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| author | Victor Do Nascimento <Victor.DoNascimento@arm.com> | 2022-06-22 14:56:00 +0100 |
|---|---|---|
| committer | Szabolcs Nagy <szabolcs.nagy@arm.com> | 2022-06-22 14:56:23 +0100 |
| commit | 40b662ce7b65d5eaefa40fd8046d6f3c6b3238c1 (patch) | |
| tree | 106dff8d4976435bb2aafd372965b88e55cafe87 | |
| parent | ca02337e93b28f6a9442f479ee019d553996fbd1 (diff) | |
| download | arm-optimized-routines-40b662ce7b65d5eaefa40fd8046d6f3c6b3238c1.tar.gz | |
string: add .fnstart and .fnend directives to ENTRY/END macros
Modify the ENTRY_ALIGN and END assembler macros to mark the start and
end of functions for arm unwind tables.
Enables the pacbti epilogue function to emit .save{} directives for
stack unwinding.
| -rw-r--r-- | string/asmdefs.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/string/asmdefs.h b/string/asmdefs.h index 0d6ebd7..e84626f 100644 --- a/string/asmdefs.h +++ b/string/asmdefs.h @@ -8,6 +8,11 @@ #ifndef _ASMDEFS_H #define _ASMDEFS_H +#if defined (__arm__) +#define ARM_FNSTART .fnstart +#define ARM_FNEND .fnend +#endif + #if defined(__aarch64__) /* Branch Target Identitication support. */ @@ -52,6 +57,7 @@ GNU_PROPERTY (FEATURE_1_AND, FEATURE_1_BTI|FEATURE_1_PAC) .type name,%function; \ .align alignment; \ name: \ + ARM_FNSTART; \ .cfi_startproc; \ BTI_C; @@ -64,6 +70,7 @@ GNU_PROPERTY (FEATURE_1_AND, FEATURE_1_BTI|FEATURE_1_PAC) .type name,%function; \ .align alignment; \ name: \ + ARM_FNSTART; \ .cfi_startproc; #endif @@ -77,6 +84,7 @@ GNU_PROPERTY (FEATURE_1_AND, FEATURE_1_BTI|FEATURE_1_PAC) #define END(name) \ .cfi_endproc; \ + ARM_FNEND; \ .size name, .-name; #define L(l) .L ## l |