diff options
Diffstat (limited to 'gnu/packages/patches/libffi-3.3-powerpc-fixes.patch')
| -rw-r--r-- | gnu/packages/patches/libffi-3.3-powerpc-fixes.patch | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/gnu/packages/patches/libffi-3.3-powerpc-fixes.patch b/gnu/packages/patches/libffi-3.3-powerpc-fixes.patch new file mode 100644 index 0000000000..971ed26180 --- /dev/null +++ b/gnu/packages/patches/libffi-3.3-powerpc-fixes.patch @@ -0,0 +1,138 @@ +This is a combination of the following 4 commits: +https://github.com/libffi/libffi/commit/01a75ed76ea7e57f1b7a5c183e2b1e890e6aa0fd.patch +https://github.com/libffi/libffi/commit/6663047f56c2932a6b10a790f4ac6666dd181326.patch +https://github.com/libffi/libffi/commit/e50b9ef8b910fa642ef158f6642e60d54d7ad740.patch +https://github.com/libffi/libffi/commit/4d6d2866ae43e55325e8ee96561221804602cd7a.patch + +From 2dbfa92a95e3bacabca431b89d2a5925e48a0e40 Mon Sep 17 00:00:00 2001 +From: Sergei Trofimovich <slyfox@gentoo.org> +Date: Thu, 28 Nov 2019 12:42:41 +0000 + +powerpc: fix build failure on power7 and older (#532) + +Build failure looks as: +``` +libtool: compile: powerpc-unknown-linux-gnu-gcc \ + -O2 -mcpu=powerpc -mtune=powerpc -pipe ... -c src/powerpc/ffi.c ... +In file included from src/powerpc/ffi.c:33: +src/powerpc/ffi_powerpc.h:65:9: error: '__int128' is not supported on this target + 65 | typedef __int128 float128; + | ^~~~~~~~ +``` + +The fix avoids using __int128 in favour of aligned char[16]. + +Closes: https://github.com/libffi/libffi/issues/531 +Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org> + +Address platforms with no __int128. + +powerpc64: Use memcpy to help platforms with no __int128. (#534) + +Signed-off-by: Khem Raj <raj.khem@gmail.com> + +Update powerpc sysv assembly for ffi_powerpc.h changes (#541) + +Some of the flag bits were moved when adding powerpc64 vector support. + +Fixes #536 +--- + src/powerpc/ffi_linux64.c | 12 ++++++------ + src/powerpc/ffi_powerpc.h | 2 +- + src/powerpc/sysv.S | 12 +++++------- + 3 files changed, 12 insertions(+), 14 deletions(-) + +diff --git a/src/powerpc/ffi_linux64.c b/src/powerpc/ffi_linux64.c +index de0d033..4d50878 100644 +--- a/src/powerpc/ffi_linux64.c ++++ b/src/powerpc/ffi_linux64.c +@@ -547,9 +547,9 @@ ffi_prep_args64 (extended_cif *ecif, unsigned long *const stack) + if (next_arg.ul == gpr_end.ul) + next_arg.ul = rest.ul; + if (vecarg_count < NUM_VEC_ARG_REGISTERS64 && i < nfixedargs) +- *vec_base.f128++ = **p_argv.f128; ++ memcpy (vec_base.f128++, *p_argv.f128, sizeof (float128)); + else +- *next_arg.f128 = **p_argv.f128; ++ memcpy (next_arg.f128, *p_argv.f128, sizeof (float128)); + if (++next_arg.f128 == gpr_end.f128) + next_arg.f128 = rest.f128; + vecarg_count++; +@@ -680,9 +680,9 @@ ffi_prep_args64 (extended_cif *ecif, unsigned long *const stack) + { + if (vecarg_count < NUM_VEC_ARG_REGISTERS64 + && i < nfixedargs) +- *vec_base.f128++ = *arg.f128++; ++ memcpy (vec_base.f128++, arg.f128, sizeof (float128)); + else +- *next_arg.f128 = *arg.f128++; ++ memcpy (next_arg.f128, arg.f128++, sizeof (float128)); + if (++next_arg.f128 == gpr_end.f128) + next_arg.f128 = rest.f128; + vecarg_count++; +@@ -986,9 +986,9 @@ ffi_closure_helper_LINUX64 (ffi_cif *cif, + do + { + if (pvec < end_pvec && i < nfixedargs) +- *to.f128 = *pvec++; ++ memcpy (to.f128, pvec++, sizeof (float128)); + else +- *to.f128 = *from.f128; ++ memcpy (to.f128, from.f128, sizeof (float128)); + to.f128++; + from.f128++; + } +diff --git a/src/powerpc/ffi_powerpc.h b/src/powerpc/ffi_powerpc.h +index 5ee2a70..8e2f2f0 100644 +--- a/src/powerpc/ffi_powerpc.h ++++ b/src/powerpc/ffi_powerpc.h +@@ -62,7 +62,7 @@ typedef _Float128 float128; + #elif defined(__FLOAT128__) + typedef __float128 float128; + #else +-typedef __int128 float128; ++typedef char float128[16] __attribute__((aligned(16))); + #endif + + void FFI_HIDDEN ffi_closure_SYSV (void); +diff --git a/src/powerpc/sysv.S b/src/powerpc/sysv.S +index 1474ce7..df97734 100644 +--- a/src/powerpc/sysv.S ++++ b/src/powerpc/sysv.S +@@ -104,17 +104,16 @@ ENTRY(ffi_call_SYSV) + bctrl + + /* Now, deal with the return value. */ +- mtcrf 0x01,%r31 /* cr7 */ ++ mtcrf 0x03,%r31 /* cr6-cr7 */ + bt- 31,L(small_struct_return_value) + bt- 30,L(done_return_value) + #ifndef __NO_FPRS__ + bt- 29,L(fp_return_value) + #endif + stw %r3,0(%r30) +- bf+ 28,L(done_return_value) ++ bf+ 27,L(done_return_value) + stw %r4,4(%r30) +- mtcrf 0x02,%r31 /* cr6 */ +- bf 27,L(done_return_value) ++ bf 26,L(done_return_value) + stw %r5,8(%r30) + stw %r6,12(%r30) + /* Fall through... */ +@@ -145,10 +144,9 @@ L(done_return_value): + #ifndef __NO_FPRS__ + L(fp_return_value): + .cfi_restore_state +- bf 28,L(float_return_value) ++ bf 27,L(float_return_value) + stfd %f1,0(%r30) +- mtcrf 0x02,%r31 /* cr6 */ +- bf 27,L(done_return_value) ++ bf 26,L(done_return_value) + stfd %f2,8(%r30) + b L(done_return_value) + L(float_return_value): +-- +2.26.0 + |