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From: Paul F. <pa...@so...> - 2023-03-09 19:59:59
|
https://sourceware.org/git/gitweb.cgi?p=valgrind.git;h=f6ee38b419ee0e26e39fcf4a528ca60e3e5802d2 commit f6ee38b419ee0e26e39fcf4a528ca60e3e5802d2 Author: Paul Floyd <pj...@wa...> Date: Thu Mar 9 20:58:12 2023 +0100 Malloc replacements: add some C++14/17 comments Rearrange the code to group C++ 14 operator deeltes together. Diff: --- coregrind/m_replacemalloc/vg_replace_malloc.c | 124 +++++++++++++++++--------- 1 file changed, 80 insertions(+), 44 deletions(-) diff --git a/coregrind/m_replacemalloc/vg_replace_malloc.c b/coregrind/m_replacemalloc/vg_replace_malloc.c index 05bc9a4f61..8781645e85 100644 --- a/coregrind/m_replacemalloc/vg_replace_malloc.c +++ b/coregrind/m_replacemalloc/vg_replace_malloc.c @@ -114,6 +114,23 @@ mid-06: could be improved, since we can now intercept in the main executable too. + + 2023-03: + + There seem to be an ever increasing number of C++ new and delete + oveloads. + + See + https://en.cppreference.com/w/cpp/memory/new/operator_new + https://en.cppreference.com/w/cpp/memory/new/operator_delete + + We need to redirect the "replaceable" versions. + + Anything "user-defined" or "class-specific" we can't know + about and the user needs to use memory pool annotation. + + "non-alocating placement" as the name implies does not + allocate. Placement deletes are no-ops. */ @@ -938,6 +955,35 @@ extern int *___errno (void) __attribute__((weak)); /*---------------------- delete ----------------------*/ +#if defined(VGO_linux) + // operator delete(void*), not mangled (for gcc 2.96) + FREE(VG_Z_LIBSTDCXX_SONAME, __builtin_delete, __builtin_delete ); + FREE(VG_Z_LIBC_SONAME, __builtin_delete, __builtin_delete ); + // operator delete(void*), GNU mangling + FREE(VG_Z_LIBSTDCXX_SONAME, _ZdlPv, __builtin_delete ); + FREE(VG_Z_LIBCXX_SONAME, _ZdlPv, __builtin_delete ); + FREE(VG_Z_LIBC_SONAME, _ZdlPv, __builtin_delete ); + FREE(SO_SYN_MALLOC, _ZdlPv, __builtin_delete ); + +#elif defined(VGO_freebsd) + FREE(VG_Z_LIBSTDCXX_SONAME, _ZdlPv, __builtin_delete ); + FREE(VG_Z_LIBCXX_SONAME, _ZdlPv, __builtin_delete ); + FREE(SO_SYN_MALLOC, _ZdlPv, __builtin_delete ); + +#elif defined(VGO_darwin) + // operator delete(void*), GNU mangling + //FREE(VG_Z_LIBSTDCXX_SONAME, _ZdlPv, __builtin_delete ); + //FREE(VG_Z_LIBC_SONAME, _ZdlPv, __builtin_delete ); + +#elif defined(VGO_solaris) + // operator delete(void*), GNU mangling + FREE(VG_Z_LIBSTDCXX_SONAME, _ZdlPv, __builtin_delete ); + FREE(SO_SYN_MALLOC, _ZdlPv, __builtin_delete ); + +#endif + + /*------------------- C++14 delete sized -------------------*/ + #define DELETE_SIZED(soname, fnname, vg_replacement) \ \ void VG_REPLACE_FUNCTION_EZU(10050,soname,fnname) (void *p, SizeT size); \ @@ -952,21 +998,13 @@ extern int *___errno (void) __attribute__((weak)); } #if defined(VGO_linux) - // operator delete(void*), not mangled (for gcc 2.96) - FREE(VG_Z_LIBSTDCXX_SONAME, __builtin_delete, __builtin_delete ); - FREE(VG_Z_LIBC_SONAME, __builtin_delete, __builtin_delete ); - // operator