Use RELA relocations properly for R_DATA_PTR on x86_64.

libtcc.c: Add greloca, a generalisation of greloc that takes an addend.
tcc.h: Add greloca and put_elf_reloca.
tccelf.c: Add put_elf_reloca, a generalisation of put_elf_reloc.
tccgen.c: On x86_64, use greloca instead of greloc in init_putv.

1 files changed, 8 insertions, 2 deletions

diff --git a/libtcc.c b/libtcc.c
index 711cdd2..01497b2 100644
--- a/libtcc.c
+++ b/libtcc.c
@@ -536,7 +536,8 @@ ST_FUNC void put_extern_sym(Sym *sym, Section *section,
 }
 
 /* add a new relocation entry to symbol 'sym' in section 's' */
-ST_FUNC void greloc(Section *s, Sym *sym, unsigned long offset, int type)
+ST_FUNC void greloca(Section *s, Sym *sym, unsigned long offset, int type,
+                     unsigned long addend)
 {
     int c = 0;
     if (sym) {
@@ -545,7 +546,12 @@ ST_FUNC void greloc(Section *s, Sym *sym, unsigned long offset, int type)
         c = sym->c;
     }
     /* now we can add ELF relocation info */
-    put_elf_reloc(symtab_section, s, offset, type, c);
+    put_elf_reloca(symtab_section, s, offset, type, c, addend);
+}
+
+ST_FUNC void greloc(Section *s, Sym *sym, unsigned long offset, int type)
+{
+    greloca(s, sym, offset, type, 0);
 }
 
 /********************************************************/