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| author | Max Filippov <jcmvbkbc@gmail.com> | 2016-11-18 11:39:47 -0800 |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gmail.com> | 2017-03-27 13:02:12 -0700 |
| commit | f74f865e5030057deb8a6a56af4a9e003d82cdcd (patch) | |
| tree | 08ff781da4df490835f53af4c23cabc80f4135ac | |
| parent | 0d0bf81a6729478563c3851ccfca435222ddfa25 (diff) | |
| download | gdb-f74f865e5030057deb8a6a56af4a9e003d82cdcd.zip gdb-f74f865e5030057deb8a6a56af4a9e003d82cdcd.tar.gz gdb-f74f865e5030057deb8a6a56af4a9e003d82cdcd.tar.bz2 | |
gdb: xtensa-linux: support THREADPTR register
Make THREADPTR user register accessible.
gdb/
2017-03-27 Max Filippov <jcmvbkbc@gmail.com>
* xtensa-linux-nat.c (fill_gregset): Call regcache_raw_collect
for THREADPTR register.
(supply_gregset_reg): Call regcache_raw_supply for THREADPTR
register.
* xtensa-tdep.c (XTENSA_DBREGN_UREG): New definition.
(xtensa_derive_tdep): Initialize tdep->threadptr_regnum.
* xtensa-tdep.h (gdbarch_tdep::threadptr_regnum): New field.
| -rw-r--r-- | gdb/ChangeLog | 10 | ||||
| -rw-r--r-- | gdb/xtensa-linux-nat.c | 8 | ||||
| -rw-r--r-- | gdb/xtensa-tdep.c | 4 | ||||
| -rw-r--r-- | gdb/xtensa-tdep.h | 1 |
4 files changed, 23 insertions, 0 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 2cebe10..25fde72 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,5 +1,15 @@ 2017-03-27 Max Filippov <jcmvbkbc@gmail.com> + * xtensa-linux-nat.c (fill_gregset): Call regcache_raw_collect + for THREADPTR register. + (supply_gregset_reg): Call regcache_raw_supply for THREADPTR + register. + * xtensa-tdep.c (XTENSA_DBREGN_UREG): New definition. + (xtensa_derive_tdep): Initialize tdep->threadptr_regnum. + * xtensa-tdep.h (gdbarch_tdep::threadptr_regnum): New field. + +2017-03-27 Max Filippov <jcmvbkbc@gmail.com> + * xtensa-tdep.c (xtensa_pseudo_register_read): Treat all registers above gdbarch_num_regs (gdbarch) as privileged in call0 ABI. diff --git a/gdb/xtensa-linux-nat.c b/gdb/xtensa-linux-nat.c index a4b001e..2781686 100644 --- a/gdb/xtensa-linux-nat.c +++ b/gdb/xtensa-linux-nat.c @@ -82,6 +82,10 @@ fill_gregset (const struct regcache *regcache, regcache_raw_collect (regcache, gdbarch_tdep (gdbarch)->sar_regnum, ®s->sar); + if (regnum == gdbarch_tdep (gdbarch)->threadptr_regnum || regnum == -1) + regcache_raw_collect (regcache, + gdbarch_tdep (gdbarch)->threadptr_regnum, + ®s->threadptr); if (regnum >=gdbarch_tdep (gdbarch)->ar_base && regnum < gdbarch_tdep (gdbarch)->ar_base + gdbarch_tdep (gdbarch)->num_aregs) @@ -148,6 +152,10 @@ supply_gregset_reg (struct regcache *regcache, regcache_raw_supply (regcache, gdbarch_tdep (gdbarch)->sar_regnum, ®s->sar); + if (regnum == gdbarch_tdep (gdbarch)->threadptr_regnum || regnum == -1) + regcache_raw_supply (regcache, + gdbarch_tdep (gdbarch)->threadptr_regnum, + ®s->threadptr); if (regnum >=gdbarch_tdep (gdbarch)->ar_base && regnum < gdbarch_tdep (gdbarch)->ar_base + gdbarch_tdep (gdbarch)->num_aregs) diff --git a/gdb/xtensa-tdep.c b/gdb/xtensa-tdep.c index 2338ac1..13f1514 100644 --- a/gdb/xtensa-tdep.c +++ b/gdb/xtensa-tdep.c @@ -3107,6 +3107,8 @@ xtensa_derive_tdep (struct gdbarch_tdep *tdep) /* Special registers 0..255 (core). */ #define XTENSA_DBREGN_SREG(n) (0x0200+(n)) +/* User registers 0..255. */ +#define XTENSA_DBREGN_UREG(n) (0x0300+(n)) for (rmap = tdep->regmap, n = 0; rmap->target_number != -1; n++, rmap++) { @@ -3138,6 +3140,8 @@ xtensa_derive_tdep (struct gdbarch_tdep *tdep) tdep->litbase_regnum = n; else if (rmap->target_number == XTENSA_DBREGN_SREG(230)) tdep->ps_regnum = n; + else if (rmap->target_number == XTENSA_DBREGN_UREG(231)) + tdep->threadptr_regnum = n; #if 0 else if (rmap->target_number == XTENSA_DBREGN_SREG(226)) tdep->interrupt_regnum = n; diff --git a/gdb/xtensa-tdep.h b/gdb/xtensa-tdep.h index 46aeecb..986aa68 100644 --- a/gdb/xtensa-tdep.h +++ b/gdb/xtensa-tdep.h @@ -204,6 +204,7 @@ struct gdbarch_tdep int lcount_regnum; int sar_regnum; /* Register number of SAR. */ int litbase_regnum; /* Register number of LITBASE. */ + int threadptr_regnum; /* Register number of THREADPTR. */ int interrupt_regnum; /* Register number for interrupt. */ int interrupt2_regnum; /* Register number for interrupt2. */ |