delete(void*), GNU mangling - FREE(VG_Z_LIBSTDCXX_SONAME, _ZdlPv, __builtin_delete ); - FREE(VG_Z_LIBCXX_SONAME, _ZdlPv, __builtin_delete ); - FREE(VG_Z_LIBC_SONAME, _ZdlPv, __builtin_delete ); - FREE(SO_SYN_MALLOC, _ZdlPv, __builtin_delete ); - // operator delete(void*, unsigned int), C++14, GNU mangling + // operator delete(void*, unsigned int) #if __SIZEOF_SIZE_T__ == 4 DELETE_SIZED(VG_Z_LIBSTDCXX_SONAME, _ZdlPvj, __builtin_delete ); DELETE_SIZED(VG_Z_LIBCXX_SONAME, _ZdlPvj, __builtin_delete ); DELETE_SIZED(VG_Z_LIBC_SONAME, _ZdlPvj, __builtin_delete ); DELETE_SIZED(SO_SYN_MALLOC, _ZdlPvj, __builtin_delete ); - // operator delete(void*, unsigned long), C++14, GNU mangling + // operator delete(void*, unsigned long) #elif __SIZEOF_SIZE_T__ == 8 DELETE_SIZED(VG_Z_LIBSTDCXX_SONAME, _ZdlPvm, __builtin_delete ); DELETE_SIZED(VG_Z_LIBCXX_SONAME, _ZdlPvm, __builtin_delete ); @@ -974,33 +1012,23 @@ extern int *___errno (void) __attribute__((weak)); DELETE_SIZED(SO_SYN_MALLOC, _ZdlPvm, __builtin_delete ); #endif - #elif defined(VGO_freebsd) - FREE(VG_Z_LIBSTDCXX_SONAME, _ZdlPv, __builtin_delete ); - FREE(VG_Z_LIBCXX_SONAME, _ZdlPv, __builtin_delete ); - FREE(SO_SYN_MALLOC, _ZdlPv, __builtin_delete ); - // operator delete(void*, unsigned long), C++14, GNU mangling + // operator delete(void*, unsigned int) #if __SIZEOF_SIZE_T__ == 4 DELETE_SIZED(VG_Z_LIBSTDCXX_SONAME, _ZdlPvj, __builtin_delete ); DELETE_SIZED(VG_Z_LIBCXX_SONAME, _ZdlPvj, __builtin_delete ); DELETE_SIZED(SO_SYN_MALLOC, _ZdlPvj, __builtin_delete ); #elif __SIZEOF_SIZE_T__ == 8 + // operator delete(void*, unsigned long) DELETE_SIZED(VG_Z_LIBSTDCXX_SONAME, _ZdlPvm, __builtin_delete ); DELETE_SIZED(VG_Z_LIBCXX_SONAME, _ZdlPvm, __builtin_delete ); DELETE_SIZED(SO_SYN_MALLOC, _ZdlPvm, __builtin_delete ); #endif #elif defined(VGO_darwin) - // operator delete(void*), GNU mangling - //FREE(VG_Z_LIBSTDCXX_SONAME, _ZdlPv, __builtin_delete ); - //FREE(VG_Z_LIBC_SONAME, _ZdlPv, __builtin_delete ); #elif defined(VGO_solaris) - // operator delete(void*), GNU mangling - FREE(VG_Z_LIBSTDCXX_SONAME, _ZdlPv, __builtin_delete ); - FREE(SO_SYN_MALLOC, _ZdlPv, __builtin_delete ); - - // operator delete(void*, unsigned long), C++14, GNU mangling + // operator delete(void*, unsigned long) #if __SIZEOF_SIZE_T__ == 4 DELETE_SIZED(VG_Z_LIBSTDCXX_SONAME, _ZdlPvj, __builtin_delete ); DELETE_SIZED(SO_SYN_MALLOC, _ZdlPvj, __builtin_delete ); @@ -1009,7 +1037,6 @@ extern int *___errno (void) __attribute__((weak)); DELETE_SIZED(SO_SYN_MALLOC, _ZdlPvm, __builtin_delete ); #endif - #endif /*------------------- C++17 delete aligned -------------------*/ @@ -1168,7 +1195,31 @@ extern int *___errno (void) __attribute__((weak)); FREE(VG_Z_LIBC_SONAME, _ZdaPv, __builtin_vec_delete ); FREE(SO_SYN_MALLOC, _ZdaPv, __builtin_vec_delete ); -// operator delete[](void*, unsigned long), C++14, GNU mangling +#elif defined(VGO_freebsd) + // operator delete[](void*), GNU mangling + FREE(VG_Z_LIBSTDCXX_SONAME, _ZdaPv, __builtin_vec_delete ); + FREE(VG_Z_LIBCXX_SONAME, _ZdaPv, __builtin_vec_delete ); + FREE(SO_SYN_MALLOC, _ZdaPv, __builtin_vec_delete ); + +#elif defined(VGO_darwin) + // operator delete[](void*), not mangled (for gcc 2.96) + //FREE(VG_Z_LIBSTDCXX_SONAME, __builtin_vec_delete, __builtin_vec_delete ); + //FREE(VG_Z_LIBC_SONAME, __builtin_vec_delete, __builtin_vec_delete ); + // operator delete[](void*), GNU mangling + //FREE(VG_Z_LIBSTDCXX_SONAME, _ZdaPv, __builtin_vec_delete ); + //FREE(VG_Z_LIBC_SONAME, _ZdaPv, __builtin_vec_delete ); + +#elif defined(VGO_solaris) + // operator delete[](void*), GNU mangling + FREE(VG_Z_LIBSTDCXX_SONAME, _ZdaPv, __builtin_vec_delete ); + FREE(SO_SYN_MALLOC, _ZdaPv, __builtin_vec_delete ); + +#endif + +/*---------------------- C++14 delete sized [] ----------------------*/ + +#if defined(VGO_linux) +// operator delete[](void*, unsigned int) #if __SIZEOF_SIZE_T__ == 4 DELETE_SIZED(VG_Z_LIBSTDCXX_SONAME, _ZdaPvj, __builtin_vec_delete ); DELETE_SIZED(VG_Z_LIBCXX_SONAME, _ZdaPvj, __builtin_vec_delete ); @@ -1183,11 +1234,7 @@ extern int *___errno (void) __attribute__((weak)); #endif #elif defined(VGO_freebsd) - // operator delete[](void*), GNU mangling - FREE(VG_Z_LIBSTDCXX_SONAME, _ZdaPv, __builtin_vec_delete ); - FREE(VG_Z_LIBCXX_SONAME, _ZdaPv, __builtin_vec_delete ); - FREE(SO_SYN_MALLOC, _ZdaPv, __builtin_vec_delete ); - // operator delete[](void*, unsigned long), C++14, GNU mangling + // operator delete[](void*, unsigned int) #if __SIZEOF_SIZE_T__ == 4 DELETE_SIZED(VG_Z_LIBSTDCXX_SONAME, _ZdaPvj, __builtin_vec_delete ); DELETE_SIZED(VG_Z_LIBCXX_SONAME, _ZdaPvj, __builtin_vec_delete ); @@ -1199,23 +1246,13 @@ extern int *___errno (void) __attribute__((weak)); #endif #elif defined(VGO_darwin) - // operator delete[](void*), not mangled (for gcc 2.96) - //FREE(VG_Z_LIBSTDCXX_SONAME, __builtin_vec_delete, __builtin_vec_delete ); - //FREE(VG_Z_LIBC_SONAME, __builtin_vec_delete, __builtin_vec_delete ); - // operator delete[](void*), GNU mangling - //FREE(VG_Z_LIBSTDCXX_SONAME, _ZdaPv, __builtin_vec_delete ); - //FREE(VG_Z_LIBC_SONAME, _ZdaPv, __builtin_vec_delete ); #elif defined(VGO_solaris) - // operator delete[](void*), GNU mangling - FREE(VG_Z_LIBSTDCXX_SONAME, _ZdaPv, __builtin_vec_delete ); - FREE(SO_SYN_MALLOC, _ZdaPv, __builtin_vec_delete ); - - // operator delete[](void*, unsigned int), C++14, GNU mangling + // operator delete[](void*, unsigned int) #if __SIZEOF_SIZE_T__ == 4 DELETE_SIZED(VG_Z_LIBSTDCXX_SONAME, _ZdaPvj, __builtin_vec_delete ); DELETE_SIZED(SO_SYN_MALLOC, _ZdaPvj, __builtin_vec_delete ); - // operator delete[](void*, unsigned long), C++14, GNU mangling + // operator delete[](void*, unsigned long) #elif __SIZEOF_SIZE_T__ == 8 DELETE_SIZED(VG_Z_LIBSTDCXX_SONAME, _ZdaPvm, __builtin_vec_delete ); DELETE_SIZED(SO_SYN_MALLOC, _ZdaPvm, __builtin_vec_delete ); @@ -1608,7 +1645,6 @@ extern int *___errno (void) __attribute__((weak)); #endif - #if defined(VGO_linux) && !defined(MUSL_LIBC) #define MEMALIGN(soname, fnname) \ @@ -1925,7 +1961,7 @@ extern int *___errno (void) __attribute__((weak)); * alignment is greater than MAX_ALIGN (whatever that is). * Wrapper function that just calls memalign * - * Darwin. Does enforce size bing an integer multiple of + * Darwin. Does enforce size being an integer multiple of * alignment. * */ |
