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| author | Andrew Burgess <andrew.burgess@embecosm.com> | 2018-07-17 15:22:39 +0100 |
|---|---|---|
| committer | Andrew Burgess <andrew.burgess@embecosm.com> | 2018-09-03 15:48:41 +0100 |
| commit | 78a3b0fab8200fdca2b1b934645c29e7bd502d36 (patch) | |
| tree | 0f57ab94388e5de1d76e4ccd56045f3b40fa49fd /gdb/ChangeLog | |
| parent | 23e60e7a4ea772eabb6ae4788913e228763755cf (diff) | |
| download | gdb-78a3b0fab8200fdca2b1b934645c29e7bd502d36.zip gdb-78a3b0fab8200fdca2b1b934645c29e7bd502d36.tar.gz gdb-78a3b0fab8200fdca2b1b934645c29e7bd502d36.tar.bz2 | |
gdb/riscv: Provide non-DWARF stack unwinder
Collects information during the prologue scan and uses this to unwind
registers when no DWARF information is available.
This patch has been tested by disabling the DWARF stack unwinders, and
running the complete GDB testsuite against a range of RISC-V targets.
The results are comparable to running with the DWARF unwinders in
place.
gdb/ChangeLog:
* riscv-tdep.c: Add 'prologue-value.h' include.
(struct riscv_unwind_cache): New struct.
(riscv_debug_unwinder): New global.
(riscv_scan_prologue): Update arguments, capture register details
from prologue scan.
(riscv_skip_prologue): Reformat arguments line, move end of
prologue calculation into riscv_scan_prologue.
(riscv_frame_cache): Update return type, create
riscv_unwind_cache, scan the prologue, and fill in remaining cache
details.
(riscv_frame_this_id): Use frame id computed in riscv_frame_cache.
(riscv_frame_prev_register): Use the trad_frame within the
riscv_unwind_cache.
(_initialize_riscv_tdep): Add 'set/show debug riscv unwinder'
flag.
Diffstat (limited to 'gdb/ChangeLog')
| -rw-r--r-- | gdb/ChangeLog | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 446fa22..7a809d5 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,5 +1,23 @@ 2018-09-03 Andrew Burgess <andrew.burgess@embecosm.com> + * riscv-tdep.c: Add 'prologue-value.h' include. + (struct riscv_unwind_cache): New struct. + (riscv_debug_unwinder): New global. + (riscv_scan_prologue): Update arguments, capture register details + from prologue scan. + (riscv_skip_prologue): Reformat arguments line, move end of + prologue calculation into riscv_scan_prologue. + (riscv_frame_cache): Update return type, create + riscv_unwind_cache, scan the prologue, and fill in remaining cache + details. + (riscv_frame_this_id): Use frame id computed in riscv_frame_cache. + (riscv_frame_prev_register): Use the trad_frame within the + riscv_unwind_cache. + (_initialize_riscv_tdep): Add 'set/show debug riscv unwinder' + flag. + +2018-09-03 Andrew Burgess <andrew.burgess@embecosm.com> + * trad-frame.h (trad_frame_set_realreg): Declare. (trad_frame_set_addr): Declare. * trad-frame.c (trad_frame_set_realreg): Define new function. |