}
}
-# Set PLT_CFLAGS to "-fplt" if target compiler supports it.
-
-if { ![info exists PLT_CFLAGS] } then {
+# Compiler tests
+proc compiler_supports { flag args } {
if { [check_compiler_available] } {
- # Check if gcc supports -fplt
+ global CC
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/plt[pid]"
- set src ${basename}.c
- set output ${basename}.o
- set f [open $src "w"]
- puts $f ""
- close $f
- if [is_remote host] {
- set src [remote_download host $src]
- }
- set plt_available [run_host_cmd_yesno "$CC" "$flags -c -fplt $src -o $output"]
- remote_file host delete $src
- remote_file host delete $output
- file delete $src
-
- if { $plt_available == 1 } then {
- set PLT_CFLAGS "-fplt"
+ set fn "cs[pid].c"
+ set f [open $fn "w"]
+ if { [llength $args] > 0 } {
+ puts $f [lindex $args 0]
} else {
- set PLT_CFLAGS ""
+ puts $f "int main (void) { return 0; }"
}
- } else {
- set PLT_CFLAGS ""
+ close $f
+ set rfn [remote_download host $fn]
+ set avail [run_host_cmd_yesno "$CC" "$flags $flag $rfn -o /dev/null"]
+ remote_file host delete $rfn
+ file delete $fn
+ return $avail
}
+ return 0
}
-# Set NOPIE_CFLAGS to "-fno-PIE" and NOPIE_LDFLAGS to "-no-pie" if
-# target compiler supports them.
+if { ![info exists PLT_CFLAGS] } then {
+ set PLT_CFLAGS ""
+ if [compiler_supports "-c -fplt"] {
+ set PLT_CFLAGS "-fplt"
+ }
+}
if { ![info exists NOPIE_CFLAGS] || ![info exists NOPIE_LDFLAGS] } then {
- if { [check_compiler_available] } {
- # Check if gcc supports -fno-PIE -no-pie.
- 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/nopie[pid]"
- set src ${basename}.c
- set output ${basename}
- set f [open $src "w"]
- puts $f "int main (void) { return 0; }"
- close $f
- if [is_remote host] {
- set src [remote_download host $src]
- }
- set nopie_available [run_host_cmd_yesno "$CC" "$flags -fno-PIE -no-pie $src -o $output"]
- remote_file host delete $src
- remote_file host delete $output
- file delete $src
-
- if { $nopie_available == 1 } then {
- set NOPIE_CFLAGS "-fno-PIE"
- set NOPIE_LDFLAGS "-no-pie"
- } else {
- set NOPIE_CFLAGS ""
- set NOPIE_LDFLAGS ""
- }
- } else {
- set NOPIE_CFLAGS ""
- set NOPIE_LDFLAGS ""
+ set NOPIE_CFLAGS ""
+ set NOPIE_LDFLAGS ""
+ if [compiler_supports "-fno-PIE -no-pie"] {
+ set NOPIE_CFLAGS "-fno-PIE"
+ set NOPIE_LDFLAGS "-no-pie"
}
}
-# Set NOCF_PROTECTION_CFLAGS to "-fcf-protection=none" if target compiler
-# supports it.
-
if { ![info exists NOCF_PROTECTION_CFLAGS] } then {
- if { [check_compiler_available] } {
- # Check if gcc supports -fcf-protection=none.
- 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/available[pid]"
- set src ${basename}.c
- set output ${basename}
- set f [open $src "w"]
- puts $f "int main (void) { return 0; }"
- close $f
- if [is_remote host] {
- set src [remote_download host $src]
- }
- set available [run_host_cmd_yesno "$CC" "$flags -fcf-protection=none $src -o $output"]
- remote_file host delete $src
- remote_file host delete $output
- file delete $src
-
- if { $available == 1 } then {
- set NOCF_PROTECTION_CFLAGS "-fcf-protection=none"
- } else {
- set NOCF_PROTECTION_CFLAGS ""
- }
- } else {
- set NOCF_PROTECTION_CFLAGS ""
+ set NOCF_PROTECTION_CFLAGS ""
+ if [compiler_supports "-fcf-protection=none"] {
+ set NOCF_PROTECTION_CFLAGS "-fcf-protection=none"
}
}
-# Set GNU2_CFLAGS to "-mtls-dialect=gnu2" if target compiler supports it.
-
if { ![info exists GNU2_CFLAGS] } then {
- if { [check_compiler_available] } {
- # 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 ""
+ set GNU2_CFLAGS ""
+ if [compiler_supports "-c -mtls-dialect=gnu2" "__thread int y = 1;"] {
+ set GNU2_CFLAGS "-mtls-dialect=gnu2"
}
}
-# Set INT128_CFLAGS to "-DHAS_INT128" if target compiler supports __int128.
-
if { ![info exists INT128_CFLAGS] } then {
- if { [check_compiler_available] } {
- # Check if gcc supports __int128.
