[Patch 2/7] BaseTools GenFw: Support CLANG8ELF with conversion ELF to PE/COFF image

["Liming Gao" <liming.gao@intel.com>]

CLANG8ELF tool chain generated ELF image with the different attributes
in section. Update GenFw to handle them.
1. .text section with writable attribute (support)
2. .reloc section has the symbol for *ABS* (skip)

Signed-off-by: Liming Gao <liming.gao@intel.com>
---
 BaseTools/Source/C/GenFw/Elf32Convert.c | 12 +++---------
 BaseTools/Source/C/GenFw/Elf64Convert.c | 11 +++--------
 2 files changed, 6 insertions(+), 17 deletions(-)

diff --git a/BaseTools/Source/C/GenFw/Elf32Convert.c b/BaseTools/Source/C/GenFw/Elf32Convert.c
index 46089ff370..fd13278e3d 100644
--- a/BaseTools/Source/C/GenFw/Elf32Convert.c
+++ b/BaseTools/Source/C/GenFw/Elf32Convert.c
@@ -238,7 +238,7 @@ IsTextShdr (
   Elf_Shdr *Shdr
   )
 {
-  return (BOOLEAN) ((Shdr->sh_flags & (SHF_WRITE | SHF_ALLOC)) == SHF_ALLOC);
+  return (BOOLEAN) ((Shdr->sh_flags & (SHF_EXECINSTR | SHF_ALLOC)) == (SHF_EXECINSTR | SHF_ALLOC));
 }
 
 STATIC
@@ -261,7 +261,7 @@ IsDataShdr (
   if (IsHiiRsrcShdr(Shdr)) {
     return FALSE;
   }
-  return (BOOLEAN) (Shdr->sh_flags & (SHF_WRITE | SHF_ALLOC)) == (SHF_ALLOC | SHF_WRITE);
+  return (BOOLEAN) (Shdr->sh_flags & (SHF_EXECINSTR | SHF_WRITE | SHF_ALLOC)) == (SHF_ALLOC | SHF_WRITE);
 }
 
 STATIC
@@ -749,13 +749,7 @@ WriteSections32 (
           if (SymName == NULL) {
             SymName = (const UINT8 *)"<unknown>";
           }
-
-          Error (NULL, 0, 3000, "Invalid",
-                 "%s: Bad definition for symbol '%s'@%#x or unsupported symbol type.  "
-                 "For example, absolute and undefined symbols are not supported.",
-                 mInImageName, SymName, Sym->st_value);
-
-          exit(EXIT_FAILURE);
+          continue;
         }
         SymShdr = GetShdrByIndex(Sym->st_shndx);
 
diff --git a/BaseTools/Source/C/GenFw/Elf64Convert.c b/BaseTools/Source/C/GenFw/Elf64Convert.c
index 3d6319c821..35cebad27d 100644
--- a/BaseTools/Source/C/GenFw/Elf64Convert.c
+++ b/BaseTools/Source/C/GenFw/Elf64Convert.c
@@ -239,7 +239,7 @@ IsTextShdr (
   Elf_Shdr *Shdr
   )
 {
-  return (BOOLEAN) ((Shdr->sh_flags & (SHF_WRITE | SHF_ALLOC)) == SHF_ALLOC);
+  return (BOOLEAN) ((Shdr->sh_flags & (SHF_EXECINSTR | SHF_ALLOC)) == (SHF_EXECINSTR | SHF_ALLOC));
 }
 
 STATIC
@@ -262,7 +262,7 @@ IsDataShdr (
   if (IsHiiRsrcShdr(Shdr)) {
     return FALSE;
   }
-  return (BOOLEAN) (Shdr->sh_flags & (SHF_WRITE | SHF_ALLOC)) == (SHF_ALLOC | SHF_WRITE);
+  return (BOOLEAN) (Shdr->sh_flags & (SHF_EXECINSTR | SHF_WRITE | SHF_ALLOC)) == (SHF_ALLOC | SHF_WRITE);
 }
 
 STATIC
@@ -894,12 +894,7 @@ WriteSections64 (
             SymName = (const UINT8 *)"<unknown>";
           }
 
-          Error (NULL, 0, 3000, "Invalid",
-                 "%s: Bad definition for symbol '%s'@%#llx or unsupported symbol type.  "
-                 "For example, absolute and undefined symbols are not supported.",
-                 mInImageName, SymName, Sym->st_value);
-
-          exit(EXIT_FAILURE);
+          continue;
         }
         SymShdr = GetShdrByIndex(Sym->st_shndx);
 
-- 
2.13.0.windows.1