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uclibc: ldso/arc: fix LD_DEBUG segv when printing R_ARC_NONE

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Dynamic linker used to segfault on attempt to print info
about R_ARC_NONE reloaction.

The fix is already in upstream master [1],
should be removed on uClibc version bump.

[1] https://cgit.uclibc-ng.org/cgi/cgit/uclibc-ng.git/commit/?id=269a2a2a0f863e1b43dc02f2f4f0f3c50299456e

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Alexey Brodkin 2018-08-07 20:33:59 +03:00 committed by Peter Korsgaard
parent bef1786475
commit d9c3f93f3f
1 changed files with 45 additions and 0 deletions
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45
package/uclibc/0003-ldso-arc-fix-LD_DEBUG-segv-when-printing-R_ARC_NONE.patch Normal file
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@ -0,0 +1,45 @@
From 269a2a2a0f863e1b43dc02f2f4f0f3c50299456e Mon Sep 17 00:00:00 2001
From: Vineet Gupta <Vineet.Gupta1@synopsys.com>
Date: Tue, 26 Jun 2018 18:26:24 -0700
Subject: [PATCH] ldso/arc: fix LD_DEBUG segv when printing R_ARC_NONE
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
---
ldso/ldso/arc/elfinterp.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/ldso/ldso/arc/elfinterp.c b/ldso/ldso/arc/elfinterp.c
index 5a02bc234..a30c19bcb 100644
--- a/ldso/ldso/arc/elfinterp.c
+++ b/ldso/ldso/arc/elfinterp.c
@@ -64,7 +64,7 @@ _dl_linux_resolver(struct elf_resolve *tpnt, unsigned int plt_pc)
if (_dl_debug_bindings) {
_dl_dprintf(_dl_debug_file, "\nresolve function: %s", symname);
if (_dl_debug_detail)
- _dl_dprintf(_dl_debug_file, "\n\tpatched %x ==> %pc @ %pl\n",
+ _dl_dprintf(_dl_debug_file, "\n\tpatched %x ==> %pc @ %p\n",
*got_addr, new_addr, got_addr);
}
@@ -178,7 +178,7 @@ _dl_do_reloc(struct elf_resolve *tpnt, struct r_scope_elem *scope,
log_entry:
#if defined __SUPPORT_LD_DEBUG__
- if (_dl_debug_detail)
+ if (_dl_debug_detail && (reloc_type != R_ARC_NONE))
_dl_dprintf(_dl_debug_file,"\tpatched: %x ==> %x @ %x",
old_val, *reloc_addr, reloc_addr);
#endif
@@ -214,7 +214,7 @@ _dl_do_lazy_reloc(struct elf_resolve *tpnt, struct r_scope_elem *scope,
}
#if defined __SUPPORT_LD_DEBUG__
- if (_dl_debug_reloc && _dl_debug_detail)
+ if (_dl_debug_reloc && _dl_debug_detail && (reloc_type != R_ARC_NONE))
_dl_dprintf(_dl_debug_file, "\tpatched: %x ==> %x @ %x\n",
old_val, *reloc_addr, reloc_addr);
#endif
--
2.16.2