- 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/int128[pid]"
- set src ${basename}.c
- set output ${basename}.o
- set f [open $src "w"]
- puts $f "__int128 a = 42;"
- close $f
- if [is_remote host] {
- set src [remote_download host $src]
- }
- set int128_available [run_host_cmd_yesno "$CC" "$flags -c $src -o $output"]
- remote_file host delete $src
- remote_file host delete $output
- file delete $src
-
- if { $int128_available == 1 } then {
- set INT128_CFLAGS "-DHAS_INT128"
- } else {
- set INT128_CFLAGS ""
- }
- } else {
- set INT128_CFLAGS ""
+ set INT128_CFLAGS ""
+ if [compiler_supports "-c" "__int128 a = 42;"] {
+ set INT128_CFLAGS "-DHAS_INT128"
}
}
-# Set STATIC_LDFLAGS to "-static" if target compiler supports it.
-
if { ![info exists STATIC_LDFLAGS] } then {
- if { [check_compiler_available] } {
- # Check if gcc supports -static.
- 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/static[pid]"
- set src ${basename}.c
- set output ${basename}
- set f [open $src "w"]
- puts $f "int main (void) { return 0; }"
- close $f
- if [is_remote host] {
- set src [remote_download host $src]
- }
- set static_available [run_host_cmd_yesno "$CC" "-static $flags $src -o $output"]
- remote_file host delete $src
- remote_file host delete $output
- file delete $src
-
- if { $static_available == 1 } then {
- set STATIC_LDFLAGS "-static"
- } else {
- set STATIC_LDFLAGS ""
- }
- } else {
- set STATIC_LDFLAGS ""
+ set STATIC_LDFLAGS ""
+ if [compiler_supports "-static"] {
+ set STATIC_LDFLAGS "-static"
}
}
-# Set STATIC_PIE_LDFLAGS to "-static-pie" if target compiler supports it.
-
if { ![info exists STATIC_PIE_LDFLAGS] } then {
- if { [check_compiler_available] } {
- # Check if gcc supports -static-pie.
- 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/static[pid]"
- set src ${basename}.c
- set output ${basename}
- set f [open $src "w"]
- puts $f "int main (void) { return 0; }"
- close $f
- if [is_remote host] {
- set src [remote_download host $src]
- }
- set static_available [run_host_cmd_yesno "$CC" "-static-pie $flags $src -o $output"]
- remote_file host delete $src
- remote_file host delete $output
- file delete $src
-
- if { $static_available == 1 } then {
- set STATIC_PIE_LDFLAGS "-static-pie"
- } else {
- set STATIC_PIE_LDFLAGS ""
- }
- } else {
- set STATIC_PIE_LDFLAGS ""
+ set STATIC_PIE_LDFLAGS ""
+ if [compiler_supports "-static-pie"] {
+ set STATIC_PIE_LDFLAGS "-static-pie"
}
}
-# Set NOSANITIZE_CFLAGS to "-fno-sanitize=all" if target compiler
-# supports it.
-
if { ![info exists NOSANITIZE_CFLAGS] } then {
- if { [check_compiler_available] } {
- # Check if gcc supports -fno-sanitize=all.
- 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/available[pid]"
- set src ${basename}.c
- set output ${basename}
- set f [open $src "w"]
- puts $f "int main (void) { return 0; }"
- close $f
- if [is_remote host] {
- set src [remote_download host $src]
- }
- set available [run_host_cmd_yesno "$CC" "$flags -fno-sanitize=all $src -o $output"]
- remote_file host delete $src
- remote_file host delete $output
- file delete $src
+ set NOSANITIZE_CFLAGS ""
+ if [compiler_supports "-fno-sanitize=all"] {
+ set NOSANITIZE_CFLAGS "-fno-sanitize=all"
+ }
+}
- if { $available == 1 } then {
- set NOSANITIZE_CFLAGS "-fno-sanitize=all"
- } else {
- set NOSANITIZE_CFLAGS ""
- }
- } else {
- set NOSANITIZE_CFLAGS ""
+# Provide dummy libraries that alpha-vms-ld always loads
+if { [istarget alpha*-*-*vms*] } {
+ set src tmpdir/empty.s
+ set f [open $src "w"]
+ close $f
+ if { [ld_assemble $as $src tmpdir/empty.o]
+ && ![ld_link $LD tmpdir/empty tmpdir/empty.o]
+ && [regsub -all {[^\n]*: cannot find -l([^\n]*)} $exec_output {tmpdir/lib\1.a } missing_libs] } {
+ regsub -all {\$} $missing_libs {\\\$} missing_libs
+ for { set i 0 } { $i < [llength $missing_libs] } { incr i } {
+ set f [lindex $missing_libs $i]
+ verbose -log "creating dummy $f"
+ ar_simple_create $ar {} $f tmpdir/empty.o
+ }
+ append LDFLAGS " -Ltmpdir"
+ unset i missing_libs
}
+ unset f src
}
projects / binutils-gdb.git / commitdiff