ee9a251caf
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
30 lines
1.2 KiB
ArmAsm
30 lines
1.2 KiB
ArmAsm
# REQUIRES: riscv
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# RUN: llvm-mc -filetype=obj -triple=riscv32 %s -o %t.32.o
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# RUN: ld.lld -pie %t.32.o -o %t.32
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# RUN: llvm-readelf -s %t.32 | FileCheck --check-prefix=SYM32 %s
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# RUN: llvm-readelf -S %t.32 | FileCheck --check-prefix=SEC32 %s
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# RUN: not ld.lld -shared %t.32.o -o /dev/null 2>&1 | FileCheck --check-prefix=ERR %s
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# RUN: llvm-mc -filetype=obj -triple=riscv64 %s -o %t.64.o
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# RUN: ld.lld -pie %t.64.o -o %t.64
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# RUN: llvm-readelf -s %t.64 | FileCheck --check-prefix=SYM64 %s
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# RUN: llvm-readelf -S %t.64 | FileCheck --check-prefix=SEC64 %s
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# RUN: not ld.lld -shared %t.64.o -o /dev/null 2>&1 | FileCheck --check-prefix=ERR %s
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## __global_pointer$ = .sdata+0x800 = 0x39c0
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# SEC32: [ 7] .sdata PROGBITS {{0*}}000031c0
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# SYM32: {{0*}}000039c0 0 NOTYPE GLOBAL DEFAULT 7 __global_pointer$
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# SEC64: [ 7] .sdata PROGBITS {{0*}}000032e0
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# SYM64: {{0*}}00003ae0 0 NOTYPE GLOBAL DEFAULT 7 __global_pointer$
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## __global_pointer$ - 0x1000 = 4096*3-2048
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# DIS: 1000: auipc gp, 3
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# DIS-NEXT: addi gp, gp, -2048
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# ERR: error: relocation R_RISCV_PCREL_HI20 cannot be used against symbol __global_pointer$; recompile with -fPIC
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lla gp, __global_pointer$
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.section .sdata,"aw"
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