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authorLinus Torvalds <torvalds@linux-foundation.org>2020-01-25 14:32:51 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2020-01-25 14:32:51 -0800
commit2821e26f3a0a3872184581caac8115bb02641941 (patch)
tree723cdf6f8da9f40652cbd8ed35d2da461dfebf58 /scripts
parent84809aaf78b5b4c2e6478dc6121a1c8fb439a024 (diff)
parent6849b5eba1965ceb0cad3a75877ef4569dd3638e (diff)
downloadlinux-2821e26f3a0a3872184581caac8115bb02641941.tar.bz2
Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King: - fix ftrace relocation type filtering - relax arch timer version check * tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: 8955/1: virt: Relax arch timer version check during early boot ARM: 8950/1: ftrace/recordmcount: filter relocation types
Diffstat (limited to 'scripts')
-rw-r--r--scripts/recordmcount.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/scripts/recordmcount.c b/scripts/recordmcount.c
index 612268eabef4..7225107a9aaf 100644
--- a/scripts/recordmcount.c
+++ b/scripts/recordmcount.c
@@ -38,6 +38,10 @@
#define R_AARCH64_ABS64 257
#endif
+#define R_ARM_PC24 1
+#define R_ARM_THM_CALL 10
+#define R_ARM_CALL 28
+
static int fd_map; /* File descriptor for file being modified. */
static int mmap_failed; /* Boolean flag. */
static char gpfx; /* prefix for global symbol name (sometimes '_') */
@@ -418,6 +422,18 @@ static char const *already_has_rel_mcount = "success"; /* our work here is done!
#define RECORD_MCOUNT_64
#include "recordmcount.h"
+static int arm_is_fake_mcount(Elf32_Rel const *rp)
+{
+ switch (ELF32_R_TYPE(w(rp->r_info))) {
+ case R_ARM_THM_CALL:
+ case R_ARM_CALL:
+ case R_ARM_PC24:
+ return 0;
+ }
+
+ return 1;
+}
+
/* 64-bit EM_MIPS has weird ELF64_Rela.r_info.
* http://techpubs.sgi.com/library/manuals/4000/007-4658-001/pdf/007-4658-001.pdf
* We interpret Table 29 Relocation Operation (Elf64_Rel, Elf64_Rela) [p.40]
@@ -523,6 +539,7 @@ static int do_file(char const *const fname)
altmcount = "__gnu_mcount_nc";
make_nop = make_nop_arm;
rel_type_nop = R_ARM_NONE;
+ is_fake_mcount32 = arm_is_fake_mcount;
gpfx = 0;
break;
case EM_AARCH64: