Commit Graph

126 Commits

Author SHA1 Message Date
Chris Lattner 9c6c94a806 simple optimization: don't bother calling "exists" (which calls the syscall
"access").  Instead, just let the open call fail if the file doesn't exist.
This reduces the # syscalls executed.

llvm-svn: 29173
2006-07-18 07:07:51 +00:00
Chris Lattner 4a5641525d Remove a dead conditional: info_ can only be allocated if FD is good. Improve
spacing

llvm-svn: 29172
2006-07-18 07:03:14 +00:00
Chris Lattner 7bc8197032 The only entry in the stat buf this code cares about is the size. Keep just
the size, not the whole stat buffer.

llvm-svn: 29171
2006-07-18 07:01:08 +00:00
Chris Lattner fe5b7fe6d9 Reduce code in the error path by only allocating info_ if everything looks
good.

llvm-svn: 29170
2006-07-18 06:57:51 +00:00
Chris Lattner 3eb42b7d14 Unindent some code
llvm-svn: 29169
2006-07-18 06:52:52 +00:00
Chris Lattner 78731ab1b8 Turn an if into an else if.
llvm-svn: 29129
2006-07-12 22:37:18 +00:00
Chris Lattner 0b2890e390 no need to do a stat then an lstat. lstat will tell us if normal files don't exist.
llvm-svn: 29068
2006-07-07 21:21:06 +00:00
Chris Lattner 5a9d2e5a0a Change AllocateRWX/DeallocateRWX to not throw an exception.
llvm-svn: 29058
2006-07-07 17:32:37 +00:00
Reid Spencer 57e8e38a6f Only print the stack trace if it was requested. Previously, any call into
the Signals module that registered the handlers would cause the stack trace
to be generated. Now, you must explicitly call PrintStackTraceOnErrorSignal
in order for that to happen.

llvm-svn: 28810
2006-06-16 00:00:57 +00:00
Evan Cheng 09cf82992b Don't pull in environ, not always safe. Global variables are bad anyway.
Use execve when explicit environment variables ptr is available. Otherwise
just use execv.

llvm-svn: 28740
2006-06-09 20:43:11 +00:00
Reid Spencer ab97f22ccc For PR787:
Provide new llvm::sys::Program facilities for converting the stdout and
stdin to binary mode. There is no standard way to do this and the available
mechanisms are platform specific. Adjust the bytecode reader and writer to
use these methods when their input is stdin or output is stdout. THis avoids
the problem with \n writing CRLF to a bytecode file on windows.

Patch Contributed by Michael Smith.

llvm-svn: 28722
2006-06-07 23:18:34 +00:00
Chris Lattner f64397ba1a This function is not documented as throwing an exception and callers don't
handle it.  Just silently fail.

llvm-svn: 28291
2006-05-14 18:53:09 +00:00
Chris Lattner 227d442d01 Fix accidentally committed patch.
llvm-svn: 28260
2006-05-12 18:20:39 +00:00
Chris Lattner 1971e8a77b Fix iterator invalidation bug, identified by Coverity.
llvm-svn: 28257
2006-05-12 18:13:11 +00:00
Reid Spencer ccd5b90f58 For PR351:
* Allow the ExecuteAndWait to return negative values if a signal is
  detected as the reason for the child termination. This is needed to
  support bugpoint detecting bad things in its child processes.

llvm-svn: 24960
2005-12-22 20:00:16 +00:00
Reid Spencer 3493dab23b Implement a generic polled Alarm function. This merely removes the system
dependent portion of the lib/Support/SlowOperationTimer code into the
lib/System implementation where it can be ported to different platforms.

llvm-svn: 24937
2005-12-22 03:23:46 +00:00
Chris Lattner 16cbc6a177 instead of using mstats, use malloc_zone_statistics which returns numbers
that actually make sense.

llvm-svn: 24352
2005-11-14 07:27:56 +00:00
Chris Lattner 698fa760f4 Teach -track-memory to work on darwin. Looking at sbrk doesn't work because
the default allocator uses mmap.

llvm-svn: 24349
2005-11-14 07:00:29 +00:00
Chris Lattner 6a5d6ecd09 Implement sys::SetInterruptFunction on Unix, stub it on win32 so that the
build will not fail

llvm-svn: 22578
2005-08-02 02:14:22 +00:00
Andrew Lenharth 0940218cca support near allocations for the JIT
llvm-svn: 22554
2005-07-29 23:40:16 +00:00
Reid Spencer 29f83e0997 Fix a problem in getDirectoryContents where sub-directory names were
appended to a path string that didn't end in a slash, yielding invalid
path names.

