+2020-06-19 Alan Modra <amodra@gmail.com>
+
+ * testsuite/config/default.exp (ld_elf_shared_opt): Don't set.
+ * testsuite/lib/binutils-common.exp (check_relro_support): New proc.
+ (run_dump_test): Use check_relro_support to decide whether to pass
+ extra ld option "-z norelro".
+
2020-06-11 Alan Modra <amodra@gmail.com>
* readelf.c (process_mips_specific): Don't alloc memory for
if ![info exists LDFLAGS] then {
set LDFLAGS ""
}
-set ld_elf_shared_opt "-z norelro"
-
if ![info exists NM] then {
set NM [findfile $base_dir/nm-new $base_dir/nm-new [transform nm]]
}
return $pie_available_saved
}
+proc check_relro_support { } {
+ global relro_available_saved
+ global ld
+
+ if {![info exists relro_available_saved]} {
+ remote_file host delete norelro
+ set ld_output [remote_exec host $ld "-z norelro"]
+ if { [string first "not supported" $ld_output] >= 0
+ || [string first "unrecognized option" $ld_output] >= 0
+ || [string first "-z norelro ignored" $ld_output] >= 0
+ || [string first "cannot find norelro" $ld_output] >= 0 } {
+ set relro_available_saved 0
+ } else {
+ set relro_available_saved 1
+ }
+ }
+ return $relro_available_saved
+}
+
# Compare two files line-by-line. FILE_1 is the actual output and FILE_2
# is the expected output. Ignore blank lines in either file.
#
global ADDR2LINE ADDR2LINEFLAGS AS ASFLAGS ELFEDIT ELFEDITFLAGS LD LDFLAGS
global NM NMFLAGS OBJCOPY OBJCOPYFLAGS OBJDUMP OBJDUMPFLAGS
global READELF READELFFLAGS STRIP STRIPFLAGS
- global copyfile env ld_elf_shared_opt runtests srcdir subdir verbose
+ global copyfile env runtests srcdir subdir verbose
if [string match "*/*" $name] {
set file $name
set ld_extra_opt ""
global ld
set ld "$LD"
- if { [is_elf_format] && [check_shared_lib_support] } {
- set ld_extra_opt "$ld_elf_shared_opt"
- }
+ if [check_relro_support] {
+ set ld_extra_opt "-z norelro"
+ }
# Add -L$srcdir/$subdir so that the linker command can use
# linker scripts in the source directory.
+2020-06-19 Alan Modra <amodra@gmail.com>
+
+ * emultempl/elf.em (gld${EMULATION_NAME}_handle_option): Omit
+ -z relro and -z norelro when target support for GNU_RELRO is lacking.
+ (gld${EMULATION_NAME}_before_parse): Ignore RELRO default too.
+ * emultempl/aarch64elf.em (gld${EMULATION_NAME}_before_parse): Ignore
+ RELRO default when target support for GNU_RELRO is lacking.
+ * emultempl/armelf.em (gld${EMULATION_NAME}_before_parse): Likewise.
+ * emultempl/linux.em (gld${EMULATION_NAME}_before_parse): Likewise.
+ * emultempl/scoreelf.em (gld${EMULATION_NAME}_before_parse): Likewise.
+ * testsuite/config/default.exp (ld_elf_shared_opt): Don't set.
+ * testsuite/ld-elf/pr16322.d: xfail when no relro support.
+ * testsuite/ld-elf/pr22393-1a.d: Likewise.
+ * testsuite/ld-elf/pr22393-1b.d: Likewise.
+ * testsuite/ld-elf/shared.exp (pr20995-2.so, pr20995-2): Likewise.
+ * testsuite/lib/ld-lib.exp (run_ld_link_tests): Use check_relro_support
+ to decide whether to pass extra ld option "-z norelro".
+
2020-06-17 H.J. Lu <hongjiu.lu@intel.com>
* testsuite/ld-elf/linux-x86.exp (check_pr25749a): Append "-w"
config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo TRUE ; else echo FALSE ; fi`;
config.separate_code = `if test "x${SEPARATE_CODE}" = xyes ; then echo TRUE ; else echo FALSE ; fi`;
link_info.check_relocs_after_open_input = TRUE;
+EOF
+if test -n "$COMMONPAGESIZE"; then
+fragment <<EOF
link_info.relro = DEFAULT_LD_Z_RELRO;
+EOF
+fi
+fragment <<EOF
}
static void
config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo TRUE ; else echo FALSE ; fi`;
config.separate_code = `if test "x${SEPARATE_CODE}" = xyes ; then echo TRUE ; else echo FALSE ; fi`;
link_info.check_relocs_after_open_input = TRUE;
+EOF
+if test -n "$COMMONPAGESIZE"; then
+fragment <<EOF
link_info.relro = DEFAULT_LD_Z_RELRO;
+EOF
+fi
+fragment <<EOF
}
static void
config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo TRUE ; else echo FALSE ; fi`;
config.separate_code = `if test "x${SEPARATE_CODE}" = xyes ; then echo TRUE ; else echo FALSE ; fi`;
link_info.check_relocs_after_open_input = TRUE;
+EOF
+if test -n "$COMMONPAGESIZE"; then
+fragment <<EOF
link_info.relro = DEFAULT_LD_Z_RELRO;
+EOF
+fi
+fragment <<EOF
link_info.separate_code = DEFAULT_LD_Z_SEPARATE_CODE;
}
link_info.combreloc = FALSE;
else if (strcmp (optarg, "nocopyreloc") == 0)
link_info.nocopyreloc = TRUE;
+EOF
+if test -n "$COMMONPAGESIZE"; then
+fragment <<EOF
else if (strcmp (optarg, "relro") == 0)
link_info.relro = TRUE;
else if (strcmp (optarg, "norelro") == 0)
link_info.relro = FALSE;
+EOF
+fi
+fragment <<EOF
else if (strcmp (optarg, "separate-code") == 0)
link_info.separate_code = TRUE;
else if (strcmp (optarg, "noseparate-code") == 0)
input_flags.dynamic = TRUE;
config.has_shared = TRUE;
link_info.check_relocs_after_open_input = TRUE;
+EOF
+if test -n "$COMMONPAGESIZE"; then
+fragment <<EOF
link_info.relro = DEFAULT_LD_Z_RELRO;
+EOF
+fi
+fragment <<EOF
}
/* Try to open a dynamic archive. This is where we know that Linux
config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo TRUE ; else echo FALSE ; fi`;
config.separate_code = `if test "x${SEPARATE_CODE}" = xyes ; then echo TRUE ; else echo FALSE ; fi`;
link_info.check_relocs_after_open_input = TRUE;
+EOF
+if test -n "$COMMONPAGESIZE"; then
+fragment <<EOF
link_info.relro = DEFAULT_LD_Z_RELRO;
+EOF
+fi
+fragment <<EOF
}
static void
}
}
-# Many ELF testcases expect that "-z relro" is off.
