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x86: Add run-time tests for -mtls-dialect=gnu2 

* testsuite/config/default.exp (GNU2_CFLAGS): New.  Set
	to -mtls-dialect=gnu2 if target compiler supports it.
	* testsuite/ld-i386/tls.exp: Run -mtls-dialect=gnu2 tests.
	* testsuite/ld-x86-64/tls.exp: Likewise.
	* testsuite/ld-i386/tlsdesc1a.c: New file.
	* testsuite/ld-i386/tlsdesc1b.c: Likewise.
	* testsuite/ld-x86-64/tlsdesc1a.c: Likewise.
	* testsuite/ld-x86-64/tlsdesc1b.c: Likewise.
This commit is contained in:
H.J. Lu 2017-04-28 12:42:05 -07:00
parent d6f48aed23
commit 1670f9c154
8 changed files with 223 additions and 0 deletions
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11
ld/ChangeLog
View File

@ -1,3 +1,14 @@
2017-04-28 H.J. Lu <hongjiu.lu@intel.com>
* testsuite/config/default.exp (GNU2_CFLAGS): New. Set
to -mtls-dialect=gnu2 if target compiler supports it.
* testsuite/ld-i386/tls.exp: Run -mtls-dialect=gnu2 tests.
* testsuite/ld-x86-64/tls.exp: Likewise.
* testsuite/ld-i386/tlsdesc1a.c: New file.
* testsuite/ld-i386/tlsdesc1b.c: Likewise.
* testsuite/ld-x86-64/tlsdesc1a.c: Likewise.
* testsuite/ld-x86-64/tlsdesc1b.c: Likewise.
2017-04-28 H.J. Lu <hongjiu.lu@intel.com>
* testsuite/ld-elf/shared.exp: Add run-time tests for -z now.

37
ld/testsuite/config/default.exp
View File

@ -328,3 +328,40 @@ if { ![info exists NOPIE_CFLAGS] || ![info exists NOPIE_LDFLAGS] } then {
set NOPIE_LDFLAGS ""
}
}
# Set GNU2_CFLAGS to "-mtls-dialect=gnu2" if target compiler supports it.
if { ![info exists GNU2_CFLAGS] } then {
if { [which $CC] != 0 } {
# Check if gcc supports -mtls-dialect=gnu2
set flags ""
if [board_info [target_info name] exists cflags] {
append flags " [board_info [target_info name] cflags]"
}
if [board_info [target_info name] exists ldflags] {
append flags " [board_info [target_info name] ldflags]"
}
set basename "tmpdir/gnu2[pid]"
set src ${basename}.c
set output ${basename}.o
set f [open $src "w"]
puts $f "__thread int yyy = 100;"
close $f
if [is_remote host] {
set src [remote_download host $src]
}
set gnu2_available [run_host_cmd_yesno "$CC" "$flags -c -mtls-dialect=gnu2 $src -o $output"]
remote_file host delete $src
remote_file host delete $output
file delete $src
if { $gnu2_available == 1 } then {
set GNU2_CFLAGS "-mtls-dialect=gnu2"
} else {
set GNU2_CFLAGS ""
}
} else {
set GNU2_CFLAGS ""
}
}

58
ld/testsuite/ld-i386/tls.exp
View File

@ -176,3 +176,61 @@ run_ld_link_exec_tests [list \
"pass.out" \
] \
]
run_cc_link_tests [list \
[list \
"Build libtlsdesc1.so" \
"-shared" \
"-fPIC $GNU2_CFLAGS" \
{ tlsdesc1b.c } \
{} \
"libtlsdesc1.so" \
] \
[list \
"Build libtlsdesc1n.so" \
"-Wl,-z,now -shared" \
"-fPIC $GNU2_CFLAGS" \
{ tlsdesc1b.c } \
{} \
"libtlsdesc1n.so" \
] \
]
run_ld_link_exec_tests [list \
[list \
"Run tlsdesc1" \
"-Wl,--no-as-needed tmpdir/libtlsdesc1.so" \
"" \
{ tlsdesc1a.c } \
"tlsdesc1a" \
"pass.out" \
"$GNU2_CFLAGS" \
] \
[list \
"Run tlsdesc1 (-z now)" \
"-Wl,-z,now -Wl,--no-as-needed tmpdir/libtlsdesc1n.so" \
"" \
{ tlsdesc1a.c } \
"tlsdesc1b" \
"pass.out" \
"$GNU2_CFLAGS" \
] \
[list \
"Run tlsdesc1 with PIE" \
"-pie -Wl,--no-as-needed tmpdir/libtlsdesc1.so" \
"" \
{ tlsdesc1a.c } \
"tlsdesc1c" \
"pass.out" \
"-fPIE $GNU2_CFLAGS" \
] \
[list \
"Run tlsdesc1 with PIE (-z now)" \
"-pie -Wl,-z,now -Wl,--no-as-needed tmpdir/libtlsdesc1n.so" \
"" \
{ tlsdesc1a.c } \
"tlsdesc1d" \
"pass.out" \
"-fPIE $GNU2_CFLAGS" \
] \
]

