On Tue, Oct 17, 2023 at 07:33:47AM +0900, Masato Asou wrote:
> From: Masato Asou <a...@soum.co.jp>
> Date: Fri, 29 Sep 2023 19:39:12 +0900 (JST)
>
> ping
Sorry for not replying earlier. The locations are reported
correctly now. But there are spurious reports of accesses of a 8 byte
value on each system call. (tested on amd64).
-Otto
==83949== Use of uninitialised value of size 8
==83949== at 0x4A0CEC2: write (sys/w_write.c:28)
==83949== by 0x4A1B322: __sflush (stdio/fflush.c:80)
==83949== by 0x49B21E8: __sfvwrite (stdio/fvwrite.c:188)
==83949== by 0x4A26FED: __sprint (stdio/vfprintf.c:108)
==83949== by 0x4A26FED: __vfprintf (stdio/vfprintf.c:1062)
==83949== by 0x4A23CA5: vfprintf (stdio/vfprintf.c:263)
==83949== by 0x49EDB54: printf (stdio/printf.c:44)
==83949== by 0x109B90: main (m.c:16)
>
> > I have fixed the bug you reported when symbols were not printed.
> >
> > As shown below, if the lower 12 bits of Virtual Address are 0 and File
> > Size is 0, then the a.out symbol will not be printed.
> >
> > $ readelf -l a.out
> > </snip>
> > Program Headers:
> > Type Offset VirtAddr PhysAddr
> > FileSiz MemSiz Flags Align
> > </snip>
> > LOAD 0x0000000000001000 0x0000000000003000 0x0000000000003000
> > 0x0000000000000000 0x0000000000000055 RW 1000
> >
> > From: Otto Moerbeek <o...@drijf.net>
> > Date: Tue, 5 Sep 2023 07:40:18 +0200
> >
> >> On Tue, Sep 05, 2023 at 09:38:40AM +0900, Masato Asou wrote:
> >>
> >>> hi,
> >>>
> >>> I have fixed a bug in Valgrind. The Valgrind could not detect access
> >>> outside the range of malloc.
> >>>
> >>> comments, ok?
> >>
> >> This works much better that before. Thanks for working on this!
> >>
> >> It now detects out of bounds read and writes correctly. A double
> >> free is detected.
> >> Also, the spurious reports for accesses to errno are gone.
> >>
> >> It does not report proper locations though, even if I compile my test
> >> program with -g:
> >>
> >> ==23912== Invalid read of size 1
> >> ==23912== at 0x109B5D: ??? (in ./a.out)
> >> ==23912== by 0x1098D1: ??? (in ./a.out)
> >> ==23912== Address 0x4a42840 is 0 bytes after a block of size 10,240
> >> alloc'd
> >> ==23912== at 0x493A3A9: malloc (vg_replace_malloc.c:435)
> >> ==23912== by 0x109B32: ??? (in ./a.out)
> >> ==23912== by 0x1098D1: ??? (in ./a.out)
> >> ==23912==
> >> 0
> >
> > The a.out symbol is now printed as shown below:
> >
> > $ cat malloctest.c
> > #include <stdlib.h>
> > #include <stdio.h>
> >
> > int
> > main(int argc, char *argv[])
> > {
> > size_t sz = atoi(argv[1]);
> > unsigned char *p = malloc(sz);
> > printf("%p\n", p);
> > p[sz] = 0;
> > printf("%x\n", p[sz]);
> > free(p);
> > free(p);
> > return 0;
> > }
> > $ cc -g malloctest.c
> > $ valgrind ./a.out 128
> > ==21074== Memcheck, a memory error detector
> > ==21074== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
> > ==21074== Using Valgrind-3.21.0 and LibVEX; rerun with -h for copyright info
> > ==21074== Command: ./a.out 128
> > ==21074==
> > ==21074== Use of uninitialised value of size 8
> > ==21074== at 0x49C34CD: write (sys/w_write.c:26)
> > ==21074== by 0x4A150D2: __sflush (stdio/fflush.c:80)
> > ==21074== by 0x49B99C8: __sfvwrite (stdio/fvwrite.c:191)
> > ==21074== by 0x4979E4D: __sprint (stdio/vfprintf.c:108)
> > ==21074== by 0x4979E4D: __vfprintf (stdio/vfprintf.c:1064)
> > ==21074== by 0x4976B05: vfprintf (stdio/vfprintf.c:263)
