Various targets have / had overrides for .bss. Make sure that in such
cases
- .previous still works correctly (requiring such targets to invoke
obj_elf_section_change_hook() from their overriding handlers),
- sub-section specifiers are accepted as far as feasible (mandated by
the doc).
--- /dev/null
+#name: .bss / .previous interaction
+#as: --no-pad-sections
+#readelf: -S --wide
+
+There are [0-9]+ section headers, starting at offset 0x[0-9a-f]+:
+
+Section Headers:
+ +\[Nr\] Name +Type +Addr(ess|) +Off +Size .*
+#...
+ *\[ [1-9]\] *\.text +PROGBITS +0*0 +0[0-9a-f]* 0+ .*
+ *\[ [1-9]\] *\.data +PROGBITS +0*0 +0[0-9a-f]* 0*1 .*
+ *\[ [1-9]\] *\.bss +NOBITS +0*0 +0[0-9a-f]* 0*1 .*
+#pass
--- /dev/null
+ .text
+ .data
+ .bss
+ .byte 0
+ .previous
+ .byte 1
--- /dev/null
+#name: .bss <subsection>
+#as: --no-pad-sections
+#readelf: -S --wide
+
+There are [0-9]+ section headers, starting at offset 0x[0-9a-f]+:
+
+Section Headers:
+ +\[Nr\] Name +Type +Addr(ess|) +Off +Size .*
+#...
+ *\[ [1-9]\] *\.bss +NOBITS +0*0 +0[0-9a-f]* 0*a .*
+#pass
--- /dev/null
+ .bss
+ .byte 0
+
+ .bss 2
+ .balign 2
+ .skip 2
+
+ .bss 1
+ .balign 4
+ .skip 4
run_dump_test "pr25917"
run_dump_test "bss"
+ # Some targets treat .bss similar to .lcomm.
+ if { ![istarget "csky-*-*"]
+ && ![istarget "mcore-*-*"]
+ && ![istarget "spu-*-*"] } then {
+ run_dump_test "bss-prev" $dump_opts
+ run_dump_test "bss-subsect" $dump_opts
+ }
run_dump_test "bad-bss"
run_dump_test "bad-section-flag"
run_dump_test "bad-size"