-set ld_elf_shared_opt "-z norelro"
-
# The "make check" target in the Makefile passes in
# "CC=$(CC_FOR_TARGET)". But, if the user invokes runtest directly
# (as when testing an installed linker), these flags may not be set.
#readelf: -l --wide
#target: *-*-linux-gnu *-*-gnu* *-*-nacl* arm*-*-uclinuxfdpiceabi
#xfail: ![check_shared_lib_support]
+#xfail: ![check_relro_support]
#...
GNU_RELRO .*
#readelf: -l --wide
#target: *-*-linux-gnu *-*-gnu* *-*-nacl* arm*-*-uclinuxfdpiceabi
#xfail: ![check_shared_lib_support]
+#xfail: ![check_relro_support]
#failif
#...
#readelf: -l --wide
#target: *-*-linux-gnu *-*-gnu* *-*-nacl* arm*-*-uclinuxfdpiceabi
#xfail: ![check_shared_lib_support]
+#xfail: ![check_relro_support]
#failif
#...
{pr20995b.s} {} "pr20995.so"] \
]
-# xfail on arm*-*-eabi*. The list can be enlarged to those targets that
-# don't support GNU_RELRO. For more details, please see discussions at:
-# https://sourceware.org/ml/binutils/2017-01/msg00441.html
-run_ld_link_tests [list \
- [list "Build pr20995-2.so" \
- "-shared -z relro" "" "$AFLAGS_PIC" \
- {pr20995c.s} {{readelf {-l --wide} pr20995-2so.r}} "pr20995-2.so"] \
-] "tic6x-*-*" "arm*-*-eabi*" "hppa*64*-*-hpux*" "aarch64*-*-elf*" \
- "*-*-lynxos*" "arm*-*-nto*" "i?86-*-nto*" "sh*-*-nto*"
-
# These targets don't copy dynamic variables into .bss.
setup_xfail "alpha-*-*" "bfin-*-*" "ia64-*-*" "xtensa-*-*"
# or don't have .data.rel.ro
"$LFLAGS" "tmpdir/pr20995.so" "$AFLAGS_NONPIC" \
{pr20995a.s} {{readelf {-S --wide} pr20995.r}} "pr20995"]]
-# xfail on arm*-*-eabi* is particularly because of no support of GNU_RELRO.
-# Please see the link above for details.
-setup_xfail "alpha-*-*" "bfin-*-*" "ia64-*-*" "xtensa-*-*" "arm*-*-eabi*"
-setup_xfail "hppa*64*-*-hpux*" "aarch64*-*-elf*" "tic6x-*-*"
+# xfail on targets that don't support GNU_RELRO.
+# For more details, please see discussions at:
+# https://sourceware.org/ml/binutils/2017-01/msg00441.html
+run_ld_link_tests [list \
+ [list "Build pr20995-2.so" \
+ "-shared -z relro" "" "$AFLAGS_PIC" \
+ {pr20995c.s} {{readelf {-l --wide} pr20995-2so.r}} "pr20995-2.so"] \
+] {![check_relro_support]}
+
+setup_xfail alpha-*-* xtensa-*-*
run_ld_link_tests [list \
[list \
"pr20995-2" \
"$LFLAGS" "tmpdir/pr20995-2.so" "$AFLAGS_NONPIC" \
{pr20995a.s} {{readelf {-S --wide} pr20995.r}} "pr20995-2"]
-] "*-*-lynxos*" "arm*-*-nto*" "i?86-*-nto*" "sh*-*-nto*"
+] {![check_relro_support]}
run_ld_link_tests [list \
[list "Build pr22374 shared library" \
global CFLAGS
global runtests
global exec_output
- global ld_elf_shared_opt
- if { [is_elf_format] && [check_shared_lib_support] } {
- set ld_extra_opt "$ld_elf_shared_opt"
- } else {
- set ld_extra_opt ""
+ set ld_extra_opt ""
+ if [check_relro_support] {
+ set ld_extra_opt "-z norelro"
}
foreach testitem $ldtests {
projects / thirdparty / binutils-gdb.git / commitdiff
