espressif/binutils-gdb
1
0
Fork 0
mirror of https://github.com/espressif/binutils-gdb.git synced 2025-06-18 16:53:50 +08:00
Code Issues Packages Projects Releases Wiki Activity

[gdb] Improve printing of float formats

Browse Source 
Currently, on x86_64, a little endian target, I get:
...
$ gdb -q -batch -ex "maint print architecture" | grep " = floatformat"
gdbarch_dump: bfloat16_format = floatformat_bfloat16_big
gdbarch_dump: double_format = floatformat_ieee_double_big
gdbarch_dump: float_format = floatformat_ieee_single_big
gdbarch_dump: half_format = floatformat_ieee_half_big
gdbarch_dump: long_double_format = floatformat_i387_ext
...
which suggests big endian.

This is due to this bit of code in pformat:
...
    /* Just print out one of them - this is only for diagnostics.  */
    return format[0]->name;
...

Fix this by using gdbarch_byte_order to pick the appropriate index, such that
we have the more accurate:
...
gdbarch_dump: bfloat16_format = floatformat_bfloat16_little
gdbarch_dump: half_format = floatformat_ieee_half_little
gdbarch_dump: float_format = floatformat_ieee_single_little
gdbarch_dump: double_format = floatformat_ieee_double_little
gdbarch_dump: long_double_format = floatformat_i387_ext
...

Tested on x86_64-linux.
This commit is contained in:
Tom de Vries
2022-11-30 11:37:11 +01:00
parent 6bd454ca03
commit aaa79cd62b
3 changed files with 14 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
gdb/gdbarch-components.py
View File

@ -201,7 +201,7 @@ Value(
name="bfloat16_format",
postdefault="floatformats_bfloat16",
invalid=True,
printer="pformat (gdbarch->bfloat16_format)",
printer="pformat (gdbarch, gdbarch->bfloat16_format)",
)
Value(
@ -216,7 +216,7 @@ Value(
name="half_format",
postdefault="floatformats_ieee_half",
invalid=True,
printer="pformat (gdbarch->half_format)",
printer="pformat (gdbarch, gdbarch->half_format)",
)
Value(
@ -231,7 +231,7 @@ Value(
name="float_format",
postdefault="floatformats_ieee_single",
invalid=True,
printer="pformat (gdbarch->float_format)",
printer="pformat (gdbarch, gdbarch->float_format)",
)
Value(
@ -246,7 +246,7 @@ Value(
name="double_format",
postdefault="floatformats_ieee_double",
invalid=True,
printer="pformat (gdbarch->double_format)",
printer="pformat (gdbarch, gdbarch->double_format)",
)
Value(
@ -261,7 +261,7 @@ Value(
name="long_double_format",
postdefault="floatformats_ieee_double",
invalid=True,
printer="pformat (gdbarch->long_double_format)",
printer="pformat (gdbarch, gdbarch->long_double_format)",
)
Value(