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llvm-project/lld/test/ELF/arm-pie-relative.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][ARM] Add --no-show-raw-insn and -soname to some ARM tests Delete some insignificant addresses to make it simpler for layout changes. llvm-svn: 370048
2019-08-27 19:50:27 +08:00
// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t.o
[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
// RUN: ld.lld %t.o --pie -o %t
[ELF][ARM] Add --no-show-raw-insn and -soname to some ARM tests Delete some insignificant addresses to make it simpler for layout changes. llvm-svn: 370048
2019-08-27 19:50:27 +08:00
// RUN: llvm-readobj -r %t | FileCheck %s
// RUN: llvm-readelf -x .got %t | FileCheck %s --check-prefix=GOT
[ELF] Add R_ARM_RELATIVE to relocations that can be applied to GotSection When compiling -fpie and linking with the --pie option the R_ARM_GOTBREL relocation to D is resolved by writing the value of D into the .got slot and emitting an R_ARM_RELATIVE relocation for it. This changes adds the R_ARM_RELATIVE relocation to the switch in relocateOne() so we can process the GotSection relocation to write the value of the variable as well as emitting the dynamic relocation. Differential revision: https://reviews.llvm.org/D27678 llvm-svn: 289527
2016-12-13 18:42:05 +08:00
// Test that a R_ARM_GOT_BREL relocation with PIE results in a R_ARM_RELATIVE
// dynamic relocation
.syntax unified
.text
.global _start
_start:
.word sym(GOT)
.data
.global sym
sym:
.word 0
// CHECK: Relocations [
[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: Section (5) .rel.dyn {
[ELF] Set DF_1_PIE for -pie DF_1_PIE originated from Solaris (https://docs.oracle.com/cd/E36784_01/html/E36857/chapter6-42444.html ). GNU ld since https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=5fe2850dd96483f176858fd75c098313d5b20bc2 sets the flag on non-Solaris platforms. It can help distinguish PIE from ET_DYN. eu-classify from elfutils uses this to recognize PIE (https://sourceware.org/git/?p=elfutils.git;a=commit;h=3f489b5c7c78df6d52f8982f79c36e9a220e8951 ) glibc uses this flag to reject dlopen'ing a PIE (https://sourceware.org/bugzilla/show_bug.cgi?id=24323 ) Reviewed By: psmith Differential Revision: https://reviews.llvm.org/D80872
2020-06-02 01:17:48 +08:00
// CHECK-NEXT: 0x201E4 R_ARM_RELATIVE
[ELF] Add R_ARM_RELATIVE to relocations that can be applied to GotSection When compiling -fpie and linking with the --pie option the R_ARM_GOTBREL relocation to D is resolved by writing the value of D into the .got slot and emitting an R_ARM_RELATIVE relocation for it. This changes adds the R_ARM_RELATIVE relocation to the switch in relocateOne() so we can process the GotSection relocation to write the value of the variable as well as emitting the dynamic relocation. Differential revision: https://reviews.llvm.org/D27678 llvm-svn: 289527
2016-12-13 18:42:05 +08:00
[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
// GOT: section '.got':
[ELF] Set DF_1_PIE for -pie DF_1_PIE originated from Solaris (https://docs.oracle.com/cd/E36784_01/html/E36857/chapter6-42444.html ). GNU ld since https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=5fe2850dd96483f176858fd75c098313d5b20bc2 sets the flag on non-Solaris platforms. It can help distinguish PIE from ET_DYN. eu-classify from elfutils uses this to recognize PIE (https://sourceware.org/git/?p=elfutils.git;a=commit;h=3f489b5c7c78df6d52f8982f79c36e9a220e8951 ) glibc uses this flag to reject dlopen'ing a PIE (https://sourceware.org/bugzilla/show_bug.cgi?id=24323 ) Reviewed By: psmith Differential Revision: https://reviews.llvm.org/D80872
2020-06-02 01:17:48 +08:00
// GOT-NEXT: 0x000201e4 e8010300