mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-22 18:54:02 +01:00
c6b11bb4ce
Summary:
In the assembler or inline assembler,
attempting to use an invalid fixup type
gives a crash with a segmentation fault.
__attribute__((naked))
void foo(void) {
__asm__("mov r9, :lower16:bar(prel31)");
}
This should give a proper error message when building for ARM or Thumb.
This brings it in line with AARCH64.
This fixes all 8 instances of llvm_unreachable("Unsupported Modifier");
in ARM/MCTargetDesc/ARMELFObjectWriter.cpp.
A test is provided for each instance.
Reviewers: llvm-commits, MarkMurrayARM
Reviewed By: MarkMurrayARM
Subscribers: kristof.beyls, hiraditya, danielkiss
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D79782
Change-Id: I6971ba37f129cc453568fe71514ccb2ac9d16831
52 lines
1.5 KiB
ArmAsm
52 lines
1.5 KiB
ArmAsm
@ RUN: not llvm-mc -triple armv7a--none-eabi -filetype obj < %s -o /dev/null 2>&1 | FileCheck %s
|
|
@ RUN: not llvm-mc -triple thumbv7a--none-eabi -filetype obj < %s -o /dev/null 2>&1 | FileCheck %s
|
|
|
|
@ Note: These errors are not always emitted in the order in which the relevant
|
|
@ source appears, this file is carefully ordered so that that is the case.
|
|
|
|
.text
|
|
@ CHECK: :[[@LINE+1]]:{{[0-9]+}}: error: symbol 'undef' can not be undefined in a subtraction expression
|
|
.word (0-undef)
|
|
|
|
@ CHECK: :[[@LINE+1]]:{{[0-9]+}}: error: expected relocatable expression
|
|
.word -undef
|
|
|
|
@ CHECK: :[[@LINE+1]]:{{[0-9]+}}: error: symbol 'undef' can not be undefined in a subtraction expression
|
|
adr r0, #a-undef
|
|
|
|
@ CHECK: :[[@LINE+1]]:{{[0-9]+}}: error: Cannot represent a difference across sections
|
|
.word x_a - y_a
|
|
|
|
@ CHECK: :[[@LINE+1]]:{{[0-9]+}}: error: invalid fixup for {{ARM|Thumb}} MOVT instruction
|
|
movt r9, :upper16: bar(PREL31)
|
|
|
|
@ CHECK: :[[@LINE+1]]:{{[0-9]+}}: error: invalid fixup for {{ARM|Thumb}} MOVW instruction
|
|
movw r9, :lower16: bar(PREL31)
|
|
|
|
@ CHECK: :[[@LINE+1]]:{{[0-9]+}}: error: invalid fixup for 1-byte data relocation
|
|
.byte f30(PLT)
|
|
|
|
@ CHECK: :[[@LINE+1]]:{{[0-9]+}}: error: invalid fixup for 2-byte data relocation
|
|
.hword f30(PLT)
|
|
|
|
@ CHECK: :[[@LINE+1]]:{{[0-9]+}}: error: invalid fixup for 4-byte data relocation
|
|
.word f30(PLT)
|
|
|
|
@ CHECK: :[[@LINE+1]]:{{[0-9]+}}: error: invalid fixup for 4-byte pc-relative data relocation
|
|
.word x_a(PLT) - label1
|
|
label1:
|
|
|
|
w:
|
|
.word 0
|
|
.weak w
|
|
|
|
|
|
.section sec_x
|
|
x_a:
|
|
.word 0
|
|
|
|
|
|
.section sec_y
|
|
y_a:
|
|
.word 0
|