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| author | Jim Kingdon <jkingdon@engr.sgi.com> | 1994-02-28 06:06:05 +0000 |
|---|---|---|
| committer | Jim Kingdon <jkingdon@engr.sgi.com> | 1994-02-28 06:06:05 +0000 |
| commit | 4879254531c753527f4ae3bcf7e625fa71ca3902 (patch) | |
| tree | 36769293d673d3ce5fd18acbc4b568911d05cb61 /gdb/sparc-tdep.c | |
| parent | b30601cb28a62dee5579e2cffe2b2d02bd1e0a9d (diff) | |
| download | gdb-4879254531c753527f4ae3bcf7e625fa71ca3902.zip gdb-4879254531c753527f4ae3bcf7e625fa71ca3902.tar.gz gdb-4879254531c753527f4ae3bcf7e625fa71ca3902.tar.bz2 | |
* i387-tdep.c, i386-tdep.c i386v-nat.c, i386aix-nat.c,
i386m3-nat.c, config/m68k/tm-m68k.h, i960-tdep.c
config/i960/tm-i960.h, remote-nindy.c, config/m88k/tm-m88k.h,
m88k-tdep.c: Use floatformat.h instead of ieee-float.h.
* sparc-tdep.c: Remove now-obsolete ieee-float.h stuff
* findvar.c: Update comment regarding ieee-float.h.
Diffstat (limited to 'gdb/sparc-tdep.c')
| -rw-r--r-- | gdb/sparc-tdep.c | 35 |
1 files changed, 24 insertions, 11 deletions
diff --git a/gdb/sparc-tdep.c b/gdb/sparc-tdep.c index da7fd2c..7deca28 100644 --- a/gdb/sparc-tdep.c +++ b/gdb/sparc-tdep.c @@ -22,7 +22,7 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include "inferior.h" #include "obstack.h" #include "target.h" -#include "ieee-float.h" +#include "value.h" #include "symfile.h" /* for objfiles.h */ #include "objfiles.h" /* for find_pc_section */ @@ -164,6 +164,29 @@ sparc_frame_saved_pc (frame) char buf[MAX_REGISTER_RAW_SIZE]; CORE_ADDR addr; + if (frame->signal_handler_caller) + { + /* This is the signal trampoline frame. + Get the saved PC from the sigcontext structure. */ + +#ifndef SIGCONTEXT_PC_OFFSET +#define SIGCONTEXT_PC_OFFSET 12 +#endif + + CORE_ADDR sigcontext_addr; + char scbuf[TARGET_PTR_BIT / HOST_CHAR_BIT]; + + /* The sigcontext address is contained in register O2. */ + get_saved_register (buf, (int *)NULL, (CORE_ADDR *)NULL, + frame, O0_REGNUM + 2, (enum lval_type *)NULL); + sigcontext_addr = extract_address (buf, REGISTER_RAW_SIZE (O0_REGNUM)); + + /* Don't cause a memory_error when accessing sigcontext in case the + stack layout has changed or the stack is corrupt. */ + target_read_memory (sigcontext_addr + SIGCONTEXT_PC_OFFSET, + scbuf, sizeof (scbuf)); + return extract_address (scbuf, sizeof (scbuf)); + } addr = (frame->bottom + FRAME_SAVED_I0 + REGISTER_RAW_SIZE (I7_REGNUM) * (I7_REGNUM - I0_REGNUM)); read_memory (addr, buf, REGISTER_RAW_SIZE (I7_REGNUM)); @@ -568,16 +591,6 @@ sparc_pc_adjust(pc) else return pc+8; } - - -/* Structure of SPARC extended floating point numbers. - This information is not currently used by GDB, since no current SPARC - implementations support extended float. */ - -const struct ext_format ext_format_sparc = { -/* tot sbyte smask expbyte manbyte */ - 16, 0, 0x80, 0,1, 4,8, /* sparc */ -}; #ifdef USE_PROC_FS /* Target dependent support for /proc */ |