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authorWill Deacon <will.deacon@arm.com>2019-02-26 15:06:42 +0000
committerWill Deacon <will.deacon@arm.com>2019-04-09 11:21:13 +0100
commit453b7740ebfda2d84be7fb583c54f0c91c592869 (patch)
tree1108d1c08094213cc18a7f8e4daae990f0aa99a3 /arch/arm64/include/asm/brk-imm.h
parentfb610f2a2006322bebeb30408fefce6a01df09ea (diff)
arm64: probes: Move magic BRK values into brk-imm.h
kprobes and uprobes reserve some BRK immediates for installing their probes. Define these along with the other reservations in brk-imm.h and rename the ESR definitions to be consistent with the others that we already have. Reviewed-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm64/include/asm/brk-imm.h')
-rw-r--r--arch/arm64/include/asm/brk-imm.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/brk-imm.h b/arch/arm64/include/asm/brk-imm.h
index fec9e1384641..d84294064e6a 100644
--- a/arch/arm64/include/asm/brk-imm.h
+++ b/arch/arm64/include/asm/brk-imm.h
@@ -11,6 +11,8 @@
/*
* #imm16 values used for BRK instruction generation
+ * 0x004: for installing kprobes
+ * 0x005: for installing uprobes
* Allowed values for kgdb are 0x400 - 0x7ff
* 0x100: for triggering a fault on purpose (reserved)
* 0x400: for dynamic BRK instruction
@@ -18,6 +20,8 @@
* 0x800: kernel-mode BUG() and WARN() traps
* 0x9xx: tag-based KASAN trap (allowed values 0x900 - 0x9ff)
*/
+#define KPROBES_BRK_IMM 0x004
+#define UPROBES_BRK_IMM 0x005
#define FAULT_BRK_IMM 0x100
#define KGDB_DYN_DBG_BRK_IMM 0x400
#define KGDB_COMPILED_DBG_BRK_IMM 0x401