> > ==21074== by 0x49D6434: printf (stdio/printf.c:44)
> > ==21074== by 0x109B48: main (malloctest.c:9)
> > ==21074==
> > ==21074== Use of uninitialised value of size 8
> > ==21074== at 0x49C34DE: write (sys/w_write.c:26)
> > ==21074== by 0x4A150D2: __sflush (stdio/fflush.c:80)
> > ==21074== by 0x49B99C8: __sfvwrite (stdio/fvwrite.c:191)
> > ==21074== by 0x4979E4D: __sprint (stdio/vfprintf.c:108)
> > ==21074== by 0x4979E4D: __vfprintf (stdio/vfprintf.c:1064)
> > ==21074== by 0x4976B05: vfprintf (stdio/vfprintf.c:263)
> > ==21074== by 0x49D6434: printf (stdio/printf.c:44)
> > ==21074== by 0x109B48: main (malloctest.c:9)
> >
> >> ==23912== Invalid free() / delete / delete[] / realloc()
> >> ==23912== at 0x493C981: free (vg_replace_malloc.c:978)
> >> ==23912== by 0x109B80: ??? (in ./a.out)
> >> ==23912== by 0x1098D1: ??? (in ./a.out)
> >> ==23912== Address 0x4a40040 is 0 bytes inside a block of size 10,240
> >> free'd
> >> ==23912== at 0x493C981: free (vg_replace_malloc.c:978)
> >> ==23912== by 0x109B77: ??? (in ./a.out)
> >> ==23912== by 0x1098D1: ??? (in ./a.out)
> >> ==23912== Block was alloc'd at
> >> ==23912== at 0x493A3A9: malloc (vg_replace_malloc.c:435)
> >> ==23912== by 0x109B32: ??? (in ./a.out)
> >> ==23912== by 0x1098D1: ??? (in ./a.out)
> >>
> >> addr2line -e ./a.out 0x109B80 also does not succeed in translating the
> >> address.
> >
> > Address reported by Valgrind cannot be used for addr2line. Because
> > the address is the address of the area where Valgrind mapped a.out
> > with mmap().
> >
> >
> > The Makefile and patch-coregrind_m_replacemalloc_vg_replace_malloc_c
> > in the following diff are the same as the first reported diff.
> >
> > ok, comments?
> > --
> > ASOU Masato
> >
> > Index: devel/valgrind/Makefile
> > ===================================================================
> > RCS file: /cvs/ports/devel/valgrind/Makefile,v
> > retrieving revision 1.32
> > diff -u -p -r1.32 Makefile
> > --- devel/valgrind/Makefile 21 Sep 2023 09:50:07 -0000 1.32
> > +++ devel/valgrind/Makefile 29 Sep 2023 09:44:46 -0000
> > @@ -5,7 +5,7 @@ CATEGORIES = devel
> >
> > V = 3.21.0
> > DISTNAME = valgrind-${V}
> > -REVISION = 0
> > +REVISION = 1
> > EXTRACT_SUFX = .tar.bz2
> >
> > SITES = https://sourceware.org/pub/valgrind/
> > Index: devel/valgrind/patches/patch-coregrind_m_aspacemgr_aspacemgr_linux_c
> > ===================================================================
> > RCS file:
> > /cvs/ports/devel/valgrind/patches/patch-coregrind_m_aspacemgr_aspacemgr_linux_c,v
> > retrieving revision 1.1
> > diff -u -p -r1.1 patch-coregrind_m_aspacemgr_aspacemgr_linux_c
> > --- devel/valgrind/patches/patch-coregrind_m_aspacemgr_aspacemgr_linux_c
> > 18 Jul 2023 06:17:15 -0000 1.1
> > +++ devel/valgrind/patches/patch-coregrind_m_aspacemgr_aspacemgr_linux_c
> > 29 Sep 2023 09:44:46 -0000
> > @@ -18,7 +18,41 @@
> > = (Addr) 0x04000000; // 64M
> > #else
> > #endif
> > -@@ -1550,7 +1550,7 @@
> > +@@ -685,6 +685,7 @@
> > + break;
> > +
> > + case SkFileC: case SkFileV:
> > ++#if !defined(VGO_openbsd)
> > + if (s1->hasR == s2->hasR
> > + && s1->hasW == s2->hasW && s1->hasX == s2->hasX
> > + && s1->dev == s2->dev && s1->ino == s2->ino
> > +@@ -695,6 +696,25 @@
> > + ML_(am_dec_refcount)(s1->fnIdx);
> > + return True;
> > + }
> > ++ // The following is an excerpt from `readelf -l a.out'.
