forked from Imagelibrary/binutils-gdb
1d506c26d9
This commit is the result of the following actions:
- Running gdb/copyright.py to update all of the copyright headers to
include 2024,
- Manually updating a few files the copyright.py script told me to
update, these files had copyright headers embedded within the
file,
- Regenerating gdbsupport/Makefile.in to refresh it's copyright
date,
- Using grep to find other files that still mentioned 2023. If
these files were updated last year from 2022 to 2023 then I've
updated them this year to 2024.
I'm sure I've probably missed some dates. Feel free to fix them up as
you spot them.
102 lines
2.8 KiB
Plaintext
102 lines
2.8 KiB
Plaintext
# Copyright 2021-2024 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# This test checks if GDB can identify bfloat16 and IEEE half float types and
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# print them correctly.
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#
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load_lib dwarf.exp
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# This test can only be run on targets which support DWARF-2 and use gas.
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require dwarf2_support
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standard_testfile .c -dw.S
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# Make some DWARF for the test.
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# 0x4049 is the equivalent of 3.141 for bfloat16.
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# 0x4248 is the equivalent of 3.1406 for IEEE half float.
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set asm_file [standard_output_file $srcfile2]
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Dwarf::assemble $asm_file {
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global srcdir subdir srcfile
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cu {} {
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DW_TAG_compile_unit {
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{DW_AT_language @DW_LANG_C}
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{DW_AT_name $srcfile}
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{DW_AT_comp_dir /tmp}
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} {
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declare_labels bf16_type fp16_type \
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bf16_var fp16_var
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bf16_type: DW_TAG_base_type {
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{DW_AT_name __bf16}
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{encoding @DW_ATE_float}
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{DW_AT_byte_size 2 DW_FORM_sdata}
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}
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fp16_type: DW_TAG_base_type {
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{DW_AT_name __fp16}
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{encoding @DW_ATE_float}
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{DW_AT_byte_size 2 DW_FORM_sdata}
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}
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bf16_var: DW_TAG_variable {
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{DW_AT_name "bf16_1"}
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{DW_AT_type :${bf16_type}}
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{DW_AT_const_value 0x4049 DW_FORM_sdata}
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}
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fp16_var: DW_TAG_variable {
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{DW_AT_name "fp16_1"}
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{DW_AT_type :${fp16_type}}
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{DW_AT_const_value 0x4248 DW_FORM_sdata}
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}
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}
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}
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}
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if { [prepare_for_testing "failed to prepare" ${testfile} \
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[list $srcfile $asm_file] {nodebug}] } {
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return -1
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}
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if ![runto_main] {
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return -1
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}
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# Make sure we can print both types correctly.
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gdb_test "print bf16_1" " = 3.141"
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gdb_test "print fp16_1" " = 3.1406"
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#
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# Test that 'x/hf' correctly handles "half float".
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#
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set bytes {0x48 0x42}
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set endian [get_endianness]
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if {$endian == "big"} {
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set bytes [lreverse $bytes]
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}
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gdb_test_no_output "set var \$s = (unsigned char *) &storage" \
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"set convenience variable"
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gdb_test "print/x \$s\[0\] = [lindex $bytes 0]" \
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" = $hex" "set first element"
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gdb_test "print/x \$s\[1\] = [lindex $bytes 1]" \
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" = $hex" "set second element"
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gdb_test "print *(__fp16 *) \$s" " = 3\\.1406" \
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"print float16 value"
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gdb_test "x/hf \$s" "$hex <storage>:\[ \t\]*3\\.1406" \
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"examine float16 value"
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