19
ld/testsuite/ld-i386/tlsdesc1a.c Normal file
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@ -0,0 +1,19 @@
#include <stdlib.h>
#include <stdio.h>
extern int foo (void);
extern __thread int yyy;
__thread int zzz = 20;
int
main (void)
{
if (foo () != zzz)
abort ();
if (yyy != 100)
abort ();
printf ("PASS\n");
return 0;
}

8
ld/testsuite/ld-i386/tlsdesc1b.c Normal file
View File

@ -0,0 +1,8 @@
__thread int yyy = 100;
extern __thread int zzz;
int
foo (void)
{
return zzz;
}

63
ld/testsuite/ld-x86-64/tls.exp
View File

@ -176,3 +176,66 @@ run_ld_link_exec_tests [list \
"pass.out" \
] \
]
# -mtls-dialect=gnu2 isn't supported on x32.
if [istarget "x86_64-*-linux*-gnux32"] {
return
}
run_cc_link_tests [list \
[list \
"Build libtlsdesc1.so" \
"-shared" \
"-fPIC $GNU2_CFLAGS" \
{ tlsdesc1b.c } \
{} \
"libtlsdesc1.so" \
] \
[list \
"Build libtlsdesc1n.so" \
"-Wl,-z,now -shared" \
"-fPIC $GNU2_CFLAGS" \
{ tlsdesc1b.c } \
{} \
"libtlsdesc1n.so" \
] \
]
run_ld_link_exec_tests [list \
[list \
"Run tlsdesc1" \
"-Wl,--no-as-needed tmpdir/libtlsdesc1.so" \
"" \
{ tlsdesc1a.c } \
"tlsdesc1a" \
"pass.out" \
"$GNU2_CFLAGS" \
] \
[list \
"Run tlsdesc1 (-z now)" \
"-Wl,-z,now -Wl,--no-as-needed tmpdir/libtlsdesc1n.so" \
"" \
{ tlsdesc1a.c } \
"tlsdesc1b" \
"pass.out" \
"$GNU2_CFLAGS" \
] \
[list \
"Run tlsdesc1 with PIE" \
"-pie -Wl,--no-as-needed tmpdir/libtlsdesc1.so" \
"" \
{ tlsdesc1a.c } \
"tlsdesc1c" \
"pass.out" \
"-fPIE $GNU2_CFLAGS" \
] \
[list \
"Run tlsdesc1 with PIE (-z now)" \
"-pie -Wl,-z,now -Wl,--no-as-needed tmpdir/libtlsdesc1n.so" \
"" \
{ tlsdesc1a.c } \
"tlsdesc1d" \
"pass.out" \
"-fPIE $GNU2_CFLAGS" \
] \
]

19
ld/testsuite/ld-x86-64/tlsdesc1a.c Normal file
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@ -0,0 +1,19 @@
#include <stdlib.h>
#include <stdio.h>
extern int foo (void);
extern __thread int yyy;
__thread int zzz = 20;
int
main (void)
{
if (foo () != zzz)
abort ();
if (yyy != 100)
abort ();
printf ("PASS\n");
return 0;
}

8
ld/testsuite/ld-x86-64/tlsdesc1b.c Normal file
View File

@ -0,0 +1,8 @@
__thread int yyy = 100;
extern __thread int zzz;
int
foo (void)
{
return zzz;
}