GrowBuffer() expects that parameter Status is initialized.
LibGetVariableAndSize() currently passes random data from the stack.
Initialize variable Status.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Per https://github.com/tianocore/edk2/blob/master/MdePkg/Include/Library/BaseMemoryLib.h
"(CopyMem) must handle the case where SourceBuffer overlaps DestinationBuffer".
Having the gnu-efi version of CopyMem differ from the EDK2 version can lead to
extremely hard to troubleshoot issues as well as very unexpected results. So
make sure our version follows the same guidelines.
Having to add specific arch include paths and then <gnu-efi>/lib
to be able to use gnu-efi in an application is annoying.
This patch ensures that the library itself takes care of including
the relevant headers, and that one needs only to add <gnu-efi>/inc
in their include path to be able to use gnu-efi.
Per https://github.com/tianocore/edk2/blob/master/MdePkg/Include/Library/PrintLib.h
AsciiPrint() is the official name of APrint() so declare it as such and define
an APrint alias for compatibility.
Also add an AsciiVSPrint() to print a formatted ASCII string to a buffer using
a va_list. AsciiPrint() too is defined in EDK2's PrintLib.h, though our implementation
just invokes the Unicode version and then converts the buffer to ASCII.
The __builtin_va_###() intrinsics apply only to GCC-like compilers and
MSVC's <stdarg.h> works just fine with gnu-efi.
Without this patch, one has to define GNU_EFI_USE_EXTERNAL_STDARG to
make gnu-efi work with a Microsoft toolchain, which is annoying...
As EFI_SHELL_PARAMETERS_PROTOCOL is also defined in UEFI Shell Spec,
put it together with EFI_SHELL_PROTOCOL.
Signed-off-by: Jiaqing Zhao <jiaqing.zhao@intel.com>
Key input should be consumed to prevent WaitForKey event from being
always triggered and potential buffer overflow.
This fixes issue #26.
Signed-off-by: Kagurazaka Kotori <kagurazakakotori@gmail.com>
* __STDC_VERSION__ is undefined when headers are called from C++
code resulting in not using stdint.h and efibind.h
"making a guess" on what they are. extern "C" will not define
__STDC_VERSION__.
* Always leverage stdint.h on C++.
* Honestly, gnu-efi should always use stdint.h, or find a better
way to detect it. (or platforms without it need to catch up to 2007)
Breaks gcc builds with '-nostdinc' flag.
The fix in 1a53d8f88a
(Fix for problem with undeclared intptr_t type), which is also merged
fixes the same problem, without causing breakage.
This reverts commit 6335e5c697.
because of a "make" builtin rule. This breaks make -r, and it is an
inefficient way to build, at least for multiple files.
I have made a git tree which includes a patch for this problem,
and also forces -r by adding it to MAKEFLAGS:
git://git.zytor.com/users/hpa/gnu-efi.git make-r-fixes
Signed-off-by: H. Peter Anvin <hpa@users.sourceforge.net>
Signed-off-by: Nigel Croxon <ncroxon@redhat.com>
Make.rules is not complete; in particular it lacks a %.o: %.S rule.
This happens to work due to the builtin make rule to that effect. but
building with make -r, or building as a sub-make of an environment that
uses make -r (or MAKEFLAGS += -r) causes it to break.
In general, make -r is strongly preferred, and Make.rules seems to have
been created explicitly to support this.
To further complicate things, the rule %.S: %.c causes a completely
incomprehensible error message. This rule is wrong, it should be %.s:
%.c not %.S: %.c.
Finally, the rule %.E: %.c is normally %.i: %.c; .i is the normal
extension for preprocessed C source. The equivalent rule for assembly is
%.s: %.S.
Signed-off-by: H. Peter Anvin <hpa@users.sf.net>
Signed-off-by: Nigel Croxon <ncroxon@redhat.com>
When building gnu-efi with old compilers with pre C90 compilers:
In file included from gnu-efi-3.0.9/lib/../inc/efilib.h:25:0,
from gnu-efi-3.0.9/lib/lib.h:24,
from gnu-efi-3.0.9/lib/dpath.c:25:
gnu-efi-3.0.9/lib/dpath.c: In function 'FileDevicePath':
gnu-efi-3.0.9/lib/../inc/efilink.h:145:47: error: 'intptr_t' undeclared (first use in this function)
#define EFI_FIELD_OFFSET(TYPE,Field) ((UINTN)(intptr_t)(&(((TYPE *) 0)->Field)))
Problem introduced with commit a46a62b12b
(Fix some types gcc doesn't like).
