[gcc(refs/users/giulianob/heads/pfe_backport)] Backport targhooks.c (default_print_patchable_function_entry): Emit __patchable_function_entries sec

[Giuliano Belinassi <giulianob@gcc.gnu.org>]

https://gcc.gnu.org/g:2d35914acc611b8780c52c2e6df78d56da37a61d

commit 2d35914acc611b8780c52c2e6df78d56da37a61d
Author: Joao Moreira <jmoreira@suse.de>
Date:   Wed Apr 17 18:24:23 2019 +0000

    Backport targhooks.c (default_print_patchable_function_entry): Emit __patchable_function_entries section with writable flags to allow...
    
    gcc/ChangeLog
    2021-10-07  Giuliano Belinassi  <gbelinassi@suse.de>
    
            Backport from mainline
            2019-04-10  Joao Moreira  <jmoreira@suse.de>
    
            * targhooks.c (default_print_patchable_function_entry): Emit
            __patchable_function_entries section with writable flags to allow
            relocation resolution.

Diff:
---
 gcc/targhooks.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/targhooks.c b/gcc/targhooks.c
index c57967966c5..be0c557f1a2 100644
--- a/gcc/targhooks.c
+++ b/gcc/targhooks.c
@@ -1643,7 +1643,7 @@ default_print_patchable_function_entry (FILE *file,
       ASM_GENERATE_INTERNAL_LABEL (buf, "LPFE", patch_area_number);
 
       switch_to_section (get_section ("__patchable_function_entries",
-				      0, NULL));
+				      SECTION_WRITE | SECTION_RELRO, NULL));
       fputs (asm_op, file);
       assemble_name_raw (file, buf);
       fputc ('\n', file);