mirror of
https://github.com/llvm/llvm-project.git
synced 2025-04-25 01:06:05 +00:00
43b13341fb
Based on https://reviews.llvm.org/D45375 . Introduce a new InputFile kind `InternalKind`, use it for * `ctx.internalFile`: for linker-defined symbols and some synthesized `Undefined` * `createInternalFile`: for symbol assignments and --defsym I picked "internal" instead of "synthetic" to avoid confusion with SyntheticSection. Currently a symbol's file is one of: nullptr, ObjKind, SharedKind, BitcodeKind, BinaryKind. Now it's non-null (I plan to add an `assert(file)` to Symbol::Symbol and change `toString(const InputFile *)` separately). Debugging and error reporting gets improved. The immediate user-facing difference is more descriptive "File" column in the --cref output. This patch may unlock further simplification. Currently each symbol assignment gets its own `createInternalFile(cmd->location)`. Two symbol assignments in a linker script do not share the same file. Making the file the same would be nice, but would require non trivial code.
58 lines
2.4 KiB
ArmAsm
58 lines
2.4 KiB
ArmAsm
// REQUIRES: x86
|
|
|
|
// RUN: echo '.global foo; foo:' | llvm-mc -filetype=obj -triple=x86_64-pc-linux - -o %t1.o
|
|
// RUN: echo '.global foo, bar; bar:' | llvm-mc -filetype=obj -triple=x86_64-pc-linux - -o %t2.o
|
|
// RUN: echo '.global zed; zed:' | llvm-mc -filetype=obj -triple=x86_64-pc-linux - -o %ta.o
|
|
// RUN: echo 'abs1 = 42;' > %t.lds
|
|
// RUN: rm -f %t.a
|
|
// RUN: llvm-ar rcs %t.a %ta.o
|
|
// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t3.o
|
|
// RUN: ld.lld -shared -o %t1.so %t1.o
|
|
// RUN: ld.lld -o /dev/null %t1.so %t2.o %t3.o %t.a %t.a %t.lds --defsym abs2=43 --gc-sections --cref | FileCheck -strict-whitespace %s
|
|
|
|
/// If -Map is specified, print to the map file.
|
|
// RUN: ld.lld -o /dev/null %t1.so %t2.o %t3.o %t.a --gc-sections -Map=%t.map --cref
|
|
// RUN: FileCheck --input-file=%t.map %s --check-prefix=CHECK2
|
|
|
|
// CHECK: {{^$}}
|
|
// CHECK-NEXT: Cross Reference Table
|
|
// CHECK-EMPTY:
|
|
// CHECK-NEXT: Symbol File
|
|
// CHECK-NEXT: foo {{.*}}1.so
|
|
// CHECK-NEXT: {{.*}}2.o
|
|
// CHECK-NEXT: {{.*}}3.o
|
|
// CHECK-NEXT: bar {{.*}}2.o
|
|
// CHECK-NEXT: {{.*}}3.o
|
|
// CHECK-NEXT: _start {{.*}}3.o
|
|
// CHECK-NEXT: baz {{.*}}3.o
|
|
// CHECK-NEXT: zed {{.*}}.a({{.*}}a.o)
|
|
// CHECK-NEXT: {{.*}}3.o
|
|
// CHECK-NEXT: abs1 {{.*}}.lds:1
|
|
// CHECK-NEXT: {{.*}}3.o
|
|
// CHECK-NEXT: abs2 --defsym{{$}}
|
|
// CHECK-NEXT: {{.*}}3.o
|
|
// CHECK-NOT: discarded
|
|
|
|
// CHECK2: VMA LMA Size Align Out In Symbol
|
|
// CHECK2: .strtab
|
|
// CHECK2-NEXT: <internal>:(.strtab)
|
|
|
|
/// There is a blank line before the "Cross Reference Table" header.
|
|
// CHECK2-EMPTY:
|
|
// CHECK2-NEXT: Cross Reference Table
|
|
|
|
.global _start, foo, bar, baz, discarded
|
|
_start:
|
|
call foo
|
|
call bar
|
|
call zed
|
|
localsym:
|
|
baz:
|
|
|
|
.section .text.a,"ax",@progbits
|
|
discarded:
|
|
|
|
.data
|
|
.quad abs1
|
|
.quad abs2
|