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Make sure llee can deal with compressed bytecode too.

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llvm-svn: 17652
This commit is contained in:
Reid Spencer 2004-11-09 20:21:25 +00:00
parent 5be81b837b
commit ec5e394536
1 changed files with 7 additions and 5 deletions
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12
tools/llee/ExecveHandler.c
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@ -21,10 +21,11 @@
#include <string.h> #include <string.h>
/* /*
* This is the expected header for all valid LLVM bytecode files. * These are the expected headers for all valid LLVM bytecode files.
* The first four characters must be exactly this. * The first four characters must be one of these.
*/ */
static const char llvmHeader[] = "llvm"; static const char llvmHeaderUncompressed[] = "llvm";
static const char llvmHeaderCompressed[] = "llvc";
/* /*
* This replacement execve() function first checks the file to be executed * This replacement execve() function first checks the file to be executed
@ -34,7 +35,7 @@ static const char llvmHeader[] = "llvm";
int execve(const char *filename, char *const argv[], char *const envp[]) int execve(const char *filename, char *const argv[], char *const envp[])
{ {
/* Open the file, test to see if first four characters are "llvm" */ /* Open the file, test to see if first four characters are "llvm" */
size_t headerSize = strlen(llvmHeader); size_t headerSize = strlen(llvmHeaderCompressed);
char header[headerSize]; char header[headerSize];
char* realFilename = 0; char* realFilename = 0;
/* /*
@ -57,7 +58,8 @@ int execve(const char *filename, char *const argv[], char *const envp[])
ssize_t bytesRead = read(file, header, headerSize); ssize_t bytesRead = read(file, header, headerSize);
close(file); close(file);
if (bytesRead != (ssize_t)headerSize) return EIO; if (bytesRead != (ssize_t)headerSize) return EIO;
if (!memcmp(llvmHeader, header, headerSize)) { if (!memcmp(llvmHeaderCompressed, header, headerSize) ||
!memcmp(llvmHeaderUncompressed, header, headerSize)) {
/* /*
* This is a bytecode file, so execute the JIT with the program and * This is a bytecode file, so execute the JIT with the program and
* parameters. * parameters.