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From: Adhemerval Zanella <azanella@sourceware.org> To: glibc-cvs@sourceware.org Subject: [glibc/azanella/clang] alloc_buffer: Apply asm redirection before first use Date: Fri, 28 Oct 2022 17:38:57 +0000 (GMT) [thread overview] Message-ID: <20221028173900.B0126382DE20@sourceware.org> (raw) https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=51f48cd64298cf9c6368e9994364f38f210597b3 commit 51f48cd64298cf9c6368e9994364f38f210597b3 Author: Adhemerval Zanella <adhemerval.zanella@linaro.org> Date: Fri Mar 11 15:37:57 2022 -0300 alloc_buffer: Apply asm redirection before first use Compilers may not be able to apply asm redirections to functions after these functions are used for the first time, e.g. clang 13. Diff: --- include/alloc_buffer.h | 23 +++++++++++++++-------- 1 file changed, 15 insertions(+), 8 deletions(-) diff --git a/include/alloc_buffer.h b/include/alloc_buffer.h index 1c1dbe0a46..553de607e8 100644 --- a/include/alloc_buffer.h +++ b/include/alloc_buffer.h @@ -114,6 +114,9 @@ enum /* Internal function. Terminate the process using __libc_fatal. */ void __libc_alloc_buffer_create_failure (void *start, size_t size); +#ifndef _ISOMAC +libc_hidden_proto (__libc_alloc_buffer_create_failure) +#endif /* Create a new allocation buffer. The byte range from START to START + SIZE - 1 must be valid, and the allocation buffer allocates @@ -132,6 +135,9 @@ alloc_buffer_create (void *start, size_t size) /* Internal function. See alloc_buffer_allocate below. */ struct alloc_buffer __libc_alloc_buffer_allocate (size_t size, void **pptr) __attribute__ ((nonnull (2))); +#ifndef _ISOMAC +libc_hidden_proto (__libc_alloc_buffer_allocate) +#endif /* Allocate a buffer of SIZE bytes using malloc. The returned buffer is in a failed state if malloc fails. *PPTR points to the start of @@ -333,6 +339,9 @@ void * __libc_alloc_buffer_alloc_array (struct alloc_buffer *buf, size_t size, size_t align, size_t count) __attribute__ ((nonnull (1))); +#ifndef _ISOMAC +libc_hidden_proto (__libc_alloc_buffer_alloc_array) +#endif /* Obtain a TYPE * pointer to an array of COUNT objects in BUF of TYPE. Consume these bytes from the buffer. Return NULL and mark @@ -349,6 +358,9 @@ void * __libc_alloc_buffer_alloc_array (struct alloc_buffer *buf, struct alloc_buffer __libc_alloc_buffer_copy_bytes (struct alloc_buffer, const void *, size_t) __attribute__ ((nonnull (2))); +#ifndef _ISOMAC +libc_hidden_proto (__libc_alloc_buffer_copy_bytes) +#endif /* Copy SIZE bytes starting at SRC into the buffer. If there is not enough room in the buffer, the buffer is marked as failed. No @@ -363,6 +375,9 @@ alloc_buffer_copy_bytes (struct alloc_buffer *buf, const void *src, size_t size) struct alloc_buffer __libc_alloc_buffer_copy_string (struct alloc_buffer, const char *) __attribute__ ((nonnull (2))); +#ifndef _ISOMAC +libc_hidden_proto (__libc_alloc_buffer_copy_string) +#endif /* Copy the string at SRC into the buffer, including its null terminator. If there is not enough room in the buffer, the buffer @@ -377,12 +392,4 @@ alloc_buffer_copy_string (struct alloc_buffer *buf, const char *src) return result; } -#ifndef _ISOMAC -libc_hidden_proto (__libc_alloc_buffer_alloc_array) -libc_hidden_proto (__libc_alloc_buffer_allocate) -libc_hidden_proto (__libc_alloc_buffer_copy_bytes) -libc_hidden_proto (__libc_alloc_buffer_copy_string) -libc_hidden_proto (__libc_alloc_buffer_create_failure) -#endif - #endif /* _ALLOC_BUFFER_H */
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