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* [glibc/alistair/rv32.next] RISC-V: Add path of library directories for the 32-bit
@ 2020-04-26 2:25 Alistair Francis
0 siblings, 0 replies; 2+ messages in thread
From: Alistair Francis @ 2020-04-26 2:25 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=08f88cc98ee77a7c7ad94107bc20bfaf3817a646
commit 08f88cc98ee77a7c7ad94107bc20bfaf3817a646
Author: Zong Li <zongbox@gmail.com>
Date: Fri Nov 30 17:15:44 2018 +0800
RISC-V: Add path of library directories for the 32-bit
For the recommand of 64 bit version, we add the libraries path of 32 bit
in this patch.
The status of RV32 binaries under RV64 kernels is that the ISA
optionally supports having different XLEN for user and supervisor modes,
but AFAIK there's no silicon that implements this feature, and the Linux
kernel doesn't support it yet.
For the recommand of 64 bit version, we add the libraries path of 32 bit
in this patch. This includes a fix to avoid an out of bound array check
when building with GCC 8.2.
Diff:
---
sysdeps/unix/sysv/linux/riscv/dl-cache.h | 17 +++++++++++++++--
1 file changed, 15 insertions(+), 2 deletions(-)
diff --git a/sysdeps/unix/sysv/linux/riscv/dl-cache.h b/sysdeps/unix/sysv/linux/riscv/dl-cache.h
index c297dfe84f..60fc172edb 100644
--- a/sysdeps/unix/sysv/linux/riscv/dl-cache.h
+++ b/sysdeps/unix/sysv/linux/riscv/dl-cache.h
@@ -34,6 +34,8 @@
RISC-V, libraries can be found in paths ending in:
- /lib64/lp64d
- /lib64/lp64
+ - /lib32/ilp32d
+ - /lib32/ilp32
- /lib (only ld.so)
so this will add all of those paths.
@@ -49,9 +51,16 @@
do \
{ \
size_t len = strlen (dir); \
- char path[len + 9]; \
+ char path[len + 10]; \
memcpy (path, dir, len + 1); \
- if (len >= 12 && ! memcmp(path + len - 12, "/lib64/lp64d", 12)) \
+ if (len >= 13 && ! memcmp(path + len - 13, "/lib32/ilp32d", 13)) \
+ { \
+ len -= 9; \
+ path[len] = '\0'; \
+ } \
+ if (len >= 12 \
+ && (! memcmp(path + len - 12, "/lib32/ilp32", 12) \
+ || ! memcmp(path + len - 12, "/lib64/lp64d", 12))) \
{ \
len -= 8; \
path[len] = '\0'; \
@@ -64,6 +73,10 @@
add_dir (path); \
if (len >= 4 && ! memcmp(path + len - 4, "/lib", 4)) \
{ \
+ memcpy (path + len, "32/ilp32d", 10); \
+ add_dir (path); \
+ memcpy (path + len, "32/ilp32", 9); \
+ add_dir (path); \
memcpy (path + len, "64/lp64d", 9); \
add_dir (path); \
memcpy (path + len, "64/lp64", 8); \
^ permalink raw reply [flat|nested] 2+ messages in thread
* [glibc/alistair/rv32.next] RISC-V: Add path of library directories for the 32-bit
@ 2020-04-22 22:15 Alistair Francis
0 siblings, 0 replies; 2+ messages in thread
From: Alistair Francis @ 2020-04-22 22:15 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=0e7813b9fe1f9aa707b93615b03fe37514dce74e
commit 0e7813b9fe1f9aa707b93615b03fe37514dce74e
Author: Zong Li <zongbox@gmail.com>
Date: Fri Nov 30 17:15:44 2018 +0800
RISC-V: Add path of library directories for the 32-bit
For the recommand of 64 bit version, we add the libraries path of 32 bit
in this patch.
The status of RV32 binaries under RV64 kernels is that the ISA
optionally supports having different XLEN for user and supervisor modes,
but AFAIK there's no silicon that implements this feature, and the Linux
kernel doesn't support it yet.
For the recommand of 64 bit version, we add the libraries path of 32 bit
in this patch. This includes a fix to avoid an out of bound array check
when building with GCC 8.2.
Diff:
---
sysdeps/unix/sysv/linux/riscv/dl-cache.h | 17 +++++++++++++++--
1 file changed, 15 insertions(+), 2 deletions(-)
diff --git a/sysdeps/unix/sysv/linux/riscv/dl-cache.h b/sysdeps/unix/sysv/linux/riscv/dl-cache.h
index c297dfe84f..60fc172edb 100644
--- a/sysdeps/unix/sysv/linux/riscv/dl-cache.h
+++ b/sysdeps/unix/sysv/linux/riscv/dl-cache.h
@@ -34,6 +34,8 @@
RISC-V, libraries can be found in paths ending in:
- /lib64/lp64d
- /lib64/lp64
+ - /lib32/ilp32d
+ - /lib32/ilp32
- /lib (only ld.so)
so this will add all of those paths.
@@ -49,9 +51,16 @@
do \
{ \
size_t len = strlen (dir); \
- char path[len + 9]; \
+ char path[len + 10]; \
memcpy (path, dir, len + 1); \
- if (len >= 12 && ! memcmp(path + len - 12, "/lib64/lp64d", 12)) \
+ if (len >= 13 && ! memcmp(path + len - 13, "/lib32/ilp32d", 13)) \
+ { \
+ len -= 9; \
+ path[len] = '\0'; \
+ } \
+ if (len >= 12 \
+ && (! memcmp(path + len - 12, "/lib32/ilp32", 12) \
+ || ! memcmp(path + len - 12, "/lib64/lp64d", 12))) \
{ \
len -= 8; \
path[len] = '\0'; \
@@ -64,6 +73,10 @@
add_dir (path); \
if (len >= 4 && ! memcmp(path + len - 4, "/lib", 4)) \
{ \
+ memcpy (path + len, "32/ilp32d", 10); \
+ add_dir (path); \
+ memcpy (path + len, "32/ilp32", 9); \
+ add_dir (path); \
memcpy (path + len, "64/lp64d", 9); \
add_dir (path); \
memcpy (path + len, "64/lp64", 8); \
^ permalink raw reply [flat|nested] 2+ messages in thread
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