> > ++ //
> > ++ // LOAD 0x0000000000000e20 0x0000000000002e20
> > 0x0000000000002e20
> > ++ // 0x00000000000001e0 0x00000000000001e0 RW 1000
> > ++ // LOAD 0x0000000000001000 0x0000000000003000
> > 0x0000000000003000
> > ++ // 0x0000000000000000 0x0000000000000055 RW 1000
> > ++ //
> > ++ // The above two areas are determined to be contiguous area in
> > the
> > ++ // above `if' statement, and they are merged by
> > preen_nsegments().
> > ++ // Then, di->fsm.rw_map_count in the following `if' statement in
> > ++ // VG_(di_notify_mmap)() would be 1, which does not match
> > ++ // rw_load_count, and di_notify_ACHIEVE_ACCEPT_STATE() is not
> > called.
> > ++ // In the above program header, rw_load_count is 2.
> > ++ //
> > ++ // if (di->fsm.have_rx_map &&
> > ++ // rw_load_count >= 1 &&
> > ++ // di->fsm.rw_map_count == rw_load_count) {
> > ++ // return di_notify_ACHIEVE_ACCEPT_STATE ( di );
> > ++#endif
> > + break;
> > +
> > + case SkShmC:
> > +@@ -1550,7 +1570,7 @@
> > if (filename || (dev != 0 && ino != 0))
> > seg.kind = SkFileV;
> >
> > @@ -27,7 +61,7 @@
> > // GrP fixme no dev/ino on darwin
> > if (offset != 0)
> > seg.kind = SkFileV;
> > -@@ -2697,7 +2697,11 @@
> > +@@ -2697,7 +2717,11 @@
> > a client request to call the outer VG_(am_get_advisory). */
> > sres = VG_(am_do_mmap_NO_NOTIFY)(
> > advised, length,
> > @@ -39,7 +73,7 @@
> > VKI_MAP_FIXED|VKI_MAP_PRIVATE|VKI_MAP_ANONYMOUS,
> > VM_TAG_VALGRIND, 0
> > );
> > -@@ -2742,6 +2746,54 @@
> > +@@ -2742,6 +2766,54 @@
> > return sres;
> > }
> >
> > @@ -94,7 +128,7 @@
> > /* Really just a wrapper around VG_(am_mmap_anon_float_valgrind). */
> >
> > SysRes VG_(am_shadow_alloc)(SizeT size)
> > -@@ -3896,10 +3948,14 @@
> > +@@ -3896,10 +3968,14 @@
> > /*------END-procmaps-parser-for-Darwin---------------------------*/
> >
> > /*------BEGIN-procmaps-parser-for-Freebsd------------------------*/
> > @@ -111,7 +145,7 @@
> >
> > /* static ... to keep it out of the stack frame. */
> > static char procmap_buf[M_PROCMAP_BUF];
> > -@@ -3911,6 +3967,7 @@
> > +@@ -3911,6 +3987,7 @@
> > void (*record_gap)( Addr addr, SizeT len )
> > )
> > {
> > @@ -119,7 +153,7 @@
> > Addr start, endPlusOne, gapStart;
> > char* filename;
> > char *p;
> > -@@ -3968,6 +4025,57 @@
> > +@@ -3968,6 +4045,57 @@
> >
> > if (record_gap && gapStart < Addr_MAX)
> > (*record_gap) ( gapStart, Addr_MAX - gapStart + 1 );
> > Index:
> > devel/valgrind/patches/patch-coregrind_m_replacemalloc_vg_replace_malloc_c
> > ===================================================================
> > RCS file:
> > devel/valgrind/patches/patch-coregrind_m_replacemalloc_vg_replace_malloc_c
> > diff -N
> > devel/valgrind/patches/patch-coregrind_m_replacemalloc_vg_replace_malloc_c
