From: Iain Buclaw <ibuclaw@gdcproject.org>
To: gcc-patches <gcc-patches@gcc.gnu.org>,
Ian Lance Taylor <iant@google.com>
Subject: [PATCH 2/7] [D] libiberty: Fail if reached end of symbol string
Date: Wed, 13 May 2015 08:51:00 -0000 [thread overview]
Message-ID: <CABOHX+diWnYZ1Tq_=NP=kremCYOZgtMqzF2g4wnCNJ0bw-yhJg@mail.gmail.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 477 bytes --]
If a symbol that has so far been valid abruptly ends then we will want
to fail the process rather than silently succeed.
---
libiberty/ChangeLog
2015-05-13 Iain Buclaw <ibuclaw@gdcproject.org>
* d-demangle.c (dlang_call_convention): Return NULL if have reached the
end of the symbol, but expected more.
(dlang_attributes): Likewise.
(dlang_function_type): Likewise.
(dlang_type): Likewise.
(dlang_identifier): Likewise.
(dlang_value): Likewise.
[-- Attachment #2: 0002-D-demangle-Fail-early-on-bad-symbols.patch --]
[-- Type: text/x-diff, Size: 1845 bytes --]
From e9806a182f8296d92a99d842edab6a4c29124eb1 Mon Sep 17 00:00:00 2001
From: Iain Buclaw <ibuclaw@gdcproject.org>
Date: Wed, 13 May 2015 08:50:55 +0200
Subject: [PATCH 2/7] D demangle: Fail early on bad symbols
---
libiberty/d-demangle.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/libiberty/d-demangle.c b/libiberty/d-demangle.c
index fa01767..91c6d55 100644
--- a/libiberty/d-demangle.c
+++ b/libiberty/d-demangle.c
@@ -185,7 +185,7 @@ static const char *
dlang_call_convention (string *decl, const char *mangled)
{
if (mangled == NULL || *mangled == '\0')
- return mangled;
+ return NULL;
switch (*mangled)
{
@@ -221,7 +221,7 @@ static const char *
dlang_attributes (string *decl, const char *mangled)
{
if (mangled == NULL || *mangled == '\0')
- return mangled;
+ return NULL;
while (*mangled == 'N')
{
@@ -280,7 +280,7 @@ dlang_function_type (string *decl, const char *mangled)
size_t szattr, szargs, sztype;
if (mangled == NULL || *mangled == '\0')
- return mangled;
+ return NULL;
/* The order of the mangled string is:
CallConvention FuncAttrs Arguments ArgClose Type
@@ -380,7 +380,7 @@ static const char *
dlang_type (string *decl, const char *mangled)
{
if (mangled == NULL || *mangled == '\0')
- return mangled;
+ return NULL;
switch (*mangled)
{
@@ -600,7 +600,7 @@ static const char *
dlang_identifier (string *decl, const char *mangled)
{
if (mangled == NULL || *mangled == '\0')
- return mangled;
+ return NULL;
if (ISDIGIT (*mangled))
{
@@ -1061,7 +1061,7 @@ static const char *
dlang_value (string *decl, const char *mangled, const char *name, char type)
{
if (mangled == NULL || *mangled == '\0')
- return mangled;
+ return NULL;
switch (*mangled)
{
--
2.1.0
next reply other threads:[~2015-05-13 8:51 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-13 8:51 Iain Buclaw [this message]
2015-05-14 13:01 ` Jeff Law
2015-05-14 13:47 ` Iain Buclaw
2015-05-14 15:05 ` Jeff Law
2015-05-14 19:25 ` Iain Buclaw
2015-05-14 20:42 ` Jeff Law
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