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llvm-project/llvm/test/MC/ELF/uleb-ehtable.s

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[llvm-readobj] Change -long-option to --long-option in tests. NFC We use both -long-option and --long-option in tests. Switch to --long-option for consistency. In the "llvm-readelf" mode, -long-option is discouraged as it conflicts with grouped short options and it is not accepted by GNU readelf. While updating the tests, change llvm-readobj -s to llvm-readobj -S to reduce confusion ("s" is --section-headers in llvm-readobj but --symbols in llvm-readelf). llvm-svn: 359649
2019-05-01 13:27:20 +08:00
// RUN: llvm-mc -filetype=obj -triple i686-pc-linux-gnu %s -o - | llvm-readobj -S --sd | FileCheck %s -check-prefix=CHECK -check-prefix=ELF
// RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - | llvm-readobj -S --sd | FileCheck %s -check-prefix=CHECK -check-prefix=ELF
// RUN: llvm-mc -filetype=obj -triple i386-apple-darwin9 %s -o - | llvm-readobj -S --sd | FileCheck %s -check-prefix=CHECK -check-prefix=MACHO
// RUN: llvm-mc -filetype=obj -triple x86_64-apple-darwin9 %s -o - | llvm-readobj -S --sd | FileCheck %s -check-prefix=CHECK -check-prefix=MACHO
[MC] Fix assembler infinite loop on EH table using LEB padding. Fix the infinite loop reported in PR35809. It can occur with GCC-style EH table assembly, where the compiler relies on the assembler to calculate the offsets in the EH table. Also see https://sourceware.org/bugzilla/show_bug.cgi?id=4029 for the equivalent issue in the GNU assembler. Patch by Ryan Prichard! llvm-svn: 323934
2018-02-01 08:25:19 +08:00
// Test that we can assemble a GCC-like EH table that has 16381-16383 bytes of
// non-padding data between .ttbaseref and .ttbase. The assembler must insert
// extra padding either into the uleb128 or at the balign directive. See
// PR35809.
.data
.balign 4
foo:
.byte 0xff // LPStart omitted
.byte 0x1 // TType encoding (uleb128)
.uleb128 .ttbase-.ttbaseref
.ttbaseref:
.fill 128*128-1, 1, 0xcd // call site and actions tables
.balign 4
.ttbase:
.byte 1, 2, 3, 4
// ELF: Name: .data
// MACHO: Name: __data
// CHECK: SectionData (
// CHECK-NEXT: 0000: FF01FFFF 00CDCDCD CDCDCDCD CDCDCDCD
// CHECK: 4000: CDCDCDCD 01020304
// CHECK-NEXT: )