> > --- /dev/null 1 Jan 1970 00:00:00 -0000
> > +++
> > devel/valgrind/patches/patch-coregrind_m_replacemalloc_vg_replace_malloc_c
> > 29 Sep 2023 09:44:46 -0000
> > @@ -0,0 +1,263 @@
> > +--- coregrind/m_replacemalloc/vg_replace_malloc.c.orig
> > ++++ coregrind/m_replacemalloc/vg_replace_malloc.c
> > +@@ -222,7 +222,7 @@
> > + #define SET_ERRNO_ENOMEM if (__errno_location) \
> > + (*__errno_location ()) = VKI_ENOMEM;
> > + #define SET_ERRNO_EINVAL {}
> > +-#elif defined(VGO_freebsd)
> > ++#elif defined(VGO_freebsd) || defined(VGO_openbsd)
> > + extern int *__error (void) __attribute__((weak));
> > + #define SET_ERRNO_ENOMEM if (__error) \
> > + (*__error ()) = VKI_ENOMEM;
> > +@@ -430,7 +430,7 @@
> > + ALLOC_or_NULL(VG_Z_LIBC_SONAME, malloc, malloc);
> > + ALLOC_or_NULL(SO_SYN_MALLOC, malloc, malloc);
> > +
> > +-#elif defined(VGO_freebsd)
> > ++#elif defined(VGO_freebsd) || defined(VGO_openbsd)
> > + ALLOC_or_NULL(VG_Z_LIBC_SONAME, malloc, malloc);
> > + ALLOC_or_NULL(SO_SYN_MALLOC, malloc, malloc);
> > +
> > +@@ -472,7 +472,7 @@
> > + ALLOC_or_BOMB(SO_SYN_MALLOC, _Znwm, __builtin_new);
> > + #endif
> > +
> > +-#elif defined(VGO_freebsd)
> > ++#elif defined(VGO_freebsd) || defined(VGO_openbsd)
> > + // operator new(unsigned int)
> > + #if VG_WORDSIZE == 4
> > + ALLOC_or_BOMB(VG_Z_LIBSTDCXX_SONAME, _Znwj, __builtin_new);
> > +@@ -532,7 +532,7 @@
> > + ALLOC_or_BOMB_ALIGNED(SO_SYN_MALLOC, _ZnwmSt11align_val_t,
> > __builtin_new_aligned);
> > + #endif
> > +
> > +-#elif defined(VGO_freebsd)
> > ++#elif defined(VGO_freebsd) || defined(VGO_openbsd)
> > + // operator new(unsigned int)
> > + #if VG_WORDSIZE == 4
> > + ALLOC_or_BOMB_ALIGNED(VG_Z_LIBSTDCXX_SONAME, _ZnwjSt11align_val_t,
> > __builtin_new_aligned);
> > +@@ -592,7 +592,7 @@
> > + ALLOC_or_NULL(SO_SYN_MALLOC, _ZnwmRKSt9nothrow_t,
> > __builtin_new);
> > + #endif
> > +
> > +-#elif defined(VGO_freebsd)
> > ++#elif defined(VGO_freebsd) || defined(VGO_openbsd)
> > + // operator new(unsigned, std::nothrow_t const&)
> > + #if VG_WORDSIZE == 4
> > + ALLOC_or_NULL(VG_Z_LIBSTDCXX_SONAME, _ZnwjRKSt9nothrow_t,
> > __builtin_new);
> > +@@ -652,7 +652,7 @@
> > + ALLOC_or_NULL_ALIGNED(SO_SYN_MALLOC,
> > _ZnwmSt11align_val_tRKSt9nothrow_t, __builtin_new_aligned);
> > + #endif
> > +
> > +-#elif defined(VGO_freebsd)
> > ++#elif defined(VGO_freebsd) || defined(VGO_openbsd)
> > + // operator new(unsigned int, std::align_val_t, std::nothrow_t const&)
> > + #if VG_WORDSIZE == 4
> > + ALLOC_or_NULL_ALIGNED(VG_Z_LIBSTDCXX_SONAME,
> > _ZnwjSt11align_val_tRKSt9nothrow_t, __builtin_new_aligned);
> > +@@ -714,7 +714,7 @@
> > + ALLOC_or_BOMB(SO_SYN_MALLOC, _Znam,
> > __builtin_vec_new );
> > + #endif
> > +
> > +-#elif defined(VGO_freebsd)
