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Diffstat (limited to 'user/xorg-server/gcc12.patch')
| -rw-r--r-- | user/xorg-server/gcc12.patch | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/user/xorg-server/gcc12.patch b/user/xorg-server/gcc12.patch new file mode 100644 index 000000000..5aa2f08c6 --- /dev/null +++ b/user/xorg-server/gcc12.patch @@ -0,0 +1,89 @@ +From c6b0dcb82d4db07a2f32c09a8c09c85a5f57248e Mon Sep 17 00:00:00 2001 +From: Olivier Fourdan <ofourdan@redhat.com> +Date: Thu, 20 Jan 2022 10:20:38 +0100 +Subject: [PATCH] render: Fix build with gcc 12 +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +The xserver fails to compile with the latest gcc 12: + + render/picture.c: In function ‘CreateSolidPicture’: + render/picture.c:874:26: error: array subscript ‘union _SourcePict[0]’ is partly outside array bounds of ‘unsigned char[16]’ [-Werror=array-bounds] + 874 | pPicture->pSourcePict->type = SourcePictTypeSolidFill; + | ^~ + render/picture.c:868:45: note: object of size 16 allocated by ‘malloc’ + 868 | pPicture->pSourcePict = (SourcePictPtr) malloc(sizeof(PictSolidFill)); + | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + render/picture.c: In function ‘CreateLinearGradientPicture’: + render/picture.c:906:26: error: array subscript ‘union _SourcePict[0]’ is partly outside array bounds of ‘unsigned char[32]’ [-Werror=array-bounds] + 906 | pPicture->pSourcePict->linear.type = SourcePictTypeLinear; + | ^~ + render/picture.c:899:45: note: object of size 32 allocated by ‘malloc’ + 899 | pPicture->pSourcePict = (SourcePictPtr) malloc(sizeof(PictLinearGradient)); + | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + render/picture.c: In function ‘CreateConicalGradientPicture’: + render/picture.c:989:26: error: array subscript ‘union _SourcePict[0]’ is partly outside array bounds of ‘unsigned char[32]’ [-Werror=array-bounds] + 989 | pPicture->pSourcePict->conical.type = SourcePictTypeConical; + | ^~ + render/picture.c:982:45: note: object of size 32 allocated by ‘malloc’ + 982 | pPicture->pSourcePict = (SourcePictPtr) malloc(sizeof(PictConicalGradient)); + | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + cc1: some warnings being treated as errors + ninja: build stopped: subcommand failed. + +This is because gcc 12 has become stricter and raises a warning now. + +Fix the warning/error by allocating enough memory to store the union +struct. + +Signed-off-by: Olivier Fourdan <ofourdan@redhat.com> +Acked-by: Michel Dänzer <mdaenzer@redhat.com> +Closes: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1256 +--- + render/picture.c | 8 ++++---- + 1 file changed, 4 insertions(+), 4 deletions(-) + +diff --git a/render/picture.c b/render/picture.c +index afa0d258fa..2be4b1954f 100644 +--- a/render/picture.c ++++ b/render/picture.c +@@ -865,7 +865,7 @@ CreateSolidPicture(Picture pid, xRenderColor * color, int *error) + } + + pPicture->id = pid; +- pPicture->pSourcePict = (SourcePictPtr) malloc(sizeof(PictSolidFill)); ++ pPicture->pSourcePict = (SourcePictPtr) malloc(sizeof(SourcePict)); + if (!pPicture->pSourcePict) { + *error = BadAlloc; + free(pPicture); +@@ -896,7 +896,7 @@ CreateLinearGradientPicture(Picture pid, xPointFixed * p1, xPointFixed * p2, + } + + pPicture->id = pid; +- pPicture->pSourcePict = (SourcePictPtr) malloc(sizeof(PictLinearGradient)); ++ pPicture->pSourcePict = (SourcePictPtr) malloc(sizeof(SourcePict)); + if (!pPicture->pSourcePict) { + *error = BadAlloc; + free(pPicture); +@@ -936,7 +936,7 @@ CreateRadialGradientPicture(Picture pid, xPointFixed * inner, + } + + pPicture->id = pid; +- pPicture->pSourcePict = (SourcePictPtr) malloc(sizeof(PictRadialGradient)); ++ pPicture->pSourcePict = (SourcePictPtr) malloc(sizeof(SourcePict)); + if (!pPicture->pSourcePict) { + *error = BadAlloc; + free(pPicture); +@@ -979,7 +979,7 @@ CreateConicalGradientPicture(Picture pid, xPointFixed * center, xFixed angle, + } + + pPicture->id = pid; +- pPicture->pSourcePict = (SourcePictPtr) malloc(sizeof(PictConicalGradient)); ++ pPicture->pSourcePict = (SourcePictPtr) malloc(sizeof(SourcePict)); + if (!pPicture->pSourcePict) { + *error = BadAlloc; + free(pPicture); +-- +GitLab + |