From a7ecf2467f953b632713f38ab8104596755bca8c Mon Sep 17 00:00:00 2001 From: John Donnelly Date: Wed, 12 May 2021 14:48:03 -0700 Subject: [PATCH 01/16] arm64: Add lowercase tcr_el1_t1sz Commit 1c45cea "arm64: Change tcr_el1_t1sz variable name to TCR_EL1_T1SZ", renamed the variable to upper case, but there are kernels in existence that still have the lower case name, which breaks crash backwards compatibility. Resolves: https://github.com/crash-utility/crash/pull/82 Signed-off-by: John Donnelly Signed-off-by: Kazuhito Hagio Signed-off-by: Lianbo Jiang --- arm64.c | 3 ++- netdump.c | 3 ++- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/arm64.c b/arm64.c index 4787fa61e3e5..8934961b109d 100644 --- a/arm64.c +++ b/arm64.c @@ -3936,7 +3936,8 @@ arm64_calc_VA_BITS(void) } else if (ACTIVE()) error(FATAL, "cannot determine VA_BITS_ACTUAL: please use /proc/kcore\n"); else { - if ((string = pc->read_vmcoreinfo("NUMBER(TCR_EL1_T1SZ)"))) { + if ((string = pc->read_vmcoreinfo("NUMBER(TCR_EL1_T1SZ)")) || + (string = pc->read_vmcoreinfo("NUMBER(tcr_el1_t1sz)"))) { /* See ARMv8 ARM for the description of * TCR_EL1.T1SZ and how it can be used * to calculate the vabits_actual diff --git a/netdump.c b/netdump.c index c1c9cbfaed94..aaea945aaca7 100644 --- a/netdump.c +++ b/netdump.c @@ -1921,7 +1921,8 @@ vmcoreinfo_read_string(const char *key) sprintf(value, "%ld", nd->arch_data2 & 0xffffffff); return value; } - if (STREQ(key, "NUMBER(TCR_EL1_T1SZ)") && nd->arch_data2) { + if ((STREQ(key, "NUMBER(TCR_EL1_T1SZ)") || + STREQ(key, "NUMBER(tcr_el1_t1sz)")) && nd->arch_data2) { value = calloc(VADDR_PRLEN+1, sizeof(char)); sprintf(value, "%lld", ((ulonglong)nd->arch_data2 >> 32) & 0xffffffff); pc->read_vmcoreinfo = no_vmcoreinfo; -- 2.30.2