> > ++#elif defined(VGO_freebsd) || defined(VGO_openbsd)
> > + // operator new[](unsigned int)
> > + #if VG_WORDSIZE == 4
> > + ALLOC_or_BOMB(VG_Z_LIBSTDCXX_SONAME, _Znaj,
> > __builtin_vec_new );
> > +@@ -774,7 +774,7 @@
> > + ALLOC_or_BOMB_ALIGNED(SO_SYN_MALLOC, _ZnamSt11align_val_t,
> > __builtin_vec_new_aligned );
> > + #endif
> > +
> > +-#elif defined(VGO_freebsd)
> > ++#elif defined(VGO_freebsd) || defined(VGO_openbsd)
> > + // operator new[](unsigned int, std::align_val_t)
> > + #if VG_WORDSIZE == 4
> > + ALLOC_or_BOMB_ALIGNED(VG_Z_LIBSTDCXX_SONAME, _ZnajSt11align_val_t,
> > __builtin_vec_new_aligned );
> > +@@ -835,7 +835,7 @@
> > + ALLOC_or_NULL(SO_SYN_MALLOC, _ZnamRKSt9nothrow_t,
> > __builtin_vec_new );
> > + #endif
> > +
> > +-#elif defined(VGO_freebsd)
> > ++#elif defined(VGO_freebsd) || defined(VGO_openbsd)
> > + // operator new[](unsigned, std::nothrow_t const&)
> > + #if VG_WORDSIZE == 4
> > + ALLOC_or_NULL(VG_Z_LIBSTDCXX_SONAME, _ZnajRKSt9nothrow_t,
> > __builtin_vec_new );
> > +@@ -895,7 +895,7 @@
> > + ALLOC_or_NULL_ALIGNED(SO_SYN_MALLOC,
> > _ZnamSt11align_val_tRKSt9nothrow_t, __builtin_vec_new_aligned );
> > + #endif
> > +
> > +-#elif defined(VGO_freebsd)
> > ++#elif defined(VGO_freebsd) || defined(VGO_openbsd)
> > + // operator new[](unsigned int, std::align_val_t, std::nothrow_t const&)
> > + #if VG_WORDSIZE == 4
> > + ALLOC_or_NULL_ALIGNED(VG_Z_LIBSTDCXX_SONAME,
> > _ZnajSt11align_val_tRKSt9nothrow_t, __builtin_vec_new_aligned );
> > +@@ -973,7 +973,7 @@
> > + FREE(VG_Z_LIBC_SONAME, free, free );
> > + FREE(SO_SYN_MALLOC, free, free );
> > +
> > +-#elif defined(VGO_freebsd)
> > ++#elif defined(VGO_freebsd) || defined(VGO_openbsd)
> > + FREE(VG_Z_LIBC_SONAME, free, free );
> > + FREE(SO_SYN_MALLOC, free, free );
> > +
> > +@@ -1024,7 +1024,7 @@
> > + FREE(VG_Z_LIBC_SONAME, _ZdlPv, __builtin_delete );
> > + FREE(SO_SYN_MALLOC, _ZdlPv, __builtin_delete );
> > +
> > +-#elif defined(VGO_freebsd)
> > ++#elif defined(VGO_freebsd) || defined(VGO_openbsd)
> > + FREE(VG_Z_LIBSTDCXX_SONAME, _ZdlPv, __builtin_delete );
> > + FREE(VG_Z_LIBCXX_SONAME, _ZdlPv, __builtin_delete );
> > + FREE(SO_SYN_MALLOC, _ZdlPv, __builtin_delete );
> > +@@ -1072,7 +1072,7 @@
> > + DELETE_SIZED(SO_SYN_MALLOC, _ZdlPvm,
> > __builtin_delete );
> > + #endif
> > +
> > +-#elif defined(VGO_freebsd)
> > ++#elif defined(VGO_freebsd) || defined(VGO_openbsd)
> > + // operator delete(void*, unsigned int)
> > + #if __SIZEOF_SIZE_T__ == 4
> > + DELETE_SIZED(VG_Z_LIBSTDCXX_SONAME, _ZdlPvj,
> > __builtin_delete );
> > +@@ -1160,7 +1160,7 @@
> > + DELETE_SIZED_ALIGNED(SO_SYN_MALLOC, _ZdlPvmSt11align_val_t,
> > __builtin_delete_aligned );
> > + #endif
> > +
> > +-#elif defined(VGO_freebsd)