Path contribute by Nicholas Riley.

llvm-svn: 22539
2005-07-28 16:25:57 +00:00
Reid Spencer f404981bf2 For PR540:
Add a Mutex class for thread synchronization in a platform-independent way.
The current implementation only supports pthreads. Win32 use of Critical
Sections will be added later. The design permits other threading models to
be used if (and only if) pthreads is not available.

llvm-svn: 22403
2005-07-12 15:37:43 +00:00
Jeff Cohen 5b106d0fed 1. Fix bug in getBaseName where it mishandles suffixes
2. Fix bug in eraseSuffix where it allows /path/.suffix to become /path/

llvm-svn: 22362
2005-07-09 18:42:02 +00:00
Reid Spencer 2d85f5697d Ensure that functions like isDirectory don't fail if the file doesn't
exist but just return false instead.

llvm-svn: 22361
2005-07-08 17:46:10 +00:00
Reid Spencer d28e432c36 Two changes:
1. Use isValid() to check validity of the resulting path name in the
   eraseSuffix even though we can't think of a case where eraseSuffix could
   possibly cause an invalid path name.
2. Rewrite isValid() to not use the deprecated realpath function any more.
   It now just uses isascii to make sure all the characters are legit.

llvm-svn: 22359
2005-07-08 06:53:26 +00:00
Jeff Cohen f50677610f Stamp out tabs
llvm-svn: 22357
2005-07-08 05:02:13 +00:00
Jeff Cohen 4c24144ddf Fix eraseSuffix()
llvm-svn: 22355
2005-07-08 04:49:16 +00:00
Reid Spencer af48d8643d Final Changes For PR495:
This chagne just renames some sys::Path methods to ensure they are not
misused. The Path documentation now divides methods into two dimensions:
Path/Disk and accessor/mutator. Path accessors and mutators only operate
on the Path object itself without making any disk accesses. Disk accessors
and mutators will also access or modify the file system. Because of the
potentially destructive nature of disk mutators, it was decided that all
such methods should end in the work "Disk" to ensure the user recognizes
that the change will occur on the file system. This patch makes that
change. The method name changes are:

makeReadable        -> makeReadableOnDisk
makeWriteable       -> makeWriteableOnDisk
makeExecutable      -> makeExecutableOnDisk
setStatusInfo       -> setStatusInfoOnDisk
createDirectory     -> createDirectoryOnDisk
createFile          -> createFileOnDisk
createTemporaryFile -> createTemporaryFileOnDisk
destroy             -> eraseFromDisk
rename              -> renamePathOnDisk

These changes pass the Linux Deja Gnu tests.

llvm-svn: 22354
2005-07-08 03:08:58 +00:00
Reid Spencer c9c0473fa5 For PR495:
Get rid of the difference between file paths and directory paths. The Path
class now simply stores a path that can refer to either a file or a
directory. This required various changes in the implementation and interface
of the class with the corresponding impact to its users. Doxygen comments were
also updated to reflect these changes. Interface changes are:

appendDirectory -> appendComponent
appendFile -> appendComponent
elideDirectory -> eraseComponent
elideFile -> eraseComponent
elideSuffix -> eraseSuffix
renameFile -> rename
setDirectory -> set
setFile -> set

Changes pass Dejagnu and llvm-test/SingleSource tests.

llvm-svn: 22349
2005-07-07 23:21:43 +00:00
Reid Spencer 5b891e9847 For PR495:
Change interface to Path class:
readable -> canRead
writable -> canWrite
executable -> canExecute

More (incremental) changes coming to close 495.

