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[PATCH 1/2] RISC-V: Print an error when unable to align a section


This used to just print "can't relax section: Success", which is a silly
error message.

bfd/ChangeLog

2017-09-06  Palmer Dabbelt  <palmer@dabbelt.com>

        * elfnn-riscv.c (_bfd_riscv_relax_align): Call bfd_set_error and
        print an error message when unable to relax a .align directive.
---
 bfd/elfnn-riscv.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/bfd/elfnn-riscv.c b/bfd/elfnn-riscv.c
index fdb151be827f..b4d7b9b00455 100644
--- a/bfd/elfnn-riscv.c
+++ b/bfd/elfnn-riscv.c
@@ -2986,7 +2986,7 @@ _bfd_riscv_relax_tls_le (bfd *abfd,
 
 static bfd_boolean
 _bfd_riscv_relax_align (bfd *abfd, asection *sec,
-			asection *sym_sec ATTRIBUTE_UNUSED,
+			asection *sym_sec,
 			struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
 			Elf_Internal_Rela *rel,
 			bfd_vma symval,
@@ -3008,7 +3008,14 @@ _bfd_riscv_relax_align (bfd *abfd, asection *sec,
 
   /* Make sure there are enough NOPs to actually achieve the alignment.  */
   if (rel->r_addend < nop_bytes)
-    return FALSE;
+    {
+      (*_bfd_error_handler)
+	(_("%B(%A+0x%lx): %d bytes required for alignment"
+	   "to %d-byte boundary, but only %d present"),
+	   abfd, sym_sec, rel->r_offset, nop_bytes, alignment, rel->r_addend);
+      bfd_set_error (bfd_error_bad_value);
+      return FALSE;
+    }
 
   /* Delete the reloc.  */
   rel->r_info = ELFNN_R_INFO (0, R_RISCV_NONE);
-- 
2.13.5


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