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From f4ab6897a716d3f3959f6cb8cab27744eaecb5a6 Mon Sep 17 00:00:00 2001
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Message-Id: <f4ab6897a716d3f3959f6cb8cab27744eaecb5a6.1489471500.git.panand@redhat.com>
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In-Reply-To: <4b0bed3523a5f6c2c428d9dab3d27d4572207d52.1489471500.git.panand@redhat.com>
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References: <4b0bed3523a5f6c2c428d9dab3d27d4572207d52.1489471500.git.panand@redhat.com>
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From: Pratyush Anand <panand@redhat.com>
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Date: Thu, 2 Mar 2017 17:37:16 +0900
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Subject: [PATCH 4/7] [PATCH v3 4/7] elf_info: kcore: check for invalid
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physical address
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kcore passes correct phys_start for direct mapped region and an invalid
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value (-1) for all other regions after the kernel commit
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464920104bf7(/proc/kcore: update physical address for kcore ram and
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text). arch specific function is_phys_addr() accepts only virt_start.
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Therefore, check for valid phys_start in get_kcore_dump_loads().
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Signed-off-by: Pratyush Anand <panand@redhat.com>
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---
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elf_info.c | 6 ++++--
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1 file changed, 4 insertions(+), 2 deletions(-)
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diff --git a/makedumpfile-1.6.1/elf_info.c b/makedumpfile-1.6.1/elf_info.c
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index 65ff333cf33a..c5743b3cab28 100644
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--- a/makedumpfile-1.6.1/elf_info.c
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+++ b/makedumpfile-1.6.1/elf_info.c
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@@ -881,7 +881,8 @@ int get_kcore_dump_loads(void)
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for (i = 0; i < num_pt_loads; ++i) {
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struct pt_load_segment *p = &pt_loads[i];
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- if (!is_phys_addr(p->virt_start))
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+ if (p->phys_start == NOT_PADDR
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+ || !is_phys_addr(p->virt_start))
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continue;
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loads++;
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}
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@@ -901,7 +902,8 @@ int get_kcore_dump_loads(void)
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for (i = 0, j = 0; i < num_pt_loads; ++i) {
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struct pt_load_segment *p = &pt_loads[i];
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- if (!is_phys_addr(p->virt_start))
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+ if (p->phys_start == NOT_PADDR
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+ || !is_phys_addr(p->virt_start))
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continue;
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if (j >= loads)
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return FALSE;
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--
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2.9.3
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