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| author | mithe24 <mithe24@student.sdu.dk> | 2025-10-08 13:35:41 +0200 |
|---|---|---|
| committer | mithe24 <mithe24@student.sdu.dk> | 2025-10-29 13:49:57 +0100 |
| commit | fa03afa46984fbf6eacbd5540e4e318d161cbbe0 (patch) | |
| tree | cd5e2f567a407ee459d94fcfd8ed3088fce3bc96 /src/lib/fileHandling.s | |
| parent | 07816c4c9c257c327bb93a72ed3a9b680816136c (diff) | |
| download | sorter-fa03afa46984fbf6eacbd5540e4e318d161cbbe0.tar.gz sorter-fa03afa46984fbf6eacbd5540e4e318d161cbbe0.zip | |
chore(snippets): move snippetss to src/
Diffstat (limited to 'src/lib/fileHandling.s')
| -rw-r--r-- | src/lib/fileHandling.s | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/lib/fileHandling.s b/src/lib/fileHandling.s new file mode 100644 index 0000000..17a9428 --- /dev/null +++ b/src/lib/fileHandling.s @@ -0,0 +1,16 @@ +# int getFileSize(int fd) +# +# Returns the size (in bytes) of the file indicated by the file descriptor. +.section .data +.Lstat: .space 144 # size of the fstat struct +.section .text +.globl getFileSize +.type getFileSize, @function +getFileSize: + movq $5, %rax # fstat + # rdi already contains the fd + movq $.Lstat, %rsi # buffer to write fstat data into + syscall + movq $.Lstat, %rax + movq 48(%rax), %rax # position of size in the struct + ret |