Avoid this by adding intptr_t (and uintptr_t) typedefs for builds that does
not include stdint.h.
Signed-off-by: Esben Haabendal <esben@esben1.localdomain>
On couple of locations in runtime string library (rtstr.c)
there are calls to non-runtime variant of StrLen function.
* Another issue is with formatting 1394 paths.
The F1394_DEVICE_PATH::Guid is formatted as %g, but 1394
GUID is 8 byte integer, not EFI_GUID and therefore should
be formatted as e.g. %016lx (as edk2 does).
* Beyond what's mentioned above, changed the format of the
harddrive path, so it's in line with edk2 format and spec
(2.7 errata A, chapter 10.6.1.6, table 102).
Signed-off-by: Nigel Croxon <ncroxon@redhat.com>
Signed-off-by: manison <manison@users.sf.net>
The arguments to SetMem() were wrong. Besides, SetMem() should start at
"Dest + Size" since "Size" will be smaller than "Len" if they are not
equal.
Signed-off-by: Gary Lin <glin@suse.com>
Signed-off-by: Nigel Croxon <ncroxon@redhat.com>
StrnCpy() doesn't guarantee the dest string will be null-terminated, so
we shouldn't use StrnCpy().
Signed-off-by: Gary Lin <glin@suse.com>
Signed-off-by: Nigel Croxon <ncroxon@redhat.com>
The arguments to SetMem() were wrong. Besides, SetMem() should start at
"Dest + Size" since "Size" will be smaller than "Len" if they are not
equal.
Signed-off-by: Gary Lin <glin@suse.com>
Signed-off-by: Nigel Croxon <ncroxon@redhat.com>
We need the x86_64 and i686 builds of .a's to be the same, and that
means we need to not have timestamps. Also force the timestamps on disk
just in case that doesn't work, because RHEL's ar /silently ignores -D/.
v2: use "ar rvD" not "ar rv -D".
It's a wonder anybody ever gets these command line options right, if
"ar rv -D libfoo.a foo.o" doesn't use deterministic mode (or
complain), but "ar rvD libfoo.a foo.o" does.
v3: Add a bunch of junk to try to set timestamps to 0 manually
For some reason I'm still getting timestamps in the .a even though ar seems to
be invoked correctly. When I do "mock -r rhel-7-build --shell" and run make
manually, they're fine. Very strange.
v4: go back to v2, the problem isn't in the make process.
"ar rDv" works just fine, but /usr/lib/rpm/redhat/brp-strip-static-archive is
calling "%{__strip} -g $for_each.a", and it's rewriting our binary from
ts/uid/gid of 0/0/0 to $epoch/$UID/$GID. Awesomely /usr/bin/strip it seems to
have 3 modes of operation:
-U: the default, which adds $epoch/$UID/$GID to your binary archive
instead of just removing stuff. Clearly the Principle of Least
Surprise is strong here.
-p: preserve the timestamp from the original .a, but add UID and GID,
because this is 1980 and people use ar(1) for archiving stuff they
might want that out of.
-D: Condescend at you in a command line error and explain that -D both
is and is not a valid option:
/usr/bin/strip: invalid option -- 'D'
Usage: /usr/bin/strip <option(s)> in-file(s)
Removes symbols and sections from files
The options are:
...
-D --enable-deterministic-archives
Produce deterministic output when stripping archives
So I agree that it's invalid, but I think we may be pronouncing that
second vowel differently. They say in-VAL-id, I say IN-vuh-lid.
Nobody should ever have to run "strace -ttt -v -f -o make.strace make all",
just to discover the problem isn't even in there.
Related: rhbz#1310782
Signed-off-by: Peter Jones <pjones@redhat.com>
Signed-off-by: Nigel Croxon <ncroxon@redhat.com>
This adds bltgrid and lfbgrid, which draw checkerboards using GOP's
Blt() and linear framebuffer, respectively, and adds some error checks
to modelist.efi.
Signed-off-by: Peter Jones <pjones@redhat.com>
Signed-off-by: Nigel Croxon <ncroxon@redhat.com>
This adds bounded string helper functions:
StrnLen()
StrnCpy()
StrnCat()
StpnCpy()
And the unbounded function StpCpy().
Signed-off-by: Peter Jones <pjones@redhat.com>
Signed-off-by: Nigel Croxon <ncroxon@redhat.com>
