ad1f5457d2
Debug info sections need R_WASM_FUNCTION_OFFSET_I32 relocs (with FK_Data_4 fixup kinds) to refer to functions (instead of R_WASM_TABLE_INDEX as is used in data sections). Usually this is done in a convoluted way, with unnamed temp data symbols which target the start of the function, in which case WasmObjectWriter::recordRelocation converts it to use the section symbol instead. However in some cases the function can actually be undefined; in this case the dwarf generator uses the function symbol (a named undefined function symbol) instead. In that case the section-symbol transform doesn't work and we need to generate the correct reloc type a different way. In this change WebAssemblyWasmObjectWriter::getRelocType takes the fixup section type into account to choose the correct reloc type. Fixes PR50408 Differential Revision: https://reviews.llvm.org/D103557
75 lines
2.6 KiB
ArmAsm
75 lines
2.6 KiB
ArmAsm
# RUN: llvm-mc -filetype=obj -triple=wasm32-unknown-unknown %s -o %t1.o
|
|
# RUN: wasm-ld %t1.o -o %t -M | FileCheck --match-full-lines --strict-whitespace %s
|
|
# RUN: wasm-ld %t1.o -o %t -print-map | FileCheck --match-full-lines --strict-whitespace %s
|
|
# RUN: wasm-ld %t1.o -o %t -Map=%t.map
|
|
# RUN: FileCheck --match-full-lines --strict-whitespace %s < %t.map
|
|
|
|
.globaltype wasm_global, i32, immutable
|
|
wasm_global:
|
|
|
|
bar:
|
|
.functype bar () -> (i32)
|
|
i32.const somedata
|
|
i32.const somezeroes
|
|
drop
|
|
end_function
|
|
|
|
write_global:
|
|
.functype write_global (i32) -> ()
|
|
local.get 0
|
|
global.set wasm_global
|
|
end_function
|
|
|
|
.globl _start
|
|
_start:
|
|
.functype _start () -> ()
|
|
call bar
|
|
call write_global
|
|
end_function
|
|
|
|
.section .data.somedata,"",@
|
|
somedata:
|
|
.int32 123
|
|
.int32 bar
|
|
.size somedata, 8
|
|
|
|
.section .bss.somezeroes,"",@
|
|
somezeroes:
|
|
.int32 0
|
|
.size somezeroes, 4
|
|
|
|
.section .debug_info,"",@
|
|
.int32 bar
|
|
|
|
|
|
# CHECK: Addr Off Size Out In Symbol
|
|
# CHECK-NEXT: - 8 e TYPE
|
|
# CHECK-NEXT: - 16 6 FUNCTION
|
|
# CHECK-NEXT: - 1c 7 TABLE
|
|
# CHECK-NEXT: - 23 5 MEMORY
|
|
# CHECK-NEXT: - 28 f GLOBAL
|
|
# CHECK-NEXT: 0 0 0 __stack_pointer
|
|
# CHECK-NEXT: 1 0 0 wasm_global
|
|
# CHECK-NEXT: - 37 15 EXPORT
|
|
# CHECK-NEXT: - 4c 9 ELEM
|
|
# CHECK-NEXT: - 55 2d CODE
|
|
# CHECK-NEXT: - 56 10 {{.*}}{{/|\\}}map-file.s.tmp1.o:(bar)
|
|
# CHECK-NEXT: - 56 10 bar
|
|
# CHECK-NEXT: - 66 b {{.*}}{{/|\\}}map-file.s.tmp1.o:(write_global)
|
|
# CHECK-NEXT: - 66 b write_global
|
|
# CHECK-NEXT: - 71 f {{.*}}{{/|\\}}map-file.s.tmp1.o:(_start)
|
|
# CHECK-NEXT: - 71 f _start
|
|
# CHECK-NEXT: - 82 11 DATA
|
|
# CHECK-NEXT: 400 83 8 .data
|
|
# CHECK-NEXT: 400 89 8 {{.*}}{{/|\\}}map-file.s.tmp1.o:(.data.somedata)
|
|
# CHECK-NEXT: 400 89 8 somedata
|
|
# CHECK-NEXT: 408 82 4 .bss
|
|
# CHECK-NEXT: 408 0 4 {{.*}}{{/|\\}}map-file.s.tmp1.o:(.bss.somezeroes)
|
|
# CHECK-NEXT: 408 0 4 somezeroes
|
|
# CHECK-NEXT: - 93 12 CUSTOM(.debug_info)
|
|
# CHECK-NEXT: - a5 50 CUSTOM(name)
|
|
|
|
# RUN: not wasm-ld %t1.o -o /dev/null -Map=/ 2>&1 \
|
|
# RUN: | FileCheck -check-prefix=FAIL %s
|
|
# FAIL: wasm-ld: error: cannot open map file /
|