gdb.trace: Fix unavailable-dwarf-piece.exp on big endian targets
The test constructs fake DWARF info for a C structure involving bitfields. DWARF bitfields are always counted from LSB, while the order in which bitfields are allocated in a C struct depends on the target endianness - thus the generated DWARF marks different bitfields as unavailable when target is big endian. Accordingly, we need different expected outputs. Tested on s390 and s390x, no regression on x86_64. gdb/testsuite/ChangeLog: * gdb.trace/unavailable-dwarf-piece.exp: Fix bitfield handling on big endian targets.
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2 changed files with 22 additions and 3 deletions
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2016-01-23 Marcin Kościelnicki <koriakin@0x04.net>
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* gdb.trace/unavailable-dwarf-piece.exp: Fix bitfield handling on big
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endian targets.
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2016-01-22 Jan Kratochvil <jan.kratochvil@redhat.com>
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2016-01-22 Jan Kratochvil <jan.kratochvil@redhat.com>
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Pedro Alves <palves@redhat.com>
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Pedro Alves <palves@redhat.com>
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@ -325,10 +325,24 @@ with_test_prefix "tracing bar" {
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gdb_test "continue" "Continuing\\.\[ \r\n\]+Breakpoint.*"
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gdb_test "continue" "Continuing\\.\[ \r\n\]+Breakpoint.*"
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gdb_test_no_output "tstop"
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gdb_test_no_output "tstop"
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set endian ""
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gdb_test_multiple "show endian" "show endian" {
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-re ".* (big|little) endian.*$gdb_prompt $" {
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set endian $expect_out(1,string)
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pass "endianness: $endian"
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}
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}
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gdb_test "tfind 0" "Found trace frame 0, tracepoint .*"
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gdb_test "tfind 0" "Found trace frame 0, tracepoint .*"
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gdb_test "p/d x" "\\\$${decimal} = {a = 0, b = <unavailable>, c = 0, d = 0, e = 0, f = 0, g = 0, h = 0, i = 0, j = 0}"
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if { $endian == "little" } {
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gdb_test "p/d y" "\\\$${decimal} = {a = 0, b = 0, c = 0, d = 0, e = <unavailable>, f = 0, g = 0, h = 0, i = 0, j = 0}"
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gdb_test "p/d x" "\\\$${decimal} = {a = 0, b = <unavailable>, c = 0, d = 0, e = 0, f = 0, g = 0, h = 0, i = 0, j = 0}"
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gdb_test "p/d z" "\\\$${decimal} = {a = 0, b = 0, c = 0, d = 0, e = 0, f = 0, g = 0, h = 0, i = <unavailable>, j = 0}"
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gdb_test "p/d y" "\\\$${decimal} = {a = 0, b = 0, c = 0, d = 0, e = <unavailable>, f = 0, g = 0, h = 0, i = 0, j = 0}"
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gdb_test "p/d z" "\\\$${decimal} = {a = 0, b = 0, c = 0, d = 0, e = 0, f = 0, g = 0, h = 0, i = <unavailable>, j = 0}"
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} else {
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gdb_test "p/d x" "\\\$${decimal} = {a = 0, b = 0, c = 0, d = 0, e = 0, f = 0, g = 0, h = 0, i = <unavailable>, j = 0}"
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gdb_test "p/d y" "\\\$${decimal} = {a = 0, b = 0, c = 0, d = 0, e = 0, f = <unavailable>, g = 0, h = 0, i = 0, j = 0}"
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gdb_test "p/d z" "\\\$${decimal} = {a = 0, b = <unavailable>, c = 0, d = 0, e = 0, f = 0, g = 0, h = 0, i = 0, j = 0}"
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}
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gdb_test "tfind none" "No longer looking at any trace frame.*"
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gdb_test "tfind none" "No longer looking at any trace frame.*"
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}
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}
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