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From: Paul F. <pa...@so...> - 2023-03-11 15:49:13
|
https://sourceware.org/git/gitweb.cgi?p=valgrind.git;h=96a66dfda6e0f4c43e633aa4bd2a60389073a41c commit 96a66dfda6e0f4c43e633aa4bd2a60389073a41c Author: Paul Floyd <pj...@wa...> Date: Sat Mar 11 16:47:56 2023 +0100 doc: Add asan equivalent to --realloc-zero-bytes-frees to manual-core Diff: --- docs/xml/manual-core.xml | 3 +++ 1 file changed, 3 insertions(+) diff --git a/docs/xml/manual-core.xml b/docs/xml/manual-core.xml index 20886fe49e..296fc1c2a9 100644 --- a/docs/xml/manual-core.xml +++ b/docs/xml/manual-core.xml @@ -1802,6 +1802,9 @@ that can report errors, e.g. Memcheck, but not Cachegrind.</para> consider using <computeroutput>--realloc-zero-bytes-frees=no</computeroutput>. </para> + <para>Address Sanitizer has a similar and even wordier option + <computeroutput>allocator_frees_and_returns_null_on_realloc_zero</computeroutput>. + </para> </listitem> </varlistentry> |
|
From: Paul F. <pa...@so...> - 2023-03-11 15:33:16
|
https://sourceware.org/git/gitweb.cgi?p=valgrind.git;h=036bf06734321b352e1069b561a4730e5daff52f commit 036bf06734321b352e1069b561a4730e5daff52f Author: Paul Floyd <pj...@wa...> Date: Sat Mar 11 16:31:43 2023 +0100 Refactor: reorder a few structs to make them more compact Used pahole to find candidates. Don't have any performance measurements, but it won't do any harm. Diff: --- coregrind/m_errormgr.c | 4 ++-- coregrind/m_hashtable.c | 2 +- memcheck/mc_include.h | 2 +- 3 files changed, 4 insertions(+), 4 deletions(-) diff --git a/coregrind/m_errormgr.c b/coregrind/m_errormgr.c index 52505ba5b2..6be637190a 100644 --- a/coregrind/m_errormgr.c +++ b/coregrind/m_errormgr.c @@ -130,9 +130,9 @@ struct _Error { // which it can be referred to afterwords. Currently only used for // XML printing. UInt unique; + Int count; // NULL if unsuppressed; or ptr to suppression record. Supp* supp; - Int count; // The tool-specific part ThreadId tid; // Initialised by core @@ -225,8 +225,8 @@ typedef (0..)) for 'skind'. */ struct _Supp { struct _Supp* next; - Int count; // The number of times this error has been suppressed. HChar* sname; // The name by which the suppression is referred to. + Int count; // The number of times this error has been suppressed. // Index in VG_(clo_suppressions) giving filename from which suppression // was read, and the lineno in this file where sname was read. diff --git a/coregrind/m_hashtable.c b/coregrind/m_hashtable.c index 19c604d3a6..586cfcc4f3 100644 --- a/coregrind/m_hashtable.c +++ b/coregrind/m_hashtable.c @@ -45,8 +45,8 @@ struct _VgHashTable { UInt n_elements; VgHashNode* iterNode; // current iterator node UInt iterChain; // next chain to be traversed by the iterator - VgHashNode** chains; // expanding array of hash chains Bool iterOK; // table safe to iterate over? + VgHashNode** chains; // expanding array of hash chains const HChar* name; // name of table (for debugging only) }; diff --git a/memcheck/mc_include.h b/memcheck/mc_include.h index 3c1b1a7cd4..c30ec48efb 100644 --- a/memcheck/mc_include.h +++ b/memcheck/mc_include.h @@ -455,9 +455,9 @@ typedef SizeT szB; // Sum of all MC_Chunk.szB values. SizeT indirect_szB; // Sum of all LC_Extra.indirect_szB values. UInt num_blocks; // Number of blocks represented by the record. + UInt old_num_blocks; // output only the changed/new loss records SizeT old_szB; // old_* values are the values found during the SizeT old_indirect_szB; // previous leak search. old_* values are used to - UInt old_num_blocks; // output only the changed/new loss records } LossRecord; |
