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From: Mark W. <ma...@so...> - 2020-12-01 14:01:09
|
https://sourceware.org/git/gitweb.cgi?p=valgrind.git;h=74b74174d572fee4015b8f4e326db3cd949bcdc3 commit 74b74174d572fee4015b8f4e326db3cd949bcdc3 Author: Mark Wielaard <ma...@kl...> Date: Tue Dec 1 14:57:39 2020 +0100 lmw, lswi and related PowerPC insns aren't allowed on ppc64le Newer binutils produce an error when the assembly contains lmw, stmw, lswi, lswx, stswi, or stswx instructions in little-endian mode. Only build and run the lsw and ldst_multiple testcases on ppc64[be]. https://bugs.kde.org/show_bug.cgi?id=427870 Diff: --- NEWS | 1 + none/tests/ppc64/Makefile.am | 9 +++++++-- none/tests/ppc64/ldst_multiple.vgtest | 1 + 3 files changed, 9 insertions(+), 2 deletions(-) diff --git a/NEWS b/NEWS index c26449a3e2..c9dfd73155 100644 --- a/NEWS +++ b/NEWS @@ -58,6 +58,7 @@ n-i-bz helgrind: If hg_cli__realloc fails, return NULL. 427400 PPC ISA 3.1 support is missing, part 4 427401 PPC ISA 3.1 support is missing, part 5 384729 __libc_freeres inhibits cross-platform valgrind +427870 lmw, lswi and related PowerPC insns aren't allowed on ppc64le 427404 PPC ISA 3.1 support is missing, part 6 429692 unhandled ppc64le-linux syscall: 147 (getsid) diff --git a/none/tests/ppc64/Makefile.am b/none/tests/ppc64/Makefile.am index a267b727a8..cd5dc91a46 100644 --- a/none/tests/ppc64/Makefile.am +++ b/none/tests/ppc64/Makefile.am @@ -59,7 +59,7 @@ EXTRA_DIST = \ check_PROGRAMS = \ allexec \ - lsw jm-insns round \ + jm-insns round \ test_isa_2_06_part1 test_isa_2_06_part2 test_isa_2_06_part3 \ test_dfp1 test_dfp2 test_dfp3 test_dfp4 test_dfp5 \ test_isa_2_07_part1 test_isa_2_07_part2 \ @@ -67,10 +67,15 @@ check_PROGRAMS = \ test_isa_3_1_RT test_isa_3_1_XT test_isa_3_1_VRT \ test_isa_3_1_Misc test_isa_3_1_AT \ subnormal_test \ - test_tm test_touch_tm ldst_multiple data-cache-instructions \ + test_tm test_touch_tm data-cache-instructions \ power6_mf_gpr std_reg_imm \ twi_tdi tw_td power6_bcmp +# lmw, stmw, lswi, lswx, stswi, stswx compile (and run) only on big endian. +if VGCONF_PLATFORMS_INCLUDE_PPC64BE_LINUX +check_PROGRAMS += lsw ldst_multiple +endif + AM_CFLAGS += @FLAG_M64@ AM_CXXFLAGS += @FLAG_M64@ AM_CCASFLAGS += @FLAG_M64@ diff --git a/none/tests/ppc64/ldst_multiple.vgtest b/none/tests/ppc64/ldst_multiple.vgtest index 87e668e09f..22dd46c993 100644 --- a/none/tests/ppc64/ldst_multiple.vgtest +++ b/none/tests/ppc64/ldst_multiple.vgtest @@ -1 +1,2 @@ +prereq: ../../../tests/is_ppc64_BE prog: ldst_multiple |
|
From: Nicholas N. <nj...@so...> - 2020-12-01 05:56:27
|
https://sourceware.org/git/gitweb.cgi?p=valgrind.git;h=48ba17f87d07842f4b8ec254f2d2b4e060e6fe51 commit 48ba17f87d07842f4b8ec254f2d2b4e060e6fe51 Author: Nicholas Nethercote <nne...@mo...> Date: Tue Dec 1 13:46:25 2020 +1100 Fix an obscure problem with peak finding. Currently, if there are multiple equal global peaks, `intro_Block` and `resize_Block` record the first one while `check_for_peak` records the last one. This could lead to inconsistent output, though it's unlikely in practice. This commit fixes things so that all functions record the last peak. Diff: --- dhat/dh_main.c | 20 ++++++++++++++++---- 1 file changed, 16 insertions(+), 4 deletions(-) diff --git a/dhat/dh_main.c b/dhat/dh_main.c index 565b0ae2d8..5d1e89b592 100644 --- a/dhat/dh_main.c +++ b/dhat/dh_main.c @@ -287,7 +287,10 @@ static void intro_Block ( Block* bk ) g_curr_blocks++; g_curr_bytes += bk->req_szB; - if (g_curr_bytes > g_max_bytes) { + + // The use of `>=` rather than `>` means that if there are multiple equal + // peaks we record the latest one, like `check_for_peak` does. + if (g_curr_bytes >= g_max_bytes) { g_max_blocks = g_curr_blocks; g_max_bytes = g_curr_bytes; g_max_instrs = g_curr_instrs; @@ -300,7 +303,10 @@ static void intro_Block ( Block* bk ) api->curr_blocks++; api->curr_bytes += bk->req_szB; - if (api->curr_bytes > api->max_bytes) { + + // The use of `>=` rather than `>` means that if there are multiple equal + // peaks we record the latest one, like `check_for_peak` does. + if (api->curr_bytes >= api->max_bytes) { api->max_blocks = api->curr_blocks; api->max_bytes = api->curr_bytes; } @@ -469,7 +475,10 @@ static void resize_Block(ExeContext* ec, SizeT old_req_szB, SizeT new_req_szB) g_curr_blocks += 0; // unchanged g_curr_bytes += delta; - if (g_curr_bytes > g_max_bytes) { + + // The use of `>=` rather than `>` means that if there are multiple equal + // peaks we record the latest one, like `check_for_peak` does. + if (g_curr_bytes >= g_max_bytes) { g_max_blocks = g_curr_blocks; g_max_bytes = g_curr_bytes; g_max_instrs = g_curr_instrs; @@ -482,7 +491,10 @@ static void resize_Block(ExeContext* ec, SizeT old_req_szB, SizeT new_req_szB) api->curr_blocks += 0; // unchanged api->curr_bytes += delta; - if (api->curr_bytes > api->max_bytes) { + + // The use of `>=` rather than `>` means that if there are multiple equal + // peaks we record the latest one, like `check_for_peak` does. + if (api->curr_bytes >= api->max_bytes) { api->max_blocks = api->curr_blocks; api->max_bytes = api->curr_bytes; } |