> > ++#elif defined(VGO_freebsd) || defined(VGO_openbsd)
> > + // operator delete(void*, std::align_val_t)
> > + DELETE_ALIGNED(VG_Z_LIBSTDCXX_SONAME, _ZdlPvSt11align_val_t,
> > __builtin_delete_aligned );
> > + DELETE_ALIGNED(VG_Z_LIBCXX_SONAME, _ZdlPvSt11align_val_t,
> > __builtin_delete_aligned );
> > +@@ -1224,7 +1224,7 @@
> > + FREE(VG_Z_LIBC_SONAME, _ZdlPvRKSt9nothrow_t, __builtin_delete );
> > + FREE(SO_SYN_MALLOC, _ZdlPvRKSt9nothrow_t, __builtin_delete );
> > +
> > +-#elif defined(VGO_freebsd)
> > ++#elif defined(VGO_freebsd) || defined(VGO_openbsd)
> > + // operator delete(void*, std::nothrow_t const&)
> > + FREE(VG_Z_LIBSTDCXX_SONAME, _ZdlPvRKSt9nothrow_t, __builtin_delete );
> > + FREE(VG_Z_LIBCXX_SONAME, _ZdlPvRKSt9nothrow_t, __builtin_delete );
> > +@@ -1254,7 +1254,7 @@
> > +
> > + // no sized version of this operator
> > +
> > +-#elif defined(VGO_freebsd)
> > ++#elif defined(VGO_freebsd) || defined(VGO_openbsd)
> > + // operator delete(void*, std::align_val_t, std::nothrow_t const&)
> > + DELETE_ALIGNED(VG_Z_LIBSTDCXX_SONAME,
> > _ZdlPvSt11align_val_tRKSt9nothrow_t, __builtin_delete_aligned );
> > + DELETE_ALIGNED(VG_Z_LIBCXX_SONAME,
> > _ZdlPvSt11align_val_tRKSt9nothrow_t, __builtin_delete_aligned );
> > +@@ -1288,7 +1288,7 @@
> > + FREE(VG_Z_LIBC_SONAME, _ZdaPv, __builtin_vec_delete
> > );
> > + FREE(SO_SYN_MALLOC, _ZdaPv, __builtin_vec_delete
> > );
> > +
> > +-#elif defined(VGO_freebsd)
> > ++#elif defined(VGO_freebsd) || defined(VGO_openbsd)
> > + // operator delete[](void*)
> > + FREE(VG_Z_LIBSTDCXX_SONAME, _ZdaPv, __builtin_vec_delete
> > );
> > + FREE(VG_Z_LIBCXX_SONAME, _ZdaPv, __builtin_vec_delete
> > );
> > +@@ -1323,7 +1323,7 @@
> > + DELETE_SIZED(SO_SYN_MALLOC, _ZdaPvm,
> > __builtin_vec_delete );
> > + #endif
> > +
> > +-#elif defined(VGO_freebsd)
> > ++#elif defined(VGO_freebsd) || defined(VGO_openbsd)
> > + // operator delete[](void*, unsigned int)
> > + #if __SIZEOF_SIZE_T__ == 4
> > + DELETE_SIZED(VG_Z_LIBSTDCXX_SONAME, _ZdaPvj,
> > __builtin_vec_delete );
> > +@@ -1383,7 +1383,7 @@
> > + DELETE_SIZED_ALIGNED(SO_SYN_MALLOC, _ZdaPvmSt11align_val_t,
> > __builtin_vec_delete_aligned );
> > + #endif
> > +
> > +-#elif defined(VGO_freebsd)
> > ++#elif defined(VGO_freebsd) || defined(VGO_openbsd)
> > + // operator delete[](void*, std::align_val_t)
> > + DELETE_ALIGNED(VG_Z_LIBSTDCXX_SONAME, _ZdaPvSt11align_val_t,
> > __builtin_vec_delete_aligned );
> > + DELETE_ALIGNED(VG_Z_LIBCXX_SONAME, _ZdaPvSt11align_val_t,
> > __builtin_vec_delete_aligned );
> > +@@ -1447,7 +1447,7 @@
> > + FREE(VG_Z_LIBC_SONAME, _ZdaPvRKSt9nothrow_t, __builtin_vec_delete
> > );
> > + FREE(SO_SYN_MALLOC, _ZdaPvRKSt9nothrow_t, __builtin_vec_delete
> > );
> > +
> > +-#elif defined(VGO_freebsd)