llvm-svn: 22345
2005-07-07 18:21:42 +00:00
Reid Spencer d1ef1df103 Put in a hack for Cygwin that prevents mkdtemp from being used since
configure seems to find it on Cygwin but linking against it fails.

llvm-svn: 22189
2005-06-02 05:38:20 +00:00
Duraid Madina 3dbbc88f52 comment the hpux bit
llvm-svn: 22081
2005-05-16 06:59:53 +00:00
Misha Brukman 291f6b7223 Remove vim settings from source code; people should use llvm/utils/vim/vimrc
llvm-svn: 21704
2005-05-05 22:33:09 +00:00
Alkis Evlogimenos 7afc9558e0 Silence gcc-4.0.0 warnings.
llvm-svn: 21453
2005-04-22 17:56:01 +00:00
Misha Brukman 10468d8a3c Remove trailing whitespace
llvm-svn: 21422
2005-04-21 22:55:34 +00:00
Reid Spencer 2d45e25125 Provide an implementation of the GetCurrentUserId and GetCurrentGroupId
methods that were recently added to the interface.

llvm-svn: 21401
2005-04-21 16:12:57 +00:00
Reid Spencer 8424ba373e For Bug 543:
Standardize the error messages to be in "path: what failed: why" format.
Also attempt to use the correct errno to ThrowErrno in situations where
the errno value is erased by subsequent system calls.

llvm-svn: 21385
2005-04-21 02:50:10 +00:00
Reid Spencer b02566dc1c For Bug 543:
Allow the ThrowErrno function to optionally accept an error number
parameter so that callers can specify the error number to be used.

llvm-svn: 21384
2005-04-21 02:30:32 +00:00
Misha Brukman 5e7bac21d5 Add FIXME by Markus Oberhumer from bug 545: not checking for "." in $PATH may
result in returning executable files that won't be runnable.

llvm-svn: 21378
2005-04-20 15:42:11 +00:00
Misha Brukman a9a8c1b65b Do not mark directories as `executable', we only want program files
Patch by Markus Oberhumer.

llvm-svn: 21377
2005-04-20 15:33:22 +00:00
Misha Brukman 1001aea4d3 Ignore dangling symlinks in getDirectoryContents()
Thanks to Markus Oberhumer for the patch!

llvm-svn: 21370
2005-04-20 04:04:07 +00:00
Reid Spencer a556669219 Be slightly more accurate in an error message.
llvm-svn: 20397
2005-03-02 05:45:56 +00:00
Chris Lattner 6e528dce90 Fix a bug in my previous change to this, which broke the build on sparcs.
llvm-svn: 20184
2005-02-14 21:42:10 +00:00
Chris Lattner 743dd2cd80 If errno is zero strerror_r does not modify the buffer, leaving it unterminated.
This causes garbage to be printed out after error messages.

llvm-svn: 20165
2005-02-13 22:46:37 +00:00
Chris Lattner 8bdd0fc7aa Fix bugpoint
llvm-svn: 19605
2005-01-16 04:23:22 +00:00
Reid Spencer cbeed3571a Make asctime_r work for HP/UX.
llvm-svn: 19544
2005-01-14 00:50:50 +00:00
Reid Spencer c892a0db9f Rename Unix/*.cpp and Win32/*.cpp to have a *.inc suffix so that the silly
gdb debugger doesn't get confused on which file it is reading (the one in
lib/System or the one in lib/System/{Win32,Unix})

llvm-svn: 19426
2005-01-09 23:29:00 +00:00
Jeff Cohen 1a26d15c80 Use size_t instead of long to represent memory usage. long is 32 bits
on 64-bit Windows.

llvm-svn: 19393
2005-01-08 20:15:57 +00:00
Reid Spencer 6f802ba876 Add functions for determining if the stdin/out/err is connected to a
console or not.

llvm-svn: 19233
2005-01-01 22:29:26 +00:00
Reid Spencer 0f371a1637 Fix a compilation error for the case where mallinfo() is not available.
llvm-svn: 19201
2004-12-31 05:53:27 +00:00