| From 5ad700c92224193bfc789f7d53af38fc6f8b8904 Mon Sep 17 00:00:00 2001 |
| From: Hongxu Jia <hongxu.jia@windriver.com> |
| Date: Thu, 19 Jul 2018 17:31:35 +0800 |
| Subject: [PATCH] fix compiling failure on mips64-n32 bsp |
| |
| - Tweak mips64-n32 with mips32 |
| |
| - The toolchain of mips64-n32 supports both of macro |
| `__mips64' and `__mips__', but 32bit is required here. |
| |
| - N32 uses 64-bit registers but restricts addresses to 32 bits. |
| https://www.linux-mips.org/pub/linux/mips/doc/ABI/MIPS-N32-ABI-Handbook.pdf |
| Table 2-1 specifies the use of registers in n32 and native 64-bit mode. |
| From the table, N32 and N64 have the same registers |
| |
| Upstream-Status: Inappropriate [oe specific] |
| |
| Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com> |
| --- |
| build/moz.configure/init.configure | 5 ++++- |
| js/src/jit/mips-shared/Architecture-mips-shared.h | 4 +++- |
| python/mozbuild/mozbuild/configure/constants.py | 2 +- |
| 3 files changed, 8 insertions(+), 3 deletions(-) |
| |
| --- a/build/moz.configure/init.configure |
| +++ b/build/moz.configure/init.configure |
| @@ -650,7 +650,10 @@ def split_triplet(triplet, allow_unknown |
| canonical_cpu = 'mips32' |
| endianness = 'little' if 'el' in cpu else 'big' |
| elif cpu in ('mips64', 'mips64el'): |
| - canonical_cpu = 'mips64' |
| + if 'n32' in triplet: |
| + canonical_cpu = 'mips32' |
| + else: |
| + canonical_cpu = 'mips64' |
| endianness = 'little' if 'el' in cpu else 'big' |
| elif cpu.startswith('aarch64'): |
| canonical_cpu = 'aarch64' |
| --- a/js/src/jit/mips-shared/Architecture-mips-shared.h |
| +++ b/js/src/jit/mips-shared/Architecture-mips-shared.h |
| @@ -26,6 +26,8 @@ |
| #define USES_O32_ABI |
| #elif (defined(_MIPS_SIM) && (_MIPS_SIM == _ABI64)) || defined(JS_SIMULATOR_MIPS64) |
| #define USES_N64_ABI |
| +#elif (defined(_MIPS_SIM) && (_MIPS_SIM == _ABIN32)) |
| +#define USES_N32_ABI |
| #else |
| #error "Unsupported ABI" |
| #endif |
| @@ -93,7 +95,7 @@ class Registers |
| ta1 = t5, |
| ta2 = t6, |
| ta3 = t7, |
| -#elif defined(USES_N64_ABI) |
| +#elif defined(USES_N64_ABI) || defined(USES_N32_ABI) |
| a4 = r8, |
| a5 = r9, |
| a6 = r10, |
| --- a/python/mozbuild/mozbuild/configure/constants.py |
| +++ b/python/mozbuild/mozbuild/configure/constants.py |
| @@ -90,8 +90,8 @@ CPU_preprocessor_checks = OrderedDict(( |
| ('hppa', '__hppa__'), |
| ('sparc64', '__sparc__ && __arch64__'), |
| ('sparc', '__sparc__'), |
| - ('mips64', '__mips64'), |
| ('mips32', '__mips__'), |
| + ('mips64', '__mips64'), |
| ('sh4', '__sh__'), |
| )) |
| |