From 5dcbac57c52179c1084c3a1bcae19283b6abcdf2 Mon Sep 17 00:00:00 2001 From: Daniel Sanders Date: Thu, 4 Aug 2016 15:36:03 +0000 Subject: [PATCH] [mips] Set Personality and LSDA encoding for FreeBSD Reviewers: seanbruno, sdardis Subscribers: tberghammer, danalbert, srhines, dsanders, sdardis, llvm-commits, seanbruno Differential Revision: https://reviews.llvm.org/D23113 llvm-svn: 277732 --- llvm/lib/MC/MCObjectFileInfo.cpp | 8 ++++++ llvm/test/CodeGen/Mips/ehframe-indirect.ll | 33 +++++++++++++++++----- 2 files changed, 34 insertions(+), 7 deletions(-) diff --git a/llvm/lib/MC/MCObjectFileInfo.cpp b/llvm/lib/MC/MCObjectFileInfo.cpp index d05bcea14c98..bbf6123e3914 100644 --- a/llvm/lib/MC/MCObjectFileInfo.cpp +++ b/llvm/lib/MC/MCObjectFileInfo.cpp @@ -395,6 +395,14 @@ void MCObjectFileInfo::initELFMCObjectFileInfo(const Triple &T) { dwarf::DW_EH_PE_sdata4; // We don't support PC-relative LSDA references in GAS so we use the default // DW_EH_PE_absptr for those. + + // FreeBSD must be explicit about the data size and using pcrel since it's + // assembler/linker won't do the automatic conversion that the Linux tools + // do. + if (T.isOSFreeBSD()) { + PersonalityEncoding |= dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4; + LSDAEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4; + } break; case Triple::ppc64: case Triple::ppc64le: diff --git a/llvm/test/CodeGen/Mips/ehframe-indirect.ll b/llvm/test/CodeGen/Mips/ehframe-indirect.ll index 9352294991aa..79bd7f245a11 100644 --- a/llvm/test/CodeGen/Mips/ehframe-indirect.ll +++ b/llvm/test/CodeGen/Mips/ehframe-indirect.ll @@ -1,15 +1,34 @@ -; RUN: llc -mtriple=mipsel-linux-gnu < %s -asm-verbose -relocation-model=pic | FileCheck -check-prefixes=ALL,O32 %s -; RUN: llc -mtriple=mipsel-linux-android < %s -asm-verbose -relocation-model=pic | FileCheck -check-prefixes=ALL,O32 %s -; RUN: llc -mtriple=mips64el-linux-gnu -target-abi=n32 < %s -asm-verbose -relocation-model=pic | FileCheck -check-prefixes=ALL,N32 %s -; RUN: llc -mtriple=mips64el-linux-android -target-abi=n32 < %s -asm-verbose -relocation-model=pic | FileCheck -check-prefixes=ALL,N32 %s -; RUN: llc -mtriple=mips64el-linux-gnu < %s -asm-verbose -relocation-model=pic | FileCheck -check-prefixes=ALL,N64 %s -; RUN: llc -mtriple=mips64el-linux-android < %s -asm-verbose -relocation-model=pic | FileCheck -check-prefixes=ALL,N64 %s +; RUN: llc -mtriple=mipsel-linux-gnu < %s -asm-verbose -relocation-model=pic | \ +; RUN: FileCheck -check-prefixes=ALL,LINUX,LINUX-O32,O32 %s +; RUN: llc -mtriple=mipsel-linux-android < %s -asm-verbose -relocation-model=pic | \ +; RUN: FileCheck -check-prefixes=ALL,LINUX,LINUX-O32,O32 %s +; RUN: llc -mtriple=mips64el-linux-gnu -target-abi=n32 < %s -asm-verbose -relocation-model=pic | \ +; RUN: FileCheck -check-prefixes=ALL,LINUX,LINUX-N32,N32 %s +; RUN: llc -mtriple=mips64el-linux-android -target-abi=n32 < %s -asm-verbose -relocation-model=pic | \ +; RUN: FileCheck -check-prefixes=ALL,LINUX,LINUX-N32,N32 %s +; RUN: llc -mtriple=mips64el-linux-gnu < %s -asm-verbose -relocation-model=pic | \ +; RUN: FileCheck -check-prefixes=ALL,LINUX,LINUX-N64,N64 %s +; RUN: llc -mtriple=mips64el-linux-android < %s -asm-verbose -relocation-model=pic | \ +; RUN: FileCheck -check-prefixes=ALL,LINUX,LINUX-N64,N64 %s +; RUN: llc -mtriple=mips64el-linux-gnu < %s -asm-verbose -relocation-model=pic | \ +; RUN: FileCheck -check-prefixes=ALL,LINUX,LINUX-N64,N64 %s +; RUN: llc -mtriple=mips64-unknown-freebsd11.0 < %s -asm-verbose -relocation-model=pic | \ +; RUN: FileCheck -check-prefixes=ALL,FREEBSD,FREEBSD-N64,N64 %s @_ZTISt9exception = external constant i8* define i32 @main() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { ; ALL: .cfi_startproc -; ALL: .cfi_personality 128, DW.ref.__gxx_personality_v0 + +; Linux must rely on the assembler/linker converting the encodings. +; LINUX: .cfi_personality 128, DW.ref.__gxx_personality_v0 +; LINUX-O32: .cfi_lsda 0, $exception0 +; LINUX-NEW: .cfi_lsda 0, .Lexception0 + +; FreeBSD can (and must) be more direct about the encodings it wants. +; FREEBSD: .cfi_personality 155, DW.ref.__gxx_personality_v0 +; FREEBSD-O32: .cfi_lsda 27, $exception0 +; FREEBSD-NEW: .cfi_lsda 27, .Lexception0 entry: invoke void @foo() to label %cont unwind label %lpad