diff options
| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2022-02-15 13:41:02 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2022-02-16 23:25:11 +1100 |
| commit | a257cacc38718c83cee003487e03197f237f5c3f (patch) | |
| tree | a960674ea9bbc43410157051a44a391c3b767b39 /arch/parisc/Kconfig | |
| parent | 41a88b45479da873bfc5d29ba1a545a780c5329a (diff) | |
asm-generic: Define CONFIG_HAVE_FUNCTION_DESCRIPTORS
Replace HAVE_DEREFERENCE_FUNCTION_DESCRIPTOR by a config option
named CONFIG_HAVE_FUNCTION_DESCRIPTORS and use it instead of
'dereference_function_descriptor' macro to know whether an
arch has function descriptors.
To limit churn in one of the following patches, use
an #ifdef/#else construct with empty first part
instead of an #ifndef in asm-generic/sections.h
On powerpc, make sure the config option matches the ABI used
by the compiler with a BUILD_BUG_ON() and add missing _CALL_ELF=2
when calling 'sparse' so that sparse sees the same piece of
code as GCC.
And include a helper to check whether an arch has function
descriptors or not : have_function_descriptors()
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Acked-by: Helge Deller <deller@gmx.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/4a0f11fb0ea74a3197bc44dd7ba25e53a24fd03d.1644928018.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/parisc/Kconfig')
| -rw-r--r-- | arch/parisc/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig index 43c1c880def6..82e7ab1a9764 100644 --- a/arch/parisc/Kconfig +++ b/arch/parisc/Kconfig @@ -69,6 +69,7 @@ config PARISC select HAVE_DYNAMIC_FTRACE_WITH_REGS select HAVE_SOFTIRQ_ON_OWN_STACK if IRQSTACKS select TRACE_IRQFLAGS_SUPPORT + select HAVE_FUNCTION_DESCRIPTORS if 64BIT help The PA-RISC microprocessor is designed by Hewlett-Packard and used |