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| author | H. Peter Anvin (Intel) <hpa@zytor.com> | 2019-08-16 01:42:26 -0700 |
|---|---|---|
| committer | H. Peter Anvin (Intel) <hpa@zytor.com> | 2019-08-16 01:44:49 -0700 |
| commit | 2586cee21dfc45c24b1bec47c0e0f7ddfae3dca8 (patch) | |
| tree | 99cb5569a3f50a20e5d50105a4142791c872bd69 | |
| parent | 7be54b3d0c94e1be0f420bd504aaef1bc7d94155 (diff) | |
| download | nasm-2586cee21dfc45c24b1bec47c0e0f7ddfae3dca8.tar.gz | |
BR 3392472: don't complain on wraparound for lower bit modes
If the address we are using is >= the size of the instruction, then
don't complain on overflow as we can wrap around the top and bottom of
the address space just fine.
Alternatively we could downgrade it to OUT_WRAP in that case.
Reported-by: C. Masloch <pushbx@38.de>
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
| -rw-r--r-- | asm/assemble.c | 3 | ||||
| -rw-r--r-- | test/br3392472.asm | 12 |
2 files changed, 14 insertions, 1 deletions
diff --git a/asm/assemble.c b/asm/assemble.c index e24ebdb5..2394e765 100644 --- a/asm/assemble.c +++ b/asm/assemble.c @@ -376,7 +376,8 @@ static void out(struct out_data *data) amax = ofmt->maxbits >> 3; /* Maximum address size in bytes */ if ((ofmt->flags & OFMT_KEEP_ADDR) == 0 && data->tsegment == fixseg && data->twrt == NO_SEG) { - warn_overflow_out(addrval, asize, data->sign); + if (asize < (data->bits >> 3)) + warn_overflow_out(addrval, asize, data->sign); xdata.q = cpu_to_le64(addrval); data->data = xdata.b; data->type = OUT_RAWDATA; diff --git a/test/br3392472.asm b/test/br3392472.asm new file mode 100644 index 00000000..7f326eaa --- /dev/null +++ b/test/br3392472.asm @@ -0,0 +1,12 @@ +org 0 +%ifndef SEEK + %define SEEK 0 +%endif +times SEEK - ($ - $$) nop +jmp near init + +%ifndef NUM + %define NUM 9956h +%endif +times NUM - ($ - $$) db 0 +init: |