[lld] r323172 - Use 4 as the alignment of .eh_frame_hdr.

[Rafael Espindola via llvm-commits]

Author: rafael
Date: Mon Jan 22 21:23:23 2018
New Revision: 323172

URL: http://llvm.org/viewvc/llvm-project?rev=323172&view=rev
Log:
Use 4 as the alignment of .eh_frame_hdr.

It includes 32 bit values and this matches both gold and bfd.

Modified:
    lld/trunk/ELF/SyntheticSections.cpp
    lld/trunk/test/ELF/eh-frame-hdr.s

Modified: lld/trunk/ELF/SyntheticSections.cpp
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/ELF/SyntheticSections.cpp?rev=323172&r1=323171&r2=323172&view=diff
==============================================================================
--- lld/trunk/ELF/SyntheticSections.cpp (original)
+++ lld/trunk/ELF/SyntheticSections.cpp Mon Jan 22 21:23:23 2018
@@ -2173,7 +2173,7 @@ void GdbIndexSection::writeTo(uint8_t *B
 bool GdbIndexSection::empty() const { return !Out::DebugInfo; }
 
 EhFrameHeader::EhFrameHeader()
-    : SyntheticSection(SHF_ALLOC, SHT_PROGBITS, 1, ".eh_frame_hdr") {}
+    : SyntheticSection(SHF_ALLOC, SHT_PROGBITS, 4, ".eh_frame_hdr") {}
 
 // .eh_frame_hdr contains a binary search table of pointers to FDEs.
 // Each entry of the search table consists of two values,

Modified: lld/trunk/test/ELF/eh-frame-hdr.s
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/test/ELF/eh-frame-hdr.s?rev=323172&r1=323171&r2=323172&view=diff
==============================================================================
--- lld/trunk/test/ELF/eh-frame-hdr.s (original)
+++ lld/trunk/test/ELF/eh-frame-hdr.s Mon Jan 22 21:23:23 2018
@@ -60,7 +60,7 @@ _start:
 // HDR-NEXT:    Size: 36
 // HDR-NEXT:    Link: 0
 // HDR-NEXT:    Info: 0
-// HDR-NEXT:    AddressAlignment: 1
+// HDR-NEXT:    AddressAlignment: 4
 // HDR-NEXT:    EntrySize: 0
 // HDR-NEXT:    SectionData (
 // HDR-NEXT:      0000: 011B033B 24000000 03000000 A80E0000
@@ -130,5 +130,5 @@ _start:
 // HDR-NEXT:   Flags [
 // HDR-NEXT:     PF_R
 // HDR-NEXT:   ]
-// HDR-NEXT:   Alignment: 1
+// HDR-NEXT:   Alignment: 4
 // HDR-NEXT: }