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Actually save and pass in argument information

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9564 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-10-28 22:45:25 +00:00
parent c0204e0b73
commit d09bef4d46
1 changed files with 21 additions and 16 deletions
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37
runtime/libprofile/CommonProfiling.c
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@ -19,26 +19,33 @@
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
static int SavedArgc = 0;
static const char **SavedArgv = 0;
static char *SavedArgs = 0;
static unsigned SavedArgsLength = 0;
/* save_arguments - Save argc and argv as passed into the program for the file
* we output.
*/
void save_arguments(int argc, const char **argv) {
if (SavedArgv) return; /* This can be called multiple times */
unsigned Length, i;
if (SavedArgs || !argv) return; /* This can be called multiple times */
/* FIXME: this should copy the arguments out of argv into a string of our own,
* because the program might modify the arguments!
*/
SavedArgc = argc;
SavedArgv = argv;
for (Length = 0, i = 0; i != (unsigned)argc; ++i)
Length += strlen(argv[i])+1;
SavedArgs = (char*)malloc(Length);
for (Length = 0, i = 0; i != (unsigned)argc; ++i) {
unsigned Len = strlen(argv[i]);
memcpy(SavedArgs+Length, argv[i], Len);
Length += Len;
SavedArgs[Length++] = ' ';
}
SavedArgsLength = Length;
}
/* write_profiling_data - Write a raw block of profiling counters out to the
* llvmprof.out file. Note that we allow programs to be instrumented with
* multiple different kinds of instrumentation. For this reason, this function
@ -62,16 +69,14 @@ void write_profiling_data(enum ProfilingType PT, unsigned *Start,
/* Output the command line arguments to the file. */
{
const char *Args = "";
int PTy = Arguments;
int ArgLength = strlen(Args);
int Zeros = 0;
write(OutFile, &PTy, sizeof(int));
write(OutFile, &ArgLength, sizeof(int));
write(OutFile, Args, ArgLength);
write(OutFile, &SavedArgsLength, sizeof(unsigned));
write(OutFile, SavedArgs, SavedArgsLength);
/* Pad out to a multiple of four bytes */
if (ArgLength & 3)
write(OutFile, &Zeros, 4-(ArgLength&3));
if (SavedArgsLength & 3)
write(OutFile, &Zeros, 4-(SavedArgsLength&3));
}
}