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

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From: Miles Chen <miles.chen@xxxxxxxxxxxx>
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/e8965b25-f15b-c7b4-748c-d207dda9c8e8@xxxxxxxx/

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

[mkubecek@xxxxxxx: changelog addition]
Link: https://lkml.kernel.org/r/20210913030625.4525-1-miles.chen@xxxxxxxxxxxx
Fixes: 54fed35fd393 ("riscv: Enable BUILDTIME_TABLE_SORT")
Signed-off-by: Miles Chen <miles.chen@xxxxxxxxxxxx>
Reported-by: Stefan Wahren <stefan.wahren@xxxxxxxx>
Tested-by: Stefan Wahren <stefan.wahren@xxxxxxxx>
Reviewed-by: Jisheng Zhang <jszhang@xxxxxxxxxx>
Cc: Michal Kubecek <mkubecek@xxxxxxx>
Cc: Paul Walmsley <paul.walmsley@xxxxxxxxxx>
Cc: Palmer Dabbelt <palmer@xxxxxxxxxxx>
Cc: Albert Ou <aou@xxxxxxxxxxxxxxxxx>
Cc: Markus Mayer <mmayer@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

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

--- 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 *);
_



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