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authorNick Clifton <nickc@redhat.com>2007-11-20 15:08:25 +0000
committerNick Clifton <nickc@redhat.com>2007-11-20 15:08:25 +0000
commit430a16a51d442dd9c7f91631388815d54c70481f (patch)
tree55b2da5727325f2f8c2600aac85cd4d119e4db05 /ld
parent2207132da48e8347055233edd8cc6b8abffdd0a0 (diff)
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* elflink.c (elf_link_output_extsym): Weaken assertion: if --gc-section is set, there may be no TLS segment.
* lib/ld-lib.exp (check_gc_sections_available): New proc, based on the version in gcc/testsuite/lib/target-supports.exp. * ld-elf/eld.exp: Use check_gc_sections_available.
Diffstat (limited to 'ld')
-rw-r--r--ld/testsuite/ChangeLog11
-rw-r--r--ld/testsuite/ld-elf/elf.exp7
-rw-r--r--ld/testsuite/lib/ld-lib.exp42
3 files changed, 60 insertions, 0 deletions
diff --git a/ld/testsuite/ChangeLog b/ld/testsuite/ChangeLog
index 5d601f2..da6d9b0 100644
--- a/ld/testsuite/ChangeLog
+++ b/ld/testsuite/ChangeLog
@@ -1,3 +1,14 @@
+2007-11-20 Nick Clifton <nickc@redhat.com>
+
+ * lib/ld-lib.exp (check_gc_sections_available): New proc, based
+ on the version in gcc/testsuite/lib/target-supports.exp.
+ * ld-elf/elf.exp: Use check_gc_sections_available.
+
+2007-11-20 Tristan Gingold <gingold@adacore.com>
+
+ * ld-elf/tls_gc.s: New test.
+ * ld-elf/elf.exp: Add tls_gc test.
+
2007-11-17 Thiemo Seufer <ths@mips.com>
* ld-mips-elf/attr-gnu-4-14.d, ld-mips-elf/attr-gnu-4-41.d:
diff --git a/ld/testsuite/ld-elf/elf.exp b/ld/testsuite/ld-elf/elf.exp
index dc6a3a6..080d985 100644
--- a/ld/testsuite/ld-elf/elf.exp
+++ b/ld/testsuite/ld-elf/elf.exp
@@ -53,6 +53,13 @@ if { [istarget *-*-linux*] } {
}
}
+if { [check_gc_sections_available] } {
+ run_ld_link_tests {
+ {"--gc-sections on tls variable"
+ "--gc-section" "" {tls_gc.s} {} "tls_gc"}
+ }
+}
+
# The following tests require running the executable generated by ld.
if ![isnative] {
return
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
+}