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| author | Andrew Burgess <andrew.burgess@embecosm.com> | 2019-11-04 23:03:10 +0000 |
|---|---|---|
| committer | Andrew Burgess <andrew.burgess@embecosm.com> | 2019-11-28 00:03:05 +0000 |
| commit | 0ac2b354ee006d94d6fc46bea08f39f99b18f869 (patch) | |
| tree | e835558df4225cb8542515eb3ab5a65eaeef924b /gas/ChangeLog | |
| parent | 22eb4a06176dfef554008a62844e0ce30df2260f (diff) | |
| download | fsf-binutils-gdb-0ac2b354ee006d94d6fc46bea08f39f99b18f869.zip fsf-binutils-gdb-0ac2b354ee006d94d6fc46bea08f39f99b18f869.tar.gz fsf-binutils-gdb-0ac2b354ee006d94d6fc46bea08f39f99b18f869.tar.bz2 | |
gas/riscv: Produce version 3 DWARF CIE by default
The flag controlling the default DWARF CIE version to produce now
starts with the value -1. This can be modified with the command line
flag as before, but after command line flag processing, in
md_after_parse_args targets can, if the global still has the value -1,
override this value. This gives a target specific default.
If a CIE version is not select either by command line flag, or a
target specific default, then some new code in dwarf2_init now select
a global default. This remains as version 1 to match previous
behaviour.
This RISC-V has a target specific default of version provided, this
make the return column uleb128, which means we can use all DWARF
registers include CSRs.
I chose to switch to version 3 rather than version 4 as this is most
similar to the global default (version 1). Switching to version 4
adds additional columns to the CIE header.
gas/ChangeLog:
* as.c (flag_dwarf_cie_version): Change initial value to -1, and
update comment.
* config/tc-riscv.c (riscv_after_parse_args): Set
flag_dwarf_cie_version if it has not already been set.
* dwarf2dbg.c (dwarf2_init): Initialise flag_dwarf_cie_version if
needed.
* testsuite/gas/riscv/default-cie-version.d: New file.
* testsuite/gas/riscv/default-cie-version.s: New file.
ld/ChangeLog:
* testsuite/ld-elf/eh5.d: Accept version 3 DWARF CIE.
Change-Id: Ibbfe8f0979fba480bf0a359978b09d2b3055555e
Diffstat (limited to 'gas/ChangeLog')
| -rw-r--r-- | gas/ChangeLog | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index c7dfd5e..45e8b8a 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,5 +1,16 @@ 2019-11-22 Andrew Burgess <andrew.burgess@embecosm.com> + * as.c (flag_dwarf_cie_version): Change initial value to -1, and + update comment. + * config/tc-riscv.c (riscv_after_parse_args): Set + flag_dwarf_cie_version if it has not already been set. + * dwarf2dbg.c (dwarf2_init): Initialise flag_dwarf_cie_version if + needed. + * testsuite/gas/riscv/default-cie-version.d: New file. + * testsuite/gas/riscv/default-cie-version.s: New file. + +2019-11-22 Andrew Burgess <andrew.burgess@embecosm.com> + * dw2gencfi.c (output_cie): Error on return column overflow. * testsuite/gas/riscv/cie-rtn-col-1.d: New file. * testsuite/gas/riscv/cie-rtn-col-3.d: New file. |