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| author | Mark H Weaver <mhw@netris.org> | 2015-07-21 01:49:43 -0400 |
|---|---|---|
| committer | Mark H Weaver <mhw@netris.org> | 2015-07-21 02:05:20 -0400 |
| commit | c0eac5a86246a2c8eb4fe3177a64cfc9687cf5e0 (patch) | |
| tree | ef31bdae1d9aa09f3b99887c3523aee644aeaf25 /gnu/packages/patches/libmad-armv7-thumb-pt2.patch | |
| parent | 4d85391059604959a010c39953bea5c62f52dc90 (diff) | |
| download | guix-c0eac5a86246a2c8eb4fe3177a64cfc9687cf5e0.tar.gz | |
gnu: libmad: Apply fixes for ARMv7 Thumb, etc.
* gnu/packages/patches/libmad-armv7-thumb-pt1.patch, gnu/packages/patches/libmad-armv7-thumb-pt2.patch, gnu/packages/patches/libmad-frame-length.patch: New files. * gnu-system.am (dist_patch_DATA): Add them. * gnu/packages/mp3.scm (libmad)[source]: Add patches.
Diffstat (limited to 'gnu/packages/patches/libmad-armv7-thumb-pt2.patch')
| -rw-r--r-- | gnu/packages/patches/libmad-armv7-thumb-pt2.patch | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/gnu/packages/patches/libmad-armv7-thumb-pt2.patch b/gnu/packages/patches/libmad-armv7-thumb-pt2.patch new file mode 100644 index 0000000000..bb450967e6 --- /dev/null +++ b/gnu/packages/patches/libmad-armv7-thumb-pt2.patch @@ -0,0 +1,36 @@ +Copied from Debian. + +From: Dave Martin +Subject: "rsc" doesnt exist anymore in thumb2 + +diff --git a/fixed.h b/fixed.h +index 4b58abf..ba4bc26 100644 +--- a/fixed.h ++++ b/fixed.h +@@ -275,12 +275,25 @@ mad_fixed_t mad_f_mul_inline(mad_fixed_t x, mad_fixed_t y) + : "+r" (lo), "+r" (hi) \ + : "%r" (x), "r" (y)) + ++#ifdef __thumb__ ++/* In Thumb-2, the RSB-immediate instruction is only allowed with a zero ++ operand. If needed this code can also support Thumb-1 ++ (simply append "s" to the end of the second two instructions). */ ++# define MAD_F_MLN(hi, lo) \ ++ asm ("rsbs %0, %0, #0\n\t" \ ++ "sbc %1, %1, %1\n\t" \ ++ "sub %1, %1, %2" \ ++ : "+&r" (lo), "=&r" (hi) \ ++ : "r" (hi) \ ++ : "cc") ++#else /* ! __thumb__ */ + # define MAD_F_MLN(hi, lo) \ + asm ("rsbs %0, %2, #0\n\t" \ + "rsc %1, %3, #0" \ +- : "=r" (lo), "=r" (hi) \ ++ : "=&r" (lo), "=r" (hi) \ + : "0" (lo), "1" (hi) \ + : "cc") ++#endif /* __thumb__ */ + + # define mad_f_scale64(hi, lo) \ + ({ mad_fixed_t __result; \ |