* nasm-2.14.xx: (83 commits)
NASM 2.14rc16
doc: Update changes
preproc: expand_smacro -- Fix nil dereference on error path
eval: Eliminate division by zero
doc: Update changes
opflags: Convert is_class and is_reg_class to helpers
preproc: Fix out of range access in expand mmacro
doc: Update changes
parser: Fix sigsegv on certain equ instruction parsing
labels: Make sure nil label is never passed
labels: Don't nil dereference if no label provided
macho: Add warning message in macho_output()
macho/reloc: Fix addr size sensitive conditions
macho/reloc: Fix macho_output() to get the offset adjustments by add_reloc()
macho/reloc: Fixed offset adjustment in add_reloc()
macho/reloc: Allow absolute relocation when forcing a symbol reference
macho/reloc: Adjust SUB relocation information
macho/reloc: Fixed in handling GOT/GOTLOAD/TLV relocations
macho/reloc: Simplified relocation for REL/BRANCH
macho/sym: Record initial symbol number always
...
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Formatting errors -- syntax errors -- are errors, no matter which pass
they end up in. ERR_PASS1 is just plain crazy: if we end up with a
formatting error on the code-generation pass, we are in a world of
hurt.
Defer warnings to the code-generation pass; that's the pass which
matters value-wise, and that way we get the warnings in the list file,
too.
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
When we suffer an underflow that cross limb boundaries, it is possible
to end up with a stack underflow. Put in an explicit check for this
case (the mantissa will be zero in this case.)
https://bugzilla.nasm.us/show_bug.cgi?id=3392445
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
diff --git a/asm/float.c b/asm/float.c
index dcf69fea..2965d3db 100644
--- a/asm/float.c
+++ b/asm/float.c
@@ -608,6 +608,8 @@ static void ieee_shr(fp_limb *mant, int i)
if (offs)
for (j = MANT_LIMBS-1; j >= offs; j--)
mant[j] = mant[j-offs];
+ } else if (MANT_LIMBS-1-offs < 0) {
+ j = MANT_LIMBS-1;
} else {
n = mant[MANT_LIMBS-1-offs] >> sr;
for (j = MANT_LIMBS-1; j > offs; j--) {
Nearly all instances of nasm_fatal() and nasm_panic() take a flags
argument of zero. Simplify the code by making nasm_fatal and
nasm_panic default to no flags, and add an alternate version if flags
really are desired. This also means that every call site doesn't have
to initialize a zero argument.
Furthermore, ERR_NOFILE is now often not necessary, as the error code
will no longer cause a null reference if there is no current
file. Therefore, we can remove many instances of ERR_NOFILE which only
deprives the user of information.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
It turns out that the calculation of "twopwr" in ieee_flconvert_bin()
was more complex than necessary, and wrong in the case of a pure
fraction.
Reported-by: Roel <roelsuidgeest@zonnet.nl>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Move directive processing to its own file, and move nasmlib/error.c to
asm/error.c (it was not used by the disassembler); remove some extern
declarations from .c files, and do some general code cleanups.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Make the source code easier to understand and keep track of by
organizing it into subdirectories depending on the function.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