> > ++#elif defined(VGO_freebsd) || defined(VGO_openbsd)
> > + // operator delete[](void*, std::nothrow_t const&)
> > + FREE(VG_Z_LIBSTDCXX_SONAME, _ZdaPvRKSt9nothrow_t, __builtin_vec_delete
> > );
> > + FREE(VG_Z_LIBCXX_SONAME, _ZdaPvRKSt9nothrow_t, __builtin_vec_delete
> > );
> > +@@ -1477,7 +1477,7 @@
> > +
> > + // no sized version of this operator
> > +
> > +-#elif defined(VGO_freebsd)
> > ++#elif defined(VGO_freebsd) || defined(VGO_openbsd)
> > + // operator delete[](void*, std::align_val_t, std::nothrow_t const&)
> > + DELETE_ALIGNED(VG_Z_LIBSTDCXX_SONAME,
> > _ZdaPvSt11align_val_tRKSt9nothrow_t, __builtin_vec_delete_aligned );
> > + DELETE_ALIGNED(VG_Z_LIBCXX_SONAME,
> > _ZdaPvSt11align_val_tRKSt9nothrow_t, __builtin_vec_delete_aligned );
> > +@@ -1553,7 +1553,7 @@
> > + CALLOC(VG_Z_LIBC_SONAME, calloc);
> > + CALLOC(SO_SYN_MALLOC, calloc);
> > +
> > +-#elif defined(VGO_freebsd)
> > ++#elif defined(VGO_freebsd) || defined(VGO_openbsd)
> > + CALLOC(VG_Z_LIBC_SONAME, calloc);
> > + CALLOC(SO_SYN_MALLOC, calloc);
> > +
> > +@@ -1648,7 +1648,7 @@
> > + REALLOC(VG_Z_LIBC_SONAME, realloc);
> > + REALLOC(SO_SYN_MALLOC, realloc);
> > +
> > +-#elif defined(VGO_freebsd)
> > ++#elif defined(VGO_freebsd) || defined(VGO_openbsd)
> > + REALLOC(VG_Z_LIBC_SONAME, realloc);
> > + REALLOC(SO_SYN_MALLOC, realloc);
> > + REALLOCF(VG_Z_LIBC_SONAME, reallocf);
> > +@@ -1734,7 +1734,7 @@
> > + return v; \
> > + }
> > +
> > +-#if defined(VGO_freebsd)
> > ++#if defined(VGO_freebsd) || defined(VGO_openbsd)
> > + #define VG_MEMALIGN_MAKE_SIZE_MULTIPLE_ALIGN 1
> > + #else
> > + #define VG_MEMALIGN_MAKE_SIZE_MULTIPLE_ALIGN 0
> > +@@ -1834,7 +1834,7 @@
> > + MEMALIGN(VG_Z_LIBC_SONAME, memalign);
> > + MEMALIGN(SO_SYN_MALLOC, memalign);
> > +
> > +-#elif defined(VGO_freebsd)
> > ++#elif defined(VGO_freebsd) || defined(VGO_openbsd)
> > + MEMALIGN(VG_Z_LIBC_SONAME, memalign);
> > + MEMALIGN(SO_SYN_MALLOC, memalign);
> > +
> > +@@ -1890,7 +1890,7 @@
> > + VALLOC(VG_Z_LIBC_SONAME, valloc);
> > + VALLOC(SO_SYN_MALLOC, valloc);
> > +
> > +-#elif defined(VGO_freebsd)
> > ++#elif defined(VGO_freebsd) || defined(VGO_openbsd)
> > + VALLOC(VG_Z_LIBC_SONAME, valloc);
> > + VALLOC(SO_SYN_MALLOC, valloc);
> > +
> > +@@ -2031,7 +2031,7 @@
> > + POSIX_MEMALIGN(VG_Z_LIBC_SONAME, posix_memalign);
> > + POSIX_MEMALIGN(SO_SYN_MALLOC, posix_memalign);
> > +
> > +-#elif defined(VGO_freebsd)
> > ++#elif defined(VGO_freebsd) || defined(VGO_openbsd)
> > + POSIX_MEMALIGN(VG_Z_LIBC_SONAME, posix_memalign);
> > + POSIX_MEMALIGN(SO_SYN_MALLOC, posix_memalign);
> > +
> > +@@ -2176,7 +2176,7 @@
> > + ALIGNED_ALLOC(VG_Z_LIBC_SONAME, aligned_alloc);
> > + ALIGNED_ALLOC(SO_SYN_MALLOC, aligned_alloc);
> > +
