[bug-libsigsegv] [PATCH] m4/stack-direction: RISC-V stack grows downward

[Thomas Petazzoni]

While commit 671b2528b55c57eda1a8fe5872ff1ef61014235f ("Improve
support for Linux/RISC-V") adds some support for the RISC-V
architecture, it doesn't update m4/stack-direction.m4 to properly
support cross-compiling libsigsegv for a RISC-V architecture.

According to
https://riscv.org/wp-content/uploads/2015/01/riscv-calling.pdf: "In
the standard RISC-V calling convention, the stack grows downward", so
let's update m4/stack-direction.m4 accordingly.

Signed-off-by: Thomas Petazzoni <address@hidden>
---
 ChangeLog             | 5 +++++
 m4/stack-direction.m4 | 1 +
 2 files changed, 6 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 16fe1fd..0696e5c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2018-11-13  Thomas Petazzoni <address@hidden>
+
+       Fix cross-compilation for RISC-V.
+       * m4/stack-direction.m4: Add stack direction for RISC-V.
+
 2018-10-24  Bruno Haible  <address@hidden>
 
        Update after gnulib changed.
diff --git a/m4/stack-direction.m4 b/m4/stack-direction.m4
index c373f1c..9504f88 100644
--- a/m4/stack-direction.m4
+++ b/m4/stack-direction.m4
@@ -43,6 +43,7 @@ AC_DEFUN([SV_STACK_DIRECTION],
       pdp11 | \
       pj* | \
       powerpc* | rs6000 | \
+      riscv* | \
       romp | \
       s390* | \
       sh* | \
-- 
2.19.1