|
From: Paul F. <pa...@so...> - 2023-03-09 07:31:57
|
https://sourceware.org/git/gitweb.cgi?p=valgrind.git;h=294894459a3c02505bbfa47a4f0326faad44632b commit 294894459a3c02505bbfa47a4f0326faad44632b Author: Paul Floyd <pj...@wa...> Date: Thu Mar 9 08:31:12 2023 +0100 regtest: try to fix bad merge of memalign_args expected on ppc64 Diff: --- memcheck/tests/memalign_args.stderr.exp-ppc64 | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/memcheck/tests/memalign_args.stderr.exp-ppc64 b/memcheck/tests/memalign_args.stderr.exp-ppc64 index 2e289e86e7..bc3c0aba46 100644 --- a/memcheck/tests/memalign_args.stderr.exp-ppc64 +++ b/memcheck/tests/memalign_args.stderr.exp-ppc64 @@ -6,6 +6,10 @@ Conditional jump or move depends on uninitialised value(s) at 0x........: memalign (vg_replace_malloc.c:...) by 0x........: main (memalign_args.c:19) +Conditional jump or move depends on uninitialised value(s) + at 0x........: memalign (vg_replace_malloc.c:...) + by 0x........: main (memalign_args.c:19) + Conditional jump or move depends on uninitialised value(s) at 0x........: posix_memalign (vg_replace_malloc.c:...) by 0x........: main (memalign_args.c:23) @@ -28,7 +32,7 @@ Conditional jump or move depends on uninitialised value(s) Conditional jump or move depends on uninitialised value(s) at 0x........: memalign (vg_replace_malloc.c:...) - by 0x........: main (memalign_args.c:23) + by 0x........: main (memalign_args.c:26) Conditional jump or move depends on uninitialised value(s) at 0x........: memalign (vg_replace_malloc.c:...) |
|
From: Paul F. <pa...@so...> - 2023-03-09 07:04:58
|
https://sourceware.org/git/gitweb.cgi?p=valgrind.git;h=e29bf11d87f3cd35ce49418b4e6c7d1e6d480a47 commit e29bf11d87f3cd35ce49418b4e6c7d1e6d480a47 Author: Paul Floyd <pj...@wa...> Date: Thu Mar 9 08:02:19 2023 +0100 regtest: update sized_aligned_new_delete_args expected Don't quite understand how I managed to generate the original expected. Diff: --- memcheck/tests/sized_aligned_new_delete_args.stderr.exp | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/memcheck/tests/sized_aligned_new_delete_args.stderr.exp b/memcheck/tests/sized_aligned_new_delete_args.stderr.exp index 27047ef810..f79314a9f4 100644 --- a/memcheck/tests/sized_aligned_new_delete_args.stderr.exp +++ b/memcheck/tests/sized_aligned_new_delete_args.stderr.exp @@ -6,6 +6,10 @@ Conditional jump or move depends on uninitialised value(s) at 0x........: operator new(unsigned long, std::align_val_t) (vg_replace_malloc.c:...) by 0x........: main (sized_aligned_new_delete_args.cpp:16) +Conditional jump or move depends on uninitialised value(s) + at 0x........: operator delete(void*, std::align_val_t) (vg_replace_malloc.c:...) + by 0x........: main (sized_aligned_new_delete_args.cpp:17) + Conditional jump or move depends on uninitialised value(s) at 0x........: operator new[](unsigned long, std::align_val_t) (vg_replace_malloc.c:...) by 0x........: main (sized_aligned_new_delete_args.cpp:19) |