|
From: Paul F. <pa...@so...> - 2023-03-11 07:08:07
|
https://sourceware.org/git/gitweb.cgi?p=valgrind.git;h=678b685c7b0d982a5a1142ff598ab0f2eab8e794 commit 678b685c7b0d982a5a1142ff598ab0f2eab8e794 Author: Paul Floyd <pj...@wa...> Date: Sat Mar 11 08:07:06 2023 +0100 regtest: update one expected after fixing realloc_size_zero_mismatch.cpp Diff: --- memcheck/tests/realloc_size_zero_mismatch.stderr.exp | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/memcheck/tests/realloc_size_zero_mismatch.stderr.exp b/memcheck/tests/realloc_size_zero_mismatch.stderr.exp index f7c535574b..141ab8b7ad 100644 --- a/memcheck/tests/realloc_size_zero_mismatch.stderr.exp +++ b/memcheck/tests/realloc_size_zero_mismatch.stderr.exp @@ -1,28 +1,28 @@ realloc() with size 0 at 0x........: realloc (vg_replace_malloc.c:...) - by 0x........: main (realloc_size_zero_mismatch.cpp:15) + by 0x........: main (realloc_size_zero_mismatch.cpp:16) Address 0x........ is 0 bytes inside a block of size 1,024 alloc'd at 0x........: ...operator new[]... (vg_replace_malloc.c:...) - by 0x........: main (realloc_size_zero_mismatch.cpp:11) + by 0x........: main (realloc_size_zero_mismatch.cpp:12) Mismatched free() / delete / delete [] at 0x........: realloc (vg_replace_malloc.c:...) - by 0x........: main (realloc_size_zero_mismatch.cpp:15) + by 0x........: main (realloc_size_zero_mismatch.cpp:16) Address 0x........ is 0 bytes inside a block of size 1,024 alloc'd at 0x........: ...operator new[]... (vg_replace_malloc.c:...) - by 0x........: main (realloc_size_zero_mismatch.cpp:11) + by 0x........: main (realloc_size_zero_mismatch.cpp:12) Mismatched free() / delete / delete [] at 0x........: ...operator delete[]... (vg_replace_malloc.c:...) - by 0x........: main (realloc_size_zero_mismatch.cpp:25) + by 0x........: main (realloc_size_zero_mismatch.cpp:26) Address 0x........ is 0 bytes inside a block of size 1 alloc'd at 0x........: realloc (vg_replace_malloc.c:...) - by 0x........: main (realloc_size_zero_mismatch.cpp:15) + by 0x........: main (realloc_size_zero_mismatch.cpp:16) Mismatched free() / delete / delete [] at 0x........: ...operator delete[]... (vg_replace_malloc.c:...) - by 0x........: main (realloc_size_zero_mismatch.cpp:40) + by 0x........: main (realloc_size_zero_mismatch.cpp:41) Address 0x........ is 0 bytes after a block of size 0 alloc'd at 0x........: realloc (vg_replace_malloc.c:...) - by 0x........: main (realloc_size_zero_mismatch.cpp:30) + by 0x........: main (realloc_size_zero_mismatch.cpp:31) |
|
From: Paul F. <pa...@so...> - 2023-03-11 05:50:13
|
https://sourceware.org/git/gitweb.cgi?p=valgrind.git;h=d9a8c601af8182f5b0b11da6a6e0f657fa087405 commit d9a8c601af8182f5b0b11da6a6e0f657fa087405 Author: Paul Floyd <pj...@wa...> Date: Sat Mar 11 06:49:13 2023 +0100 regtest: build failure on Linux ppc64le, missing header Diff: --- memcheck/tests/realloc_size_zero_mismatch.cpp | 1 + 1 file changed, 1 insertion(+) diff --git a/memcheck/tests/realloc_size_zero_mismatch.cpp b/memcheck/tests/realloc_size_zero_mismatch.cpp index 13d1e58832..ba809ee17b 100644 --- a/memcheck/tests/realloc_size_zero_mismatch.cpp +++ b/memcheck/tests/realloc_size_zero_mismatch.cpp @@ -1,5 +1,6 @@ #include <iostream> #include <cstdlib> +#include <cstdio> #include <cerrno> using std::realloc; |