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| author | Alan Modra <amodra@gmail.com> | 2022-05-20 14:59:05 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2022-05-20 16:11:25 +0930 |
| commit | bd7d326debef642c0a98f859807d794d8d68afc7 (patch) | |
| tree | e590bc7d3c850d6742191d435ada233a4631e50c /ld/configure.ac | |
| parent | ef5d515048ba13a06815c8fccc420e6e8098da03 (diff) | |
| download | gdb-bd7d326debef642c0a98f859807d794d8d68afc7.zip gdb-bd7d326debef642c0a98f859807d794d8d68afc7.tar.gz gdb-bd7d326debef642c0a98f859807d794d8d68afc7.tar.bz2 | |
Tidy warn-execstack handling
Make ld and bfd values consistent by swapping values 0 and 2 in
link_info.warn_execstack. This has the benefit of making the value an
"extended" boolean, with 0 meaning no warning, 1 meaning warn, other
values a conditional warning.
Yes, this patch introduces fails on arm/aarch64. Not a problem with
this patch but an arm/aarch64 before_parse problem.
bfd/
* elflink.c (bfd_elf_size_dynamic_sections): Adjust
warn_execstack test.
include/
* bfdlink.h (warn_execstack): Swap 0 and 2 meaning.
ld/
* configure.ac (DEFAULT_LD_WARN_EXECSTACK): Use values of 0,
1, 2 consistent with link_info.warn_execstack.
* ld.texi: Typo fixes.
* lexsup.c (parse_args): Adjust setting of link_info.warn_execstack.
(elf_static_list_options): Adjust help message conditions.
* configure: Regenerate.
Diffstat (limited to 'ld/configure.ac')
| -rw-r--r-- | ld/configure.ac | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/ld/configure.ac b/ld/configure.ac index 0b29e81..0112148 100644 --- a/ld/configure.ac +++ b/ld/configure.ac @@ -204,13 +204,15 @@ AC_ARG_ENABLE(separate-code, esac]) -ac_default_ld_warn_execstack=unset +# By default warn when an executable stack is created due to object files +# requesting such, not when the user specifies -z execstack. +ac_default_ld_warn_execstack=2 AC_ARG_ENABLE(warn-execstack, AS_HELP_STRING([--enable-warn-execstack], [enable warnings when creating an executable stack]), [case "${enableval}" in yes) ac_default_ld_warn_execstack=1 ;; - no) ac_default_ld_warn_execstack=-1 ;; + no) ac_default_ld_warn_execstack=0 ;; esac]) ac_default_ld_warn_rwx_segments=unset @@ -531,9 +533,6 @@ AC_DEFINE_UNQUOTED(DEFAULT_LD_Z_SEPARATE_CODE, [Define to 1 if you want to enable -z separate-code in ELF linker by default.]) -if test "${ac_default_ld_warn_execstack}" = unset; then - ac_default_ld_warn_execstack=0 -fi AC_DEFINE_UNQUOTED(DEFAULT_LD_WARN_EXECSTACK, $ac_default_ld_warn_execstack, [Define to 1 if you want to enable --warn-execstack in ELF linker by default.]) |