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Differential D3819 Diff 9200 head/usr.bin/truss/syscalls.c

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head/usr.bin/truss/syscalls.c

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#include <time.h> #include <time.h>
#include <unistd.h> #include <unistd.h>
#include <vis.h> #include <vis.h>
#include "truss.h" #include "truss.h"
#include "extern.h" #include "extern.h"
#include "syscall.h" #include "syscall.h"
/* usr.bin/kdump/utrace.c */
int kdump_print_utrace(FILE *, void *, size_t, int);
/* 64-bit alignment on 32-bit platforms. */ /* 64-bit alignment on 32-bit platforms. */
#if !defined(__LP64__) && defined(__powerpc__) #if !defined(__LP64__) && defined(__powerpc__)
#define QUAD_ALIGN 1 #define QUAD_ALIGN 1
#else #else
#define QUAD_ALIGN 0 #define QUAD_ALIGN 0
#endif #endif
/* Number of slots needed for a 64-bit argument. */ /* Number of slots needed for a 64-bit argument. */
▲ Show 20 Lines • Show All 254 Lines • ▼ Show 20 Lines#endif
.args = { { Atfd, 0 }, { Name, 1 }, { Atflags, 2 } } }, .args = { { Atfd, 0 }, { Name, 1 }, { Atflags, 2 } } },
{ .name = "unmount", .ret_type = 1, .nargs = 2, { .name = "unmount", .ret_type = 1, .nargs = 2,
.args = { { Name, 0 }, { Int, 1 } } }, .args = { { Name, 0 }, { Int, 1 } } },
{ .name = "utimensat", .ret_type = 1, .nargs = 4, { .name = "utimensat", .ret_type = 1, .nargs = 4,
.args = { { Atfd, 0 }, { Name | IN, 1 }, { Timespec2 | IN, 2 }, .args = { { Atfd, 0 }, { Name | IN, 1 }, { Timespec2 | IN, 2 },
{ Atflags, 3 } } }, { Atflags, 3 } } },
{ .name = "utimes", .ret_type = 1, .nargs = 2, { .name = "utimes", .ret_type = 1, .nargs = 2,
.args = { { Name | IN, 0 }, { Timeval2 | IN, 1 } } }, .args = { { Name | IN, 0 }, { Timeval2 | IN, 1 } } },
{ .name = "utrace", .ret_type = 1, .nargs = 1,
.args = { { Utrace, 0 } } },
{ .name = "wait4", .ret_type = 1, .nargs = 4, { .name = "wait4", .ret_type = 1, .nargs = 4,
.args = { { Int, 0 }, { ExitStatus | OUT, 1 }, { Waitoptions, 2 }, .args = { { Int, 0 }, { ExitStatus | OUT, 1 }, { Waitoptions, 2 },
{ Rusage | OUT, 3 } } }, { Rusage | OUT, 3 } } },
{ .name = "wait6", .ret_type = 1, .nargs = 6, { .name = "wait6", .ret_type = 1, .nargs = 6,
.args = { { Idtype, 0 }, { Quad, 1 + QUAD_ALIGN }, .args = { { Idtype, 0 }, { Quad, 1 + QUAD_ALIGN },
{ ExitStatus | OUT, 1 + QUAD_ALIGN + QUAD_SLOTS }, { ExitStatus | OUT, 1 + QUAD_ALIGN + QUAD_SLOTS },
{ Waitoptions, 2 + QUAD_ALIGN + QUAD_SLOTS }, { Waitoptions, 2 + QUAD_ALIGN + QUAD_SLOTS },
{ Rusage | OUT, 3 + QUAD_ALIGN + QUAD_SLOTS }, { Rusage | OUT, 3 + QUAD_ALIGN + QUAD_SLOTS },
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break; break;
} }
default: default:
fprintf(fp, "%#x", ke->fflags); fprintf(fp, "%#x", ke->fflags);
} }
fprintf(fp, ",%p,%p", (void *)ke->data, (void *)ke->udata); fprintf(fp, ",%p,%p", (void *)ke->data, (void *)ke->udata);
} }
static void
print_utrace(FILE *fp, void *utrace_addr, size_t len)
{
unsigned char *utrace_buffer;
fprintf(fp, "{ ");
if (kdump_print_utrace(fp, utrace_addr, len, 0)) {
fprintf(fp, " }");
return;
}
utrace_buffer = utrace_addr;
fprintf(fp, "%zu:", len);
while (len--)
fprintf(fp, " %02x", *utrace_buffer++);
fprintf(fp, " }");
}
/* /*
* Converts a syscall argument into a string. Said string is * Converts a syscall argument into a string. Said string is
* allocated via malloc(), so needs to be free()'d. sc is * allocated via malloc(), so needs to be free()'d. sc is
* a pointer to the syscall description (see above); args is * a pointer to the syscall description (see above); args is
* an array of all of the system call arguments. * an array of all of the system call arguments.
*/ */
char * char *
print_arg(struct syscall_args *sc, unsigned long *args, long *retval, print_arg(struct syscall_args *sc, unsigned long *args, long *retval,
▲ Show 20 Lines • Show All 725 Lines • ▼ Show 20 Lines case PipeFds:
* the returned file descriptors as a fake argument. * the returned file descriptors as a fake argument.
* *
* Overwrite the first retval to signal a successful * Overwrite the first retval to signal a successful
* return as well. * return as well.
*/ */
fprintf(fp, "{ %ld, %ld }", retval[0], retval[1]); fprintf(fp, "{ %ld, %ld }", retval[0], retval[1]);
retval[0] = 0; retval[0] = 0;
break; break;
case Utrace: {
size_t len;
void *utrace_addr;
len = args[sc->offset + 1];
utrace_addr = calloc(1, len);
if (get_struct(pid, (void *)args[sc->offset],
(void *)utrace_addr, len) != -1)
print_utrace(fp, utrace_addr, len);
else
fprintf(fp, "0x%lx", args[sc->offset]);
free(utrace_addr);
break;
}
default: default:
errx(1, "Invalid argument type %d\n", sc->type & ARG_MASK); errx(1, "Invalid argument type %d\n", sc->type & ARG_MASK);
} }
fclose(fp); fclose(fp);
return (tmp); return (tmp);
} }
/* /*
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