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hanchenye-llvm-project/lld/test/ELF/copy-rel-pie2.s

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[ELF] Move (copy relocation/canonical PLT) before error checking In processRelocAux(), we handle errors before copy relocation/canonical PLT. This makes error checking a bit complex because we have to check for conditions that will be allowed by copy relocation/canonical PLT. Instead, move copy relocation/canonical PLT before error checking. This simplifies the previous clumsy error checking code `config->shared || (config->pie && expr == R_ABS && type != target->symbolicRel)` to the simple `config->isPic`. Some diagnostics can be reported in different ways. The code motion changes diagnostics for some contrived test cases: * copy-rel-pie-error.s -> copy-rel-pie2.s: It was rejected before but accepted now. ld.bfd also accepts the case. * copy-errors.s: "cannot preempt symbol" changes to "symbol 'bar' has no type" * got32{,x}-i386.s: the suggestion changes from "-fPIC or -Wl,-z,notext" to "-fPIE" * x86-64-dyn-rel-error5.s: one diagnostic changes for -pie case Reviewed By: peter.smith Differential Revision: https://reviews.llvm.org/D66007 llvm-svn: 369262
2019-08-19 22:30:12 +08:00
// REQUIRES: x86
// RUN: llvm-mc %s -o %t.o -filetype=obj -triple=x86_64-pc-linux
// RUN: llvm-mc %p/Inputs/copy-rel-pie.s -o %t2.o -filetype=obj -triple=x86_64-pc-linux
// RUN: ld.lld %t2.o -o %t2.so -shared
// RUN: ld.lld %t.o %t2.so -o %t -pie
// RUN: llvm-readobj -r %t | FileCheck %s
// CHECK: R_X86_64_COPY
// CHECK: R_X86_64_JUMP_SLOT
.rodata
.quad bar
.quad foo