* [PATCH] elflint: Allow zero p_memsz for PT_RISCV_ATTRIBUTES
@ 2022-08-09 8:29 Andreas Schwab
2022-08-09 17:11 ` Mark Wielaard
0 siblings, 1 reply; 2+ messages in thread
From: Andreas Schwab @ 2022-08-09 8:29 UTC (permalink / raw)
To: elfutils-devel
The RISCV_ATTRIBUTES segment is not meant to be loaded.
Signed-off-by: Andreas Schwab <schwab@suse.de>
---
src/ChangeLog | 5 +++++
src/elflint.c | 5 ++++-
2 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/src/ChangeLog b/src/ChangeLog
index 42ce6640..fbcef29e 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,8 @@
+2022-08-09 Andreas Schwab <schwab@suse.de>
+
+ * elflint.c (check_program_header): Don't complain about p_filesz
+ > p_memsz if p_memsz is zero and p_type is PT_RISCV_ATTRIBUTES.
+
2022-08-01 Mark Wielaard <mark@klomp.org>
* readelf.c (handle_dynamic): Pass start of buffer to memrchr.
diff --git a/src/elflint.c b/src/elflint.c
index d919936f..b0e5415e 100644
--- a/src/elflint.c
+++ b/src/elflint.c
@@ -4731,7 +4731,10 @@ section [%2zu] '%s' must not be executable\n"),
}
if (phdr->p_filesz > phdr->p_memsz
- && (phdr->p_memsz != 0 || phdr->p_type != PT_NOTE))
+ && (phdr->p_memsz != 0
+ || (phdr->p_type != PT_NOTE
+ && !(ehdr->e_machine == EM_RISCV
+ && phdr->p_type == PT_RISCV_ATTRIBUTES))))
ERROR (_("\
program header entry %d: file size greater than memory size\n"),
cnt);
--
2.37.1
--
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."
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