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| author | Alan Modra <amodra@gmail.com> | 2020-09-02 10:29:21 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2020-09-02 16:30:43 +0930 |
| commit | c77a6ef6109c10e999b33e8f762809701084109c (patch) | |
| tree | c38e0192b831a6dc32dd6c2c10f8d1b186d6123d | |
| parent | 01a6f9da644e52fbd644a8e8f58d58c0383118c8 (diff) | |
| download | gdb-c77a6ef6109c10e999b33e8f762809701084109c.zip gdb-c77a6ef6109c10e999b33e8f762809701084109c.tar.gz gdb-c77a6ef6109c10e999b33e8f762809701084109c.tar.bz2 | |
ubsan: expr.c:1725,1741 signed integer overflow
* expr.c (add_to_result, subtract_from_result): Use unsigned
addition and subtraction.
| -rw-r--r-- | gas/ChangeLog | 5 | ||||
| -rw-r--r-- | gas/expr.c | 4 |
2 files changed, 7 insertions, 2 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index 641b68d..004834f 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,5 +1,10 @@ 2020-09-02 Alan Modra <amodra@gmail.com> + * expr.c (add_to_result, subtract_from_result): Use unsigned + addition and subtraction. + +2020-09-02 Alan Modra <amodra@gmail.com> + * config/tc-z80.c (is_overflow): Avoid too large shift. 2020-09-02 Alan Modra <amodra@gmail.com> @@ -1722,7 +1722,7 @@ add_to_result (expressionS *resultP, offsetT amount, int rhs_highbit) valueT ures = resultP->X_add_number; valueT uamount = amount; - resultP->X_add_number += amount; + resultP->X_add_number += uamount; resultP->X_extrabit ^= rhs_highbit; @@ -1738,7 +1738,7 @@ subtract_from_result (expressionS *resultP, offsetT amount, int rhs_highbit) valueT ures = resultP->X_add_number; valueT uamount = amount; - resultP->X_add_number -= amount; + resultP->X_add_number -= uamount; resultP->X_extrabit ^= rhs_highbit; |