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| author | Jason Thorpe <thorpej@netbsd.org> | 2002-04-22 19:44:05 +0000 |
|---|---|---|
| committer | Jason Thorpe <thorpej@netbsd.org> | 2002-04-22 19:44:05 +0000 |
| commit | ab62c900e2060381046d1fe998b1516fc81c8072 (patch) | |
| tree | 9bb4dc8e0eab43b5bca77aaf8fcc23abd7780ea9 /gdb/vax-tdep.c | |
| parent | 7232b100b9274cbd08ce3fed4ef4ac093ec4b0cb (diff) | |
| download | gdb-ab62c900e2060381046d1fe998b1516fc81c8072.zip gdb-ab62c900e2060381046d1fe998b1516fc81c8072.tar.gz gdb-ab62c900e2060381046d1fe998b1516fc81c8072.tar.bz2 | |
* vax-tdep.c (vax_frame_init_saved_regs): New function.
* config/vax/tm-vax.h (FRAME_FIND_SAVED_REGS): Remove.
(FRAME_INIT_SAVED_REGS): New macro.
Diffstat (limited to 'gdb/vax-tdep.c')
| -rw-r--r-- | gdb/vax-tdep.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/gdb/vax-tdep.c b/gdb/vax-tdep.c index 053041e..15cff55 100644 --- a/gdb/vax-tdep.c +++ b/gdb/vax-tdep.c @@ -93,6 +93,40 @@ vax_register_virtual_type (int regno) return (builtin_type_int); } +void +vax_frame_init_saved_regs (struct frame_info *frame) +{ + int regnum, regmask; + CORE_ADDR next_addr; + + if (frame->saved_regs) + return; + + frame_saved_regs_zalloc (frame); + + regmask = read_memory_integer (frame->frame + 4, 4) >> 16; + + next_addr = frame->frame + 16; + + /* regmask's low bit is for register 0, which is the first one + what would be pushed. */ + for (regnum = 0; regnum < AP_REGNUM; regnum++) + { + if (regmask & (1 << regnum)) + frame->saved_regs[regnum] = next_addr += 4; + } + + frame->saved_regs[SP_REGNUM] = next_addr + 4; + if (regmask & (1 << FP_REGNUM)) + frame->saved_regs[SP_REGNUM] += + 4 + (4 * read_memory_integer (next_addr + 4, 4)); + + frame->saved_regs[PC_REGNUM] = frame->frame + 16; + frame->saved_regs[FP_REGNUM] = frame->frame + 12; + frame->saved_regs[AP_REGNUM] = frame->frame + 8; + frame->saved_regs[PS_REGNUM] = frame->frame + 4; +} + /* Advance PC across any function entry prologue instructions to reach some "real" code. */ |