diff options
Diffstat (limited to 'ld/testsuite/lib/ld-lib.exp')
| -rw-r--r-- | ld/testsuite/lib/ld-lib.exp | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/ld/testsuite/lib/ld-lib.exp b/ld/testsuite/lib/ld-lib.exp index 456e9fd..f326478 100644 --- a/ld/testsuite/lib/ld-lib.exp +++ b/ld/testsuite/lib/ld-lib.exp @@ -1535,3 +1535,45 @@ proc run_cc_link_tests { ldtests } { } } } + +# Returns true if --gc-sections is supported on the target. + +proc check_gc_sections_available { } { + global gc_sections_available_saved + global ld + + if {![info exists gc_sections_available_saved]} { + # Some targets don't support gc-sections despite whatever's + # advertised by ld's options. + if { [istarget alpha*-*-*] + || [istarget ia64-*-*] } { + set gc_sections_available_saved 0 + return 0 + } + + # elf2flt uses -q (--emit-relocs), which is incompatible with + # --gc-sections. + if { [board_info target exists ldflags] + && [regexp " -elf2flt\[ =\]" " [board_info target ldflags] "] } { + set gc_sections_available_saved 0 + return 0 + } + + # VxWorks kernel modules are relocatable objects linked with -r, + # while RTP executables are linked with -q (--emit-relocs). + # Both of these options are incompatible with --gc-sections. + if { [istarget *-*-vxworks*] } { + set gc_sections_available_saved 0 + return 0 + } + + # Check if the ld used by gcc supports --gc-sections. + set ld_output [remote_exec host $ld "--help"] + if { [ string first "--gc-sections" $ld_output ] >= 0 } { + set gc_sections_available_saved 1 + } else { + set gc_sections_available_saved 0 + } + } + return $gc_sections_available_saved +} |