. Reviewed By: ruiu Differential Revision: https://reviews.llvm.org/D63690 llvm-svn: 364164
2019-06-24 13:37:20 +08:00
// OVERFLOW1: relocation R_AARCH64_PREL16 out of range: -32769 is not in [-32768, 65535]
Align AArch64 and i386 image base to superpage Summary: As for x86_64, the default image base for AArch64 and i386 should be aligned to a superpage appropriate for the architecture. On AArch64, this is 2 MiB, on i386 it is 4 MiB. Reviewers: emaste, grimar, javed.absar, espindola, ruiu, peter.smith, srhines, rprichard Reviewed By: ruiu, peter.smith Subscribers: jfb, markj, arichardson, krytarowski, kristof.beyls, llvm-commits Differential Revision: https://reviews.llvm.org/D50297 llvm-svn: 342746
2018-09-22 00:58:13 +08:00
// RUN: not ld.lld -z max-page-size=4096 %t.o %t257.o -o %t2 2>&1 | FileCheck %s --check-prefix=OVERFLOW2
[ELF][PPC][X86] Use [-2**(n-1), 2**n) to check overflows for R_PPC_ADDR16, R_PPC64_ADDR{16,32}, R_X86_64_{8,16} Similar to R_AARCH64_ABS32, R_PPC64_ADDR32 can represent either a signed value or unsigned value, thus we should use `[-2**(n-1), 2**n)` instead of `[-2**(n-1), 2**(n-1))` to check overflows. The issue manifests as a bogus linker error when linking the powerpc64le Linux kernel. The new behavior is compatible with ld.bfd's complain_overflow_bitfield. The upper bound of the error message is not correct. Fix it as well. The changes to R_PPC_ADDR16, R_PPC64_ADDR16, R_X86_64_8 and R_X86_64_16 are similar. Reviewed By: ruiu Differential Revision: https://reviews.llvm.org/D63690 llvm-svn: 364164
2019-06-24 13:37:20 +08:00
// OVERFLOW2: relocation R_AARCH64_PREL16 out of range: 65536 is not in [-32768, 65535]