* [PATCH 1/2] libelf: Sync elf.h from glibc.
@ 2020-08-28 22:42 Mark Wielaard
2020-08-28 22:42 ` [PATCH 2/2] backends: Implement aarch64_dynamic_tag_name and aarch64_dynamic_tag_check Mark Wielaard
2020-09-07 7:29 ` [PATCH 1/2] libelf: Sync elf.h from glibc Mark Wielaard
0 siblings, 2 replies; 4+ messages in thread
From: Mark Wielaard @ 2020-08-28 22:42 UTC (permalink / raw)
To: elfutils-devel; +Cc: Mark Wielaard
Gets us DT_AARCH64_BTI_PLT and DT_AARCH64_PAC_PLT.
Signed-off-by: Mark Wielaard <mark@klomp.org>
---
libelf/ChangeLog | 4 ++++
libelf/elf.h | 2 ++
2 files changed, 6 insertions(+)
diff --git a/libelf/ChangeLog b/libelf/ChangeLog
index 77044c1c..a3f15883 100644
--- a/libelf/ChangeLog
+++ b/libelf/ChangeLog
@@ -1,3 +1,7 @@
+2020-08-28 Mark Wielaard <mark@klomp.org>
+
+ * elf.h: Update from glibc.
+
2020-08-19 Mark Wielaard <mark@klomp.org>
* elf32_updatenull.c (updatenull_wrlock): Fixup the sh_addralign
diff --git a/libelf/elf.h b/libelf/elf.h
index 197b557d..ff9f1dad 100644
--- a/libelf/elf.h
+++ b/libelf/elf.h
@@ -2875,6 +2875,8 @@ enum
#define R_AARCH64_IRELATIVE 1032 /* STT_GNU_IFUNC relocation. */
/* AArch64 specific values for the Dyn d_tag field. */
+#define DT_AARCH64_BTI_PLT (DT_LOPROC + 1)
+#define DT_AARCH64_PAC_PLT (DT_LOPROC + 3)
#define DT_AARCH64_VARIANT_PCS (DT_LOPROC + 5)
#define DT_AARCH64_NUM 6
--
2.18.4
^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH 2/2] backends: Implement aarch64_dynamic_tag_name and aarch64_dynamic_tag_check
2020-08-28 22:42 [PATCH 1/2] libelf: Sync elf.h from glibc Mark Wielaard
@ 2020-08-28 22:42 ` Mark Wielaard
2020-09-07 7:29 ` Mark Wielaard
2020-09-07 7:29 ` [PATCH 1/2] libelf: Sync elf.h from glibc Mark Wielaard
1 sibling, 1 reply; 4+ messages in thread
From: Mark Wielaard @ 2020-08-28 22:42 UTC (permalink / raw)
To: elfutils-devel; +Cc: Mark Wielaard
Signed-off-by: Mark Wielaard <mark@klomp.org>
---
backends/ChangeLog | 7 +++++++
backends/aarch64_init.c | 2 ++
backends/aarch64_symbol.c | 26 ++++++++++++++++++++++++++
3 files changed, 35 insertions(+)
diff --git a/backends/ChangeLog b/backends/ChangeLog
index c85dfd2a..ce4c971e 100644
--- a/backends/ChangeLog
+++ b/backends/ChangeLog
@@ -1,3 +1,10 @@
+2020-08-28 Mark Wielard <mark@klomp.org>
+
+ * aarch64_init.c (aarch64_init): Hook dynamic_tag_name and
+ dynamic_tag_check.
+ * aarch64_symbol.c (aarch64_dynamic_tag_name): New function.
+ (aarch64_dynamic_tag_check): Likewise.
+
2020-06-16 Mark Wielard <mark@klomp.org>
* common-reloc.c (reloc_nametable): Make zero a 1 char array.
diff --git a/backends/aarch64_init.c b/backends/aarch64_init.c
index 66bfae94..bed92954 100644
--- a/backends/aarch64_init.c
+++ b/backends/aarch64_init.c
@@ -50,6 +50,8 @@ aarch64_init (Elf *elf __attribute__ ((unused)),
HOOK (eh, reloc_simple_type);
HOOK (eh, return_value_location);
HOOK (eh, check_special_symbol);
+ HOOK (eh, dynamic_tag_name);
+ HOOK (eh, dynamic_tag_check);
HOOK (eh, data_marker_symbol);
HOOK (eh, abi_cfi);
diff --git a/backends/aarch64_symbol.c b/backends/aarch64_symbol.c
index e30c409d..464a5695 100644
--- a/backends/aarch64_symbol.c
+++ b/backends/aarch64_symbol.c
@@ -106,3 +106,29 @@ aarch64_data_marker_symbol (const GElf_Sym *sym, const char *sname)
&& GELF_ST_TYPE (sym->st_info) == STT_NOTYPE
&& (strcmp (sname, "$d") == 0 || strncmp (sname, "$d.", 3) == 0));
}
+
+const char *
+aarch64_dynamic_tag_name (int64_t tag, char *buf __attribute__ ((unused)),
+ size_t len __attribute__ ((unused)))
+{
+ switch (tag)
+ {
+ case DT_AARCH64_BTI_PLT:
+ return "AARCH64_BTI_PLT";
+ case DT_AARCH64_PAC_PLT:
+ return "AARCH64_PAC_PLT";
+ case DT_AARCH64_VARIANT_PCS:
+ return "AARCH64_VARIANT_PCS";
+ default:
+ break;
+ }
+ return NULL;
+}
+
+bool
+aarch64_dynamic_tag_check (int64_t tag)
+{
+ return (tag == DT_AARCH64_BTI_PLT
+ || tag == DT_AARCH64_PAC_PLT
+ || tag == DT_AARCH64_VARIANT_PCS);
+}
--
2.18.4
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH 1/2] libelf: Sync elf.h from glibc.
2020-08-28 22:42 [PATCH 1/2] libelf: Sync elf.h from glibc Mark Wielaard
2020-08-28 22:42 ` [PATCH 2/2] backends: Implement aarch64_dynamic_tag_name and aarch64_dynamic_tag_check Mark Wielaard
@ 2020-09-07 7:29 ` Mark Wielaard
1 sibling, 0 replies; 4+ messages in thread
From: Mark Wielaard @ 2020-09-07 7:29 UTC (permalink / raw)
To: elfutils-devel
On Sat, 2020-08-29 at 00:42 +0200, Mark Wielaard wrote:
> Gets us DT_AARCH64_BTI_PLT and DT_AARCH64_PAC_PLT.
Pushed.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH 2/2] backends: Implement aarch64_dynamic_tag_name and aarch64_dynamic_tag_check
2020-08-28 22:42 ` [PATCH 2/2] backends: Implement aarch64_dynamic_tag_name and aarch64_dynamic_tag_check Mark Wielaard
@ 2020-09-07 7:29 ` Mark Wielaard
0 siblings, 0 replies; 4+ messages in thread
From: Mark Wielaard @ 2020-09-07 7:29 UTC (permalink / raw)
To: elfutils-devel
On Sat, 2020-08-29 at 00:42 +0200, Mark Wielaard wrote:
> +2020-08-28 Mark Wielard <mark@klomp.org>
> +
> + * aarch64_init.c (aarch64_init): Hook dynamic_tag_name and
> + dynamic_tag_check.
> + * aarch64_symbol.c (aarch64_dynamic_tag_name): New function.
> + (aarch64_dynamic_tag_check): Likewise.
Pushed.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2020-09-07 7:29 UTC | newest]
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