> > +-#elif defined(VGO_freebsd)
> > ++#elif defined(VGO_freebsd) || defined(VGO_openbsd)
> > + ALIGNED_ALLOC(G_Z_LIBC_SONAME, aligned_alloc);
> > + ALIGNED_ALLOC(SO_SYN_MALLOC, aligned_alloc);
> > +
> > +@@ -2220,7 +2220,7 @@
> > + MALLOC_USABLE_SIZE(SO_SYN_MALLOC, dlmalloc_usable_size);
> > + # endif
> > +
> > +-#elif defined(VGO_freebsd)
> > ++#elif defined(VGO_freebsd) || defined(VGO_openbsd)
> > + MALLOC_USABLE_SIZE(VG_Z_LIBC_SONAME, malloc_usable_size);
> > + MALLOC_USABLE_SIZE(SO_SYN_MALLOC, malloc_usable_size);
> > +
> > Index: devel/valgrind/patches/patch-coregrind_m_ume_elf_c
> > ===================================================================
> > RCS file: /cvs/ports/devel/valgrind/patches/patch-coregrind_m_ume_elf_c,v
> > retrieving revision 1.3
> > diff -u -p -r1.3 patch-coregrind_m_ume_elf_c
> > --- devel/valgrind/patches/patch-coregrind_m_ume_elf_c 18 Jul 2023
> > 06:17:15 -0000 1.3
> > +++ devel/valgrind/patches/patch-coregrind_m_ume_elf_c 29 Sep 2023
> > 09:44:46 -0000
> > @@ -71,8 +71,21 @@
> > for (i = 0; i < e->e.e_phnum; i++) {
> > ESZ(Phdr) *ph = &e->p[i];
> > ESZ(Addr) addr, bss, brkaddr;
> > -@@ -437,6 +476,11 @@
> > +@@ -435,8 +474,24 @@
> > + filesz = ph->p_filesz;
> > + bss = addr+filesz;
> > memsz = ph->p_memsz;
> > ++#if defined(VGO_openbsd)
> > ++ // On OpenBSD, p_filesz of the BSS area is set to 0. Also, if the
> > lower
> > ++ // 12 bits of addr is 0, bss and addr have the same value.
> > Therefore,
> > ++ // VG_PGROUNDUP(bss)-VG_PGROUNDDN(addr) = 0, the following
> > ++ // `if (VG_PGROUNDUP(bss)-VG_PGROUNDDN(addr)' statement becomes
> > false,
> > ++ // and VG_(am_mmap_file_fixed_client)() is not called. Additionally,
> > ++ // di_notify_ACHIEVE_ACCEPT_STATE() is not called and the
> > first_epoch
> > ++ // variable in DebugInfo is not set to a valid value.
> > ++ if ((addr & 0xfff) == 0 && filesz == 0)
> > ++ bss += memsz;
> > ++#endif
> > brkaddr = addr+memsz;
> >
> > +#if defined(VGO_openbsd)
> > @@ -83,7 +96,7 @@
> > // Tom says: In the following, do what the Linux kernel does and
> > only
> > // map the pages that are required instead of rounding everything to
> > // the specified alignment (ph->p_align). (AMD64 doesn't work if
> > you
> > -@@ -460,6 +504,7 @@
> > +@@ -460,6 +515,7 @@
> > if (memsz > filesz) {
> > UInt bytes;
> >
> > @@ -91,7 +104,7 @@
> > bytes = VG_PGROUNDUP(brkaddr)-VG_PGROUNDUP(bss);
> > if (bytes > 0) {
> > if (0) VG_(debugLog)(0,"ume","mmap_anon_fixed_client #2\n");
> > -@@ -478,6 +523,42 @@
> > +@@ -478,6 +534,42 @@
> > bytes = VKI_PAGE_SIZE - bytes;
> > VG_(memset)((void *)bss, 0, bytes);
> > }
> > @@ -134,7 +147,7 @@
> > }
> > }
> >
> > -@@ -879,7 +960,7 @@
> > +@@ -879,7 +971,7 @@
> > return 0;
> > }
> >
> >
