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| author | dfr <dfr@FreeBSD.org> | 1998-06-28 01:00:27 +0000 |
|---|---|---|
| committer | dfr <dfr@FreeBSD.org> | 1998-06-28 01:00:27 +0000 |
| commit | 40ca608c7a947e4c5eb6799a4054bb74e2311bb8 (patch) | |
| tree | 86d6b01a120793ebcf13173e88fb58149cf1bc4c | |
| parent | 54c71cf68a96f481226bbf1df5b4261073859a7d (diff) | |
| download | FreeBSD-src-40ca608c7a947e4c5eb6799a4054bb74e2311bb8.zip FreeBSD-src-40ca608c7a947e4c5eb6799a4054bb74e2311bb8.tar.gz | |
Make breakpoints and single-step work.
| -rw-r--r-- | sys/alpha/include/db_machdep.h | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/sys/alpha/include/db_machdep.h b/sys/alpha/include/db_machdep.h index 3aa84d3..a8c6b1f 100644 --- a/sys/alpha/include/db_machdep.h +++ b/sys/alpha/include/db_machdep.h @@ -34,10 +34,14 @@ * Machine-dependent defines for new kernel debugger. */ +#include "opt_simos.h" + #include <sys/param.h> #include <vm/vm.h> #include <machine/frame.h> +#define DB_NO_AOUT + typedef vm_offset_t db_addr_t; /* address - unsigned */ typedef long db_expr_t; /* expression - signed */ @@ -47,18 +51,25 @@ db_regs_t ddb_regs; /* register state */ #define PC_REGS(regs) ((db_addr_t)(regs)->tf_regs[FRAME_PC]) +#ifdef SIMOS +#define BKPT_INST 0x000000aa /* gentrap instruction */ +#else #define BKPT_INST 0x00000080 /* breakpoint instruction */ +#endif #define BKPT_SIZE (4) /* size of breakpoint inst */ #define BKPT_SET(inst) (BKPT_INST) -#if 0 #define FIXUP_PC_AFTER_BREAK \ - (ddb_regs.tf_regs[FRAME_PC] -= BKPT_SIZE) -#endif + (ddb_regs.tf_regs[FRAME_PC] -= BKPT_SIZE); #define SOFTWARE_SSTEP 1 /* no hardware support */ +#ifdef SIMOS +#define IS_BREAKPOINT_TRAP(type, code) ((type) == ALPHA_KENTRY_IF && \ + (code) == ALPHA_IF_CODE_GENTRAP) +#else #define IS_BREAKPOINT_TRAP(type, code) ((type) == ALPHA_KENTRY_IF && \ (code) == ALPHA_IF_CODE_BPT) +#endif #define IS_WATCHPOINT_TRAP(type, code) 0 /* @@ -106,7 +117,6 @@ int ddb_trap __P((unsigned long, unsigned long, unsigned long, /* * We use Elf64 symbols in DDB. */ -#define DB_ELF_SYMBOLS #define DB_ELFSIZE 64 #endif /* _ALPHA_DB_MACHDEP_H_ */ |
