c4fc26b4c0
After D69985, symbols for "-init" and "-fini" were unconditionally marked as used even if they were just lazy symbols seen when scanning archives. That resulted in exposing them in the symbol table of an output file, as Undefined, which added unwanted dependencies. The patch fixes the issue by checking the kind of the symbols before the marking. Differential Revision: https://reviews.llvm.org/D83549
63 lines
2.2 KiB
ArmAsm
63 lines
2.2 KiB
ArmAsm
// REQUIRES: x86
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// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
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// Should use "_init" and "_fini" by default when fills dynamic table
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// RUN: ld.lld -shared %t -o %t2
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// RUN: llvm-readobj --dynamic-table %t2 | FileCheck --check-prefix=BYDEF %s
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// BYDEF: INIT 0x11010
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// BYDEF: FINI 0x11020
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// -init and -fini override symbols to use
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// RUN: ld.lld -shared %t -o %t2 -init _foo -fini _bar
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// RUN: llvm-readobj --dynamic-table %t2 | FileCheck --check-prefix=OVR %s
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// OVR: INIT 0x11030
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// OVR: FINI 0x11040
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// Check aliases as well
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// RUN: ld.lld -shared %t -o %t2 -init=_foo -fini=_bar
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// RUN: llvm-readobj --dynamic-table %t2 | FileCheck --check-prefix=OVR %s
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// Don't add an entry for undef. The freebsd dynamic linker doesn't
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// check if the value is null. If it is, it will just call the
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// load address.
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// RUN: ld.lld -shared %t -o %t2 -init=_undef -fini=_undef
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// RUN: llvm-readobj --dynamic-table %t2 | FileCheck --check-prefix=UNDEF %s
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// UNDEF-NOT: INIT
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// UNDEF-NOT: FINI
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// Don't add an entry for shared. For the same reason as undef.
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// RUN: ld.lld -shared %t -o %t.so
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// RUN: echo > %t.s
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// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %t.s -o %t2.o
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// RUN: ld.lld -shared %t2.o %t.so -o %t2
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// RUN: llvm-readobj --dynamic-table %t2 | FileCheck --check-prefix=SHARED %s
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// SHARED-NOT: INIT
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// SHARED-NOT: FINI
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// Should not add new entries to the symbol table
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// and should not require given symbols to be resolved
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// RUN: ld.lld -shared %t -o %t2 -init=_unknown -fini=_unknown
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// RUN: llvm-readobj --symbols --dynamic-table %t2 | FileCheck --check-prefix=NOENTRY %s
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// NOENTRY: DynamicSection [
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// NOENTRY-NOT: INIT
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// NOENTRY-NOT: FINI
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// NOENTRY: ]
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// NOENTRY: Symbols [
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// NOENTRY-NOT: Name: _unknown
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// NOENTRY: ]
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// Should not add entries for "_init" and "_fini" to the symbol table
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// if the symbols are defined in non-fetched achive members.
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// RUN: rm -f %t.a
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// RUN: llvm-ar rcs %t.a %t
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// RUN: ld.lld -shared -m elf_x86_64 -e _unknown %t.a -o %t.so
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// RUN: llvm-nm %t.so | \
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// RUN: FileCheck %s --implicit-check-not=_init --implicit-check-not=_fini
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.global _start,_init,_fini,_foo,_bar,_undef
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_start:
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_init = 0x11010
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_fini = 0x11020
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_foo = 0x11030
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_bar = 0x11040
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