[07/16] scripts/sorttable: riscv: fix undeclared identifier 'EM_RISCV' error

Commit Message

Andrew Morton Sept. 24, 2021, 10:43 p.m. UTC

From: Miles Chen <[e-mail]>
Subject: scripts/sorttable: riscv: fix undeclared identifier 'EM_RISCV' error

Fix the following build break by adding a conditional definition of
EM_RISCV in order to allow cross-compilation on machines which do not have
EM_RISCV definition in their host.

build break log from [1]:
scripts/sorttable.c:352:7: error: use of undeclared identifier 'EM_RISCV'

[1] https://lore.kernel.org/lkml/[e-mail]/

EM_RISCV was added to <elf.h> in glibc 2.24 so builds on systems with
glibc headers < 2.24 should show this error.

[[e-mail]: changelog addition]
Link: https://lkml.kernel.org/r/[e-mail]
Fixes: 54fed35fd393 ("riscv: Enable BUILDTIME_TABLE_SORT")
Signed-off-by: Miles Chen <[e-mail]>
Reported-by: Stefan Wahren <[e-mail]>
Tested-by: Stefan Wahren <[e-mail]>
Reviewed-by: Jisheng Zhang <[e-mail]>
Cc: Michal Kubecek <[e-mail]>
Cc: Paul Walmsley <[e-mail]>
Cc: Palmer Dabbelt <[e-mail]>
Cc: Albert Ou <[e-mail]>
Cc: Markus Mayer <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
---

 scripts/sorttable.c |    4 ++++
 1 file changed, 4 insertions(+)

Patch

--- a/scripts/sorttable.c~scripts-sorttable-riscv-fix-undelcred-identifier-em_riscv-error
+++ a/scripts/sorttable.c
@@ -54,6 +54,10 @@ 
 #define EM_ARCV2	195
 #endif
 
+#ifndef EM_RISCV
+#define EM_RISCV	243
+#endif
+
 static uint32_t (*r)(const uint32_t *);
 static uint16_t (*r2)(const uint16_t *);
 static uint64_t (*r8)(const uint64_t *);