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| author | Mike Frysinger <vapier@gentoo.org> | 2011-05-26 00:09:59 +0000 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2011-05-26 00:09:59 +0000 |
| commit | 3a49ea9faceb2a5c0d8d3afdee0a057c8ebe9501 (patch) | |
| tree | 2bb4cee29cc74384e4ec52406a5a892c4252f46a | |
| parent | 39f8b7c1fa376ee6d1ecb6ebee6b5fe506d269f4 (diff) | |
| download | gdb-3a49ea9faceb2a5c0d8d3afdee0a057c8ebe9501.zip gdb-3a49ea9faceb2a5c0d8d3afdee0a057c8ebe9501.tar.gz gdb-3a49ea9faceb2a5c0d8d3afdee0a057c8ebe9501.tar.bz2 | |
sim: add syscall tracing level
It's useful to be able to trace just the system calls the simulated
program is calling, so add a new --trace-syscall option for ports to
leverage if they choose.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| -rw-r--r-- | sim/common/ChangeLog | 11 | ||||
| -rw-r--r-- | sim/common/sim-trace.c | 14 | ||||
| -rw-r--r-- | sim/common/sim-trace.h | 6 |
3 files changed, 30 insertions, 1 deletions
diff --git a/sim/common/ChangeLog b/sim/common/ChangeLog index d37e912..5cb1359 100644 --- a/sim/common/ChangeLog +++ b/sim/common/ChangeLog @@ -1,3 +1,14 @@ +2011-05-25 Mike Frysinger <vapier@gentoo.org> + + * sim-trace.c (OPTION_TRACE_SYSCALL): New enum. + (trace_options): Handle "trace-syscall" with OPTION_TRACE_SYSCALL. + (trace_option_handler): Handle OPTION_TRACE_SYSCALL. + (trace_idx_to_str): Likewise. + * sim-trace.h (TRACE_SYSCALL_IDX): New enum. + (TRACE_syscall): Define. + (WITH_TRACE_SYSCALL_P): Likewise. + (TRACE_SYSCALL_P): Likewise. + 2011-05-23 Mike Frysinger <vapier@gentoo.org> * dv-glue.c (hw_glue_finish): Move "name" to function scope and diff --git a/sim/common/sim-trace.c b/sim/common/sim-trace.c index 0373532..da3e290 100644 --- a/sim/common/sim-trace.c +++ b/sim/common/sim-trace.c @@ -77,7 +77,8 @@ enum { OPTION_TRACE_FUNCTION, OPTION_TRACE_DEBUG, OPTION_TRACE_FILE, - OPTION_TRACE_VPU + OPTION_TRACE_VPU, + OPTION_TRACE_SYSCALL }; static const OPTION trace_options[] = @@ -125,6 +126,9 @@ static const OPTION trace_options[] = { {"trace-events", optional_argument, NULL, OPTION_TRACE_EVENTS}, '\0', "on|off", "Trace events", trace_option_handler, NULL }, + { {"trace-syscall", optional_argument, NULL, OPTION_TRACE_SYSCALL}, + '\0', "on|off", "Trace system calls", + trace_option_handler, NULL }, #ifdef SIM_HAVE_ADDR_RANGE { {"trace-range", required_argument, NULL, OPTION_TRACE_RANGE}, '\0', "START,END", "Specify range of addresses for instruction tracing", @@ -331,6 +335,13 @@ trace_option_handler (SIM_DESC sd, sim_cpu *cpu, int opt, sim_io_eprintf (sd, "Branch tracing not compiled in, `--trace-branch' ignored\n"); break; + case OPTION_TRACE_SYSCALL : + if (WITH_TRACE_SYSCALL_P) + return set_trace_option (sd, "-syscall", TRACE_SYSCALL_IDX, arg); + else + sim_io_eprintf (sd, "System call tracing not compiled in, `--trace-syscall' ignored\n"); + break; + case OPTION_TRACE_SEMANTICS : if (WITH_TRACE_ALU_P && WITH_TRACE_FPU_P @@ -621,6 +632,7 @@ trace_idx_to_str (int trace_idx) case TRACE_EVENTS_IDX: return "events: "; case TRACE_FPU_IDX: return "fpu: "; case TRACE_BRANCH_IDX: return "branch: "; + case TRACE_SYSCALL_IDX: return "syscall: "; case TRACE_VPU_IDX: return "vpu: "; default: sprintf (num, "?%d?", trace_idx); diff --git a/sim/common/sim-trace.h b/sim/common/sim-trace.h index 0f616bf..c429b25 100644 --- a/sim/common/sim-trace.h +++ b/sim/common/sim-trace.h @@ -69,6 +69,9 @@ enum { /* Trace branching. */ TRACE_BRANCH_IDX, + /* Trace syscalls. */ + TRACE_SYSCALL_IDX, + /* Add information useful for debugging the simulator to trace output. */ TRACE_DEBUG_IDX, @@ -105,6 +108,7 @@ enum { #define TRACE_fpu (1 << TRACE_FPU_IDX) #define TRACE_vpu (1 << TRACE_VPU_IDX) #define TRACE_branch (1 << TRACE_BRANCH_IDX) +#define TRACE_syscall (1 << TRACE_SYSCALL_IDX) #define TRACE_debug (1 << TRACE_DEBUG_IDX) /* Preprocessor macros to simplify tests of WITH_TRACE. */ @@ -120,6 +124,7 @@ enum { #define WITH_TRACE_FPU_P (WITH_TRACE & TRACE_fpu) #define WITH_TRACE_VPU_P (WITH_TRACE & TRACE_vpu) #define WITH_TRACE_BRANCH_P (WITH_TRACE & TRACE_branch) +#define WITH_TRACE_SYSCALL_P (WITH_TRACE & TRACE_syscall) #define WITH_TRACE_DEBUG_P (WITH_TRACE & TRACE_debug) /* Tracing install handler. */ @@ -217,6 +222,7 @@ typedef struct _trace_data { #define TRACE_FPU_P(cpu) TRACE_P (cpu, TRACE_FPU_IDX) #define TRACE_VPU_P(cpu) TRACE_P (cpu, TRACE_VPU_IDX) #define TRACE_BRANCH_P(cpu) TRACE_P (cpu, TRACE_BRANCH_IDX) +#define TRACE_SYSCALL_P(cpu) TRACE_P (cpu, TRACE_SYSCALL_IDX) #define TRACE_DEBUG_P(cpu) TRACE_P (cpu, TRACE_DEBUG_IDX) /* Tracing functions. */ |